Elastic side bearing body for railway wagon
By introducing dampers and return springs into the elastic side carrier for railway trucks, the problems of rubber elastic parts becoming brittle at low temperatures and having short service life are solved, and the effect of extending service life and reducing replacement frequency is achieved.
Patent Information
- Application Number
- CN202421605097.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-07-09
AI Technical Summary
The rubber elastic parts in the elastic side carrier for existing railway trucks become brittle at low temperatures and tend to age and become brittle after long use, resulting in frequent replacement.
An elastic side carrier for railway trucks is designed. By introducing a damper and return spring into the side carrier, it provides rigidity and reaction force, reducing dependence on rubber parts, thereby extending service life.
The design reduces the aging and brittle problems of rubber parts through the combination of dampers and return springs, extends service life and reduces replacement frequency.
Smart Images
Figure CN222682407U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of railway system accessories, in particular to an elastic side bearing body for railway freight cars. Background Art
[0002] With the development of railway freight car technology, due to the improvement of the material properties of non-metallic materials themselves, non-metallic materials have been widely used in bogies, which plays a vital role in improving the performance and reliability of bogies and reducing wear. The elastic side bearings used in the turning frame adopt a constant contact method, which consists of a side bearing seat, a side bearing body, a wear plate, a roller and a roller shaft; the side bearing body adopts a spring in the middle, which is embedded in rubber to form a vulcanized body with the side plate and the upper top plate. The elastic side bearing mainly attenuates the side swing vibration through the creep of the elastomer. The elastomer is a rubber elastic part. Rubber will become brittle at low temperatures and is prone to aging after a long time of use. From the perspective of service life, an elastic side bearing for railway freight cars is designed to solve the above problems. Utility Model Content
[0003] 1. Technical issues to be resolved
[0004] In view of the deficiencies in the prior art, the utility model provides an elastic side bearing for railway freight cars, which solves the problem that the elastic bodies inside the existing elastic side bearings for railway freight cars are mostly rubber elastic parts, which are prone to aging and becoming brittle after a long period of use.
[0005] (II) Technical solution
[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:
[0007] The utility model provides an elastic side bearing body for railway freight cars, comprising: a lower side bearing, front and rear ends of the left and right sides of the upper surface of the lower side bearing are connected to a limiting frame, the upper surface of the lower side bearing is connected to four dampers in an array shape, a return spring is sleeved on the outer side of the damper, the upper end of the lower side bearing is provided with an upper side bearing with a hollow lower end and openings at both front and rear ends, the lower surface of the upper side bearing is fixedly connected to the upper end of the return spring and the telescopic end of the damper, the front and rear ends of the left and right sides of the upper side bearing are connected to four wing plates, the wing plates are forty-five degrees as a whole, the wing plates are inserted and connected to the inside of the limiting frame, the upper surface of the upper side bearing is connected to a wear-resistant layer, the upper surface of the wear-resistant layer is connected to a docking port on both sides, and the right end of the lower side bearing is connected to a roller bracket.
[0008] Preferably, the lower ends of the front and rear sides of the lower side bearing are connected to limiting plates, the limiting plates are the same length as the left and right sides of the lower end of the upper side bearing, and the length between the upper end of the limiting plate and the lower surface of the upper side bearing is the same as the spacing between the lower surfaces of the front and rear ends of the upper side bearing and the upper surface of the upper side bearing.
[0009] Preferably, rubber buffer pads are connected to the lower surfaces on the left and right sides of the upper side bearing and the upper surface of the limiting plate.
[0010] Preferably, a return spring fixing column is connected between the lower surface of the lower side bearing and the telescopic ends of the four dampers, and the return spring is sleeved on the outside of the return spring fixing column.
[0011] Preferably, the lower ends of the left and right sides of the upper side bearing are at the same height as the lower ends of the four wing panels.
[0012] Preferably, the height of the upper end of the limiting plate is higher than the height of the lower shell of the damper.
[0013] Preferably, the lower side bearing and the upper side bearing are both made of carbon steel, and the connection between the wing plate and the limit frame is made of alloy steel.
[0014] (III) Beneficial effects
[0015] The utility model provides an elastic side bearing for a railway freight car, which has at least the following beneficial effects compared with the prior art:
[0016] The elastic side bearing for railway freight cars mainly provides rigidity through a damper and provides reaction force through a return spring, thereby providing an upward thrust and reducing the aging and brittleness of rubber parts, which requires frequent replacement. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the structure of the utility model;
[0018] Figure 2 It is a cross-sectional view of the upper end of the utility model;
[0019] Figure 3 It is a transverse cross-sectional view of the utility model;
[0020] Figure 4 This is a cross-sectional view of the limiting frame of the utility model.
[0021] In the figure: 1. lower side bearing; 2. limit frame; 3. damper; 4. return spring; 5. upper side bearing; 6. wing plate; 7. wear-resistant layer; 8. docking port; 9. roller bracket; 21. limit plate; 22. return spring fixing column. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] See also Figure 1-4 The utility model provides a technical solution: an elastic side bearing for a railway freight car, comprising: a lower side bearing, wherein the front and rear ends on the left and right sides of the upper surface of the lower side bearing are connected to a limiting frame, the upper surface of the lower side bearing is connected to four dampers in an array shape, a return spring is sleeved on the outer side of the damper, the upper end of the lower side bearing is provided with an upper side bearing with a hollow lower end and openings at both front and rear ends, the lower surface of the upper side bearing is fixedly connected to the upper end of the return spring and the telescopic end on the upper side of the damper, four wing plates are connected to the front and rear ends on the left and right sides of the upper side bearing, the wing plates are forty-five degrees as a whole, the wing plates are inserted and connected to the inside of the limiting frame, the upper surface of the upper side bearing is connected to a wear-resistant layer, the upper surface of the wear-resistant layer is connected to a docking port on the left and right sides, and the right end of the lower side bearing is connected to a roller bracket.
[0024] When in use, the elastic side bearing of the railway freight car is placed inside the side bearing placement groove. When the railway freight car deflects and turns, the cross beam on one side of the railway freight car will be pressed against the docking interface on the upper surface of the wear-resistant layer, the wear-resistant layer will be pressed downward, the upper side bearing will be pressed downward, and the four wing plates will slide downward inside the limit frame. At this time, the damper will slow down the speed and force of the downward deviation, and the reset spring will be in a compressed state, which will push the cross beam upward. At the same time, the reset spring and the damper at the other end will pull the cross beam. When the position of the railway freight car returns to normal, the damper will be slowly pulled back to its initial position.
[0025] As shown in the figure, an embodiment of the utility model provides an implementation method. Based on the above implementation method, the lower ends of the front and rear sides of the lower side bearing are connected to limiting plates, and the limiting plates are the same length as the left and right sides of the lower end of the upper side bearing. The length between the upper end of the limiting plate and the lower surface of the upper side bearing is the same as the spacing length between the lower surfaces of the front and rear ends of the upper side bearing and the upper surface of the upper side bearing.
[0026] Analysis of the above structure shows that when the lower end of the upper side bearing hits the upper surface of the lower side bearing, it will also hit the upper surface of the limit plate, increasing the contact surface area during downward pressure and reducing damage during collision.
[0027] As shown in FIG. 1 , an embodiment of the utility model provides an implementation method. Based on the above implementation method, rubber buffer pads are connected to the lower surfaces on the left and right sides of the upper side bearing and the upper surface of the limit plate.
[0028] Analysis of the above structure shows that when the upper side bearing is squeezed downward, the rubber buffer pad can activate the buffering function when the lower surfaces on the left and right sides of the upper side bearing collide with the lower side bearing and the lower surface of the upper end of the upper side bearing collides with the upper surface of the limit plate.
[0029] As shown in Figure -, an embodiment of the utility model provides an implementation method. Based on the above implementation method, a return spring fixing column is connected between the lower surface of the lower side bearing and the four telescopic ends of the damper, and the return spring is sleeved on the outside of the return spring fixing column.
[0030] From the analysis of the above structure, it can be seen that when the return spring is compressed downward, the return spring fixing column and the housing of the damper can play a guiding role to prevent the return spring from shifting.
[0031] As shown in FIG. 1 , an embodiment of the utility model provides an implementation method. Based on the above implementation method, the lower ends of the left and right sides of the upper side bearing are at the same height as the lower ends of the four wing panels.
[0032] Analysis of the above structure shows that when the upper side bearing slides downward, the four wing plates and the lower ends of the left and right sides of the upper side bearing will contact the upper surface of the lower side bearing at the same time, thereby increasing the contact area and reducing the pressure during squeezing.
[0033] As shown in FIG. 1 , an embodiment of the utility model provides an implementation method. Based on the above implementation method, the height of the upper end of the limit plate is higher than the height of the lower side shell of the damper.
[0034] Analysis of the above structure shows that when the upper side bearing is squeezed downward, it will be squeezed on the upper end of the limit plate and will not be pressed on the outer side of the damper, thereby preventing the damper from being damaged by pressure.
[0035] As shown in FIG. 1 , an embodiment of the utility model provides an implementation method. Based on the above implementation method, the lower side bearing and the upper side bearing are both made of carbon steel, and the connection between the wing plate and the limit frame is made of alloy steel.
[0036] From the analysis of the above structure, it can be seen that the lower side bearing and the upper side bearing are both made of carbon steel, which is harder and less prone to breakage, while the connection between the wing plate and the limit frame is made of alloy steel, which can reduce the friction loss when the upper side bearing is pressed down.
[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An elastic side support for a railway freight car, characterized in that: include: A lower side bearing (1), wherein the front and rear ends of the left and right sides of the upper surface of the lower side bearing (1) are connected to a limiting frame (2), the upper surface of the lower side bearing (1) is connected to four dampers (3) in an array shape, the outer side of the damper (3) is sleeved with a return spring (4), the upper end of the lower side bearing (1) is provided with an upper side bearing (5) with a hollow lower end and open front and rear ends, the lower surface of the upper side bearing (5) is fixedly connected to the upper end of the return spring (4) and the upper telescopic end of the damper (3), the front and rear ends of the left and right sides of the upper side bearing (5) are connected to four wing plates (6), the wing plates (6) are 45 degrees as a whole, and the wing plates (6) are inserted and connected to the inside of the limiting frame (2), the upper surface of the upper side bearing (5) is connected to a wear-resistant layer (7), the upper surface of the wear-resistant layer (7) is connected to a docking port (8) on both sides, and the right end of the lower side bearing (1) is connected to a roller bracket (9).
2. The elastic side support for a railway freight car according to claim 1, characterized in that: The lower ends of the front and rear sides of the lower side bearing (1) are connected to limit plates (21), the limit plates (21) are the same length as the left and right sides of the lower end of the upper side bearing (5), and the length between the upper end of the limit plate (21) and the lower surface of the upper side bearing (5) is the same as the spacing between the lower surfaces of the front and rear ends of the upper side bearing (5) and the upper surface of the upper side bearing (5).
3. The elastic side support for a railway freight car according to claim 1, characterized in that: The lower surfaces on the left and right sides of the upper side bearing (5) and the upper surface of the limiting plate (21) are both connected with rubber buffer pads.
4. The elastic side support for a railway freight car according to claim 1, characterized in that: A return spring fixing column (22) is connected between the lower surface of the lower side bearing (1) and the telescopic ends of the four dampers (3), and the return spring (4) is sleeved on the outside of the return spring fixing column (22).
5. The elastic side support for a railway freight car according to claim 1, characterized in that: The lower ends of the left and right sides of the upper side bearing (5) are at the same height as the lower ends of the four wing plates (6).
6. The elastic side support for a railway freight car according to claim 3, characterized in that: The upper end height of the limiting plate (21) is higher than the lower shell height of the damper (3).
7. The elastic side support for a railway freight car according to claim 1, characterized in that: The lower side bearing (1) and the upper side bearing (5) are both made of carbon steel, and the connection between the wing plate (6) and the limiting frame (2) is made of alloy steel.