A device for testing a railway freight car frame

Abstract

The present invention provides a device for testing a railway freight car frame, and relates to the technical field of railway vehicles. The device for testing a railway freight car frame includes a ladder-shaped box seat and a first support member, the ladder-shaped box seat includes a bottom plate and a top plate parallel to each other, the length of the top plate is greater than the length of the bottom plate, and the ladder-shaped box seat and the first support member can be combined into a first assembly or a second assembly; in the first assembly, the first support member is connected to the side of the top plate away from the bottom plate, and the top plate and the first support member are both used to connect to the frame, or the first support member is used to connect to the jack, and the top plate is used to connect to the frame; in the second assembly, the first support member is arranged on the side of the top plate facing the bottom plate, the first support member is used to connect to the jack, and the bottom plate is used to connect to the frame. In this way, when conducting different tests, according to different test purposes, by using the first assembly and the second assembly in different situations, the test requirements under various working conditions can be met.

Description

Technical Field

[0001] The present invention relates to the technical field of railway vehicles, and in particular to a device for testing a railway freight car frame. Background Art

[0002] Railway freight cars need to undergo torsion tests in accordance with the requirements of railway vehicle strength test and appraisal specifications. The torsion test of general railway freight cars is mostly carried out by using a car lifting machine to lift the car body for torsion test; or, the bogie spring is taken out and padded with steel plates, and then the car body is lifted for torsion test.

[0003] At present, long and large freight cars are special railway vehicles, which are special vehicles for transporting super-long and super-heavy heavy equipment. The frame strength test of long and large freight cars is often carried out in vertical load test, and the test conditions are single. In addition, some railway freight cars cannot use general vehicle cranes for vehicle torsion test due to their long body (more than 15m), resulting in the frame strength test being unable to take into account the test requirements of multiple working conditions and poor test results. Summary of the invention

[0004] The problem solved by the present invention is how to take into account various working condition test requirements.

[0005] To solve the above problems, the present invention provides a device for testing a railway freight car frame, comprising a ladder-shaped box seat and a first support member, the ladder-shaped box seat comprising a bottom plate and a top plate parallel to each other, the length of the top plate being greater than the length of the bottom plate, and the ladder-shaped box seat and the first support member can be combined into a first assembly or a second assembly; in the first assembly, the first support member is connected to a side of the top plate away from the bottom plate, and both the top plate and the first support member are used to be connected to a frame, or the first support member is used to be connected to a jack, and the top plate is used to be connected to the frame; in the second assembly, the first support member is arranged on a side of the top plate facing the bottom plate, the first support member is used to be connected to the jack, and the bottom plate is used to be connected to the frame.

[0006] Optionally, the railway freight car frame testing device further comprises a second support member, wherein in the first assembly, the second support member is located on a side of the top plate away from the bottom plate, and one end of the second support member is connected to the top plate, and the other end is used to abut against the ground.

[0007] Optionally, the trapezoidal box seat further includes two trapezoidal support plates parallel to each other, and the two trapezoidal support plates are both arranged between the top plate and the bottom plate.

[0008] Optionally, the railway freight car frame testing device further comprises a core plate seat, on which a through hole is provided; in the first assembly, the core plate seat is connected to a side of the top plate facing away from the bottom plate, the through hole is communicated with a connecting hole of the top plate and is used for plugging with the frame; in the second assembly, the core plate seat is connected to a side of the bottom plate facing away from the top plate, the through hole is communicated with the connecting hole of the bottom plate and is used for plugging with the frame.

[0009] Optionally, the core plate seat includes a first plate and a second plate parallel to each other, the first plate is located on a side of the second plate away from the ladder-shaped box seat, the first plate and the second plate are arranged in close proximity, and the projection of the first plate on the second plate falls into the second plate, and the first plate and the second plate are welded.

[0010] Optionally, the railway freight car frame testing device also includes a first support plate, which is arranged between the top plate and the bottom plate and parallel to the top plate, and the first support plate is respectively connected to the two trapezoidal support plates; in the second assembly, the first support member is connected to the side of the first support plate facing away from the top plate.

[0011] Optionally, the railway freight car frame testing device further comprises a web, wherein the web is arranged to penetrate the two trapezoidal support plates in a direction perpendicular to the trapezoidal support plates, and the web is respectively connected to the top plate and the bottom plate.

[0012] Optionally, the railway freight car frame testing device further includes a second support plate, wherein the second support plate is located between the top plate and the first support plate and is connected to the top plate and the first support plate respectively.

[0013] Optionally, the railway freight car frame testing device further comprises a hook, and the hook is arranged on the ladder-shaped support plate.

[0014] Optionally, the first support member is a sheet metal member having a raised portion; in the first assembly, the raised portion is raised in a direction away from the top plate; in the second assembly, the raised portion is raised in a direction toward the bottom plate.

[0015] Compared with the prior art, the device for testing the railway freight car frame of the present invention has a trapezoidal box seat including a bottom plate and a top plate that are parallel to each other, and the length of the top plate is greater than that of the bottom plate. The use of the first combination and the second combination can be determined according to the relative positions of the bottom plate and the top plate. For example, in the first combination, the first support is connected to the side of the top plate facing away from the bottom plate, and both the top plate and the first support in the first combination are connected to the frame, so that the frame can be separated from the ground under the support of the first combination to complete the vertical loading test and the car jacking test through the jack and the stress gauge. Moreover, the first support in the first combination can be connected to the jack, so that the jack forms four-point support under the large chassis of the frame. By raising and lowering the jack, two support points on any one diagonal can be raised or lowered, thereby realizing the torsion test of the large chassis. In addition, by arranging the first support in the second combination on the side of the top plate facing the bottom plate, connecting the first support to the jack, and connecting the bottom plate to the frame, the jack can form four-point support under the small chassis. By raising and lowering the jack, two support points on any one diagonal can be raised or lowered to realize the torsion test of the small chassis. In this way, when conducting different tests, according to different test purposes, by using the first combination and the second combination under different conditions, the test requirements under various working conditions can be met. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Structural diagrams of two placement forms of the trapezoidal box seat in the embodiment of the present invention;

[0017] Figure 2 Structural diagrams of the first support and the second support in the embodiment of the present invention;

[0018] Figure 3 Structural diagram of the center plate seat in the embodiment of the present invention;

[0019] Figure 4 Structural diagram of the device for testing the railway freight car frame in the embodiment of the present invention when simulating the loading of goods on the railway frame;

[0020] Figure 5 Test schematic diagram of simulating the loading of goods in the embodiment of the present invention Figure 1 ;

[0021] Figure 6 Test schematic diagram of simulating the loading of goods in the embodiment of the present invention Figure 2 ;

[0022] Figure 7 Test schematic diagram of simulating the loading of goods in the embodiment of the present invention Figure 3 ;

[0023] Figure 8Schematic diagram of the device for testing railway freight car frames in the embodiment of the present invention when simulating the unloading of goods from the railway frame

[0024] Figure 9 Test schematic diagram for simulating the unloading of goods in the embodiment of the present invention Figure 1 ;

[0025] Figure 10 Test schematic diagram for simulating the unloading of goods in the embodiment of the present invention Figure 2 ;

[0026] Figure 11 Test schematic diagram for simulating the unloading of goods in the embodiment of the present invention Figure 3 ;

[0027] Figure 12 Schematic diagram of the torsional simulation test condition of the large underframe of the frame in the embodiment of the present invention Figure 1 ;

[0028] Figure 13 Schematic diagram of the torsional simulation test condition of the large underframe of the frame in the embodiment of the present invention Figure 2 ;

[0029] Figure 14 Schematic diagram of the torsional simulation test condition of the large underframe of the frame in the embodiment of the present invention Figure 3 ;

[0030] Figure 15 Schematic diagram of the torsional simulation test condition of the small underframe of the railway freight car frame in the embodiment of the present invention Figure 3 ;

[0031] Figure 16 Schematic diagram of the simulated torsional test condition of the small underframe in the embodiment of the present invention Figure 1 ;

[0032] Figure 17 Schematic diagram of the simulated torsional test condition of the small underframe in the embodiment of the present invention Figure 2 ;

[0033] Figure 18 Schematic diagram of the simulated torsional test condition of the small underframe in the embodiment of the present invention Figure 3 。

[0034] Explanation of reference numerals:

[0035] 1 - Trapezoidal box seat; 11 - Bottom plate; 12 - Top plate; 13 - Trapezoidal support plate; 2 - First support member; 3 - Second support member; 4 - Center plate seat; 41 - Through hole; 42 - First plate; 43 - Second plate; 5 - First support plate; 6 - Web; 7 - Second support plate; 8 - Hook; 100 - Frame; 10 - Large chassis; 20 - Jack; 30 - Ground; 40 - Test sample block; 50 - Small chassis; 60 - Side bearing; 70 - Center plate. Detailed implementation mode

[0036] To make the above - mentioned objects, features and advantages of the present invention more obvious and understandable, the following will describe the specific embodiments of the present invention in detail with reference to the accompanying drawings.

[0037] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above - mentioned terms in the present invention can be understood according to specific situations.

[0038] In the description of this specification, the descriptions with reference to terms such as "embodiment", "one embodiment", "some implementation modes", "exemplarily" and "one implementation mode" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or implementation mode are included in at least one embodiment or implementation mode of the present invention. In this specification, the schematic expressions of the above - mentioned terms do not necessarily refer to the same embodiment or implementation mode. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or implementation modes.

[0039] The terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features.

[0040] In the accompanying drawings, the Z axis represents the vertical direction, that is, the up and down position, and the positive direction of the Z axis (that is, the direction of the arrow of the Z axis) represents the top, and the negative direction of the Z axis (that is, the direction opposite to the positive direction of the Z axis) represents the bottom; the X axis in the accompanying drawings represents the horizontal direction and is designated as the left and right positions, and the positive direction of the X axis (that is, the direction of the arrow of the X axis) represents the left side, and the negative direction of the X axis (that is, the direction opposite to the positive direction of the X axis) represents the right side; the Y axis in the accompanying drawings represents the front and back positions, and the positive direction of the Y axis (that is, the direction of the arrow of the Y axis) represents the front side, and the negative direction of the Y axis (that is, the direction opposite to the positive direction of the Y axis) represents the back side; it should be noted that the aforementioned Z axis, Y axis and X axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0041] Combination Figure 1 , Figure 2 and Figures 4 to 18 As shown, an embodiment of the present invention provides a railway freight car frame test device, including a ladder-shaped box seat 1 and a first support member 2, the ladder-shaped box seat 1 includes a bottom plate 11 and a top plate 12 parallel to each other, the length of the top plate 12 is greater than the length of the bottom plate 11, the ladder-shaped box seat 1 and the first support member 2 can be combined into a first assembly or a second assembly; in the first assembly, the first support member 2 is connected to the side of the top plate 12 away from the bottom plate, and the top plate 12 and the first support member 2 are both used to connect with the frame 100, or the first support member 2 is used to connect with the jack 20, and the top plate 12 is used to connect with the frame 100; in the second assembly, the first support member 2 is arranged on the side of the top plate 12 facing the bottom plate 11, the first support member 2 is used to connect with the jack 20, and the bottom plate 11 is used to connect with the frame 100.

[0042] It should be noted that the tests on the frame 100 of railway freight cars include vertical loading tests, car jacking tests, and torsion tests. Among them, the vertical loading test simulates the actual static condition of cargo loading. The frame 100 is supported off the ground, and stress gauges are attached to the frame 100. When no cargo is placed on the frame 100, the stress value of the stress gauge is cleared. After the cargo is placed, the frame 100 deforms at this time, and the stress gauge can measure the strain value at the attachment position. Then, the stress value is obtained by converting the strain value of the stress gauge, achieving the effect of measuring the stress of the underframe during vertical loading; the car jacking test simulates the actual cargo loading and unloading condition. Stress gauges are attached to the frame 100, and the cargo is loaded. The stress value of the stress gauge is cleared. Then, a jack 20 is placed under the lower part of the large underframe 10 or the lower part of the small underframe 50, and the frame 100 is jacked up by the jack 20. Generally, it is supported by the device for testing the frame of railway freight cars. At this time, the frame 100 deforms, and the stress gauge can measure the strain value at the attachment position. Then, the stress value is obtained by converting the strain value of the stress gauge, achieving the effect of measuring the stress of the frame 100 during car jacking; the torsion test simulates the stress generated by the deformation of the frame 100.

[0043] It can be understood that the frame 100 includes a large underframe 10 and two small underframes 50. The two small underframes 50 are respectively arranged at both ends of the large underframe 10. The lower end of the small underframe 50 is provided with a center plate 70 and two side bearings 60 located on both sides of the center plate 70.

[0044] Specifically, the trapezoidal box seat 1 includes a bottom plate 11 and a top plate 12 that are parallel to each other. Among them, the length of the top plate 12 is greater than the length of the bottom plate 11. A first combination can be formed by two first support members 2 and a trapezoidal box seat 1. As Figure 1 shown at A in the figure, the top plate 12 is located above the bottom plate 11. The first support member 2 is connected to the top plate 12 by bolts. When used to support the small underframe 50, the top plate 12 can be used to abut against the center plate 70, and the two first support members 2 are respectively connected to the two side bearings 60. A second combination can be formed by two first support members 2 and a trapezoidal box seat 1. As Figure 1 shown at B in the figure, the top plate 12 is located below the bottom plate 11. The two first support members 2 are located on the side of the top plate 12 facing the bottom plate 11. Each first support member 2 abuts against the cylinder block of a jack 20. When used to support the small underframe 50, the bottom plate 11 abuts against the center plate 70.

[0045] When performing the vertical loading test, as Figures 4 to 7 shown in the figure, two first combinations can be combined to support the small underframe. Specifically, the two first combinations are symmetrically arranged in the vertical direction, that is, the bottom plate 11 in one first combination is connected to the bottom plate 11 in the other first combination. Specifically, as Figure 4As shown in the figure; during the test, the test sample block 40 is equivalent to the goods. After the first combination body and the second combination body are connected and the vehicle frame 100 is supported above the ground 30 through the side bearings 60 and the center seats 70 on the small underframe 50, stress gauges with a stress value of zero can be placed on the large underframe 10. Then, the test sample block 40 is placed on the large underframe 10. The test sample block 40 applies a gravity load to the large underframe 10. Under the action of this gravity load, the large underframe 10 deforms, and the stress gauge converts this deformation into a stress value, so as to achieve the test of the stress effect of the vehicle frame 100 during the vertical loading test.

[0046] During the car jacking test, during the car jacking test process, a jack 20 can be set under the large underframe 10 or the small underframe 50, and the working condition of unloading the goods can be simulated by controlling the jacking up or falling back of the jack 20 on the vehicle frame 100. Taking the setting of the jack 20 under the two small underframes 50 for the car jacking test as an example, as Figures 8 to 11 shown, by respectively placing two first combination bodies under the two small underframes 50, the two first support members 2 and a top plate 12 in the first combination body are respectively connected to the center plate 70 and the side bearing 60 of the corresponding small underframe 50, so as to support the vehicle frame 100 above the ground 30 through the support of the two first combination bodies on the corresponding small underframes 50. Two jacks 20 are respectively arranged under the two small underframes 50, and the vehicle frame 100 is jacked up by the two jacks 20 under the small underframe 50, so as to achieve the test of the stress effect of the vehicle frame 100 during the car jacking test. In some embodiments, a jack 20 can also be set under the large underframe 10 for the car jacking test. At this time, the combined structure of the two first combination bodies in Figure 4 can be used to support the small underframe, so that after the vehicle frame 100 is supported above the ground 30, stress gauges with a stress value of zero are placed on the large underframe 10. Then, after the test sample block 40 is placed on the large underframe 10, the stress gauge has a stress value. Then, the stress value of the stress gauge is cleared again, and then the large underframe 10 is jacked up by the two jacks 20 under the large underframe 10, so as to achieve the test of the stress effect of the vehicle frame 100 during the car jacking test, wherein the small underframe 50 is supported by the two first combination bodies shown in Figure 4 so that the height of the small underframe 50 is the same as that of the large underframe 10.

[0047] During the torsion test, the large underframe 10 and the small underframe 50 need to be torsion tested respectively. When the large underframe 10 is torsion tested, as Figures 12 to 14As shown, two first assemblies are arranged below the large base frame 10, and the two first assemblies are respectively located at the two ends of the large base frame 10. The two first support members 2 in each first assembly are respectively connected to the cylinder of a jack 20, and the top rod of the jack 20 supports the large base frame 10 from the bottom of the large base frame 10. The two first assemblies have four first support members 2. The four jacks 20 respectively connected to the four first support members 2 can form a four-point support below the large base frame 10, and when the two jacks 20 on any diagonal line are lifted at the same time, the large base frame 10 can be torsionally twisted. When the small base frame 50 is subjected to a torsion test, as shown in FIG. Figures 15 to 18 As shown, two second assemblies are provided below the small base frame 50, and the two second assemblies are respectively located at the two ends of the small base frame 50, and the two first support members 2 in each second assembly are respectively connected to the cylinder body of a jack 20, and the jack rod of the jack 20 supports the small base frame 50 from below the small base frame 50 to form a four-point support below the small base frame 50, and when the two jacks 20 on any diagonal line are lifted up at the same time, the torsion of the small base frame 50 is realized; wherein, during the torsion test, the stress value can also be measured by the stress sheet.

[0048] Therefore, in this embodiment, the ladder-shaped box seat 1 includes a bottom plate 11 and a top plate 12 which are parallel to each other, and the length of the top plate 12 is greater than the length of the bottom plate 11, and the use of the first assembly and the second assembly can be determined according to the relative position of the bottom plate 11 and the top plate 12; for example, the first support member 2 in the first assembly is connected to the side of the top plate 12 away from the bottom plate, and the top plate 12 and the first support member 2 in the first assembly are both connected to the frame 100, so that the frame 100 can be separated from the ground 30 under the support of the first assembly, so as to complete the vertical loading test and the jacking test through the jack 20 and the stress sheet, and the first support member 2 in the first assembly can be connected to the jack 20, so that the jack 20 can be placed on the large base frame 10 of the frame 100. Four-point support is formed below, and the two supporting points of any diagonal line can be raised or lowered by raising and lowering the jack 20, thereby realizing the torsion test of the large chassis 10; in addition, the first supporting member 2 in the second assembly is arranged on the side of the top plate 12 facing the bottom plate 11, the first supporting member 2 is connected to the jack 20, and the bottom plate 11 is connected to the frame 100, so that the jack 20 can form four-point support below the small chassis 50, and the two supporting points of any diagonal line can be raised or lowered by raising and lowering the jack, thereby realizing the torsion test of the small chassis 50. In this way, when conducting different tests, according to different test purposes, by using the first assembly and the second assembly in different situations, the test requirements under various working conditions can be met.

[0049] Optionally, combined Figures 8 to 11As shown, the device for testing a railway freight car frame further includes a second support member 3. In the first assembly, the second support member 3 is located on the side of the top plate 12 facing away from the bottom plate 11, and one end of the second support member 3 is connected to the top plate 12, and the other end is for abutting against the ground 30.

[0050] Specifically, the structure of the second support member 3 can be the same as that of the first support member 2, or it can be made by connecting two first support members 2 to each other. When the top plate 12 is located above the bottom plate 11, the second support member 3 is located below the top plate 12, and the upper end of the second support member 3 is connected to the top plate 12, and the lower end of the second support member 3 abuts against the ground 30.

[0051] In this way, in the first assembly, the second support member 3 is located on the side of the top plate 12 facing away from the bottom plate 11, and one end of the second support member 3 is connected to the top plate 12, and the other end is for abutting against the ground 30, so that the second support member 3 can support both ends of the top plate 12, thereby improving the stability of the top plate 12.

[0052] Optionally, as shown in Figure 1 the trapezoidal box seat 1 further includes two mutually parallel trapezoidal support plates 13, and both of the two trapezoidal support plates 13 are arranged between the top plate 12 and the bottom plate 11.

[0053] Specifically, the two trapezoidal support plates 13 are mutually parallel, both of the two trapezoidal support plates 13 are located between the top plate 12 and the bottom plate 11, and both ends of the two trapezoidal support plates 13 are welded to the bottom plate 11 and the top plate 12 respectively.

[0054] In this way, by arranging the two mutually parallel trapezoidal support plates 13 between the top plate 12 and the bottom plate 11, the two trapezoidal support plates 13 can support the top plate 12 or the bottom plate 11 under different working condition tests, thereby improving the stability of the top plate 12 or the bottom plate 11.

[0055] Optionally, as shown in Figure 3 and Figure 4 the device for testing a railway freight car frame further includes a center plate seat 4, and a through hole 41 is provided on the center plate seat 4; in the first assembly, the center plate seat 4 is connected to the side of the top plate 12 facing away from the bottom plate 11, and the through hole 41 is communicated with the connection hole of the top plate 12 and is for inserting the frame 100; in the second assembly, the center plate seat 4 is connected to the side of the bottom plate 11 facing away from the top plate 12, and the through hole 41 is communicated with the connection of the bottom plate 11 and is for inserting the frame 100.

[0056] Specifically, in the first assembly, the center plate seat 4 is connected to the side of the top plate 12 facing away from the bottom plate 11 by bolts, the through hole 41 is communicated with the connection of the top plate 12 and is inserted with the frame 100; in the second assembly, the center plate seat 4 is connected to the side of the bottom plate 11 facing away from the top plate 12, and the through hole 41 is communicated with the connection hole of the bottom plate 11 and is inserted with the frame 100.

[0057] Thus, in the first assembly, the bolster seat 4 is connected to the side of the top plate 12 facing away from the bottom plate 11, the through hole 41 communicates with the connection hole of the top plate 12 and is inserted into the vehicle frame 100; alternatively, in the second assembly, the bolster seat 4 is connected to the side of the bottom plate 11 facing away from the top plate 12, the through hole 41 communicates with the connection of the bottom plate 11 and is inserted into the vehicle frame 100. In this way, after the vehicle frame 100 is inserted into the through hole 41, the through hole 41 provides a constraint to the vehicle frame 100 in its axial direction, thereby improving the stability of the vehicle frame 10 on the bottom plate 11 or the top plate 12.

[0058] Optionally, in combination with Figure 3 as shown, the bolster seat 4 includes a first plate 42 and a second plate 43 that are parallel to each other. The first plate 42 is located on the side of the second plate 43 away from the trapezoidal box seat 1. The first plate 42 is arranged in contact with the second plate 43, and the projection of the first plate 42 on the second plate 43 all falls within the second plate 43. The first plate 42 and the second plate 43 are welded.

[0059] Specifically, the shape of the first plate 42 is similar to that of the second plate 43. Through holes 41 are provided at the centers of both the first plate 42 and the second plate 43. The first plate 42 is located above the second plate 43. The lower end of the first plate 42 is arranged in contact with the upper end of the second plate 43, and the projection of the first plate 42 on the second plate 43 all falls within the second plate 43. By welding the second plate 43 along the contour of the second plate 43 to the first plate 42, it is convenient for the processing of the bolster seat 4.

[0060] Optionally, in combination with Figure 1 as shown, the device for testing a railway freight car vehicle frame further includes a first support plate 5. The first support plate 5 is arranged between the top plate 12 and the bottom plate 11 and is parallel to the top plate 12. The first support plate 5 is respectively connected to the two trapezoidal support plates 13; in the second assembly, the first support member 2 is connected to the side of the first support plate 5 facing away from the top plate 12.

[0061] Specifically, the first support plate 5 is located between the top plate 12 and the bottom plate 11 and is parallel to the top plate 12 and the bottom plate 11 respectively. The two ends of the first support plate 5 are respectively connected to the two trapezoidal support plates 13 by welding. The first support plate 5 is connected to the first support member 2 by bolts or other fasteners.

[0062] In this way, the first support plate 5 is disposed between the top plate 12 and the bottom plate 11 and is parallel to the top plate 12, and the first support plate 5 is respectively connected to the two trapezoidal support plates 13; alternatively, in the second combination, the first support member 2 is connected to the side of the first support plate 5 facing away from the top plate 12, so that the first support plate 5 can provide an installation space at the upper ends of the two trapezoidal support plates 13. In this way, when the first support member 2 is installed, the interference of the installation of the first support member 2 on the two trapezoidal support plates 13 is avoided, and the first support member 2 is supported, thereby improving the stability of the first support member 2.

[0063] Optionally, in combination with Figure 1 As shown, the device for testing the frame of a railway freight car further includes a web 6. The web 6 is disposed through the two trapezoidal support plates 13 in a direction perpendicular to the trapezoidal support plates 13, and the web 6 is respectively connected to the top plate 12 and the bottom plate 11.

[0064] Specifically, the web 6 is located between the top plate 12 and the bottom plate 11. The web 6 is disposed through the two trapezoidal support plates 13 in a direction perpendicular to the trapezoidal support plates 13, and the upper and lower ends of the web 6 are respectively abutted against the top plate 12 and the bottom plate 11.

[0065] In this way, by disposing the web 6 through the two trapezoidal support plates 13 in a direction perpendicular to the trapezoidal support plates 13 and respectively connecting the web 6 to the top plate 12 and the bottom plate 11, the web 6 can be connected to the two trapezoidal support plates 13, the top plate 12 and the bottom plate 11 at the same time. Thus, the web 6, the two trapezoidal support plates 13, the top plate 12 and the bottom plate 11 form a frame structure, thereby improving the structural stability of the trapezoidal box seat 1.

[0066] Optionally, in combination with Figure 1 、 Figure 4 、 Figure 7 and Figure 12 As shown, the device for testing the frame of a railway freight car further includes a second support plate 7. The second support plate 7 is located between the top plate 12 and the first support plate 5 and is respectively connected to the top plate 12 and the first support plate 5.

[0067] Specifically, the second support plate 7 is located between the top plate 12 and the first support plate 5, and the two ends of the second support plate 7 are respectively abutted against the top plate 12 and the first support plate 5.

[0068] In this way, by the second support plate 7 being located between the top plate 12 and the first support plate 5 and respectively connected to the top plate 12 and the first support plate 5, the second support plate 7 can support the first support plate 5 below the first support plate 5, so as to avoid the middle part of the first support plate 5 from bending under the downward pressure of the first support member 5, thereby improving the structural stability of the first support plate 5.

[0069] Optionally, in combination with Figure 1As shown, the device for testing the frame of a railway freight car further includes a lifting hook 8, and the lifting hooks 8 are both arranged on two trapezoidal support plates 13.

[0070] Specifically, the lifting hooks 8 are installed on two trapezoidal support plates 13 by welding. In this way, by arranging the lifting hooks 8 on two trapezoidal support plates 13, it is convenient to hoist and turn over the trapezoidal box seat 1.

[0071] Optionally, in combination with Figure 2 and Figure 4 As shown, the first support member 2 is a sheet metal part and has a convex portion; in the first combination, the convex portion protrudes in a direction away from the top plate 12; in the second combination, the convex portion protrudes in a direction towards the bottom plate 11.

[0072] Specifically, the convex portion of the sheet metal part is formed by a pressing process. In the first combination, the convex portion protrudes in a direction away from the top plate 12, and in the second combination, the convex portion protrudes in a direction towards the bottom plate 11. It can also be understood that the protruding direction of the convex portion is consistent with the positive direction of the Z-axis. The first support member 2 is connected to the cylinder block of the jack 20 through the convex portion.

[0073] In this way, by providing a convex portion on the first support member 2 of the sheet metal part, and in the first combination, the convex portion protrudes in a direction away from the top plate 12; or, in the second combination, the convex portion protrudes in a direction towards the bottom plate 11, the first support member 2 can support the connection of the cylinder block of the jack 20 through the convex portion. The setting of the convex portion improves the structural strength of the first support member 2, thereby realizing the simplification of the structure of the first support member 2 while improving the load-bearing capacity of the first support member 2.

[0074] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Without departing from the spirit and scope of the present disclosure, those skilled in the art can make various changes and modifications, and these changes and modifications will all fall within the protection scope of the present invention.

Claims

1. A device for testing a railway freight car frame, characterized in that, It includes a trapezoidal box seat (1) and a first support member (2). The trapezoidal box seat (1) includes a bottom plate (11) and a top plate (12) that are parallel to each other. The length of the top plate (12) is greater than the length of the bottom plate (11). The trapezoidal box seat (1) and the first support member (2) can be combined into a first combination or a second combination; In the first combination, the first support member (2) is connected to the side of the top plate (12) facing away from the bottom plate. Both the top plate (12) and the first support member (2) are used to be connected to the vehicle frame (100), or the first support member (2) is used to be connected to the jack (20), and the top plate (12) is used to be connected to the vehicle frame (100); In the second combination, the first support member (2) is arranged on the side of the top plate (12) facing the bottom plate (11). The first support member (2) is used to be connected to the jack (20), and the bottom plate (11) is used to be connected to the vehicle frame (100); It further includes a center plate seat (4), and a through hole (41) is provided on the center plate seat (4); In the first combination, the center plate seat (4) is connected to the side of the top plate (12) facing away from the bottom plate (11). The through hole (41) communicates with the connection hole of the top plate (12) and is used for plugging into the vehicle frame (100); In the second combination, the center plate seat (4) is connected to the side of the bottom plate (11) facing away from the top plate (12). The through hole (41) communicates with the connection hole of the bottom plate (11) and is used for plugging into the vehicle frame (100); The first support member (2) is a sheet metal part with a convex portion; in the first combination, the convex portion protrudes in a direction away from the top plate (12); In the second combination, the convex portion protrudes in a direction towards the bottom plate (11).

2. The device for testing the railway freight car frame according to claim 1, wherein, It further includes a second support member (3). In the first combination, the second support member (3) is located on the side of the top plate (12) facing away from the bottom plate (11), and one end of the second support member (3) is connected to the top plate (12), and the other end is used to abut against the ground (30).

3. The device for testing the frame of a railway freight car according to claim 2, wherein The trapezoidal box seat (1) further includes two trapezoidal support plates (13) that are parallel to each other. Both of the two trapezoidal support plates (13) are arranged between the top plate (12) and the bottom plate (11).

4. The device for testing the railway freight car frame according to claim 3, wherein The center plate seat (4) includes a first plate (42) and a second plate (43) that are parallel to each other. The first plate (42) is located on the side of the second plate (43) away from the trapezoidal box seat (1). The first plate (42) is attached to the second plate (43), and the projection of the first plate (42) on the second plate (43) all falls within the second plate (43). The first plate (42) and the second plate (43) are welded.

5. The device for testing the frame of a railway freight car according to claim 3, characterized in that, It also comprises a first support plate (5), the first support plate (5) being arranged between the top plate (12) and the bottom plate (11) and parallel to the top plate (12), the first support plate (5) being connected to the two trapezoidal support plates (13) respectively; In the second assembly, the first support member (2) is connected to a side of the first support plate (5) facing away from the top plate (12).

6. The device for testing the frame of a railway freight car according to claim 3, wherein It also comprises a web (6), wherein the web (6) is arranged to penetrate the two trapezoidal support plates (13) in a direction perpendicular to the trapezoidal support plates (13), and the web (6) is respectively connected to the top plate (12) and the bottom plate (11).

7. The device for testing the railway freight car frame according to claim 5, characterized in that, It also comprises a second support plate (7), wherein the second support plate (7) is located between the top plate (12) and the first support plate (5), and is connected to the top plate (12) and the first support plate (5) respectively.

8. The device for testing the railway wagon frame according to claim 3, wherein, It also comprises a hook (8), wherein the hook (8) is arranged on the trapezoidal support plate (13).

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