CN110486455B - Speed reducer sealing structure and speed reducer - Google Patents
Speed reducer sealing structure and speed reducer Download PDFInfo
- Publication number
- CN110486455B CN110486455B CN201910864888.6A CN201910864888A CN110486455B CN 110486455 B CN110486455 B CN 110486455B CN 201910864888 A CN201910864888 A CN 201910864888A CN 110486455 B CN110486455 B CN 110486455B
- Authority
- CN
- China
- Prior art keywords
- speed reducer
- sealing structure
- lid
- ring
- coal dust
- 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.)
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- 238000007789 sealing Methods 0.000 title claims abstract description 76
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 61
- 239000002817 coal dust Substances 0.000 claims abstract description 31
- 230000002265 prevention Effects 0.000 claims abstract description 11
- 230000003068 static effect Effects 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 6
- 239000004917 carbon fiber Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 239000011164 primary particle Substances 0.000 claims description 3
- 239000011163 secondary particle Substances 0.000 claims description 3
- 239000003245 coal Substances 0.000 abstract description 8
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 239000013618 particulate matter Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000010883 coal ash Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
-
- 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
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/38—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member sealed by a packing
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02069—Gearboxes for particular applications for industrial applications
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Gasket Seals (AREA)
Abstract
The invention belongs to the technical field of coal, and discloses a speed reducer sealing structure and a speed reducer. Compared with the prior art, the novel coal dust prevention sealing assembly is added, so that coal dust can be effectively prevented from entering the working space of the mechanical end face sealing assembly, the working environment of the mechanical end face sealing assembly can be effectively improved, the service life of the mechanical end face sealing assembly is prolonged, the reliability of the whole sealing system and the speed reducer is improved, and the novel coal dust prevention sealing assembly is suitable for coal industries with severe working conditions. The sealing reliability of the speed reducer is improved, and the service life of the speed reducer is prolonged.
Description
Technical Field
The invention relates to the technical field of coal, in particular to a speed reducer sealing structure and a speed reducer.
Background
The speed reducer for the coal industry has bad working condition and high requirement on the speed reducer. The scraper conveyor speed reducer generally operates under the mine, coal dust is serious in an operating environment, the service life of a common sealing mode is short, oil leakage is often found under the mine, and the scraper conveyor speed reducer is difficult to repair in a short time.
At present, two sealing modes commonly used in the industry mainly exist: one is to use the oil seal to seal, this structure is simpler, easy to assemble, but the sealed effect is very undesirable, the general life is about 3 months, will appear leaking the phenomenon seriously; the other is to use a mechanical end face sealing part, so that the sealing reliability of the structure is improved, the service life is slightly longer than that of the first mode, and the leakage phenomenon still exists. The structure is disassembled, so that the inside of the sealing cavity of the speed reducer is filled with oil sludge formed by coal, and the sealing scheme is disabled due to excessive oil sludge.
Therefore, it is highly desirable to provide a speed reducer sealing structure and a speed reducer suitable for the coal industry with high reliability.
Disclosure of Invention
An object of the present invention is to provide a seal structure for a speed reducer, which has high reliability and can extend the service life of the whole seal system and the speed reducer.
To achieve the purpose, the invention adopts the following technical scheme:
The utility model provides a speed reducer sealing structure, includes supporting part, rotary part, quiet ring pass through lid, moving ring pass through lid and mechanical end face seal assembly, quiet ring pass through the lid install in on the supporting part, moving ring pass through the lid install in on the rotary part, quiet ring pass through the lid with moving ring pass through the lid relative setting, mechanical end face seal assembly installs quiet ring pass through the lid with moving ring pass through between the lid, still include and prevent coal dust seal assembly, prevent coal dust seal assembly install in moving ring pass through to cover, prevent coal dust seal assembly's outer circle terminal surface with quiet ring pass through lid butt, prevent coal dust seal assembly is used for preventing coal dust entering mechanical end face seal assembly.
As the preferable technical scheme of above-mentioned speed reducer seal structure, prevent coal dust seal assembly includes along perpendicular to the primary seal structure and the secondary seal structure of speed reducer's spindle direction interval setting, the secondary seal structure sets up in being close to spindle one side, the primary seal structure is used for blocking the passage of primary particulate matter, the secondary seal structure is used for blocking the passage of secondary particulate matter, the particle diameter of primary particulate matter is greater than the particle diameter of secondary particulate matter.
As the preferable technical scheme of the speed reducer sealing structure, the primary sealing structure is carbon fiber filler, and the secondary sealing structure is FEY sealing baffle rings.
As the preferable technical scheme of the speed reducer sealing structure, a first groove and a second groove are formed in one side, close to the stationary ring through cover, of the movable ring through cover at intervals, the primary sealing structure is arranged in the first groove, and the secondary sealing structure is arranged in the second groove.
As a preferable technical solution of the above-mentioned speed reducer sealing structure, the speed reducer sealing structure further includes an adjusting washer mounted on the rotating member, the adjusting washer being configured to be able to adjust an axial gap of the stationary ring transmission cover and the moving ring transmission cover.
As a preferable technical scheme of the speed reducer sealing structure, the stationary ring transparent cover is connected to the supporting component through a first bolt.
As a preferable technical scheme of the speed reducer sealing structure, the movable ring through cover is connected to the rotating component through a second bolt.
Another object of the present invention is to provide a speed reducer with improved sealing reliability and prolonged service life.
To achieve the purpose, the invention adopts the following technical scheme:
a speed reducer comprising a speed reducer sealing structure as described above.
Compared with the prior art, the invention has the advantages that:
The invention provides a speed reducer sealing structure, which comprises a supporting part, a rotating part, a static ring transparent cover, a dynamic ring transparent cover, a mechanical end face sealing assembly and a coal dust prevention sealing assembly, wherein the static ring transparent cover is arranged on the supporting part, the dynamic ring transparent cover is arranged on the rotating part, the static ring transparent cover and the dynamic ring transparent cover are oppositely arranged, the mechanical end face sealing assembly is arranged between the static ring transparent cover and the dynamic ring transparent cover, the coal dust prevention sealing assembly is arranged on the dynamic ring transparent cover, and the outer circle end face of the coal dust prevention sealing assembly is abutted with the static ring transparent cover. Compared with the prior art, the novel coal dust prevention sealing assembly is added, so that coal dust can be effectively prevented from entering the working space of the mechanical end face sealing assembly, the working environment of the mechanical end face sealing assembly can be effectively improved, the service life of the mechanical end face sealing assembly is prolonged, the reliability of the whole sealing system and the speed reducer is improved, and the novel coal dust prevention sealing assembly is suitable for coal industries with severe working conditions.
The speed reducer comprises the speed reducer sealing structure, the sealing reliability of the speed reducer is improved, and the service life of the speed reducer is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a sealing structure of a speed reducer according to an embodiment of the present invention.
In the figure:
1. A support member; 2. a rotating member; 3. a stationary ring cover; 4. a movable ring penetrating cover; 5. a mechanical end face seal assembly; 6. a primary sealing structure; 7. a secondary seal structure; 9. a first bolt; 10. a second bolt; 100. oil liquid; 200. coal dust.
Detailed Description
In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the invention more clear, the technical scheme of the invention is further described below by a specific embodiment in combination with the attached drawings.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
The present embodiment discloses a speed reducer sealing structure, which includes a support member 1, a rotary member 2, a stationary ring cover 3, a movable ring cover 4, and a mechanical end face sealing assembly 5, as shown in fig. 1. The bearing component 1 and the rotating component 2 are both connected to a crankshaft of the speed reducer, the static ring transparent cover 3 is arranged on the bearing component 1, the moving ring transparent cover 4 is arranged on the rotating component 2, the static ring transparent cover 3 and the moving ring transparent cover 4 are oppositely arranged and have adjustable gaps, the mechanical end face sealing component 5 is arranged between the static ring transparent cover 3 and the moving ring transparent cover 4, a sealing cavity is formed between the mechanical end face sealing component 5 and the static ring transparent cover 3 and the moving ring transparent cover 4, and the sealing cavity is filled with oil 100. Still further, the stationary ring cover 3 is connected to the support member 1 by a first bolt 9. The ring through cover 4 is connected to the rotary member 2 by a second bolt 10. The above structures are all existing structures in the prior art, and specific connection modes and positional relationships of the components in the speed reducer are not repeated here.
The speed reducer seal structure in this embodiment further includes a coal dust prevention seal assembly, as shown in fig. 1, which is mounted on the movable ring cover 4, and the outer circumferential end surface of the coal dust prevention seal assembly is abutted against the stationary ring cover 3, and the coal dust prevention seal assembly is used for preventing the coal dust 200 from entering the mechanical end surface seal assembly 5.
Specifically, prevent coal dust seal assembly includes primary seal structure 6 and secondary seal structure 7 that set up along the direction interval of the machine axis perpendicular to speed reducer, and secondary seal structure 7 sets up in being close to one side of the machine axis, and primary seal structure 6 is used for blocking the passage of primary particulate matter, and secondary seal structure 7 is used for blocking the passage of secondary particulate matter, and the particle diameter of primary particulate matter is greater than the particle diameter of secondary particulate matter. The primary particles and the secondary particles refer to dust particles in the coal dust 200.
Preferably, the primary sealing structure 6 in this embodiment may be a carbon fiber filler, and the secondary sealing structure 7 may be a FEY sealing baffle ring. The outer circular end face of the carbon fiber filler and the outer circular end face of the FEY sealing baffle ring are abutted against the static ring transparent cover 3. The carbon fiber filler can prevent massive coal ash from entering the working space of the mechanical end face seal assembly 5, and the FEY seal baffle ring can prevent small-particle coal ash from entering the working space of the mechanical end face seal assembly 5. Through setting up in the working space that can effectively block coal dust 200 entering mechanical end face seal assembly 5 of different particle diameters of twice seal, improved the filter effect of coal dust 200 to can effectively improve the operational environment of mechanical end face seal assembly 5, improve its reliability, and then prolong the life of whole sealing system and speed reducer.
Further, a first groove and a second groove are arranged on one side, close to the static ring through cover 3, of the dynamic ring through cover 4 at intervals, carbon fiber filler is arranged in the first groove, and FEY sealing baffle rings are arranged in the second groove. Through setting up the recess, can improve FEY seal and keep off the installation fastness of ring and FEY seal and keep off the ring, be favorable to guaranteeing the life of speed reducer.
In the present embodiment, the speed reducer seal structure further includes an adjustment washer mounted on the rotary member 2 and sleeved on the second bolt 10, the purpose of the adjustment washer being to adjust the axial gap between the stationary ring cover 3 and the moving ring cover 4. This structure is a structure already existing in the prior art and will not be described here in detail.
The embodiment also provides a speed reducer, which comprises the speed reducer sealing structure. The speed reducer has the speed reducer sealing structure provided by the embodiment, so that the reliability of the speed reducer is obviously improved, the service life of the speed reducer is prolonged, and the speed reducer is suitable for being applied to the coal industry with severe working conditions.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (4)
1. The utility model provides a speed reducer sealing structure, includes supporting part (1), rotating part (2), quiet ring pass through lid (3), moving ring pass through lid (4) and mechanical end face seal assembly (5), quiet ring pass through lid (3) install in on supporting part (1), moving ring pass through lid (4) install in on rotating part (2), quiet ring pass through lid (3) with moving ring pass through lid (4) set up relatively, mechanical end face seal assembly (5) install in quiet ring pass through lid (3) with moving ring pass through between lid (4), characterized in that still includes the coal dust seal assembly, the coal dust seal assembly of preventing installs in moving ring pass through lid (4), the outer disc of coal dust seal assembly with quiet ring pass through lid (3) butt, the coal dust seal assembly of preventing is used for preventing coal dust (200) entering mechanical end face seal assembly (5);
The coal dust prevention sealing assembly comprises a primary sealing structure (6) and a secondary sealing structure (7) which are arranged at intervals along the direction perpendicular to the shaft of the speed reducer, wherein the secondary sealing structure (7) is arranged on one side close to the shaft, the primary sealing structure (6) is used for blocking the passage of primary particles, the secondary sealing structure (7) is used for blocking the passage of secondary particles, and the particle size of the primary particles is larger than that of the secondary particles;
The primary sealing structure (6) is carbon fiber filler, and the secondary sealing structure (7) is FEY sealing baffle rings;
A first groove and a second groove are formed in one side, close to the static ring through cover (3), of the dynamic ring through cover (4) at intervals, the primary sealing structure (6) is arranged in the first groove, and the secondary sealing structure (7) is arranged in the second groove;
the speed reducer sealing structure further comprises an adjusting gasket mounted on the rotating component (2), wherein the adjusting gasket is configured to be capable of adjusting axial gaps of the static ring transparent cover (3) and the dynamic ring transparent cover (4).
2. The speed reducer seal structure according to claim 1, characterized in that the stationary ring-transparent cover (3) is connected to the supporting member (1) by a first bolt (9).
3. The speed reducer seal structure according to claim 1, wherein the movable ring cover (4) is connected to the rotating member (2) by a second bolt (10).
4. A speed reducer comprising the speed reducer sealing structure according to any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910864888.6A CN110486455B (en) | 2019-09-12 | 2019-09-12 | Speed reducer sealing structure and speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910864888.6A CN110486455B (en) | 2019-09-12 | 2019-09-12 | Speed reducer sealing structure and speed reducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110486455A CN110486455A (en) | 2019-11-22 |
| CN110486455B true CN110486455B (en) | 2024-04-23 |
Family
ID=68557807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910864888.6A Active CN110486455B (en) | 2019-09-12 | 2019-09-12 | Speed reducer sealing structure and speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110486455B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5909878A (en) * | 1996-02-15 | 1999-06-08 | Feodor Burgmann Dichtungswerke Gmbh & Co. | Mechanical face seal assembly |
| CN103287209A (en) * | 2012-02-24 | 2013-09-11 | 通用电气公司 | Sealing body, sealing equipment and sealing method |
| CN203477273U (en) * | 2013-07-09 | 2014-03-12 | 朱兴生 | Seal structure for pumping unit reducer shaft head |
| CN105003640A (en) * | 2015-07-30 | 2015-10-28 | 宁波东力齿轮箱有限公司 | Lubricating and sealing structure of speed reducer input shaft |
| WO2016124021A1 (en) * | 2015-02-02 | 2016-08-11 | 江苏鹏飞集团股份有限公司 | Stationary sealing plate, movable sealing plate, and labyrinth sealing apparatus of shaking apparatus for use in dusty environment |
| CN211009835U (en) * | 2019-09-12 | 2020-07-14 | 南京高精齿轮集团有限公司 | Speed reducer sealing structure and speed reducer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030098132A1 (en) * | 2001-11-28 | 2003-05-29 | Mansdorfer Gary A. | Mechanical face seal for materials handling apparatus |
-
2019
- 2019-09-12 CN CN201910864888.6A patent/CN110486455B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5909878A (en) * | 1996-02-15 | 1999-06-08 | Feodor Burgmann Dichtungswerke Gmbh & Co. | Mechanical face seal assembly |
| CN103287209A (en) * | 2012-02-24 | 2013-09-11 | 通用电气公司 | Sealing body, sealing equipment and sealing method |
| CN203477273U (en) * | 2013-07-09 | 2014-03-12 | 朱兴生 | Seal structure for pumping unit reducer shaft head |
| WO2016124021A1 (en) * | 2015-02-02 | 2016-08-11 | 江苏鹏飞集团股份有限公司 | Stationary sealing plate, movable sealing plate, and labyrinth sealing apparatus of shaking apparatus for use in dusty environment |
| CN105003640A (en) * | 2015-07-30 | 2015-10-28 | 宁波东力齿轮箱有限公司 | Lubricating and sealing structure of speed reducer input shaft |
| CN211009835U (en) * | 2019-09-12 | 2020-07-14 | 南京高精齿轮集团有限公司 | Speed reducer sealing structure and speed reducer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110486455A (en) | 2019-11-22 |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200511 Address after: No. 79 Jianheng Road, Jiangning District, Nanjing City, Jiangsu Province, 210012 Applicant after: NANJING HIGH-SPEED & ACCURATE GEAR GROUP Co.,Ltd. Address before: No. 79 Jianheng Road, Jiangning District, Nanjing City, Jiangsu Province, 210012 Applicant before: NANJING HIGH-SPEED & ACCURATE GEAR GROUP Co.,Ltd. Applicant before: Nanjing High Precision Transmission Equipment Manufacturing Group Co.,Ltd. |
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