CN109139759A - A kind of the traction flexural pivot and axial rigidity adjusting method of adjustable axial rigidity - Google Patents
A kind of the traction flexural pivot and axial rigidity adjusting method of adjustable axial rigidity Download PDFInfo
- Publication number
- CN109139759A CN109139759A CN201811299221.8A CN201811299221A CN109139759A CN 109139759 A CN109139759 A CN 109139759A CN 201811299221 A CN201811299221 A CN 201811299221A CN 109139759 A CN109139759 A CN 109139759A
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- Prior art keywords
- inner sleeve
- housing
- flexural pivot
- axial rigidity
- main body
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- 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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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
- F16F1/3842—Method of assembly, production or treatment; Mounting thereof
- F16F1/3856—Vulcanisation or gluing of interface between rigid and elastic sleeves
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
- F16F1/387—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type comprising means for modifying the rigidity in particular directions
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/06—Stiffness
- F16F2228/066—Variable stiffness
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Springs (AREA)
Abstract
A kind of the traction flexural pivot and axial rigidity adjusting method of adjustable axial rigidity will be embedded in the first inner sleeve in second, be embedded in the second housing outside first, blend rubber body sulfides the second inner sleeve and the first housing；Second inner sleeve includes the inner sleeve main body that section is triangle, and the difference for adjusting the minimum diameter value of inner sleeve main body maximum outside diameter value and the first housing is adjustable the axial rigidity of traction flexural pivot.The present invention can make the axial rigidity for drawing flexural pivot and torsion stiffness big, and radial rigidity and deflection stiffness are small.Rubber groove is all set in the two sides of rubber bodies, traction flexural pivot can be made to have big deflection angle.It is able to satisfy the structure without wheel axle bogie, to requirement of the traction flexural pivot in technology, performance.
Description
Technical field
The present invention relates to field of track traffic, and in particular to a kind of adjustable traction flexural pivot of rigidity.
Background technique
Spain TALGO is mainly engaged in the research and development of high-speed EMUs vehicle, and speed per hour covers 160 kilometers -350 kilometers, Er Qieqi
Major technique be without wheel axle bogie, it is entirely different with the conventional bogies such as BT, AT and domestic vehicle.It is such without wheel axle bogie
Maximum feature be exactly: 2 wheels of the same bogie can reduce wheeling edge wearing, pass through song with differential by orbital curve
Vehicle is more stable when line, but more severe to the various load working conditions of metal rubber piece simultaneously.
Structure without wheel axle bogie requires height to traction flexural pivot in technology, performance, traction flexural pivot is required in rigidity
Axial rigidity and torsion stiffness it is big, and radial rigidity and deflection stiffness are small, and traction flexural pivot is also required to have big deflection
Angle.Same structure product is needed for different location, therefore is required to the bearing capacity of product all directions higher, is needed
Meet four rigidity and harsh multinomial fatigue condition requirement, product design and development difficulty is very big.In product design and development
Meet rigidity property requirement by using a variety of innovative designs of proximity rubber quasi spline and improves fatigue life simultaneously.
Find that following patent and the present invention have similarity by country's retrieval:
It is entitled " a kind of traction flexural pivot nonlinear variable-stiffness method and I-shaped bushing " application No. is " 201810127673.1 "
Disclosure of the invention a kind of traction flexural pivot nonlinear variable-stiffness method and I-shaped bushing, the rubber-metal passed through in flexural pivot vulcanizes
The nonlinear variable-stiffness of flexural pivot is realized in the deformation of body；Rubber-metal vulcanizes the rubber-metal composite members that body is I-shaped bushing, rubber
The inner sleeve of glue metal composite part is I-shaped shape, and inner sleeve covers on mandrel, the both ends of I-shaped shape inner sleeve have respectively rubber with
Metal vulcanizes the radial rubber-metal to be formed vulcanization complex；The housing of I-shaped rubber-metal vulcanization body is divided into two sections, respectively
Positioned at the both ends of I-shaped rubber-metal vulcanization body, the housing of radial rubber-metal vulcanization complex is formed with the vulcanization of rubber, two
Section housing is fitted in axial ends in outer casing sleeve by interference fit, forms two-period form radial direction rubber-metal compound spherical hinge, and
An enclosure space is reserved in the centre of two-period form radial direction rubber-metal compound spherical hinge, it is compound by two-period form radial direction rubber-metal
Flexural pivot realizes the nonlinear variable-stiffness adjustment of flexural pivot.
Application No. is " 201810127674.6 ", entitled " a kind of traction flexural pivot nonlinear variable-stiffness method of adjustment and ball
A kind of traction flexural pivot nonlinear variable-stiffness method of adjustment of the disclosure of the invention of hinge " and traction flexural pivot, are handed over by adjusting track
The nonlinear variable-stiffness of the positional relationship adjustment rail traffic traction flexural pivot of the metalwork and rubber parts of logical traction flexural pivot, feature
Be: the nonlinear variable-stiffness adjustment that flexural pivot is drawn in rail traffic includes the radial variation rigidity tune for adjusting rail traffic traction flexural pivot
Whole and axial variation rigidity adjustment, it is real by adjusting the adjustment of radial variation rigidity and axial variation rigidity adjustment of rail traffic traction flexural pivot
The now nonlinear variable-stiffness of entire rail traffic traction flexural pivot.The present invention, which utilizes, adjusts the axial variation rigidity of flexural pivot, changes completely
The flexural pivot product for having become traditional is brought to the mentality of designing of bogie new by radially providing the thinking of non-linear rigidity
Mentality of designing has widened the design concept of bogie significantly, and having opened up new bogie assembling structure may.
Although above-mentioned patent and drawing and to traction flexural pivot and the technology contents of rigidity, it is without being embedded in the in second
In one inner sleeve, it is embedded in the second housing outside first, blend rubber body sulfides the second inner sleeve and the first housing；Second
Inner sleeve includes structure as inner sleeve main body of the section for triangle, is also had with the present invention in the method for stiffness tuning very big
Difference.
Summary of the invention
The technical problem to be solved by the present invention is the axial rigidity of traction flexural pivot how is improved, to meet without wheel axle steer
The demand for having big axial rigidity is required to traction flexural pivot in the high-speed EMUs vehicle driving process of frame structure.
With the above problem, technical solution proposed by the present invention is needle: a kind of axial rigidity adjusting method drawing flexural pivot, will
It is embedded in second in first inner sleeve, is embedded in the second housing outside first, blend rubber body is by the second inner sleeve and the first housing
It sulfides；Second inner sleeve includes the inner sleeve main body that section is triangle, is adjusted outside inner sleeve main body maximum outside diameter value and first
The difference of the minimum diameter value of set is adjustable the axial rigidity of traction flexural pivot.
Further, the minimum diameter by being set greater than the length of inner sleeve main body maximum outside diameter on the outside of the first housing
Length, when so that the relative displacement of axial direction occurring for the second inner sleeve and the first housing, rubber bodies can stress generate shearing shape
Become, inner sleeve main body can hinder the phase of the second inner sleeve in the axial direction with the first housing by hindering the shearing deformation of rubber bodies
To displacement, play the role of the axial rigidity for adjusting traction flexural pivot, the minimum diameter of inner sleeve main body maximum outside diameter and the first housing
Length difference it is bigger, the axial rigidity for drawing flexural pivot is bigger.
Further, the section of inner sleeve main body is triangle, and the angle for adjusting the apex angle in the section of inner sleeve main body is adjustable
Draw the axial rigidity of flexural pivot.
Further, the angle of the apex angle in the section of inner sleeve main body is bigger, and the axial rigidity for drawing flexural pivot is bigger.
Further, housing groove is provided on the inside of the first housing, the length for adjusting housing groove axial direction is adjustable
Draw the axial rigidity of flexural pivot.
Further, the length of housing groove axial direction is bigger, draws the axial rigidity of flexural pivot with regard to smaller, and housing is recessed
The length of slot axial direction is smaller, and the axial rigidity for drawing flexural pivot is bigger.
Further, the first inner sleeve, the second inner sleeve, the first housing and the second housing have carried out precompressed to rubber bodies together
Contracting, the axial rigidity of traction flexural pivot can be increased by increasing pre compressed magnitude.
A kind of traction flexural pivot of adjustable axial rigidity, including the first inner sleeve, the second inner sleeve, rubber bodies, the first housing and
Second housing is embedded in the first inner sleeve in second, is embedded in the second housing outside first, and rubber bodies are by the second inner sleeve and first
Housing sulfides；Second inner sleeve includes the inner sleeve main body that section is triangle, and the length of inner sleeve main body maximum outside diameter is big
The length of minimum diameter on the outside of the first housing.
Further, groove is equipped in the first inner sleeve, the second inner sleeve further includes bottom plate, and the bottom plate of the second inner sleeve is embedded in first
In the groove of inner sleeve；The boss of protrusion is additionally provided at the top of inner sleeve main body, the top of boss is arc surface.
Further, groove is equipped in the second housing, the two sides at the top of the first housing are provided with notch, by the second housing
Groove and the notch in the first housing cooperation, will be embedded in the second housing outside first；The centre of first jacket bottom is set
There is housing groove, the two sides of the first jacket bottom are equipped with outer bevel edge；Rubber bodies vulcanize the rubber between the second inner sleeve and the first housing
The two sides of colloid are designed with rubber groove.
The invention has the advantages that being embedded in of the invention second in first inner sleeve, it is embedded in the second housing outside first,
Blend rubber body sulfides the second inner sleeve and the first housing.Second inner sleeve includes the inner sleeve main body of protrusion, inner sleeve master
The boss of protrusion is additionally provided at the top of body, the top of boss is arc surface.So that the axial rigidity and torsion stiffness of traction flexural pivot
Greatly, and radial rigidity and deflection stiffness are small.And all set rubber groove in the two sides of rubber bodies, can make to draw flexural pivot have it is big inclined
Gyration.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view one of embodiment one；
Fig. 2 is the schematic cross-sectional view two of embodiment one；
Fig. 3 is the schematic cross-sectional view three of embodiment one；
In figure: 1 first inner sleeve, 2 second inner sleeves, 21 bottom plates, 22 inner sleeve main bodys, 221 boss, 3 rubber bodies, 4 first housings, outside 41
Cover groove, 42 outer right-angle sides, 5 second housings, bevel edge, 7 outer bevel edges, 8 rubber grooves in 6.
Specific embodiment
The description of a step is done to the present invention below with reference to embodiment and attached drawing:
Embodiment one
Traction flexural pivot be rotary body, draw the section of flexural pivot as shown in Figure 1, traction flexural pivot include the first inner sleeve 1, the second inner sleeve 2,
Rubber bodies 3, the first housing 4 and the second housing 5.The section of first inner sleeve 1 is T font, the first inner sleeve 1 assembling of two T fonts
The section formed together is the " I " fonts in Fig. 1.And the both ends of the first inner sleeve 1 have carried out bending, and formation is fluted, and second
Inner sleeve 2 enables the first inner sleeve 1 that the second inner sleeve 2 is prevented to move in the axial direction in the groove of the first inner sleeve 1.
Second inner sleeve 2 includes bottom plate 21 and inner sleeve main body 22, and bottom plate 21 and the seamless connection of inner sleeve main body 22 are at an entirety.
Bottom plate 21 is circular tube shaped, and the section of inner sleeve main body 22 is triangle, and is equipped with boss 221, boss at the top of triangular-section
It is rectangle below 221 section, top is arc-shaped.
Groove is equipped in second housing 5, the two sides at 4 top of the first housing are provided with notch, pass through the groove in the second housing 5
With the cooperation of the notch in the first housing 4, the first housing 4 is embedded in the second housing 5.The centre of first housing, 4 bottom is equipped with
The two sides of housing groove 41,4 bottom of the first housing are equipped with outer bevel edge 7.The vulcanization of rubber bodies 3 the second inner sleeve 2 and the first housing 4 it
Between, the two sides of rubber bodies 3 are designed with rubber groove 8.
As shown in Fig. 2, 22 maximum outside diameter of inner sleeve main body is H1 in figure, the minimum diameter in 4 outside of the first housing is H2, to be increased
The axial rigidity of large traction flexural pivot, i.e., the rigidity of transverse direction in figure.The length for making 22 maximum outside diameter of inner sleeve main body is needed to be greater than
The length of the minimum diameter in 4 outside of the first housing, i.e. H1 are greater than H2.In fact, the axial rigidity of traction flexural pivot is that have with bushing
Imitate what difference was directly linked, the effective difference of bushing are as follows: H1-H2/2.The effective difference of bushing is bigger, draws the axial rigidity of flexural pivot just
It is bigger.H3 in figure is mainly an amount related with radial rigidity.
The principle that the effective difference of bushing influences the axial rigidity of traction flexural pivot is: when the second inner sleeve 2 and the first housing 4 occur
When the relative displacement of axial direction, the meeting stress of rubber bodies 3 generates shearing deformation, and inner sleeve main body 22 can be by hindering rubber bodies 3
Shearing deformation hinders the relative displacement of the second inner sleeve 2 and the first housing 4 in the axial direction, plays the axis for adjusting traction flexural pivot
Effect to rigidity.
The inside of first housing 4 is provided with housing groove 41, and the length for adjusting 41 axial direction of housing groove is adjustable traction
The axial rigidity of flexural pivot.And the length of 41 axial direction of housing groove is bigger, draws the axial rigidity of flexural pivot with regard to smaller, and housing
The length of 41 axial direction of groove is smaller, and the axial rigidity for drawing flexural pivot is bigger.The length of 41 axial direction of housing groove in Fig. 2
Degree is L1, due to the second inner sleeve 2 and the first housing 4 generation axial direction relative displacement when, rubber in 41 axis of housing groove
3 stress of body generates shearing deformation.At this point, rubber bodies 3 only below 41 axis of housing groove prevent the degree of its deformation, and do not have
There is the rigid element as inner sleeve main body 22 to prevent it from generating deformation.Therefore, the rubber bodies 3 in 41 axis of housing groove be compared with
It is easy to produce deformation, axial rigidity herein is smaller.If the length of 41 axial direction of housing groove is that L1 is equal to zero, this
When, there is no housing groove 41 in the first housing 4, the axial rigidity for drawing flexural pivot will increase.
As shown in figure 3, the section of inner sleeve main body 22 is triangle, the angle energy of the apex angle in the section of inner sleeve main body 22 is adjusted
Adjust the axial rigidity of traction flexural pivot.The angle of the apex angle in the section of inner sleeve main body 22 is bigger, draws the axial rigidity of flexural pivot just
It is bigger.In the present embodiment, the section of inner sleeve main body 22 is an isosceles triangle, and the one of the angle value of the apex angle of isosceles triangle
Half is angle A.The angle of the namely central axes of inner sleeve main body 22 and interior bevel edge 6 is angle A, and central axes are the dotted line in Fig. 3.
When the value of angle A is bigger, in the case where the height of holding inner sleeve main body 22 is constant, the axial width of inner sleeve main body 22
Can be bigger, and the thickness of the rubber bodies 3 of 22 two sides of inner sleeve main body opposite can reduce, the rubber bodies 3 of 22 two sides of inner sleeve main body by
To axial direction active force when, deformation can reduce.That is, will increase axial rigidity.The outer bevel edge 7 of first housing 4 with
Angle between outer right-angle side 42 is angle B, and angle B is mainly amount related with radial rigidity.
As shown in Figure 1, being that rubber bodies 3 have been carried out with precompressed rubber bodies after precommpression when flexural pivot is drawn in assembling
3, by deformation is all less also easy to produce in all directions after external force, it will increase the rigidity of large traction flexural pivot all directions.Therefore, increase
Big pre compressed magnitude can also increase the axial rigidity of traction flexural pivot.
Embodiment two
The present embodiment and embodiment one the difference is that, do not set the boss 221 of protrusion at the top of inner sleeve main body 22, only
The top of inner sleeve main body 22 is fabricated to arc surface.Therefore, the effective difference of the bushing of the present embodiment refers to: 22 top of inner sleeve main body
The half of the difference of the length of the minimum diameter in 4 outside of the maximum length of arc surface and the first housing.
It will be apparent that without departing from the principles of the present invention, several improvement or modification made are regarded as this
The protection scope of invention.
Claims (10)
1. a kind of axial rigidity adjusting method for drawing flexural pivot, which is characterized in that the second inner sleeve (2) are embedded in the first inner sleeve (1)
In, for the first housing (4) in the second housing (5), blend rubber body (3) exists the second inner sleeve (2) and the first housing (4) vulcanization
Together；Second inner sleeve (2) includes the inner sleeve main body (22) that section is triangle, adjusts inner sleeve main body (22) maximum outside diameter value and the
The difference of the minimum diameter value of one housing (4) is adjustable the axial rigidity of traction flexural pivot.
2. a kind of axial rigidity adjusting method for drawing flexural pivot according to claim 1, which is characterized in that by by inner sleeve
The length of main body (22) maximum outside diameter is set greater than the length of the minimum diameter on the outside of the first housing (4), so that the second inner sleeve
(2) when the relative displacement of axial direction occurs with the first housing (4), rubber bodies (3) meeting stress generates shearing deformation, inner sleeve main body
(22) the second inner sleeve (2) and the first housing (4) can be hindered by hindering the shearing deformation of rubber bodies (3) in the axial direction
The axial rigidity for adjusting traction flexural pivot is played the role of in relative displacement, inner sleeve main body (22) maximum outside diameter and the first housing (4)
The difference of the length of minimum diameter is bigger, and the axial rigidity for drawing flexural pivot is bigger.
3. a kind of axial rigidity adjusting method for drawing flexural pivot according to claim 1, which is characterized in that inner sleeve main body
(22) section is triangle, and the angle for adjusting the apex angle in the section of inner sleeve main body (22) is adjustable the axial rigid of traction flexural pivot
Degree.
4. a kind of axial rigidity adjusting method for drawing flexural pivot according to claim 3, which is characterized in that inner sleeve main body
(22) angle of the apex angle in section is bigger, and the axial rigidity for drawing flexural pivot is bigger.
5. a kind of axial rigidity adjusting method for drawing flexural pivot according to claim 1, which is characterized in that the first housing
(4) it is provided on the inside of housing groove (41), the length for adjusting housing groove (41) axial direction is adjustable the axial direction of traction flexural pivot
Rigidity.
6. a kind of axial rigidity adjusting method for drawing flexural pivot according to claim 5, which is characterized in that housing groove
(41) length of axial direction is bigger, draws the axial rigidity of flexural pivot with regard to smaller, and the length of housing groove (41) axial direction
Smaller, the axial rigidity for drawing flexural pivot is bigger.
7. a kind of axial rigidity adjusting method for drawing flexural pivot as claimed in any of claims 1 to 6, feature exist
In the first inner sleeve (1), the second inner sleeve (2), the first housing (4) and the second housing (5) have carried out precompressed to rubber bodies (3) together
Contracting, the axial rigidity of traction flexural pivot can be increased by increasing pre compressed magnitude.
8. a kind of traction flexural pivot of adjustable axial rigidity, which is characterized in that including the first inner sleeve (1), the second inner sleeve (2), rubber
Colloid (3), the first housing (4) and the second housing (5), in the first inner sleeve (1), the first housing (4) is embedded in the second inner sleeve (2)
In second housing (5), rubber bodies (3) sulfide the second inner sleeve (2) and the first housing (4)；Second inner sleeve (2) includes cutting
Face is the inner sleeve main body (22) of triangle, and the length of inner sleeve main body (22) maximum outside diameter is greater than on the outside of the first housing (4) most
The length of small internal diameter.
9. a kind of traction flexural pivot of adjustable axial rigidity according to claim 8, which is characterized in that the first inner sleeve (1)
In be equipped with groove, the second inner sleeve (2) further includes bottom plate (21), and the bottom plate (21) of the second inner sleeve (2) is embedded in the recessed of the first inner sleeve (1)
In slot；The boss (221) of protrusion is additionally provided at the top of inner sleeve main body (22), the top of boss (221) is arc surface.
10. a kind of traction flexural pivot of adjustable axial rigidity according to claim 8, which is characterized in that the second housing (5)
In be equipped with groove, the two sides at the top of the first housing (4) are provided with notch, pass through the groove and the first housing (4) in the second housing (5)
In notch cooperation, by the first housing (4) in the second housing (5)；It is recessed that the centre of the first housing (4) bottom is equipped with housing
The two sides of slot (41), the first housing (4) bottom are equipped with outer bevel edge (7)；Rubber bodies (3) vulcanize outside the second inner sleeve (2) and first
It covers between (4), the two sides of rubber bodies (3) are designed with rubber groove (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811299221.8A CN109139759A (en) | 2018-11-02 | 2018-11-02 | A kind of the traction flexural pivot and axial rigidity adjusting method of adjustable axial rigidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811299221.8A CN109139759A (en) | 2018-11-02 | 2018-11-02 | A kind of the traction flexural pivot and axial rigidity adjusting method of adjustable axial rigidity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109139759A true CN109139759A (en) | 2019-01-04 |
Family
ID=64807326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811299221.8A Pending CN109139759A (en) | 2018-11-02 | 2018-11-02 | A kind of the traction flexural pivot and axial rigidity adjusting method of adjustable axial rigidity |
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| CN (1) | CN109139759A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201679893U (en) * | 2010-05-12 | 2010-12-22 | 株洲时代新材料科技股份有限公司 | Axially symmetrical precompression rubber joint |
| CN203511677U (en) * | 2013-11-04 | 2014-04-02 | 株洲时代新材料科技股份有限公司 | Spherical hinge supporting device for railway vehicle hauling mechanism |
| CN203844764U (en) * | 2014-03-25 | 2014-09-24 | 青岛宏达赛耐尔科技股份有限公司 | Articulated mechanism for low-floor railway vehicle |
| CN103527708B (en) * | 2013-09-24 | 2015-06-10 | 中国船舶重工集团公司第七一〇研究所 | Rotatable impact-resistant buffering mechanism |
| CN207594670U (en) * | 2017-11-06 | 2018-07-10 | 蔚来汽车有限公司 | Control arm bush |
-
2018
- 2018-11-02 CN CN201811299221.8A patent/CN109139759A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201679893U (en) * | 2010-05-12 | 2010-12-22 | 株洲时代新材料科技股份有限公司 | Axially symmetrical precompression rubber joint |
| CN103527708B (en) * | 2013-09-24 | 2015-06-10 | 中国船舶重工集团公司第七一〇研究所 | Rotatable impact-resistant buffering mechanism |
| CN203511677U (en) * | 2013-11-04 | 2014-04-02 | 株洲时代新材料科技股份有限公司 | Spherical hinge supporting device for railway vehicle hauling mechanism |
| CN203844764U (en) * | 2014-03-25 | 2014-09-24 | 青岛宏达赛耐尔科技股份有限公司 | Articulated mechanism for low-floor railway vehicle |
| CN207594670U (en) * | 2017-11-06 | 2018-07-10 | 蔚来汽车有限公司 | Control arm bush |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |
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| RJ01 | Rejection of invention patent application after publication |