CN206054197U - Rotary sealing structure and blower variable-pitch pivoting support structure - Google Patents

Abstract

This utility model provides a kind of rotary sealing structure and blower variable-pitch pivoting support structure, belong to rotary sealing construction applications, rotary sealing structure is used to seal revolving structure, revolving structure includes the first component being rotatedly connected and second component, between first component and second component, gap forms lubrication channel, and lubrication channel is by two groups of black box sealings；In two groups of black boies, least one set is single lip seal component；Single lip seal component includes single lip sealing ring, shoe cream room and oil sealing plate；Shoe cream room connects lubrication channel, and shoe cream room has the extraneous opening of connection；Single lip sealing ring is located at shoe cream room and the connectivity part of lubrication channel to be used to separate shoe cream room and lubrication channel；Oil sealing plate is used for the opening for closing shoe cream room.The above-mentioned rotary sealing structure of blower variable-pitch pivoting support structure application.The leakage of blower variable-pitch pivoting support structure lubricant grease and the problem splashed are can solve the problem that, fan provides good working environment, reduces later maintenance cost.

Description

Rotary sealing structure and blower variable-pitch pivoting support structure

Technical field

This utility model is related to rotary sealing construction applications, becomes in particular to a kind of rotary sealing structure and blower fan Oar pivoting support structure.

Background technology

Revolving structure is the very common structure of industrial circle, including two parts that can be relatively rotated, in two portions Be stored between part lubricant grease, to reduce frictional force when part is rotated.Rotary sealing structure is used to be tightly connected two turns Dynamic component, prevents lubricant grease from overflowing.

In prior art, rotary sealing structure is relatively simple, it is easy to cause lubricant grease to overflow.The lubricant grease of leakage Not only affect the maintenance of revolving structure, and when part can be caused to rotate lubricant grease get rid of everywhere, bring other hidden Suffer from.

For example, in pivoting support of windmill generator structure, the lubricant grease of leakage can be got rid of in machine in blower fan work Cabin everywhere, is likely to result in cabin and catches fire, and there is great potential safety hazard.

Utility model content

One of this utility model purpose there are provided a kind of rotary sealing structure, improve rotary sealing knot in prior art The problem of structure sealing function difference；

Another object of the present utility model is to provide a kind of blower variable-pitch pivoting support structure, improves prior art wind Machine is also easy to produce the problem of lubricant grease leakage when working.

What this utility model was realized in：

A kind of rotary sealing structure, including the first component and second component that are rotatedly connected, the first component and described Gap between second component forms lubrication channel, and the lubrication channel is by two groups of black box sealings；Two groups of sealings In component, least one set is single lip seal component；Single lip seal component includes single lip sealing ring, shoe cream room and oil sealing plate；

The shoe cream room connects the lubrication channel, and the shoe cream room has the extraneous opening of connection；Single lip is close Seal is located at the connectivity part of the shoe cream room and the lubrication channel, for separating the shoe cream room and the lubrication channel；Institute Oil sealing plate is stated for closing the opening of the shoe cream room.

Further, single lip sealing ring has the first connecting portion and the first stop part being oppositely arranged, first connection Portion is connected with the first component, and first stop part is fitted with the second component.

Further, first component is provided with the first draw-in groove near the side of second component, and the first connecting portion is connected in First draw-in groove.

Further, oil sealing plate includes sealing and fixed part, and the sealing is fitted with the first component, described Fixed part is fixedly linked with the second component.

Further, lubrication channel includes the first opening and the second opening, and two groups of black boies are single lip seal Component, first opening and second opening are by single lip seal component sealing.

Further, lubrication channel includes the first opening and the second opening, and two groups of black boies include one group of list lip Black box and one group of double-lip sealing ring, by single lip seal component sealing, second opening is logical for first opening Cross the double-lip sealing ring sealing.

Further, on the direction vertical with the lubrication channel bearing of trend, the size of the shoe cream room is more than institute State the size of lubrication channel.

Further, the first component is located at the inner side of the second component, and the second component is communicated with described Lubrication channel and the oil filler point and outage through the second component, the outage connect away from one end of the lubrication channel It is connected to oil-collecting bottle.

A kind of blower variable-pitch pivoting support structure, including the inner ring and outer ring that are rotatedly connected, between the inner ring and outer ring Gap form lubrication channel, the lubrication channel includes the first opening and the second opening, and first opening is close by single lip Sealing assembly is sealed, and second opening is sealed by double-lip sealing ring；

Single lip seal component includes single lip sealing ring, shoe cream room and oil sealing plate；The shoe cream room connects the lubrication Passage, and the shoe cream room has the extraneous opening of connection；Single lip sealing ring is located at the shoe cream room and the lubrication is logical The connectivity part in road is used to separate the shoe cream room and the lubrication channel；The oil sealing plate is used to close opening for the shoe cream room Mouthful.

A kind of blower variable-pitch pivoting support structure, including the inner ring and outer ring that are rotatedly connected, between the inner ring and outer ring Gap formed lubrication channel, the lubrication channel include the first opening and second opening, it is described first opening and described second Opening is by single lip seal component sealing；

Single lip seal component includes single lip sealing ring, shoe cream room and oil sealing plate；The shoe cream room connects the lubrication Passage, and the shoe cream room has the extraneous opening of connection；Single lip sealing ring is located at the shoe cream room and the lubrication is logical The connectivity part in road is used to separate the shoe cream room and the lubrication channel；The oil sealing plate is used to close opening for the shoe cream room Mouthful.

The beneficial effects of the utility model are：In the rotary sealing structure that this utility model embodiment is provided, single lip seal Component can not only play the sealing function to lubricant grease in lubrication channel, and, can be right after lubricant grease leakage The lubricant grease of leakage is collected so as to will not leak to rotary sealing structural outer, lubricant grease four when preventing its work Splash at place.Give back to turn the good working environment of sealing structure offer.And revolving structure is caused without arranging outage and oil-collecting bottle, Simple structure, cost are lower.

The blower variable-pitch pivoting support structure that this utility model embodiment is provided so as to operationally unnecessary lubricant grease Can discharge from single lip sealing ring, and oil storage intracavity is stored in by lubricant grease is overflowed, prevent lubricant grease leakage and splash, Fan provides good working environment, reduces later maintenance cost, reduces potential safety hazard.

Description of the drawings

In order to be illustrated more clearly that the technical scheme of this utility model embodiment, below will be to wanting needed for embodiment The accompanying drawing for using is briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore not The restriction to scope is should be considered as, for those of ordinary skill in the art, on the premise of not paying creative work, Can be obtaining other related accompanying drawings according to these accompanying drawings.

Fig. 1 is the structural representation of the blower variable-pitch pivoting support structure that this utility model embodiment embodiment 1 is provided；

Fig. 2 is the enlarged drawing in Fig. 1 at II；

Fig. 3 is the enlarged drawing of III in Fig. 1；

Fig. 4 is the structural representation of the blower variable-pitch pivoting support structure that this utility model embodiment embodiment 2 is provided.

Figure acceptance of the bid note is respectively：

Blower variable-pitch pivoting support structure 100；

Rotary sealing structure 110；

Inner ring 120；

First opening 121；

Second opening 122；

Lubrication channel 123；

Steel ball 124；

Retainer 125；

First draw-in groove 126；

Second draw-in groove 127；

Second Access Division 1271；

Outer ring 130；

Oil filler point 131；

Outage 132；

Oil-collecting bottle 133；

Single lip seal component 140；

Single lip sealing ring 141；

First connecting portion 1411；

First stop part 1412；

Shoe cream room 142；

Oil sealing plate 143；

Sealing 1431；

Fixed part 1432；

Bolt 144；

Double-lip sealing ring 150；

Second connecting portion 151；

Second stop part 152；

First Access Division 153.

Specific embodiment

To make purpose, technical scheme and the advantage of this utility model embodiment clearer, below in conjunction with this practicality Accompanying drawing in new embodiment, is clearly and completely described to the technical scheme in this utility model embodiment, shows So, described embodiment is a part of embodiment of this utility model, rather than the embodiment of whole.Based on this practicality Embodiment in new, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of this utility model protection.Therefore, enforcement of the present utility model below to providing in the accompanying drawings The detailed description of mode is not intended to limit claimed scope of the present utility model, but is merely representative of of the present utility model Selected embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not making creative labor The every other embodiment obtained under the premise of dynamic, belongs to the scope of this utility model protection.

In description of the present utility model, it is to be understood that the term of indicating position or position relationship is based on accompanying drawing Shown orientation or position relationship, are for only for ease of description this utility model and simplify description, rather than indicate or imply institute The equipment or element of finger must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this reality With new restriction.

In this utility model, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " Gu It is fixed " etc. term should be interpreted broadly, it is for example, it may be fixedly connected, or be detachably connected or integral；Can be It is mechanically connected, or electrically connects；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis Concrete condition understands concrete meaning of the above-mentioned term in this utility model.

In this utility model, unless otherwise clearly defined and limited, fisrt feature is on or below second feature The first and second feature directly contacts can be included, it is also possible to be not directly contact including the first and second features but by it Between other characterisation contact.And, fisrt feature is on second feature, top and above include fisrt feature the Directly over two features and oblique upper, or fisrt feature level height is merely representative of higher than second feature.Fisrt feature is special second Under levying, lower section and fisrt feature included below are immediately below second feature and obliquely downward, or are merely representative of fisrt feature level Second feature is less than highly.

Embodiment 1, refers to Fig. 1, present embodiments provides a kind of blower variable-pitch pivoting support structure 100, blower variable-pitch Pivoting support structure 100 includes rotary sealing structure 110, and rotary sealing structure 110 includes the first component being rotatedly connected and Two parts, the gap between first component and second component form lubrication channel 123, and lubrication channel 123 passes through two groups of sealing groups Part is sealed.First component is inner ring 120 in the present embodiment, and second component is outer ring 130.

Outer ring 130 is circle ring column or annulus cylindricality, and outer ring 130 includes the first side wall positioned at outside, positioned at inner side Second sidewall, first end face and second end face, first end face and second end face are respectively connected with the first side wall and second sidewall. First annular groove is offered in second sidewall, first annular groove includes two arranged along 130 axis of outer ring in the present embodiment. The section of first annular groove is semicircle.Outer ring 130 is provided with oil filler point 131 and outage 132, oil filler point 131 and outage 132 Run through the first side wall and second sidewall.Outage 132 is connected with oil-collecting bottle 133 away from one end of the second sidewall.Oiling The axis of hole 131 and outage 132 is each perpendicular to the axis of outer ring 130.In the present embodiment, 132 edge of oil filler point 131 and outage The axially spaced-apart of outer ring 130 is arranged, and, near first end face, outage 132 is near second end face for oil filler point 131.Oil filler point 131 is Multiple, circumferencial direction uniform intervals of the multiple oil filler points 131 along outer ring 130 are arranged, and outage 132 is also multiple, multiple oil extractions The 132 same circumferencial direction uniform intervals along outer ring 130 of hole are arranged.

Inner ring 120 is circle ring column, and which includes the 3rd side wall positioned at outside, offers second annular on the 3rd side wall Groove, the first draw-in groove 126 and the second draw-in groove 127.The section of the second cannelure is semicircle.In the present embodiment, the second cannelure bag Include two arranged along 120 axis of inner ring.Two end faces of first draw-in groove 126 and the second draw-in groove 127 respectively close to inner ring 120, Second cannelure is located between the first draw-in groove 126 and the second draw-in groove 127, and the first draw-in groove 126 and the second draw-in groove 127 are annular Groove, the cross sectional shape of the first draw-in groove 126 are substantially rectangular, and the cross sectional shape of the second draw-in groove 127 is substantially T-shaped.

After outer ring 130 is assembled with inner ring 120, first annular groove and the second cannelure are engaged to form steel ball holding tank, steel Other gaps between ball holding tank and second sidewall and the 3rd side wall are collectively forming lubrication channel 123, and lubrication channel 123 With the first opening 121 and the second opening 122, near first end face, second is open 122 near second end face to the first opening 121, Two groups of steel balls 124 are provided with steel ball holding tank, each group of steel ball 124 is presented annular spread, and two groups of steel balls 124 are along outer ring 130 axis direction interval setting；Steel ball 124 is fixed by retainer 125.Oil filler point 131 and outage 132 are logical with lubrication Road 123 is communicated.

Two groups of black boies include one group of list lip seal component 140 and a double-lip sealing ring 150.First opening 121 leads to Cross double-lip sealing ring 150 to seal, the second opening 122 is sealed by single lip seal component 140.

As shown in Fig. 2 double-lip sealing ring 150 is loop configuration, including the second of the second connecting portion 151 and annular of annular Stop part 152, the connection of second connecting portion 151 and are connected in the second draw-in groove 127 inner ring 120, the second stop part 152 and outer ring 130 fit.Second connecting portion 151 is generally T-shaped, and Access Division at two, and second connecting portion are formed between the second draw-in groove 127 151 surfaces form the first Access Division 153 of outside arc, and the second draw-in groove 127 includes inside the second Access Division of arc 1271, First Access Division 153 is connected in the second Access Division 1271.Second stop part 152 is substantially in Y types, forms twice with outer ring 130 Sealing.

Single lip seal component 140 includes single lip sealing ring 141, shoe cream room 142 and oil sealing plate 143；As shown in figure 3, single lip Sealing ring 141 be loop configuration, single lip sealing ring 141 include annular first connecting portion 1411 and annular the first stop part 1412, first connecting portion 1411 is connected with inner ring 120 and is connected in the first draw-in groove 126, the first stop part 1412 and outer ring 130 Fit.The length direction of first connecting portion 1411 and the first stop part 1412 is substantially vertical with the axis of outer ring 130, and first The thickness of stop part 1412 tapers off trend, and thicker near the part thickness of first connecting portion 1411.Oil sealing plate 143 is annular Structure, is made up of steel plate, and its thickness is 1mm；Oil sealing plate 143 includes the fixed part 1432 of the sealing 1431 and annular of annular, Sealing 1431 is fitted with inner ring 120, and fixed part 1432 is fixedly connected on the second end of outer ring 130 by multiple bolts 144 Face.

The second end face of outer ring 130 and second side adjacent offer half groove, single lip sealing ring 141, outer ring 130, Half groove is surrounded and forms shoe cream room 142 by oil sealing plate 143 and inner ring 120.

As shown in figure 1, single lip sealing ring 141 is connected to the in assembling by blower variable-pitch pivoting support structure 100 first In one draw-in groove 126, double-lip sealing ring 150 is connected in the second draw-in groove 127, and two groups of steel balls 124 are fixed on retainer 125 then On, secondly the retainer 125 with steel ball 124 is enclosed within outside inner ring 120 and is enclosed within outside inner ring 120, finally outer ring 130 Oil sealing plate 143 is fixed on outer ring 130 and completes to install.After installing, single lip sealing ring 141 is located at shoe cream room 142 and institute The connectivity part for stating lubrication channel 123 is used to separate the shoe cream room 142 and the lubrication channel 123, and oil sealing plate 143 is used to close The opening (i.e. the opening of half groove) of the shoe cream room 142.

Lubricant grease is injected into lubrication channel 123 by oil filler point 131, unnecessary lubricant grease is from 132 row of outage Go out and collected by oil-collecting bottle 133.When in use, inner ring 120 is relatively high speed with outer ring 130 for blower variable-pitch pivoting support structure 100 Rotate, steel ball high speed scroll, drive lubricant grease activity, a part of high-tension lubrication oils and fatss to break through the sealing of single lip sealing ring 141 Resistance, flows in shoe cream room 142, is acted on by oil sealing plate 143, overflows lubricant grease and is sealed in shoe cream room 142 so as to not Can overflow again.In the present embodiment, on the direction vertical with 123 bearing of trend of lubrication channel, the size of shoe cream room 142 is big In the size of lubrication channel 123.This size relationship enables shoe cream room 142 to store the lubricating oil of the discharge of lubrication channel 123 Fat simultaneously guarantees that lubricant grease will not be overflowed from shoe cream room 142.

Single lip sealing ring 141 relative to double-lip sealing ring 150 have simple structure it is easy for installation the characteristics of, and sealing compared with Double-lip sealing ring 150 is poor, therefore lubricant grease can be from single lip seal during 100 use of blower variable-pitch pivoting support structure Enclose, it is ensured that at double-lip sealing ring 150, do not have lubricant grease spilling, it is ensured that whole blower variable-pitch pivoting support knot 100 outside neat and tidy of structure.In use for some time oil sealing plate 143 is removed, by the spilling lubricant grease in shoe cream room 142 Cleared up, it is ensured that the normal use of blower variable-pitch pivoting support structure 100.

It should be appreciated that in the case of being provided with single lip seal component 140, outer ring 130 can be not provided with outage 132 and collection Oil bottle 133, it is also possible to play a part of the lubricant grease to overflowing and reclaim；In prior art in rotary sealing structure 110, the side of being Just the connection of oil-collecting bottle 133, connects outage 132 and oil-collecting bottle 133 using bend pipe, and lubricant grease resistance when discharging is larger, It is not easy to the discharge of lubricant grease.Outage 132 and oil-collecting bottle 133 can be not provided with the present embodiment, on not existing State problem.

The axis of oil filler point 131 and outage 132 simultaneously need not also can perpendicular to the axis of outer ring 130, slightly deviation Use.Connected mode between single lip sealing ring 141 and double-lip sealing ring 150 and inner ring 120 be not limited to clamping, or Interference fit or other fixed components that pass through are realized connecting.Half groove is also not necessarily limited to positioned at outer ring 130, located at inner ring 120 It is also feasible.

Single lip sealing ring 141 and 150 concrete structure of double-lip sealing ring are also not limited to above-mentioned, single lip of some other structure Sealing ring 141 and double-lip sealing ring 150 can also realize the effect being tightly connected.143 material of oil sealing plate is not limited to steel plate, also may be used To be the hardboards such as glass plate, plastic plate, its thickness can be between 0.5mm～5mm, or other thickness.Oil sealing plate 143 Bolt 144 is not limited to the annexation between outer ring 130 to be connected, or clamping or other modes.Oil sealing plate 143 with Can be that gap coordinates or interference fits between inner ring 120, or in the setting rubber of second connecting portion 151 of oil sealing plate 143 Circle so as to tightr with the cooperation between inner ring 120.

As shown in figure 1, the first opening 121 seals connected by double-lip sealing ring 150 in the present embodiment, the second opening 122 by Single sealing of lip seal component 140 is connected, it is possible to understand that, it is also possible to it is that the first opening 121 seals phase by single lip seal component 140 Even, the second opening 122 seals connected by double-lip sealing ring 150.

It should be appreciated that the rotary sealing structure 110 of said structure may be not only suitable for blower variable-pitch pivoting support structure 100, other revolving structures are can be applicable to, the first component and second component being rotatedly connected is tightly connected, playing prevents profit The effect of sliding grease leakage.

Embodiment 2, present embodiments provides a kind of blower variable-pitch pivoting support structure 100, refers to Fig. 4, the present embodiment Middle blower fan pitching slewing support structure 100 with 100 difference of blower fan pitching slewing support structure in embodiment 1 is, first Opening 121 and the second opening 122 are connected by the sealing of single lip seal component 140.

In use, unnecessary lubricant grease can be by two single lips for this blower variable-pitch pivoting support structure 100 Overflow at sealing ring 141 and store to shoe cream room 142, play the purpose for preventing lubricant grease from leaking.

As can be seen that 100 reasonable integral structure of blower variable-pitch pivoting support structure of this structure so as to operationally many Remaining lubricant grease can be discharged from single lip sealing ring 141, and is stored in lubricant grease is overflowed in shoe cream room 142, and prevented Lubricant grease is leaked and is splashed, and fan provides good working environment, reduces later maintenance cost, reduces safety hidden Suffer from.

Preferred implementation of the present utility model is the foregoing is only, this utility model is not limited to, for For those skilled in the art, this utility model can have various modifications and variations.It is all in spirit of the present utility model and former Within then, any modification, equivalent substitution and improvements made etc. are should be included within protection domain of the present utility model.

Claims (10)

1. a kind of rotary sealing structure (110), including the first component and second component that are rotatedly connected, the first component and institute The gap stated between second component forms lubrication channel (123), and the lubrication channel (123) is sealed by two groups of black boies； Characterized in that, least one set is single lip seal component (140) in two groups of black boies；Single lip seal component (140) including single lip sealing ring (141), shoe cream room (142) and oil sealing plate (143)；

The shoe cream room (142) connects the lubrication channel (123), and the shoe cream room (142) with the extraneous opening of connection； Single lip sealing ring (141) is positioned at the connectivity part of the shoe cream room (142) and the lubrication channel (123), for separating State shoe cream room (142) and the lubrication channel (123)；The oil sealing plate (143) is for closing opening for the shoe cream room (142) Mouthful.

2. rotary sealing structure (110) according to claim 1, it is characterised in that single lip sealing ring (141) has The first connecting portion (1411) being oppositely arranged and the first stop part (1412), the first connecting portion (1411) with described first Part connects, and first stop part (1412) is fitted with the second component.

3. rotary sealing structure (110) according to claim 2, it is characterised in that the first component is near second The side of part is provided with the first draw-in groove (126), and the first connecting portion (1411) is connected in first draw-in groove (126).

4. rotary sealing structure (110) according to claim 1, it is characterised in that the oil sealing plate (143) is including sealing Portion (1431) and fixed part (1432), the sealing (1431) are fitted with the first component, the fixed part (1432) It is fixedly linked with the second component.

5. the rotary sealing structure (110) according to any one of claim 1-4, it is characterised in that the lubrication channel (123) including the first opening (121) and the second opening (122), two groups of black boies are single lip seal component (140), First opening (121) and second opening (122) are by single lip seal component (140) sealing.

6. the rotary sealing structure (110) according to any one of claim 1-4, it is characterised in that the lubrication channel (123) including the first opening (121) and the second opening (122), two groups of black boies include one group of list lip seal component (140) and one group of double-lip sealing ring (150), first opening (121) is sealed by single lip seal component (140), institute State the second opening (122) to seal by the double-lip sealing ring (150).

7. rotary sealing structure (110) according to claim 1, it is characterised in that prolonging with the lubrication channel (123) Stretch on the vertical direction in direction, the size of the shoe cream room (142) is more than the size of the lubrication channel (123).

8. rotary sealing structure (110) according to claim 1, it is characterised in that the first component is located at described the The inner side of two parts, the second component are communicated with the lubrication channel (123) and the oil filler point through the second component (131) and outage (132), the outage (132) is connected with oil-collecting bottle away from one end of the lubrication channel (123) (133)。

9. a kind of blower variable-pitch pivoting support structure (100), it is characterised in that including the inner ring (120) and outer ring that are rotatedly connected (130), the gap between the inner ring (120) and outer ring (130) forms lubrication channel (123), lubrication channel (123) bag The first opening (121) and the second opening (122) are included, first opening (121) is sealed by single lip seal component (140), institute State the second opening (122) to seal by double-lip sealing ring (150)；

Single lip seal component (140) is including single lip sealing ring (141), shoe cream room (142) and oil sealing plate (143)；The storage Oil pocket (142) connects the lubrication channel (123), and the shoe cream room (142) with the extraneous opening of connection；Single lip is close Seal (141) is used to separate the shoe cream room positioned at the connectivity part of the shoe cream room (142) and the lubrication channel (123) And the lubrication channel (123) (142)；The oil sealing plate (143) is for closing the opening of the shoe cream room (142).

10. a kind of blower variable-pitch pivoting support structure (100), it is characterised in that including the inner ring (120) and outer ring that are rotatedly connected (130), the gap between the inner ring (120) and outer ring (130) forms lubrication channel (123), lubrication channel (123) bag The first opening (121) and the second opening (122) are included, first opening (121) and second opening (122) are by single lip Black box (140) is sealed；

Single lip seal component (140) is including single lip sealing ring (141), shoe cream room (142) and oil sealing plate (143)；The storage Oil pocket (142) connects the lubrication channel (123), and the shoe cream room (142) with the extraneous opening of connection；Single lip is close Seal (141) is used to separate the shoe cream room positioned at the connectivity part of the shoe cream room (142) and the lubrication channel (123) And the lubrication channel (123) (142)；The oil sealing plate (143) is for closing the opening of the shoe cream room (142).