JP5739792B2 - Portable fire pump - Google Patents

Description

  The present invention relates to a technology for a portable firefighting pump.

  Conventionally, the technique regarding the portable fire pump which comprises a water pump and is comprised so that conveyance is possible is known (refer patent document 1). Such a portable fire pump is used for the purpose of discharging water (water) absorbed during a fire or fire fighting training to a fire extinguisher.

  As such a conventional portable fire fighting pump, there is known one equipped with a governor (governor) that keeps the rotational speed of the engine within a predetermined range. As the governor of the portable fire pump, a mechanical type equipped with a slider, a flyweight, and the like is used. Moreover, in the conventional portable fire pump, the lubricating oil is stored on the engine side and the governor side, respectively. In other words, the conventional portable fire pump needs to periodically check and replenish the lubricating oil on each side.

JP 2005-334138 A

  However, equipment equipped with a mechanical governor is not common, and it is necessary to periodically check and replenish the mechanical governor with lubricating oil. Not known compared to checking and refilling. For this reason, even with conventional portable fire fighting pumps, regular inspection and replenishment of mechanical governor lubricating oil is forgotten compared to periodic inspection and replenishment of engine lubricating oil. There are many cases. In this way, in the conventional portable fire pump, forgetting to check and replenish the governor lubricant, the governor malfunctions when used, and consequently the operation of the portable fire pump. Defects (exceeding the rotational speed of the engine beyond a predetermined range) may occur.

  The present invention has been made in view of the above situation, and can suppress the occurrence of malfunction of the speed governor due to forgetting to check and replenish the lubricating oil of the speed governor. It is an object of the present invention to provide a portable fire pump capable of suppressing the occurrence of malfunction of the fire pump.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

According to a first aspect of the present invention, the engine, a mechanical speed governor that keeps the rotational speed of the drive shaft of the engine within a predetermined range, and the rotating blades are rotated by the rotation of the drive shaft to suck the liquid. A portable fire pump having a pump for discharging the liquid, wherein a speed governor is interposed between the engine and the water pump, and the speed governor is connected between the engine and the water pump. It is configured on the outer periphery of the drive shaft located in between, and the lubricating oil that lubricates the sliding portion of the engine lubricates the sliding portion of the governor so that the lubricating oil that is pumped by the oil pump of the engine A governor inflow passage for branching out part of the engine from the engine to the governor and an engine inflow passage for returning the lubricating oil that has flowed out of the governor back into the engine are provided. Lubricating oil can be forcibly circulated in the speed machine. It is those that you have configured.

According to a second aspect of the present invention, in the portable fire pump according to the first aspect, the speed governor is disposed in a speed governor chamber in which the lubricating oil is stored, and the speed governor chamber, and the engine is operated. The support body is attached to the support body via a weight pin and a weight pin. When the support body rotates, the support body rotates as a unit, and the weight pin is rotated about the rotation axis by centrifugal force. The level of the lubricating oil stored in the governor chamber of the governor is lower than the engine drive shaft and higher than the lower end of the flyweight rotation locus. It is comprised as follows.

  As effects of the present invention, the following effects can be obtained.

  That is, according to the present invention, it is possible to suppress the occurrence of malfunction of the governor due to forgetting to check and replenish the lubricating oil of the governor, and consequently malfunction of the portable fire pump. This can be suppressed.

The front view which showed the whole structure of the portable fire fighting pump which concerns on 1st embodiment of this invention. FIG. Similarly left side view. Similarly right side view. A front cross section showing the internal structure of the portable fire pump. An enlarged front cross section showing the governor of the portable fire pump. The left side sectional view showing the internal structure of the portable fire fighting pump. The left side sectional view showing the internal structure of the portable fire fighting pump. The front cross section which showed the internal structure of the portable fire fighting pump which concerns on 2nd embodiment of this invention. An enlarged front cross section showing the governor of the portable fire pump. The left side sectional view showing the internal structure of the portable fire fighting pump.

  Next, the portable fire fighting pump 1 which concerns on 1st embodiment of this invention is demonstrated using FIGS. 1-8.

  As shown in FIGS. 1 to 4, the portable fire pump 1 is provided with a water absorption hose 2 and a water discharge hose 3, and discharges water (water) absorbed from the water absorption hose 2 during a fire or fire fighting drill. A fire pump that discharges water from 3 to a water discharge target, and is configured to be transportable. The portable fire pump 1 is always installed in, for example, a fire department, a fire brigade, or a dangerous goods facility.

  As shown in FIGS. 5 to 7, the portable fire pump 1 includes an engine 10, a pumping pump 20, and a speed governor 30. The speed governor 30 of the portable fire pump 1 is a mechanical speed governor (governor), and is configured to keep the rotational speed of the engine 10 within a predetermined range. The governor 30 of the portable fire pump 1 is disposed on the side of the engine 10. Here, the rotational speed of the engine 10 within a predetermined range indicates a range where the portable fire pump 1 functions safely and the engine 10 does not easily fail. The pumping pump 20 of the portable fire pump 1 is configured to suck liquid (water) and discharge liquid when the engine 10 is operated. The pump 20 of the portable fire pump 1 is disposed on the side of the governor 30 (on the side opposite to the side where the engine 10 is disposed). In addition, the portable fire pump 1 is configured so that lubricating oil can circulate in the engine 10 and the speed governor 30. The lubricating oil of the portable fire pump 1 lubricates the sliding portion of the engine 10 and the sliding portion of the governor 30.

  The engine 10 of the portable fire pump 1 is a four-cycle engine, and includes a cylinder block 12, a cylinder head 11, an oil pan 13, an oil storage chamber, an oil pump 14, a drive shaft 15, and the like. The engine 10 of the portable fire pump 1 includes a cylinder head 11 disposed above a cylinder block 12 and an oil pan 13 disposed below the cylinder block 12. The engine 10 of the portable fire pump 1 is configured with a drive shaft 15 disposed so as to protrude from the cylinder block 12 to the side where the governor 30 and the pumping pump 20 are disposed. The drive shaft 15 of the engine 10 in the portable fire pump 1 is configured to rotate when the engine 10 is operated.

  The oil storage chamber of the engine 10 in the portable fire pump 1 stores lubricating oil and is formed in the oil pan 13. The oil pump 14 of the engine 10 in the portable fire pump 1 is configured to perform an operation of pumping the lubricating oil stored in the oil storage chamber when the engine 10 is operated.

  The engine 10 of the portable fire pump 1 includes an engine side outflow hole 16 and an engine side inflow hole 17. The engine-side outflow hole 16 of the engine 10 in the portable firefighting pump 1 is a hole that branches a part of the lubricating oil pumped by the oil pump 14 and takes it out from the engine 10 to the outside of the engine 10. The engine-side outflow hole 16 of the engine 10 in the portable fire pump 1 is formed in the cylinder block 12 of the engine 10 (the middle part of the engine 10). The engine-side inflow hole 17 of the engine 10 in the portable fire pump 1 is a hole through which lubricating oil that has flowed out of the governor 30 flows from the outside of the engine 10 into the engine 10 (oil storage chamber of the engine 10). The engine-side inflow hole 17 of the engine 10 in the portable fire pump 1 is formed in the oil pan 13 of the engine 10 (lower part of the engine 10).

  Here, the sliding portion of the engine 10 in the portable fire pump 1 is arranged in the engine 10 among the members constituting the engine 10, and operates while a plurality of members are in contact with each other. For example, the part between the inner wall of the cylinder and the piston.

  The water pump 20 of the portable fire pump 1 includes a pump case 21, a suction part 22, and a discharge part 23. The lift pump 20 of the portable firefighting pump 1 is configured such that the drive shaft 15 of the engine 10 is inserted from the side of the pump case 21 and the tip of the drive shaft 15 of the engine 10 is disposed in the pump case 21.

  The suction part 22 of the water pump 20 in the portable fire pump 1 is a part that sucks liquid, and is configured to be connectable to one end of the water suction hose 2 (see FIGS. 1 to 4). The discharge | release part 23 of the pumping pump 20 in the portable fire pump 1 is a part which discharge | releases a liquid, and is comprised so that connection to the one end part of the water discharge hose 3 is possible (refer FIG. 1 thru | or FIG. 4). The suction part 22 and the discharge part 23 of the pumping pump 20 in the portable fire pump 1 are respectively formed in the pump case 21.

  A pumping pump 20 in the portable fire pump 1 includes an impeller in a pump case 21 and includes a vacuum pump connected to the pump case 21 by piping. The vacuum pump of the lift pump 20 in the portable fire pump 1 is inhaled by the rotation of the rotor attached to the vacuum pump shaft driven from the drive shaft 15 of the engine 10 via the V-belt by receiving the power of the engine 10. It is configured to drive the air in the portion 22 to be extracted and to suck liquid from the suction portion 22. The impeller of the pumping pump 20 in the portable fire pump 1 is attached to the tip of the drive shaft 15 of the engine 10 and rotates integrally with the drive shaft 15 when the drive shaft 15 of the engine 10 rotates. Configured as follows. The impeller of the lift pump 20 in the portable fire pump 1 rotates when the drive shaft 15 of the engine 10 rotates, applies pressure to the liquid sucked from the suction part 22, and discharges the liquid from the discharge part 23. Configured to do.

  In this way, the pump 20 of the portable fire pump 1 is configured to operate the water absorption hose 2 by operating the engine 10 with the other end of the water absorption hose 2 connected to the suction portion 22 disposed in water. The liquid is sucked from the suction part 22 through the discharge part 23, the liquid is discharged from the discharge part 23, and the liquid is discharged from the other end of the discharge hose connected to the discharge part 23.

  The speed governor 30 in the portable fire pump 1 includes a speed governor case 31, a speed governor chamber 31a, a slider 32, a support 33, a pair of flyweights 34 and 34, an arm 36, and a shaft 37. And a lever 38 and an urging member 44. The speed governor 30 in the portable fire pump 1 is configured such that the drive shaft 15 of the engine 10 is penetrated from the side of the speed governor case 31, and a part of the drive shaft 15 of the engine 10 is a speed governor chamber 31a (speed governor). The machine room 31a is disposed and configured so as to be located in the upper and lower central part).

  A governor chamber 31 a of the governor 30 in the portable fire pump 1 is formed in the governor case 31. In the governor chamber 31a of the governor 30 in the portable fire pump 1, a slider 32, a support 33, a fly weight 34, an arm 36, and the like are disposed, and lubricating oil is stored. In the portable fire pump 1, the lubricating oil is stored in the speed governor chamber 31 a of the speed governor 30 such that at least a part of the sliding portion of the speed governor 30 is immersed.

  The slider 32 of the governor 30 in the portable fire pump 1 is a substantially annular member. The slider 32 of the speed governor 30 in the portable fire pump 1 has the drive shaft 15 of the engine 10 fitted in a fitting insertion hole 32a formed in the center thereof, and the engine 10 on the engine 10 side or the pumping pump 20 side. The drive shaft 15 is configured to be slidable.

  The support 33 of the speed governor 30 in the portable fire pump 1 supports the flyweight 34 and is fixed to the drive shaft 15 of the engine 10 on the engine 10 side of the slider 32. The support 33 of the speed governor 30 in the portable fire pump 1 is configured to rotate integrally with the drive shaft 15 of the engine 10 when the engine 10 is operated.

  The flyweights 34 and 34 of the speed governor 30 in the portable firefighting pump 1 are arranged at the edge of the support 33 so as to face each other with the drive shaft 15 of the engine 10 in between. The flyweight 34 of the speed governor 30 in the portable firefighting pump 1 is attached to the edge of the support 33 via a weight pin 35 and supported by the support 33. The flyweight 34 of the governor 30 in the portable fire pump 1 is arranged so that the pin hole formed in the flyweight 34 matches the pin hole formed in the edge portion of the support 33. The weight pin 35 is inserted into the pin hole 33 and the fly hole 34 so that the weight pin 35 is inserted into the pin 33 and supported by the support 33. The flyweight 34 of the speed governor 30 in the portable firefighting pump 1 is configured to rotate integrally with the support 33 when the support 33 rotates. When the support 33 is rotated, the flyweight 34 of the governor 30 in the portable fire pump 1 is rotated about the weight pin 35 as a rotation axis by centrifugal force, and the drive shaft 15 (support) of the engine 10 is supported. 33 rotating shafts). The flyweight 34 of the speed governor 30 in the portable fire pump 1 has a support 33 (the outer end of the rotation trajectory of the support 33) at the outer end (lower end) of the flyweight 34 when the support 33 rotates. ) So that it can be opened so as to be located outside (below).

  The shaft 37 of the governor 30 in the portable fire pump 1 is a rod-shaped member. The shaft 37 of the governor 30 in the portable fire pump 1 is disposed above the drive shaft 15 of the engine 10 so as to be orthogonal to the axial direction of the drive shaft 15 of the engine 10. The shaft 37 of the speed governor 30 in the portable fire pump 1 is configured to be rotatable about the axis direction as a rotation axis.

  The arm 36 of the speed governor 30 in the portable firefighting pump 1 is a substantially U-shaped member when viewed from the side, such that the both sides in the longitudinal direction of a flat plate-shaped member having a rectangular shape in plan view are bent downward. It is. The arm 36 of the governor 30 in the portable firefighting pump 1 is fixed to the shaft 37 with a screw or the like in a state where the shaft 37 is fitted and inserted into the base end portion of the portion projecting downward. The arm 36 of the speed governor 30 in the portable fire pump 1 rotates with the shaft 37 rotating around the base end portion (rotating axis of the shaft 37) of the portion protruding below the arm 36 as a rotating shaft. Configured as follows. The arm 36 of the speed governor 30 in the portable fire pump 1 has followers 41 and 41 attached to both ends of the projecting portion of the governor 30 via follower pins 42 and 42, respectively. It arrange | positions so that it may each contact | abut to the surface at the side of the pump 20. The follower 41 of the speed governor 30 in the portable fire pump 1 is configured to rotate about the follower pin 42 as a rotation axis.

  The lever 38 of the speed governor 30 in the portable fire pump 1 is a member obtained by bending a substantially rectangular flat plate member in front view into a crank shape in side view. One end (lower end) of the lever 38 of the governor 30 in the portable fire pump 1 is fixed to one end of the shaft 37. The lever 38 of the speed governor 30 in the portable fire pump 1 is configured to rotate about the lower end portion of the lever 38 (the rotation axis of the shaft 37) as a rotation axis when the shaft 37 rotates.

  One end of the link 43 is connected to the other end (upper end) of the lever 38 of the governor 30 in the portable fire pump 1 in the longitudinal direction. The other end of the link 43 of the governor 30 in the portable fire pump 1 is connected to the throttle valve of the engine 10. The portable firefighting pump 1 is configured such that the opening of the throttle valve of the engine 10 is increased by the lever 38 rotating toward the pumping pump 20 and the link 43 of the governor 30 being pulled toward the pumping pump 20. Is done. The portable fire pump 1 is configured to reduce the opening of the throttle valve of the engine 10 when the lever 38 rotates to the engine 10 side and the link 43 of the governor 30 is pushed to the engine 10 side. .

  The lever 38 of the speed governor 30 in the portable fire pump 1 is provided with an urging member 44 (for example, a coil spring). The urging member 44 of the speed governor 30 in the portable fire pump 1 urges the arm 36 in a direction rotating toward the engine 10 and urges the lever 38 in a direction rotating toward the pumping pump 20. Configured as follows. The urging member 44 of the speed governor 30 in the portable fire pump 1 is a centrifugal force applied to the flyweight 34 (the degree of rotation of the arm 36 and the lever 38) so that the rotational speed of the engine 10 can be maintained within a predetermined range. It has an urging force that balances with.

  In the governor 30 of the portable fire pump 1 configured as described above, when the rotational speed of the engine 10 is about to exceed a predetermined range, the engine 10 is operated and the support shaft 33 together with the drive shaft 15 is operated. , The flyweight 34 is rotated and opened by centrifugal force to press the slider 32, and the slider 32 slides toward the pumping pump 20 against the urging force of the urging member 44. In the governor 30 of the portable fire pump 1, the sliding slider 32 presses the follower 41, and the arm 36 rotates toward the pumping pump 20 against the urging force of the urging member 44. Furthermore, in the speed governor 30 of the portable fire pump 1, the shaft 36 rotates as the arm 36 rotates, and the lever 38 rotates toward the engine 10 against the urging force of the urging member 44. When the link 43 is pushed to the engine 10 side, the opening degree of the throttle valve of the engine 10 becomes small. In this manner, in the governor 30 of the portable fire pump 1, when the rotational speed of the engine 10 is about to exceed a predetermined range, the opening of the throttle valve of the engine 10 is reduced to reduce the engine speed. The rotational speed of the engine 10 is kept within a predetermined range so as not to increase the rotational speed.

  The governor 30 of the portable fire pump 1 includes a governor-side outflow hole 39 and a governor-side inflow hole 40. In the governor-side outflow hole 39 of the governor 30 in the portable fire pump 1, the lubricant that lubricates the sliding portion of the governor 30 is governed by the governor 30 (the governor chamber 31a of the governor 30). This hole flows out from the governor 30 from the inside. The governor side outflow hole 39 of the governor 30 in the portable fire pump 1 is formed in the lower part of the governor chamber 31 a of the governor 30. In the governor-side inflow hole 40 of the governor 30 in the portable fire pump 1, the lubricating oil that has flowed out of the engine 10 flows from outside the engine 10 into the engine 10 (the governor chamber 31 a of the governor 30). It is a hole. The governor side inflow hole 40 of the governor 30 in the portable fire pump 1 is formed in the upper part of the governor chamber 31 a of the governor 30.

  Here, the sliding part of the speed governor 30 in the portable fire pump 1 is arranged in the speed governor chamber 31a among the members constituting the speed governor 30, and a plurality of members are provided. The part which operates while contacting each other is shown. Specifically, the sliding portion of the speed governor 30 in the portable fire pump 1 is a portion in which the drive shaft 15 of the engine 10 is inserted into the insertion hole 32a of the slider 32, and the fly weight 34 has the weight pin 35. A portion to be attached to the support 33 via the contact portion, a contact portion between the flyweight 34 and the slider 32, a contact portion between the slider 32 and the follower 41, or the like is shown.

  The portable fire pump 1 includes a governor inflow path 50 and an engine inflow path 60. In the governor inflow passage 50 of the portable fire pump 1, the lubricant in the engine 10 (oil storage chamber of the engine 10) flows out of the engine 10 from the engine-side outflow hole 16 of the engine 10, and the governor. 30 is a lubricating oil flow path that circulates when flowing into the governor 30 (the governor chamber 31a of the governor 30) from the thirty governor-side inflow hole 40. In the engine inflow path 60 of the portable fire pump 1, the lubricating oil in the governor 30 (the governor chamber 31 a of the governor 30) is fed from the governor side outflow hole 39 of the governor 30 to the governor. 30 is a lubricating oil flow path that flows when the fuel flows out of the engine 30 and flows into the engine 10 (the oil storage chamber of the engine 10) from the engine-side inflow hole 17 of the engine 10.

  The portable fire pump 1 includes a governor inflow pipe 51. The governor inflow pipe 51 of the portable fire pump 1 is a member configured in a pipe shape. The governor inflow pipe 51 of the portable fire pump 1 is configured as a governor inflow passage 50. One end of the governor inflow pipe 51 of the portable fire pump 1 is connected to the engine side outflow hole 16 of the engine 10. The other end of the governor inflow pipe 51 of the portable fire pump 1 is connected to the governor side inflow hole 40 of the governor 30. The portable fire pump 1 communicates between the engine 10 and the governor 30 (the governor chamber 31a of the governor 30) via the governor inflow pipe 51 (the governor inflow passage 50). Configured as follows.

  The portable fire pump 1 includes an engine inflow pipe 61. The engine inflow pipe 61 of the portable fire pump 1 is a member configured in a pipe shape. The engine inflow pipe 61 of the portable fire pump 1 is configured as an engine inflow path 60. One end of the engine inflow pipe 61 of the portable fire pump 1 is connected to the speed governor-side outflow hole 39 of the speed governor 30 via a connection member 62. The connection member 62 of the portable fire pump 1 connects the speed governor side outflow hole 39 of the speed governor 30 and the engine inflow pipe 61 and is configured in a cylindrical shape. One end of the connection member 62 of the portable fire pump 1 is inserted into the governor side outflow hole 39 of the governor 30 and the other end is inserted into one end of the engine inflow pipe 61. The governor side outflow hole 39 of the governor 30 and the engine inflow pipe 61 are connected. The other end of the engine inflow pipe 61 of the portable fire pump 1 is connected to the engine side inflow hole 17 of the engine 10. The portable fire pump 1 is configured such that the interior of the governor 30 (the governor chamber 31a of the governor 30) and the engine 10 (the oil storage chamber of the engine 10) pass through the engine inflow pipe 61 (engine inflow path 60). Configured to communicate with each other.

  In the portable fire pump 1, a part of the lubricating oil pumped by the oil pump 14 of the engine 10 flows out of the engine 10 from the engine side outflow hole 16 of the engine 10 and passes through the governor inflow path 50. The speed governor 30 is configured to flow into the speed governor 30 (the speed governor chamber 31a of the speed governor 30) from the speed governor side inlet hole 40 of the speed governor 30. Further, in the portable fire pump 1, the lubricating oil that has lubricated the sliding portion of the governor 30 flows out of the governor 30 from the governor-side outflow hole 39, and the lubricating oil is discharged. The engine 10 is configured to flow into the engine 10 (oil storage chamber of the engine 10) from the engine-side inflow hole 17 of the engine 10 via the engine inflow path 60.

  In this way, the portable fire pump 1 is connected to the governor in the engine 10 (oil storage chamber of the engine 10) so as to lubricate the sliding portion of the governor 30 when the engine 10 is operated. 30 (the governor chamber 31a of the governor 30) is configured to be able to circulate the lubricating oil. Thus, in the portable fire pump 1, the lubricating oil lubricates the engine 10 and the speed governor 30 so as to lubricate the sliding portion of the speed governor 30. If inspection / replenishment is performed, it is not necessary to inspect and replenish the lubricating oil of the governor 30 on the governor 30 side. Therefore, according to the portable fire pump 1, the malfunction of the governor 30 due to forgetting to check and replenish the lubricating oil of the governor 30 can be suppressed, and consequently the portable fire pump 1 Occurrence of malfunction can be suppressed. Moreover, according to the portable fire pump 1, since it is not necessary to check and replenish the lubricating oil on the governor 30 side, the lubricating oil is inspected and replenished on the engine 10 side and the governor 30 side. Compared to the structure to be performed, the structure can be simplified.

  The governor-side outflow hole 39 of the governor 30 in the portable fire pump 1 is formed so as to penetrate the governor case 31 from the governor chamber 31a to the outside of the governor chamber 31a. The governor-side outflow hole 39 of the governor 30 in the portable fire pump 1 is formed so as to penetrate the governor case 31 in the front-rear direction. When the level of the lubricating oil stored in the governor chamber 31a reaches the lower end of the opening 39a on the governor chamber 31a side in the governor-side outflow hole 39, the portable fire pump 1 adjusts the lubricant oil. It is configured to flow out from the speed machine side outflow hole 39.

  The governor side outflow hole 39 of the governor 30 in the portable fire pump 1 is formed to be positioned below the drive shaft 15 of the engine 10. The lower end of an opening 39a on the governor chamber 31a side (inside the governor chamber 31a of the governor 30) of the governor-side outflow hole 39 of the governor 30 in the portable fire pump 1 is a support. The flyweight 34 is formed so as to be positioned above the lower end of the rotation trajectory of the flyweight 34 when the flyweight 34 is opened to the outside of the support 33 by the rotation of the support 33. That is, in the portable fire pump 1, the level of the lubricating oil stored in the governor chamber 31 a of the governor 30 is lower than the drive shaft 15 of the engine 10 and the support 33 rotates to support the flyweight 34. It is configured to be higher than the lower end of the rotation trajectory of the flyweight 34 when opened outward from the body 33.

  As described above, in the portable fire pump 1, the liquid level of the lubricating oil stored in the governor chamber 31 a of the governor 30 is such that the support 33 rotates and the flyweight 34 is placed outside the support 33. It is located above the lower end of the rotation trajectory of the flyweight 34 when opened. In the portable fire pump 1, when the engine 10 is operated and the drive shaft 15 of the engine rotates at high speed, the flyweight 34 also rotates integrally with the drive shaft 15 (support 33 and). For this reason, in the portable fire pump 1, the lubricating oil stored in the governor chamber 31 a of the governor 30 when the support 33 rotates and the flyweight 34 opens outward from the support 33. The fly weight 34 that rotates at a high speed will be flipped up. Thus, in the portable fire pump 1, the sliding part of the governor 30 above the liquid level of the lubricating oil can be lubricated with the lubricating oil.

  Further, the governor side outflow hole 39 of the governor 30 in the portable firefighting pump 1 has a lower end of the opening 39a on the governor chamber 31a side (inside the governor chamber 31a of the governor 30), It is formed so as to be positioned above the lower end of the rotation locus of the support 33. That is, in the portable fire pump 1, the liquid level of the lubricating oil stored in the governor chamber 31 a of the governor 30 is lower than the drive shaft 15 of the engine 10 and higher than the lower end of the rotation locus of the support 33. As configured.

  Thus, in the portable fire pump 1, the liquid level of the lubricating oil stored in the governor chamber 31 a of the governor 30 is positioned above the lower end of the rotation locus of the support 33. In the portable fire pump 1, when the engine 10 is operated and the drive shaft 15 of the engine rotates at a high speed, the support body 33 also rotates integrally with the drive shaft 15 at a high speed. For this reason, in the portable fire pump 1, when the support body 33 rotates, the lubricating oil stored in the governor chamber 31a of the governor 30 is supported by the support body 33 of the governor 30 that rotates at the high speed. It will be bounced up by. In this way, in the portable fire fighting pump 1, even when the flyweight 34 does not open outward from the support 33, the lubricant is sprinkled up by the support 33 and the speed governor above the liquid level of the lubricant is increased. The 30 sliding parts can be lubricated with lubricating oil.

  Further, the governor side outflow hole 39 of the governor 30 in the portable firefighting pump 1 has a lower end of the opening 39a on the governor chamber 31a side (inside the governor chamber 31a of the governor 30), The flyweight 34 is formed so as to be positioned slightly above the lower end of the rotation locus of the portion attached to the support 33 via the weight pin 35. That is, in the portable fire pump 1, the level of the lubricating oil stored in the governor chamber 31 a of the governor 30 is the rotation locus of the portion where the flyweight 34 is attached to the support 33 via the weight pin 35. It is comprised so that it may become a little higher than the lower end of.

  For this reason, in the portable fire pump 1, when the support body 33 of the speed governor 30 rotates, the fly weight 34 which is a sliding part of the speed governor 30 is attached to the support body 33 via the weight pin. Will surely come into contact with the lubricating oil in the governor chamber 31a, and the part where the flyweight 34 is attached to the support 33 via the weight pin can be lubricated with the lubricating oil. Therefore, according to the portable fire pump 1, it is possible to suppress the malfunction of the speed governor 30 caused by the rotation failure of the flyweight 34, and consequently the malfunction of the portable fire pump 1 occurs. Can be suppressed.

  The governor-side inflow hole 40 of the governor 30 in the portable fire pump 1 is formed so as to penetrate the governor case 31 from the governor chamber 31a to the outside of the governor chamber 31a. The opening 40a on the governor chamber 31a side (inside the governor chamber 31a of the governor 30) of the governor side inflow hole 40 of the governor 30 in the portable fire pump 1 is provided in the governor chamber 31a. It is formed above the liquid level of the lubricating oil. The opening 40 a on the governor chamber 31 a side of the governor-side inflow hole 40 of the governor 30 in the portable fire pump 1 is formed so as to be located above the drive shaft 15 of the engine 10. An opening 40 a on the governor chamber 31 a side of the governor-side inflow hole 40 of the governor 30 in the portable fire pump 1 is formed so as to be located above the fitting insertion hole 32 a of the slider 32.

  For this reason, in the portable fire pump 1, the lubricating oil that has flowed into the governor chamber 31a from the governor side inflow hole 40 passes through the opening 40a on the governor chamber 31a side of the governor side inflow hole 40 to the slider. It will flow down to the part (or its vicinity) where the drive shaft 15 of the engine 10 of the 32 insertion hole 32a is inserted. In this manner, the portable fire pump 1 can reliably lubricate the portion of the insertion insertion hole 32a of the slider 32, which is the sliding portion of the governor 30, into which the drive shaft 15 of the engine 10 is inserted. . Therefore, according to the portable fire pump 1, it is possible to suppress the malfunction of the governor 30 due to the sliding failure of the slider 32, and as a result, the malfunction of the portable fire pump 1 occurs. This can be suppressed.

  In the portable fire pump 1, the opening 40 a on the governor chamber 31 a side of the governor-side inflow hole 40 of the governor 30 is formed so as to be located on the side of the drive shaft 15 of the lubricating oil engine 10. (See FIG. 8).

  Next, the portable fire fighting pump 1 according to the second embodiment of the present invention will be described with reference to FIGS. 9 to 11. In addition, description of the portable fire pump 1 which concerns on 2nd embodiment is abbreviate | omitted suitably about the part of the structure similar to the portable fire pump 1 which concerns on 1st embodiment, and the portable fire pump which concerns on 1st embodiment. The description will focus on the parts different from the configuration of 1.

  As shown in FIGS. 9 to 11, the governor-side outflow hole 39 of the governor 30 in the portable fire pump 1 is formed so as to penetrate the governor case 31 in the vertical direction. The governor-side outflow hole 39 of the governor 30 in the portable fire pump 1 is formed so that the opening 39a on the governor chamber 31a side is located in the lower part of the governor chamber 31a.

  The portable fire pump 1 includes an extending member 70 as shown in FIGS. 9 to 11. The extending member 70 of the portable fire pump 1 is a member configured in a cylindrical shape. In the governor chamber 31 a of the governor 30, the governor-side outflow hole 39 on the governor chamber 31 a side. It arrange | positions so that it may extend upwards from the opening 39a. The extension member 70 of the portable firefighting pump 1 is fitted into the opening 39a on the governor chamber 31a side of the governor-side outflow hole 39 of the governor 30 so that the governor 30 can be adjusted. Provided in the speed chamber 31a. The portable fire pump 1 is configured such that lubricating oil that has lubricated the sliding portion of the governor 30 flows out from the governor-side outflow hole 39 through the extension member 70.

  The extension member 70 of the portable fire pump 1 is arranged so that the opening 70 a at the upper end is located below the drive shaft 15 of the engine 10. The extension member 70 of the portable fire pump 1 is arranged so that the opening 70 a at the upper end is located above the lower end of the rotation locus of the support 33. The extension member 70 of the portable fire pump 1 has the opening 70a at the upper end thereof rotated by the flyweight 34 when the support body 33 of the speed governor 30 rotates and the flyweight 34 opens to the outside of the support body 33. It arrange | positions so that it may be located above the lower end of a locus | trajectory. The extension member 70 of the portable fire pump 1 has an upper end opening 70a positioned slightly above the lower end of the rotation trajectory of the part where the flyweight 34 is attached to the support 33 via the weight pin 35. It is formed. In the portable fire pump 1, the lubricating oil stored in the governor chamber 31 a reaches the governor side outflow hole via the extending member 70 when the liquid level reaches the opening 70 a at the upper end of the extending member 70. 39 is configured to flow out. In this way, the portable fire pump 1 has the lubricating oil level stored in the governor chamber 31a of the governor 30 lower than the drive shaft 15 of the engine 10 and the lower end of the rotation locus of the support 33. Also configured to be higher. In the portable fire pump 1, the liquid level of the lubricating oil stored in the governor chamber 31 a of the governor 30 is lower than the drive shaft 15 of the engine 10, and the flyweight 34 is located outside the support 33. The flyweight 34 is configured to be higher than the lower end of the rotation trajectory of the flyweight 34 when opened. Further, the portable fire pump 1 is a support body in which the level of the lubricating oil stored in the governor chamber 31 a of the governor 30 is lower than the drive shaft 15 of the engine 10 and the flyweight 34 is interposed via the weight pin 35. It is comprised so that it may become a little higher than the lower end of the rotation locus of the part attached to 33. FIG.

  The extending member 70 of the portable fire pump 1 is changed by changing the length of the governor-side outflow hole 39 of the governor 30 extending from the opening 39a on the governor chamber 31a side. The position of the opening 70a at the upper end of the head can be changed up and down. The portable fire pump 1 replaces the existing extending member 70 with a longer or shorter extending member 70 in the axial direction, or the governor chamber 31a of the governor-side outlet hole 39 in the governor 30. The length extending from the opening 39a on the governor chamber 31a side of the governor-side outflow hole 39 in the governor 30 by increasing or decreasing the depth of insertion of the extending member 70 into the opening 39a on the side. It is configured to be changeable. As described above, in the portable fire pump 1, the level of the lubricating oil stored in the governor chamber 31 a of the governor 30 is changed by changing the position of the opening 70 a at the upper end of the extending member 70 up and down. The height can be changed. In this way, the portable fire pump 1 can adjust the portion lubricated with the lubricating oil in the sliding portion of the governor 30.

DESCRIPTION OF SYMBOLS 1 Portable fire fighting pump 2 Water absorption hose 3 Water discharge hose 10 Engine 20 Lifting pump 30 Governor 50 Governor inflow path 60 Engine inflow path

Claims (2)

An engine, a mechanical speed governor that keeps the rotational speed of the drive shaft of the engine within a predetermined range, and rotating the rotating blades by the rotation of the drive shaft to suck liquid and discharge the liquid A portable fire pump having a pump
A governor is interposed between the engine and the pump, and the governor is configured on the outer periphery of a drive shaft located between the engine and the pump.
A part of the lubricating oil pumped by the oil pump of the engine is branched from the engine to the governor so that the lubricating oil that lubricates the sliding portion of the engine lubricates the sliding portion of the governor. Providing a governor inflow passage for flowing out, and an engine inflow passage for returning the lubricating oil that has flowed out of the governor back into the engine;
A portable fire pump characterized in that lubricating oil can be forcibly circulated in the engine and the speed governor . 2. The portable fire pump according to claim 1, wherein the speed governor is disposed in a speed governor chamber in which the lubricating oil is stored, and is disposed in the speed governor chamber and is rotated when the engine is operated. A body and a flyweight attached to the support via a weight pin, rotating integrally with the support rotating, and rotating with the weight pin as a rotation axis by centrifugal force, The lubricating oil level stored in the governor chamber of the governor is configured to be lower than the engine drive shaft and higher than the lower end of the flyweight rotation locus. Portable fire-fighting pump characterized by

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