A device for detecting the width of a pair of cross beam brackets of a railway wagon

Abstract

The utility model discloses a kind of railway wagon cross beam bracket set pair stop width detection devices, comprising: sliding guide plate, for plane rectangular plate, located in set pair stop width detection device bottom, with the thickness t2 less than or equal to gap H3;Detection block, for T-shaped cube, fixed on sliding guide plate upper surface, the large end of T-shaped cube has with the same width of sliding guide plate long side, the L-shaped vertical surface of small end two sides and the surface of sliding guide plate form detection block L type working surface, the width m1 of small end is same with the design distance between two positioning stops;Positioning plate, for long rectangular plate, fixed on detection block upper surface, length m2 is greater than the width of the large end of detection block, less than the distance between the height two wings of U-shaped groove of the bracket where it is located.The utility model detection device when set pair cross beam bracket, can strictly guarantee the stop width distance and parallelism between the working vertical surface of two positioning stops in U-shaped groove of bracket, guarantee the perpendicularity between the working vertical surface of two positioning stops and the bottom plane of bracket.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing equipment design, manufacturing and application technology, and in particular to the field of railway vehicle manufacturing equipment design, manufacturing and application technology. Specifically, it relates to a railway freight car crossbeam support assembly stop width detection device. Background Technology

[0002] Currently, in railway freight cars, the bogie mainly consists of side frames, crossbeam assemblies, bolsters, and basic braking devices, and is one of the most important components of the vehicle's running gear. Among these, the crossbeam assembly, such as... Figure 9 As shown, this is one of the important components of a railway freight car bogie. The crossbeam assembly includes the crossbeam components, the crossbeam support components, and independent adjusting pads; the crossbeam components are as follows... Figure 9 As shown, it is assembled and welded from a crossbeam, a crossbeam contact plate, and a crossbeam pad; the crossbeam support is composed of... Figure 11 As shown, it is assembled and welded from a support, a support base plate, and a positioning bracket.

[0003] The main functions of mounting and supporting the crossbeam assembly via the crossbeam bracket are:

[0004] Support and positioning: The crossbeam assembly is installed on the upper inner side of the bogie side frame, parallel to the bolster; the two ends of the crossbeam assembly are supported in the U-shaped groove formed by the crossbeam brackets, and are positioned by wear-resistant pads, adjusting pads and bolts; the crossbeam can move left and right on the side frame to adapt to different loads and vibration environments.

[0005] Buffering and shock absorption: The automatic control valve probe for empty and loaded trains senses the distance between the contact plates in the middle of the crossbeams to detect changes in vehicle load and dynamically adjusts the brake cylinder pressure; it also buffers and mitigates the impact of track irregularities on the vehicle, and works in conjunction with the bogie's vibration damping system to further reduce vibration and impact, ensuring balanced and stable braking force under different loads and improving the smoothness of train operation.

[0006] like Figure 10 As shown, the crossbeam support assembly is welded to the side frame; the two ends of the crossbeam assembly are supported in the U-shaped groove of the support assembly, and a total gap of 3mm is left between the two positioning blocks and the working planes of the two ends to ensure that the crossbeam assembly can move left and right on the side frame to adapt to different loads and vibration environments; at the same time, it ensures that when the crossbeam assembly moves left and right on the side frame, the train empty and loaded car automatic control valve probe located above the touch plate in the middle of the crossbeam assembly can still effectively sense the vehicle load change from the central area of ​​the touch plate surface, thereby ensuring the balanced and stable braking force under different loads.

[0007] The existing crossbeam support system has the following main problems.

[0008] 1. The issue of the width tolerance c±0.5 between the working planes of the two positioning stops within the U-shaped groove of the support, which is either too wide or too narrow. Figure 11 , Figure 12 , Figure 13 As shown.

[0009] The width distance c ± 0.5 is too narrow < c - 0.5: After the pads are welded at both ends of the crossbeam, the width distance c between the working planes of the two positioning blocks in the U-shaped groove of the support is too narrow. The two positioning blocks in the U-shaped groove cannot be placed at both ends of the crossbeam. Although the working planes of the two positioning blocks in the U-shaped groove of the support can be placed, the gap is too small. When the train runs on uneven or curved tracks, the center area of ​​the touch plate in the middle area of ​​the crossbeam may not be consistent with the direction of the train's curve. There is a risk that the plate may deviate from the effective detection and sensing area of ​​the automatic control valve probe for empty or loaded trains.

[0010] The width limit distance c ± 0.5 is too wide > c + 0.5: After the pads are welded at both ends of the cross beam, the width limit distance c between the working planes of the two positioning blocks in the U-shaped groove formed by the support is too wide. This causes the left and right movement gap between the two positioning blocks in the U-shaped groove to be too large. This may cause the center area of ​​the touch plate in the middle of the cross beam to deviate from the effective detection and sensing area of ​​the automatic control valve probe for empty and loaded trains.

[0011] II. The parallelism between the two positioning blocks' square working planes on the inner U-shaped groove of the support assembly. For example... Figure 11 , Figure 12 , Figure 13 As shown.

[0012] The perpendicularity between the working plane of the two positioning blocks and the inner bottom plane of the U-shaped groove of the support exceeds the tolerance. The direct result of the excessive parallelism and perpendicularity is that after the two ends of the crossbeam assembly are supported on the crossbeam support assembly and positioned by adjusting the wear-resistant pads and bolts, the crossbeam assembly cannot move smoothly left and right on the side frame, cannot adapt to different load and vibration environments, and cannot guarantee the effective detection and sensing area of ​​the automatic control valve probe of the empty and loaded train.

[0013] Therefore, a special assembly and width detection device is needed to ensure the width limit distance between the working planes of the two positioning blocks within the U-shaped groove of the crossbeam support assembly, the parallelism between the working planes of the two positioning blocks, and the perpendicularity between the working planes of the two positioning blocks and the inner side and bottom plane of the U-shaped groove of the support assembly when assembling the support, base plate, and positioning blocks. Summary of the Invention

[0014] This utility model discloses a detection device for the width of a railway freight car crossbeam support assembly, addressing the shortcomings of existing technologies. The purpose of this utility model is to provide a detection device applied during the installation of railway freight car crossbeams and supports.

[0015] This utility model is achieved through the following technical solution:

[0016] A device for detecting the width limit of a railway freight car crossbeam support assembly, wherein the crossbeam support includes a support, positioning blocks, and a base plate, used to mount the two ends of the railway freight car crossbeam onto the side frame of the bogie; wherein the support is a load-bearing base with a U-shaped groove structure, two positioning blocks are welded and fixed to the two wings of the U-shaped groove of the support, and the base plate is fixedly disposed on the bottom surface of the support and connected and fixed to the side frame support; characterized in that: the assembly width limit detection device is used for auxiliary processing and detection of the crossbeam support assembly; including:

[0017] A sliding guide plate, which is a flat rectangular plate, is located at the bottom of the assembly stop width detection device; it has a thickness t2 that is less than or equal to the gap H3 between the lower side plane of the positioning stop and the inner bottom plane of the support.

[0018] A detection block, a T-shaped cube, is fixed to the upper surface of the sliding guide plate by plug welding. The large end of the T-shaped cube has the same width as the long side of the sliding guide plate, and the L-shaped vertical surfaces formed on both sides of the small end form an L-shaped working surface of the detection block with the surface of the sliding guide plate. The width m1 of the small end is the same as the design distance between the two positioning stops of the cross beam support. The height of the T-shaped cube is greater than the transverse diameter of the head of the positioning stop.

[0019] A positioning plate, which is a long rectangular plate, is symmetrically fixed to the upper plane of the detection block by plug welding; the length m2 of the long rectangular plate is greater than the width of the large end of the detection block and less than the distance between the two wings of the height of the U-shaped groove of the support.

[0020] Furthermore, a ring-shaped handle is connected to the outer end of the positioning plate.

[0021] Furthermore, the sliding guide plate, detection block, and positioning plate are all provided with multiple weight-reduction holes that match each other and are connected vertically.

[0022] This utility model of a railway freight car crossbeam support assembly and width detection device can achieve precise assembly of the support with the base plate and positioning blocks.

[0023] The guide detection block of this utility model adopts a fully machined mode. The width m1 of its stop width guide block is designed to be the same as the distance c between the working planes of the two positioning stops square heads in the U-shaped groove of the support. The parallelism of the L-shaped working surfaces on both sides of the assembly and the stop width guide detection block, as well as the perpendicularity between them and the bottom plane of the U-shaped groove of the support, are designed and machined with an accuracy of more than 0.1mm.

[0024] In the assembly and installation of the stop width, this utility model device can achieve error-proof positioning of the positioning block. The L-shaped working surfaces on both sides of the assembly and stop width guide detection block can ensure the parallelism and perpendicularity of the working plane of the square head of the positioning block, while also ensuring the uniqueness of the direction of the unequal side working plane of the square head of the positioning block within the L-shaped working surfaces on both sides of the stop width guide detection block.

[0025] This utility model device can detect the stop width distance between the two positioning blocks on the inner side of the support after the support assembly is welded, detect the parallelism of the working plane of the square head of the two positioning blocks, and detect the perpendicularity of the working plane of the square head of the two positioning blocks.

[0026] This utility model assembly and width detection device can strictly guarantee the width limit distance between the working planes of the two positioning blocks within the U-shaped groove of the support, the parallelism between the working planes of the two positioning blocks, and the perpendicularity between the working planes of the two positioning blocks and the bottom plane inside the U-shaped groove of the support during assembly. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the detection device of this utility model;

[0028] Figure 2 This is a top view schematic diagram of the detection device of this utility model;

[0029] Figure 3 This is a top view schematic diagram of the detection block structure of the detection device of this utility model;

[0030] Figure 4 This is a side view of the detection block structure of the detection device of this utility model;

[0031] Figure 5 This is a top view schematic diagram of the guide plate and handle of the detection device of this utility model;

[0032] Figure 6 This is a side view of the guide plate and handle of the detection device of this utility model;

[0033] Figure 7 This is a top view schematic diagram of the sliding guide plate structure of the detection device of this utility model;

[0034] Figure 8 This is a side view of the guide plate structure of the detection device of this utility model;

[0035] Figure 9 This is a schematic diagram of the crossbeam assembly installation structure;

[0036] Figure 10 This is a schematic diagram of the crossbeam assembly and its crossbeam support, as well as the installation end face of the adjustment pad;

[0037] Figure 11 This is a schematic diagram of the end section structure of the cross-beam support;

[0038] Figure 12 This is a top-view schematic diagram of the crossbeam support structure.

[0039] Figure 13 This is a schematic diagram of the side structure formed by the crossbeam support.

[0040] In the diagram, 1 is the support, 2 is the positioning stop, 3 is the base plate, 13 is the crossbeam assembly, 14 is the contact plate, 16 is the crossbeam support assembly, 17 is the maximum distance between the probe of the automatic control valve for empty / loaded cars and the center area of ​​the contact plate in the middle of the crossbeam assembly when the train is in an empty car state, and 18 is the automatic control valve for empty / loaded cars; c is the width of the crossbeam assembly, H is the height of the support wing surface, H1 is the distance from the edge of the hole of the support plug weld hole along the height direction of the support wing surface, H3 is the gap between the lower side plane of the positioning stop and the inner bottom plane of the support, n1 is the height of the positioning stop, and n2 is the width of the positioning stop;

[0041] 19 is the sliding guide plate, 20 is the detection block, 21 is the positioning plate and handle, 23 is the L-shaped working surface of the detection block, 24 is the weight reduction hole, 29 is the plug welding hole, 30 is the arc of the positioning plate; m1 is the width of the detection block, m2 is the width of the positioning plate, t2 is the thickness of the guide plate, and n4, n5, and n6 are the three reference working surfaces of the detection block. Detailed Implementation

[0042] The present invention will be further described below with reference to specific embodiments. These specific embodiments are further explanations of the principle of the present invention and are not intended to limit the present invention in any way. Any technology that is the same as or similar to the present invention does not exceed the protection scope of the present invention.

[0043] As shown in the figure, the crossbeam support assembly width detection device in this embodiment consists of a sliding guide plate 19, an assembly and width guidance detection block 20, a width positioning plate, and a handle 21.

[0044] The sliding guide plate 19 of the detection device is loaded using laser programming cutting mode.

[0045] The sliding guide plate 19 is provided with sliding guide plate positioning weld plug holes 29. The two elliptical weight reduction holes 24 on the lower plane of the stop width guide detection block 20 are aligned with the two elliptical holes of the sliding guide plate 19 as reference holes, and then welded and fixed through the 13 positioning weld plug holes 29.

[0046] The relationship between the thickness t2 of the sliding guide plate 19 and the gap H3 between the lower side plane of the inner positioning stop 2 of the support 1 and the inner bottom plane of the support 1 is: t2 = H3 - 0.5mm; to facilitate the width detection, the device can smoothly pass through and be positioned in the gap between the lower side plane of the inner positioning stop 2 of the support 1 and the inner bottom plane of the support 1.

[0047] The detection device group uses machining to manufacture the stop width guide detection block 20.

[0048] The width m1 of the stop width guide detection block 20 is set to be equal to the distance c±0.5 between the two positioning blocks 2 on the inner side of the support 1 as required by the process document of the support assembly 16, that is, m1=c±0.5;

[0049] The assembly of the width guide detection block 20 is provided with an L-shaped working surface 23, including three reference working surfaces n4, n5, and n6. Among them, n4 is the horizontal vertical reference surface of the detection block, n5 is the longitudinal vertical reference surface of the detection block, and n6 is the horizontal reference surface formed by the L-shaped groove of the detection block and the surface of the sliding guide plate 19. When the positioning block 2 is assembled from the inside of the support 1 using the detection device, the working surface of the positioning block 2 coincides with the L-shaped reference surface.

[0050] When assembling the positioning block 2, after the positioning block 2 is placed inside the U-shaped groove of the support 1, the square head of the positioning block 2 is completely fitted within the working reference surfaces n5 and n6 of the L-shaped working surface 23 of the assembly width-stopping guide block 20. At this time, the round head of the positioning block 2 can rotate 0 degrees within the weld hole on the wing surface of the support 1, thus preventing errors in the unequal square head of the positioning block 2. Figure 13 As shown.

[0051] The width-stopping positioning plate and handle 21 of the assembly width-stopping detection device are assembled and fed into the material using laser programming cutting mode.

[0052] The width of the positioning plate is set to m2 for the stop width positioning plate and handle 21.

[0053] The stop width positioning plate and handle 21 are provided with positioning welding plug holes 29, which are positioned and welded to the upper plane of the assembly stop width detection block 20. During positioning welding, the weight reduction hole 24 on the assembly stop width detection block 20 is used as the reference hole for alignment.

[0054] During welding and fixing, the two elliptical weight-reducing holes 24 on the lower plane of the assembly width-stopping detection block 20 and the two elliptical holes on the sliding guide plate 19 are aligned and plugged in for positioning. On the upper surface of the assembly width-stopping detection block 20, it is then aligned with the elliptical holes of the width-stopping positioning plate and handle 21 as reference holes and then positioned and welded. After positioning welding, the positioning guide width-stopping part of the width-stopping positioning plate and handle 21 located inside the support 1 is locked between the left and right inclined surfaces inside the support 1, thereby ensuring that the assembly width-stopping detection block 20 and the sliding guide plate 19 are both located at the center of the U-shaped groove bottom plane inside the support 1, thus achieving precise assembly of the support 1 and the base plate 3, as well as error-proof assembly of the positioning stop 2.

[0055] like Figure 9 , Figure 10 , Figure 11 As shown, the crossbeam support assembly 16 includes: a crossbeam support 1, a base plate 3, and a positioning bracket 3. The manufacturing process includes: welding the base plate 3 to the outer bottom plane of the support 1, and welding the positioning bracket 3 to the support 1. In the figure, C is the width of the crossbeam assembly, H1 is the distance from the edge of the weld hole along the height direction of the support flange, H is the height of the support flange, H3 is the gap between the lower plane of the positioning bracket and the inner bottom plane of the support, n1 is the height of the positioning bracket, and n2 is the width of the positioning bracket.

Claims

1. A device for detecting the width of a railway freight car crossbeam support assembly, wherein the crossbeam support includes a support, a positioning stop, and a base plate, used to mount the two ends of the railway freight car crossbeam onto the side frame of the bogie; wherein, The support is a load-bearing base with a U-shaped groove structure. Two positioning stops are welded and fixed to the two wings of the U-shaped groove of the support. The base plate is fixedly set on the bottom surface of the support and connected and fixed to the side frame support. Its characteristic is that: an assembly width detection device is used for auxiliary processing and detection of the cross-beam support assembly; including: A sliding guide plate, which is a flat rectangular plate, is located at the bottom of the assembly stop width detection device; it has a thickness (t2) less than or equal to the gap (H3) between the lower side plane of the positioning stop and the inner bottom plane of the support. A detection block, a T-shaped cube, is fixed to the upper surface of the sliding guide plate by plug welding. The large end of the T-shaped cube has the same width as the long side of the sliding guide plate, and the L-shaped vertical surfaces formed on both sides of the small end form an L-shaped working surface of the detection block with the surface of the sliding guide plate. The width (m1) of the small end is the same as the design distance between the two positioning stops of the cross beam support. The height of the T-shaped cube is greater than the transverse diameter of the head of the positioning stop. A positioning plate, which is a long rectangular plate, is symmetrically fixed to the upper plane of the detection block by plug welding; the length (m2) of the long rectangular plate is greater than the width of the large end of the detection block and less than the distance between the two wings of the height of the U-shaped groove of the support.

2. The railway freight car crossbeam support assembly width detection device according to claim 1, characterized in that: A ring-shaped handle is connected to the outer end of the positioning plate.

3. The railway freight car crossbeam support assembly width detection device according to claim 2, characterized in that: The sliding guide plate, detection block, and positioning plate are all equipped with multiple weight-reduction holes that match each other and are connected vertically.

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