CN110762219A - Rotary sealing device and forming drum - Google Patents
Rotary sealing device and forming drum Download PDFInfo
- Publication number
- CN110762219A CN110762219A CN201911188505.4A CN201911188505A CN110762219A CN 110762219 A CN110762219 A CN 110762219A CN 201911188505 A CN201911188505 A CN 201911188505A CN 110762219 A CN110762219 A CN 110762219A
- Authority
- CN
- China
- Prior art keywords
- rotary sealing
- fixed outer
- rotary
- outer ring
- sealing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 79
- 238000005299 abrasion Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3268—Mounting of sealing rings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/08—Building tyres
- B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
- B29D30/24—Drums
- B29D30/26—Accessories or details, e.g. membranes, transfer rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
- F16L39/06—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies of the multiline swivel type, e.g. comprising a plurality of axially mounted modules
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The invention provides a rotary sealing device which comprises a fixed outer ring and two rotary sealing rings, wherein the two rotary sealing rings are respectively arranged on the inner walls of two ends of the fixed outer ring through fasteners so as to ensure that two ends of the fixed outer ring assembled with a rotating shaft are sealed and air-tight. The rotary sealing ring is tightly connected with the fixed outer ring through the fastening piece, so that the relative sliding between the rotary sealing ring and the fixed outer ring can be prevented, the abrasion of a rotary sealing device is avoided, the integral sealing performance of the forming drum is improved, and the service life is prolonged. This scheme still provides a building drum that has above-mentioned rotary sealing device.
Description
Technical Field
The invention belongs to the technical field of tire manufacturing, and particularly relates to a rotary sealing device and a forming drum.
Background
The rotary sealing device is a set of very important equipment on tire building machine equipment, and has the main functions of: the rotary sealing device is an important device for transmitting the compressed air source from the fixed end to the inside of the rotary forming drum. The existing rotary sealing device is easy to damage due to abrasion, so that equipment is shut down, the period for processing and purchasing a new sealing device is long, the cost is high, and the maintenance difficulty is high.
Therefore, how to prevent the abrasion of the rotary sealing device and improve the sealing performance is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to provide a rotary sealing device and a forming drum, which can prevent the rotary sealing device from being worn, improve the sealing performance and prolong the service life.
In order to solve the technical problem, the invention provides a rotary sealing device which comprises a fixed outer ring and two rotary sealing rings, wherein the two rotary sealing rings are respectively arranged on the inner walls of two ends of the fixed outer ring through fasteners so as to ensure that two ends of the fixed outer ring after being assembled with a rotating shaft are sealed and air-tight.
Preferably, in the above rotary seal device, the fixed outer ring and the connection surfaces of the two rotary seal rings are both provided with positioning holes, and the fastening member fastens the fixed outer ring and the rotary seal rings through the positioning holes.
Preferably, in the above rotary seal device, the fastener is a dowel or a wedge.
The scheme also provides a forming drum which comprises a rotating shaft and a rotary sealing device sleeved on the rotating shaft, wherein the rotary sealing device is the rotary sealing device in the scheme.
Preferably, in the above building drum, the fixed outer ring is provided on the rotating shaft through a bearing.
Preferably, in the above building drum, the rotary sealing devices are a plurality of rotary sealing devices coaxially arranged side by side, two rotary sealing rings are arranged on each fixed outer ring, and one bearing is arranged at each of two ends of an integral sealing structure formed by the plurality of rotary sealing devices.
The invention provides a rotary sealing device which comprises a fixed outer ring and two rotary sealing rings, wherein the two rotary sealing rings are respectively arranged on the inner walls of two ends of the fixed outer ring through fasteners so as to ensure that two ends of the fixed outer ring assembled with a rotating shaft are sealed and air-tight. The rotary sealing ring is tightly connected with the fixed outer ring through the fastening piece, so that the relative sliding between the rotary sealing ring and the fixed outer ring can be prevented, the abrasion of a rotary sealing device is avoided, the integral sealing performance of the forming drum is improved, and the service life is prolonged. This scheme still provides a building drum that has above-mentioned rotary sealing device.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a structural assembly view of a rotary sealing device provided by the present solution on a building drum;
fig. 2 is a schematic structural diagram of the rotary sealing device provided in the present embodiment.
In the upper diagram:
1. a rotating shaft; 2. fixing the outer ring; 201. positioning holes; 3. a bearing; 4. rotating the sealing ring; in1, first gas inlet; in2, second gas inlet; out1, first outlet, Out2, second outlet.
Detailed Description
The core of the invention is to provide a rotary sealing device and a forming drum, which can prevent the rotary sealing device from being worn, improve the sealing performance and prolong the service life.
In order to make those skilled in the art better understand the technical solutions provided by the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-2, the rotary sealing device provided by the present invention includes a fixed outer ring 2 and two rotary sealing rings 4, wherein the two rotary sealing rings 4 are respectively disposed on inner walls of two ends of the fixed outer ring 2 through fasteners, so as to ensure that two ends of the fixed outer ring 2 assembled with the rotating shaft 1 are sealed and air-tight.
The rotary sealing ring 4 is tightly connected with the fixed outer ring 2 through a fastening piece, so that the relative sliding between the rotary sealing ring 4 and the fixed outer ring 2 can be prevented, particularly, when the pressure of the filled compressed gas is too high, the lip of the rotary sealing ring 4 and the lip of the rotary sealing ring 1 generate linear friction, and the lip of the rotary sealing ring 4 seals the gas, so that the gas is introduced into a pore channel inside the rotary shaft 1. Because the fastening piece is tightly connected, the rotary sealing ring and the rotating shaft cannot slip relatively, so that the abrasion of the rotary sealing device is avoided, the integral sealing performance of the forming drum is improved, and the service life is prolonged.
In a preferred embodiment, positioning holes are formed in the connecting surfaces of the fixed outer ring 2 and the two rotary seal rings 4, and the fastening member fastens the fixed outer ring 2 and the rotary seal rings 4 through the positioning holes 201. Specifically, the fastening member is a dowel or a wedge, but of course, the fastening member may also adopt other forms of fastening structures according to practical application.
It should be noted that the number of the fasteners can be determined by calculation and verification through field tests according to the holding force of the lip of the rotary seal ring 4 and the rotary shaft 1 and the strength of the fasteners themselves.
In addition, the application also discloses a forming drum, which comprises a rotating shaft 1 and a rotary sealing device sleeved on the rotating shaft 1, wherein the rotary sealing device is the rotary sealing device disclosed in the above embodiment, so that the forming drum with the rotary sealing device also has all the technical effects, and the details are not repeated herein.
In a preferred embodiment, the stationary outer ring 2 is arranged on the rotating shaft 1 via a bearing 3.
Furthermore, the rotary sealing devices are coaxially arranged side by side, two rotary sealing rings 4 are arranged on each fixed outer ring 2, and two bearings 3 are respectively arranged at two ends of an integral sealing structure formed by the rotary sealing devices. The rotary sealing devices can be firmly connected through pins or other fasteners, and mutual movement of the rotary sealing devices is prevented.
As shown in fig. 1, the rotating shaft 1 is of a structure rotating around the axis, the fixed outer ring 2 is of a fixed structure, and there are two fixed outer rings 2 arranged side by side, the rotating shaft 1 is fixed on the fixed outer ring 2 through two bearings 3, and each fixed outer ring has a rotary sealing ring 4 on each side. And round holes of phi 3mm are punched on the end surfaces of two sides of the fixed outer ring 2, meanwhile, round holes of phi 3mm are also punched on the opposite end surface of the rotary sealing ring 4, during assembly, a cylindrical pin with the diameter of phi 3mm is used for positioning between the fixed outer ring 2 and the rotary sealing ring 4, and the number of the cylindrical pins can be determined through calculation and field test verification according to the holding force of the rotary sealing lip and the rotary shaft 1 and the strength of the cylindrical pins.
During operation, air is sucked from a first air inlet In1 and a second air inlet In2 shown In the figure, and the rotary sealing rings 4 on two sides of the fixed outer ring 2 block two end faces of the outer ring and prevent air leakage. Therefore, the gas is directly introduced from the air chamber formed by the fixed outer ring 2 and the rotating seal ring 4 at both ends into the first outlet port Out1 and the second outlet port Out2, and then is supplied into the forming drum.
The embodiments in the present description are described in a parallel or progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a rotary sealing device, its characterized in that, is including fixed outer lane (2) and two rotary seal circle (4), two rotary seal circle (4) respectively through the fastener set up in fixed outer lane (2) both ends inner wall to guarantee with rotation axis (1) after the assembly fixed outer lane (2) both ends shutoff are airtight.
2. The rotary seal device according to claim 1, wherein the fixed outer ring (2) and the two rotary seal rings (4) are provided with positioning holes (201) at their connecting surfaces, and the fastening member fastens the fixed outer ring (2) and the rotary seal rings (4) through the positioning holes.
3. The rotary seal assembly of claim 1 or 2 wherein the fastener is a dowel or a wedge.
4. Building drum comprising a rotating shaft (1) and a rotary sealing device fitted over the rotating shaft (1), characterized in that the rotary sealing device is a rotary sealing device according to any one of claims 1-3.
5. Building drum according to claim 4, characterized in that the stationary outer ring (2) is arranged on the rotating shaft (1) by means of bearings (3).
6. Building drum according to claim 5, wherein the rotary sealing means are a plurality of coaxial rotary sealing means arranged side by side, two rotary sealing rings (4) being provided on each fixed outer ring (2), one bearing (3) being provided at each end of the overall seal formed by the plurality of rotary sealing means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911188505.4A CN110762219A (en) | 2019-11-28 | 2019-11-28 | Rotary sealing device and forming drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911188505.4A CN110762219A (en) | 2019-11-28 | 2019-11-28 | Rotary sealing device and forming drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110762219A true CN110762219A (en) | 2020-02-07 |
Family
ID=69339699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911188505.4A Pending CN110762219A (en) | 2019-11-28 | 2019-11-28 | Rotary sealing device and forming drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110762219A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754575A (en) * | 2022-04-19 | 2022-07-15 | 上海电气集团股份有限公司 | Rotary kiln device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103171163A (en) * | 2011-12-22 | 2013-06-26 | 软控股份有限公司 | Pneumatic sealing assembly of molding drum transmission box and method thereof |
| CN106142607A (en) * | 2015-04-04 | 2016-11-23 | 青岛软控机电工程有限公司 | Air supply control device for main drum driving box of forming machine |
| CN107471704A (en) * | 2017-09-22 | 2017-12-15 | 青岛软控机电工程有限公司 | A kind of feeder for assembly drum |
| CN107965589A (en) * | 2017-11-21 | 2018-04-27 | 江苏通用科技股份有限公司 | A kind of forming machine rotary valve device with defencive function of collaborating |
| CN210920117U (en) * | 2019-11-28 | 2020-07-03 | 软控股份有限公司 | Rotary sealing device and forming drum |
-
2019
- 2019-11-28 CN CN201911188505.4A patent/CN110762219A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103171163A (en) * | 2011-12-22 | 2013-06-26 | 软控股份有限公司 | Pneumatic sealing assembly of molding drum transmission box and method thereof |
| CN106142607A (en) * | 2015-04-04 | 2016-11-23 | 青岛软控机电工程有限公司 | Air supply control device for main drum driving box of forming machine |
| CN107471704A (en) * | 2017-09-22 | 2017-12-15 | 青岛软控机电工程有限公司 | A kind of feeder for assembly drum |
| CN107965589A (en) * | 2017-11-21 | 2018-04-27 | 江苏通用科技股份有限公司 | A kind of forming machine rotary valve device with defencive function of collaborating |
| CN210920117U (en) * | 2019-11-28 | 2020-07-03 | 软控股份有限公司 | Rotary sealing device and forming drum |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754575A (en) * | 2022-04-19 | 2022-07-15 | 上海电气集团股份有限公司 | Rotary kiln device |
| CN114754575B (en) * | 2022-04-19 | 2023-08-08 | 上海电气集团股份有限公司 | Rotary kiln device |
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