CN204729476U - A kind of sliding bearing sealing configuration - Google Patents

A kind of sliding bearing sealing configuration Download PDF

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Publication number
CN204729476U
CN204729476U CN201520340294.2U CN201520340294U CN204729476U CN 204729476 U CN204729476 U CN 204729476U CN 201520340294 U CN201520340294 U CN 201520340294U CN 204729476 U CN204729476 U CN 204729476U
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China
Prior art keywords
sealing
seal
bearing shell
roll shaft
sliding bearing
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CN201520340294.2U
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Chinese (zh)
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隆成柱
隆小柱
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NANNING TAIYING SILVER TECHNOLOGY Co Ltd
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NANNING TAIYING SILVER TECHNOLOGY Co Ltd
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Abstract

The utility model belongs to bearing shell field of sealing technology.A kind of sliding bearing sealing configuration, comprise roll shaft, bearing shell and axle bush covers, described roll shaft two ends journal engagement is arranged on bearing shell, and described axle bush covers is fixedly connected on bearing shell, is provided with Sealing between described roll shaft and bearing shell; Described Sealing comprises the semi-circular Sealing of two lobe Corresponding matchings, upper Sealing and lower seal; Described upper Sealing Matching installation is on axle bush covers, and described lower seal Matching installation is on bearing shell; The operative end surface of described upper Sealing and lower seal is equipped with the sealing layer of the coupling roll shaft shaft shoulder.Meet the sealing protection of axle journal bearing shell, avoid external solution to immerse in the lubrication system of axle journal bearing shell, avoid lubricant pollution to lose efficacy, protection bearing shell and axle journal, reduce economic input and economic loss.

Description

A kind of sliding bearing sealing configuration
Technical field
The utility model belongs to bearing shell field of sealing technology, particularly a kind of sliding bearing sealing configuration, and sugar refinery squeezer that can be suitable for all size squeezes the sealing of roll shaft axle journal and bearing shell.
Background technique
Sugar-cane press is used for sugar industry enterprise and carries out JUICE EXTRACTION to sugarcane, realizes the machinery of solid-liquid separation.Sugar industry enterprise generally adopt little in the sugar-cane press of large each specifications and models, sugar-cane press can squeeze out a large amount of juice from sugar cane (sugarcane juice) and a small amount of sugarcane fibre residue (bagasse) in crushing sugar cane process, cane juice groove is flowed into through roll shaft two ends, due to sugarcane juice and the reason of part bagasse submergence, sugarcane juice and bagasse all cannot live sugarcane juice and bagasse by shelves due to common shelves juice plate ring, therefore, sugarcane juice and bagasse enter in squeezer axle journal bearing shell, feed lubrication system is caused and has a strong impact on, destroy the lubrication of lubricant oil grease, serious impact is caused on the axle journal and bearing shell that squeeze roll shaft.
Sugarcane juice and bagasse cause oil lubrication and lost efficacy after entering the rotary part of bearing shell axle journal, cannot play the effect of lubrication.Axle journal bearing shell serious wear, directly cause consumption of lubricating oil large, bearing bush abrasion amount is large, changes bearing shell many, repairs increased frequency, affect the working life of axle after journal wear.
I the patent 201410534233.X of company's application discloses a kind of squeezer bearing shell sealing configuration, adopts O-ring seal to mate with roll shaft and fits in slipper seal, thus realize sealing.But sealing structure exists aborning, and installation time is long, detachable maintaining is inconvenient, O-ring seal is easily pullled distortion by roll shaft thus affects the problems such as sealing effect, directly has influence on the economic benefit of product.For this reason, imperative to the technology upgrading of squeezer bearing shell sealing configuration.
Model utility content
Goal of the invention of the present utility model is: for above-mentioned technical problem, a kind of sliding bearing sealing configuration is provided, meet the sealing protection of axle journal bearing shell, external solution is avoided to immerse in the lubrication system of axle journal bearing shell, lubricant pollution is avoided to lose efficacy, protection bearing shell and axle journal, reduce economic input and economic loss; Meanwhile, there is the effect that assembling is quick, repair demolition is convenient and sealability is more stable.
Technical solutions of the utility model are: a kind of sliding bearing sealing configuration, comprises roll shaft, bearing shell and axle bush covers, and described roll shaft two ends journal engagement is arranged on bearing shell, and described axle bush covers is fixedly connected on bearing shell, is provided with Sealing between described roll shaft and bearing shell; It is characterized in that: described Sealing comprises the semi-circular Sealing of two lobe Corresponding matchings, upper Sealing and lower seal; Described upper Sealing Matching installation is on axle bush covers, and described lower seal Matching installation is on bearing shell; The operative end surface of described upper Sealing and lower seal is equipped with the sealing layer of the coupling roll shaft shaft shoulder.
Sliding bearing is generally O-ring seal sealing, and namely arrange O-ring seal at the two ends of axle journal, this kind of O-ring seal comprises simple rubber seal and combined type packing ring, and this kind of O-ring seal is all circular shapes, middle opening coupling roll shaft.But such sealing configuration is in nowadays large-scale roll shaft equipment, such as, on the roll shaft of squeezing sugar refinery sugar press Shortcomings: one, during seal ring installation or removal, need roll shaft to sling and then could finally remove or install, the installation or removal time be long, and workload is large.Two, O-ring seal is easily pullled distortion by roll shaft thus is affected sealing effect.
Here separated type sealing configuration is adopted, i.e. the sealing configuration of the non-integral type of O-ring seal in the past.Here go up Sealing and lower seal is all semi-circular Sealings, during installation, can first and axle bush covers, bearing shell install in advance, can from advance from inner parts inspect sealing effect, this is that existing sealing configuration cannot have.When dismounting and change, more without the need to the lifting such as roll shaft, bearing shell or axle bush covers dismounting, upper Sealing or lower seal can directly be dismantled separately, can replace with separately Sealing or lower seal for the Sealing region that goes wrong; Compare existing sealing configuration installing/dismounting and decrease a process step, reduce human cost, reduce the process time, reduce the replacement cost of Sealing to the full extent.Meanwhile, separated type sealing configuration can reduce O-ring seal is pullled distortion area of influence by roll shaft, reduces like this and breaks down a little, also only need replacing Sealing time serious, reduce replacement cost.
Preferably, between described upper Sealing and axle bush covers, gasket coating is smeared in gap, inner side, and between described lower seal and bearing shell, gasket coating is smeared in gap, inner side.The Sealing of slipper seal generally adopts rubber seal, fit tightly between roll shaft and caulking gum, wherein caulking gum is fixing, but there are friction, wearing and tearing between roll shaft and bearing shell, there is change in the position relationship of roll shaft and caulking gum, this causes roll shaft to caulking gum certain frictional force comparatively greatly, thus can form roll shaft pullling caulking gum, and caulking gum sealability reduces.Above-mentioned situation is very common in existing sealing.
Preferably, the described roll shaft shaft shoulder and sealing layer surface of contact are outer low and inner high trapezium structure, and in coupling, the corresponding described shaft shoulder is arranged described sealing layer.Same, the described roll shaft shaft shoulder and sealing layer surface of contact are provided with the protruding or U-shaped groove of some annular U-shapeds arranged along its circumferencial direction, and described sealing layer is corresponding described shaft shoulder setting in coupling.Here, when the protruding or U-shaped groove of terraced steps, U-shaped mainly prevents sugarcane-pressing-extracting, the sugarcane juice on roll shaft flows in bearing shell, can effectively prevent sugarcane juice from flowing into.
Preferably, described upper Sealing or lower seal comprise working end and fixed end, and described working end and fixed end are in vertical setting mutually, and described working end is semicircular arc, and the laminating end face of described working end and fixed end all arranges caulking gum.Caulking gum is exactly sealing layer in fact, by preventing external contamination from entering with the slipper seal of the roll shaft shaft shoulder.
Preferably, the fixed end of described upper Sealing or lower seal evenly arranges several elongated through holes.Long strip through hole conveniently installs adjustment, fast easier for installation like this.
Further, described working end and fixed end integrally manufactured shaping by steel plate, aluminium sheet, copper coin or rigid plastics.
Preferably, described upper Sealing all arranges concordant otic placode with in lower seal corresponding end, described otic placode is arranged corresponding through hole.Upper Sealing forms a closed ring together with lower seal, thus forms the sealing between roll shaft and bearing shell, can fix Sealing and lower seal further, avoiding there is gap between the two by arranging otic placode.
Preferably, described lower seal be provided with and be tilted under oil drainage hole, oil-discharge trough or oil exit pipe.Oil drainage hole or oil exit pipe are when injecting new lubricant oil, and old lubricant oil is flowed out by oil drainage hole or oil exit pipe, complete oil change or recovery is reused.
Preferably, described upper Sealing is provided with ventilating hole or oil drainage hole.
The beneficial effects of the utility model are:
1. the utility model adopts split-type structural, compares original structure and has the effect that assembling is quick, repair demolition is convenient and sealability is more stable.
2. the utility model stops sugarcane juice and bagasse to enter the friction position of bearing shell and axle journal comprehensively, ensures that bearing shell axle journal has good lubrication effect, reduces bearing bush abrasion, change bearing shell quantity few, reduces journal wear and repairs quantity.
3. the utility model prevents entering of sugarcane juice water and bagasse due to thorough seal, greatly reduces lubricant oil use amount; Open squeezing and after one month, again can reclaim lubricant oil use, greatly reduce production and application cost.
4. lubricant oil that is unnecessary after the utility model journal packing or that lost efficacy flows in a recycling bin by a draining hole, and axle journal two end surface will not exist the situation of lubricant oil solution outflow; Ensure that lubricant oil does not flow in sugarcane juice to go, meet the standard-required of food sanitation.
Accompanying drawing explanation
Fig. 1 is the utility model mounting structure schematic diagram;
Fig. 2 is Sealing front schematic view;
Fig. 3 is Sealing perspective view;
Fig. 4 is lower seal perspective view;
Wherein, 1-roll shaft, 2-bearing shell, 3-axle bush covers, 4-Sealing, the upper Sealing of 5-, 6-lower seal, 7-through hole, 8-oil drainage hole, 9-otic placode, 10-sealing layer, 11-working end, 12-fixed end.
Embodiment
The utility model discloses a kind of sliding bearing sealing configuration, comprise roll shaft, bearing shell and axle bush covers, described roll shaft two ends journal engagement is arranged on bearing shell, and described axle bush covers is fixedly connected on bearing shell, is provided with Sealing between described roll shaft and bearing shell; Described Sealing comprises the semi-circular Sealing of two lobe Corresponding matchings, upper Sealing and lower seal; Described upper Sealing Matching installation is on axle bush covers, and described lower seal Matching installation is on bearing shell; The operative end surface of described upper Sealing and lower seal is equipped with the sealing layer of the coupling roll shaft shaft shoulder.
Sliding bearing is generally O-ring seal sealing, and namely arrange O-ring seal at the two ends of axle journal, this kind of O-ring seal comprises simple rubber seal and combined type packing ring, and this kind of O-ring seal is all circular shapes, intermediate seal mouth coupling roll shaft.But such sealing configuration is in nowadays large-scale roll shaft equipment, such as, on the roll shaft of squeezing sugar refinery sugar press Shortcomings: one, during seal ring installation or removal, need roll shaft to sling and then could finally remove or install, the installation or removal time be long, and workload is large.Two, single O-ring seal is easily pullled distortion by roll shaft thus is affected sealing effect.
The utility model adopts separated type sealing configuration, i.e. the sealing configuration of the non-integral type of O-ring seal in the past.Upper Sealing and lower seal are all semi-circular Sealings, when mounted, can first and axle bush covers, bearing shell install in advance, can from advance from inner parts inspect sealing effect, this is that existing sealing configuration cannot have.When installing or removing, without the need to the liftings such as roll shaft, bearing shell or axle bush covers or dismounting, upper Sealing or lower seal can directly be dismantled separately; Sealing or lower seal can be replaced with separately for the Sealing region that goes wrong, compare existing sealing configuration installing/dismounting and directly reduce by a process step, reduce human cost, improving installation replacing working efficiency is that production gains time, and reduces the replacement cost of Sealing to the full extent.Meanwhile, separated type sealing configuration can reduce O-ring seal is pullled distortion area of influence by roll shaft, reduces like this and breaks down a little, also only need replacing Sealing time serious, reduce replacement cost.
Implement to be described to the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, the medium-sized sugar-cane press roll shaft in sugar refinery and bearing bush installing structure schematic diagram is specially.Comprise roll shaft 1, bearing shell 2, axle bush covers 3 and Sealing 4, wherein the axle journal of roll shaft 1 is arranged on bearing shell 2, the axle bush covers 3 of coupling is installed in bearing shell 2 upper end, Sealing 4 is arranged between roll shaft 1 and bearing shell 2, wherein Sealing 4 and roll shaft 1 are slipper seal, and Sealing 4 is fixing seal with bearing shell 2, axle bush covers 3 respectively.Such Sealing 4, bearing shell 2 and axle bush covers 3 form the installation of roll shaft 1 and the sealed chamber of lubrication, ensure outflow of lubrication oil and avoid external contamination.
As shown in Figures 2 and 3, be Sealing 4 front and schematic perspective view.Sealing 5 and lower seal 6 on the semi-circular that Sealing 4 comprises two lobe Corresponding matchings.During installation, upper Sealing 5 Matching installation is on axle bush covers 3; Lower seal 6 Matching installation is on bearing shell 2; Wherein, the operative end surface of upper Sealing 5 and lower seal 6 is equipped with the sealing layer 10 of coupling roll shaft 1 shaft shoulder.Here sealing layer 10 is sliding bearing caulking gums that related domain uses.It is that interior low outer high terraced steps is arranged that sealing layer 10 contacts end face, and on concrete, sealing layer 10 and roll shaft 1 shaft shoulder are that Corresponding matching is arranged.Here, when terraced steps mainly prevents sugarcane-pressing-extracting, the sugarcane juice on roll shaft 1 flows in bearing shell 2, and terraced steps can effectively prevent sugarcane juice from flowing into.
Certainly, roll shaft 1 shaft shoulder and sealing layer 10 surface of contact also can be arranged the protruding or U-shaped groove of some annular U-shapeds arranged along its circumferencial direction, same sealing layer 10 mates the shaft shoulder and arranges.
Wherein, upper Sealing 5 all arranges concordant otic placode 9 with in lower seal 6 corresponding end, described otic placode 9 is arranged corresponding through hole.Upper Sealing 5 forms a closed ring together with lower seal 6, thus forms the sealing between roll shaft 1 and bearing shell 2, can fix Sealing 5 and lower seal 6 further, avoiding there is gap between the two by arranging otic placode 9.
When mounted, upper Sealing 5 and lower seal 6 can be installed separately, and between upper Sealing 5 and axle bush covers 3, gasket coating is smeared in gap, inner side simultaneously, and between lower seal 6 and bearing shell 2, gasket coating is smeared in gap, inner side.The Sealing 4 of slipper seal generally adopts rubber seal, fit tightly between roll shaft 1 and caulking gum, wherein caulking gum is fixing, but there are friction, wearing and tearing between roll shaft 1 and bearing shell 2, there is change in the position relationship of roll shaft 1 and caulking gum, this causes roll shaft 1 to caulking gum certain frictional force comparatively greatly, thus can form pullling of roll shaft 1 pair of caulking gum, and caulking gum sealability reduces.Above-mentioned situation is very common in existing sealing.Also there is use sealer and seal for O-ring seal in prior art, but owing to using the O-ring seal of integral type, just can smear after needing to install roll shaft 1, axle bush covers 3, its inner seal effect can not get inspection in fact, exist and do not smear place, this often becomes roll shaft 1 pair of O-ring seal and pulls a little.
In the utility model, upper Sealing 5 adopts with lower seal 6 and is separated installation, and gasket coating is smeared in inner side, and such sealability is higher, and this is that existing product structure is incomparable.
If Fig. 4 is lower seal 6 perspective view.Lower seal 6 comprises and manufactures integrated working end 11 and fixed end 12 by steel plate, and working end 11 and fixed end 12 are in vertical settings mutually, and working end 11 is semicircular arc setting, and mates roll shaft 1 shaft shoulder profile; Fixed end 12 mates bearing shell 3 end face and arranges.The laminating end face of working end 11 and fixed end 12 all arranges caulking gum.Lower seal 6 is provided with the oil drainage hole 8 under being tilted to.Oil drainage hole 8 is when injecting new lubricant oil, and old lubricant oil is flowed out by oil drainage hole 8, completes oil change or recovery.The fixed end of upper Sealing 5 is evenly arranged several elongated through holes 7.Long strip through hole 7 conveniently installs adjustment, fast easier for installation like this.Oil drainage hole 8 can use oil exit pipe or oil-discharge trough to substitute.
Formation for working end 11 and fixed end 12 can be integrally manufactured shaping by steel plate, aluminium sheet, copper coin or rigid plastics.
Here be noted that in Sealing 5 and lower seal 6 structure be symmetrical arranged, except oil drainage hole.
Here go up Sealing 5 and also can oil exit pipe be set, for draining lubricant oil.Same, Sealing 5 also can arrange vent.Because bearing shell 2, axle bush covers 3 and roll shaft 1 form the space of a sealing, lubricant oil excretion has some setbacks, and it is smooth and easy that lubricant oil can be made after adding upper vent hole to discharge.
In production application, the utility model sliding bearing sealing configuration installing/dismounting time needs 3 hours, stable work time more than 2000 hours, and the existing structure installing/dismounting time needs 48 hours; In stable work time 1000 hours.Meanwhile, the utility model one squeezes not to be needed in season to change part, and existing structure one squeezes needs replacing 2 season, cost 1100 yuan.
The utility model never occurs in the squeezer roll shaft bearing shell sealing configuration of existing sugar refinery, does not also occur or applied in similar roll shaft bearing shell field of sealing technology.The utility model solves the installing/dismounting troublesome problem of medium-and-large-sized roll shaft bearing shell water-tight equipment, for due contribution is made in the sealing of industry roll shaft.

Claims (10)

1. a sliding bearing sealing configuration, comprises roll shaft, bearing shell and axle bush covers, and described roll shaft two ends journal engagement is arranged on bearing shell, and described axle bush covers is fixedly connected on bearing shell, is provided with Sealing between described roll shaft and bearing shell; It is characterized in that: described Sealing comprises the semi-circular Sealing of two lobe Corresponding matchings, upper Sealing and lower seal; Described upper Sealing Matching installation is on axle bush covers, and described lower seal Matching installation is on bearing shell; The operative end surface of described upper Sealing and lower seal is equipped with the sealing layer of the coupling roll shaft shaft shoulder.
2. a kind of sliding bearing sealing configuration according to claim 1, is characterized in that: between described upper Sealing and axle bush covers, gasket coating is smeared in gap, inner side, and between described lower seal and bearing shell, gasket coating is smeared in gap, inner side.
3. a kind of sliding bearing sealing configuration according to claim 1, is characterized in that: the described roll shaft shaft shoulder and sealing layer surface of contact are outer low and inner high trapezium structure, and in coupling, the corresponding described shaft shoulder is arranged described sealing layer.
4. a kind of sliding bearing sealing configuration according to claim 1, it is characterized in that: the described roll shaft shaft shoulder and sealing layer surface of contact are provided with the protruding or U-shaped groove of some annular U-shapeds arranged along its circumferencial direction, and in coupling, the corresponding described shaft shoulder is arranged described sealing layer.
5. a kind of sliding bearing sealing configuration according to claim 1, it is characterized in that: described upper Sealing or lower seal comprise working end and fixed end, described working end and fixed end are in vertical setting mutually, described working end is semicircular arc, and the laminating end face of described working end and fixed end all arranges caulking gum.
6. a kind of sliding bearing sealing configuration according to claim 5, is characterized in that: the fixed end of described upper Sealing or lower seal is evenly arranged several elongated through holes.
7. a kind of sliding bearing sealing configuration according to claim 5 or 6, is characterized in that: described working end and fixed end integrally manufactured shaping by steel plate, aluminium sheet, copper coin or rigid plastics.
8. a kind of sliding bearing sealing configuration according to claim 1, is characterized in that: described upper Sealing all arranges concordant otic placode with in lower seal corresponding end, described otic placode is arranged corresponding through hole.
9. a kind of sliding bearing sealing configuration according to claim 1, is characterized in that: oil drainage hole, oil-discharge trough or oil exit pipe under described lower seal is provided with and is tilted to.
10. a kind of sliding bearing sealing configuration according to claim 1, is characterized in that: described upper Sealing is provided with ventilating hole or oil drainage hole.
CN201520340294.2U 2015-05-22 2015-05-22 A kind of sliding bearing sealing configuration Active CN204729476U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104879388A (en) * 2015-05-22 2015-09-02 南宁钛银科技有限公司 Sliding bearing sealing structure
CN105402254A (en) * 2015-12-07 2016-03-16 广西恒达电机科技有限公司 Device for improving oil leakage of sliding bearing pedestal of high-voltage motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104879388A (en) * 2015-05-22 2015-09-02 南宁钛银科技有限公司 Sliding bearing sealing structure
CN105402254A (en) * 2015-12-07 2016-03-16 广西恒达电机科技有限公司 Device for improving oil leakage of sliding bearing pedestal of high-voltage motor

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Sliding bearing sealing structure

Effective date of registration: 20180801

Granted publication date: 20151028

Pledgee: Guilin bank Limited by Share Ltd Nanning science and Technology Branch

Pledgor: Nanning TaiYing Silver Technology Co., Ltd.

Registration number: 2018450000020