An assembly jig for the top cover of a hopper car

Abstract

The embodiment of the present application relates to the technical field of hopper cars. Specifically, it relates to an assembly jig for the composition of the top cover of a hopper car, including: a top cover template, which is detachably connected to the top cover composition of the hopper car main body, and a first installation hole is provided on the top cover template; a limit stop positioning plate, which is horizontally arranged on one side of the top cover template, and first positioning grooves adapted to the limit stops are provided on both sides of the limit stop positioning plate; a lever mounting seat positioning plate, which is arranged at the middle position below the limit stop positioning plate, an installation window is provided on the lever mounting seat positioning plate, and second installation holes are provided around the installation window; a bottom plate, which is arranged at the bottom of the top cover template, and the bottom surface of the bottom plate is adapted to the top surface of the fulcrum seat of the hopper car main body. By positioning the positions of the component compositions through the assembly jig, the accuracy of the assembly dimensions, perpendicularity, height, etc. between the various component compositions is effectively improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of hopper cars, and more specifically, to an assembly jig for the top cover assembly of a hopper car. Background Art

[0002] The top cover assembly of a hopper car generally includes components such as a top cover assembly, a spring seat assembly, a rocker assembly, a connecting rod assembly, a double-link lever assembly, a double-link lever mounting seat assembly, a rocker fulcrum seat assembly, and an opening and closing lever support.

[0003] In the related art, the installation of the rocker fulcrum seat assembly is often assembled by the method of manual scribing. Since the rocker fulcrum seat assembly is relatively heavy, 2-3 operators and a crane are required to cooperate in the operation. The working intensity of the workers is relatively high, and it is easy to have a large assembly error due to the cooperation of multiple people, resulting in misalignment of the rocker fulcrum seat assembly; when assembling the spring assembly and the limit stop assembly, due to the large error in measuring with a tape measure, it is also easy to have misalignment of the double-link lever fulcrum seat assembly, the spring assembly, the limit stop assembly, and the side wall stop. Summary of the Invention

[0004] The embodiments of the present application provide an assembly jig for the top cover assembly of a hopper car, aiming to solve the problem of easy misalignment during the assembly of the hopper car.

[0005] In a first aspect of the embodiments of the present application, an assembly jig for the top cover assembly of a hopper car is provided. The assembly jig includes:

[0006] A top cover template, which is detachably connected to the top cover assembly of the hopper car body, and a first mounting hole adapted to the mounting point position of the rocker assembly to be installed is provided on the top cover template;

[0007] A limit stop positioning plate, which is horizontally arranged on one side of the top cover template, and first positioning grooves adapted to the limit stop assembly are provided on both sides of the limit stop positioning plate;

[0008] A lever mounting seat positioning plate, which is arranged at the middle position below the limit stop positioning plate, an installation window is provided on the lever mounting seat positioning plate, and second mounting holes adapted to the mounting points of the lever mounting seat assembly are provided around the installation window;

[0009] A bottom plate, which is arranged at the bottom of the top cover template, and the bottom surface of the bottom plate is adapted to the top surface of the fulcrum seat assembly of the hopper car body.

[0010] Optionally, the top cover template includes two groups of first main boards and two groups of second main boards. The two groups of second main boards are located on the sides away from each other of the two groups of first main boards. The shape formed by the first main boards and the second main boards is adapted to the rocker composition of the hopper car body.

[0011] Optionally, a support rod is provided between the limit stop positioning plate and the second main board.

[0012] Optionally, the lever mounting seat positioning plate includes a support plate and a positioning panel. The positioning panel is arranged on the side close to the hopper car body. The support plates are arranged on both sides of the positioning panel and are perpendicular to the positioning panel.

[0013] Optionally, fulcrum seat positioning plates are provided on both sides of the bottom plate. The bottom surface of the fulcrum seat positioning plate is flush with the bottom surface of the bottom plate. The fulcrum seat positioning plate is provided with a third mounting hole adapted to the mounting hole formed by the fulcrum seat.

[0014] Optionally, the assembly jig further includes:

[0015] A tension spring positioning plate, which is arranged at the middle position of the top cover template and above the limit stop positioning plate. The tension spring positioning plate is provided with a second positioning groove adapted to the installation position of the tension spring seat. Slopes adapted to the running direction of the tension spring are provided on both sides of the tension spring positioning plate.

[0016] Optionally, a plurality of weight reduction holes are provided on both the top cover template and the bottom plate.

[0017] Optionally, a reinforcing rib plate is provided on the side of the assembly jig facing the hopper car body.

[0018] Optionally, the assembly jig further includes:

[0019] A side wall stop template, and the two ends of the side wall stop template are respectively abutting surfaces that abut against the top cover composition and the side wall stop composition.

[0020] Optionally, a plurality of weight reduction holes are provided on the side wall stop template.

[0021] Using an assembly jig composed of a hopper car roof cover provided in the present application, after all the components of the hopper car body are completely prepared, the components are pre-placed on the side wall of the hopper car body, and then the assembly jig is fixed to the hopper car body with the roof cover as a reference, so that all the component assemblies are located between the hopper car body and the assembly jig. The positions of all parts are marked and positioned through the assembly jig. Then, the top surface of the fulcrum seat assembly is aligned with the bottom surface of the bottom plate and fixedly connected to the hopper car body, the limit stop assembly is aligned with both ends of the limit stop positioning plate and fixedly connected to the hopper car body, and the double-link lever fulcrum seat assembly is attached to the lever mounting seat positioning plate and fixedly connected to the hopper car body. After all the component assemblies are fixed to the hopper car body, the assembly jig can be removed, and then further connections are made between the component assemblies and between the component assemblies and the hopper car body. By positioning the positions of the component assemblies through the assembly jig, the accuracy of the assembly dimensions, perpendicularity, height, etc. between the component assemblies is improved, effectively avoiding the dislocation that is likely to occur during the assembly of the hopper car. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 is a schematic diagram of the assembly jig proposed in an embodiment of the present application;

[0024] Figure 2 is a schematic diagram of the hopper car components and the side wall stop template proposed in an embodiment of the present application;

[0025] Figure 3 is a schematic diagram of the side wall stop template proposed in an embodiment of the present application.

[0026] Reference numerals in the drawings: 1. Roof cover template; 11. First main board; 12. Second main board; 13. First mounting hole; 14. Support rod; 2. Limit stop positioning plate; 21. First positioning groove; 3. Lever mounting seat positioning plate; 31. Support plate; 32. Positioning panel; 33. Second mounting hole; 4. Bottom plate; 41. Fulcrum seat positioning plate; 42. Third mounting hole; 5. Spring positioning plate; 51. Second positioning groove; 6. Side wall stop template; 7. Reinforcing rib plate; 8. Weight reduction hole; 9. Hopper car body; 91. Roof cover assembly; 92. Lever mounting seat assembly; 93. Fulcrum seat assembly; 94. Rocker assembly; 95. Spring seat; 96. Side wall stop assembly; 97. Limit stop assembly. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0028] The top cover assembly of the hopper car generally includes components such as the top cover assembly, spring seat assembly, rocker assembly, connecting rod assembly, double connecting rod assembly, double connecting rod mounting seat assembly, rocker fulcrum seat assembly, and opening and closing lever support, etc.

[0029] In the related art, the installation of the rocker fulcrum seat assembly is often assembled by the method of manual scribing. Since the rocker fulcrum seat assembly is relatively heavy, 2-3 operators and a crane are required to cooperate in the operation. The working intensity of the workers is relatively high, and it is easy to have relatively large assembly errors due to the cooperation of multiple people, resulting in misalignment of the rocker fulcrum seat assembly; when assembling the spring assembly and the limit stop assembly, due to the relatively large measurement error of the tape measure, it is also easy to have misalignment of the double connecting rod fulcrum seat assembly, spring assembly, limit stop assembly, and side wall stop.

[0030] The present application provides an assembly jig for the top cover assembly of a hopper car. Referring to Figure 1 and Figure 2 , the assembly jig includes:

[0031] A top cover template 1, which is detachably connected to the top cover assembly 91 of the hopper car body 9. The top cover template 1 is provided with a first mounting hole 13 adapted to the mounting point position of the rocker assembly 94 to be installed.

[0032] An installation plate is provided on the top cover assembly 91 of the hopper car body 9. When using the assembly jig, the assembly jig and the top cover assembly 91 serve as the mounting points and positioning references. Specifically, the top cover assembly 91 is connected to the assembly template through at least two sets of lead screw devices. The assembly template is arranged vertically on the top cover assembly 91. After connecting the lead screw devices to the assembly template, the attitude of the assembly template is adjusted through the lead screw devices so that the attitude of the assembly template is adapted to the position and attitude of each component to be installed.

[0033] The top cover template 1 is adapted to the rocker assembly 94. The first mounting holes 13 are arranged at the top of the top cover template 1 according to the positions of the mounting points of the rocker assembly 94. The rocker assembly 94 includes four rocker ends, which are respectively connected to two groups of top covers in the top cover assembly 91. Two mounting points are provided on each rocker end. Therefore, the first mounting holes 13 adapted thereto are provided on the top cover template 1. After the top cover template 1 is connected to the top cover assembly 91, the positions of the first mounting holes 13 are the positions where the mounting points of the rocker assembly 94 are located. During installation, the rocker assembly 94 is fixedly installed on the top cover template 1 through the first mounting holes 13, which can ensure the accurate position of the rocker assembly 94. Then, the rocker assembly 94 can be connected to the top cover assembly 91, so as to realize more accurate installation and positioning of the rocker assembly 94.

[0034] The limit stop positioning plate 2 is horizontally arranged on one side of the top cover template 1. The first positioning grooves 21 adapted to the limit stop assembly 97 are provided on both sides of the limit stop positioning plate 2.

[0035] Among them, the limit stop assembly 97 includes two groups of limit stop components, which are used to limit the movement range of the rocker assembly 94. The limit stop assembly 97 is inclined and arranged below the top cover assembly 91 and outside the rocker assembly 94. Therefore, the limit stop positioning plate 2 is arranged at a position on the ejector rod template that is adapted to the horizontal position of the limit stop assembly 97. The length of the limit stop positioning plate 2 is the distance between the two groups of limit stop components. When installing the limit stop components, aligning their ends with the two ends of the limit stop positioning plate 2 can determine the position, and then the limit stop assembly 97 can be spot-welded to the hopper car body 9.

[0036] Since the limit stop assembly 97 is inclined and installed on the hopper car body 9, right-angled first positioning grooves 21 are provided at both ends of the limit stop positioning plate 2. The right-angled surfaces of the first positioning grooves 21 are inclined and adapted to the edges of the limit stop assembly 97. When installing the limit stop assembly 97, align the right-angled edge of the limit stop assembly 97 with the first positioning groove 21, and then spot-weld it to the hopper car body 9 to complete the installation.

[0037] The lever mounting seat positioning plate 3 is arranged at the middle position below the limit stop positioning plate 2. An installation window is provided on the lever mounting seat positioning plate 3, and the second mounting holes 33 adapted to the mounting points of the lever mounting seat assembly 92 are arranged around the installation window.

[0038] There are four mounting points on the lever mounting seat assembly 92 of the rocker. During installation, first place the lever mounting seat at the position to be installed. After the assembly jig position is fixed, fit the lever mounting seat assembly 92 with the lever mounting seat positioning plate 3, align the mounting points of the lever mounting seat assembly 92 with the second mounting holes 33 on the lever mounting seat positioning plate 3 respectively, fix the position through bolts, and then fix the lever mounting seat assembly 92 at the preset position by spot welding.

[0039] The bottom plate 4 is arranged at the bottom of the top cover template 1, and the bottom surface of the bottom plate 4 is adapted to the top surface of the fulcrum seat assembly 93 of the hopper car body 9.

[0040] After the assembly template position is fixed, the bottom plate 4 is suspended, and the position of the bottom surface of the bottom plate 4 is the position of the top surface of the fulcrum seat assembly 93. Therefore, fit the top surface of the fulcrum seat assembly 93 with the bottom plate 4 to determine the position of the fulcrum seat assembly 93. After aligning the fulcrum seat assembly 93 with the bottom plate 4, spot welding it on the hopper car body 9 can determine the position of the fulcrum seat assembly 93.

[0041] After all the components of the hopper car body 9 are completely prepared, taking the assembly template and the top cover assembly 91 as the reference, and using each part of the assembly template as the standard to determine the positional relationship of each component. First, connect the limit stop assembly 97 with the limit stop positioning plate 2, the lever mounting seat assembly 92 with the lever mounting seat positioning plate 3, and the fulcrum seat assembly 93 with the bottom plate 4, so as to determine the position of each component relative to the top cover assembly 91. Then, spot weld each component on the hopper car body 9. After fixing each component on the hopper car body 9, the assembly jig can be removed. Then, further connect each component to each other and to the hopper car body 9. Positioning the components through the assembly jig improves the accuracy of the assembly dimensions, perpendicularity, height, etc. between each component, effectively avoiding the dislocation that is likely to occur during the assembly of the hopper car.

[0042] Refer to Figure 1 and Figure 2 In some embodiments, the top cover template 1 includes two groups of first main boards 11 and two groups of second main boards 12. The two groups of second main boards 12 are located on the side away from each other of the two groups of first main boards 11. The shape formed by the first main board 11 and the second main board 12 is adapted to the rocker assembly 94 of the hopper car body 9.

[0043] In the rocker assembly 94 of the hopper car body 9, there are two rockers. The rockers are in a Y shape. The bifurcated part at the top of the Y-shaped rocker is connected to the top cover assembly 91, and the bottom is connected to the lever mounting seat assembly 92. Therefore, the top cover template 1 is set to a shape adapted to the shape of the rocker, so as to more accurately position the rocker.

[0044] One end of two first main boards 11 is connected to the bottom board 4, and the other ends are arranged relatively close to each other. Two second main boards 12 are respectively arranged on the opposite sides of the two first main boards 11. One end of the second main board 12 is fixedly connected to the position near the middle of the lower main board, and the other end extends outwards, so that the first main board 11 and the second main board 12 form a Y-shaped structure. The directions of the first main board 11 and the second main board 12 are both parallel to the forked part at the top of the rocker. Two installation points are arranged on each forked part at the top of each group of rockers for connection with the top cover assembly 91. Therefore, there are eight first installation holes 13, which are distributed in pairs on the first main board 11 and the second main board 12. When installing the rocker, it is positioned through the first main board 11 and the second main board 12 that are adapted to its shape and the first installation holes 13, effectively improving the accuracy after the rocker is installed.

[0045] Specifically, a support rod 14 is arranged between the limit stop positioning plate 2 and the second main board 12. Two ends of the support rod 14 are respectively connected to the end of the limit stop positioning plate 2 and the middle position of the second main board 12, thereby improving the stability of the whole device.

[0046] Refer to Figure 1 and Figure 2 In some embodiments, the lever mounting seat positioning plate 3 includes a support plate 31 and a positioning panel 32. The positioning panel 32 is arranged on the side close to the hopper car body 9, and the support plate 31 is arranged on both sides of the positioning panel 32 and is perpendicular to the positioning panel 32.

[0047] Among them, the linkage assembly of the rocker assembly 94, that is, the double-lever assembly, is installed on the lever mounting seat assembly 92. Therefore, the position of the lever mounting seat assembly 92 is relatively close to the side of the hopper car body 9. Therefore, the positioning panel 32 is prominently arranged. Thus, after the position of the assembly jig is fixed, the positioning panel 32 is located on the side close to the hopper car body 9. The positional relationship between the positioning panel 32 and the top cover template 1 is the same as the positional relationship between the lever mounting seat assembly 92 and the rocker, so that after the lever mounting seat assembly 92 is fitted with the positioning panel 32, it can be welded to the hopper car body 9 and is more accurate relative to the position of the rocker.

[0048] There are two groups of support plates 31. The two groups of support plates 31 are integrally formed with the fixed panel and are formed by bending 90°. After the first main boards 11 are welded along the horizontal direction to form a strut, by respectively fixing the two ends of the support plate 31 between the limit stop positioning plate 2 and the support plate 31, the positioning panel 32 is fixed.

[0049] In some embodiments, fulcrum seat positioning plates 41 are arranged on both sides of the bottom board 4. The bottom surface of the fulcrum seat positioning plate 41 is flush with the bottom surface of the bottom board 4. The fulcrum seat positioning plate 41 is provided with a third installation hole 42 adapted to the installation hole of the fulcrum seat assembly 93.

[0050] There are two sets of rocker fulcrum seat assemblies 93, which are respectively used to support two rockers. The space reserved for installing other components is in the middle of the two sets of rocker fulcrum seat assemblies 93. Therefore, fulcrum seat positioning plates 41 are respectively arranged on both sides of the bottom plate 4 to position the two sets of rocker fulcrum seat assemblies 93. The bottom plate 4 and the fulcrum seat positioning plates 41 are integrally arranged. Two first main boards 11 are fixedly arranged on the fulcrum seat positioning plates 41 on both sides. When the entire assembly jig is fixed, the bottom plate 4 and the fulcrum seat positioning plates 41 are in a horizontal state.

[0051] The third mounting holes 42 on the fulcrum seat positioning plates 41 correspond one by one to the mounting points on the rocker fulcrum seat assemblies 93. After the assembly jig is fixed, the top surface of the fulcrum seat positioning plate 41 is attached to the bottom surface of the lever mounting seat, and the third mounting holes 42 and the mounting points on the rocker fulcrum seat assemblies 93 are connected one by one through bolts, then the position of the fulcrum seat positioning plate 41 can be determined. Then, the fulcrum seat positioning plate 41 is spot-welded to the hopper car body 9 to complete the connection of the hopper car body 9.

[0052] Refer to Figure 1 and Figure 2 , in some embodiments, the assembly jig further includes:

[0053] A tension spring positioning plate 5 is arranged at the middle position of the top cover template 1 and above the limit stop positioning plate 2. The tension spring positioning plate 5 is provided with a second positioning groove 51 adapted to the installation position of the tension spring seat 95. The two sides of the tension spring positioning plate 5 are provided with inclined surfaces adapted to the tension spring running direction.

[0054] The tension spring seat 95 is located at the middle position of the hopper car body 9. Two tension springs are arranged on the tension spring seat 95 and are respectively connected to the rocker assemblies 94 on both sides. Therefore, the position of the tension spring positioning plate 5 is at the middle position of the top cover template 1, so that the positional relationship between the tension spring positioning plate 5 and the top cover template 1 is adapted to the positional relationship between the tension spring seat 95 and the rocker assemblies 94.

[0055] The second positioning groove 51 is opened above the tension spring positioning plate 5. The distances between the second positioning groove 51 and the first main boards 11 on both sides are the same. The position where the bottom of the second positioning groove 51 is located is the longitudinal position of the tension spring seat 95. During installation, the tension spring seat 95 is attached to the bottom of the second positioning groove 51 to determine the position of the tension spring seat 95, and then the tension spring seat 95 is spot-welded to the hopper car body 9 to complete it. When the tension springs on the tension spring seat 95 are connected to the rocker assemblies 94, the tension springs are connected obliquely downward from the tension spring seat 95 to the rocker assemblies 94. Therefore, the two sides of the tension spring positioning plate 5 are provided with inclined surfaces sloping downward, and the slope is the same as the tension spring running direction, further improving the accuracy of the position of the tension spring seat 95.

[0056] In some embodiments, a plurality of weight reduction holes 8 are opened on both the top cover template 1 and the bottom plate 4.

[0057] A plurality of circular weight-reducing holes 8 are evenly spaced on the first main board 11 and the second main board 12, and a plurality of square weight-reducing holes 8 are evenly spaced on the bottom board 4, thereby reducing the weight of the entire device and facilitating operation and installation. At the same time, weight-reducing holes 8 are also provided on the tension spring positioning plate 5 to further reduce the weight of the entire device.

[0058] In some embodiments, a reinforcing rib plate is provided on the side of the assembly jig facing the hopper car body 9.

[0059] Among them, multiple parts of the assembly jig are welded and assembled. Therefore, an integral reinforcing rib plate 7 is provided on the assembly jig to improve the structural strength of each part. Two longitudinal reinforcing rib plates 7 are provided on the first main board 11, and the bottom of the reinforcing rib plate 7 is connected to the bottom board 4. A transverse reinforcing rib plate 7 is provided at the position on the top cover template 1 that is adapted to the top cover assembly 91. The end of the longitudinal reinforcing rib plate 7 is connected to its side wall. Another transverse reinforcing rib plate 7 is provided on the limit stop positioning plate 2, and the lever mounting seat positioning plate 3 is fixedly connected to its side wall.

[0060] Refer to Figure 2 and Figure 3 In some embodiments, the assembly jig further includes a side wall stop template 6. The two ends of the side wall stop template 6 are respectively abutting surfaces that abut against the top cover assembly 91 and the side wall stop assembly 96.

[0061] Specifically, the side wall stop template 6 and other parts of the assembly template are of a split design, that is, the side wall stop template 6 is installed and used separately. The plate surface shape of the side wall stop template 6 converges from one side to the other side. The wider end of the side wall stop template 6 is used to abut against the side wall of the top cover assembly 91, and the other end is used for the side wall stop assembly 96 to abut. One side wall of the side wall stop template 6 is recessed inward, and the radian is adapted to the radian of the side wall of the hopper car body 9. When in use, the recessed side wall of the side wall stop template 6 is attached to the side wall of the hopper car body 9, and the plate surface of the side wall stop template 6 is perpendicular to the side wall of the hopper car body 9. One end of the side wall stop template 6 is abutted against the side wall of the top cover plate, and then the side wall stop assembly 96 is abutted against the other end of the side wall stop template 6, and the installation position of the side wall stop assembly 96 can be determined.

[0062] A protrusion adapted to the shape of the side wall stop is provided at the wider end of the side wall stop template 6. When installing the side wall stop assembly 96, the side wall stop assembly 96 can be fitted with the protrusion, thereby making the positioning process more convenient.

[0063] In some embodiments, a plurality of weight-reducing holes 8 are provided on the side wall stop template 6. The weight-reducing holes 8 are evenly spaced on the side wall stop template 6, thereby reducing the weight of the side wall stop template 6 and making the installation process more convenient.

[0064] Specifically, when installing the various component components on the hopper car body 9, first pre-mount the various parts on the hopper car body 9, then use the top cover component 91 of the hopper car body 9 as a reference, connect the assembly template to the hopper car body 9 through the screw assembly, and align it with the top cover component 91, connect and position the rocker component 94 and the top cover template 1 through the first mounting hole 13, and then pre-fix the rocker component 94 on the top cover component 91, and after the limit stop component 97 is abutted and positioned with the limit stop positioning plate 2, the limit stop component 97 is spot welded to the hopper car body 9, and after the lever mounting seat component 92 is connected to the lever mounting seat positioning plate 3 through the second mounting hole 33, the lever mounting The mounting assembly 92 is spot-welded to the hopper car body 9, the rocker base is installed on the base through the third mounting hole 42, and then the rocker base is welded to the hopper car body 9. In addition, the position of the side wall stop assembly 96 is determined by the side wall stop template 6 with the top cover assembly 91 as a reference, and it is spot-welded to the side wall of the hopper car body 9. At this point, the marking and positioning of each main component assembly are completed. After the assembly template is disassembled, the component assemblies can be assembled. The position of the component assembly is positioned by the assembly sample, which improves the accuracy of the assembly size, verticality, height, etc. between the component assemblies, and effectively avoids the misalignment that is easy to occur during the assembly of the hopper car.

[0065] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0066] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0067] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present application.

[0068] Finally, it should also be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or terminal device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or terminal device comprising the said element.

[0069] The above has introduced in detail an assembly jig for a hopper car roof cover provided by the present application. Specific examples are used in this text to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. An assembly jig for the top cover assembly of a hopper car, based on a hopper car, the main body of the hopper car includes a top cover assembly, a spring seat, a rocker assembly, a connecting rod assembly, a double-link lever assembly, a lever mounting seat assembly, and a fulcrum seat assembly, characterized in that, The assembly jig includes: A top cover template (1), which is detachably connected to the top cover assembly (91) of the hopper car body (9). A first mounting hole (13) adapted to the mounting point position of the rocker assembly (94) to be installed is provided on the top cover template (1). A limit stop positioning plate (2), which is horizontally arranged on one side of the top cover template (1). First positioning grooves (21) adapted to the limit stop assembly (97) of the hopper car body are provided on both sides of the limit stop positioning plate (2). A lever mounting seat positioning plate (3), which is arranged at the middle position below the limit stop positioning plate (2). An installation window is provided on the lever mounting seat positioning plate (3), and second mounting holes (33) adapted to the mounting points of the lever mounting seat assembly (92) are provided around the installation window. A bottom plate (4), which is arranged at the bottom of the top cover template (1). The bottom surface of the bottom plate (4) is adapted to the top surface of the fulcrum seat assembly (93) of the hopper car body (9).

2. The assembled jig according to claim 1, wherein, The top cover template (1) includes two groups of first main boards (11) and two groups of second main boards (12). The two groups of second main boards (12) are located on the sides away from each other of the two groups of first main boards (11). The shape formed by the first main board (11) and the second main board (12) is adapted to the rocker assembly (94) of the hopper car body (9).

3. The assembly jig according to claim 2, wherein A support rod (14) is arranged between the limit stop positioning plate (2) and the second main board (12).

4. The assembly jig according to claim 1, wherein The lever mounting seat positioning plate (3) includes a support plate (31) and a positioning panel (32). The positioning panel (32) is arranged on the side close to the hopper car body (9), and the support plate (31) is arranged on both sides of the positioning panel (32) and is perpendicular to the positioning panel (32).

5. The assembly jig according to claim 1, characterized in that, Fulcrum seat positioning plates (41) are arranged on both sides of the bottom plate (4). The bottom surface of the fulcrum seat positioning plate (41) is flush with the bottom surface of the bottom plate (4). Third mounting holes (42) adapted to the mounting holes of the fulcrum seat assembly (93) are provided on the fulcrum seat positioning plate (41).

6. The assembly jig according to claim 1, characterized in that, The assembly jig further includes: A tension spring positioning plate (5), which is arranged at the middle position of the top cover template (1) and above the limit stop positioning plate (2). A second positioning groove (51) adapted to the installation position of the tension spring seat (95) is provided on the tension spring positioning plate (5). Inclined surfaces adapted to the tension spring direction are provided on both sides of the tension spring positioning plate (5).

7. The assembly jig according to claim 1, characterized in that, A plurality of weight reduction holes (8) are provided on both the top cover template (1) and the bottom plate (4).

8. The assembly jig according to claim 1, characterized in that, Reinforcing rib plates are arranged on the side of the assembly jig facing the hopper car body (9).

9. The assembly jig according to claim 1, wherein, The assembly jig further includes: A side wall stop template (6), and the two ends of the side wall stop template (6) are respectively abutting surfaces abutting against the top cover assembly (91) and the side wall stop assembly (96) of the hopper car body.

10. The assembled sample tool according to claim 9, wherein A plurality of weight reduction holes (8) are provided on the side wall stop template (6).

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