CN209776432U - Axle box rubber pad, freight train bogie and railway freight train - Google Patents
Axle box rubber pad, freight train bogie and railway freight train Download PDFInfo
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- CN209776432U CN209776432U CN201920567027.7U CN201920567027U CN209776432U CN 209776432 U CN209776432 U CN 209776432U CN 201920567027 U CN201920567027 U CN 201920567027U CN 209776432 U CN209776432 U CN 209776432U
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Abstract
The utility model discloses a rubber pad for axle box, which is used to be installed between the side frame and the bearing saddle of the bogie, and comprises an upper lining plate, a lower lining plate and a buffer rubber, wherein the top surface of the upper lining plate is provided with an outer cylinder which is convex upwards and is communicated with the bottom surface of the upper lining plate; the top surface of the lower lining plate is provided with an inner cylinder which is convex upwards and can be embedded into the outer cylinder; the buffer rubber comprises a plate-shaped buffer part and a raised buffer part, the raised buffer part is raised from the top surface of the plate-shaped buffer part and communicated with the bottom surface of the plate-shaped buffer part, the side wall of the raised buffer part is provided with at least one pair of transverse rigidity weakening parts, the raised buffer part is sleeved on the inner cylinder and embedded into the outer cylinder along with the inner cylinder, and the plate-shaped buffer part is positioned between the upper lining plate and the lower lining plate. The rubber pad of the axle box meets the requirements of the bogie on transverse rigidity and longitudinal rigidity; meanwhile, the device has the advantages of simple structure, low manufacturing cost, convenient assembly and disassembly and reliable matching with the side frame and the bearing saddle. The utility model also discloses a freight train bogie and a railway freight car.
Description
Technical Field
the utility model relates to a railway freight car bogie production design technical field, in particular to axle box rubber pad, freight car bogie and railway freight car.
Background
the most common bogie for railway freight cars is a two-axle cast steel three-piece bogie, which consists of a bolster 01, two side frames 03, two wheel pairs 02, a spring device, a brake device and the like.
In recent years, in order to improve the dynamic performance of trucks and reduce the impact load between wheel rails and the vibration of vehicles, a new truck bogie design scheme is adopted, and a pedestal rubber pad 04 is additionally arranged between a side frame 03 of the bogie and a bearing saddle 05 at a wheel pair 02, so that a pedestal positioning device is formed, and the wheel pair 02 is elastically positioned on the side frame 03, as shown in fig. 1.
The pedestal rubber pad 04 is generally a member formed by vulcanizing a rubber layer between upper and lower metal plates (referred to as upper and lower lining plates), and functions to achieve elastic positioning between the wheel set and the side frame and provide certain longitudinal, lateral and vertical deflection, thereby reducing impact load between the wheel rails and vibration of the vehicle, improving the dynamic performance of the vehicle, and reducing damage and abrasion of the wheel rails.
when a vehicle falls, the rubber pad of the axle box is compressed vertically, so that a certain vertical deflection is provided, the vertical dynamic performance of the vehicle is improved, in the running process of the vehicle, the wheel pair is also acted by the rail in the horizontal plane, and the elastic action of the rubber pad of the axle box enables the acting force to be buffered to a certain degree, meanwhile, the rubber pad of the axle box has certain rigidity in the transverse direction and the longitudinal direction of the vehicle, and the longitudinal rigidity is larger than the transverse rigidity.
the existing axle box rubber pad mainly has the following types:
1. the flat rubber pad is characterized in that an upper lining plate A and a lower lining plate B of the axle box rubber pad are both flat as shown in FIG. 2, and a layer of rubber C is vulcanized in the middle of the upper lining plate A and the lower lining plate B, however, the longitudinal height and the transverse height of the axle box rubber pad are equal, and the requirement that a bogie has different longitudinal rigidity and transverse rigidity to the axle box rubber pad cannot be met;
2. As shown in figure 3, the splayed rubber pad has the advantages that the upper lining plate A and the lower lining plate B are splayed, rubber C with the same shape is vulcanized in the middle, the rubber pad has the defects that the manufacturing difficulty of the upper lining plate and the lower lining plate is high, the cost is high, and the problem that the rubber pad of the journal box is in poor contact with a side frame and a bearing saddle easily occurs, so that the function of the rubber pad cannot be well played.
Therefore, the existing rubber gasket for the axle box has obvious defects, and the technical problem to be solved by the technical personnel in the field is urgently needed to provide the rubber gasket for the axle box, which can overcome the defects and meet the use requirement.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present invention is to provide a rubber pad for axle box, so as to satisfy the vertical buffering requirement between side bearer and the bearing saddle, and satisfy the requirement that the bogie rigidity is different in the horizontal direction and the vertical direction again, and simultaneously can also keep good contact with side bearer and bearing saddle all the time.
Another object of the utility model is to provide an adopt freight train bogie of above-mentioned axle box rubber pad.
Still another object of the present invention is to provide a railway wagon using the above wagon bogie.
in order to achieve the above object, the utility model provides a following technical scheme:
A rubber pad for axle box is installed between side frame and bearing saddle of bogie and is composed of upper and lower lining plates and buffer rubber,
The top surface of the upper lining plate is provided with an outer cylinder which is upwards raised and is communicated with the bottom surface of the upper lining plate;
The top surface of the lower lining plate is provided with an inner cylinder which is convex upwards and can be embedded into the outer cylinder;
the buffer rubber comprises a plate-shaped buffer part and a protruding buffer part, wherein the protruding buffer part protrudes from the top surface of the plate-shaped buffer part and is communicated with the bottom surface of the plate-shaped buffer part, the side wall of the protruding buffer part is provided with at least one pair of transverse rigidity weakening parts, the protruding buffer part is sleeved on the inner tube and is embedded into the inner tube, and the plate-shaped buffer part is positioned between the upper lining plate and the lower lining plate.
Preferably, the urceolus the inner tube and the cross section of protruding buffering portion all is circular, just lateral rigidity cuts the weak portion and sets up for the symmetry protruding buffering portion lateral wall is last and is located the breach at same diameter both ends, perhaps lateral rigidity cuts the weak portion and sets up for the symmetry protruding buffering portion lateral wall is last and is located the pit at same diameter both ends.
Preferably, the cross sections of the outer cylinder and the inner cylinder are circular, the protruding buffer part is surrounded by first sector rubber and second sector rubber which are arranged in a circle at intervals, and two gaps between the first sector rubber and the second sector rubber form the transverse rigidity weakening part.
Preferably, the first sector rubber and the second sector rubber are distributed in a central symmetry manner about a center of a cross section of the convex buffering part.
Preferably, the central angle of any one of the first sector rubber and the second sector rubber is alpha, and 90 degrees < alpha < 150 degrees.
preferably, the lining plate further comprises a top positioning device arranged on the top surface of the upper lining plate and a bottom positioning device arranged on the bottom surface of the lower lining plate.
Preferably, the top positioning device is one or more top ribs protruding upwards from the top surface of the upper liner plate, the bottom surface of the lower liner plate is provided with one or more bottom ribs extending downwards, and the bottom positioning device is the bottom positioning rib itself or a positioning groove formed in the bottom positioning rib.
Preferably, the top positioning device is one or more top positioning pins protruding upwards from the top surface of the upper liner plate, and the bottom positioning device is one or more bottom positioning pins protruding downwards from the bottom surface of the lower liner plate.
The utility model also discloses a freight train bogie, including wheel pair, side bearer, bearing saddle and the above-mentioned arbitrary one the disclosed pedestal rubber pad, pedestal rubber pad install in the side bearer with between the bearing saddle, just go up the welt be used for with the side bearer contact cooperation, down the welt be used for with the bearing saddle contact cooperation.
Preferably, the lower part of the side frame is provided with a guide frame, and the top surface of the guide frame is provided with a mounting hole and a positioning groove; the top of the bearing saddle is provided with a bearing plate, and a positioning block is arranged on the bearing plate;
The axle box rubber pad is embedded into the guide frame, an outer cylinder of the axle box rubber pad penetrates into the mounting hole, the upper lining plate is tightly pressed with the top surface of the guide frame, and a top flange arranged on the upper lining plate is clamped into the positioning groove; the lower lining plate is tightly pressed with the bearing plate, and the positioning groove arranged on the lower lining plate is matched with the positioning block in a clamping manner.
Preferably, the lower part of the side frame is provided with a guide frame, and the top surface of the guide frame is provided with a mounting hole and a top positioning hole; the top of the bearing saddle is provided with a bearing plate, and a bottom positioning hole is formed in the bearing plate;
The axle box rubber pad is embedded into the guide frame, an outer cylinder of the axle box rubber pad penetrates into the mounting hole, the upper lining plate is tightly pressed with the top surface of the guide frame, and a top positioning pin arranged on the upper lining plate is clamped into the top positioning hole; the lower lining plate is tightly pressed with the bearing plate, and a bottom positioning pin arranged on the lower lining plate is clamped in the bottom positioning hole.
The utility model discloses in the railway freight car who discloses, including the freight car bogie to this freight car bogie is the disclosed freight car bogie in above-mentioned embodiment.
The utility model discloses in the axle box rubber pad disclosed in, the top of going up the welt is protruding upward to have the urceolus, the top surface of welt is protruding upward to have the inner tube down, cushion rubber includes platelike buffering portion and protruding buffering portion, and still be provided with the lateral stiffness on the protruding buffering portion and cut weak portion, when the installation, cushion rubber establishes on the inner tube of welt down through protruding buffering portion cover, then along with the inner tube of welt down in the urceolus is emboliaed together in the bottom of welt from the top, protruding buffering portion is crowded tightly between inner tube and urceolus, meanwhile, the top surface of welt is close to gradually and is crowded tightly platelike buffering portion with the bottom surface of last welt down.
In the rubber pad of the axle box, the plate-shaped buffer part is used for providing vertical deflection for a bogie, ideal vertical deflection can be provided for the bogie by increasing the thickness of the plate-shaped buffer part, the raised buffer part positioned between the inner cylinder and the outer cylinder is used for adjusting the rigidity of the bogie in the transverse direction and the longitudinal direction, and the arrangement of the transverse rigidity weakening part ensures that the longitudinal rigidity of the rubber pad of the axle box is greater than the transverse rigidity of the rubber pad of the axle box, thereby meeting the requirements of the bogie on the transverse rigidity and the longitudinal rigidity; meanwhile, the rubber pad of the axle box has the advantages of simple structure, low manufacturing cost, convenient assembly and disassembly and reliable matching with the side frame and the bearing saddle.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the location of the rubber pads of the axlebox on the freight car bogie;
FIG. 2 is a schematic structural diagram of a rubber pad of a shaft box in the prior art;
FIG. 3 is a schematic structural diagram of another prior art axle box rubber pad;
Fig. 4 is a schematic structural view of a rubber pad of an axle box disclosed in an embodiment of the present invention;
FIG. 5 is a schematic diagram of the exploded structure of FIG. 4;
FIG. 6 is a schematic illustration of a side frame configuration that cooperates with the pedestal rubber pad disclosed in FIG. 4;
FIG. 7 is a schematic view of a bearing adapter configured to mate with the pedestal rubber pad disclosed in FIG. 4;
FIG. 8 is a schematic view of the rubber pad of the pedestal pan disclosed in another embodiment of the present invention;
FIG. 9 is a schematic view of the top and bottom locating pins of FIG. 8 being installed;
FIG. 10 is a schematic illustration of a side frame configuration that cooperates with the pedestal rubber pad disclosed in FIG. 8;
FIG. 11 is a schematic view of a bearing adapter for use with the pedestal rubber pad disclosed in FIG. 8.
The drawings are numbered as follows:
The structure comprises an upper liner plate 1, a lower liner plate 2, buffer rubber 3, a guide frame 4, a bearing plate 5, a top positioning pin 6, a bottom positioning pin 7, a top positioning hole 8, a bottom positioning hole 9, an outer cylinder 11, a top flange 12, an inner cylinder 21, a bottom flange 22, a positioning groove 23, a plate-shaped buffer part 31, a convex buffer part 32, a transverse rigidity weakening part 33, a mounting hole 41, a positioning groove 42 and a positioning block 51.
Detailed Description
One of the cores of the utility model is to provide an axle box rubber pad to can enough satisfy the vertical buffering requirement between side bearer and the bearing saddle, can satisfy the different requirement of bogie in horizontal and vertical rigidity, can also keep good contact with side bearer and bearing saddle all the time simultaneously.
the utility model discloses an another core still lies in providing a freight train bogie that adopts above-mentioned axle box rubber pad.
The utility model discloses a still another core provides a railway freight car that adopts above-mentioned freight car bogie.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Before the scheme introduction of the present invention, the upcoming direction noun is defined first, in the present invention, "vertical" specifically means vertical direction, "vertical" means the direction of train operation, and "horizontal" is in the horizontal plane with vertical perpendicular direction.
the pedestal rubber pad disclosed in the embodiment needs to be installed between a side frame and a bearing saddle of a bogie when in application, the pedestal rubber pad comprises an upper lining plate 1, a lower lining plate 2 and a buffer rubber 3, please refer to fig. 4 to 5, and certainly, also refer to fig. 8 to 9, the top surface of the upper lining plate 1 of the pedestal rubber pad is provided with an outer cylinder 11 protruding towards the top, the top of the outer cylinder 11 can be opened or closed, but the inside of the outer cylinder 11 is communicated with the bottom surface of the upper lining plate 1, so that other components can penetrate into the inside of the outer cylinder 11; the top surface of the lower lining plate 2 is provided with an inner cylinder 21 protruding towards the top surface, the inner cylinder 21 can be embedded into the inner cavity of the outer cylinder 11, and parameters such as the shape and the size of the inner cylinder 21 need to be matched with the outer cylinder 11; the buffer rubber 3 specifically includes a plate-shaped buffer portion 31 and a convex buffer portion 32, please refer to fig. 5, the convex buffer portion 32 protrudes from the top surface of the plate-shaped buffer portion 31, the top of the convex buffer portion 32 is open, the inner cavity of the convex buffer portion 32 is communicated with the bottom surface of the plate-shaped buffer portion 31, one or more pairs of transverse stiffness weakening portions 33 are further disposed on the side wall of the convex buffer portion 32, when the installation is performed, the convex buffer portion 32 is sleeved on the inner cylinder 21 and is embedded into the outer cylinder 11 along with the inner cylinder 21, and at the same time, the plate-shaped buffer portion 31 is squeezed between the upper liner plate 1 and the lower liner plate 2.
Referring to the drawings, it can be seen that in the axle box rubber pad disclosed in the above embodiments, the plate-shaped buffer portion 31 and the protruding buffer portion 32 actually form a cap-shaped buffer rubber 3, the combination of the upper liner plate 1 and the lower liner plate 2 forms a cap-shaped mounting member, and the buffer rubber is just embedded between the upper liner plate 1 and the lower liner plate 2, so as to finally form an integral cap-shaped axle box rubber pad.
In the journal box rubber pad, the plate-shaped buffer part 31 is used for providing vertical deflection for a bogie, ideal vertical deflection can be provided for the bogie by increasing the thickness of the plate-shaped buffer part 31, the bulge buffer part 32 positioned between the inner cylinder 21 and the outer cylinder 11 is used for adjusting the rigidity of the bogie in the transverse direction and the longitudinal direction, in the embodiment, in order to meet the requirement that the transverse rigidity of the bogie is less than the longitudinal rigidity, at least one pair of transverse rigidity weakened parts 33 are arranged on the bulge buffer part 32 (the transverse rigidity weakened parts 33 should be positioned in the transverse direction of the bogie during installation), thereby meeting the requirements of the bogie on the transverse rigidity and the longitudinal rigidity; meanwhile, the axle box rubber pad is only of a simple cap-shaped structure as a whole, so that the axle box rubber pad also has the advantages of simple structure, low manufacturing cost, convenience in disassembly and assembly and reliability in matching with the side frame and the bearing saddle.
it should be noted that the cross-sectional shapes of the outer cylinder 11 and the inner cylinder 21 are not necessarily circular, and may be rectangular or regular polygon, etc., as long as the cross-sectional shapes of the outer cylinder 11 and the inner cylinder 21 are matched with each other, and the cross-sectional shape of the protruding buffer portion 32 should also be matched with the cross-sectional shapes of the outer cylinder 11 and the inner cylinder 21. In one embodiment, the cross sections of the outer cylinder 11, the inner cylinder 21 and the convex buffering portion 32 are circular, and the transverse stiffness weakening portion 33 is two notches symmetrically formed in the side wall of the convex buffering portion 32, and the centers of the two notches are respectively located at two ends of the same diameter on the cross section of the convex buffering portion 32.
it is well known to those skilled in the art that the tensile and compressive stiffness of rubber is much greater than the shear stiffness of rubber, so that when two gaps are arranged in the transverse direction of the truck, the rubber material in the longitudinal direction is significantly greater than that in the transverse direction, and the stiffness in the longitudinal direction is mainly provided by the tensile and compressive forces of rubber, while the stiffness in the transverse direction is provided by the tensile and compressive forces of a small portion of rubber, plus the shear stiffness of rubber, which ensures that the longitudinal stiffness of the pedestal rubber pad is greater than the transverse stiffness, and the longitudinal stiffness of the truck can be greater than the transverse stiffness thereof after being mounted on the truck.
of course, instead of forming the notch, the skilled person can also form the transverse stiffness weakening part 33 by reducing the material, for example, two grooves are symmetrically formed on the side wall of the convex buffering part 32, and the two concave pits are located at two ends of the same diameter on the cross section of the convex buffering part 32. When the rubber pad is installed on the truck bogie, the longitudinal rigidity of the truck bogie is higher than the transverse rigidity of the truck bogie.
The embodiment of the present invention provides an in, transverse rigidity weak part 33 specifically is a pair of, of course, as required, the skilled person in the art can also set up two pairs or more even pairs, as long as guarantee transverse rigidity and longitudinal rigidity all satisfy the operation requirement.
In another technical solution, the cross-sections of the outer cylinder 11 and the inner cylinder 21 are circular, and the protruding buffer portion 32 is surrounded by a first rubber sector and a second rubber sector which are concentric and spaced apart from each other, and referring to fig. 5 in particular, two gaps should be provided between the first rubber sector and the second rubber sector, and these two gaps constitute the transverse stiffness weakening portion 33.
In order to ensure the sizes of the two gaps are consistent, in the present embodiment, the first and second rubber sectors are distributed in a central symmetry manner with respect to the center of the cross section of the convex buffering portion 32, as shown in fig. 5.
Different vehicle types may have different requirements on the difference of longitudinal stiffness and transverse stiffness, so the sizes of the two gaps can be adaptively adjusted according to needs, in the scheme, the first sector rubber and the second sector rubber are distributed in central symmetry, and any one of the first sector rubber and the second sector rubber corresponds to a central angle of alpha, wherein, alpha is more than 90 degrees and less than 150 degrees, when alpha is different angles, the sizes of the two gaps are correspondingly changed, for example, when alpha is 100 degrees, 120 degrees and 140 degrees, the two gaps are gradually reduced, and correspondingly, the difference of the transverse stiffness and the longitudinal stiffness of the journal box rubber pad is also gradually reduced.
In order to ensure the stability of the rubber pad of the pedestal box on the bogie, the top surface of the upper liner plate 1 is also provided with a top positioning device matched with the side frame, and the bottom surface of the lower liner plate 2 is also provided with a bottom positioning device matched with the bearing saddle. More specifically, the present invention discloses two different embodiments, one embodiment refers to fig. 4 to 7, and the other embodiment refers to fig. 8 to 11.
Referring first to fig. 4 to 7, the top positioning device is one or more top ribs 12 (without limitation to the setting position and number, preferably disposed on the edge of the upper liner plate 1) protruding upward from the top surface of the upper liner plate 1, the bottom surface of the lower liner plate 2 is provided with one or more bottom ribs 22 (without limitation to the setting position and number, preferably disposed on the edge of the lower liner plate 2) extending downward, and the bottom positioning device is specifically the bottom rib 22 itself, or the bottom positioning device is a positioning groove 23 opened on the bottom rib 22.
In the figure, the bottom positioning device is a positioning groove 23 arranged on the bottom flange 22, and is matched with the bottom positioning device, the lower part of the side frame is provided with a guide frame 4, and the top surface of the guide frame 4 is provided with a positioning groove 42 for the top flange 12 to be clamped in; the top of bearing the saddle is loading board 5, is provided with the locating piece 51 with positioning groove 23 adaptation on the loading board 5.
referring to fig. 8 to 11, the top positioning device is one or more top positioning pins 6 protruding upward from the top surface of the upper liner plate 1, and the bottom positioning device is one or more bottom positioning pins 7 protruding downward from the bottom surface of the lower liner plate 2. The connection manner of the top positioning pin 6 and the upper liner plate 1 and the connection manner of the bottom positioning pin 7 and the lower liner plate 2 are not limited, and may be welding, or may be screw connection, caulking, or the like.
The lower part of the side frame is provided with a guide frame 4, and the top surface of the guide frame 4 is provided with a top positioning hole 8 into which a top positioning pin 6 is clamped; the top of bearing the saddle is loading board 5, is provided with the bottom locating hole 9 that supplies bottom locating pin 7 card to go into on loading board 5.
compared with the mode of arranging the top rib 12 and the bottom rib 22, the mode of arranging the top positioning pin 6 and the bottom positioning pin 7 can further save materials, and the production cost is reduced on the premise of ensuring the use effect.
In addition, the utility model also discloses a freight train bogie, including wheel pair, side bearer, bear the saddle and the above-mentioned embodiment in the disclosed pedestal rubber pad, pedestal rubber pad is installed between side bearer and bear the saddle, and the last welt 1 of pedestal rubber pad is used for contacting the cooperation with the side bearer, and lower welt 2 is used for contacting the cooperation with bearing the saddle.
The truck bogie adopting the journal box rubber gasket has the corresponding technical advantages of the journal box rubber gasket, and repeated description is not provided herein.
Because the two different positioning schemes of the pedestal rubber pad are introduced in the above embodiment, two different positioning structures are also required for the side frame and the bearing adapter in the bogie.
As a first way, please refer to fig. 4 to 7, the top positioning device is a top rib 12 protruding from the top surface of the upper liner plate 1, the bottom surface of the lower liner plate 2 is provided with a bottom rib 22 extending downward, and the bottom positioning device is specifically a positioning groove 23 formed on the bottom rib 22.
In match with the above, the lower part of the side frame is provided with a guide frame 4, and the top surface of the guide frame 4 is provided with a mounting hole 41 and a positioning groove 42; the top of the bearing saddle is provided with a bearing plate 5, and a positioning block 51 is arranged on the bearing plate 5;
In pedestal rubber pad embedding pedestal 4 to in the urceolus 11 of pedestal rubber pad penetrates mounting hole 41, so that carry out vertical and horizontal ascending location to the pedestal rubber pad, go up the top surface of welt 1 and pedestal 4 and compress tightly, in the constant head tank 42 is gone into to top flange 12 card, welt 2 compresses tightly with loading board 5 down, and positioning groove 23 and location fixture block card are joined in marriage, so that carry out vertical and horizontal ascending location to the pedestal rubber pad.
as a second way, please refer to fig. 8 to 11, the top positioning device is a plurality of top positioning pins 6 protruding upward from the top surface of the upper liner plate 1, and the bottom positioning device is a plurality of bottom positioning pins 7 protruding downward from the bottom surface of the lower liner plate 2.
In match with the above, the lower part of the side frame is provided with a guide frame 4, and the top surface of the guide frame 4 is provided with a mounting hole 41 and a top positioning hole 8; the top that bears the saddle is loading board 5, be provided with bottom locating hole 9 on loading board 5, in axlebox rubber pad embedding pedestal 4, and axlebox rubber pad urceolus 11 penetrates in mounting hole 41, so that carry out vertical and horizontal ascending location to the axlebox rubber pad, go up the top surface of welt 1 and pedestal 4 and compress tightly, in top locating hole 8 is gone into to top locating pin 6 card, lower welt 2 compresses tightly with loading board 5, bottom locating pin 7 card is gone into in bottom locating hole 9, so that carry out vertical and horizontal ascending location to the axlebox rubber pad.
in addition, the utility model also discloses a railway freight car, this railway freight car include the disclosed freight car bogie in the above-mentioned embodiment.
Due to the adoption of the freight car bogie, the railway freight car has the corresponding technical advantages of the freight car bogie, and the detailed description is omitted herein.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. A rubber pad for axle box is installed between side frame and bearing saddle of bogie, and comprises upper liner plate (1), lower liner plate (2) and buffer rubber (3),
The top surface of the upper lining plate (1) is provided with an outer cylinder (11) which protrudes upwards and is communicated with the bottom surface of the upper lining plate (1);
The top surface of the lower lining plate (2) is provided with an inner cylinder (21) which protrudes upwards and can be embedded into the outer cylinder (11);
Cushion rubber (3) include platelike buffering portion (31) and protruding buffering portion (32), protruding buffering portion (32) protruding in the top surface of platelike buffering portion (31) and with the bottom surface of platelike buffering portion (31) link up, the lateral wall of protruding buffering portion (32) is provided with at least a pair of transverse rigidity and cuts weak portion (33), protruding buffering portion (32) cover is located on inner tube (21) and along inner tube (21) embedding in urceolus (11), platelike buffering portion (31) are located go up welt (1) with between lower welt (2).
2. The pedestal rubber pad according to claim 1, wherein the cross-section of the outer cylinder (11), the inner cylinder (21), and the convex buffer (32) is circular, and the transverse stiffness weakening part (33) is a notch symmetrically formed on the sidewall of the convex buffer (32) and located at both ends of the same diameter, or the transverse stiffness weakening part (33) is a concave pit symmetrically formed on the sidewall of the convex buffer (32) and located at both ends of the same diameter.
3. the pedestal rubber pad according to claim 1, wherein the cross-section of the outer cylinder (11) and the cross-section of the inner cylinder (21) are circular, and the convex cushioning portion (32) is defined by a first rubber sector and a second rubber sector which are arranged in a concentric and spaced manner, and two gaps between the first rubber sector and the second rubber sector form the transverse stiffness weakening portion (33).
4. The pedestal rubber pad of claim 3, wherein the first and second rubber sectors are arranged symmetrically about a center of a cross-section of the raised cushion (32).
5. a pedestal rubber pad according to any one of claims 1 to 4, further comprising a top positioning means provided on the top surface of the upper liner (1) and a bottom positioning means provided on the bottom surface of the lower liner (2).
6. A pedestal rubber pad according to claim 5, characterized in that the top positioning means is one or more top ribs (12) protruding upward from the top surface of the upper liner (1), and the bottom surface of the lower liner (2) is provided with one or more bottom ribs (22) extending downward, and the bottom positioning means is the bottom ribs (22) themselves or positioning grooves (23) opened in the bottom ribs (22).
7. a pedestal rubber pad according to claim 5, wherein the top locating means is one or more top locating pins (6) projecting upwardly from the top surface of the upper liner (1) and the bottom locating means is one or more bottom locating pins (7) projecting downwardly from the bottom surface of the lower liner (2).
8. a freight car truck comprising a wheelset, a sideframe, a bearing adapter and a pedestal rubber pad according to any one of claims 1 to 7, wherein the pedestal rubber pad is mounted between the sideframe and the bearing adapter, and the upper liner (1) is adapted to be in contact engagement with the sideframe and the lower liner (2) is adapted to be in contact engagement with the bearing adapter.
9. a freight car bogie as claimed in claim 8, wherein a guide frame (4) is provided at the lower part of the side frame, and a mounting hole (41) and a positioning groove (42) are provided at the top surface of the guide frame (4); the top of the bearing saddle is provided with a bearing plate (5), and a positioning block (51) is arranged on the bearing plate (5);
The axle box rubber gasket is embedded into the guide frame (4), an outer cylinder (11) of the axle box rubber gasket penetrates into the mounting hole (41), the upper lining plate (1) is tightly pressed against the top surface of the guide frame (4), and a top flange (12) arranged on the upper lining plate (1) is clamped into the positioning groove (42); the lower lining plate (2) is tightly pressed with the bearing plate (5), and a positioning groove (23) formed in the lower lining plate (2) is clamped with the positioning block (51).
10. A freight car bogie as claimed in claim 8, wherein a guide frame (4) is provided at the lower part of the side frame, and a mounting hole (41) and a top positioning hole (8) are provided at the top surface of the guide frame (4); the top of the bearing saddle is provided with a bearing plate (5), and the bearing plate (5) is provided with a bottom positioning hole (9);
the axle box rubber gasket is embedded into the guide frame (4), an outer cylinder (11) of the axle box rubber gasket penetrates into the mounting hole (41), the upper lining plate (1) is tightly pressed against the top surface of the guide frame (4), and a top positioning pin (6) arranged on the upper lining plate (1) is clamped into the top positioning hole (8); the lower lining plate (2) is tightly pressed with the bearing plate (5), and a bottom positioning pin (7) arranged on the lower lining plate (2) is clamped into the bottom positioning hole (9).
11. A railway wagon comprising a wagon bogie, wherein the wagon bogie is a wagon bogie as claimed in any one of claims 8-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920567027.7U CN209776432U (en) | 2019-04-24 | 2019-04-24 | Axle box rubber pad, freight train bogie and railway freight train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920567027.7U CN209776432U (en) | 2019-04-24 | 2019-04-24 | Axle box rubber pad, freight train bogie and railway freight train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209776432U true CN209776432U (en) | 2019-12-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920567027.7U Active CN209776432U (en) | 2019-04-24 | 2019-04-24 | Axle box rubber pad, freight train bogie and railway freight train |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001697A (en) * | 2019-04-24 | 2019-07-12 | 中车齐齐哈尔车辆有限公司 | A kind of axle box rubber packing, roller bearing adapter stabilizer bar and railway freight-car |
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2019
- 2019-04-24 CN CN201920567027.7U patent/CN209776432U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001697A (en) * | 2019-04-24 | 2019-07-12 | 中车齐齐哈尔车辆有限公司 | A kind of axle box rubber packing, roller bearing adapter stabilizer bar and railway freight-car |
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