CN110329300B - Shaft box pull rod rubber joint and method for improving fatigue resistance - Google Patents
Shaft box pull rod rubber joint and method for improving fatigue resistance Download PDFInfo
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- CN110329300B CN110329300B CN201910675943.7A CN201910675943A CN110329300B CN 110329300 B CN110329300 B CN 110329300B CN 201910675943 A CN201910675943 A CN 201910675943A CN 110329300 B CN110329300 B CN 110329300B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
- B61F5/305—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating rubber springs
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Abstract
The invention relates to an axle box pull rod rubber joint which comprises an outer sleeve, a mandrel and a rubber layer, wherein the outer molded surface of the rubber layer is a large-opening close type molded surface consisting of an arc concave surface and an inclined surface, after the axle box pull rod rubber joint is radially pre-compressed, the arc concave surface can be partially overlapped with the inclined surface, and the arc concave surface is in a straight state, so that the molded surface at the outer end of the rubber layer can be uniformly stressed and does not have the phenomenon of repeated folding when the axle box pull rod rubber joint is loaded. The area of the overlapped part can be adjusted to obtain the best anti-fatigue performance by adjusting the radius of the arc concave surface and the angle of the inclined plane, and the anti-fatigue performance can be further improved by adjusting the radius of the spherical sections of the outer sleeve and the mandrel and increasing the thickness of the rubber layer.
Description
Technical Field
The invention relates to the technical field of locomotive vibration reduction, in particular to an axle box pull rod rubber joint and a method for improving fatigue resistance, wherein the axle box pull rod rubber joint and the method for improving fatigue resistance can effectively improve the cracking and aging phenomena of a rubber layer caused by uneven stress on the outer end molded surface of the axle box pull rod rubber joint rubber layer; belongs to the technical field of axle box pull rod rubber joint profile design.
Background
The axle box pull rod rubber joint is an important part in a locomotive bogie, one end of the axle box pull rod rubber joint is connected with an axle box pull rod, and the other end of the axle box pull rod rubber joint is connected with a vehicle body, when a vehicle body curve passes through or rolls over due to road jolt, the axle box pull rod rubber joint bears large load in all directions, the load stress continuously compresses and stretches a rubber layer in the axle box pull rod rubber joint to enable the rubber layer to deform under stress, and folding phenomenon occurs, for example, the outer end profile of the rubber layer is uneven in stress, so that a single area is folded repeatedly for a long time, the phenomenon of cracking and aging of the rubber layer can occur, the service life of the axle box pull rod rubber joint is greatly influenced, and the. Through patent search, no patent publication report identical to the present invention is found. Similar patent documents in the same technical field are as follows.
1. The invention discloses an invention patent with the application number of CN201810809134 and the name of double-spherical traction rubber joint and a manufacturing method thereof, and discloses a double-spherical traction rubber joint and a manufacturing method thereof. The double-spherical traction rubber joint comprises a mandrel, an outer sleeve and a rubber layer; the mandrel comprises a mandrel spherical section, the outer side surface of the mandrel spherical section is a spherical surface, the rubber layer is bonded between the outer spherical surface of the mandrel and the inner spherical surface of the outer sleeve in a vulcanization mode, the thickness in the middle of the rubber layer is smaller than or equal to the thickness at two ends of the rubber layer, and the sum of the radius of the mandrel spherical section and the thickness in the middle of the rubber layer is smaller than or equal to the radius of the outer sleeve spherical section. During manufacturing, the outer side surface of the middle part of the mandrel and the inner side surface of the middle part of the outer sleeve are processed into spherical surfaces, and the rubber layer is vulcanized and bonded between the double spherical surfaces of the mandrel and the outer sleeve; firstly, processing the rubber molded surfaces at two ends of the rubber layer into rear-close type rubber molded surfaces, and then manufacturing and molding through radial precompression. The rubber profile of the double-spherical traction rubber joint disclosed by the invention is shown in figure 1 and is integrally an inwards concave arc surface, and when the rubber joint is subjected to radial pre-compression, the rubber profile is an approaching inwards concave rubber profile as shown in figure 2. When the rubber joint bears load, the pressed-close type concave rubber profile is easy to be repeatedly folded at the included angle part close to the outer sleeve due to uneven stress to cause cracking, and the fatigue resistance of the pressed-close type concave rubber profile is poor.
2. The invention discloses an invention patent with the application number of CN201710617061 and the name of a rubber profile design method of a traction pull rod node and the traction pull rod node. The design method is characterized in that the outer end profile of the rubber layer is designed into an arc convex surface protruding outwards, the arc convex surface is gradually close to the inner wall of the outer sleeve from outside to inside, the arc convex surface is transited with the inner wall of the outer sleeve through a first transition surface, the arc convex surface is transited with the outer wall of the mandrel through a second transition surface, the first transition surface is designed into an arc surface recessed inwards, and the second transition surface is designed into an arc surface recessed inwards. In the technical scheme disclosed in the patent, as shown in fig. 3: the rubber profile integrally presents an outwardly convex cambered surface, and the rubber profile of the traction pull rod node is still in an outwardly convex shape after the traction pull rod node is radially pre-compressed. When the traction pull rod node is loaded, the rubber profile still can cause repeated folding and cracking of partial areas due to uneven stress, and the fatigue resistance performance of the rubber profile is influenced.
Therefore, in summary: the shaft box pull rod rubber joint and the method for improving the fatigue resistance have important significance.
Disclosure of Invention
The invention aims to provide a novel axle box pull rod rubber joint structure aiming at the problem that a rubber layer in the existing axle box pull rod rubber joint is cracked and aged due to the fact that the rubber layer is deformed and folded under stress.
The invention also aims to provide a method for resisting fatigue performance of the rubber joint of the draw bar of the axle box.
The invention relates to a shaft box pull rod rubber joint which comprises a mandrel, a rubber layer and an outer sleeve, wherein the molded surface of the outer end of the rubber layer is an arc concave surface which is concave inwards, the arc concave surface is connected with the inner wall of the outer sleeve through a first inclined surface, and the first inclined surface is gradually close to the inner wall of the outer sleeve from inside to outside.
Furthermore, the arc concave surface and the first inclined surface are in transition through a transition surface, and the transition surface is an inward concave arc concave surface.
Furthermore, the rubber layer is pre-compressed in the radial direction of the mandrel and the outer sleeve by H, the arc radius R3 of the transition surface is not less than H/4 and not more than R3 and not more than H/2, and the maximum distance between the transition surface and the inner wall of the outer sleeve is H/2-2R.
Furthermore, the radius of the arc concave surface is R1, the width of the arc concave surface along the axial direction of the mandrel is A, and R1 is more than or equal to A and less than or equal to 3A.
Further, inclined plane one pass through inclined plane two with the overcoat inner wall and be connected with the overcoat inner wall, the circular arc concave surface passes through inclined plane three and is connected with the dabber, the contained angle of inclined plane two and overcoat inner wall surface is not less than 45, inclined plane three and dabber internal surface contained angle are not less than 45.
Furthermore, the tail ends of the second inclined plane and the third inclined plane are positioned on the inner side of the inner wall of the outer sleeve and the inner side of the end face of the mandrel.
The invention also relates to a method for improving the fatigue resistance of the axle box pull rod rubber joint, which is characterized by comprising the following steps: the outer end molded surface of the rubber layer of the axle box pull rod rubber joint is designed into an inward concave arc concave surface, the arc concave surface is connected with the inner wall of the outer sleeve through a first inclined surface, the first inclined surface is gradually close to the inner wall of the outer sleeve from inside to outside, and the fatigue resistance of the rubber joint is improved by increasing the radius of the arc concave surface; when the axle box pull rod rubber joint passes through the constant radial precompression H, the radius of the arc concave surface is increased, so that the molded surface of the rubber layer is changed from an inward concave state to a straight state, and when the axle box pull rod rubber joint is subjected to radial load, the folding area of the rubber layer is reduced, so that the fatigue resistance of the axle box pull rod rubber joint is improved.
Furthermore, the size of the opening of the first inclined plane and the circular arc concave surface is adjusted by adjusting the included angle between the first inclined plane and the outer sleeve, when the included angle between the first inclined plane and the outer sleeve is increased, the size of the opening of the first inclined plane and the circular arc concave surface is increased, when the axle box pull rod rubber joint passes through a constant radial pre-compression amount H, the upper half section of the circular arc concave surface is overlapped with a part of the inclined plane, when the included angle between the first inclined plane and the outer sleeve is adjusted until the axle box pull rod rubber joint passes through the constant radial pre-compression amount H, the upper half section of the circular arc concave surface is overlapped with the first inclined plane completely, and the outer end profile fatigue resistance.
Furthermore, the middle of the mandrel is a spherical section, the spherical section is formed by connecting the middle arc section 1 and the two side arc sections 1 in a smooth transition mode, the thickness of the rubber layer is increased by increasing the radiuses of the middle arc section 1 and the two side arc sections 1, and therefore the fatigue resistance performance of the axle box pull rod rubber joint is improved.
Furthermore, the middle of the inner wall of the outer sleeve is a spherical section, the spherical section is formed by connecting the middle arc section 2 and the two side arc sections 2 in a smooth transition mode, the thickness of the rubber layer is increased by increasing the radiuses of the middle arc section 2 and the two side arc sections 2, and therefore the fatigue resistance performance of the axle box pull rod rubber joint is improved.
The invention has the following advantages:
1. the rubber profile of the axle box pull rod rubber joint is designed into a large-opening close-type profile, and after radial precompression, the rubber profile is in a nearly straight state, so that when the axle box pull rod rubber joint is loaded, all parts of the rubber profile are uniformly stressed, a certain area cannot be repeatedly folded and cracked, and the fatigue resistance is greatly improved.
2. The invention also relates to a method for improving the fatigue resistance of the axle box pull rod rubber joint, which is characterized in that the rubber profile is integrally in a straight state after being radially pre-compressed by adjusting the inclined plane angle and the cambered surface radius of the rubber profile, so that the fatigue resistance of the axle box pull rod rubber joint is improved.
3. The invention also relates to a method for improving the fatigue resistance of the axle box pull rod rubber joint, which is characterized in that the spherical surface is more gentle by increasing the radiuses of the spherical surfaces of the outer sleeve and the mandrel, so that the thickness of the rubber layer is increased, and the fatigue resistance of the axle box pull rod rubber joint is further improved.
Drawings
FIG. 1 is a first drawing of a comparison document 1;
FIG. 2 is a second drawing of the comparison document 1;
FIG. 3 is a drawing I of the comparison document 2;
FIG. 4 is a schematic structural view of a rubber joint of a journal box drawbar;
FIG. 5 is an enlarged view of the area I in the schematic view of the axle box drawbar rubber joint structure;
FIG. 6 is a schematic view of the concave surface (2.1) of the regulating arc;
FIG. 7 is a schematic diagram showing the first rubber layer overlapping after the axle box pull rod rubber joints are radially pre-compressed;
FIG. 8 is a second schematic diagram of the rubber layer overlap after the journal rod rubber joints are radially pre-compressed;
FIG. 9 is a third schematic view of the rubber layer overlap after the pedestal jaw rubber joint is radially pre-compressed.
Detailed Description
In order that those skilled in the art will be able to fully practice the present invention, it will be further described with reference to the accompanying drawings and specific examples.
As shown in fig. 4 and 5, the axle box pull rod rubber joint comprises a mandrel 1, a rubber layer 2 and an outer sleeve 3, wherein the outer end profile of the rubber layer 2 is an arc concave surface 2.1 which is concave inwards, the arc concave surface 2.1 is connected with the inner wall of the outer sleeve 3 through an inclined surface I2.2, and the inclined surface I2.2 is gradually close to the inner wall of the outer sleeve 3 from inside to outside. The core shaft 1, the rubber layer 2 and the outer sleeve 3 are bonded together by vulcanization to form a vulcanized layer.
In this embodiment, in order to make the rubber layer can the atress evenly not appear fold, folding phenomenon when axle box pull rod rubber joint is loaded after radial precompression, inwards cave in and press close to formula opening shape with circular arc concave surface 2.1 and inclined plane one 2.2 transitional coupling with rubber layer global design, the first half of circular arc concave surface 2.1 pastes tightly because of radial precompression and inclined plane one 2.2, the lower half is straight form, thereby make rubber outer end profile atress even, fold, folding phenomenon can not appear.
The arc concave surface 2.1 and the inclined surface I2.2 are transited through a transition surface 2.3, and the transition surface 2.3 is an inward concave arc concave surface.
In this embodiment, in order to prevent the arc concave surface 2.1 and the inclined surface one 2.2 from being folded directly during the process of adhering and overlapping when the arc concave surface 2.1 and the inclined surface one 2.2 are pre-compressed in the radial direction, an inwardly concave arc concave surface is adopted as the transition surface 2.3 at the junction of the arc concave surface 2.1 and the inclined surface one 2.2.
The rubber layer 2 is pre-compressed in the radial direction of the mandrel 1 and the outer sleeve 3 by the amount H, the arc radius R3 of the transition surface 2.3 is larger than or equal to H/4 and smaller than or equal to R3 and smaller than or equal to H/2, and the maximum distance between the transition surface 2.3 and the inner wall of the outer sleeve 3 is H/2-2R 3. In order to ensure that the upper half part of the arc concave surface 2.1 can be completely attached to the inclined surface I2.2 after the rubber joint is precompressed by the radial precompression H, a large number of experiments show that when the arc radius R3 of the transition surface 2.3 meets the requirements that H/4 is not less than R3 is not less than H/2, and the maximum distance between the transition surface 2.3 and the inner wall of the outer sleeve 3 is H/2-2R 3, the upper half part of the arc concave surface 2.1 can be ensured to be completely attached to the inclined surface I2.2.
The radius of the arc concave surface 2.1 is R1, the width of the arc concave surface 2.1 along the axial direction of the mandrel is A, and R1 is more than or equal to A and less than or equal to 3A. In order to ensure that the upper half part of the arc concave surface 2.1 can be completely attached to the inclined surface I2.2 after the rubber joint is precompressed by the radial precompression H, a large number of experiments show that when A is not less than R1 is not more than 3A, the upper half part of the arc concave surface 2.1 can be ensured to be completely attached to the inclined surface I2.2, and the upper half part of the arc concave surface 2.1 is attached to the inclined surface I2.2 and cannot exceed the tail end of the inclined surface I2.2.
Inclined plane one 2.2 and 3 inner walls of overcoat pass through inclined plane two 2.4 and 3 inner wall connections of overcoat, circular arc concave surface 2.1 is connected with dabber 1 through inclined plane three 2.5, the contained angle of inclined plane two 2.4 and 3 inner wall surfaces of overcoat is not less than 45, inclined plane three 2.5 and 1 internal surface contained angle of dabber are not less than 45.
In this embodiment, the ends of the first inclined plane 2.2 and the second inclined plane 2.4, the outer sleeve 3 and the mandrel 1 are bonded together after vulcanization, but in order to increase bonding stability, the joint is further sealed with glue, but because the first inclined plane 2.2 and the arc concave surface 2.1 have smaller inclination angles, the joint is not beneficial to sealing with glue, and therefore the second inclined plane 2.4 and the third inclined plane 2.5 with larger inclination angles are arranged at the joint, so that the sealing with glue is facilitated. When the inclination angle is larger than 45 degrees and smaller than 90 degrees, the glue sealing is convenient.
The tail ends of the second inclined plane 2.4 and the third inclined plane 2.5 are positioned on the inner wall of the outer sleeve 3 and the inner side of the end face of the mandrel 1. In this example, the end of the second 2.4 and third 2.5 bevels are 2mm from the end surface of the inner wall of the jacket 3 and the end surface of the mandrel 1.
A method for improving fatigue resistance of a rubber joint of an axle box pull rod comprises the steps that an outer end molded surface of a rubber layer 2 of the rubber joint of the axle box pull rod is designed to be an inward concave arc concave surface 2.1, the arc concave surface 2.1 is connected with the inner wall of an outer sleeve 3 through a first inclined surface 2.2, the first inclined surface 2.2 is gradually close to the inner wall of the outer sleeve 3 from inside to outside, fatigue resistance of the rubber joint is improved by increasing the radius of the arc concave surface 2.1, when the axle box pull rod rubber joint is subjected to constant radial precompression quantity H, the radius of the arc concave surface 2.1 is increased, so that the molded surface of the rubber layer 2 is changed from the inward concave surface to a flat state, and when the axle box pull rod rubber joint is subjected to radial load, the folding area of the rubber layer. As shown in fig. 6, when the radius of the arc concave surface 2.1 is increased to make the radian more gentle, when the shaft box pull rod rubber joint passes through the constant radial precompression amount H, the arc concave surface 2.1 is closer to a flat state as a whole, thereby improving the fatigue resistance.
The size of the opening between the inclined plane I2.2 and the arc concave surface 2.1 is adjusted by adjusting the included angle between the inclined plane I2.2 and the outer sleeve 3, when the included angle between the inclined plane I2.2 and the outer sleeve 3 is increased, the size of the opening between the inclined plane I2.2 and the arc concave surface 2.1 is increased, when the axle box pull rod rubber joint passes through a constant radial precompression amount H, the upper half section of the arc concave surface 2.1 is partially overlapped with the inclined plane I2.2, when the included angle between the inclined plane I2.2 and the outer sleeve 3 is adjusted to reach the axle box pull rod rubber joint which passes through the constant radial precompression amount H, the upper half section of the arc concave surface 2.1 is completely overlapped with the inclined plane I2.2, and the outer end molded surface of the rubber layer 2. As shown in fig. 7 and 8, when the included angle between the first inclined plane 2.2 and the outer sleeve 3 is adjusted, the upper half section of the arc concave surface 2.1 and the first inclined plane 2.2 are overlapped inside the first inclined plane 2.2 or exceed the end of the first inclined plane 2.2 after being overlapped, and the outer profile of the rubber layer has a certain included angle, so that when the rubber joint of the axle box pull rod is loaded, the included angle can be repeatedly folded and cracked, so that the fatigue resistance can be affected, only the included angle between the first inclined plane 2.2 and the outer sleeve 3 is adjusted, after the rubber joint of the axle box pull rod is subjected to the radial precompression H, as shown in fig. 9, the upper half section of the arc concave surface 2.1 and the first inclined plane 2.2 are just overlapped at the end of the first inclined plane 2.2, and the outer profile of the rubber layer.
The middle of the mandrel 1 is a spherical section, the spherical section is formed by connecting a middle arc section 11.1 and two side arc sections 11.2 in a smooth transition mode, the thickness of the rubber layer 2 is increased by increasing the radiuses of the middle arc section 11.1 and the two side arc sections 11.2, and therefore the fatigue resistance of the axle box pull rod rubber joint is improved.
The middle of the inner wall of the outer sleeve 3 is a spherical section, the spherical section is formed by connecting a middle arc section 23.1 and two side arc sections 23.2 in a smooth transition mode, the thickness of the rubber layer 2 is increased by increasing the radiuses of the middle arc section 23.1 and the two side arc sections 23.2, and therefore the fatigue resistance of the axle box pull rod rubber joint is improved. In this embodiment, the cambered surface radius of the spherical surface section of the outer sleeve 3 and the mandrel 1 is further increased, so that the spherical surface section is more gentle, and the thickness of the rubber layer 2 is increased under the condition that the overall dimension of the axle box pull rod rubber joint is not changed, so that the fatigue resistance of the axle box pull rod rubber joint is further improved.
Obviously, the above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (3)
1. A method for improving fatigue resistance of a rubber joint of a journal box pull rod is characterized by comprising the following steps: the outer end molded surface of the rubber layer (2) of the axle box pull rod rubber joint is designed into an arc concave surface (2.1) which is concave inwards, the arc concave surface (2.1) is connected with the inner wall of the outer sleeve (3) through a first inclined surface (2.2), the first inclined surface (2.2) is gradually close to the inner wall of the outer sleeve (3) from inside to outside, the fatigue resistance of the rubber joint is improved by increasing the radius of the arc concave surface (2.1), when the axle box pull rod rubber joint passes through a constant radial precompression quantity H, the radius of the arc concave surface (2.1) is increased, so that the molded surface of the rubber layer (2) is changed from concave inwards to a straight state, and when the axle box pull rod rubber joint is radially loaded, the folding area of the rubber layer (2) is reduced, so that the fatigue resistance of the axle box;
the size of an opening between the first inclined surface (2.2) and the arc concave surface (2.1) is adjusted by adjusting an included angle between the first inclined surface (2.2) and the outer sleeve (3), when the included angle between the first inclined surface (2.2) and the outer sleeve (3) is increased, the size of the opening between the first inclined surface (2.2) and the arc concave surface (2.1) is increased, when the rubber joint of the axle box pull rod passes through a constant radial precompression amount H, the upper half section of the arc concave surface (2.1) is partially overlapped with the first inclined surface (2.2), when the included angle between the first inclined surface (2.2) and the outer sleeve (3) is adjusted until the rubber joint of the axle box pull rod passes through the constant radial precompression amount H, the upper half section of the arc concave surface (2.1) is completely overlapped with the first inclined surface (2.2), and the molded surface fatigue resistance of the rubber layer (2) is the.
2. The method for improving the fatigue resistance of the rubber joint of the axle-box pull rod according to claim 1, wherein the method comprises the following steps: the axle box pull rod rubber joint comprises a mandrel (1), wherein a spherical section is arranged in the middle of the mandrel (1), the spherical section is formed by connecting a middle arc section 1 (1.1) and two side arc sections 1 (1.2) in a smooth transition mode, and the thickness of a rubber layer (2) is increased by increasing the radius of the middle arc section 1 (1.1) and the two side arc sections 1 (1.2), so that the fatigue resistance of the axle box pull rod rubber joint is improved.
3. The method for improving the fatigue resistance of the rubber joint of the axle-box pull rod according to claim 2, wherein: the middle of the inner wall of the outer sleeve (3) is a spherical section, the spherical section is formed by connecting the middle arc section 2 (3.1) and the two side arc sections 2 (3.2) in a smooth transition mode, the thickness of the rubber layer (2) is increased by increasing the radiuses of the middle arc section 2 (3.1) and the two side arc sections 2 (3.2), and therefore the fatigue resistance of the axle box pull rod rubber joint is improved.
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| CN201910675943.7A CN110329300B (en) | 2019-07-25 | 2019-07-25 | Shaft box pull rod rubber joint and method for improving fatigue resistance |
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| CN201910675943.7A CN110329300B (en) | 2019-07-25 | 2019-07-25 | Shaft box pull rod rubber joint and method for improving fatigue resistance |
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| CN110329300B true CN110329300B (en) | 2020-08-14 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110816576B (en) * | 2019-11-11 | 2021-04-16 | 株洲时代瑞唯减振装备有限公司 | Method and device for improving fatigue life of elastic side bearing |
| CN111976447B (en) * | 2020-08-28 | 2022-03-18 | 中车大同电力机车有限公司 | Tractor and bogie and suspension device thereof |
| CN113530964B (en) * | 2021-07-13 | 2022-03-18 | 株洲时代新材料科技股份有限公司 | Integral design method of multilayer rod end spherical hinge |
| CN113503309B (en) * | 2021-07-13 | 2022-03-18 | 株洲时代新材料科技股份有限公司 | Method for reducing deflection torsional rigidity of multilayer rod end spherical hinge and multilayer rod end spherical hinge |
| CN113323958B (en) * | 2021-07-13 | 2022-03-22 | 株洲时代新材料科技股份有限公司 | Design method for rubber profile of compression-resistant rod end ball hinge |
| CN113503310B (en) * | 2021-07-13 | 2022-04-01 | 株洲时代新材料科技股份有限公司 | Method for improving tensile property of rubber layer of rod end spherical hinge |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2630205A1 (en) * | 1976-07-05 | 1978-01-19 | Hurth Masch Zahnrad Carl | TILT PINS FOR JOINTS, IN PARTICULAR CARDAN JOINTS OR DGL. |
| CN202573699U (en) * | 2012-04-20 | 2012-12-05 | 株洲时代新材料科技股份有限公司 | Flexible hinge joint and vehicle rubber suspension bracket with same |
| CN205423652U (en) * | 2016-03-28 | 2016-08-03 | 株洲时代新材料科技股份有限公司 | Location rubber joint |
| CN107364463B (en) * | 2017-07-26 | 2023-05-26 | 株洲时代新材料科技股份有限公司 | Rubber profile design method of traction pull rod node and traction pull rod node |
| CN207539247U (en) * | 2017-12-01 | 2018-06-26 | 海门市宏达铁路机车车辆配件有限公司 | A kind of spherical hinge structure for being convenient for changing mandrel |
| CN108909755B (en) * | 2018-07-23 | 2020-03-10 | 株洲时代新材料科技股份有限公司 | Double-spherical traction rubber joint and manufacturing method thereof |
| CN109318925B (en) * | 2018-10-23 | 2020-03-10 | 株洲时代新材料科技股份有限公司 | Manufacturing method of shaft box positioning node |
| CN109532916B (en) * | 2018-11-01 | 2020-12-15 | 株洲时代瑞唯减振装备有限公司 | Rotating arm node for railway vehicle and design method thereof |
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