Single cylinder diesel engine handle start-up safety and protection device
A safety protection device and diesel engine technology, applied to the starting device with manual crank, engine starting, machine/engine, etc., can solve safety accidents, personal injury accidents, unreliable engine starting performance, and starting handles that cannot be removed in time Opening and other issues, to achieve the effect of guaranteed safety, simple and practical assembly process, and perfect appearance
Inactive Publication Date: 2009-08-26
陈万荣
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Problems solved by technology
[0003] 1. In the process of starting, there will be a large reaction force. In addition, if the staff does not operate correctly, it is easy to cause personal injury due to the reverse rotation of the starting handle. The resulting safety accidents and personal injury accidents occur from time to time. Relevant requirements of GB / T20064.1-2006, that is, no automatic release device
[0004] 2. Since the starter handle is directly connected to the engine spindle when starting, when the engine reverses, the starter handle cannot be disengaged in time, which is more likely to cause the starter handle to rotate synchronously and hurt people
[0005] 3. There is no safety protection device on the existing single-cylinder diesel engine, and the starting end of the main shaft of the engine is directly exposed, which is not only easy to cause accidents such as entanglement and injury, but also does not comply with the national regulations of "not allowing the rotating body to be exposed, there must be Mandatory new regulations for "protective cover"
[0006] 4. The opening and closing of the decompression valve is realized by the operator manually controlling the decompression switch, which does not meet the relevant requirements of GB / T20064.1-2006—that is, the single-cylinder diesel engine with a handle starting device must be equipped with a decompression valve. decompression device, the decompression device does not need to be held by hand when starting
[0007] 5. When the starting handle is disengaged from the main shaft pin, the pressure reducing valve must be closed in time, so that the engine can start successfully. Due to the poor synchronization between the manual closing of the pressure reducing valve and the disengagement of the starting handle from the main shaft pin, this often leads to repeated operations In order to make the engine start successfully, it is both troublesome and laborious, and the starting performance of the engine is not reliable.
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[0028] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0029] Such as figure 1 , figure 2 As shown, the decompression valve 4 is installed in the engine case 1, the decompression switch 4a of the decompression valve 4 protrudes outside the engine case 1, and the starting end of the engine main shaft 2 also protrudes from the engine case 1, and when it starts The end of the main shaft pin 3 passes through the radial direction, and the two ends of the main shaft pin 3 exceed the circumferential surface of the engine main shaft 2 . The protector shell 5 with an open inner end and a closed outer end is located on the outside of the engine case 1, and the edge of the open end is turned outward to form three lugs 5c with mounting holes. The lugs 5c are connected with bolts and Engine casing 1 is fixedly connected, and protector casing 5 is fastened on the engine casing 1, and the starting end of engine main shaft 2 ...
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A single-cylinder diesel engine handle starting safety protection device, two bushings are fixed on the outer wall of the protector shell, a spline shaft is installed in the upper bushing, a starting pin is installed on the outer polished rod end of the spline shaft, and a start pin is installed on the spline shaft The inner spline end extends into the protector shell, and the spring, the pressure reducing device controller and the starting plate are installed in sequence; the outer end of the pressure reducing device controller protrudes from the through hole on the protector shell, and one end of the pull wire is fixed on the reducer. On the pressure device controller, the other end is connected to the pressure reducing switch of the pressure reducing valve; a shift fork shaft is pierced in the lower shaft sleeve, and a return spring is installed between the start button at the outer end of the shift fork shaft and the outer end surface of the lower shaft sleeve. The inner end of the fork shaft is fixedly connected with the shank of the shift fork, and the fork of the shift fork is located in the shift fork groove on the circumferential surface of the starter disc. The invention does not produce reaction force and reverse rotation during the manual cranking process, fundamentally solves the safety hazards of single-cylinder diesel engine handle cranking, and has the characteristics of easy implementation, reliable performance, quick operation and strong versatility.
Description
technical field [0001] The invention belongs to the technical field of single-cylinder diesel engines, and in particular relates to a safety protection device for handle starting of single-cylinder diesel engines. Background technique [0002] At present, the way to start a single-cylinder diesel engine is to use a rocker handle to start manually. That is, the pressure reducing valve is installed in the engine casing, and the starting end of the engine main shaft stretches out from the engine casing, and the end of the starting end is radially worn with a main shaft pin. When starting, insert the starting handle into the main shaft pin, pull the pressure reducing switch handle of the pressure reducing valve by hand to open and hold the pressure reducing valve, then shake the starting handle by hand to drive the engine main shaft to rotate through the main shaft pin; When the rotational speed of the main shaft of the engine was greater than the rotational speed of the starte...
Claims
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IPC IPC(8): F02N1/02
Inventor陈万荣
Owner陈万荣