CN207814396U - A kind of novel locomotive gear box combination sealing device - Google Patents
A kind of novel locomotive gear box combination sealing device Download PDFInfo
- Publication number
- CN207814396U CN207814396U CN201721209048.9U CN201721209048U CN207814396U CN 207814396 U CN207814396 U CN 207814396U CN 201721209048 U CN201721209048 U CN 201721209048U CN 207814396 U CN207814396 U CN 207814396U
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- Prior art keywords
- sealing
- pole shoe
- magnetic
- seal
- sealing ring
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
A kind of novel locomotive gear box combination sealing device belongs to rail vehicle power train technical field.The installing locomotive gear cases combination sealing arrangement of the present invention, including the babinet and axis that are connected on gear-box.This sealing device constitutes three-level sealing by felt seal, labyrinth seal and magnetic liquid.Radially the mutual gap of between cog is staggered for the axial section of labyrinth seal, and there are multigroup pole teeth for magnetic fluid sealing pole shoe.The non-contact seals of device reduce influence of the unsteadiness of wheels to sealing.Permanent magnet magnetizing direction is identical or on the contrary, the magnetic loop difference that different modes of emplacement is formed, according to circumstances selects rational permanent magnet modes of emplacement.Labyrinth seal and the ingenious combination of magnetic fluid sealing are made sealing reach zero leakage, installation, convenient disassembly are simple, improve locomotive deceleration case sealing structure, improve its sealing effect by the sealing device of the utility model.
Description
Technical field
The invention belongs to rail vehicle power train technical fields, close especially suitable for the gear-box under high speed, severe duty
Seal apparatus.
Background technology
Existing installing locomotive gear cases sealing mainly has mechanical seal, oil sealing or labyrinth sealing.
Mechanical seal is sealed as a kind of contact, compares east wind 4B locomotives and Shaoshan 4 that the typically current country uses
Electric locomotive.This mode initial stage still reaches sealing function, but time slightly long sealing material rubs when high-speed overload is run
It is larger, larger heat is generated, seal failure is easily caused.(《Shadow of the SS4 modified locomotive gear-box assembly technologies to oil leak
It rings》, rolling stock technique, the 6th phase in 2006).
The sealing of current electrically-driven diesel locomotive and electric locomotive upper gear box mostly uses oil sealing and labyrinth seal.Oil
Envelope is sealed as a kind of contact, is rubbed when high-speed overload is run larger, is generated larger heat, easily cause seal failure.
Labyrinth seal is the gear-box of east wind 4D series cabs than more typical application at home.This mode requires labyrinth clearance opposite
Stablize, but labyrinth seal can not accomplish zero leakage, it is very poor in the sealing effect of parking and startup stage, labyrinth seal and in high speed
Under operating condition, since lubricating oil temperature increases, viscosity reduction is also easy to leak.
Invention content
The technical problem to be solved in the invention is, to reduce the oil leak amount of existing locomotive deceleration case, to study locomotive deceleration
The sealing performance of case novel seal improves the sealing structure of novel seal, improves its sealing effect.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of novel locomotive gear box combination sealing device, constituting the device includes：It is felt seal component, permanent magnet, close
Seal-A, shaft, axle sleeve, magnetism-isolating loop, pole shoe, sealing ring-B, non-magnetic set, disc and gear box casing.
A kind of novel locomotive gear box combination sealing device, by felt seal, labyrinth seal and magnetic fluid sealing
Advantage is combined as a whole.Felt seal component can stop the leakage of the overwhelming majority as contact seal；And by labyrinth seal
With the ingenious combination of magnetic fluid sealing, sealing is set to reach zero leakage, while labyrinth seal enhances the anti-of magnetic fluid sealing
Pressure energy power.Magnetic fluid sealing is successfully applied to the close of electrically-driven diesel locomotive and electric locomotive gear box and bearing housing
Feng Zhong solves the sealing problem of gear-box oil leak.
The present invention compares possessed advantageous effect with prior art：The solution of the present invention fully considers the operation of locomotive
State, sealing is safe and reliable, and assembling, convenient disassembly are simple, by combination sealing mode, improves locomotive deceleration case sealing knot
Structure improves its sealing effect.
Description of the drawings
A kind of novel locomotive gear box combination sealing devices of Fig. 1；
Fig. 2 magnetic loops constitute sealing device；
Fig. 3 pole shoes and the partial enlarged view at shaft.
In Fig. 1：It is felt seal component 1, permanent magnet 2, sealing ring-A 3, shaft 4, axle sleeve 5, magnetism-isolating loop 6, pole shoe 7, close
Seal-B 8, non-magnetic set 9, disc 10, gear box casing 11.
Specific embodiment
Fig. 1 is the structure principle chart of invention, and using attached drawing as specific implementation mode, the invention will be further described.
A kind of novel locomotive gear box combination sealing device, such as Fig. 1, the device include：Felt seal component 1, permanent magnet
2, sealing ring-A 3, shaft 4, axle sleeve 5, magnetism-isolating loop 6, pole shoe 7, sealing ring-B 8, non-magnetic set 9, disc 10, gearhousing
Body 11.
Constitute the connection of the device each section：
Primary seal, felt and shaft are constituted by the mechanical seal cooperatively formed between felt seal component 1 and axle sleeve 5
4 be in direct contact makes most of lubricating oil be sealed；It is formed by permanent magnet 2, pole shoe 7, magnetism-isolating loop 6 and sealing ring-B 8
Magnetic fluid sealing constitute secondary seal, using the magnetic energy in permanent magnet 2, between the tooth form of 7 pole tooth tip of shaft 4 and pole shoe
Strong and weak alternate non-uniform magnetic-field is generated in gap, make magnetic liquid create antagonism pressure difference magnetic force so that reach balance, thus
Sealing is set to reach zero leakage；By the broach on axle sleeve 5 third level sealing, gas are constituted with the labyrinth seal that pole shoe 7 cooperatively forms
When passing through Labyrinth Leakage, kinetic energy is converted into interior energy, reduces leakage rate, can make in this way when magnetic liquid fails, sealing dress
Setting also has certain sealability, improves the safety of sealing device, enhances the anti-pressure ability of magnetic fluid sealing.
Sealing ring-A 3 is embedded in the groove in shaft 4, the shaft 4 with sealing ring-A is constituted；It is carried out using the shaft shoulder
Positioning, by axle sleeve 5 in shaft 4；Sealing ring-B 8 is embedded in the seal groove in 7 outer circle of pole shoe, band sealing ring-B is formed
8 pole shoe 7；Pole shoe 7 with sealing ring-B 8 is mounted on to the left and right end face of axle sleeve 5, while permanent magnet 2 is mounted on pole shoe 7
Between；The magnetic line of force reaches the pole tooth on pole shoe 7 from permanent magnet 2s, by pole shoe 7, then is returned by shaft 4, axle sleeve 5 by pole tooth
Into permanent magnet 2, the magnetic loop being closed is formed by permanent magnet 2, pole shoe 7, shaft 4 and axle sleeve 5, magnetic liquid is attracted to sealing
In gap, " O " type sealing ring is formed；The magnetism-isolating loop 6 of pole shoe 7 is fixed, axial float is prevented；By felt seal component 1
Mounted in the inner ring of non-magnetic set 9, play the role of the most lubricating oil of isolation.
Permanent magnet 2 selects neodymium iron boron；
Pole shoe 7, shaft 4 select the good material of magnetic property, such as electrical pure iron；
The type of magnetic liquid selects the magnetic liquid of different base load liquid according to the type of sealing medium.
Claims (1)
1. a kind of novel locomotive gear box combination sealing device, which is characterized in that the device includes：Felt seal component (1), forever
Magnet (2), sealing ring-A (3), shaft (4), axle sleeve (5), magnetism-isolating loop (6), pole shoe (7), sealing ring-B (8), non-magnetic set
(9), disc (10) gear box casing (11)；
Sealing ring-the A (3) is embedded in the groove on shaft (4) periphery, and sealing ring-B (8) is embedded in pole shoe (7) periphery
On seal groove in；
Axle sleeve (5) lower end directly processes comb structure, and the left end and right end of comb structure are staggered in mutual gap, by axis
The labyrinth seal that the comb structure of set (5) lower end is cooperatively formed with pole shoe (7)；
The sealing number of teeth of the comb structure is 7~12, and broach gap is 0.3mm~0.6mm；
The permanent magnet (2) is adsorbed between pole shoe (7), and pole shoe (7) carries out axial restraint with magnetism-isolating loop (6), by permanent magnet
(2), the magnetic fluid sealing that pole shoe (7), magnetism-isolating loop (6) and sealing ring-B (8) are formed；
It is clearance fit between the pole shoe (7) and shaft (4), is clearance fit between pole shoe (7) and axle sleeve (5)；
It is 3~6 that, which there are Rectongle Poleteeth Device, pole number of teeth mesh in the upper end of the pole shoe (7), full of magnetic liquid between pole shoe (7) and shaft (4)
Body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721209048.9U CN207814396U (en) | 2017-09-20 | 2017-09-20 | A kind of novel locomotive gear box combination sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721209048.9U CN207814396U (en) | 2017-09-20 | 2017-09-20 | A kind of novel locomotive gear box combination sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207814396U true CN207814396U (en) | 2018-09-04 |
Family
ID=63336195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721209048.9U Expired - Fee Related CN207814396U (en) | 2017-09-20 | 2017-09-20 | A kind of novel locomotive gear box combination sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207814396U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236996A (en) * | 2018-12-05 | 2019-01-18 | 飞翼股份有限公司 | A kind of gear-box |
| CN109322986A (en) * | 2018-12-05 | 2019-02-12 | 飞翼股份有限公司 | A kind of shaft end oil seal structure of gear-box |
| CN110701285A (en) * | 2019-11-13 | 2020-01-17 | 南京高速齿轮制造有限公司 | Gear box |
-
2017
- 2017-09-20 CN CN201721209048.9U patent/CN207814396U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236996A (en) * | 2018-12-05 | 2019-01-18 | 飞翼股份有限公司 | A kind of gear-box |
| CN109322986A (en) * | 2018-12-05 | 2019-02-12 | 飞翼股份有限公司 | A kind of shaft end oil seal structure of gear-box |
| CN110701285A (en) * | 2019-11-13 | 2020-01-17 | 南京高速齿轮制造有限公司 | Gear box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180904 Termination date: 20200920 |