JPH0583305U - Lubricating oil supply device for internal combustion engine - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a lubricating oil supply device that allows easy adjustment work when adjusting the stroke of each plunger collectively. [Structure] Plunger 6 for pumping lubricating oil and eccentric shaft portion
A support shaft 12 having 13 and an operation lever 14 fitted on the eccentric shaft portion 13 and swingable in the reciprocating direction of the plunger 6 are provided.
One end of the operating lever 14 is brought into contact with the base end of the plunger 6, and the other end is brought into contact with and separated from the tip of the adjusting bolt 15,
A cylinder device 25 for rotating the support shaft 12 is provided. By remotely operating the cylinder device 25, the support shaft 12 rotates and the eccentric shaft portion 13 is displaced, and the distance from the eccentric shaft portion 13 to the tip of the adjustment bolt 15 and the eccentric shaft portion 13 to the plunger 6 base end. Since the distance of the plunger changes, the swing amount of one end of the operating lever 14 changes, and the stroke of the plunger 6 can be adjusted.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lubricating oil supply device used when supplying lubricating oil to an internal combustion engine such as a ship.

[0002]

[Prior Art]

 Conventionally, this type of lubricating oil supply device is shown in FIGS. 6 and 7. That is, the oil case 50 is provided with a plurality of left and right plungers 52 that reciprocate in the cylinder 51 to pump the lubricating oil in the oil case 50 to the internal combustion engine side. These plungers 52 are biased in the suction direction by a coil spring 53.

Between both side plates 54 of the oil case 50, a support shaft 56 which is rotatable about a rotation shaft 55 in the left-right direction is provided. The support shaft 56 has a rotation shaft 55. An eccentric shaft portion 57 is formed so as to be eccentric. Reference numeral 58 denotes an operating lever provided for each plunger 52. The central portion of these operating levers 58 is externally fitted to the eccentric shaft portion 57, and both ends thereof are swingable in the reciprocating direction of the plunger 52. The front surfaces of the one ends 58a of the operating levers 58 are in contact with the base ends of the plungers 52. Further, the other end portion 58b of the operating lever 58 can freely come into contact with and separate from the tip of an adjusting bolt 61 for adjusting the swing amount of each operating lever 58. That is, these adjusting bolts 61 are provided on the oil case 50, and the amount of swing of the operating lever 58 can be changed by rotating each adjusting bolt 61 to change the amount of protrusion in the direction of the operating lever 58.

A cam shaft 63 that is rotatable around a horizontal axis 62 is provided on the proximal end side of the plunger 52, and both ends of the cam shaft 63 project outward from the left and right side plates 54. .. A drive device (not shown) for rotationally driving the cam shaft 63 is provided at one end of the cam shaft 63.

The cam shaft 63 is provided with a cam body 64 that can come into contact with and separate from the rear surface of the one end 58 a of each actuating lever 58. These cam bodies 64 intermittently move the plunger 52 in the discharge direction via the one end portion 58a of the operating lever 58.

One end of the support shaft 56 projects outward from the one side plate 54, and a manual handle 65 is attached to one end thereof. According to this, by rotating the cam shaft 63, the cam body 64 rotates. When the cam body 64 contacts the one end portion 58a of the operating lever 58, the cam body 64 pushes the plunger 52 in the discharge direction B (forward) through the one end portion 58a, so that the oil in the cylinder 51 is not Is ejected. Further, when the cam body 64 separates from the one end portion 58a of the operating lever 58, the plunger 52 is pushed back in the suction direction (backward) by the biasing force of the coil spring 53, so that the oil in the oil case 50 is stored in the cylinder 51. Inhaled into. As a result, the oil in the oil case 50 is pumped to the internal combustion engine side by an amount corresponding to the stroke of the plunger 52.

In order to adjust the stroke of each plunger 52 separately, each adjustment bolt 61 may be rotated to change the protrusion amount C toward the operating lever 58. That is, if the amount of protrusion C is increased, the swing amount of the actuating lever 58 is reduced, so that the stroke of the plunger 52 is reduced and the amount of lubricating oil pumped can be reduced. Similarly, if the protrusion amount c is reduced, the swing amount of the operating lever 58 increases, so that the stroke of the plunger 52 increases and the amount of oil pumped can be increased.

Further, in order to collectively adjust the stroke of each plunger 52, the support shaft 56 is rotated around the rotation shaft center 55 by rotating the manual handle 65, so that the eccentric shaft portion 57 is rotated. Is displaced in the vertical direction. That is, when the eccentric shaft portion 57 is displaced upward, the actuating lever 58 is displaced upward, and the distance from the shaft center 66 of the eccentric shaft portion 57 to the tip of the adjusting bolt 61 is shortened, and the eccentric shaft portion 57 is displaced. Since the distance from the shaft center 66 to the proximal end of the plunger 52 becomes long, the swing amount of the one end portion 58a of the operating lever 58 increases, and the stroke of the plunger 52 increases. When the eccentric shaft portion 57 is displaced downward, the operating lever 58 is displaced downward, and the distance from the shaft center 66 of the eccentric shaft portion 57 to the tip of the adjusting bolt 61 becomes long, and at the same time, the eccentric shaft portion 57 Since the distance from the shaft center 66 of 57 to the proximal end of the plunger 52 is shortened, the swing amount of the one end 58a of the actuating lever 58 is reduced, and the stroke of the plunger 52 is reduced.

[0009]

[Problems to be solved by the device]

 However, according to the conventional type described above, when adjusting the stroke of each plunger 52 in a lump, the operator has to go to the installation location of the lubricating oil supply device and operate the manual handle 65, which is troublesome. There was a problem that it took time. In particular, when the load changes drastically during operation of the internal combustion engine, the manual handle 65 must be operated frequently, but this is very troublesome, and the operator often neglects to operate the manual handle 65 and This caused the life of the engine to be shortened.

The present invention solves the above problems, and an object of the present invention is to provide a lubricating oil supply device that facilitates the adjustment work when adjusting the stroke of each plunger collectively.

[0011]

[Means for Solving the Problems]

 A lubricating oil supply device for an internal combustion engine according to the present invention comprises a plunger for reciprocating in a cylinder to pump the lubricating oil to the internal combustion engine side, an operating device for actuating the plunger, and a rotation device. A support shaft rotatable about the shaft center is provided, and an eccentric shaft portion eccentric from the rotation shaft center is formed on the support shaft. The center portion is externally fitted to the eccentric shaft portion and both end portions are plungers. Is equipped with an actuating lever that can be swung in the reciprocating direction, and one end of this actuating lever is brought into contact with the proximal end of the plunger, and the tip is brought into contact with the other end of the operating lever to adjust the amount of swing of the operating lever. The adjusting device is provided, and the rotation drive device for rotating the supporting shaft is provided.

[0012]

[Action]

 With the above configuration, the plunger is operated by operating the operating device to pump the lubricating oil to the internal combustion engine side. At this time, the operating lever swings as the plunger reciprocates. The swing amount of the actuating lever is adjusted to a predetermined amount by the other end of the actuating lever contacting the tip of the adjuster, so that the one end of the actuating lever reciprocates according to the swing amount of the actuating lever. Regulate the amount. As a result, the plunger reciprocates with a predetermined stroke.

By rotating the rotation drive device, the support shaft rotates about the rotation axis, and the eccentric shaft portion is displaced. As a result, the actuating lever is displaced, and the distance from the eccentric shaft portion to the tip of the adjuster and the distance from the eccentric shaft portion to the plunger base end change. That is, if the distance from the eccentric shaft to the tip of the adjuster becomes shorter and the distance from the eccentric shaft to the base end of the plunger becomes longer, the amount of swing of one end of the operating lever increases, so the stroke of the plunger Will grow. In addition, if the distance from the eccentric shaft to the tip of the adjuster becomes long and the distance from the eccentric shaft to the plunger base becomes short, the amount of rocking at one end of the actuating lever becomes small, so the plunger stroke Becomes smaller. In this way, the stroke of the plunger can be easily adjusted by rotating the rotation drive device.

[0014]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. As shown in FIGS. 1 and 2, an oil case 1 is provided as an example of the main body of the lubricating oil supply device, and a plurality of indicators 2 for confirming the oil flow are provided in front of the oil case 1. It is arranged in the left-right direction. An intake port 3 communicating with the oil case 1 is formed at the lower end of each of the indicators 2, and a discharge port 4 connected to the internal combustion engine side is formed at the upper end of the indicator 2.

In each of the indicators 2, a plunger 6 is provided in the oil case 1 that reciprocates in the cylinder 5 to pump the lubricating oil in the oil case 1 from the suction port 3 to the discharge port 4. Has been. These plungers 6 are biased in the suction direction by a coil spring 7.

Between the both side plates 8 of the oil case 1, a supporting shaft 12 which is rotatable about a rotating shaft center 11 in the left-right direction is provided, and a rotating shaft 12 is provided at an intermediate portion of the supporting shaft 12. An eccentric shaft portion 13 that is eccentric from the shaft center 11 is formed. Reference numeral 14 denotes an operating lever provided for each plunger 6. The central portion of these operating levers 14 is externally fitted to the eccentric shaft portion 13, and both ends thereof are swingable in the reciprocating direction of the plunger 6. The front surfaces of the end portions of the operating levers 14 are in contact with the base ends of the plungers 6.

Further, the other end of the operating lever 14 can freely come into contact with and separate from the tip of an adjusting bolt 15 (an example of an adjusting tool) that adjusts the swing amount of each operating lever 14. That is, these adjusting bolts 15 are provided on the upper part of the oil case 1, and the amount of protrusion of the operating lever 14 can be changed by rotating each adjusting bolt 15 to change the amount of protrusion toward the operating lever 14. ..

A cam shaft 17 is provided on the base end side of the plunger 6 so as to be rotatable around a horizontal axis 16 and both ends of the cam shaft 17 project outward from the left and right side plates 8. .. A drive device (not shown) for rotationally driving the cam shaft 17 is provided at one end of the cam shaft 17.

The cam shaft 17 is provided with a cam body 18 which can freely come into contact with and separate from the rear surface of one end of each actuating lever 14. These cam bodies 18 intermittently push out the plunger 6 in the ejection direction via one end of the actuating lever 14.

As shown in FIGS. 3 and 4, one end of the support shaft 12 is rotatably fitted in a sleeve 21 provided so as to project outward from the side plate 8 side. A cylindrical link driver 22 is rotatably fitted on the sleeve 21. A link arm portion 23 is attached to the outer peripheral surface of the link driver 22, and a long hole 24 that is long in the radial direction of the support shaft 12 is formed in the link arm portion 23.

A cylinder device 25 that can be remotely operated is an example of a rotation drive device that rotates the support shaft 12 by a predetermined angle. The tip end of the piston rod 26 of the cylinder device 25 is connected to the link arm portion 23 via a connecting pin 27 that is inserted into the elongated hole 24. The connecting pin 27 is slidable in the elongated hole 24. The cylinder device 25 is attached to a bracket 28 that is continuous from the oil case 1.

A manual handle 31 is provided on the outer side of the sleeve 21. That is, the manual handle 31 is composed of an arm portion 32 and a grip portion 33, and the base end portion of the arm portion 32 is fitted onto one end of the support shaft 12 protruding outward from the sleeve 21 and the key 34. Is connected to one end of the support shaft 12 via. A grip portion 33 is formed at the free end of the arm portion 32. Reference numeral 35 is a nut for retaining the manual handle 31.

A ratchet pin 36 is provided in the grip portion 33, and one end of the ratchet pin 36 can be inserted into and removed from a plurality of pin holes 37 a to 37 d formed in the link driver 22. The ratchet pin 36 is biased by the coil spring 40 in the fitting direction with respect to each of the pin holes 37a to 37d. A knob 41 for pulling out the ratchet pin 36 from the pin hole 37 is attached to the other end of the ratchet pin 36.

A fixing pin hole 38 is formed in the link driver 22, and when the cylinder device 25 fails, the fixing pin 42 is inserted into the fixing pin hole 38 and the tip of the fixing pin 42 is attached to the side plate 8. The link driver 22 can be fixed by inserting it into the fixing hole 43 formed on the side.

The operation of the above configuration will be described below. As shown in FIG. 1, by rotating the cam shaft 17, the cam body 18 rotates. When the cam body 18 comes into contact with one end of the actuating lever 14, the cam body 18 pushes the plunger 6 in the discharge direction B (forward) through the one end of the actuating lever 14, so that the inside of the cylinder 5 is removed. The lubricating oil is discharged from the discharge port 4. Further, when the cam body 18 is separated from one end of the operating lever 14, the plunger 6 is pushed back in the suction direction (backward) by the biasing force of the coil spring 7, so that the oil in the oil case 1 is discharged from the suction port 3. Inhaled into the cylinder 5. As a result, the oil in the oil case 1 is pressure-fed to the internal combustion engine side in an amount corresponding to the stroke of the plunger 6.

In order to adjust the stroke of each plunger 6 separately, each adjustment bolt 15 may be rotated to change the protrusion amount c toward the operating lever 14. That is, if the amount of protrusion C is increased, the swing amount of the actuating lever 14 is reduced, so that the stroke of the plunger 6 is reduced and the amount of lubricating oil pumped can be reduced. Similarly, if the protrusion amount c is reduced, the swing amount of the operating lever 14 increases, so that the stroke of the plunger 6 increases and the amount of oil pumped can be increased.

Further, the strokes of the plungers 6 can be collectively adjusted as follows. That is, as shown in FIG. 4, by operating the cylinder device 25 to project the piston rod 26 from the solid line to the position of the imaginary line, the link driver 22 rotates in one direction and is inserted into the pin hole 37b. The manual handle 31 rotates to one side via the ratchet pin 36, and the support shaft 12 rotates about the rotation shaft center 11 by a predetermined angle d. Thus, as shown in FIG. 5, the eccentric shaft portion 13 of the support shaft 12 is displaced upward from the solid line to the position of the imaginary line, so that the operating lever 14 is displaced upward. As a result, the distance from the shaft center 44 of the eccentric shaft portion 13 to the tip of the adjusting bolt 15 is shortened from A1 to A2, and the distance from the shaft center 44 of the eccentric shaft portion 13 to the plunger 6 base end is lengthened from B1 to B2. Therefore, the swing amount of the one end of the operating lever 14 increases, and the stroke of the plunger 6 increases from S1 to S2.

Further, as shown in FIG. 4, by retracting the piston rod 26 from the imaginary line to the solid line position, the link driver 22 rotates to the other side and the ratchet pin 36 fitted in the pin hole 37b. The manual handle 31 is rotated to the other side via, and the support shaft 12 is rotated about the rotation axis 11 by a predetermined angle d. Therefore, as shown in FIG. 5, the eccentric shaft portion 13 of the support shaft 12 is displaced downward from the imaginary line to the position of the solid line, so that the operating lever 14 is displaced downward. As a result, the distance from the shaft center 44 of the eccentric shaft portion 13 to the tip of the adjusting bolt 15 is increased from A2 to A1, and the distance from the shaft center 44 of the eccentric shaft portion 13 to the plunger 6 base end is B2 to B1. Therefore, the swing amount of the one end portion of the operating lever 14 is reduced, and the stroke of the plunger 6 is reduced from S2 to S1.

Further, as shown in FIG. 4, when the ratchet pin 36 is fitted in the positions of the other pin holes 37a, 37c, 37d, the displacement amount of the eccentric shaft portion 13 changes, so that the plunger 6 The amount of increase or decrease of the stroke can be changed.

Further, as shown in phantom line E in FIG. 3, by pulling out the ratchet pin 36 from the pin holes 37a to 37d, the manual handle 31 and the link driver 22 are cut off. This allows the operator to manually rotate the manual handle 31 to collectively adjust the strokes of the plungers 6.

In this way, since the support shaft 12 is rotated by the cylinder device 25, the strokes of the plungers 6 are collectively adjusted by remotely operating the cylinder device 25 from the steering room of the ship. can do. Also, by pulling out the ratchet pin 36 from the pin holes 37a to 37d, it is possible to manually operate the manual handle 31 to collectively adjust the strokes of the plungers 6, and to switch between remote operation and manual operation. Easy replacement. Therefore, the lubrication work before the internal combustion engine is started can be performed manually, and the lubrication work while the internal combustion engine is operating can be performed remotely.

In the above-described embodiment, since the cylinder device 25 and the link driver 22 are connected to each other via the connecting pin 27 that is inserted into the elongated hole 24, the elongated hole 24 absorbs the vertical displacement of the link arm portion 23. You can do it. Therefore, the vertical swing of the cylinder device 25 can be prevented.

The cylinder device 25 of the above embodiment may be a hydraulic cylinder device or an air cylinder device.

[0034]

[Effect of the device]

 As described above, according to the present invention, by rotating the rotation drive device to displace the eccentric shaft portion of the support shaft, the actuating lever is displaced, and the distance from the eccentric shaft portion to the tip of the adjusting tool, Since the distance from the eccentric shaft portion to the plunger base end changes, the swing amount of one end of the operating lever changes, and the stroke of the plunger can be adjusted.

Therefore, since it is not necessary for an operator to remotely operate the rotary drive device to go to the installation location of the lubricating oil supply device and operate the manual handle as in the conventional case, it is possible to adjust the stroke of the plunger. Can be done easily. As a result, the plunger pumps the optimum amount of lubricating oil to the internal combustion engine side, which extends the life of the internal combustion engine.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a lubricating oil supply device according to an embodiment of the present invention.

FIG. 2 is a partially cutaway front view of the lubricating oil supply apparatus.

FIG. 3 is a cross-sectional view showing a connecting portion between a support shaft and a cylinder device of the lubricating oil supply device.

FIG. 4 is a view on arrow AA in FIG.

FIG. 5 is a side view showing the relationship between the displacement of the eccentric shaft portion and the stroke of the plunger.

FIG. 6 is a vertical sectional side view of a conventional lubricating oil supply device.

FIG. 7 is a partially cutaway front view of a conventional lubricating oil supply device.

[Explanation of symbols]

 1 Oil case (main body) 5 Cylinder 6 Plunger 11 Rotating shaft center 12 Support shaft 13 Eccentric shaft part 14 Actuating lever 15 Adjusting bolt (adjusting tool) 17 Cam shaft (actuating device) 18 Cam body (actuating device) 25 Cylinder device ( Rotary drive)

Claims (1)

[Scope of utility model registration request] 1. A plunger for reciprocating in a cylinder to pump lubricating oil to an internal combustion engine side to a main body of a lubricating oil supply device, an operating device for operating the plunger, and a rotary shaft center for rotation. A free support shaft is provided, and an eccentric shaft portion that is eccentric from the rotation shaft center is formed on this support shaft. The center portion is externally fitted to the eccentric shaft portion and both end portions are swingable in the reciprocating direction of the plunger. An operating lever is provided, and one end of the operating lever is brought into contact with the proximal end of the plunger, and a tip of the operating lever is brought into contact with the other end of the operating lever to provide an adjusting tool for adjusting the swing amount of the operating lever. A lubricating oil supply device for an internal combustion engine, comprising a rotation drive device for rotating a shaft.