CN219655807U - Oil adding and discharging switching device for bearing box - Google Patents

Abstract

The utility model discloses a bearing box oil adding and discharging switching device, which comprises a bearing box, a column pipe, an oil discharging tail pipe and a connecting rod, wherein the bearing box is provided with an oil filling port and an oil discharging port; the peripheral wall of the column tube is provided with an oil guide port, and the lower end of the column tube is provided with a sealing element; one end of the oil drain pipe is connected with the oil drain port, the other end of the oil drain pipe is connected with the oil guide port, the oil drain tail pipe is arranged in the lower end of the column pipe in a penetrating way, the upper end of the oil drain tail pipe penetrates through the sealing piece, and the upper end of the oil drain tail pipe is provided with an oil outlet; the connecting rod is arranged in the column tube in a penetrating way and can drive the oil discharging tail tube to switch between a first position and a second position; when the oil discharging tail pipe is located at the first position, the oil outlet is located in the sealing piece, the sealing piece blocks the oil outlet from being communicated with the column pipe, when the oil discharging tail pipe is located at the second position, the oil outlet is located in the column pipe, and the oil outlet is communicated with the column pipe, so that oil in the column pipe enters the oil discharging tail pipe through the oil outlet and is discharged. The utility model greatly improves the safety and convenience of oil discharging operation.

Description

Oil adding and discharging switching device for bearing box

Technical Field

The utility model relates to a bearing box, in particular to a device for switching oil filling and discharging of the bearing box.

Background

The large-scale generator set is one of important equipment of the offshore drilling and production platform, and the running stability and the service life of the large-scale generator set directly influence the power supply quality and the reliability of the offshore drilling and production platform. In order to ensure the normal operation of the generator set, the bearings at the two ends of the generator set need to be replaced with lubricating oil every preset time so as to ensure the normal working state of the bearings, and the common appointed time is 3000 hours. And each time the bearings at the two ends of the generator set are filled with or replaced with new oil, the oil is required to be sampled, and the like.

At present, operations such as oil sampling or oil discharging need to be removed and protecting covers, oil discharging holes are formed in the bottom of a bearing box, the space is narrow, operators need to climb to the bottom of the bearing box and lie on the floor to remove plugs of the oil discharging holes, and the oil is collected by a low oil box. In this process, personnel need lie and operate on ground, when the plug is opened, operating personnel come not to withdraw, causes fluid to splash on operating personnel directly easily, in addition, crawl in narrow and small space also easily and cause the scratch, the latter contacts with uncooled organism, probably causes risks such as scalding, therefore, not only difficult operation, inefficiency still has very big potential safety hazard.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent. Therefore, the utility model aims to provide a bearing box oil adding and discharging switching device.

In order to achieve the above object, a bearing housing oil charging/discharging switching device according to an embodiment of the present utility model includes:

the top of the bearing box is provided with an oil filling port, and the bottom of the bearing box is provided with an oil discharging port;

the column tube is fixed relative to the bearing box and extends vertically, an oil guide port is formed in the peripheral wall of the column tube, and a sealing piece is arranged at the lower end of the column tube;

one end of the oil drain pipe is connected with the oil drain port, and the other end of the oil drain pipe is connected with the oil guide port and used for guiding oil discharged from the oil drain port into the column pipe;

the oil discharging tail pipe is penetrated in the lower end of the column pipe, the upper end of the oil discharging tail pipe penetrates through the sealing piece to form a seal between the sealing piece and the column pipe, and an oil outlet is formed in the upper end of the oil discharging tail pipe;

the connecting rod is arranged in the column tube in a penetrating way, the lower end of the connecting rod is connected with the oil discharging tail tube, and the upper end of the connecting rod extends out of the upper end of the column tube so as to be operated by a user to drive the oil discharging tail tube to switch between a first position and a second position;

when the oil discharging tail pipe is located at a first position, the oil outlet is located in the sealing piece, the sealing piece blocks the oil outlet from being communicated with the column pipe, when the oil discharging tail pipe is located at a second position, the oil outlet is located in the column pipe, the oil outlet is communicated with the column pipe, and oil in the column pipe enters the oil discharging tail pipe through the oil outlet and is discharged.

According to the bearing box oil adding and discharging switching device provided by the embodiment of the utility model, the oil discharging tail pipe can be enabled to ascend to the second position through the operation connecting rod, at the moment, the oil outlet is positioned in the column pipe and is communicated with the column pipe, so that oil discharged by the oil discharging pipe can enter the oil discharging tail pipe from the oil outlet through the lower end of the column pipe and then is discharged from the oil discharging tail pipe.

In addition, the bearing housing oil filling and draining switching device according to the above embodiment of the present utility model may further have the following additional technical features:

according to one embodiment of the utility model, the oil drain liner further comprises an elastic member arranged between the bottom of the column tube and the oil drain liner for providing a downward elastic force to force the oil drain liner to be always kept at the first position.

According to one embodiment of the utility model, the seal comprises:

the lower end cover is connected to the bottom of the column tube in a sealing way;

the sealing ring is fixed in the lower end cover, the sealing ring is sleeved outside the oil discharging tail pipe, and when the oil discharging tail pipe is positioned at the first position, the oil outlet is plugged by the sealing ring.

According to one embodiment of the utility model, the oil drainage device further comprises an elastic sealing rubber plug which is positioned in the column tube, wherein the elastic sealing rubber plug is arranged on the oil drainage tail tube and is positioned above the oil outlet hole;

when the oil discharging tail pipe is positioned at the first position, the elastic sealing rubber plug is positioned below the oil guide port and is sealed with the inner wall of the column pipe, and when the oil discharging tail pipe is positioned at the second position, the elastic sealing rubber plug is positioned above the oil guide port and is sealed with the inner wall of the column pipe.

According to one embodiment of the utility model, the lower end of the oil discharging tail pipe is provided with a stop piece, the elastic piece is a spring, the spring is sleeved on the oil discharging tail pipe, the upper end of the spring abuts against the lower end cover, and the lower end of the spring abuts against the stop piece.

According to one embodiment of the utility model, the upper end of the column tube is provided with an upper end cover, and the upper end of the connecting rod penetrates out of the upper end cover and can slide vertically.

According to one embodiment of the utility model, the upper end of the connecting rod is provided with an operation handle for operating the connecting rod to move vertically.

According to one embodiment of the utility model, the column tube further comprises a communicating pipe, the peripheral wall of the column tube is provided with a communicating port, and the oil filling port is connected with a three-way joint; one end of the communicating pipe is connected with the three-way joint, and the other end of the communicating pipe is connected with the communicating port.

According to one embodiment of the utility model, the column tube is provided with a liquid level observation window for observing the liquid level height in the column tube.

According to one embodiment of the utility model, the oil discharging tail pipe is provided with an oil discharging safety valve.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a prior art generator set;

FIG. 2 is a front view of a bearing housing oil feed/drain switching device according to an embodiment of the present utility model;

FIG. 3 is a side view of a bearing housing oil charge and drain switching device according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view at B in FIG. 3 (tailpipe in a first position);

FIG. 5 is a cross-sectional view at B in FIG. 3 (tailpipe in a second position);

FIG. 6 is a cross-sectional view at A in FIG. 3;

fig. 7 is a schematic structural diagram of a generator set after a bearing housing oil filling and draining switching device according to an embodiment of the present utility model is configured.

Reference numerals:

10. a bearing housing;

h10, oil filler;

h11, an oil drain port;

11. a three-way joint;

20. a column tube;

h20, an oil guide port;

21. a seal;

211. a lower end cap;

212. a seal ring;

22. an upper end cap;

30. an oil drain pipe;

40. an oil discharging tail pipe;

h40, oil outlet holes;

41. elastic sealing rubber plug;

42. a stopper;

43. an oil drain safety valve;

50. a connecting rod;

501. operating a handle;

60. an elastic member;

70. and communicating pipe.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below are exemplary and intended to illustrate the present utility model and should not be construed as limiting the utility model, and all other embodiments, based on the embodiments of the present utility model, which may be obtained by persons of ordinary skill in the art without inventive effort, are within the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following describes in detail a bearing housing oil-filling/draining switching device according to an embodiment of the present utility model with reference to the accompanying drawings.

Referring to fig. 1 to 7, the device for switching between oil supply and oil discharge of a bearing housing 10 according to an embodiment of the present utility model includes a bearing housing 10, a column pipe 20, an oil discharge pipe 30, an oil discharge tail pipe 40, and a connecting rod 50.

Specifically, the top of the bearing housing 10 is provided with an oil filler H10, and the bottom of the bearing housing 10 is provided with an oil drain H11. The oil filler H10 is used to add lubricating oil into the bearing housing 10. And the oil drain port H11 is used to drain the lubricating oil in the bearing housing 10 after a certain period of operation.

The column tube 20 is fixed relative to the bearing housing 10, the column tube 20 extends vertically, an oil guide port H20 is provided on the peripheral wall of the column tube 20, and a sealing member 21 is provided at the lower end of the column tube 20. The column tube 20 is typically made of a metallic material, such as a steel tube, an alloy tube, etc., and has certain strength and corrosion resistance.

One end of the oil drain pipe 30 is connected to the oil drain port H11, and the other end of the oil drain pipe 30 is connected to the oil guide port H20, so as to guide the oil discharged from the oil drain port H11 into the column pipe 20. The oil drain pipe 30 is usually made of metal materials such as steel pipes, and has certain strength and corrosion resistance. One end of the oil drain pipe 30 is connected to the oil drain port H11, for example, by a screw or the like, and the other end of the oil drain pipe 30 is connected to the column pipe 20, for example, by welding, or by a screw or the like, or is formed as an integral structure with the column pipe 20. The oil in the bearing housing 10 may enter the column tube 20 through the oil drain tube 30.

The oil discharging tail pipe 40 is inserted into the lower end of the column pipe 20, the upper end of the oil discharging tail pipe passes through the sealing piece 21 to form a seal between the sealing piece 21 and the column pipe 20, and the upper end of the oil discharging tail pipe is provided with an oil outlet H40. The oil discharging tail pipe 40 is also made of metal materials such as steel pipes, has certain strength and corrosion resistance, and has the function of discharging oil in the column tube 20.

The connecting rod 50 is inserted into the pillar 20, and the lower end of the connecting rod 50 is connected with the tailpipe 40, and the upper end of the connecting rod 50 extends out from the upper end of the pillar 20, so that the user can operate to drive the tailpipe 40 to switch between the first position and the second position.

When the oil discharging tail pipe 40 is located at the first position, the oil outlet hole H40 is located in the sealing member 21, the sealing member 21 blocks the oil outlet hole H40 from being communicated with the column pipe 20, when the oil discharging tail pipe 40 is located at the second position, the oil outlet hole H40 is located in the column pipe 20, and the oil outlet hole H40 is communicated with the column pipe 20, so that oil in the column pipe 20 enters the oil discharging tail pipe 40 through the oil outlet hole H40 and is discharged.

That is, the diameter of the link 50 is small, penetrating into the pillar tube 20 from top to bottom, and the lower end of the link 50 is connected to the upper end of the tailpipe 40 (the upper end is located in the lower end of the pillar tube 20), the upper end of the link 50 generally extends to the top of the bearing housing 10, and the operator can operate the link 50 to move up and down through the upper end of the link 50, thereby driving the tailpipe 40 to switch between the first position and the second position.

Specifically, when the link 50 is pressed down to the lower limit position, it is the first position. In the first position, the part of the oil outlet H40 at the upper end of the tail pipe 40 is hidden in the sealing member 21, and the sealing member 21 seals the oil outlet H40, so that the inner space at the lower end of the pillar 20 cannot be communicated with the oil outlet H40. The oil in the column pipe 20 cannot enter the oil outlet H40 and cannot be discharged through the tail pipe 40. Thus, in the first position, the space between the tailpipe 40 and the column pipe 20 is blocked, and if lubrication oil needs to be added to the bearing housing 10, the lubrication oil can be added to the inside of the bearing housing 10 through the oil filler H10 at the top of the bearing housing 10, and the excessive lubrication oil can enter the column pipe 20 from the oil drain pipe 30, and the column pipe 20 and the tailpipe 40 are not communicated, so that the excessive lubrication oil is stored in the column pipe 20.

When the connecting rod 50 is lifted up to the upper limit position, namely, the oil discharging tail pipe 40 is at the second position, in the second position, the oil outlet hole H40 at the upper end of the oil discharging tail pipe 40 slides upwards along with the oil discharging tail pipe 40 and moves out of the sealing piece 21, at this time, the oil outlet hole H40 is positioned in the inner space at the lower end of the column pipe 20, then the inner space at the lower end of the column pipe 20 is communicated with the oil discharging tail pipe 40 through the oil outlet hole H40, namely, in the second position, the column pipe 20 is in a communicated state with the oil discharging tail pipe 40, so that the oil in the column pipe 20 can enter the oil outlet hole H40 and enter the middle oil discharging tail pipe 40 from the oil outlet hole H40, and the oil is discharged from the oil discharging tail pipe 40.

Therefore, in a specific use, when the operator needs to sample or change oil in the bearing housing 10 according to a predetermined time limit requirement, the upper end of the connecting rod 50 is operated to lift the connecting rod 50 up to the second position, so that the inner cavity of the lower end of the column tube 20 and the oil discharging tail tube 40 form a communication state, and the oil in the bearing housing 10 enters the column tube 20 through the oil discharging tube 30, enters the oil discharging tail tube 40 from the column tube 20 through the oil outlet H40, and finally is discharged from the oil discharging tail tube 40. After the oil is discharged, the upper end of the connecting rod 50 can be operated, the connecting rod 50 is reset to the first position, so that the inner cavity of the lower end of the column tube 20 and the oil discharging tail tube 40 are switched to a blocking state, the oil in the bearing box 10 cannot be discharged, and at this time, new lubricating oil is added into the bearing box 10 from the oil filling port H10 at the top of the bearing box 10.

According to the oil adding and discharging switching device for the bearing box 10 provided by the embodiment of the utility model, the oil discharging tail pipe 40 can be enabled to ascend to the second position by operating the connecting rod 50, at the moment, the oil outlet H40 is positioned in the column pipe 20 and is communicated with the column pipe 20, so that the oil discharged by the oil discharging pipe 30 can enter the oil discharging tail pipe 40 from the oil outlet H40 through the lower end of the column pipe 20 and then is discharged from the oil discharging tail pipe 40.

Referring to fig. 4 to 5, in one embodiment of the present utility model, an elastic member 60 is further included, and the elastic member 60 is disposed between the bottom of the pillar tube 20 and the tailpipe 40 to provide a downward elastic force to force the tailpipe to be always maintained in the first position.

That is, in the present embodiment, an elastic member 60 is provided between the bottom of the pillar tube 20 and the tailpipe 40 to provide a downward elastic force to force the tailpipe 40 to be always kept at the first position, and the tailpipe 40 is kept at the first position without intervention of other external forces.

When the link 50 is pulled upward by the link 50 such that the tailpipe 40 is shifted to the second position, the elastic member 60 is compressed, storing a certain elastic energy. When the connecting rod 50 is released, the elastic member 60 can press the tail pipe 40 back to the first position by its elastic force, so that the inner space at the lower end of the pillar tube 20 cannot be communicated to the oil outlet H40, thereby realizing quick return to the blocking state.

The elastic member 60 in this embodiment is configured to ensure that the tail pipe 40 is always in a blocking state when no other external force is interposed, so that the problem of leakage of oil discharged from the oil outlet H40 under unnecessary conditions is avoided. Meanwhile, since the elastic member 60 provides a downward elastic force, an operator can rapidly realize switching between the communication state and the blocking state, thereby ensuring reliability and convenience of operation.

Referring to fig. 4 to 5, in one embodiment of the present utility model, the sealing member 21 includes a lower cap 211 and a sealing ring 212, and the lower cap 211 is sealingly coupled to the bottom of the vial 20. The sealing ring 212 is fixed in the lower end cover 211, and the sealing ring 212 is sleeved outside the oil discharging tail pipe, when the oil discharging tail pipe 40 is positioned at the first position, the oil outlet H40 is blocked by the sealing ring 212.

In the present embodiment, the seal member 21 is mainly composed of a lower end cap 211 and a seal ring 212. The lower cap 211 is hermetically coupled to the bottom of the column tube 20, for example, by welding, screwing, etc., for closing the inner space of the lower end of the column tube 20 to ensure that oil cannot enter or exit from this location.

The seal ring 212 is fixed in the lower end cap 211, the seal ring 212 is tightly sleeved outside the tail pipe 40, and the oil outlet H40 can be completely blocked when the tail pipe 40 is at the first position. This ensures that oil cannot enter the tailpipe 40 from the oil outlet H40 without moving the tailpipe 40 upward.

When the connecting rod 50 lifts the tail pipe 40 upwards, the sealing ring 212 does not move upwards along with the tail pipe 40, so that the oil outlet H40 is removed from the sealing of the sealing ring 212 to form a communication passage, and oil can enter the tail pipe 40 from the lower end of the column tube 20 and then be discharged through the tail pipe 40. When the connecting rod 50 is released, the elastic force of the elastic member 60 will press the tail pipe 40 back to the first position, so as to get into the sealing ring 212 again to seal the oil outlet H40, and prevent the oil leakage. Therefore, in the present embodiment, the design of the seal member 21 can effectively and reliably realize the blocking of the oil outlet hole H40, thereby ensuring the stability and reliability of the device.

Referring to fig. 4 to 5, in one embodiment of the present utility model, the apparatus further includes an elastic sealing rubber stopper 41 located in the column tube 20, the elastic sealing rubber stopper 41 being disposed on the tail pipe 40 and above the oil outlet hole H40.

When the tail pipe 40 is located at the first position, the elastic sealing rubber plug 41 is located below the oil guide port H20 and seals with the inner wall of the column pipe 20. At this time, the oil drain pipe 30 is completely communicated with the upper space of the column pipe 20, and is completely blocked from the space at the lower end of the column pipe 20, when the lubricating oil is supplied into the bearing box 10 through the oil filling port H10 at the top of the bearing box 10, the excessive lubricating oil enters the column pipe 20 from the oil drain pipe 30, and when the lubricating oil in the bearing box 10 is reduced, the excessive lubricating oil automatically flows back and is supplied into the bearing box 10, so that the bearing box 10 is ensured to be filled with sufficient lubricating oil.

When the tail pipe 40 is located at the second position, the elastic sealing rubber plug 41 is located above the oil guiding port H20 and seals with the inner wall of the column pipe 20. At this time, the oil drain pipe 30 is completely blocked from the upper space of the column pipe 20 and is completely communicated with the space of the lower end of the column pipe 20, and the oil in the bearing housing 10 can enter the column pipe 20 through the oil drain pipe 30 and then enter the oil drain pipe 40 from the column pipe 20 and be discharged. In this process, since the upper space of the pillar 20 is blocked, the excessive and clean oil remaining in the upper portion of the pillar 20 is not discharged, and the waste of oil is reduced.

In this embodiment, the oil control is achieved when the tailpipe 40 is located at a different position by using the elastic sealing rubber plug 41 located in the column pipe 20. When the oil discharging tail pipe 40 is positioned at the first position, the upper part space of the column pipe 20 is communicated with the oil discharging pipe 30, so that automatic reflux and replenishment of oil are realized; when the tailpipe 40 is in the second position, the upper space of the column pipe 20 is blocked, thereby realizing control of oil discharge while avoiding waste of clean oil.

Advantageously, the column 20 is provided with a level viewing window for viewing the level of the liquid in said column 20. When the operator needs to know the liquid level of the oil in the column tube 20, the operator can directly observe the oil through the observation window. When the oil liquid amount is found to be too small or the oil liquid quality is poor, operators can take corresponding measures in time to replace or add the oil liquid, so that the normal operation of the equipment is ensured.

For the installation of convenient elastic component 60, be equipped with the fender piece 42 at the lower extreme of oil discharge tail pipe, elastic component 60 is the spring, the spring housing is established on the oil discharge tail pipe 40, just the upper end of spring with lower extreme 211 offsets, the lower extreme of spring with fender piece 42 offsets, so, can ensure that the spring can support between lower extreme 211 and fender piece 42, and then when guaranteeing that operating link 50 is upwards pulled, the spring can reliable compression, when needs to resume to the first position, can lean on the elastic force quick return of spring, has guaranteed reliability and the stability of restoring.

Preferably, the stop member 42 can be configured as a handle-like structure, and in some special cases, when an operator is at the bottom of the bearing housing 10, the operator can push the connecting rod 50 and the oil discharging tail pipe 40 to move upwards through the handle-like structure to perform oil discharging operation, so that the oil discharging operation under special cases is satisfied, and the use is more flexible and convenient.

Illustratively, the upper end of the column tube 20 is provided with an upper end cover 22, and the upper end of the connecting rod 50 is penetrated out from the upper end cover 22 and is vertically slidable, so that the connecting rod 50 is conveniently kept coaxially arranged with the column tube 20, and can stably and reliably slide up and down, and the switching between the first position and the second position is ensured to be more stable and reliable.

Preferably, an operation handle 501 is provided at an upper end of the link 50 to operate the link 50 to move vertically. When adjustment of the link 50 is desired, an operator can move the link 50 vertically by manipulating the handle 501. Because the upper end of the connecting rod 50 can freely slide, and the design of the operating handle 501 is reasonable, an operator can easily move the connecting rod 50 to a required position, thereby achieving a required working effect.

Referring to fig. 3 and 6, in one embodiment of the present utility model, the apparatus further comprises a communication pipe 70, a communication port is provided on the peripheral wall of the column pipe 20, and the fuel filler port H10 is connected with a three-way joint 11; one end of the communication pipe 70 is connected to the three-way joint 11, and the other end of the communication pipe 70 is connected to the communication port. The communication pipe 70 is also generally made of a metal material such as steel pipe.

In this embodiment, on one hand, the communicating pipe 70 communicates the oil filling port H10 with the pillar tube 20 to form a closed loop, so that the oil can fill the whole bearing housing 10 conveniently, and on the other hand, after the communicating pipe 70 and the oil drain pipe 30 are connected to the pillar tube 20, the pillar tube 20 and the bearing housing 10 can be fixed relatively without configuring additional fixing measures, and the structure is simpler.

Advantageously, the oil discharging tail pipe is provided with an oil discharging safety valve 43, and the oil discharging safety valve 43 can be closed in the normal operation time period, so that a safer protection effect is achieved.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. The utility model provides a bearing box adds oil drain switching device which characterized in that includes:

the top of the bearing box is provided with an oil filling port, and the bottom of the bearing box is provided with an oil discharging port;

the column tube is fixed relative to the bearing box and extends vertically, an oil guide port is formed in the peripheral wall of the column tube, and a sealing piece is arranged at the lower end of the column tube;

one end of the oil drain pipe is connected with the oil drain port, and the other end of the oil drain pipe is connected with the oil guide port and used for guiding oil discharged from the oil drain port into the column pipe;

the oil discharging tail pipe penetrates through the lower end of the column pipe, the upper end of the oil discharging tail pipe penetrates through the sealing piece to form a seal between the sealing piece and the column pipe, and an oil outlet is formed in the upper end of the oil discharging tail pipe;

the connecting rod is arranged in the column tube in a penetrating way, the lower end of the connecting rod is connected with the oil discharging tail tube, and the upper end of the connecting rod extends out of the upper end of the column tube so as to be operated by a user to drive the oil discharging tail tube to switch between a first position and a second position;

when the oil discharging tail pipe is located at a first position, the oil outlet is located in the sealing piece, the sealing piece blocks the oil outlet from being communicated with the column pipe, when the oil discharging tail pipe is located at a second position, the oil outlet is located in the column pipe, the oil outlet is communicated with the column pipe, and oil in the column pipe enters the oil discharging tail pipe through the oil outlet and is discharged.

2. The bearing housing load and drain switching device of claim 1, further comprising an elastic member disposed between the bottom of the post and the drain liner to provide a downward elastic force to urge the drain liner to remain in the first position.

3. The bearing housing oil feed/discharge switching device according to claim 2, wherein the seal member includes:

the lower end cover is connected to the bottom of the column tube in a sealing way;

the sealing ring is fixed in the lower end cover, the sealing ring is sleeved outside the oil discharging tail pipe, and when the oil discharging tail pipe is positioned at the first position, the oil outlet is plugged by the sealing ring.

4. The bearing housing oil adding and draining switching device according to claim 1, further comprising an elastic sealing rubber plug positioned in the column tube, wherein the elastic sealing rubber plug is arranged on the oil draining tail tube and positioned above the oil outlet hole;

when the oil discharging tail pipe is positioned at the first position, the elastic sealing rubber plug is positioned below the oil guide port and is sealed with the inner wall of the column pipe, and when the oil discharging tail pipe is positioned at the second position, the elastic sealing rubber plug is positioned above the oil guide port and is sealed with the inner wall of the column pipe.

5. The oil adding and discharging switching device for the bearing box according to claim 3, wherein a stop member is arranged at the lower end of the oil discharging tail pipe, the elastic member is a spring, the spring is sleeved on the oil discharging tail pipe, the upper end of the spring abuts against the lower end cover, and the lower end of the spring abuts against the stop member.

6. The oil adding/discharging switching device for bearing housing according to claim 1, wherein an upper end cap is provided at an upper end of the column tube, and an upper end of the connecting rod is penetrated from the upper end cap and is vertically slidable.

7. A bearing housing oil feed/discharge switching apparatus according to claim 3, wherein an operation handle is provided at an upper end of the link rod for operating the link rod to move vertically.

8. The bearing box oil adding and draining switching device according to claim 1, further comprising a communicating pipe, wherein a communication port is arranged on the peripheral wall of the column pipe, and the oil filling port is connected with a three-way joint; one end of the communicating pipe is connected with the three-way joint, and the other end of the communicating pipe is connected with the communicating port.

9. The oil adding/discharging switching device for bearing housing according to claim 1, wherein a liquid level observation window is provided on the column tube for observing the liquid level height in the column tube.

10. The bearing housing oil adding and draining switching device according to claim 1, wherein an oil draining safety valve is arranged on the oil draining tail pipe.