CN102809009A - Double-bearing maintenance-free rotary compensator - Google Patents
Double-bearing maintenance-free rotary compensator Download PDFInfo
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- CN102809009A CN102809009A CN 201110143386 CN201110143386A CN102809009A CN 102809009 A CN102809009 A CN 102809009A CN 201110143386 CN201110143386 CN 201110143386 CN 201110143386 A CN201110143386 A CN 201110143386A CN 102809009 A CN102809009 A CN 102809009A
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- gland
- outer tube
- rolling bearing
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- pipe
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Abstract
The invention discloses a double-bearing maintenance-free rotary compensator which is a mutually sleeved elastic compression mechanism comprising a gland, an outer pipe, a flange, a spring, a screw rod and a nut. The outer pipe is sleeved with an inner pipe, a step end face where the outer pipe is matched with the inner pipe is a ball way, a big steel ball is disposed in the ball way to form an internal rolling bearing, two sides of the internal rolling bearing are provided with a right seal structure and a left seal structure respectively, an adapter is hermetically connected to a right end of the outer pipe, a left end face of the adapter is provided with an annular groove which is matched with a stopping mouth on a right end face of the inner pipe to form a labyrinth seal structure, an outer end face of the gland is coaxially connected with an annular plate, a ball way is arranged on an inner angle portion of a combined face of the gland and the annular plate, and a small steel ball is disposed in the ball way and forms a centering guide rolling bearing with an outer wall of the inner pipe. The double-bearing maintenance-free rotary compensator is in a through structure, good in sealing effect, flexible and stable in rotation and low in medium pressure loss, the three seal structures and the two rolling bearings are arranged to protect rotation, relative to the outer pipe, of the inner pipe, and flow direction of media is not limited by the structure when mounted.
Description
Technical field
The present invention relates to a kind of pipe safety device, specifically, the present invention relates to a kind of heat distribution pipeline compensation device.
Background technique
Industry pipe network and urban heating network all belong to heat distribution pipe network.The heat distribution pipe network run duration certainly leads to expand with heat and contract with cold accordingly distortion and blind plate thrust along with built-in medium temperature and variation of ambient temperature, and these conventional physical changes have very strong destructiveness to heat distribution pipe network.To the heat distribution pipe network safety problem, people have designed the compensation of pipeline device of multiple structural type, and the whirl compensator that particularly has characteristics such as compensation is flexible, amount is big is used widely, for the heat distribution pipe network safe operation provides the otherwise effective technique equipment.But the whirl compensator of existing technology still comes with some shortcomings, and can not satisfy the supporting requirements of some important heat distribution pipe networks.For example, Chinese patent ZL200720039235.7 discloses a kind of " whirl compensator ", and it is a whirl compensator of using reducer pipe; Between the interior pipe of this structure rotation and the static reducer pipe fluid retention space is arranged; Be prone to produce eddy current during the medium circulation, increase flow resistance, produce the pressure loss.In addition, receive the reducer pipe structural limitations, must press medium and specify the flow direction to install, these are not enough directly to influence whirl compensator at the practical applications technique effect.
Summary of the invention
The present invention is primarily aimed at the deficiency of existing technology, propose a kind of seal tight, rotation flexibly, little, the MEDIA FLOW of the pressure loss is to the dual-supporting maintenance-free rotary compensator that does not receive structural limitations.
The present invention realizes technical goal through following technical proposals.
The dual-supporting maintenance-free rotary compensator, it is made up of interior pipe, ring flat-plate, small ball, gland, outer tube, filler, spring, big steel ball, flange, screw rod, nut, interior ring and adapter.Said gland, outer tube, flange be the concentric gap fit successively; On three's end face same position, be uniformly distributed with through hole; Spring is the aligned through holes place between outer tube and end face of flange; The screw rod of double thread screw structure runs through gland, outer tube, spring and flange, and nut check screw rod two ends constitute elastic compression mechanism.Said outer tube wall and outer wall of inner tube stage casing are equipped with ring-shaped step; The step right side of outer tube and interior pipe step left side are the circular arc alley; Interior pipe inserts from the outer tube right-hand member; Big steel ball constitutes built-in rolling bearing between two steps, the filler that is installed in built-in rolling bearing right side is folded by ring in two forms right sealing configuration, and a built-in rolling bearing left side section compresses filler by gland and forms left sealing configuration.Its improvements are: said adapter and outer tube right-hand member are tightly connected, and take over the left side and are provided with annular groove, and interior pipe right side seam cooperates the formation labyrinth seal structure.The coaxial connection ring flat-plate in said gland exterior edge face is provided with the inclined-plane alley in the junction plane inner corner portion, and small ball places the inclined-plane alley to cooperate formation centering pilot rolling bearing with outer wall of inner tube.
Spring in the said structure is a pressure spring, utilizes the elastic deformation force of spring to compress sealing configuration automatically.The inclined-plane alley of being made up of gland and ring flat-plate is to opening structure, base, alley both sides, inclined-plane angle=110
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The present invention compared with prior art has following good effect:
1, by pipe phase outer tube rotation in the common protection of three seal structures, rotational structure does not receive erosion medium resistance, keeps flexibility of revolution for a long time;
2, divide pipe rotation in the common supporting of the rolling bearing that is listed in the left and right sides, rational in infrastructure, rotation steadily, flexibly;
3, do not have reducer pipe in the structure, the straight-through tube structure does not have flow resistance, and the pressure loss is minimum, the more important thing is that MEDIA FLOW is to not receiving structural limitations;
4, pipe kept coaxial with outer tube in centering pilot rolling bearing structure made, and filler weares and teares without acceptance of persons, and sealing configuration keeps excellent sealing performance for a long time.
Description of drawings
Fig. 1 is that structure of the present invention is partly cutd open schematic representation.
Fig. 2 is Fig. 1 partial sectional view, shows the centering pilot supporting structure among the figure.
Embodiment
According to accompanying drawing the present invention is described further below.
Dual-supporting maintenance-free rotary compensator shown in Figure 1, it is by interior pipe 1, ring flat-plate 2, small ball 3, gland 4, outer tube 5, filler 6, spring 7, big steel ball 8, flange 9, screw rod 10, nut 11, interior ring 12 and take over 13 and form.Said gland 4, outer tube 5, flange 9 be the concentric gap fit successively; On three's end face same position, be uniformly distributed with through hole; Spring 7 is the aligned through holes place between outer tube 5 and flange 9 end faces; The screw rod 10 of double thread screw structure runs through gland 4, outer tube 5, spring 7 and flange 9, and nut 11 locking screws 10 two ends constitute elastic compression mechanism.Said outer tube 5 inwalls and interior pipe 1 outer wall stage casing are equipped with ring-shaped step, and the step right side of outer tube 5 and interior pipe 1 left side are the circular arc alley, and interior pipe 1 inserts from outer tube 5 right-hand members, and big steel ball 8 constitutes built-in rolling bearing between two steps.The filler 6 that is installed in built-in rolling bearing right side is folded by ring 12 in two forms right sealing configuration, and a built-in rolling bearing left side section compresses filler 6 by gland 4 and forms left sealing configuration.Said adapter 13 is tightly connected with outer tube 5 right-hand members, takes over 13 left sides and is provided with annular groove and cooperates the formation labyrinth seal structure with interior pipe 1 right side seam.The coaxial connection ring flat-plate 2 in said gland 4 exterior edge faces is provided with inclined-plane alley as shown in Figure 2 in the junction plane inner corner portion, base, alley both sides, inclined-plane angle=110
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0, present embodiment α=120
0Small ball 3 places the inclined-plane alley to cooperate formation centering pilot rolling bearing with interior pipe 1 outer wall.
The present invention establishes the rotation of pipe 1 phase outer tube 5 in the three seal structures protection altogether, and rotational structure and built-in medium separate, and rotational structure is not corroded, and guarantees that rotation flexibly.And utilize the elastic deformation force of spring 7 to compress sealing configuration automatically, make sealing configuration keep sealability automatically.In addition, the interior pipe 1 of rotation is under built-in rolling bearing and the common supporting of centering pilot rolling bearing, and rotation steadily, flexibly.Pipe 1 does not deflect in affined, and sealing wear is even, can not need manual maintenance for a long time and keeps the better seal effect automatically.Pipe 1 is straight tube structure with adapter 13 among the present invention, and no medium is detained structure, and the pressure loss is minimum, and MEDIA FLOW is to not receiving structural limitations during installation.
Claims (3)
1. dual-supporting maintenance-free rotary compensator, it is by interior pipe (1), ring flat-plate (2), small ball (3), gland (4), outer tube (5), filler (6), spring (7), big steel ball (8), flange (9), screw rod (10), nut (11), interior ring (12) and take over (13) and form; Said gland (4), outer tube (5), flange (9) be the concentric gap fit successively; On three's end face same position, be uniformly distributed with through hole; Spring (7) is the aligned through holes place between outer tube (5) and flange (9) end face; The screw rod of double thread screw structure (10) runs through gland (4), outer tube (5), spring (7) and flange (9), and nut (11) locking screw (10) two ends constitute elastic compression mechanism; Said outer tube (5) inwall and interior pipe (1) outer wall stage casing are equipped with ring-shaped step; The step right side of outer tube (5) and interior pipe (1) step left side are the circular arc alley; Interior pipe (1) inserts from outer tube (5) right-hand member; Big steel ball (8) constitutes built-in rolling bearing between two steps; The filler (6) that is installed in built-in rolling bearing right side is folded by ring (12) in two forms right sealing configuration, and a built-in rolling bearing left side section compresses filler (6) by gland (4) and forms left sealing configuration; It is characterized in that: said adapter (13) is tightly connected with outer tube (5) right-hand member, and adapter (13) left side is provided with annular groove and cooperates the formation labyrinth seal structure with interior pipe (1) right side seam; The coaxial connection ring flat-plate in said gland (4) exterior edge face (2) is provided with the inclined-plane alley in the junction plane inner corner portion, and small ball (3) places the inclined-plane alley to cooperate formation centering pilot rolling bearing with interior pipe (1) outer wall.
2. dual-supporting maintenance-free rotary compensator according to claim 1 is characterized in that: said spring (7) is a pressure spring.
3. dual-supporting maintenance-free rotary compensator according to claim 1 is characterized in that: the said inclined-plane alley of being made up of gland (4) and ring flat-plate (2) is to opening structure, base, alley both sides, inclined-plane angle=110
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110143386 CN102809009A (en) | 2011-05-31 | 2011-05-31 | Double-bearing maintenance-free rotary compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110143386 CN102809009A (en) | 2011-05-31 | 2011-05-31 | Double-bearing maintenance-free rotary compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102809009A true CN102809009A (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110143386 Pending CN102809009A (en) | 2011-05-31 | 2011-05-31 | Double-bearing maintenance-free rotary compensator |
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| CN (1) | CN102809009A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615540A (en) * | 2013-11-29 | 2014-03-05 | 哈尔滨理工大学 | Sealing device used for high-temperature high-pressure steam pump plunger |
| CN108204460A (en) * | 2016-12-20 | 2018-06-26 | 重庆乐迪机车车辆配件有限公司 | Car rotation movable sealer |
| CN108953803A (en) * | 2018-08-13 | 2018-12-07 | 宋丽 | A kind of automobile air-conditioning pipe joint device for preventing refrigerant from leaking |
| CN114719624A (en) * | 2022-04-29 | 2022-07-08 | 二重（德阳）重型装备有限公司 | High-temperature rotor rotary sealing structure, mounting method and control method of compensation pressure |
-
2011
- 2011-05-31 CN CN 201110143386 patent/CN102809009A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615540A (en) * | 2013-11-29 | 2014-03-05 | 哈尔滨理工大学 | Sealing device used for high-temperature high-pressure steam pump plunger |
| CN108204460A (en) * | 2016-12-20 | 2018-06-26 | 重庆乐迪机车车辆配件有限公司 | Car rotation movable sealer |
| CN108204460B (en) * | 2016-12-20 | 2023-11-24 | 东莞市华研新材料科技有限公司 | Movable sealing device for automobile rotating shaft |
| CN108953803A (en) * | 2018-08-13 | 2018-12-07 | 宋丽 | A kind of automobile air-conditioning pipe joint device for preventing refrigerant from leaking |
| CN114719624A (en) * | 2022-04-29 | 2022-07-08 | 二重（德阳）重型装备有限公司 | High-temperature rotor rotary sealing structure, mounting method and control method of compensation pressure |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121205 |