A railway express freight car bogie side beam

Abstract

The present invention discloses a side beam of a railway express freight car bogie. The side beam is welded by a template to form a box beam structure, and the template includes an upper cover plate, a web plate, and a lower cover plate; the cross section of the side beam is a U-shaped structure with two wings in which the middle part is lower than the two ends; a suspension pedestal integral with the lower cover plate is arranged on the inner side of the U-shaped structure. The present invention forms the side beam by welding, and its weight is lighter than that of a casting structure; the low suspension pedestal built into the side beam is convenient for the spatial design of the central suspension; the contour of the transverse stopper mounting seat is complementary to the upper cover plate and the web plate, and its ingenious structural design enables the transverse force received by the stopper to be borne by the entire side beam; ball joint mounting seats are symmetrically arranged on the two ribs of the lower cover plate of the side beam, respectively, providing a ball joint mounting position for the swing arm type axle box positioning bogie; shock absorber mounting seats are arranged at both ends of the side beam, and vertical hydraulic shock absorbers can be installed to avoid the bogie from using friction positioning and vibration reduction, thereby reducing the workload of the bogie maintenance and overhaul.

Description

Technical Field

[0001] The invention belongs to the technical field of design and manufacturing of railway freight transportation equipment, in particular to the design and manufacturing technology of express freight car bogies, and particularly relates to a welded side beam of a railway express freight car bogie. Background Art

[0002] Due to the requirements of braking performance and dynamic performance, the bogie of railway fast freight cars generally adopts an integral welded frame, and the main body of the welded frame mainly includes two side beams and a cross beam. The existing side beams have many shortcomings. For example, the secondary suspension pedestal of the existing railway fast freight car bogie is directly set on the upper cover plate of the U-shaped middle section of the side beam, so the height left for the secondary suspension is very limited, making it difficult to ensure the performance of the secondary suspension. For another example, the existing lateral stopper is generally set at the bottom of the bolster, which is not convenient for daily observation and maintenance. Summary of the invention

[0003] The present invention discloses a side beam of a railway express freight car bogie in view of the deficiencies of the prior art. The problem to be solved by the present invention is to provide a side beam of a railway express freight car bogie with light weight and more reasonable structure.

[0004] The present invention is achieved through the following technical solutions:

[0005] The side beam of the bogie of a railway express freight car is characterized in that: the side beam adopts a box beam structure formed by welding of a template, and the template includes an upper cover plate, a web plate, and a lower cover plate; the cross section of the side beam is a U-shaped combined two-wing structure with the middle part lower than the two ends; a suspension pedestal with a structure integrated with the lower cover plate is arranged on the inner side of the U-shaped structure.

[0006] The hanging pedestal is welded to the inner side of the side beam, the pedestal surface is lower than the lowest point of the U-shaped structure of the upper cover plate of the side beam, the bottom surface of the hanging pedestal and the lower cover plate are an integrated structure, and the pedestal side plate is welded and fixed to the upper cover plate, the web plate and the lower cover plate.

[0007] A transverse stop mounting seat is arranged on the U-shaped upper surface of the side beam, a sleeve is arranged at one end of the two wings, and a weighing valve mounting seat is arranged at the other end, and a shock absorber mounting seat is welded to the outer ends of the sleeve and the weighing valve mounting seat, and two groups of ball joint mounting seats are symmetrically arranged on the U-shaped structure on the lower surface of the lower cover plate and the transition section connecting the two wings, and two groups of cross beam connecting holes are symmetrically arranged on the front and rear webs at the transition section connecting the U-shaped structure and the two wings.

[0008] The transverse stopper mounting seat of the present invention is a welded component, and its contour is complementary to the upper cover plate and the web; the transverse stopper mounting seat is composed of a seat plate, a support plate, a mounting plate, a baffle plate and a U-shaped plate. Based on the seat plate, three support plates are equidistantly distributed and vertically welded on the upper surface of the seat plate, the mounting plate is connected and fixed to the three support plates by welding, the U-shaped plate is welded to the lower surface of the seat plate, the center lines of the two arm plates of the U-shaped plate are respectively aligned with the center lines of the two outermost support plates on the seat plate, the contour of the baffle plate is the same as the shape of the inner cavity formed by the U-shaped plate and the seat plate, the baffle plate is fixed by welding, and its position is aligned with the web plate.

[0009] The side beam template welding forms a box beam structure in which multiple inner partitions are welded to connect the upper cover plate, the web plate and the lower cover plate. The side beam of the present invention is formed into a side beam of the box structure by template welding, and the weight is lighter than that of the casting structure; multiple inner partitions are uniformly welded between the two web plates in the side beam of the box structure, which can enhance the rigidity and strength of the side beam bearing structure.

[0010] The suspension pedestal of the present invention is welded to the inner side of the side beam and is much lower than the middle section of the upper cover plate of the side beam; the bottom surface of the suspension pedestal adopts a structure integrated with the lower cover plate, which has higher structural strength, and adopts a pedestal side plate structure welded and fixed with the upper cover plate, the web plate and the lower cover plate, so as to further enhance the structural strength of the side beam.

[0011] The two ribs of the lower cover plate of the side beam of the present invention are symmetrically provided with ball joint mounting seats; shock absorber mounting seats are provided at both ends of the side beam and are respectively welded to the sleeve and the weighing valve mounting seat.

[0012] The beneficial effects of the present invention include: the present invention adopts welding to form the side beam, and its weight is lighter than the casting structure; the low suspension pedestal built into the side beam is convenient for the spatial design of the central suspension; the contour of the lateral stopper mounting seat is complementary to the upper cover plate and the web, and its ingenious structural design enables the lateral force exerted on the stopper to be borne by the entire side beam; ball joint mounting seats are symmetrically arranged on the two ribs of the lower cover plate of the side beam, providing ball joint mounting positions for the swing arm type axle box positioning bogie; shock absorber mounting seats are arranged at both ends of the side beam, on which vertical hydraulic shock absorbers can be installed, avoiding the use of friction positioning and vibration reduction for the bogie, thereby reducing the workload of bogie maintenance and overhaul. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the side beam structure of the present invention.

[0014] Figure 2 It is an exploded schematic diagram of the side beam transverse stop mounting seat and the structural plate of the present invention.

[0015] Figure 3 It is a schematic diagram of the structure of the transverse stop mounting seat of the present invention.

[0016] Markings in the figure: 1-upper cover plate, 2-belly plate, 3-lower cover plate, 4-sleeve, 5-weighing valve mounting seat, 6-inner partition plate, 7-suspension base, 8-ball joint mounting seat, 9-shock absorber mounting seat, 10-lateral stop mounting seat, 10.1-seat plate, 10.2-support plate, 10.3-mounting plate, 10.4-baffle, 10.5-U-shaped plate. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with specific implementation methods. The specific implementation methods are further descriptions of the principles of the present invention and do not limit the present invention in any way. Technologies that are the same or similar to the present invention do not exceed the scope of protection of the present invention.

[0018] Combined with the attached pictures.

[0019] The side beam of the bogie of a railway express freight car is a box beam structure formed by welding of molded plates, and the molded plates include an upper cover plate 1, a web plate 2, and a lower cover plate 3; the cross section of the side beam is a U-shaped combined two-wing structure with the middle portion lower than the two ends; a suspension pedestal 7 which is an integral structure with the lower cover plate 3 is arranged on the inner side of the U-shaped structure.

[0020] The suspension pedestal 7 is welded to the inner side of the side beam, the surface of the suspension pedestal 7 is lower than the lowest point of the U-shaped structure of the upper cover plate 1 of the side beam, the bottom surface of the suspension pedestal 7 and the lower cover plate 3 are an integral structure, and the side plate of the suspension pedestal 7 is welded and fixed to the upper cover plate 1, the web plate 2 and the lower cover plate 3.

[0021] A transverse stop mounting seat 10 is arranged on the U-shaped upper surface of the side beam, a sleeve 4 is arranged at one end of the two wings, and a weighing valve mounting seat 5 is arranged at the other end, and a shock absorber mounting seat 9 is welded to the outer ends of the sleeve 4 and the weighing valve mounting seat 5. Two groups of ball joint mounting seats 8 are symmetrically arranged at the transition section connecting the U-shaped structure on the lower surface of the lower cover plate 3 and the two wings, and two groups of cross beam connecting holes are symmetrically arranged at the transition section connecting the U-shaped structure and the two wings on the front and rear webs 2.

[0022] The transverse stopper mounting seat 10 is composed of a seat plate 10.1, a support plate 10.2, a mounting plate 10.3, a baffle plate 10.4 and a U-shaped plate 10.5. Based on the seat plate 10.1, three support plates 10.2 are equidistantly distributed and vertically welded to the upper surface of the seat plate 10.1, the mounting plate 10.3 is connected and fixed to the three support plates 10.2 by welding, the U-shaped plate 10.5 is welded to the lower surface of the seat plate 10.1, the center lines of the two arm plates of the U-shaped plate 10.5 are respectively aligned with the center lines of the two outermost support plates on the seat plate 10.1, the outer contour of the baffle plate 10.4 is the same as the shape of the inner cavity formed by the U-shaped plate 10.5 and the seat plate 10.1, and the baffle plate 10.4 is fixed by welding, and its position is aligned with the web 2.

[0023] The box beam structure is formed by welding the side beam profiles, and multiple inner partitions 6 are welded inside the box beam structure, which are connected to the upper cover plate 1, the web plate 2, and the lower cover plate 3. The side beams of the present invention are formed into the side beams of the box structure by the profile welding method, and the weight is lighter than the casting structure; multiple inner partitions 6 are evenly welded between the two web plates 2 in the side beam of the box structure, which can enhance the rigidity and strength of the side beam bearing structure.

[0024] The suspension pedestal 7 is welded to the inner side of the side beam and is much lower than the middle section of the upper cover plate 1 of the side beam; the bottom surface of the suspension pedestal 7 adopts a structure integrated with the lower cover plate 3, which has higher structural strength, and adopts a pedestal side plate structure welded and fixed with the upper cover plate 1, the web plate 2 and the lower cover plate 3, which further enhances the structural strength of the side beam.

[0025] As shown in the figure, two ribs of the side beam lower cover plate 3 are symmetrically provided with ball joint mounting seats 8; shock absorber mounting seats 9 are provided at both ends of the side beam and are welded to the sleeve 5 and the weighing valve mounting seat 5 respectively.

[0026] like Figure 1 As shown, the present invention includes an upper cover plate 1, a web plate 2, a lower cover plate 3, a sleeve 4, a weighing valve mounting seat 5, an inner partition plate 6, a suspension pedestal 7, a ball joint mounting seat 8, a shock absorber mounting seat 9 and a transverse stop mounting seat 10. The upper cover plate 1, the web plate 2 and the lower cover plate 3 are welded to form the box beam main structure of the side beam. A plurality of inner partition plates 6 are evenly welded between the two web plates 2 to enhance the rigidity and strength of the side beam bearing structure. Sleeves 4 and weighing valve mounting seats 5 are respectively welded at both ends of the side beam to provide installation positions for the bogie primary suspension device and the empty and loaded vehicle weighing valve. The suspension pedestal 7 is welded with the inner web plate 2 and the lower cover plate 3 as the structural basis. Two ball joint mounting seats 9 are symmetrically arranged on the two ribs of the lower cover plate 3 to provide a ball joint mounting position for the swing arm type axle box positioning bogie. The transverse stop mounting seat 10 is welded in the depression in the middle of the side beam.

[0027] like Figure 2 , Figure 3 As shown, the profile of the transverse stopper mounting seat 10 is complementary to the upper cover plate 1 and the web plate 2. The seat plate 10.1 is located at the symmetrical center of the left and right upper cover plates 1, and is connected to the left and right upper cover plates by groove welding to form an integral upper cover plate 1, that is, the seat plate 10.1 is the middle component of the upper cover plate 1; the middle part of the web plate 2 is provided with a corresponding groove according to the profile of the U-shaped plate 10.5, and the baffle 10.4 is fixed by welding, and its position is aligned with the web plate 2. When the side beam is produced, the manufacturing sequence is to first weld the transverse stopper mounting seat 10, and then weld the transverse stopper mounting seat 10 to the side beam structure to form the side beam as a whole. The side beam adopting this complementary structure, especially the structure in which the center lines of the two arm plates of the U-shaped plate 10.5 are respectively aligned with the center lines of the two outermost support plates 10.2 on the seat plate 10.1, has the advantage that the transverse force received by the transverse stopper can be transmitted to the entire side beam, and the transverse force is borne and absorbed by the entire side beam structure.

Claims

1. A side beam of a railway express freight car bogie, characterized in that: The side beam adopts the box beam structure formed by welding of templates, and the template includes the upper cover plate, the web plate and the lower cover plate; the cross section of the side beam is a U-shaped structure with two wings in the middle part lower than the two ends; the inner side of the U-shaped structure is provided with a suspension pedestal with an integrated structure with the lower cover plate; The hanging cap is welded to the inner side of the side beam, the cap surface is lower than the lowest point of the U-shaped structure of the upper cover plate of the side beam, the bottom surface of the hanging cap is an integrated structure with the lower cover plate, and the cap side plate is welded and fixed to the upper cover plate, the web plate and the lower cover plate; A transverse stopper mounting seat is arranged on the U-shaped upper surface of the side beam, a sleeve is arranged at one end of the two wings, and a weighing valve mounting seat is arranged at the other end, and a shock absorber mounting seat is welded to the outer ends of the sleeve and the weighing valve mounting seat, two groups of ball joint mounting seats are symmetrically arranged at the U-shaped structure on the lower surface of the lower cover plate and the transition section connecting the two wings, and two groups of cross beam connecting holes are symmetrically arranged at the front and rear webs located at the transition section connecting the U-shaped structure and the two wings; The transverse stop mounting seat is composed of a seat plate, a support plate, a mounting plate, a baffle plate and a U-shaped plate; based on the seat plate, three support plates are equidistantly distributed and vertically welded and fixed on the upper surface of the seat plate, the mounting plate is vertically arranged and connected and fixed with the vertical edges of the three support plates by welding, the U-shaped plate is welded to the lower surface of the seat plate, the center lines of the two arms of the U-shaped plate are respectively aligned with the center lines of the two outermost support plates on the seat plate and are located on the same vertical plane, the outer contour of the baffle plate is the same as the shape of the inner cavity formed by the U-shaped plate and the seat plate, and the baffle plate is fixed by welding.

2. The railway express freight car bogie side beam according to claim 1, characterized in that: The box beam structure is formed by welding the side beam profiles, and a plurality of inner partitions connecting the upper cover plate, the web plate and the lower cover plate are welded inside the box beam structure.

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