CN206517202U - It is a kind of to discharge the bearing chamber of excess oil automatically - Google Patents

Abstract

Can discharge the bearing chamber of excess oil automatically the utility model discloses a kind of, solve and clear up the inconvenience of outmoded grease in the prior art, it is necessary to dismantle bearing chamber assembling, and it is simple in construction complicated the problem of.The utility model includes bearing block and outer bearing cover, both cooperatively form the bearing chamber inner chamber that bearing is fixedly mounted, bearing chamber inner chamber is collectively forming a confined space with the rotating shaft that same bearing is engaged, the lubricating cup that confined space is used to add grease to confined space is communicated with the top of outer bearing cover, outer bearing cover lower inside is provided with the grease accumulation chamber connected with confined space for accommodating grease with bearing block touching position, outer bearing cover bottom is provided with the screw through outer bearing cover, screw the inner is connected with grease accumulation chamber, outer end is provided with the grease automatic releasing device positioned at outer bearing cover bottom outside.The utility model design science, it is simple in construction, excess oil can be discharged automatically, it is ensured that oil quality, it is ensured that the service life of bearing.

Description

It is a kind of to discharge the bearing chamber of excess oil automatically

Technical field

The utility model belongs to field of mechanical technique, and in particular to a kind of to discharge the bearing chamber of excess oil automatically.

Background technology

Bearing chamber is the important feature of the rotating machinery of all kinds of use rolling bearings.Bearing chamber is not only positioned, fixing bearing, A good sealing structure also is provided for bearing, prevents extraneous dust, foreign matter from entering bearing chamber, while preventing in bearing chamber Lubricant grease is leaked.For the purpose of maintaining, part rotating machinery needs that grease is passed through into oil in the case where not disintegrating Cup is injected into inside bearing chamber.In the prior art, bearing chamber has two kinds of structures to accommodate the grease injected.One is to set larger capacity Cavity, to accommodate the grease constantly filled；Another is to set special to deposit fat space on bearing chamber.

Many greases of sauce was filled, or mechanical long-play occurs that oil quality declines, and causes bearing temperature rise higher than normal The problem of level, influence bearing life.Therefore need to clear up outmoded grease to ensure the normal operation of bearing.It is larger for setting The bearing chamber of the cavity of capacity needs dismounting bearing chamber assembling, could take out outmoded grease, and add the axial length of machinery. For setting the special bearing chamber for depositing fat space, fat structure is generally deposited to realize using casting or welding, Existential Space structure Complexity, manufacturing cost is high, and need periodically to uncap fixed cleaning outmoded grease the problem of.

Therefore a kind of bearing chamber structure, the outmoded grease of easy cleaning, without dismantling bearing chamber assembling, and structure letter are provided It is single, become those skilled in the art's urgent problem to be solved.

Utility model content

The technical problems to be solved in the utility model is：Offer is a kind of can to discharge the bearing chamber of excess oil, solution automatically The inconvenience of outmoded grease is certainly cleared up in the prior art, it is necessary to dismantle bearing chamber assembling, and it is simple in construction complicated the problem of.

To achieve the above object, the technical solution adopted in the utility model is as follows：

A kind of to discharge the bearing chamber of excess oil automatically, for bearing to be fixedly mounted, the bearing chamber includes bearing block With the outer bearing cover being detachably connected with bearing block, bearing block and outer bearing cover are cooperatively formed and are fixedly mounted in the bearing chamber of bearing Chamber, bearing chamber inner chamber is collectively forming a confined space with the rotating shaft that same bearing is engaged, and outer bearing cover top is communicated with close Close the lubricating cup that space is used to add grease to confined space, outer bearing cover lower inside and bearing block touching position provided with it is closed Space connects the grease accumulation chamber for accommodating grease, and outer bearing cover bottom is provided with the screw through outer bearing cover, and screw is inner Connected with grease accumulation chamber, outer end is provided with the grease automatic releasing device positioned at outer bearing cover bottom outside.

Further, grease automatic releasing device includes valve body, bead, spring and adjusting screw, and valve body is in bolt shape Shape, including cylinder and the hexagon-head that is solidified as a whole with cylindrical member at one end, cylinder periphery, which is provided with, to be used to valve body being arranged on External screw thread on screw, valve inner is axially arranged with circle hole shape discharge-channel, and the cylinder other end is offered to be connected with discharge-channel Logical circle hole shape discharge-channel entrance, the discharge-channel that hexagon-head radially offers more than one and connected with discharge-channel goes out Mouthful, adjusting screw axial periphery is provided with screw external screw thread, inside hexagon-head provided with connected with discharge-channel and with outside screw The screwed hole that screw thread is engaged, the diameter of discharge-channel entrance, bead and discharge-channel is incremented by successively, and bead is located at discharge Feeder connection is connected place with discharge-channel, and spring is located in discharge-channel and one end is contacted with bead, and adjusting screw is positioned at spiral shell In pit and the inner and another end in contact of spring, spring is in compressive state and pushing against bead makes bead closely block discharge-channel Entrance.

Further, the rotating shaft and bearing block touching position, which are provided with, is used for sealed oil sealing.

Further, discharge-channel outlet is two, and is symmetrically distributed in six using hexagon-head central axis as line of symmetry On angle head.

Further, the diameter of discharge-channel outlet is less than the diameter of discharge-channel.

Compared with prior art, the utility model has the advantages that：

The utility model design science, it is simple in construction, excess oil can be discharged automatically, it is ensured that oil quality, it is ensured that bearing Service life.

The utility model, by setting shafting oil fat accumulation chamber and grease automatic releasing device, can will many when grease is excessive Excess oil fat is automatically discharged into outside bearing room, it is ensured that the reasonable oil quantity in bearing chamber, is conducive to bearing to reach that it is normally used In the life-span, improve the reliability of bearing.When oil quality declines, by injecting excessive new grease, outmoded grease is discharged, to protect Demonstrate,prove oil quality.

The utility model is simple in construction, easy to operate, the dismounting without carrying out bearing chamber assembling, reduces the maintenance of machinery The amount of labour.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 thinks figure for the structural representation of the utility model grease automatic releasing device.

Fig. 3 is the utility model grease automatic releasing device hexagon-head outer face view.

Wherein, reference is corresponding entitled：

1- bearing blocks, 2- outer bearing covers, 3- bearings, 4- rotating shafts, 5- lubricating cups, 6- grease accumulation chambers, 7- screws, 8- greases are certainly Dynamic release device, 81- valve bodies, 82- beads, 83- springs, 84- adjusting screws, 85- cylinders, 86- hexagon-heads, 87- discharges Passage, 88- discharge-channel entrances, the outlet of 89- discharge-channels, 9- oil sealings.

Embodiment

The utility model is described in further detail with embodiment for explanation below in conjunction with the accompanying drawings, and mode of the present utility model includes But it is not limited only to following examples.

Embodiment

As Figure 1-3, it is a kind of to discharge the bearing chamber of excess oil, for bearing 3 to be fixedly mounted, the axle automatically Holding room includes bearing block 1 and the outer bearing cover 2 being detachably connected with bearing block 1, and the bearing block 1 and outer bearing cover 2 coordinate shape Into the bearing chamber inner chamber that bearing 3 is fixedly mounted, the rotating shaft 4 that the bearing chamber inner chamber is engaged with same bearing 3 is collectively forming one Confined space, the top of outer bearing cover 2 is communicated with the lubricating cup 5 that confined space is used to add grease to confined space, described The lower inside of outer bearing cover 2 is provided with the grease accumulation chamber connected with confined space for accommodating grease with the touching position of bearing block 1 6, the bottom of outer bearing cover 2 is provided with the screw 7 through outer bearing cover 2, and described the inner of screw 7 is connected with grease accumulation chamber 6, outside End is provided with the grease automatic releasing device 8 positioned at the bottom outside of outer bearing cover 2.

The grease automatic releasing device 8 includes valve body 81, bead 82, spring 83 and adjusting screw 84, the valve body 81 be in bolt shape, including cylinder 85 and the hexagon-head 86 that is solidified as a whole with the one end of cylinder 85, outside the cylinder 85 It is provided with week inside the external screw thread for being used for being arranged on valve body 81 on screw 7, the valve body 81 and is axially arranged with circle hole shape discharge-channel 87, the other end of cylinder 85 offers the circle hole shape discharge-channel entrance 88 connected with discharge-channel 87, the turret head The discharge-channel outlet 89 that the radial direction of portion 86 offers two and connected with discharge-channel 87, the discharge-channel outlet 89 is with hexagonal The central axis of head 86 is that line of symmetry is symmetrically distributed on hexagon-head 86, and the axial periphery of adjusting screw 84 is provided with outside screw Screw thread, the inside of hexagon-head 86 is provided with the screwed hole for connecting and being engaged with screw external screw thread with discharge-channel 87, row The diameter for putting feeder connection 88, bead 82 and discharge-channel 87 is incremented by successively, and the diameter of the discharge-channel outlet 89 is less than The diameter of discharge-channel 87, the bead 82 is connected place, the spring 83 positioned at discharge-channel entrance 88 with discharge-channel 87 In the discharge-channel 87 and one end is contacted with bead 82, the adjusting screw 84 is located in screwed hole and the inner is another with spring 83 End thereof contacts, the spring 83 is in compressive state and pushing against bead 82 makes bead 82 closely block discharge-channel entrance 88.

The utility model is sealed between rotating shaft 4 and bearing block 1 using oil sealing 9.

In the utility model, new grease positioned at the lubricating cup 5 of the top of outer bearing cover 2 after injecting, with the fortune of rotating shaft 4 Dynamic, old grease can be pressed against in shafting oil fat accumulation chamber 6.Because grease accumulation chamber 6 is away from rotating shaft 4 and bearing 3, and positioned at outer bearing The lowest part of lid 2, is difficult to be stirred into grease herein, is difficult to mix with other greases.

In the utility model, grease automatic releasing device 8 is in normally off, and now extraneous dust, steam can not pass through Release device enters inside bearing chamber.Spring 83 now is in compressive state, and bead 82 is under the effect of the pressure of spring 83, with row Put feeder connection 88 to be in close contact, the grease of the attachment nearby of bead 82 can strengthen sealing effectiveness.The pressure of spring 83 is by its rigidity Determined with decrement.If grease is excessive in bearing chamber, after mechanical movement, the increase of bearing chamber internal pressure.Pressed inside bearing chamber When power is more than setting pressure, automatic releasing device 8 can be in open state, and grease will promote bead 82 to move, and now grease enters Enter discharge-channel 87, discharged from discharge-channel outlet 89.When bearing room pressure reduces, bead will come back to initial bit Put, grease automatic releasing device 8 recovers closed mode.

The utility model can change the pre compressed magnitude of spring 83 by tightening or unscrewing adjusting screw 84, reach change The purpose of operating pressure.

Above-described embodiment is only one of preferred embodiment of the present utility model, be should not be taken to limit of the present utility model Protection domain, as long as body design thought of the present utility model and mentally make have no the change of essential meaning or profit Color, the technical problem that it is solved is still consistent with the utility model, should be included in protection domain of the present utility model Within.

Claims (5)

1. a kind of can discharge the bearing chamber of excess oil automatically, for bearing (3) to be fixedly mounted, it is characterised in that：Including axle Bearing (1) and the outer bearing cover (2) being detachably connected with bearing block (1), the bearing block (1) and outer bearing cover (2) coordinate shape Into the bearing chamber inner chamber that bearing (3) is fixedly mounted, the common shape of rotating shaft (4) that the bearing chamber inner chamber is engaged with same bearing (3) Into a confined space, the oil that confined space is used to add grease to confined space is communicated with the top of the outer bearing cover (2) Cup (5), outer bearing cover (2) lower inside is provided with bearing block (1) touching position and connected with confined space for accommodating oil The grease accumulation chamber (6) of fat, outer bearing cover (2) bottom is provided with the screw (7) through outer bearing cover (2), the screw (7) The inner is connected with grease accumulation chamber (6), and outer end is provided with the grease automatic releasing device positioned at outer bearing cover (2) bottom outside (8)。

2. according to claim 1 a kind of the bearing chamber of excess oil can be discharged automatically, it is characterised in that：The grease Automatic releasing device (8) includes valve body (81), bead (82), spring (83) and adjusting screw (84), and the valve body (81) is in Bolt shape, including cylinder (85) and the hexagon-head (86) that is solidified as a whole with cylinder (85) one end, the cylinder (85) periphery, which is provided with inside the external screw thread for being used for being arranged on valve body (81) on screw (7), the valve body (81), is axially arranged with circle Hole shape discharge-channel (87), cylinder (85) other end offers the circle hole shape discharge-channel connected with discharge-channel (87) Entrance (88), the discharge-channel outlet that the hexagon-head (86) radially offers more than one and connected with discharge-channel (87) (89), adjusting screw (84) axial periphery, which is provided with inside screw external screw thread, the hexagon-head (86), is provided with logical with discharge The screwed hole that road (87) is connected and is engaged with screw external screw thread, discharge-channel entrance (88), bead (82) and discharge are logical The diameter in road (87) is incremented by successively, and the bead (82) is connected place positioned at discharge-channel entrance (88) with discharge-channel (87), The spring (83) is located in discharge-channel (87) and one end is contacted with bead (82), and the adjusting screw (84) is located at screwed hole Interior and inner and spring (83) another end in contact, the spring (83), which is in compressive state and pushes against bead (82), makes bead (82) Closely block discharge-channel entrance (88).

3. according to claim 2 a kind of the bearing chamber of excess oil can be discharged automatically, it is characterised in that：The rotating shaft (4) it is provided with bearing block (1) touching position for sealed oil sealing (9).

4. according to claim 3 a kind of the bearing chamber of excess oil can be discharged automatically, it is characterised in that：The discharge Channel outlet (89) is two, and is symmetrically distributed in by line of symmetry of hexagon-head (86) central axis on hexagon-head (86).

5. according to claim 4 a kind of the bearing chamber of excess oil can be discharged automatically, it is characterised in that：The discharge The diameter of channel outlet (89) is less than the diameter of discharge-channel (87).