JP2011252458A - Mechanical apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mechanical apparatus which allows the condition of a magnet to be easily confirmed even at the time other than the replacement of a lubricant and which allows the wear condition of a sliding component to be checked at any time.SOLUTION: An inspection hole 8 is provided in an oil pan 3 (housing) of an engine 1 (mechanical apparatus) to enable the magnet 7 provided inside the oil pan 3 to be visually recognized through the inspection hole 8. As a result, it is easily confirmed whether wear powder adheres to the magnet 7 without disassembling the engine 1 or extracting the lubricant inside the engine 1.

Description

  The present invention relates to a mechanical device having sliding parts such as a bearing and a gear, and specifically relates to a mechanical device such as an engine, a bearing support device, and a reduction gear.

  In a mechanical device having sliding parts such as bearings and gears, metal wear powder generated by wear of the sliding parts may be mixed into the lubricating oil. When this wear powder is supplied to the sliding component together with the lubricating oil, the wear powder may be caught in the sliding component and damaged.

  For example, a reduction gear (gear case) shown in Patent Document 1 has a magnet provided inside a housing (magnetic body recovery chamber). By bringing the magnet into contact with the lubricating oil and adsorbing the wear powder mixed in the lubricant with the magnet, it is possible to prevent the wear powder from being caught in the sliding component as described above.

JP 2009-210043 A

  In such a mechanical device, the wear state of the sliding component can be checked by checking the amount of wear powder adhering to the magnet. However, in order to check the magnet provided in the housing, it is necessary to disassemble the mechanical device or to temporarily remove the lubricating oil held in the mechanical device. For this reason, the magnet can actually be confirmed only at the time of replacement of the lubricating oil, and it is difficult to check the wear state of the sliding component at other times.

  The problem to be solved by the present invention is to provide a mechanical device that can easily check a magnet even when the lubricating oil is not replaced, and can check the wear state of the sliding component at any time.

  In order to solve the above-mentioned problems, the present invention provides a housing, a sliding component disposed inside the housing, a lubricating oil that is held inside the housing and lubricates the sliding component, and a lubricating oil inside the housing. And a magnet provided at a position in contact with the magnet, wherein a viewing window is provided at a position in the housing where the magnet can be visually recognized from the outside.

  In this way, by providing a viewing window in the housing, the magnet can be visually recognized from the outside, so that the wear powder adheres to the magnet without disassembling the mechanical device or removing the lubricating oil inside the mechanical device. It is possible to easily confirm whether or not

  If the magnet and the observation window are integrated, the attachment operation can be simplified because the magnet and the observation window can be simultaneously attached to the mechanical device.

  The magnet can be provided, for example, in an oil storage chamber that stores lubricating oil. In this case, when a discharge port for discharging the lubricating oil from the oil storage chamber and a blocking plug for closing the discharge port are provided, and the blocking plug is formed of a magnet, the blocking plug and the magnet are separately formed. The number of members and the number of installation work steps can be reduced compared to the above.

  Usually, since the inside of the housing is a sealed dark space, it may be difficult to confirm whether or not the wear powder is attached to the magnet even if a viewing window is provided. Therefore, if a light window for taking in light is provided inside the housing or an illumination member for illuminating the inside of the housing is provided, the state of the magnet can be easily confirmed. In the latter case, if the lighting member is provided on the closing plug, the wiring can be supplied to the lighting member provided inside the housing through the closing plug.

  The above-described mechanical device can be used as an engine, a bearing support device, or a speed reducer.

  As described above, the mechanical device of the present invention can easily check the magnet by providing the observation window through which the magnet can be visually recognized from the outside. Thereby, since the adhesion of the wear powder to the magnet can be confirmed at any time, the wear state of the sliding component can be checked at any time.

It is sectional drawing which shows notionally the engine as a mechanical apparatus concerning one Embodiment of this invention. It is the side view which looked at the oil pan of FIG. 1 from the A direction. It is sectional drawing of the observation window vicinity of the engine concerning other embodiment. It is a side view of the vicinity of the peephole of the engine concerning other embodiments. It is a side view of the vicinity of the peephole of the engine concerning other embodiments. It is a side view of the vicinity of the peephole of the engine concerning other embodiments. It is sectional drawing of the bearing support apparatus as a mechanical apparatus concerning other embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an engine 1 as a mechanical device according to an embodiment of the present invention. The engine 1 includes an engine block 2 and an oil pan 3 provided below the engine block 2. Inside the engine block 2, sliding parts (not shown) such as bearings and gears are provided. An oil storage chamber 4 is provided inside the oil pan 3, and the lubricating oil P stored in the oil storage chamber 4 is supplied to the sliding component inside the engine block 2, whereby the sliding component is lubricated. Thus, in this embodiment, the engine block 2 and the oil pan 3 function as a housing having sliding parts and lubricating oil inside.

  A lower part of the oil pan 3 is provided with a discharge port 5 for discharging the lubricating oil P and a closing plug 6 for closing the discharge port 5. In the present embodiment, the closing plug 6 is constituted by a bolt fixed to the discharge port 5 with a screw.

  A magnet 7 is provided inside the housing (in the present embodiment, inside the oil pan 3). When the magnet 7 comes into contact with the lubricating oil P stored in the oil storage chamber 4, the metal wear powder mixed in the lubricating oil P is attracted to the magnet 7. The magnet 7 can be composed of a permanent magnet such as a ferrite magnet or an electromagnet, and a permanent magnet is used in this embodiment. Permanent magnets have the advantage of being easy to install and maintain without requiring wiring or the like. On the other hand, since the electromagnet can easily adjust the magnetic force, it is possible to set the adsorption ability of the wear powder mixed in the lubricating oil to a desired value. The magnet 7 is fixed to the inner surface of the oil pan 3 by appropriate means. In the present embodiment, as shown in FIG. 2, the magnet 7 is connected to the oil pan via a fixing plate 7a fixed to the inner surface of the side wall of the oil pan 3 and a support bar 7b extending in the horizontal direction from the fixing plate 7a. 3 is fixed.

  A viewing window 8 is provided in the housing (in this embodiment, the side wall of the oil pan 3). In the present embodiment, a viewing window 8 is provided at the same height as the magnet 7 on the side wall of the oil pan 3. The magnet 7 provided in the oil pan 3 can be visually recognized from the observation window 8. As shown in FIG. 2, the observation window 8 includes a frame 8a fixed to the oil pan 3 and a transmission member 8b fixed to the inside of the frame 8a and formed of a transparent material such as glass. Note that the position of the observation window 8 is not limited to the above as long as the magnet 7 can be visually recognized from the outside, and may be provided at the bottom of the oil pan 3, for example.

  If the sliding state of the sliding parts such as bearings and gears provided in the engine block 2 is good, the abrasion powder hardly adheres to the magnet 7. On the other hand, if the sliding state of the sliding component deteriorates for some reason and abnormal wear occurs on the sliding component, a lot of wear powder adheres to the magnet 7. In the present invention, since the magnet 7 can be visually recognized from the outside through the observation window 8 as described above, whether or not the wear powder is attached to the magnet 7 or the amount of wear powder attached is easily confirmed. Thus, the sliding state of the sliding component can be checked. Note that the magnet 7 may have a color (for example, white) different from the material of the sliding component in order to easily identify the presence or absence of wear powder adhesion.

  The present invention is not limited to the above embodiment. Hereinafter, although other embodiment of this invention is described, the same code | symbol is attached | subjected to the location which has the function similar to said embodiment, and description is abbreviate | omitted.

  In the embodiment shown in FIG. 3, the magnet 7 and the observation window 8 are integrated. Specifically, the magnet 7 is fixed to the frame 8a of the observation window 8 via a support bar 7b. Thereby, since the magnet 7 and the observation window can be fixed to the oil pan 3 at the same time, the mounting operation can be simplified.

  In the embodiment shown in FIG. 4, the closing plug 6 is formed of a magnet 7. Specifically, the bolt as the closure plug 6 includes a head portion 6 a and a screw portion 6 b, and at least a tip portion of the screw portion 6 b is formed by the magnet 7. In the present embodiment, the entire closure plug 6 is formed of a magnet 7. Thereby, compared with the case where the obstruction | occlusion stopper 6 and the magnet 7 are formed in a different body like said embodiment, a number of parts and an installation man-hour can be reduced.

  In the embodiment shown in FIG. 5, a light window 9 for taking light into the oil pan 3 is provided. Thereby, since the magnet 7 can be illuminated through the light window 9 by the light L (natural light or the light of a lighting fixture) from the outside, the presence or absence of the abrasion powder to the magnet 7 can be confirmed easily. it can. In the illustrated example, the observation window 8 and the light window 9 are respectively provided on different side walls of the oil pan 3, and the direction in which the operator visually recognizes the magnet 7 through the observation window 8 (the direction perpendicular to the paper surface of FIG. 5), The direction (left-right direction in FIG. 5) in which the light L is applied to the magnet 7 through the observation window intersects (substantially orthogonal in the horizontal direction in the illustrated example). The light window 9 does not necessarily have to be provided at the same height as the magnet 7 as described above. For example, if the light window 9 is provided at a position higher than the magnet 7, the light from above is provided inside the oil pan 3. Easy to incorporate.

  In the embodiment shown in FIG. 6, the illumination member 10 is provided inside the oil pan 3. With the light of the illumination member 10, it is possible to easily confirm whether or not the wear powder adheres to the magnet 7. In the illustrated example, the blocking plug 6 is formed of a magnet 7, and the illumination member 10 is provided at the tip of the screw portion 6 b of the blocking plug 6. Thus, by providing the illumination member 10 directly on the closing plug 6, the magnet 7 (closing plug) can be reliably illuminated. Further, since the wiring 11 of the illumination member 10 can be supplied through the inside of the closing plug 6, it is not necessary to provide a separate hole in the oil pan 3 for the wiring 11.

  In the above embodiment, although the magnet 7 is provided in the position which contacts the lubricating oil P of the oil storage chamber 4, if it is a position which contacts the lubricating oil inside the engine 1, it will not be restricted to this. For example, the magnet 7 may be disposed in an oil passage through which the lubricating oil flows inside the engine block 2 (not shown).

  Moreover, in the above embodiment, although the case where the mechanical device which concerns on this invention is the engine 1 is shown, it is not restricted to this, For example, applying this invention to the bearing support apparatus 20 as shown in FIG. Can do. The bearing support device 20 includes a bearing 21 that supports the rotating shaft S and a housing 22 that holds the bearing 21 therein. An oil storage chamber 4 for storing the lubricating oil P is provided inside the housing 22. A magnet 7 is provided inside the housing 22, and in the illustrated example, a discharge port 5 is provided through the housing 22, and a closing plug 6 that closes the discharge port 5 is formed by the magnet 7. The distal end portion of the closing plug 6 contacts the lubricating oil P in the oil storage chamber 4. The housing 22 is provided with a viewing window 8 for visually recognizing the closing plug 6 from the outside.

  In addition, although illustration is omitted, the present invention can also be applied to a reduction gear (for example, an automobile transmission).

DESCRIPTION OF SYMBOLS 1 Engine 2 Engine main body 3 Oil pan 4 Oil storage chamber 5 Outlet 6 Closure plug 7 Magnet 8 Peep window 9 Light window 10 Illumination member 20 Bearing support device 21 Bearing 22 Housing P Lubricating oil S Rotating shaft

Claims (10)

A housing, a sliding component disposed inside the housing, a lubricating oil which is held inside the housing and lubricates the sliding component, and a position in contact with the lubricating oil inside the housing; A mechanical device comprising a magnet,
A mechanical device, wherein a viewing window is provided at a position in the housing where the magnet can be visually recognized from the outside.   The mechanical device according to claim 1, wherein the magnet and the observation window are integrated.   The mechanical device according to claim 1, further comprising an oil storage chamber that stores the lubricating oil, and a magnet disposed in the oil storage chamber.   The mechanical device according to claim 3, wherein a discharge port for discharging the lubricating oil from the oil storage chamber and a closing plug for closing the discharge port are provided, and the closing plug is formed by the magnet.   The mechanical device according to claim 1, further comprising a light window for taking in light inside the housing.   The mechanical device according to claim 1, wherein an illumination member is provided inside the housing.   The mechanical device according to claim 6, wherein an illumination member is provided on the closing plug.   The engine as a mechanical apparatus in any one of Claims 1-7.   The bearing support apparatus as a mechanical apparatus in any one of Claims 1-7.   A speed reducer as a mechanical device according to claim 1.

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