CN207809409U - A kind of novel elastic clay core for drawing buffer unit - Google Patents
A kind of novel elastic clay core for drawing buffer unit Download PDFInfo
- Publication number
- CN207809409U CN207809409U CN201721206697.3U CN201721206697U CN207809409U CN 207809409 U CN207809409 U CN 207809409U CN 201721206697 U CN201721206697 U CN 201721206697U CN 207809409 U CN207809409 U CN 207809409U
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- elastic
- cylinder barrel
- buffer unit
- piston
- sealing structure
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Abstract
The application provides a kind of for draw the novel elastic clay core of buffer unit to include dust seal sleeve (1), the piston (2) with check valve, elastic cement core sealing structure (3), cylinder barrel (4) and elastic cement (5), it is characterized in that, piston (2) with check valve is mounted on by elastic cement core sealing structure (3) in cylinder barrel (4), the elastic cement (5) being full of in cylinder barrel (4), cylinder barrel (4) piston end outside setting dust seal sleeve (1).
Description
Technical field
The present invention relates to railway security field, especially a kind of novel elastic clay cores for drawing buffer unit.
Background technology
Buffer is the important component of railway locomotive, vehicle, it is set to locomotive and locomotive or locomotive and vehicle or vehicle
Between vehicle.In railway train operational process, buffer is used for transmitting the locomotive in train operation, the tractive force between vehicle
With impact force when brake force, marshalling even extension, elastic cement core is mounted in the non-linear elastic element in buffer, mainly
For improving the cushion performance of buffer.
Existing elastic cement core and friction mechanism matching performance are poor, cause draft gear reaction force at rating travel higher；Elastic cement
The sealing structure of core is defective, and clay is caused to be revealed, and buffer is caused to fail.Existing pure clay buffer structure static impedance power
Low, in long steep grade, effective cushion stroke reduces, and buffer capacity is caused to decline for train operation, and big longitudinal punching occurs in train
It is poor to car body protectiveness when dynamic.
Invention content
To overcome existing defect, the present invention to propose a kind of novel elastic clay core for drawing buffer unit.
A kind of novel elastic clay core for drawing buffer unit, including dust seal sleeve, the work with check valve
Plug, elastic cement core sealing structure, cylinder barrel and elastic cement, the piston with check valve pass through elastic cement core sealing structure
In cylinder barrel, dust seal sleeve is arranged in the elastic cement being full of in cylinder barrel, piston cylinder end outside.Elastic cement is logical
Cross the relative motion between piston and inner wall of cylinder, nonlinear dampling power generated by different annulus, by piston by its
It passes out.
Wherein, pressure-releasing chamber is arranged in the piston end with check valve, and pressure-releasing chamber is sealed by block, and steel is arranged in pressure-releasing chamber
Ball.At low temperatures, elastic cement viscosity increases, resistance increase when being replied to the left after piston elasticity of compression clay, at this time steel
Ball flicks to the right rapidly next time in differential pressure action, sticks on the left of block, and check valve is opened, and makes rapid release on the right side of piston, living
Plug drives piston rod quickly return to the left, improves the low temperature reseting performance of friction daub buffer
Wherein, elastic cement core sealing structure is located at cylinder barrel open end and seals cylinder barrel.
Wherein, include sealing ring, guide sleeve, tail-hood and supporting block inside elastic cement core sealing structure, wherein described
Sealing ring and guide sleeve are positioned by tail-hood and supporting block, and tail-hood is fixed on elastic cement core sealing structure by spring collar
It is interior.
Wherein, sealing ring is two, and guide sleeve is three；Twice O-ring seals are respectively set on sealing ring.Twice are O-shaped
Sealing ring has blocked the transmission of pressure, so that two layers of sealing is worked independently, increases reliability and the fatigue life of sealing structure；Its
In, the quantity of pressure-releasing chamber is multiple in the piston with check valve.
The present invention is changed using elastic cement in lower damping characteristic different in flow rate, and the bullet of nonlinear dampling feature structure is designed
Property clay core, the viscous friction of buffer friction mechanism is consumed energy process, is converted to viscous-soft buffering energy-consumption process, elastic gum
Loam core body makes the resistance of frictional buffer be automated toed respond under different operating modes, to obtain good buffering energy-consumption characteristic,
Meet the operation requirement of locomotive, vehicle.
Description of the drawings
Fig. 1 is elastic cement core schematic diagram.
Fig. 2 is elastic cement core sealed structural representation.
Fig. 3 is friction daub buffer schematic diagram.
Specific implementation mode
In the following with reference to the drawings and specific embodiments to a kind of novel elastic for drawing buffer unit provided by the invention
Clay core is described in detail.
Fig. 1 shows that a kind of novel elastic clay core for drawing buffer unit, including dust seal sleeve 1, band are single
To the piston 2 of valve, elastic cement core sealing structure 3, cylinder barrel 4 and elastic cement 5, the piston 2 with check valve passes through elastic gum
Loam core body sealing structure 3 is mounted in cylinder barrel 4, the elastic cement 5 being full of in cylinder barrel 4, and setting is dust-proof close on the outside of 4 piston end of cylinder barrel
Big envelope cylinder 1.
Fig. 2 shows pressure-releasing chamber 21 is arranged in 2 end of piston with check valve, and pressure-releasing chamber 21 is sealed by block 10, pressure-releasing chamber
Steel ball 11 is set in 21.
Elastic cement core sealing structure 3 is located at 4 open end of cylinder barrel and seals cylinder barrel 4.
3 inside of elastic cement core sealing structure includes sealing ring 6, guide sleeve 7, tail-hood 12 and supporting block 13, wherein institute
It states sealing ring 6 and guide sleeve 7 to position by tail-hood 12 and supporting block (13), tail-hood 12 is fixed on elastic gum by spring collar 9
In loam core body sealing structure 3.
Sealing ring 6 is two, and guide sleeve 7 is three；Twice O-ring seals 8 are inlayed on sealing ring 6 respectively.
The quantity of pressure-releasing chamber 21 is multiple in piston 2 with check valve.
Fig. 3 shows, elastic cement core is installed on locomotive, in vehicle friction buffer, and body is located in draft gear housing 14
Lower center position, bottom surface are bonded with 14 inner bottom surface of draft gear housing, the lower ball face paste of top spherical surface and spring base 16
Merge servo-actuated.It is used in parallel with the groups of springs 17 in buffer, by the nonlinear dampling power of its generation, by buffer rubbing machine
The viscous friction energy consumption process of structure 15, is converted to viscous-soft buffering energy-consumption process.
The present invention provides a kind of elastic cement core, and mechanism is：Piston assembly 2 is pressed into cylinder barrel 4, by cylinder barrel
The volume compression for the elastic cement 5 being full of in 4 makes the pressure of the elastic cement 5 in cylinder barrel 4 rise by predetermined design rigidity, from
And the static constraint reaction for making piston rod extract rises, and achievees the purpose that energy storage；When having compression speed, elastic cement 5 exists
When by annulus between 4 inner wall of piston 2 and cylinder barrel, high pressure chest is formed in the front end face of moving piston 2, in moving piston
2 rear end face forms low pressure chamber, generates pressure difference.When having compression speed, dynamic pressure is passed out by piston rod simultaneously, this
When dynamic pressure increase with the raising of press-in speed.Since energy will be stored when the elastic cement in cylinder barrel 4 is compressed, promote
Piston assembly 2 is set to have rebound trend, when it is zero to compress kinetic energy, piston assembly 2 starts to rebound.It is living when speed very little
The elastic force of plug assembly 2 by core the static rebound force curve rebound (pressure of elastic cement quiet rubbing of only overcoming in system
Wipe the static bounce that power is formed), when there is speed rebound, the check valve on piston 2 is opened, and the rebound of piston assembly 2 is made
Damping reduces as far as possible, and piston assembly 2 is promoted to be replied by static state rebound force curve, to accelerate the rebound speed of core
Degree shortens the rebound time, improves the response coefficient of buffer system.Simultaneously because rebound process eliminates damping action,
The energy expenditure for reducing elastic cement core itself, reduces Wen Sheng, and important work has also been played to the overheating protection of sealing
With.
The elastic cement core of the present invention makes elastic cement generate different damping forces by cylinder barrel variable diameter design, to
Formed nonlinear dampling force characteristic curve, the curve matched with the friction mechanism of buffer meet locomotive, vehicle bumper performance is wanted
It asks.
The novel sealing structure of elastic cement core is oriented to using double-layer seal and three groups of guide sleeves, increases sealing structure
Reliability and fatigue life；Sealing is packed into from cylinder cap opening end, solves diameter of piston rod and the radial thickness ratio of sealing
The installation problem sealed when very little；One-way valve structures, at low temperatures, elastic cement viscosity increase, living after check valve is opened
Stopper rod can returning quickly, improve friction daub buffer low temperature reseting performance.
The present invention is changed using elastic cement in lower damping characteristic different in flow rate, the nonlinear dampling feature structure of design
The viscous friction energy consumption process of buffer friction mechanism is converted to viscous-soft buffering energy-consumption process, elasticity by elastic cement core
Clay core makes the resistance of frictional buffer be automated toed respond under different operating modes, special to obtain good buffering energy-consumption
Property, meet the operation requirement of locomotive, vehicle.
Finally it should be noted that above example only to technical scheme of the present invention is described rather than to this technology method
It is limited, the present invention can above extend to other modifications, variation, application and embodiment, and therefore, it is considered that institute in application
There are such modification, variation, application, embodiment all within the scope of the spirit or teaching of the present invention.
Claims (6)
1. a kind of novel elastic clay core for drawing buffer unit, including dust seal sleeve (1), the work with check valve
Fill in (2), elastic cement core sealing structure (3), cylinder barrel (4) and elastic cement (5), which is characterized in that the piston with check valve
(2) it is mounted in cylinder barrel (4) by elastic cement core sealing structure (3), the elastic cement (5) being full of in cylinder barrel (4), cylinder barrel
(4) setting dust seal sleeve (1) on the outside of piston end.
2. the novel elastic clay core according to claim 1 for drawing buffer unit, which is characterized in that the band
Piston (2) end setting pressure-releasing chamber (21) of check valve, pressure-releasing chamber (21) are sealed by block (10), setting in pressure-releasing chamber (21)
Steel ball (11).
3. the novel elastic clay core according to claim 1 for drawing buffer unit, which is characterized in that the bullet
Property clay core sealing structure (3) is located at cylinder barrel (4) open end and seals cylinder barrel (4).
4. the novel elastic clay core according to claim 1 for drawing buffer unit, which is characterized in that the bullet
Property clay core sealing structure (3) inside include sealing ring (6), guide sleeve (7), tail-hood (12) and supporting block (13), wherein institute
It states sealing ring (6) and guide sleeve (7) to position by tail-hood (12) and supporting block (13), tail-hood (12) is solid by spring collar (9)
It is scheduled in elastic cement core sealing structure (3).
5. the novel elastic clay core according to claim 4 for drawing buffer unit, which is characterized in that described close
Seal (6) is two, and guide sleeve (7) is three；Twice O-ring seals (8) are inlayed on sealing ring (6) respectively.
6. the novel elastic clay core according to claim 2 for drawing buffer unit, which is characterized in that the band
The quantity of pressure-releasing chamber (21) is multiple in the piston (2) of check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721206697.3U CN207809409U (en) | 2017-09-20 | 2017-09-20 | A kind of novel elastic clay core for drawing buffer unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721206697.3U CN207809409U (en) | 2017-09-20 | 2017-09-20 | A kind of novel elastic clay core for drawing buffer unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207809409U true CN207809409U (en) | 2018-09-04 |
Family
ID=63335885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721206697.3U Ceased CN207809409U (en) | 2017-09-20 | 2017-09-20 | A kind of novel elastic clay core for drawing buffer unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207809409U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901699A (en) * | 2021-02-18 | 2021-06-04 | 西安托普森工业自动化有限公司 | Buffering element and power head buffering device with same |
-
2017
- 2017-09-20 CN CN201721206697.3U patent/CN207809409U/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901699A (en) * | 2021-02-18 | 2021-06-04 | 西安托普森工业自动化有限公司 | Buffering element and power head buffering device with same |
| CN112901699B (en) * | 2021-02-18 | 2024-04-12 | 刘小龙 | Buffer element and power head buffer device with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20210105 Decision number of declaring invalidation: 46219 Granted publication date: 20180904 |