WO2017047864A1 - Mechanical multi-stage cylinder - Google Patents

Mechanical multi-stage cylinder Download PDF

Info

Publication number
WO2017047864A1
WO2017047864A1 PCT/KR2015/011372 KR2015011372W WO2017047864A1 WO 2017047864 A1 WO2017047864 A1 WO 2017047864A1 KR 2015011372 W KR2015011372 W KR 2015011372W WO 2017047864 A1 WO2017047864 A1 WO 2017047864A1
Authority
WO
WIPO (PCT)
Prior art keywords
rod
drive
coupled
cylinder
tube
Prior art date
Application number
PCT/KR2015/011372
Other languages
French (fr)
Korean (ko)
Inventor
박웅길
김용호
윤준의
박재승
Original Assignee
(주)남광
박웅길
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
Priority claimed from KR1020150130383A external-priority patent/KR20170032933A/en
Priority claimed from KR1020150142245A external-priority patent/KR20170043137A/en
Application filed by (주)남광, 박웅길 filed Critical (주)남광
Publication of WO2017047864A1 publication Critical patent/WO2017047864A1/en

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
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • 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
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/12—Differential gearings without gears having orbital motion
    • F16H48/19—Differential gearings without gears having orbital motion consisting of two linked clutches
    • 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating

Definitions

  • the present invention relates to a mechanical multi-stage cylinder provided with a screw and nut inside the rod so that a plurality of rods can be moved forward and backward at the same time.
  • the cylinder is a hollow type device in which the rod reciprocates by hydraulic or pneumatic, electric or the like. It is applied to various mechanical devices that need to be driven linearly, and is used under various names such as cylinders, linear drives, reciprocating devices, ballscrews, actuators, and the like.
  • the diameter of the rod of the end is relatively large by applying hydraulic pressure or pneumatic pressure, as disclosed in Korean Patent Laid-Open Publication No. 10-2012-0118558 to facilitate high load.
  • the oil, pneumatic supply and plumbing device should be provided, the internal structure of the cylinder is relatively complicated, which makes it difficult to manufacture and maintain.
  • the present invention can reduce the relative diameter difference between the tube and the rod so that the multi-stage cylinder without the pneumatic or hydraulic circuit can be applied to a relatively high load object, and the screw and nut that is easily damaged by the impact on the outside is built in
  • the object is to provide a mechanical multistage cylinder that is resistant to impact.
  • a bearing is mounted on the outer circumferential surface of the main body, and a tube nut is provided therein, and a tube cover is provided at one end thereof, and a stopper is provided at the other end thereof.
  • a cylindrical main tube to be joined and a first lead screw and a first drive unit are provided at one end, a first rod cover is provided at the other end, a first lead nut is built in, and the first drive unit and the extension joint It is provided with an extension drive of the hollow form located on the outer circumferential surface of the drive shaft and the first rod of the cylindrical coupling to the main tube and the second lead screw, the second drive unit and the first clutch is provided at one end and the other end
  • the second clutch and the second rod cover is provided, and the second lead nut is built in to engage with the first rod.
  • a mechanical multistage cylinder having a cylindrical second rod and a third lead screw at one end thereof and a bracket at the other end thereof and having a cylindrical third rod coupled to the second rod.
  • the first drive unit includes a first drive joint, first and second torque joints, a first drive torque bar, a first drive spring, a first drive lining, and a first drive cover.
  • the second drive unit includes a second drive joint and a second drive torque bar, and is coupled to the extension drive outer circumferential surface.
  • first rod oil seal and the first rod bush are provided on the first rod cover side
  • second rod oil seal and the second rod bush are provided on the second rod cover side.
  • Mechanical multi-stage cylinder according to the present invention does not need to be provided with a hydraulic or pneumatic circuit compared to a hydraulic or pneumatic multi-stage cylinder, the internal structure is relatively simple, the screw and nut are not exposed to the outside and the tube and the first and second rod, respectively In addition to the built-in to prevent damage to the screw and nut at the source due to external impact, as well as to prevent foreign matter from flowing into the nut and screw can significantly increase the life of the cylinder. In addition, in general, the diameter difference between the developing rod and the fixed body of the mechanical multi-stage cylinder is significantly reduced, thereby effectively moving the object forward and backward with a compact size cylinder.
  • FIG. 1 is a three-dimensional view showing the internal structure of a conventional double-acting multistage pneumatic cylinder.
  • Figure 2 is a cross-sectional view of the mechanical multistage cylinder according to the first embodiment of the present invention.
  • Figure 3 is a cross-sectional view when the mechanical multistage cylinder first embodiment operation in accordance with the present invention.
  • Figure 4 is a cross-sectional view of the mechanical multistage cylinder according to the second embodiment of the present invention.
  • FIG. 5 is a cross-sectional view of a first drive unit of a second embodiment of a mechanical multistage cylinder according to the present invention.
  • FIG. 6 is a cross-sectional view of the mechanical multistage cylinder in accordance with a second embodiment of the present invention.
  • Figure 7 is a cross-sectional view when the operation of the mechanical multistage cylinder second embodiment according to the present invention.
  • FIG. 2 is a cross-sectional view of the mechanical multi-stage cylinder according to the first embodiment of the present invention with reference to the configuration of the first embodiment of the present invention as follows.
  • the main body 10 is built in the drive shaft 12 is rotated by the bearing 11 is mounted on the outer circumferential surface; and the tube nut 21 is provided inside the tube cover 22 at one end
  • a cylindrical main tube 20 coupled to the main body 10 and positioned inside the main tube 20 and coupled to an outer circumferential surface of the drive shaft 12 and the tube nut 21.
  • the first drive unit 32 is provided with a first lead screw 31 to rotate in engagement with the first rod and the first rod 30 is provided with a first lead nut 35 therein; and the first rod 30 And a second rod (40) having a second lead screw (41) rotating in engagement with the first lead nut (35) and having a bracket (52) at the end thereof.
  • Mechanical multistage cylinder Mechanical multistage cylinder.
  • Figure 3 is a cross-sectional view when completing the first mechanical mechanical multi-stage operation according to the present invention will be described with reference to this the operating principle of the first embodiment of the present invention.
  • the first rod () is formed by the tube nut 21 formed in the main tube 30. 30) rotates and advances.
  • the second rod 40 is advanced by the second lead screw 41 along the first lead nut 35 provided in the first rod 30.
  • the bracket 52 is fixed to the object to be moved forward or backward, the second rod 40 is to move forward or backward without rotating.
  • FIG. 4 is a cross-sectional view of the mechanical multi-stage cylinder according to the second embodiment of the present invention with reference to the configuration of another embodiment of the present invention as follows.
  • the main body 10 is built in the drive shaft 12 is rotated by the bearing 11 is mounted on the outer circumferential surface; and the tube nut 21 is provided inside the tube cover 22 and The stopper 26 is provided at the other end and has a cylindrical main tube 20 which is coupled to the main body 10; and one end of the first lead screw 31 and the first drive unit 32 are provided at the other end.
  • a first clutch 38 and a first rod cover 34 are provided, and a first lead nut 33 is embedded therein, the first drive unit 32 and the extension joint 33 are coupled to each other.
  • a hollow extension drive 34 disposed on an outer circumferential surface of the drive shaft 12 and having a cylindrical first rod 30 coupled to the main tube 20; and a second lead screw 41 at one end thereof;
  • the second drive unit 42 and the second clutch 48 are provided, and the second rod cover 44 is provided at the other end.
  • a second rod 40 having a cylindrical shape in which a second lead nut 43 is embedded to be coupled to the first rod 30; and a third lead screw 51 at one end thereof and a bracket 52 at the other end thereof.
  • first rod oil seal 36 and the first rod bush 37 are provided on the first rod cover 35 side, and the second rod oil seal 45 on the second rod cover 44 side. And a second rod bush 46 is provided.
  • the first and second clutches 48 and 49 may be one of a coil spring clutch, a diaphragm spring clutch, and a centrifugal clutch. In addition, various known clutches may be applied.
  • the tube nut coupling portion 25, the first lead nut coupling portion 38 and the second lead nut coupling portion 47 are formed of grooves and protrusions, and the nut is processed inside a relatively short hollow tube. Combining a plurality of cylinders to fully extend the length of the cylinder.
  • FIG. 5 is a cross-sectional view of the first drive unit of the second embodiment of the mechanical multistage cylinder according to the present invention. Referring to this, the detailed configuration of the first drive unit 32 of the second embodiment is as follows.
  • the first drive unit 32 includes a first drive joint 32a, first and second torque joints 32b and 32c, a first drive torque bar 32d, a first drive spring 32e, and a first drive. It consists of the lining 32f and the 1st drive cover 32g.
  • the second drive unit 42 is provided with a second drive joint 42a and a second drive torque bar 42b and is coupled to the outer circumferential surface of the extension drive 33.
  • FIGS. 6 and 7 are cross-sectional views of the mechanical multistage cylinder according to the present invention during the operation and the completion of the operation of the second embodiment.
  • the second drive unit 42 and the second lead ride on the outer circumferential surface of the extension shaft 34 coupled to the outer circumferential surface of the drive shaft 12.
  • the screw 41 rotates in engagement with the first lead nut 33.
  • the second rod 40 is rotated and advanced, and at this time, the third rod 50 by the third lead screw 51 which rotates in engagement with the second lead nut 43 provided in the second rod 40.
  • Advances As described above, when the first rod 38 and the second clutch 39 come into contact with each other while the second rod 40 and the third rod 50 move forward, the first drive unit fixed to the stopper 26 ( 32) add rotational force.
  • the first drive lining 32f in contact with the first torque joint 32b rotates the first drive torque bar 32d while being in contact with the first and second torque joints 32b and 32c by a predetermined or more rotational force.
  • the first drive unit 32 is separated from the stopper 16 by elasticity with the first drive spring 32e.
  • the first rod screw 31 rotates while being engaged with the tube nut 21 to advance the first rod 20.
  • the extension shaft 34 also rotates the second lead nut 43 while rotating and advancing by the first drive unit 32 to perform the advance of the third rod 50.
  • the first drive unit 30 serves as a torque limiter. Therefore, it is a matter of course that the structure of the various torque limiters known in the art is not limited to the above structure.
  • the advancement of the second rod 40 is 100% completed before the first drive unit 32 is separated from the stopper 26, and at the same time the third rod 50 is 50% advancement. .
  • This can be easily applied through the pitch adjustment of each screw and nut.
  • the forward movement of the second rod 40 is 100% completed, and the first drive unit 32 is separated from the stopper 26 by the first clutch 48 and the second clutch 49 contacting and engaging.
  • the third rod also completes the remaining 50% of advancement.
  • the first, second and third rods 30, 40, and 50 of which the forwarding is completed are compressed in the reverse order to the above-described forwarding process.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)
  • Transmission Devices (AREA)

Abstract

The present invention relates to a mechanical multi-stage cylinder having screws and nuts inside a plurality of rods such that the rods can simultaneously move forward or backward, the cylinder comprising: a main body having a drive shaft, which is embedded therein and has a bearing mounted on an outer circumferential surface thereof and rotating; a cylindrical main tube having a tube nut provided therein, a tube cover provided on one end thereof, and a stopper provided on the other end so as to be coupled to the main body; a cylindrical first rod having a first lead screw and a first drive unit respectively provided on one end thereof, a first rod cover provided on the other end, and a first lead nut provided therein, coupled to the first drive unit by an extension joint, and having a hollow extension drive, which is positioned on the outer circumferential surface of the drive shaft, so as to be coupled to the main tube; a cylindrical second rod having a second lead screw, a second drive unit and a first clutch respectively provided on one end thereof, a second clutch and a second rod cover respectively provided on the other end, and a second lead nut provided therein, so as to be coupled to the first rod; and a cylindrical third rod having a third lead screw provided on one end thereof and a bracket provided on the other end, so as to be coupled to the second rod, wherein, compared to a hydraulic or pneumatic multi-stage cylinder, the internal structure is relatively simple since no hydraulic or pneumatic circuit is required to be provided, and the screws and nuts are not exposed to the outside but respectively provided within the tubes and at first and second rods such that damage caused by external impact on the screws and nuts can be fundamentally prevented, and the introduction of foreign matter into the nuts and screws can be prevented, thereby significantly increasing the lifespan of the cylinder. In addition, the difference in the diameters of the rods in the mechanical multi-stage cylinder, which normally moves, and in the body of the mechanical multi-stage cylinder, which is normally fixed, can be significantly reduced so as to effectively move an object toward a compact-sized cylinder forward or backward.

Description

기계식 다단 실린더Mechanical multistage cylinder
본 발명은 복수 개의 로드가 동시에 전, 후진할 수 있도록 로드 내부에 스크류 및 너트가 구비되는 기계식 다단 실린더에 관한 것이다.The present invention relates to a mechanical multi-stage cylinder provided with a screw and nut inside the rod so that a plurality of rods can be moved forward and backward at the same time.
일반적으로, 실린더는 유압 또는 공압, 전기 등에 의하여 로드가 왕복 운동을 하는 중공 형태의 장치이다. 이는 선형으로 구동이 필요한 다양한 기계장치에 적용되며 실린더, 선형구동장치, 왕복 장치, 볼스크류, 엑츄에이터 등 다양한 명칭으로 사용되고 있다. 다단 실린더의 경우, 도 1을 참조하면 대한민국 공개특허공보 제10-2012-0118558호에 개시되어 있는 바와 같이 유압 또는 공압을 적용하여 말단의 로드의 직경을 비교적 크게 형성하여 고하중에 용이하다. 그러나, 유, 공압 공급 및 배관 장치가 구비되어야 하므로, 실린더의 내부 구조가 비교적 복잡하며, 이로 인한 제작 및 정비에 어려움이 있다.In general, the cylinder is a hollow type device in which the rod reciprocates by hydraulic or pneumatic, electric or the like. It is applied to various mechanical devices that need to be driven linearly, and is used under various names such as cylinders, linear drives, reciprocating devices, ballscrews, actuators, and the like. In the case of a multi-stage cylinder, referring to FIG. 1, the diameter of the rod of the end is relatively large by applying hydraulic pressure or pneumatic pressure, as disclosed in Korean Patent Laid-Open Publication No. 10-2012-0118558 to facilitate high load. However, since the oil, pneumatic supply and plumbing device should be provided, the internal structure of the cylinder is relatively complicated, which makes it difficult to manufacture and maintain.
기계식 다단 실린더의 경우, 전개되는 로드 외부에 나사산이 형성되어 외부 충격 등에 의하여 비교적 쉽게 파손되는 것은 물론 나사산 사이에 이물질이 쉽게 유입되어 실린더의 수명이 현저하게 단축되는 문제점이 있다. 또한, 전개되는 로드와 고정되는 바디의 직경이 현저하게 차이가 발생하여 실린더의 크기가 커져야 하는 문제점이 있다.In the case of a mechanical multi-stage cylinder, a thread is formed on the outside of the rod to be developed, and thus, it is relatively easy to be damaged by an external impact or the like, and foreign matter easily flows in between the threads, which significantly shortens the life of the cylinder. In addition, there is a problem in that the diameter of the rod to be deployed and the body to be fixed are remarkably different to increase the size of the cylinder.
본 발명은 공압 또는 유압회로를 구비하지 않는 다단 실린더가 비교적 고하중의 대상물에 적용될 수 있도록 튜브와 로드의 상대적인 직경 차이를 줄일 수 있고 외부에 충격에 의하여 쉽게 손상되는 스크류 및 너트가 내장되어 외부에 충격에 강한 기계식 다단 실린더를 제공하는 데에 목적이 있다.The present invention can reduce the relative diameter difference between the tube and the rod so that the multi-stage cylinder without the pneumatic or hydraulic circuit can be applied to a relatively high load object, and the screw and nut that is easily damaged by the impact on the outside is built in The object is to provide a mechanical multistage cylinder that is resistant to impact.
본 발명의 목적을 달성하기 위한 구성으로는 외주면에 베어링이 장착되어 회전하는 드라이브 샤프트가 내장되는 메인 바디와 내부에 튜브 너트가 구비되며 일단에 튜브 커버와 타단에 스토퍼가 구비되어 상기의 메인 바디와 결합하는 원통형의 메인 튜브와 일단에 제 1리드 스크류와 제 1드라이브 유닛이 구비되며 타단에 제 1로드 커버가 구비되고, 제 1리드 너트가 내장되며, 상기의 제 1드라이브 유닛과 익스텐션 조인트에 의하여 결합하며 상기의 드라이브 샤프트 외주면에 위치하는 중공 형태의 익스텐션 드라이브가 구비되어 상기의 메인 튜브와 결합하는 원통형의 제 1로드와 일단에 제 2리드 스크류와 제 2드라이브 유닛과 제 1클러치가 구비되며 타단에 제 2클러치 및 제 2로드 커버가 구비되고, 제 2리드 너트가 내장되어 상기의 제 1로드와 결합하는 원통형의 제 2로드와 일단에 제 3리드 스크류가 구비되며 타단에 브라켓이 구비되어 상기의 제 2로드와 결합하는 원통형의 제 3로드가 구비되는 기계식 다단 실린더이다.In order to achieve the object of the present invention, a bearing is mounted on the outer circumferential surface of the main body, and a tube nut is provided therein, and a tube cover is provided at one end thereof, and a stopper is provided at the other end thereof. A cylindrical main tube to be joined and a first lead screw and a first drive unit are provided at one end, a first rod cover is provided at the other end, a first lead nut is built in, and the first drive unit and the extension joint It is provided with an extension drive of the hollow form located on the outer circumferential surface of the drive shaft and the first rod of the cylindrical coupling to the main tube and the second lead screw, the second drive unit and the first clutch is provided at one end and the other end The second clutch and the second rod cover is provided, and the second lead nut is built in to engage with the first rod. Is a mechanical multistage cylinder having a cylindrical second rod and a third lead screw at one end thereof and a bracket at the other end thereof and having a cylindrical third rod coupled to the second rod.
본 발명의 다른 특징으로는 상기의 제 1드라이브 유닛은 제 1드라이브 조인트와 제 1, 2토크 조인트, 제 1드라이브 토크바, 제 1드라이브 스프링, 제 1드라이브 라이닝 및 제 1드라이브 커버로 구성되며, 상기의 제 2드라이브 유닛은 제 2드라이브 조인트와 제 2드라이브 토크바가 구비되며 상기의 익스텐션 드라이브 외주면에 결합한다.In another aspect of the present invention, the first drive unit includes a first drive joint, first and second torque joints, a first drive torque bar, a first drive spring, a first drive lining, and a first drive cover. The second drive unit includes a second drive joint and a second drive torque bar, and is coupled to the extension drive outer circumferential surface.
본 발명의 또 다른 특징으로는, 상기의 제 1로드 커버 측에 제 1로드 오일씰과 제 1로드 부시가 구비되며, 상기의 제 2로드 커버 측에 제 2로드 오일씰과 제 2로드 부시가 구비된다.In still another aspect of the present invention, the first rod oil seal and the first rod bush are provided on the first rod cover side, and the second rod oil seal and the second rod bush are provided on the second rod cover side. .
본 발명에 따른 기계식 다단 실린더는 유압 또는 공압식 다단 실린더와 대비하여 유압, 공압 회로가 구비될 필요가 없어 내부 구조가 비교적 간단하며, 스크류 및 너트가 외부로 노출되지 않고 각각 튜브 및 제 1, 2로드에 내장되어 외부 충격으로 스크류 및 너트가 파손되는 것을 원천적으로 방지할 수 있음은 물론, 너트 및 스크류에 이물질이 유입되는 것을 방지할 수 있어 실린더의 수명을 현저하게 증가시킬 수 있다. 또한, 일반적으로 기계식 다단 실린더의 전개되는 로드와 고정되는 바디의 직경 차이를 현저하게 작게 하여 컴팩트한 크기의 실린더로 대상물을 효과적으로 전, 후진 시킬 수 있는 효과가 있다.Mechanical multi-stage cylinder according to the present invention does not need to be provided with a hydraulic or pneumatic circuit compared to a hydraulic or pneumatic multi-stage cylinder, the internal structure is relatively simple, the screw and nut are not exposed to the outside and the tube and the first and second rod, respectively In addition to the built-in to prevent damage to the screw and nut at the source due to external impact, as well as to prevent foreign matter from flowing into the nut and screw can significantly increase the life of the cylinder. In addition, in general, the diameter difference between the developing rod and the fixed body of the mechanical multi-stage cylinder is significantly reduced, thereby effectively moving the object forward and backward with a compact size cylinder.
도 1은 기존의 복동식 다단 공압 실린더의 내부 구조를 나타낸 입체도.1 is a three-dimensional view showing the internal structure of a conventional double-acting multistage pneumatic cylinder.
도 2는 본 발명에 따른 기계식 다단 실린더 제 1실시 예의 압축 시 단면도.Figure 2 is a cross-sectional view of the mechanical multistage cylinder according to the first embodiment of the present invention.
도 3은 본 발명에 따른 기계식 다단 실린더 제 1실시 동작 완료 시 단면도.Figure 3 is a cross-sectional view when the mechanical multistage cylinder first embodiment operation in accordance with the present invention.
도 4는 본 발명에 따른 기계식 다단 실린더 제 2실시 예의 압축 시 단면도.Figure 4 is a cross-sectional view of the mechanical multistage cylinder according to the second embodiment of the present invention.
도 5는 본 발명에 따른 기계식 다단 실린더 제 2실시 예의 제 1드라이브 유닛 단면도.5 is a cross-sectional view of a first drive unit of a second embodiment of a mechanical multistage cylinder according to the present invention;
도 6은 본 발명에 따른 기계식 다단 실린더 제 2실시 예의 동작 중 단면도.6 is a cross-sectional view of the mechanical multistage cylinder in accordance with a second embodiment of the present invention;
도 7은 본 발명에 따른 기계식 다단 실린더 제 2실시 예의 동작 완료 시 단면도.Figure 7 is a cross-sectional view when the operation of the mechanical multistage cylinder second embodiment according to the present invention.
도 2는 본 발명에 따른 기계식 다단 실린더 제 1실시 예의 압축 시 단면도로서 이를 참고하여 본원발명 제 1실시 예의 구성을 설명하면 하기와 같다.2 is a cross-sectional view of the mechanical multi-stage cylinder according to the first embodiment of the present invention with reference to the configuration of the first embodiment of the present invention as follows.
기계식 다단 실린더에 있어서, 외주면에 베어링(11)이 장착되어 회전하는 드라이브 샤프트(12)가 내장되는 메인 바디(10);와 내부에 튜브 너트(21)가 구비되며 일단에 튜브 커버(22)가 구비되어 상기의 메인 바디(10)와 결합하는 원통형의 메인 튜브(20);와 상기의 메인 튜브(20) 내부에 위치하며 상기의 드라이브 샤프트(12) 외주 면에 결합하고 상기의 튜브 너트(21)와 맞물려 회전하는 제 1리드 스크류(31)가 구비되는 제 1드라이브 유닛(32)과 내측에 제 1리드 너트(35)가 구비되는 제 1로드(30);와 상기의 제 1로드(30)에 내장되며 상기의 제 1리드 너트(35)와 맞물려 회전하는 제 2리드 스크류(41)가 구비되며 말단에 브라켓(52)이 구비되는 제 2로드(40);로 구성되는 것을 특징으로 하는 기계식 다단 실린더이다.In the mechanical multi-stage cylinder, the main body 10 is built in the drive shaft 12 is rotated by the bearing 11 is mounted on the outer circumferential surface; and the tube nut 21 is provided inside the tube cover 22 at one end A cylindrical main tube 20 coupled to the main body 10 and positioned inside the main tube 20 and coupled to an outer circumferential surface of the drive shaft 12 and the tube nut 21. The first drive unit 32 is provided with a first lead screw 31 to rotate in engagement with the first rod and the first rod 30 is provided with a first lead nut 35 therein; and the first rod 30 And a second rod (40) having a second lead screw (41) rotating in engagement with the first lead nut (35) and having a bracket (52) at the end thereof. Mechanical multistage cylinder.
그리고, 도 3은 본 발명에 따른 기계식 다단 실린더 제 1실시 동작 완료 시 단면도로서 이를 참고하여 본원발명의 제 1실시 예의 작동 원리를 설명하면 하기와 같다.And, Figure 3 is a cross-sectional view when completing the first mechanical mechanical multi-stage operation according to the present invention will be described with reference to this the operating principle of the first embodiment of the present invention.
구동부(10)에 의하여 드라이브 샤프트(12)와 제 1드라이브 유닛(3)에 구비되는 제 1리드 스크류(31)가 회전하면서 메인 튜브(30)에 구성된 튜브 너트(21)에 의하여 제 1로드(30)가 회전 및 전진한다. 이때, 제 1로드(30)에 구비되는 제 1리드 너트(35)를 따라 제 2리드 스크류(41)에 의하여 제 2로드(40)가 전진한다. 이때, 브라켓(52)이 전진 또는 후진하고자 하는 대상물에 고정될 경우, 상기의 제 2로드(40)는 회전하지 않고 전진 또는 후진을 하게 된다.As the first lead screw 31 provided in the drive shaft 12 and the first drive unit 3 is rotated by the drive unit 10, the first rod () is formed by the tube nut 21 formed in the main tube 30. 30) rotates and advances. At this time, the second rod 40 is advanced by the second lead screw 41 along the first lead nut 35 provided in the first rod 30. At this time, when the bracket 52 is fixed to the object to be moved forward or backward, the second rod 40 is to move forward or backward without rotating.
도 4는 본 발명에 따른 기계식 다단 실린더 제 2실시 예의 압축 시 단면도로서 이를 참고하여 본원 발명에 또 다른 실시 예의 구성을 설명하면 하기와 같다.4 is a cross-sectional view of the mechanical multi-stage cylinder according to the second embodiment of the present invention with reference to the configuration of another embodiment of the present invention as follows.
기계식 다단 실린더에 있어서, 외주면에 베어링(11)이 장착되어 회전하는 드라이브 샤프트(12)가 내장되는 메인 바디(10);와 내부에 튜브 너트(21)가 구비되며 일단에 튜브 커버(22)와 타단에 스토퍼(26)가 구비되어 상기의 메인 바디(10)와 결합하는 원통형의 메인 튜브(20);와 일단에 제 1리드 스크류(31)와 제 1드라이브 유닛(32)이 구비되며 타단에 제 1클러치(38) 및 제 1로드 커버(34)가 구비되고, 제 1리드 너트(33)가 내장되며, 상기의 제 1드라이브 유닛(32)과 익스텐션 조인트(33)에 의하여 결합하며 상기의 드라이브 샤프트(12) 외주면에 위치하는 중공 형태의 익스텐션 드라이브(34)가 구비되어 상기의 메인 튜브(20)와 결합하는 원통형의 제 1로드(30);와 일단에 제 2리드 스크류(41)와 제 2드라이브 유닛(42) 및 제 2클러치(48)가 구비되며 타단에 제 2로드 커버(44)가 구비되고, 제 2리드 너트(43)가 내장되어 상기의 제 1로드(30)와 결합하는 원통형의 제 2로드(40);와 일단에 제 3리드 스크류(51)가 구비되며 타단에 브라켓(52)이 구비되어 상기의 제 2로드(40)와 결합하는 원통형의 제 3로드(50);로 구성되는 것을 특징으로 하는 기계식 다단 실린더이다.In the mechanical multi-stage cylinder, the main body 10 is built in the drive shaft 12 is rotated by the bearing 11 is mounted on the outer circumferential surface; and the tube nut 21 is provided inside the tube cover 22 and The stopper 26 is provided at the other end and has a cylindrical main tube 20 which is coupled to the main body 10; and one end of the first lead screw 31 and the first drive unit 32 are provided at the other end. A first clutch 38 and a first rod cover 34 are provided, and a first lead nut 33 is embedded therein, the first drive unit 32 and the extension joint 33 are coupled to each other. A hollow extension drive 34 disposed on an outer circumferential surface of the drive shaft 12 and having a cylindrical first rod 30 coupled to the main tube 20; and a second lead screw 41 at one end thereof; The second drive unit 42 and the second clutch 48 are provided, and the second rod cover 44 is provided at the other end. And a second rod 40 having a cylindrical shape in which a second lead nut 43 is embedded to be coupled to the first rod 30; and a third lead screw 51 at one end thereof and a bracket 52 at the other end thereof. ) Is provided with a cylindrical third rod (50) coupled to the second rod (40); mechanical multistage cylinder, characterized in that consisting of.
또한, 상기의 제 1로드 커버(35) 측에 제 1로드 오일씰(36)과 제 1로드 부시(37)가 구비되며, 상기의 제 2로드 커버(44) 측에 제 2로드 오일씰(45)과 제 2로드 부시(46)가 구비되는 것을 특징으로 한다.Further, the first rod oil seal 36 and the first rod bush 37 are provided on the first rod cover 35 side, and the second rod oil seal 45 on the second rod cover 44 side. And a second rod bush 46 is provided.
그리고, 상기의 제 1, 2클러치(48,49)는 코일 스프링 클러치, 다이어프램 스프링 클러치, 원심 클러치 중 하나인 것을 특징으로 한다. 이외에도, 공지되어 있는 다양한 클러치가 적용될 수 있음은 물론이다.The first and second clutches 48 and 49 may be one of a coil spring clutch, a diaphragm spring clutch, and a centrifugal clutch. In addition, various known clutches may be applied.
또한, 상기의 튜브 너트 결합부(25)와 제 1리드 너트 결합부(38) 및 제 2리드 너트 결합부(47)는 홈과 돌기로 구성되어 비교적 길이가 짧은 중공관 내측에 너트 가공한 후 복수 개를 결합하여 실린더의 길이를 충분히 연장할 수 있도록 한다.In addition, the tube nut coupling portion 25, the first lead nut coupling portion 38 and the second lead nut coupling portion 47 are formed of grooves and protrusions, and the nut is processed inside a relatively short hollow tube. Combining a plurality of cylinders to fully extend the length of the cylinder.
도 5는 본 발명에 따른 기계식 다단 실린더 제 2실시 예의 제 1드라이브 유닛 단면도로서 이를 참고하여 제 2실시 예의 제 1드라이브 유닛(32)의 상세 구성을 설명하면 하기와 같다.FIG. 5 is a cross-sectional view of the first drive unit of the second embodiment of the mechanical multistage cylinder according to the present invention. Referring to this, the detailed configuration of the first drive unit 32 of the second embodiment is as follows.
상기의 제 1드라이브 유닛(32)은 제 1드라이브 조인트(32a)와 제 1, 2토크 조인트(32b, 32c), 제 1드라이브 토크바(32d), 제 1드라이브 스프링(32e), 제 1드라이브 라이닝(32f) 및 제 1드라이브 커버(32g)로 구성된다.The first drive unit 32 includes a first drive joint 32a, first and second torque joints 32b and 32c, a first drive torque bar 32d, a first drive spring 32e, and a first drive. It consists of the lining 32f and the 1st drive cover 32g.
그리고, 상기의 제 2드라이브 유닛(42)은 제 2드라이브 조인트(42a)와 제 2드라이브 토크바(42b)가 구비되며 상기의 익스텐션 드라이브(33) 외주면에 결합한다.The second drive unit 42 is provided with a second drive joint 42a and a second drive torque bar 42b and is coupled to the outer circumferential surface of the extension drive 33.
도 6과 7은 각각 본 발명에 따른 기계식 다단 실린더 제 2실시 예의 동작 중과 동작 완료 시 단면도로서 이를 참고하여 본원발명 제 2실시 예의 작동 원리를 설명하면 하기와 같다.6 and 7 are cross-sectional views of the mechanical multistage cylinder according to the present invention during the operation and the completion of the operation of the second embodiment.
드라이브 샤프트(12)가 모터, 잭스크류, 핸들, 공구 등에 의하여 회전하면 상기의 드라이브 샤프트(12) 외주면에 결합되어 있는 익스텐션 샤프트(34)의 외주면을 타고 제 2드라이브 유닛(42)과 제 2리드 스크류(41)가 제 1리드 너트(33)와 맞물려 회전한다. 이에 따라, 제 2로드(40)가 회전 및 전진하며 이때, 제 2로드(40)에 구비되는 제 2리드 너트(43)와 맞물려 회전하는 제 3리드 스크류(51)에 의하여 제 3로드(50)가 전진한다. 상기와 같이 제 2로드(40) 및 제 3로드(50)가 전진하면서 제 1클러치(38)와 제 2클러치(39)가 접촉되어 결합하면 스토퍼(26)에 고정되어 있는 제 1드라이브 유닛(32)에 회전력을 부가한다.When the drive shaft 12 rotates by a motor, a jackscrew, a handle, a tool, or the like, the second drive unit 42 and the second lead ride on the outer circumferential surface of the extension shaft 34 coupled to the outer circumferential surface of the drive shaft 12. The screw 41 rotates in engagement with the first lead nut 33. Accordingly, the second rod 40 is rotated and advanced, and at this time, the third rod 50 by the third lead screw 51 which rotates in engagement with the second lead nut 43 provided in the second rod 40. ) Advances. As described above, when the first rod 38 and the second clutch 39 come into contact with each other while the second rod 40 and the third rod 50 move forward, the first drive unit fixed to the stopper 26 ( 32) add rotational force.
이때, 제 1토크 조인트(32b)에 접촉되어 있는 제 1드라이브 라이닝(32f)이 일정 이상의 회전력에 의하여 제 1, 2토크 조인트(32b, 32c)와 접촉하면서 제 1드라이브 토크바(32d)를 회전시켜 제 1드라이브 스프링(32e)에 탄성으로 제 1드라이브 유닛(32)이 스토퍼(16)와 분리된다.At this time, the first drive lining 32f in contact with the first torque joint 32b rotates the first drive torque bar 32d while being in contact with the first and second torque joints 32b and 32c by a predetermined or more rotational force. The first drive unit 32 is separated from the stopper 16 by elasticity with the first drive spring 32e.
상기와 같이 스토퍼(16)와 분리된 제 1드라이브 유닛(32)은 제 1리드 스크류(31)가 튜브 너트(21)와 맞물려 회전하며 전진함으로 제 1로드(20)의 전진이 이루어진다. 이때, 상기의 익스텐션 샤프트(34) 역시 제 1드라이브 유닛(32)에 의하여 회전 및 전진하면서 제 2리드 너트(43)를 회전시켜 제 3로드(50)의 전진을 수행한다.As described above, in the first drive unit 32 separated from the stopper 16, the first rod screw 31 rotates while being engaged with the tube nut 21 to advance the first rod 20. At this time, the extension shaft 34 also rotates the second lead nut 43 while rotating and advancing by the first drive unit 32 to perform the advance of the third rod 50.
상기한 바와 같이 제 1드라이브 유닛(30)은 토크 리미터의 역할을 수행한다. 따라서, 상기의 구조에 한정되지 않고 공지되어 있는 다양한 토크 리미터의 구조 적용이 가능한 것은 물론이다. As described above, the first drive unit 30 serves as a torque limiter. Therefore, it is a matter of course that the structure of the various torque limiters known in the art is not limited to the above structure.
구체적인 실시 예로서, 제 1드라이브 유닛(32)이 스토퍼(26)와 분리되기 전에 제 2로드(40)의 전진은 100%완료되며, 동시에 제 3로드(50)는 50%의 전진이 수행된다. 이는 각각의 스크류와 너트의 피치 조절을 통하여 용이하게 적용할 수 있다. 상기와 같이 제 2로드(40)의 전진이 100%완료되며 제 1클러치(48)와 제 2클러치(49)가 접촉 및 결합에 의하여 제 1드라이브 유닛(32)이 스토퍼(26)와 분리되어 제 1로드(30)의 전진이 100%이루어지면서, 동시에 제 3로드 역시 나머지 50%의 전진을 완료한다. 또한, 상기와 같이 전진이 완료된 제 1, 2, 3로드(30, 40, 50)는 상술한 전진 과정과 역순으로 압축된다.As a specific example, the advancement of the second rod 40 is 100% completed before the first drive unit 32 is separated from the stopper 26, and at the same time the third rod 50 is 50% advancement. . This can be easily applied through the pitch adjustment of each screw and nut. As described above, the forward movement of the second rod 40 is 100% completed, and the first drive unit 32 is separated from the stopper 26 by the first clutch 48 and the second clutch 49 contacting and engaging. As the advancement of the first rod 30 is made 100%, the third rod also completes the remaining 50% of advancement. In addition, as described above, the first, second and third rods 30, 40, and 50 of which the forwarding is completed are compressed in the reverse order to the above-described forwarding process.
그리고, 상술한 기계식 다단 실린더는 3단이지만 익스텐션 샤프트 및 로드 등 동일한 구조를 추가하여 4단 이상으로 구성할 수 있음은 자명하다.In addition, although the above-described mechanical multistage cylinder is three stages, it is obvious that the same structure, such as an extension shaft and a rod, may be configured in four or more stages.
본 발명은 상기한 특징의 바람직한 실시 예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.The present invention is not limited to the preferred embodiments of the above features, and those skilled in the art to which the present invention pertains various modifications without departing from the gist of the invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (8)

  1. 기계식 다단 실린더에 있어서,In a mechanical multistage cylinder,
    외주면에 베어링(11)이 장착되어 회전하는 드라이브 샤프트(12)가 내장되는 메인 바디(10);와 A main body 10 having a drive shaft 12 rotating therein by mounting a bearing 11 on an outer circumferential surface thereof; and
    내부에 튜브 너트(21)가 구비되며 일단에 튜브 커버(22)가 구비되어 상기의 메인 바디(10)와 결합하는 원통형의 메인 튜브(20);와A tube nut 21 is provided inside and a tube cover 22 is provided at one end thereof, and a cylindrical main tube 20 is coupled to the main body 10.
    상기의 메인 튜브(20) 내부에 위치하며 상기의 드라이브 샤프트(12) 외주 면에 결합하고 상기의 튜브 너트(21)와 맞물려 회전하는 제 1리드 스크류(31)가 구비되는 제 1드라이브 유닛(32)과 내측에 제 1리드 너트(35)가 구비되는 제 1로드(30);와The first drive unit 32 is located in the main tube 20 and is provided with a first lead screw 31 coupled to the outer circumferential surface of the drive shaft 12 and engaged with the tube nut 21 to rotate. And a first rod 30 having a first lead nut 35 therein; and
    상기의 제 1로드(30)에 내장되며 상기의 제 1리드 너트(35)와 맞물려 회전하는 제 2리드 스크류(41)가 구비되며 말단에 브라켓(52)이 구비되는 제 2로드(40);로 구성되는 것을 특징으로 하는 기계식 다단 실린더.A second rod 40 embedded in the first rod 30 and having a second lead screw 41 engaged with the first lead nut 35 to rotate and having a bracket 52 at the end thereof; Mechanical multi-stage cylinder, characterized in that consisting of.
  2. 기계식 다단 실린더에 있어서,In a mechanical multistage cylinder,
    외주면에 베어링(11)이 장착되어 회전하는 드라이브 샤프트(12)가 내장되는 메인 바디(10);와A main body 10 having a drive shaft 12 rotating therein by mounting a bearing 11 on an outer circumferential surface thereof; and
    내부에 튜브 너트(21)가 구비되며 일단에 튜브 커버(22)와 타단에 스토퍼(26)가 구비되어 상기의 메인 바디(10)와 결합하는 원통형의 메인 튜브(20);와A tube nut 21 is provided therein, and a tube cover 22 at one end and a stopper 26 at the other end thereof are provided, and a cylindrical main tube 20 is coupled to the main body 10.
    일단에 제 1리드 스크류(31)와 제 1드라이브 유닛(32)이 구비되며 타단에 제 1로드 커버(34)가 구비되고, 제 1리드 너트(33)가 내장되며, 상기의 제 1드라이브 유닛(32)과 익스텐션 조인트(33)에 의하여 결합하며 상기의 드라이브 샤프트(12) 외주면에 위치하는 중공 형태의 익스텐션 드라이브(34)가 구비되어 상기의 메인 튜브(20)와 결합하는 원통형의 제 1로드(30);와One end of the first lead screw 31 and the first drive unit 32 is provided, the other end is provided with a first rod cover 34, the first lead nut 33 is built-in, the first drive unit A cylindrical first rod coupled with the extension joint 33 and a hollow extension drive 34 positioned on an outer circumferential surface of the drive shaft 12 is coupled to the main tube 20. 30; and
    일단에 제 2리드 스크류(41)와 제 2드라이브 유닛(42)과 제 1클러치(48)가 구비되며 타단에 제 2클러치(49) 및 제 2로드 커버(44)가 구비되고, 제 2리드 너트(43)가 내장되어 상기의 제 1로드(30)와 결합하는 원통형의 제 2로드(40);와The second lead screw 41, the second drive unit 42, and the first clutch 48 are provided at one end thereof, and the second clutch 49 and the second rod cover 44 are provided at the other end thereof. A cylindrical second rod 40 having a nut 43 therein and engaged with the first rod 30; and
    일단에 제 3리드 스크류(51)가 구비되며 타단에 브라켓(52)이 구비되어 상기의 제 2로드(40)와 결합하는 원통형의 제 3로드(50);로 구성되는 것을 특징으로 하는 기계식 다단 실린더.The third lead screw 51 is provided at one end and the bracket 52 is provided at the other end of the cylindrical third rod 50 coupled to the second rod 40; mechanical multistage characterized in that consisting of cylinder.
  3. 제 2항에 있어서,The method of claim 2,
    상기의 제 1드라이브 유닛(32)은 제 1드라이브 조인트(32a)와 제 1, 2토크 조인트(32b, 32c), 제 1드라이브 토크바(32d), 제 1드라이브 스프링(32e), 제 1드라이브 라이닝(32f) 및 제 1드라이브 커버(32g)로 구성되는 것을 특징으로 하는 기계식 다단 실린더.The first drive unit 32 includes a first drive joint 32a, first and second torque joints 32b and 32c, a first drive torque bar 32d, a first drive spring 32e, and a first drive. A mechanical multistage cylinder, comprising: a lining (32f) and a first drive cover (32g).
  4. 제 2항에 있어서,The method of claim 2,
    상기의 제 2드라이브 유닛(42)은 제 2드라이브 조인트(42a)와 제 2드라이브 토크바(42b)가 구비되며 상기의 익스텐션 드라이브(33) 외주면에 결합하는 것을 특징으로 하는 기계식 다단 실린더.The second drive unit (42) is a mechanical multi-stage cylinder, characterized in that the second drive joint (42a) and the second drive torque bar (42b) is provided and coupled to the outer peripheral surface of the extension drive (33).
  5. 제 2항에 있어서,The method of claim 2,
    상기의 제 1로드 커버(35) 측에 제 1로드 오일씰(36)과 제 1로드 부시(37)가 구비되는 것을 특징으로 하는 기계식 다단 실린더.The first multi-stage cylinder, characterized in that the first rod oil seal (36) and the first rod bush (37) is provided on the first rod cover (35) side.
  6. 제 2항에 있어서,The method of claim 2,
    상기의 제 2로드 커버(44) 측에 제 2로드 오일씰(45)과 제 2로드 부시(46)가 구비되는 것을 특징으로 하는 기계식 다단 실린더.A mechanical multistage cylinder, characterized in that the second rod oil seal (45) and the second rod bush (46) are provided on the second rod cover (44) side.
  7. 제 2항에 있어서,The method of claim 2,
    상기의 제 1, 2클러치(48,49)는 코일 스프링 클러치, 다이어프램 스프링 클러치, 원심 클러치 중 하나인 것을 특징으로 하는 기계식 다단 실린더.The first and second clutches (48,49) is a mechanical multi-stage cylinder, characterized in that one of the coil spring clutch, diaphragm spring clutch, centrifugal clutch.
  8. 제 1항 또는 제 2항에 있어서,The method according to claim 1 or 2,
    상기의 드라이브 샤프트(12)는 사각봉, 육각봉, 팔각봉, 스플라인, 볼스프라인 중 하나인 것을 특징으로 하는 기계식 다단 실린더.The drive shaft 12 is a mechanical multi-stage cylinder, characterized in that one of the square rod, hexagonal rod, octagonal rod, spline, ball spline.
PCT/KR2015/011372 2015-09-15 2015-10-27 Mechanical multi-stage cylinder WO2017047864A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020150130383A KR20170032933A (en) 2015-09-15 2015-09-15 Heavy Duty Mechenical Multistep Power Cylinder
KR10-2015-0130383 2015-09-15
KR1020150142245A KR20170043137A (en) 2015-10-12 2015-10-12 Mechenical Multistep Cylinder
KR10-2015-0142245 2015-10-12

Publications (1)

Publication Number Publication Date
WO2017047864A1 true WO2017047864A1 (en) 2017-03-23

Family

ID=58288985

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2015/011372 WO2017047864A1 (en) 2015-09-15 2015-10-27 Mechanical multi-stage cylinder

Country Status (1)

Country Link
WO (1) WO2017047864A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000074010A (en) * 1998-06-19 2000-03-07 Nabco Ltd Multi-step cylinder
JP3434778B2 (en) * 2000-04-18 2003-08-11 株式会社ファルコム Screw / hydraulic power cylinder mechanism
JP2004218733A (en) * 2003-01-15 2004-08-05 Yuasa Koki Kk Air bleeding structure in multi-stage hydraulic jack
KR100915023B1 (en) * 2009-04-29 2009-09-02 주식회사 우진산업 Water-gate opening and shutting control cylinder
KR101208436B1 (en) * 2012-01-16 2012-12-05 윤승재 The electric miltistage cylinder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000074010A (en) * 1998-06-19 2000-03-07 Nabco Ltd Multi-step cylinder
JP3434778B2 (en) * 2000-04-18 2003-08-11 株式会社ファルコム Screw / hydraulic power cylinder mechanism
JP2004218733A (en) * 2003-01-15 2004-08-05 Yuasa Koki Kk Air bleeding structure in multi-stage hydraulic jack
KR100915023B1 (en) * 2009-04-29 2009-09-02 주식회사 우진산업 Water-gate opening and shutting control cylinder
KR101208436B1 (en) * 2012-01-16 2012-12-05 윤승재 The electric miltistage cylinder

Similar Documents

Publication Publication Date Title
US11484991B2 (en) Internal and external clamping method and device of thin-wall tubular part during rotary processing
US9724807B2 (en) Clip clamping mechanism of pressure fixture and pneumatic caliper having the same
CN204397435U (en) Bar clamping device
CN104440060A (en) Screw grabbing mechanism and screw assembling robot including same
WO2017047864A1 (en) Mechanical multi-stage cylinder
CN106737801A (en) A kind of manipulator clamping jaw for being applied to put in part equipment
KR20170043137A (en) Mechenical Multistep Cylinder
CN203993764U (en) Link-type bracing or strutting arrangement
CN104961066A (en) Mechanical lifting rod with multiple lead screws
RU2017122217A (en) RING PUMP, METHOD OF FIXATION AND METHOD OF DISMANTLING ITS ROTATING PISTON
CN104551620A (en) Rapid disassembling and assembling device for gear shaft system
CN106041994B (en) A kind of feed screw nut's principle realizes hose-rigid pipe conversion equipment and method
CN106762981B (en) Detection means for hydraulic cylinder
CN109713841A (en) Ceases to be busy servo-electric push rod in four sections of one kind
CN106514623B (en) A kind of miniature controllable chuck mechanism for lasso trick
CN210565854U (en) Ball spline easy to process
CN204061784U (en) The ball leading screw driving device that fixed length is spacing
CN111531052A (en) Automatic pipe contracting device for seamless steel pipe
CN208199955U (en) A kind of automatic centering open-width apparatus
CN211082740U (en) Intermittent forward and reverse barring gear driven by hydraulic cylinder
CN110939709A (en) Intermittent forward and reverse barring gear driven by hydraulic cylinder
CN104790880A (en) Novel anti-falling device positive displacement motor drill
RU2402714C1 (en) Device for assembly of high pressure sleeves
CN205806451U (en) A kind of electronic AMT shift-selecting and changing actuating mechanism
CN109555497A (en) A kind of slim-hole reversible fishing socket and application method

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: 15904194

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 19/07/2018)

122 Ep: pct application non-entry in european phase

Ref document number: 15904194

Country of ref document: EP

Kind code of ref document: A1