KR830001011Y1 - Forced lubrication device for gorod end of engine - Google Patents

Abstract

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Description

Forced lubrication device for gorod end of engine

The drawing shows an embodiment of the present invention

1 is a front view of a transverse water-cooled diesel engine.

2 is a cross-sectional plan view showing a forced lubrication device.

3 is a cross-sectional view taken along line (III)-(III) of FIG. 2.

According to the present invention, a part of the flow path is placed on one side of the crankcase in the lubricating oil passage in the lubricating oil passage of the forced lubricator in the engine rod end of the engine. It is an object of the present invention to provide a simple, lightweight, and small size of the transverse flow passage with respect to the basic structure which is crossed from one side to the other side of the crankcase.

Conventionally, the forced lubrication device employing the basic structure described above cranks the lubricating oil path to send the lubricating oil boosted by the lubricating oil pump disposed on one side of the crankcase to the lubricating oil inlet at the gorod end located on the other side of the crankcase. Since it penetrated in the columnar boss part formed in the state which crossed the crankcase, etc. in the bottom wall of a case, it had the following faults.

1) A cylindrical boss part must be formed on the wall of the crankcase to form a flow path section crossing the crankcase. For this reason, the shape of the crankcase becomes as complicated as that part, and the work of casting becomes difficult.

2) The appearance of the crankcase is increased by the portion of the columnar boss portion protruding from the outer surface of the crankcase wall, and the entire engine is enlarged.

3) The crankcase becomes heavy as much as the part of the crankcase that becomes the columnar boss part.

4) The large and heavy crankcase must be handled when drilling holes in transverse flow paths in the cylindrical wall of the boss section, which is not only labor-intensive and time-consuming, but also fatigue and inefficient.

5) Since the lubrication system of the cam shaft moving the valve must be formed separately from the lubrication system at the end of the gorod, the whole lubrication system is complicated, so the entire length is long, which is inefficient in terms of labor and time when processing with augers. .

The present invention eliminates these drawbacks (1) to (5) to form the engine lightly and compactly, and supplies lubricant to the lubricating oil inlet at the end of the gondrod located on the other side of the crankcase across the crankcase. In order to easily form a lubrication flow path, a transverse flow path (fifth flow path) is formed in the camshaft which moves the valve located parallel to the crankshaft so that the lubrication flow path can be easily formed. And, it is characterized in that the pumping oil is fed to the fly wheel via the yellow end flow path. In addition, in the present invention, in order to supply lubricant to the lubricating oil inlet from the lubricating oil pump disposed on one side of the crankcase to the end of the gondrod located on the other side of the crankcase, the lubricating oil passage is placed in the longitudinal direction in the cam shaft that pushes the valve. Since it was driven, the following effects were obtained.

A) It is not necessary to form a columnar boss portion on the wall of the crankcase to form a transverse flow path, and the shape of the crankcase can be simplified as much as the portion of the columnar boss portion is omitted, and the work such as casting is also easy.

B) Since it is not necessary to form a columnar boss portion on the crankcase wall, the wall surface of the crankcase does not protrude outwards, and the outer shape of the crankcase becomes small.

C) Since it is not necessary to form a columnar boss in order to form a transverse flow path in the crankcase wall, it is as light as a part of the boss wall.

D) The transverse flow passage is installed through the camshaft which moves the valve, so that the drilling process can be easily and quickly performed to form the transverse flow hole, and the work efficiency can be improved.

E) The part of the lubricating oil is used as lubricating oil to lubricate the camshaft moving the valve to lubricate the end of the gorod, simplifying the structure of the lubricating oil which is formed on the crankcase and the length of the lubricating oil. The lubricating oil path to the lubricating oil path and the lubricating oil path of the camshaft for moving the valve can be made shorter than the conventional one, and the capacity of the lubricating oil pump can be reduced.

As a result, not only the entire engine can be miniaturized, but also the work time required for drilling a hole into an awl to form a lubrication flow path is shortened.

F) Since the yellow end flow path formed on the camshaft is connected to the valve operation part lubrication flow path, the lubrication flow path of the valve operation part is also connected to the transverse flow path. Since the lubricating oil path for operating the valve acts as a lubrication of the idle gear shaft, the configuration of the lubrication system as a whole can be simplified.

Next, an embodiment of the present invention will be described with reference to the drawings.

In the drawing, reference numeral 1 denotes a crankcase, and a cylinder and a water jacket 3 are formed in the right half crank chamber 2 and the left half, and the left block 4 includes a hyde block 4, The gear case 5 is fixed to the front side, and the radiator 6 and the fuel tank 7 are supported on left and right sides thereof.

The crankshaft 8 and the camshaft 9 which moves a valve in the lower left vicinity are arrange | positioned back and forth in the running state at the center part in the crank chamber 2. The camshaft 9 which moves the valve through the bowl bearing 10 with the crankshaft 8 through the front and back both side walls 1a, 1b of the crankgauge 1 is rotated directly.

The large end 13 of the gorod 12 is wound around the crank pin 11 of the crankshaft 8 in a rotatable manner, and the lubricating oil contained in the bottom part of the crankcase 1 between the fitting surfaces 14 It is pumped through the filter 15, the 1st flow path 16, the lubrication pump 17, and each flow path 18-23 of 2nd-7th. The seventh flow path 23 is formed in the crankshaft 8.

The sixth flow path 22 is formed in the bearing pressing cover 24, which is fixed to the outer surface of the rear wall 1b of the crankcase 1.

The connection portion 25 between the sixth flow passage 22 and the seventh flow passage 23 is located on the rear wall 1b side of the crankcase 1.

On the other hand, the lubrication pump 17 is built in the vicinity of the lower left side of the front wall of the gear case 5 from the front wall 1a of the crankcase 1. The filter 15 is fixed to the gear case 5 and inserted into the lower part of the crank chamber 2.

The first passage 16 and the second passage 18 are formed in the front wall of the gear case 5. The third passage 19 penetrates back and forth within the idle gear shaft 26.

Since the idle gear shaft 26 was hypothesized and attached to maintain the sealing state between the front walls of the gear case 5 and the crankcase 1, the idle gears 27 and 28 are rotatably held.

The fourth flow path 20 is formed in the front wall 1a of the crankcase 1.

The fifth flow passage 21 travels longitudinally in the camshaft 9 that moves the valve. It communicates with the peripheral groove | channel 29 and the cross hole 30 of the 4th flow path 20 which is a valve operation part lubrication flow path, and the 5th flow path 21 which is a transverse flow path.

Peripheral groove 29 and the cross hole 30 is formed by the journal (9a) of the front end of the cam shaft (9) for moving the valve. Thereby, a part of the lubricating oil lubricates the edge 9a via the peripheral groove 29.

The fifth flow passage 21 and the sixth flow passage 22 communicate with each other through the oil chamber 31 and the oil hole 32, and the oil chamber is formed in contact with the rear end surface of the cam shaft that moves the valve. Thereby, the journal 9a of the rear end of the camshaft 9 which moves a valve is lubricated as a part of lubricating oil through the oil chamber 31. As shown in FIG.

In the central portion of the idle gear shaft 26, the oil hole 33 is drilled in a cross section crossing the third passage 19 so that a part of the lubricating oil passing through the third passage 19 passes through the idle hole 33. Lubricate the boss hole at (28). The lubricating oil passage 35 of the valve arm 34 is formed in the head block 4, and the start end of the flow passage 35 is connected to the end of the fourth flow passage 20.

The second passage 18 is connected with a safety valve 36 and a hydraulic pressure case (37).

The rear end of the crankshaft 8 protrudes out of the rear wall 1b of the crankcase 1 to which the flywheel 38 is fixed. The drive pliers 40 of the writer 39 are fixed to the front face of the flywheel 38.

The pulley 40 is made of sheet metal, and is formed in a shape that is deeply recessed in the front face thereof, and the pressing cover 24 which has been electricly inserted into the recess space enters in a non-contact state. The oil hole 32 connecting the fifth flow passage 21 and the sixth flow passage 22 is formed at a position inclined toward the crank shaft 8 rather than the cam shaft 9 moving the valve. As a result, the pulley 40 can be deeply enclosed in the pressing cover 24 so that the flywheel 38 can be brought close to the crankcase 1, and the size of the engine can be made smaller, and the flywheel ( The warp of the crankshaft 8 by 38) can be reduced.

Reference numeral 41 in the figure denotes a two-axis rotary balancer for clarifying the vibration of the engine, and is incorporated in the right end portion of the crank chamber 2. Reference numeral 42 denotes a fuel injection pump, 43 denotes a governor device, and these are embedded in the left half of the gear case 5. 44 is a fuel injection camshaft, is integrally formed with the camshaft 9 which moves a valve, and is connected with the shaft 45 of the pump 17. As shown in FIG.

The gear transmission is built into the gear case 5. The camshaft 9, the fuel injection camshaft 44, and the pump 17, which move the valve, are driven by opening the crank gear 46, the idle gear 27, 28, and the cam gear 47 as the crank shaft 8. do.

The balancer device 41 is driven by opening the idle gears 27 and 28 and the balancer gears 48 and 49 and 50 on the crankshaft 46. Reference numeral 51 denotes a governor and 52 denotes a governor gear.

As a modification of the above-described embodiment, it is considered to be preferable to change a part thereof as follows.

A) Idle gears 27 and 28 are fixed to the idle gear shaft 26, and the idle gear shaft 26 is rotatably held between the crank gauge 1 and the front walls of the gear case 5; The gap between the ends of the wells is sealed and sealed with a mechanical seal.

B) The bowl bearing 10 which detects both ends of the crankshaft 8 is replaced with the bearing or the sliding bearing by the cylindrical roller.

Claims (1)

Supporting the crankshaft 8 by opening the bowl bearing 10 in the crankcase 1, and disposing the gear case 5 on one axis of the crankcase and the flywheel 38 on the other side, On the gear case side, a lubrication pump 17 is arranged to guide the lubricant supplied from the lubricating oil pump to the wall on the flywheel side of the crankcase, from the wall to the seventh flow path 23 of the crank pin 11 in the crankshaft. In the horizontal engine configured to be fed, the second flow path 18 disposed on the gear case described above and the fourth flow path 20 placed on the gear case fixing side wall of the crankcase are disposed between the crankcase and the gear case. The fifth flow passage communicating with the third flow passage 19 formed in the idle idle gear shaft 26 and traversing toward the flywheel toward the gear case of the crankcase in the cam shaft 9 accumulated between both front and rear walls of the crankcase ( Forming 21) Forced lubrication device-end portion of the Con. Rod engine, characterized in that the communication which is the fifth Euro in the fifth passage.