KR200142602Y1 - Hydraulic circuit of automatic tailgate opening/shutting device for dump truck - Google Patents
Hydraulic circuit of automatic tailgate opening/shutting device for dump truck Download PDFInfo
- Publication number
- KR200142602Y1 KR200142602Y1 KR2019940023235U KR19940023235U KR200142602Y1 KR 200142602 Y1 KR200142602 Y1 KR 200142602Y1 KR 2019940023235 U KR2019940023235 U KR 2019940023235U KR 19940023235 U KR19940023235 U KR 19940023235U KR 200142602 Y1 KR200142602 Y1 KR 200142602Y1
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- Prior art keywords
- rear door
- opening
- closing
- valve
- dump truck
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/04—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
- B60P1/26—Means for controlling movement of tailboards or sideboards
- B60P1/267—Controlling degree of tailboard or sideboard movement in dependence upon degree of tipping movement, e.g. by linkage or cam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/10—Road Vehicles
- B60Y2200/14—Trucks; Load vehicles, Busses
- B60Y2200/142—Heavy duty trucks
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
본 고안은 본 출원인의 실용신안등록출원제 93-6702호 덤프트럭의 후방문 자동개폐장치에 관련되는 것으로 더욱 구체적으로는 덤프트럭의 후방문을 자동개폐함에 있어 운전실에 조작에 필요한 별도의 장치없이 자동으로 제어되어 동작되게 하는 덤프트럭의 후방문 자동개폐장치에 사용되는 유압회로도에 관한 고안이다.The present invention relates to the automatic door opening and closing device of the dump truck of Utility Model Registration Application No. 93-6702 of the present applicant. More specifically, in the automatic opening and closing of the rear door of the dump truck, there is no additional device necessary for operation in the cab. The invention relates to a hydraulic circuit diagram used in a rear door automatic opening and closing device of a dump truck to be controlled and operated automatically.
종래 선출원한 고안은 덤프트럭의 후방문 개폐장치의 축지부를 하부에 설치하여 유압실린더의 작동으로 후방문이 개폐될 수 있도록 하므로서 대형암석등의 운반작업을 매우 능률적이고 안전하게 할 수 있으며, 하역작업중 후방문의 충격에 의해 발생하는 소음공해를 효과적으로 방지할 수 있도록 안출한 고안이다.The conventionally-developed design allows the rear door to be opened and closed by the operation of the hydraulic cylinder by installing the axial part of the rear door opening and closing device of the dump truck, which makes the transportation work of large rocks, etc. very efficient and safe, It is designed to effectively prevent the noise pollution caused by the impact of the rear door.
본 고안은 이와같은 후방문의 자동개폐작동을 유압회로에 의거 자동으로 제어하므로서 매우 편리하게 한 고안이다The present invention is a very convenient design by automatically controlling the opening and closing operation of the rear door based on the hydraulic circuit.
Description
본 고안은 본출원인의 실용신안등록출원 제 93-6702호 덤프트럭의 후방문 자동개폐장치에 관련되는 것으로 더욱 구체적으로는 덤프트럭의 후방문을 자동개폐함에 있어 운전실에서 조작에 필요한 별도의 장치없이 자동으로 제어되어 동작되게하는 덤프트럭의 후방문 자동개폐장치에 사용되는 유압회로도에 관한 고안이다.The present invention relates to the automatic door opening and closing device of the dump truck of Utility Model Registration No. 93-6702 of the present applicant, and more specifically, to automatically open and close the rear door of the dump truck, without a separate device required for operation in the cab. The invention relates to a hydraulic circuit diagram used in a rear door automatic opening and closing device of a dump truck to be controlled and operated automatically.
종래 선출원한 고안은 덤프트럭의 후방문 개폐장치의 축지부를 하부에 설치하여 유압실린더의 작동으로 후방문이 개폐될 수 있도록 하므로서 대형암석등의 운반작업을 매우 능률적이고 안전하게 할 수 있으며, 하역작업중 후방문의 충격에 의해 발생하는 소음공해를 효과적으로 방지 할 수 있도록 안출한 고안이다.The conventionally-developed design allows the rear door to be opened and closed by the operation of the hydraulic cylinder by installing the axial part of the rear door opening and closing device of the dump truck, which makes the transportation work of large rocks, etc. very efficient and safe, and during the unloading operation. It is designed to effectively prevent the noise pollution caused by the impact of the rear door.
본 고안은 이와같은 후방문의 자동개폐작동을 유압회로에 의거 자동으로 제어하므로서 매우 편리하게 한 것인데, 이를 첨부도면에 의거 상술하면 다음과 같다.The present invention is very convenient by controlling the automatic opening and closing operation of the rear door based on the hydraulic circuit, which will be described in detail according to the accompanying drawings.
제 1도는 본 고안의 회로도1 is a circuit diagram of the present invention
제 2도는 본 고안의 실시예 회로도2 is a circuit diagram of an embodiment of the present invention.
제 3도는 적재함의 하강상태도3 is the lowered state of the loading box
제 4도는 적재함의 상승상태도4 is a rising state of the loading box
* 도면의 주요 부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings
a : 유압펌프 b : 릴리프밸브a: Hydraulic pump b: Relief valve
c : 적재함승강밸브 d : 덤프실린더c: Loading container lift valve d: Dump cylinder
e : 후방문 1 : 시이퀸스밸브e: rear door 1: sequence valve
2 : 첵크밸브 3 : 스톱밸브2: check valve 3: stop valve
4 : 전환밸브 4' : 개폐로4: switching valve 4 ': opening and closing
5 : 파일럿첵크밸브 6 : 후방문개폐실린더5: Pilot check valve 6: Rear door open cylinder
7 : 적재함 8 : 누름간7: Stacking box 8: Push
가 : 후방문자동개폐제어회로A: Rear door automatic opening and closing control circuit
유압펌프(a)에 릴리프밸브(b) 및 적재함승강밸브(c), 그리고 덤프실린더(d)를 연결하여서되는 후방문(e)의 자동개폐장치에 있어서 적재함 승강밸브(c)에 직열로 연결한 시이퀸스밸브(1)와의 사이에 첵크밸브(2)와 스톱밸브(3)를 매개로 개폐로드(4')를 가진 전환밸브(4) 및 파일럿 첵크밸브(5) 그리고, 후방문개폐실린더(6)를 병열로 연결시킨 후방문자동개폐 제어회로(가)를 연결시켜서 됨을 특징으로 하는 것이다.In the automatic opening and closing device of the rear door (e) by connecting the relief valve (b), the loading box elevating valve (c) and the dump cylinder (d) to the hydraulic pump (a), it is connected in series with the loading box elevating valve (c). A switching valve (4) and a pilot check valve (5) having an opening / closing rod (4 ') via a check valve (2) and a stop valve (3) between a sequence valve (1) and a rear door closing cylinder. (6) is characterized in that by connecting the rear door automatic opening and closing control circuit (A) connected in parallel.
도면중 미설명부로 7은 적재함이고, 8은 전환밸브(4ㅒ의 개폐로드(4')를 가압하는 적재함(7)의 누름간이다.In the figure, 7 is a loading box, and 8 is a pressing period of the loading container 7 which presses the switching valve 4 'of the open / close rod 4'.
이와같이된 본 고안에 있어 구성요소별 기능을 설명하면 유압펌프(a)는 운전자가 스윗치나 레버의 조작으로 엔진동력이 연결 또는 차단되며 적재함(7)과 후방문(e)의 동작에 필요한 오일을 토출하고, 릴리프밸브(b)는 회로내의 최고압력을 한정하여 유압기기의 안전을 유지하며 적재함 승강밸브(c)는 운전자가 운전석에서 적재함(7)과 후방문(e)의 동작을 필요에 따라 조작하는 밸브이고 덤프실린더(d)는 적재함(7)을 상승시키기 위해 필요한 기계적 유압을 발생하는 기능을 하게 된다.When explaining the function of each component in the present invention as described above, the hydraulic pump (a) is connected to the engine power by the operation of the switch or lever, or shut off the oil and the oil required for the operation of the stacking box (7) and the rear door (e) Discharge, the relief valve (b) limits the maximum pressure in the circuit to maintain the safety of the hydraulic equipment, and the loading box lifting valve (c) the driver loads from the driver's seat (7) and the rear door (e) as necessary It is a valve to operate and the dump cylinder (d) is to function to generate the mechanical hydraulic pressure required to raise the loading box (7).
그리고, 후방문 자동개폐 제어회로(가)의 시이퀸스밸브(1)는 후방문(e)을 열고 닫을 때 필요한 오일의 압력을 설정하여 후방문 개폐동작이 우선하도록 유압류의 방향을 제어하고, 첵크밸브(2)는 파일럿 회로의 압력을 유지하여 유압펌프(a)의 연속부하를 방지하며 스톱밸브(3)는 수동조작밸브로서 전환밸브(4)의 작동을 일시 중단 할 필요가 있을 경우 예를 들어 적재함 후방문의 개폐위치를 필요한 위치에서 고정하고자 할 경우 등에 수동으로 유로를 차단하는 기능으로만 사용하고 보통때에는 항상 개방상태에 두게 된다.Then, the sequence valve 1 of the rear door automatic opening and closing control circuit (a) sets the pressure of the oil required to open and close the rear door (e) to control the direction of the hydraulic flow so that the rear door opening and closing operation takes precedence, The check valve (2) maintains the pressure in the pilot circuit to prevent the continuous load of the hydraulic pump (a), and the stop valve (3) is a manual control valve that needs to temporarily suspend the operation of the switching valve (4). For example, if you want to fix the opening and closing position of the rear door of the loading box to the required position, use only as a function to manually block the flow path, and normally it is always left open.
또한, 전환밸브(4)는 적재함(7)의 하방에 설치되어 내부의 스프링으로 탄력설치된 개폐로드(4')의 승강작동으로 유압흐름의 방향을 전환하도록 된 것으로서 적재함(7)이 하강된 상태에서는 적재함(7)의 누름간(8)에 의해 개폐로드(4')가 하강되어 후방문개폐실린더(6)를 오프시키고 적재함(7)이 상승되면 개폐로드(4')가 스프링의 복귀탄발력으로 상승되어 유압흐름의 방향을 전환하므로서 후방문개폐실린더(6)를 작동시키도록 되어 있으며 필요시 레버를 이용하여 수동으로 전환할 수 있도록 구성되어 있다. 또한 파일럿첵크밸브(5)는 후방문(e)이 펌프토출압에 의한 동작이 아닌 물질적힘의 영향을 받아 위치변화를 가져오게 하는 것을 방지하고 후방문개폐실린더(6)는 적재함(7)의 틸팅에 따른 전환밸브(4)의 개폐로드(4')의 승강작동으로 적재함(7)의 후방문(e)을 열고 닫을때 필요한 기계적 힘을 발생시키는 기능을 하게 된다.In addition, the switching valve (4) is installed under the loading box (7) to change the direction of the hydraulic flow by the lifting operation of the opening and closing rod (4 ') elastically installed by the spring inside the loading box (7) is in a lowered state When the opening and closing rod 4 'is lowered by the pushing section 8 of the loading box 7, the rear door opening and closing cylinder 6 is turned off, and when the loading box 7 is raised, the opening and closing rod 4' is returned to the spring. The rear door opening and closing cylinder (6) is operated by changing the direction of the hydraulic flow by rising force, and is configured to be manually switched using a lever when necessary. In addition, the pilot check valve (5) prevents the rear door (e) from bringing the position change under the influence of the material force, not the operation by the pump discharge pressure and the rear door opening and closing cylinder (6) of the loading (7) By the lifting operation of the opening and closing rod (4 ') of the switching valve (4) according to the tilting function to generate the mechanical force required to open and close the rear door (e) of the loading box (7).
이와같은 본 고안의 작용을 설명함에 있어 먼저 적재함(7)의 상승 및 후방문(e)의 열림동작을 설명하면 운전자가 덤프트럭의 적재함(7)의 적재된 적재물을 하역하기 위하여 유압펌프(a)에 동력을 연결한 후 토출되는 오일의 방향을 적재함승강밸브(c)를 제어했을때 오일은 첵크밸브(2)를 통과하게 되는데, 이때 이미 후방문(e)은 닫혀 있으므로 파일럿 압력이 형성되어 시이퀸스밸브(1)가 개방됨에 따라 덤프실린더(d)의 피스톤을 로드쪽으로 밀어서 적재함(7)이 상승하게되고 이와 동시에 적재함(7)의 누름간(8)에 의해 가압된 전환밸브(4)의 개폐로드(4')가 누름간(8)의 가압력해지로서 내부의 스프링에 의한 복귀탄발력으로 상승되어 유압의 흐름을 전환하므로서 후방문개폐실린더(6)를 작동시켜 피스톤로드를 실린더의 내부로 몰입시키게 되므로 후방문(e)이 열리게 시작한다.In describing the operation of the present invention, first, when the lift box 7 and the opening operation of the rear door e are described, the driver may unload the loaded load of the stacker 7 of the dump truck. After the power is connected, the oil flows through the check valve (2) when the lift valve (c) is controlled. At this time, since the rear door (e) is closed, the pilot pressure is formed. As the sequence valve 1 is opened, the piston of the dump cylinder d is pushed toward the rod, and the loading box 7 is raised, and at the same time, the switching valve 4 pressurized by the push rod 8 of the loading container 7. Of the opening / closing rod 4 'is released by the pressing force of the presser 8, and the hydraulic spring flows upward to switch the flow of hydraulic pressure. Will be immersed in the rear door (e) Start Liege.
이와같은 작동으로 후방문(e)의 열림이 완료되면 회로내의 오일은 시이퀸스밸브(1)를 통과하게되므로 적재함(7)의 상승작동이 다시 진행되어 완료된다.When the opening of the rear door (e) is completed by this operation, the oil in the circuit passes through the sequence valve (1), so that the ascending operation of the stacking box (7) is completed again.
이어서, 운전자가 적재물의 하역이 끝난 후 적재함(7)을 본래의 위치에 하강시키기 위해 적재함승강밸브(c)를 제어하면 적재함(7)이 자중에 의해 하강하게 되고 적재함 하강이 완료되면 이와 동시에 적재함의 누름간(8)이 전환밸브(4)의 개폐로드(4')를 가압하여 전환밸브(4)를 제어하게 되므로 유압의 작동방향이 다시 전환되며, 이때 운전자가 적재함승강밸브(c)를 다시 제어하면 후방문개폐실린더(6)의 피스톤로드가 밖으로 인출되어 후방문이 자동으로 닫히게 되는 것이다.Subsequently, if the driver controls the loading box elevating valve (c) to lower the loading box 7 to its original position after the loading of the loading is finished, the loading box 7 is lowered by its own weight and at the same time when the loading box lowering is completed The pressurizing section 8 presses the opening / closing rod 4 'of the selector valve 4 to control the selector valve 4 so that the operating direction of the hydraulic pressure is switched again. When the control again, the piston rod of the rear door opening / closing cylinder (6) is pulled out so that the rear door is automatically closed.
본 고안의 회로도에서 제 1도와 제 2도는 자동개폐제어회로(가)의 연결위치를 다르게 하여 나타낸 것으로서 제 1도와 같이 자동개폐제어회로(가)를 덤프실린더(d)와 적재함승강밸브(c)의 사이에 연결시킨 회로는 기출고된 차량에 부착이 용이하고, 제 2도와 같이 자동개폐제어회로(가)을 유압펌프(a)와 적재함승강밸브(c)의 사이에 연결한 회로는 기출고된 차량에는 장착이 곤란하고 차량제작시 설치하면 기능이 매우 편리하게 되는 회로의 구성이다.In the circuit diagram of the present invention, Fig. 1 and Fig. 2 show the connection position of the automatic opening and closing control circuit (a) differently, and the automatic opening and closing control circuit (a) is shown in FIG. The circuit connected between is easy to attach to the previously shipped vehicle, and the circuit connecting the automatic opening / closing control circuit (A) between the hydraulic pump (a) and the loading / lifting valve (c) as shown in FIG. It is a configuration of a circuit that is difficult to install in a vehicle that has been installed and that its function becomes very convenient when it is installed during vehicle production.
이와같이 본 고안은 후방문(e)을 자동개폐제어회로(가)에 의해 적재함의 상승과 하강에 따라 자동개폐하므로 운전석에서 아무런 조작없이 자동으로 제어할 수 있어 매우 편리하고 취급이 용이한 우수한 고안이다.As such, the present invention automatically opens and closes the rear door (e) according to the rising and falling of the loading box by the automatic opening / closing control circuit, so that it can be automatically controlled without any manipulation from the driver's seat, which is very convenient and easy to handle. .
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019940023235U KR200142602Y1 (en) | 1994-09-06 | 1994-09-06 | Hydraulic circuit of automatic tailgate opening/shutting device for dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019940023235U KR200142602Y1 (en) | 1994-09-06 | 1994-09-06 | Hydraulic circuit of automatic tailgate opening/shutting device for dump truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR960011544U KR960011544U (en) | 1996-04-15 |
| KR200142602Y1 true KR200142602Y1 (en) | 1999-06-01 |
Family
ID=19392761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019940023235U KR200142602Y1 (en) | 1994-09-06 | 1994-09-06 | Hydraulic circuit of automatic tailgate opening/shutting device for dump truck |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200142602Y1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11498469B2 (en) * | 2018-12-31 | 2022-11-15 | Antitip, Llc | Tip over prevention for dumping vehicles |
-
1994
- 1994-09-06 KR KR2019940023235U patent/KR200142602Y1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11498469B2 (en) * | 2018-12-31 | 2022-11-15 | Antitip, Llc | Tip over prevention for dumping vehicles |
Also Published As
| Publication number | Publication date |
|---|---|
| KR960011544U (en) | 1996-04-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 20030114 Year of fee payment: 5 |
|
| LAPS | Lapse due to unpaid annual fee |