CN109236996A - A kind of gear-box - Google Patents
A kind of gear-box Download PDFInfo
- Publication number
- CN109236996A CN109236996A CN201811479492.1A CN201811479492A CN109236996A CN 109236996 A CN109236996 A CN 109236996A CN 201811479492 A CN201811479492 A CN 201811479492A CN 109236996 A CN109236996 A CN 109236996A
- Authority
- CN
- China
- Prior art keywords
- oil sealing
- gear
- oil
- dynamic
- box
- 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
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a kind of gear-boxes, the gear-box includes at least one gear, rotary shaft and cabinet, the rotary shaft is mounted on the cabinet by bearing, the gear is mounted in the rotary shaft and is located in the cabinet, the rotary shaft at least one end is equipped with oil enveloping structure, the oil enveloping structure includes the Oil sealing assembly positioned at gear-box rotary shaft shaft end, the Oil sealing assembly includes dynamic Oil sealing assembly and quiet Oil sealing assembly, the dynamic Oil sealing assembly interts with the quiet Oil sealing assembly to be equipped with, wear-resisting ring is arranged in the rotary shaft, the dynamic Oil sealing assembly is mounted in gear-box transparent cover and is located on the outside of the wear-resisting ring, the dynamic Oil sealing assembly includes the first dynamic oil sealing and the second dynamic oil sealing, shaft end of the first dynamic oil sealing far from the rotary shaft is arranged close to bearing, axis of the second dynamic oil sealing close to the rotary shaft End setting.
Description
Technical field
The present invention relates to transmission technical fields, and in particular to a kind of gear-box.
Background technique
Gear-box is a kind of important transmission parts, and the lubricating system of gear-box has very the normal work of gear-box
Important meaning.In the reason of the gearbox failure, lack of lubrication has accounted for a greater part of.Currently, gear-box generallys use profession
Gear oil lubrication, but the problem of often leaked in use along with gear oil, as shown in Figure 1, the oil of gear-box
Seal structure includes static seal component and dynamic sealing assembly, and each static seal can be real by reasonable end face plane degree combination sealing element
Now reliable leak sealing effect, if shaft end static seal component generallys use O shape rubber seal, O shape rubber seal rings for seal performance is good,
Service life is long, compact-sized and convenient for disassembly and assembly, is not susceptible to leak；And dynamic sealing is many kinds of and due to there are relative motion, because
Usually there is easy oil leakage in this.Control for oil leak is always the research hotspot of machinery industry.Low-speed situations
Under, rotary lip-shaped sealed ring axial dimension and radial dimension are more compact, the processing is simple and sealing is tight, but sealing ring lip
One layer of stable hydrodynamic oil film is hardly formed between the interface of axis, oil film is too thick, and fluid will leak；And oil film is too
It is thin, fluid lubrication film cannot be formed, lip will be worn because of dry friction, and the two is difficult to take into account and cause oil leak,
Environment is not only polluted in oil leak, and oil level deficiency is also resulted in when leaking serious but will cause the service life of gear and bearing
It reduces, causes equipment fault, cause to shut down, stop production, cause huge economic losses to user.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of gear-box that oil enveloping structure sealing effect is good.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows: a kind of gear-box, the gear-box include
At least one gear, rotary shaft and cabinet, the rotary shaft are mounted on the cabinet by bearing, and the gear is mounted on institute
It states in rotary shaft and is located in the cabinet, the rotary shaft at least one end is equipped with oil enveloping structure, and the oil enveloping structure includes position
Oil sealing assembly in gear-box rotary shaft shaft end, the Oil sealing assembly include dynamic Oil sealing assembly and quiet Oil sealing assembly, the dynamic oil
Sealing assembly interts with the quiet Oil sealing assembly to be equipped with, and wear-resisting ring, the dynamic Oil sealing assembly peace are arranged in the rotary shaft
In gear-box transparent cover and it is located on the outside of the wear-resisting ring, the dynamic Oil sealing assembly includes the first dynamic oil sealing and the second dynamic oil
Envelope, shaft end of the first dynamic oil sealing far from the rotary shaft are arranged close to bearing, and the second dynamic oil sealing is close to the rotation
The shaft end of axis is arranged；
Oil trap and oil return line are additionally provided in the gear-box transparent cover, the oil trap is connected to the oil return line, described
First dynamic oil sealing and the second dynamic oil sealing respectively with the oil sump.
Further, the wear-resisting ring is chromium plating wear-resisting ring.
Preferably, the described first dynamic oil sealing is the secondary lip-type packing of band, and the second dynamic oil sealing is OR type rotating seal.
Preferably, the described first dynamic oil sealing is the secondary lip-type packing of band, and the second dynamic oil sealing is labyrinth seal ring.
Preferably, the quiet Oil sealing assembly includes the first quiet oil sealing and the second quiet oil sealing, and the first quiet oil sealing is mounted on
On the inside of wear-resisting ring, the cabinet of the second quiet oil sealing and gear-box is connected.
Preferably, the first quiet oil sealing and the second quiet oil sealing are O shape rubber seal.
Further, the oil return line is equipped with oil extraction portion, and the oil extraction portion is connected to box house.
Further, it is connected outside the oil return line and cabinet.
The beneficial effects of the present invention are: the gearbox oil seal sealing structure of the present invention program is good, can be to lubricating oil
Leakage, which is realized, preferably manages effect, reduces the probability of oil leak generation, thereby reduces since oil leak is led
Gear and the risks such as the reduction of bearing service life or equipment fault, improve production effect indirectly caused by the oil level of cause is insufficient
Benefit, meanwhile, it also can avoid environmental pollution caused by oil leak and generation phenomena such as influencing equipment aesthetics because of the generation of greasy dirt.
Detailed description of the invention
Fig. 1 is the fragmentary sectional view of the gear-box of one kind common in the art；
Fig. 2 is the fragmentary sectional view of the oil enveloping structure of the gear-box of the embodiment of the present invention；
Fig. 3 is the partial enlarged view of part A in Fig. 2.
Label declaration:
1, cabinet, 2, single-row tapered roller bearing；3, the first quiet oil sealing；4, gear-box transparent cover；5, wear-resisting ring；6, first is dynamic
Oil sealing；7, the second quiet oil sealing；8, rotary shaft；9, circlip for shaft；10, the second dynamic oil sealing；11, oil trap；12, oil return line.
Specific embodiment
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and cooperate attached
Figure is explained.
A kind of gear-box, the gear-box include at least one gear, rotary shaft and cabinet, and the rotary shaft passes through bearing
It is mounted on the cabinet, the gear is mounted in the rotary shaft and is located in the cabinet, the rotary shaft at least one
End is equipped with oil enveloping structure, and the oil enveloping structure includes the Oil sealing assembly positioned at gear-box rotary shaft shaft end, the Oil sealing assembly packet
Oil sealing assembly and quiet Oil sealing assembly are included, the dynamic Oil sealing assembly interts with the quiet Oil sealing assembly to be equipped with, the rotation
Wear-resisting ring is arranged on axis, the dynamic Oil sealing assembly is mounted in gear-box transparent cover and is located on the outside of the wear-resisting ring, described dynamic
Oil sealing assembly includes the first dynamic oil sealing and the second dynamic oil sealing, and shaft end of the first dynamic oil sealing far from the rotary shaft is close to bearing
Setting, the second dynamic oil sealing are arranged close to the shaft end of the rotary shaft；
Oil trap and oil return line are additionally provided in the gear-box transparent cover, the oil trap is connected to the oil return line, described
First dynamic oil sealing and the second dynamic oil sealing respectively with the oil sump.
As can be seen from the above description, the beneficial effects of the present invention are: the gearbox oil seal sealing structure of the present invention program
It is good, oil leak can be realized and preferably manage effect, reduce the probability of oil leak generation, thereby reduce by
Gear and the risks such as the reduction of bearing service life or equipment fault caused by the oil level caused by oil leak is insufficient, indirectly
Productivity effect is improved, meanwhile, it also can avoid environmental pollution caused by oil leak and influence equipment aesthetics because of the generation of greasy dirt
Phenomena such as generation.
Further, the wear-resisting ring is chromium plating wear-resisting ring.
As can be seen from the above description, the beneficial effects of the present invention are: it is coated with layers of chrome on wear-resisting ring, improves the resistance to of wear-resisting ring
Performance is ground, the chromium plating on wear-resistant sleeve reduces production cost compared to the chromium plating on the full part of gear shaft, and is easier to more after wearing
It changes；Chrome layer on wear-resisting ring covers the micro- lines of the machining on wear-resistant sleeve, avoids lubricating oil and is added by the machine of non-chromium plating
The micro- lines of work, which forms pumping effect, leads to oil leak, to further reduced the probability of oil leak generation, multiple-protection makes lubricating oil
Not only oil film is formed between static oil sealing and high-speed rotating axis but also is not made oil film too thick and is revealed.
Preferably, the described first dynamic oil sealing is the secondary lip-type packing of band, and the second dynamic oil sealing is OR type rotating seal.
Preferably, the described first dynamic oil sealing is the secondary lip-type packing of band, and the second dynamic oil sealing is labyrinth seal ring.
Further, the sealing ring of other forms can also be used in the first dynamic oil sealing and the second dynamic oil sealing.
Preferably, the quiet Oil sealing assembly includes the first quiet oil sealing and the second quiet oil sealing, and the first quiet oil sealing is mounted on
On the inside of wear-resisting ring, the cabinet of the second quiet oil sealing and gear-box is connected.
Further, the oil trap is between the described first dynamic oil sealing and the second dynamic oil sealing.
Preferably, the first quiet oil sealing and the second quiet oil sealing are O shape rubber seal.
Further, the oil return line is equipped with oil extraction portion, and the oil extraction portion is connected to box house.
Further, it is connected outside the oil return line and cabinet.
As can be seen from the above description, the beneficial effects of the present invention are: the lubricating oil of collection can both have been flowed back into tooth by oil return line
Recycling inside roller box, can also be led to outside gear-box by oil circuit and separately be collected.
The embodiment of the present invention one are as follows: a kind of gear-box, including multiple gears, rotary shaft 8 and cabinet 1, rotary shaft 8 pass through
One single-row tapered roller bearing 2 is mounted on cabinet 1, and gear installation is on rotating shaft 8 and in cabinet 1,8 both ends of rotary shaft
End is equipped with oil enveloping structure respectively, and referring to figure 2. and shown in Fig. 3, the oil enveloping structure includes being located at gear-box rotary shaft shaft end
Oil sealing assembly, Oil sealing assembly include dynamic Oil sealing assembly and quiet Oil sealing assembly, and dynamic Oil sealing assembly is set with the interspersed cooperation of quiet Oil sealing assembly
It sets, chromium plating wear-resisting ring 5 is arranged in rotary shaft 8,5 front of chromium plating wear-resisting ring is additionally provided with circlip for shaft 9 for limiting, it is ensured that
The fastness that chromium plating wear-resisting ring 5 is installed, dynamic Oil sealing assembly are mounted in gear-box transparent cover 4 and are located at 5 outside of chromium plating wear-resisting ring, move
Oil sealing assembly includes the first dynamic oil sealing 6 (the secondary lip-type packing of band) and the second dynamic oil sealing 10 (OR type rotating seal), and first is dynamic
Oil sealing 6 is arranged far from 8 shaft end of rotary shaft close to box bearing (single-row tapered roller bearing 11), and the second dynamic oil sealing 10 is close to rotation
The setting of 8 shaft end of shaft；Oil trap 11 and oil return line 12 are additionally provided in gear-box transparent cover 4, oil trap 11 is connected to oil return line 12, the
One dynamic oil sealing 6 and the second dynamic oil sealing 10 are connected to oil trap 11 respectively, and oil return line 12 can be connected with gear-box inside, can also
With gear-box outside be connected so that oil return line collection lubricating oil can be discharged into outside gear-box, can also directly recycle.
Quiet Oil sealing assembly includes the first quiet oil sealing 3 and the second quiet oil sealing 7, and the first quiet oil sealing 3 is mounted on the inside of wear-resisting ring, the
Two quiet oil sealings 7 are connect with the cabinet 1 of gear-box.First quiet oil sealing 3 and the second quiet oil sealing 7 are O shape rubber seal.Oil return line
It is equipped with oil extraction portion, oil return line leads to box house by oil extraction portion.
Sealing ring quantity in above-described embodiment before and after oil trap can also be further added by.
The embodiment of the present invention two are as follows: a kind of gear-box, the difference with embodiment one are: the second dynamic oil sealing 10 is fan
Palace sealing ring.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, similarly include
In scope of patent protection of the invention.
Claims (9)
1. a kind of gear-box, the gear-box includes at least one gear, rotary shaft and cabinet, and the rotary shaft is pacified by bearing
On the cabinet, the gear is mounted in the rotary shaft and is located in the cabinet, the rotary shaft at least one end
Equipped with oil enveloping structure, it is characterised in that: the oil enveloping structure includes the Oil sealing assembly positioned at gear-box rotary shaft shaft end, the oil
Sealing assembly includes dynamic Oil sealing assembly and quiet Oil sealing assembly, and the dynamic Oil sealing assembly interts with the quiet Oil sealing assembly to be equipped with,
Wear-resisting ring is arranged in the rotary shaft, the dynamic Oil sealing assembly is mounted in gear-box transparent cover and is located at outside the wear-resisting ring
Side, the dynamic Oil sealing assembly include the first dynamic oil sealing and the second dynamic oil sealing, the axis of the first dynamic oil sealing far from the rotary shaft
It holds and is arranged close to bearing, the second dynamic oil sealing is arranged close to the shaft end of the rotary shaft；
Oil trap and oil return line are additionally provided in the gear-box transparent cover, the oil trap is connected to the oil return line, and described first
Dynamic oil sealing and the second dynamic oil sealing respectively with the oil sump.
2. gear-box according to claim 1, it is characterised in that: the wear-resisting ring is chromium plating wear-resisting ring.
3. gear-box according to claim 1, it is characterised in that: the first dynamic oil sealing is the secondary lip-type packing of band, institute
Stating the second dynamic oil sealing is OR type rotating seal.
4. gear-box according to claim 1, it is characterised in that: the first dynamic oil sealing is the secondary lip-type packing of band, the
Two dynamic oil sealings are labyrinth seal ring.
5. gear-box according to claim 1, it is characterised in that: the oil trap is located at the described first dynamic oil sealing and second
Between dynamic oil sealing.
6. gear-box according to claim 1, it is characterised in that: the quiet Oil sealing assembly includes the first quiet oil sealing and second
Quiet oil sealing, the first quiet oil sealing are mounted on the inside of wear-resisting ring, and the cabinet of the second quiet oil sealing and gear-box connects.
7. gear-box according to claim 6, it is characterised in that: the first quiet oil sealing and the second quiet oil sealing are O shape rubber
Sealing ring.
8. gear-box according to claim 1, it is characterised in that: the oil return line is equipped with oil extraction portion, the oil extraction portion
It is connected to box house.
9. gear-box according to claim 1, it is characterised in that: be connected outside the oil return line and cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811479492.1A CN109236996A (en) | 2018-12-05 | 2018-12-05 | A kind of gear-box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811479492.1A CN109236996A (en) | 2018-12-05 | 2018-12-05 | A kind of gear-box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109236996A true CN109236996A (en) | 2019-01-18 |
Family
ID=65073886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811479492.1A Pending CN109236996A (en) | 2018-12-05 | 2018-12-05 | A kind of gear-box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109236996A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995004891A1 (en) * | 1993-08-10 | 1995-02-16 | United Technologies Corporation | Reverse pressure tolerant seal means |
| CN202381703U (en) * | 2011-12-22 | 2012-08-15 | 太原重工股份有限公司 | Reducer rotating shaft sealing device |
| CN103925373A (en) * | 2014-04-30 | 2014-07-16 | 湖北新置密封件有限公司 | Labyrinth type halt two-way sealing device |
| CN204201092U (en) * | 2014-10-31 | 2015-03-11 | 湖北新置密封件有限公司 | A kind of bi-directional combination ring gear seal arrangement |
| CN205278312U (en) * | 2015-12-28 | 2016-06-01 | 杭州杰牌传动科技有限公司 | Reducer shaft end movive seal protection architecture |
| CN207814396U (en) * | 2017-09-20 | 2018-09-04 | 北京交通大学 | A kind of novel locomotive gear box combination sealing device |
-
2018
- 2018-12-05 CN CN201811479492.1A patent/CN109236996A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995004891A1 (en) * | 1993-08-10 | 1995-02-16 | United Technologies Corporation | Reverse pressure tolerant seal means |
| CN202381703U (en) * | 2011-12-22 | 2012-08-15 | 太原重工股份有限公司 | Reducer rotating shaft sealing device |
| CN103925373A (en) * | 2014-04-30 | 2014-07-16 | 湖北新置密封件有限公司 | Labyrinth type halt two-way sealing device |
| CN204201092U (en) * | 2014-10-31 | 2015-03-11 | 湖北新置密封件有限公司 | A kind of bi-directional combination ring gear seal arrangement |
| CN205278312U (en) * | 2015-12-28 | 2016-06-01 | 杭州杰牌传动科技有限公司 | Reducer shaft end movive seal protection architecture |
| CN207814396U (en) * | 2017-09-20 | 2018-09-04 | 北京交通大学 | A kind of novel locomotive gear box combination sealing device |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190118 |