KR200309436Y1 - Hydraulic jack that cylinder and contact surface of piston are strengthened - Google Patents
Hydraulic jack that cylinder and contact surface of piston are strengthened Download PDFInfo
- Publication number
- KR200309436Y1 KR200309436Y1 KR20-2002-0037898U KR20020037898U KR200309436Y1 KR 200309436 Y1 KR200309436 Y1 KR 200309436Y1 KR 20020037898 U KR20020037898 U KR 20020037898U KR 200309436 Y1 KR200309436 Y1 KR 200309436Y1
- Authority
- KR
- South Korea
- Prior art keywords
- cylinder
- piston
- close contact
- wall
- hydraulic jack
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/26—Adaptations or arrangements of pistons
- B66F3/28—Adaptations or arrangements of pistons telescopic
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Actuator (AREA)
Abstract
본 고안은 유압잭의 실린더와 피스톤의 접촉면에 보강부를 형성하여 실린더의 벽면이 소착 및 긁힘이 발생되는 것을 방지하기 위한 실린더와 피스톤의 접촉면이 보강된 유압잭에 관한 것이다.The present invention relates to a hydraulic jack with a reinforced contact surface between the cylinder and the piston to prevent the occurrence of sintering and scratches on the wall surface of the cylinder by forming a reinforcement on the contact surface of the cylinder and the piston of the hydraulic jack.
상기 한 본 고안의 유압잭은 유압펌프로 공급되는 유압의 유·출입구를 갖는 받침대와, 그 상부에 결합된 몸통실린더와 상기 몸통실린더내에 출몰되도록 적어도 1단 이상의 피스톤이 결합 구성된 유압잭에 있어서,The hydraulic jack of the present invention is a hydraulic jack which is provided with a hydraulic inlet and outlet of the hydraulic pressure supplied to the hydraulic pump, and a hydraulic cylinder coupled to the upper portion and at least one stage of the piston to be settled in the cylinder cylinder,
상기 실린더의 몸통실린더의 헤드부에 피스톤의 외벽면과 밀착되도록 돌출된 밀착부와 피스톤의 외측면 하부둘레에 실린더의 내측면과 접촉되도록 돌출된 밀착부를 구성하고, 상기 밀착부에 대응 밀착되는 실린더의 내벽면 및 피스톤의 외벽면의 재질보다 강도가 떨어지는 연성의 금속을 용접하고 이를 각 대응 접촉 몸체의 내경이나 외경의 크기로 가공하여 금속피막을 형성한 것을 특징으로 한다.A close contact portion projecting to be in close contact with the outer wall surface of the piston and a close contact portion projecting to be in contact with the inner surface of the cylinder at the lower periphery of the outer surface of the piston, and the corresponding close contact portion to the head portion of the cylinder cylinder of the cylinder. It is characterized in that the metal film is formed by welding a ductile metal of less strength than the material of the inner wall surface and the outer wall surface of the piston and processed to the size of the inner or outer diameter of each corresponding contact body.
이러한 본 고안의 유압잭은 작동시 각 밀착부에 형성된 금속피막이 각 몸체의 내벽 또는 외벽면과 밀착되어 슬라이딩되도록 함에 따라 큰 부하가 걸리더라도 접촉면간에 벽면을 긁거나 소착되는 현상을 방지할 수 있는 효과가 있다.The hydraulic jack of the present invention has the effect of preventing the phenomenon of scratching or squeezing the wall between contact surfaces even if a large load is applied, as the metal film formed on each close contact with the inner wall or the outer wall of each body slides in close contact. have.
Description
본 고안은 유압잭의 실린더와 피스톤의 접촉면에 금속피막을 형성하여 실린더의 벽면이 소착 및 긁힘이 발생되는 것을 방지하기 위한 실린더와 피스톤의 접촉면이 보강된 유압잭에 관한 것이다.The present invention relates to a hydraulic jack reinforced with a contact surface of the cylinder and the piston for forming a metal film on the contact surface of the cylinder and the piston of the hydraulic jack to prevent squeeze and scratches of the wall surface of the cylinder.
자동차와 같이 무거운 물건을 들어올리거나 덤프트럭의 적재함을 들어올리는유압잭의 구성은 도 1에 도시된 바와 같이 유압의 유·출입구(12)를 구비한 받침대(10)의 상부에 몸통실린더(14)가 있으며, 이 몸통실린더(14)의 내부에는 피스톤(16)이 출몰가능하도록 설치되어 있다.The hydraulic jack for lifting a heavy object such as a vehicle or lifting a dump truck's stacking box has a body cylinder 14 on the upper portion of the pedestal 10 having a hydraulic oil inlet / outlet 12 as shown in FIG. 1. The body cylinder 14 is provided so that the piston 16 can be sunk.
특히 몸통실린더(14)의 헤드부에는 피스톤(16)의 내벽과 밀착되도록 접촉링(15)이 링홈에 결합되어 있고, 피스톤(16)의 하부에도 몸통실린더(14)의 내벽과 밀착되는 링홈 및 이 링홈에 결합된 접촉링(17)이 형성되어 있다.In particular, the head of the cylinder cylinder 14, the contact ring 15 is coupled to the ring groove to be in close contact with the inner wall of the piston 16, the ring groove is in close contact with the inner wall of the body cylinder 14 in the lower portion of the piston 16 and A contact ring 17 coupled to the ring groove is formed.
이러한 구성에 의해 유압이 유·출입구를 통해 몸통실린더(14)의 내부로 유입되면 그 힘에 의해 피스톤(16)은 승강하게 되며 몸통실린더(14)의 내벽면과 밀착되어 있는 하부 둘레의 밀착부와 피스톤(16)의 외벽과 밀착되어 있는 몸통실린더(14) 헤드부의 접촉링(15)이 기밀하게 밀착된 상태로 슬라이딩된다.When the hydraulic pressure flows into the cylinder cylinder 14 through the oil inlet and outlet through this configuration, the piston 16 is lifted by the force, and the close part of the lower circumference closely contacted with the inner wall surface of the cylinder cylinder 14. And the contact ring 15 of the body cylinder head 14, which is in close contact with the outer wall of the piston 16, slide in an airtight state.
그러나 종래의 유압잭은 몸통실린더(14)의 내벽면과 피스톤(16)의 외벽면과 접촉을 접촉링(15)(17)에 의해 이루어지기 때문에 큰 하중을 들어올리는 유압잭이나 덤프트럭에 채용된 실린더의 경우에는 큰 부하가 걸리게 되면 접촉링이 실린더와 몸통실린더(14)의 접촉링(15)이 피스톤(16)의 외벽면이나 몸통실린더(14)의 내벽면을 긁어 상처를 내거나 소착되어 유압잭를 파손시키거나 수명을 단축시키는 문제점이 있었다.However, in the conventional hydraulic jack, since the contact ring 15 and 17 make contact with the inner wall surface of the cylinder cylinder 14 and the outer wall surface of the piston 16, a cylinder employed in a hydraulic jack or a dump truck for lifting a large load. In this case, when a large load is applied, the contact ring of the cylinder and the cylinder cylinder 14 contacts the outer wall surface of the piston 16 or the inner wall surface of the cylinder cylinder 14 to scratch or squeeze and break the hydraulic jack. There was a problem to reduce or shorten the life.
본 고안은 상기와 같은 종래의 문제점을 해소하기 위해 안출된 것으로, 그 목적은 유압잭를 이루는 몸통실린더와 상기 몸통실린더내에 1단 2단으로 출몰되는 피스톤에 접촉면을 형성하고 이에 연성의 금속피막을 입혀 큰 부하가 걸리더라도접촉면간에 벽면을 긁거나 소착되는 현상을 방지하여 유압잭의 내구성을 향상시킬 수 있도록 하는 접촉면 보강부를 갖는 실린더를 제공하는데 있다.The present invention has been made to solve the conventional problems as described above, the purpose is to form a contact surface on the cylinder cylinder forming the hydraulic jack and the piston that is indented in the first stage and the second stage in the cylinder cylinder and coated with a flexible metal film It is to provide a cylinder having a contact surface reinforcing portion to improve the durability of the hydraulic jack by preventing the phenomenon of scratching or squeezing the wall between the contact surface even under a load.
상기 목적을 달성하기 위한 본 고안은, 유압펌프로 공급되는 유압의 유·출입구를 갖는 받침대와, 그 상부에 결합된 몸통실린더와 상기 몸통실린더내에 출몰되도록 적어도 1단 이상의 피스톤이 결합 구성된 유압잭에 있어서,The present invention for achieving the above object is in the hydraulic jack which is provided with a pedestal having an oil inlet and outlet of the hydraulic pressure supplied to the hydraulic pump, and a body cylinder coupled to the upper portion and at least one stage of the piston to be settled in the body cylinder ,
상기 실린더의 몸통실린더의 헤드부에 피스톤의 외벽면과 밀착되도록 돌출된 밀착부와 피스톤의 외측면 하부둘레에 실린더의 내측면과 접촉되도록 돌출된 밀착부를 구성하고, 상기 밀착부에 대응 밀착되는 실린더의 내벽면 및 피스톤의 외벽면의 재질보다 강도가 떨어지는 연성의 금속을 용접하고 이를 각 대응 접촉 몸체의 내경이나 외경의 크기로 가공하여 금속피막을 형성함으로써 달성된다.A close contact portion projecting to be in close contact with the outer wall surface of the piston and a close contact portion projecting to be in contact with the inner surface of the cylinder at the lower periphery of the outer surface of the piston, and the corresponding close contact portion to the head portion of the cylinder cylinder of the cylinder. This is achieved by welding a ductile metal of less strength than the material of the inner wall of the piston and the outer wall of the piston and machining it to the size of the inner or outer diameter of each corresponding contact body to form a metal coating.
도 1은 종래의 기술에 따른 실린더 구조도.1 is a cylinder structure diagram according to the prior art.
도 2는 본 고안의 기술에 따른 실린더 구조도.Figure 2 is a cylinder structure diagram according to the technique of the present invention.
도 3은 도 2의 요부 확대도.3 is an enlarged view illustrating main parts of FIG. 2;
*** 도면의 주요 부분에 대한 부호의 설명 ****** Explanation of symbols for the main parts of the drawing ***
20 - 받침대 22 - 유로20-pedestal 22-euro
30 - 몸통실린더 31,41,43,51 - 밀착부30-Torso cylinder 31,41,43,51-Close contact
32,42,44,52 - 금속피막 40 - 중간실린더32,42,44,52-Metal film 40-Intermediate cylinder
50 - 피스톤 53 - 캡50-Piston 53-Cap
이하, 본 고안의 유압잭의 구조를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, the structure of the hydraulic jack of the present invention will be described in detail with reference to the accompanying drawings.
도 2는 본 고안의 기술에 따른 실린더 구조도이고, 도 3은 도 2의 요부 확대도이다.2 is a structural view of the cylinder according to the technique of the present invention, Figure 3 is an enlarged view of the main portion of FIG.
도시된 바와 같이 유압잭은 유압을 출입시킨 유로(22)를 구비한 하부의 받침대(20)와, 상기 받침대(20) 상에 안착결합되는 몸통실린더(30)와, 그 내부에 출몰가능하게 설치되는 피스톤으로 구성되는데, 신장길이를 확대하기 위해 피스톤(50)의 구성을 2단으로 하여 몸통실린더(30)의 내부에 출몰가능하게 결합되는 중간실린더(40)와, 중간실린더(40)의 내부에 출몰가능하게 결합되는 피스톤으로 구성된다.물론 몸통실린더(30)와 피스톤의 구성만으로 구성할 수 있다.As shown in the figure, the hydraulic jack has a lower pedestal 20 having a flow passage 22 through which hydraulic pressure is introduced and exited, a body cylinder 30 seated on the pedestal 20, and is mounted to be retractable therein. It is composed of a piston, the intermediate cylinder 40 and the intermediate cylinder 40, which is coupled to be retractable to the interior of the body cylinder 30 in two stages of the configuration of the piston 50 in order to expand the extension length, and the inside of the intermediate cylinder 40 It is composed of a piston that is releasably coupled. Of course, it can be configured only by the configuration of the body cylinder 30 and the piston.
상기 받침대(20)에는 유압의 출입이 가능하도록 유·출입구(22)가 형성되어 있고 이 유로(22)에는 도면에 도시되지 않은 유압펌프와 연결된 유압호스가 결합되어 있다.The pedestal 20 is provided with an oil inlet / outlet 22 to allow the hydraulic in and out, and a hydraulic hose connected to the hydraulic pump not shown in the drawing is coupled to the oil passage 22.
몸통실린더(30)는 받침부(20)에 수직으로 결합되어 있으며, 몸통실린더(30)의 헤드부는 내측으로 돌출되어 중간실린더(40)의 외벽면(2단의 경우)이나 피스톤(50)(1단의 경우)의 외벽과 밀착되도록 돌출된 밀착부(31)가 형성되어 있다.The body cylinder 30 is vertically coupled to the support 20, the head of the body cylinder 30 protrudes inward to the outer wall surface (in the case of two stages) or the piston 50 of the intermediate cylinder (40) ( The close contact part 31 which protrudes so that it may be in close contact with the outer wall of the 1st stage) is formed.
또 중간실린더(40)는 외측면 하부에 몸통실린더(30)의 내벽면과 밀착되는 밀착부(41)가 형성되어 있고, 상부 즉 헤드부는 피스톤(50)의 외벽면과 밀착되도록 돌출된 밀착부(43)가 형성되어 있다.In addition, the intermediate cylinder 40 has a close contact portion 41 which is in close contact with the inner wall surface of the body cylinder 30 is formed in the lower side of the outer surface, the upper portion, that is, the close contact portion protruding to contact the outer wall surface of the piston 50 43 is formed.
그리고 피스톤(50)은 하부가 막히고 상부는 캡(53)이 씌워져 있으며 외측면 하부에 중간실린더(40)(2단의 경우) 또는 몸통실린더(30)(1단의 경우)의 내벽과 밀착되는 밀착부(51)가 돌출형성되어 있다.And the piston 50 is clogged the lower part and the upper part is capped 53 and is in close contact with the inner wall of the intermediate cylinder 40 (in the second stage) or the body cylinder 30 (in the case of the first stage) on the lower side of the outer surface The close contact portion 51 is protruded.
특히 상술한 몸통실린더(30), 중간실린더(40)와 피스톤(50)의 밀착부(31)(41)(43)(51)에는 이들보다 강도가 약한 즉 연성의 금속피막(32)(42)(44)(52)이 입혀져 있다. 이때 금속은 동이나 신주를 이용한다.In particular, the above-described body cylinders 30, the intermediate cylinder 40 and the close contact portions 31, 41, 43, 51 of the piston 50 are weaker than these, that is, a soft metal film 32 (42). 44 and 52 are coated. At this time, the metal uses copper or new shares.
금속피막(32)(42)(44)(52)을 형성하는 방법은 몸통 및 중간실린더(30)(40)와 피스톤(50) 각각의 밀착부(31)(41)(43)(51)에 동이나 신주를 일정두께 용접하고, 이를 대응 접면되는 중간실린더(40)의 외경이나 피스톤(50)의 외경이나 몸통 및 중간실린더(30)(40)의 내경을 갖도록 선반 가공하여 마치 동이나 신주막이 입혀진 것과 같은 구조를 갖게 한다.The method of forming the metal coatings 32, 42, 44, and 52 is the close contact portions 31, 41, 43, 51 of the body and the intermediate cylinders 30, 40 and the piston 50, respectively. Welding a copper or column to a certain thickness, lathe machining to have the outer diameter of the intermediate cylinder (40) or the outer diameter or body of the piston 50 and the inner diameter of the intermediate cylinder (30, 40) to the corresponding folding Have the same structure as the membrane.
이와 같이 각 밀착부(31)(41)(43)(51)에 동이나 신주로된 금속피막(32)(42)(44)(52)이 입혀진 몸통 및 중간 실린더(30)(40)와 피스톤(50)을 조립하여 구성된 유압잭은 작동할 때 밀착부(31)(41)(43)(51)에 코팅된 연성의 금속피막(32)(42)(44)(52)이 몸통 및 중간 실린더(30)(40)의 내벽면과 중간실린더(40)와 피스톤(50)의 외벽면과 밀착되어 슬라이딩되기 때문에 종래와 같이 실린더(30)(40)의 내벽면이나 피스톤(50)의 외벽면이 긁히거나 소착되는 현상이 방지된다. 만일 유압잭에 큰 부하가 걸린 상태로 무리한 작동을 실시했다 하더라도 파손되는 부분은 밀착부(31)(41)(43)(51)에 코팅된 동이나 신주로 입혀진 금속피막(32)(42)(44)(52)이므로 이를 상술한 방법으로로 재용접 및 가공 수리하여 사용하면 된다.In this way, the body and intermediate cylinders 30 and 40 with the metal coatings 32, 42, 44, and 52 coated with copper or new column on each of the close parts 31, 41, 43, and 51 The hydraulic jack constructed by assembling the piston 50 has a soft metal coating (32) (42) (44) (52) coated on the contact portions (31) (41) (43) (51) when the body is operated. Since the inner wall surfaces of the cylinders 30 and 40 and the outer wall surfaces of the intermediate cylinder 40 and the piston 50 slide in close contact with each other, the inner wall surfaces of the cylinders 30 and 40 and the outer wall of the piston 50 as in the prior art. Scratches or sintering of the surface are prevented. Even if the hydraulic jack is subjected to excessive load under heavy load, the damaged part is covered with metal coatings 32, 42 (coated with copper or drapes coated on the close parts 31, 41, 43, and 51). 44) (52), so that it can be used by re-welding, processing and repairing in the manner described above.
이상에서 살펴 본 바와 같이 본 고안은 유압잭를 이루는 몸통실린더와 중간실린더 및 피스톤의 밀착부에 연성의 금속을 용접하고 이를 대응 접촉되는 각 실린더의 내경이나 외경 또는 피스톤의 외경의 크기로 가공하여 금속피막을 입힘으로써 작동시 각 밀착부에 형성된 금속피막이 각 몸체의 내벽 또는 외벽면과 밀착되어 슬라이딩되도록 함에 따라 큰 부하가 걸리더라도 접촉면간에 벽면을 긁거나 소착되는 현상을 방지할 수 있는 효과가 있다.As described above, the present invention welds a ductile metal to the close contact portion of a cylinder cylinder, an intermediate cylinder, and a piston forming a hydraulic jack, and processes the metal film to an inner diameter, an outer diameter, or an outer diameter of a piston corresponding to each other. By coating, the metal film formed on each close contact portion slides in close contact with the inner wall or outer wall surface of each body, thereby preventing the phenomenon of scratching or sintering the wall surface between the contact surfaces even when a large load is applied.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2002-0037898U KR200309436Y1 (en) | 2002-12-20 | 2002-12-20 | Hydraulic jack that cylinder and contact surface of piston are strengthened |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2002-0037898U KR200309436Y1 (en) | 2002-12-20 | 2002-12-20 | Hydraulic jack that cylinder and contact surface of piston are strengthened |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR200309436Y1 true KR200309436Y1 (en) | 2003-04-03 |
Family
ID=49404172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR20-2002-0037898U KR200309436Y1 (en) | 2002-12-20 | 2002-12-20 | Hydraulic jack that cylinder and contact surface of piston are strengthened |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200309436Y1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101848425B1 (en) * | 2017-05-29 | 2018-04-12 | 손형모 | Multi stage cylinder |
-
2002
- 2002-12-20 KR KR20-2002-0037898U patent/KR200309436Y1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101848425B1 (en) * | 2017-05-29 | 2018-04-12 | 손형모 | Multi stage cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100500335B1 (en) | Telescopic hydraulic hoist apparatus | |
| JPS63195473A (en) | Stripper device combining seal | |
| EP0620147A1 (en) | Hydraulic cylinder | |
| KR200309436Y1 (en) | Hydraulic jack that cylinder and contact surface of piston are strengthened | |
| EP2258953B1 (en) | Telescopic composite cylinder hydraulic hoist | |
| US6964221B2 (en) | Welded hydraulic actuator including a seal and method of manufacturing same | |
| EP2239468A1 (en) | Piston accumulator | |
| EP1421284B1 (en) | Telescopic hydraulic hoist | |
| US20160008917A1 (en) | Joined body | |
| US11255437B2 (en) | Sealing device | |
| US6637315B2 (en) | Welded hydraulic cylinder for work vehicles | |
| JP3390290B2 (en) | How to assemble the hydraulic cylinder | |
| US6694615B2 (en) | Method for manufacturing a welded hydraulic cylinder for reducing hoop stress | |
| CN209959617U (en) | Constant-speed equal-thrust two-stage hydraulic cylinder | |
| US4337692A (en) | Fluid cylinder assembly having minimized outside diameter | |
| CN103075387B (en) | 2TG-E110 × 90 hydraulic jack oil-inlet mechanism and production method thereof | |
| EP0927823B1 (en) | Ball valve with angled flow ports for a reciprocating piston pump | |
| EP0268591B1 (en) | Sealing device | |
| CN107355450A (en) | Four controllable hydraulic fluid port two-stage double acting hydraulic cylinders of a kind of sequence of movement | |
| CN214742460U (en) | Front cover of hydraulic oil cylinder | |
| GB2573274A (en) | Filter for an accumulator | |
| CN115111225A (en) | Lattice filling type lightweight additive manufacturing hydraulic cylinder | |
| JPH07144890A (en) | Double acting hydraulic jack with safety nut | |
| JPH0515603Y2 (en) | ||
| KR200354018Y1 (en) | Structure of seal hydro jack ram |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| REGI | Registration of establishment | ||
| LAPS | Lapse due to unpaid annual fee |