Positioning device for side bearing on railway vehicle

Abstract

The utility model discloses a positioning device for a side bearing on a railway vehicle, and belongs to the technical field of railway vehicles. The positioning device for the side bearing on the railway vehicle comprises a center plate positioning assembly, a side bearing positioning assembly and a limiting piece. The center plate positioning assembly is used for being in positioning fit with an upper center plate on an underframe of a railway vehicle, the side bearing positioning assembly is used for being fixedly connected with an upper side bearing, the side bearing positioning assembly is slidably connected to the center plate positioning assembly in the height direction, and the limiting piece is used for being in positioning fit with the underframe. After the design is adopted, the side bearing positioning assembly can slide up and down along the center plate positioning assembly, so that the vertical height difference between the side bearing positioning assembly and the center plate positioning assembly can be changed within a certain range, the requirement on the dimensional accuracy of the upper side bearing can be reduced, the upper side bearing is convenient to process and manufacture, the assembly difficulty of the upper side bearing is reduced, and the production efficiency is improved. And the assembling efficiency and the assembling qualification rate of the upper side bearing are improved.

Description

Technical Field

[0001] The present application belongs to the technical field of railway vehicles, and in particular relates to a positioning device for a side bearing on a railway vehicle. Background Art

[0002] The upper side bearing is the connection point between the steel structure of the railway vehicle body and the bogie. The upper side bearing is installed on the underframe of the railway vehicle. The upper side bearing is in contact with the lower side bearing on the bogie, which plays a vital role in the safe operation of the railway vehicle.

[0003] In order to ensure the safe and effective coordination between the car body steel structure and the bogie, there are high requirements for the vertical height difference between the lower plane of the upper side bearing of the upper side bearing and the lower plane of the upper center plate of the upper center plate, as well as the distance from the transverse center of the upper side bearing to the axial centerline of the center plate hole.

[0004] The upper side bearing positioning device in the related art does not fully consider the tolerance range of the upper side bearing itself. During assembly, the size of the upper side bearing is required to be very precise, almost reaching the zero tolerance standard, which increases the difficulty and uncertainty of the upper side bearing assembly and makes the upper side bearing assembly qualification rate low. Summary of the invention

[0005] The present application aims to at least to some extent solve the technical problem of the high dimensional accuracy requirement of the upper side bearing in the related art. To this end, the present application provides a positioning device for the upper side bearing of a railway vehicle.

[0006] The embodiment of the present application provides a positioning device for an upper side bearing of a railway vehicle, which is used to position the upper side bearing on the underframe of the railway vehicle, comprising:

[0007] A center plate positioning assembly, used for positioning and cooperating with the upper center plate, wherein the upper center plate is fixedly connected to the base frame;

[0008] A side bearing positioning assembly is used for fixed connection with the upper side bearing; along the height direction, the side bearing positioning assembly is slidably connected to the center plate positioning assembly;

[0009] A limiting member is installed on the core plate positioning assembly or the side bearing positioning assembly, and is used for positioning and cooperating with the base frame.

[0010] In some embodiments, the center plate positioning assembly includes a sliding limiter, and the side bearing positioning assembly includes a sliding member, and the sliding member is slidably connected to the sliding limiter along the height direction so that the side bearing positioning assembly is slidably connected to the center plate positioning assembly.

[0011] In some embodiments, the sliding limiter has a connecting hole, the axial direction of the connecting hole is parallel to the height direction, and the sliding member is located in the connecting hole to be slidably connected to the sliding limiter.

[0012] In some embodiments, the cross-sections of the connecting hole and the sliding member are both circular;

[0013] The center plate positioning assembly includes a plurality of the sliding limit members, the side bearing positioning assembly includes the same number of sliding members as the sliding limit members, and the sliding limit members are arranged in a one-to-one correspondence with the sliding members.

[0014] In some embodiments, the sliding member has a sliding member limiting portion and a sliding portion connected thereto, and the sliding portion is slidably connected to the sliding limiting member;

[0015] The side bearing positioning assembly further comprises an upper side bearing first positioning member, and the upper side bearing first positioning member is used for positioning and cooperating with the upper side bearing lower plane of the upper side bearing;

[0016] The upper side bearing first positioning member is fixedly connected to the sliding part and is spaced apart from the sliding part limiting part;

[0017] The sliding limiting member is located between the limiting portion and the first positioning member of the upper side bearing.

[0018] In some embodiments, the side bearing positioning assembly further includes an upper side bearing second positioning member, and the upper side bearing second positioning member is mounted on the upper side bearing first positioning member; the upper side bearing second positioning member is used for positioning and cooperating with the mounting hole of the upper side bearing.

[0019] In some embodiments, the side bearing positioning assembly further includes an upper side bearing third positioning member, and the upper side bearing third positioning member is detachably connected to the upper side bearing second positioning member;

[0020] The third positioning member of the upper side bearing is spaced apart from the first positioning member of the upper side bearing to form a clamping area for clamping the upper side bearing together with the first positioning member of the upper side bearing.

[0021] In some embodiments, a clamping groove is provided on the second positioning member of the upper side support, and the third positioning member of the upper side support has a clamping portion, and the clamping portion is located in the clamping groove.

[0022] In some embodiments, the side bearing positioning assembly is provided with a plurality of the upper side bearing second positioning members;

[0023] A plurality of upper side bearing second positioning members are installed at intervals on the upper side bearing first positioning member;

[0024] The number of the third positioning members of the upper side bearing is consistent with the number of the second positioning members of the upper side bearing, and are arranged in a one-to-one correspondence with the second positioning members of the upper side bearing.

[0025] In some embodiments, the limiting member has a fixed portion and a limiting portion that are connected, the fixed portion is fixedly connected to the first positioning member of the upper side bearing, and the limiting portion is used for positioning and cooperating with the underframe of the railway vehicle.

[0026] In some embodiments, the limiting member has two limiting portions, which are spaced apart from the fixing portion and are respectively located on both sides of the first positioning member of the upper side bearing to form a clamping area for clamping the underframe of the railway vehicle.

[0027] In some embodiments, the core plate positioning assembly further includes a support frame and a core plate positioning pin;

[0028] The center plate positioning pin and the sliding stopper are both mounted on the support frame, and the center plate positioning assembly is positioned and matched with the center plate hole of the upper center plate through the center plate positioning pin.

[0029] The present invention has at least the following beneficial effects:

[0030] The positioning device for the side bearings on railway vehicles provided by the present invention comprises a center plate positioning assembly, a side bearing positioning assembly and a limiter. The center plate positioning assembly is used for positioning and cooperating with the upper center plate on the chassis of the railway vehicle, the side bearing positioning assembly is used for fixed connection with the upper side bearing, and along the height direction, the side bearing positioning assembly is slidably connected to the center plate positioning assembly, and the limiter is used for positioning and cooperating with the chassis. After such a design, the side bearing positioning assembly can slide up and down along the center plate positioning assembly, so that the vertical height difference between the side bearing positioning assembly and the center plate positioning assembly can vary within a certain range, thereby reducing the requirements for the dimensional accuracy of the upper side bearing, facilitating the processing and manufacturing of the upper side bearing, reducing the difficulty of assembling the upper side bearing, and improving the assembly efficiency and assembly qualification rate of the upper side bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 A schematic diagram showing a first perspective of a positioning device for a side bearing on a railway vehicle in one or more embodiments of the present application is shown.

[0033] Figure 2 Shows Figure 1 Enlarged view of point A in the middle.

[0034] Figure 3A schematic diagram showing the cooperation between a positioning device for an upper side bearing of a railway vehicle and an underframe, an upper center plate and an upper side bearing in one or more embodiments of the present application is shown.

[0035] Figure 4 Shows Figure 1 Middle top view.

[0036] Figure 5 Shows Figure 4 Cross-sectional view along direction BB.

[0037] Figure 6 A schematic diagram showing a second viewing angle of a positioning device for a side bearing on a railway vehicle in one or more embodiments of the present application is shown.

[0038] Figure 7 Shows Figure 6 Enlarged view of center C.

[0039] Figure 8 The assembly design drawings of the upper center plate and the upper side bearing in some schemes are shown.

[0040] Reference numerals: 100-positioning device for side bearing on railway vehicle, 110-center plate positioning assembly, 111-sliding stopper, 1111-connecting hole, 112-support frame, 1121-stopper plate, 1122-frame, 113-center plate positioning pin, 120-side bearing positioning assembly, 121-sliding member, 1211-sliding member stopper, 1212-sliding member, 122-first stopper of upper side bearing Positioning member, 123-upper side bearing second positioning member, 1231-holding groove, 124-upper side bearing third positioning member, 1241-holding portion, 130-limiting member, 131-fixing portion, 132-limiting portion, 200-upper side bearing, 210-mounting hole, 220-upper side bearing lower plane, 230-bottom plate, 300-upper center plate, 310-center plate hole, 320-upper center plate lower plane, 400-base frame. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0045] The upper side bearing is the connection point between the steel structure of the railway vehicle body and the bogie. The upper side bearing is installed on the underframe of the railway vehicle. The upper side bearing is in contact with the lower side bearing on the bogie, which plays a vital role in the safe operation of the railway vehicle.

[0046] In order to ensure the safe and effective coordination between the car body steel structure and the bogie, high requirements are imposed on the vertical height difference between the lower plane of the upper side bearing and the lower plane of the upper center plate, as well as the distance from the lateral center of the upper side bearing to the axial centerline of the center plate hole.

[0047] like Figure 8 As shown, in some design schemes, after the upper side bearing is assembled on the base frame, the vertical height difference between the upper side bearing lower plane 220 of the upper side bearing and the upper center plate lower plane 320 of the upper center plate is required to be 76mm±2mm, and the distance from the lateral center of the upper side bearing to the axial centerline of the center plate hole is 760mm±2mm.

[0048] For example, in the Chinese invention patent with patent publication number CN106425235A, the upper side bearing positioning device in the related technology does not fully consider the tolerance range of the upper side bearing itself. During assembly, the size of the upper side bearing is required to be very precise, almost reaching the zero tolerance standard, which increases the difficulty and uncertainty of the upper side bearing assembly and makes the upper side bearing assembly qualification rate low.

[0049] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0050] The embodiment of the present application provides a positioning device 100 for a side bearing on a railway vehicle. The core plate positioning assembly 110 and the side bearing positioning assembly 120 of the positioning device 100 for a side bearing on a railway vehicle provided in the embodiment of the present application are slidably connected along the height direction, which can reduce the requirements for the dimensional accuracy of the upper side bearing 200, facilitate the processing and assembly of the upper side bearing 200, and help improve the assembly efficiency and assembly qualification rate of the upper side bearing 200.

[0051] like Figure 1 , Figure 2 and Figure 3 As shown, a positioning device 100 for a side bearing on a railway vehicle (hereinafter referred to as the positioning device 100) is used to position an upper side bearing 200 on a chassis 400 of a railway vehicle, and includes a center plate positioning assembly 110, a side bearing positioning assembly 120, and a stopper 125. The center plate positioning assembly 110 is used to position and cooperate with the upper center plate 300, wherein the upper center plate 300 is fixedly connected to the chassis 400; the side bearing positioning assembly 120 is used to be fixedly connected to the upper side bearing 200; along the height direction, the side bearing positioning assembly 120 is slidably connected to the center plate positioning assembly 110; the stopper 125 is installed on the center plate positioning assembly 110 or the side bearing positioning assembly 120, and is used to position and cooperate with the chassis 400.

[0052] The function of the positioning device 100 of the present application is to maintain a precise positional relationship between the upper side bearing 200 and the upper core plate 300, so that after the upper side bearing 200 is fixed on the base frame 400, the vertical height difference between the upper side bearing lower plane 220 of the upper side bearing 200 and the upper core plate lower plane 320 of the upper core plate 300 and the distance from the lateral center of the upper side bearing 200 to the axial centerline of the core plate hole meet the design requirements.

[0053] Since there are manufacturing tolerances after the upper side bearing 200 is processed and manufactured, in the relevant technical solutions, the upper side bearing 200 can only be installed according to fixed dimensions, and the influence of the manufacturing tolerances of the upper side bearing 200 is ignored. When the upper side bearing 200 is installed on the chassis 400 of the railway vehicle, the vertical height difference between the lower plane 220 of the upper side bearing and the lower plane 320 of the upper center plate is difficult to meet the design requirements.

[0054] After the present application is designed in this way, the side bearing positioning assembly 120 can slide up and down along the core plate positioning assembly 110, so that the height dimension between the side bearing positioning assembly 120 and the core plate positioning assembly 110 can vary within a certain range, and when the upper side bearing 200 is installed, the upper side bearing 200 is fixed on the side bearing positioning assembly 120. Therefore, the upper side bearing 200 can move up and down within a certain range following the side bearing positioning assembly 120, so that even in the case of large manufacturing deviations, the upper side bearing 200 can also move the side bearing positioning assembly 120 up and down so that the vertical height difference between it and the upper core plate 300 meets the design requirements, thereby reducing the requirements for the dimensional accuracy of the upper side bearing 200, facilitating the processing and manufacturing of the upper side bearing 200, reducing the assembly difficulty of the upper side bearing 200, and improving the assembly efficiency of the upper side bearing 200.

[0055] If the upper side bearing 200 is positioned by a positioning device in the related art, the assembly failure rate of the upper side bearing 200 is 19%, while the assembly failure rate of the upper side bearing 200 can be reduced to 0% by using the positioning device 100 of the present application to position the upper side bearing 200. Therefore, the positioning device 100 of the present application can also improve the assembly qualification rate of the upper side bearing 200.

[0056] It should be noted that the range of the side bearing positioning assembly 120 sliding up and down along the core plate positioning assembly 110 is consistent with the allowable error range of the vertical height difference between the upper side bearing lower plane 220 and the upper core plate lower plane 320, so that the distance between the plane where the side bearing positioning assembly 120 positions the upper side bearing lower plane 220 and the plane where the core plate positioning assembly 110 positions the upper core plate lower plane 320 can be within the allowable range of the vertical height difference between the upper side bearing lower plane 220 and the upper core plate lower plane 320.

[0057] For example, in some embodiments, the vertical height difference between the upper side bearing lower plane 220 and the upper core plate lower plane 320 is 76mm±2mm. In these embodiments, the vertical height difference between the upper side bearing lower plane 220 and the upper core plate lower plane 320 is allowed to have an error of ±2mm. In these embodiments, the maximum range of the side bearing positioning assembly 120 sliding up and down along the core plate positioning assembly 110 is ±2mm, that is, the maximum upward sliding is 2mm, and the maximum downward sliding is 2mm, so that the distance between the plane where the side bearing positioning assembly 120 positions the upper side bearing lower plane 220 and the plane where the core plate positioning assembly 110 positions the upper core plate lower plane 320 can be within the range of 76mm-78mm to meet the installation requirements. The upper side bearing 200 can be fixed to the side bearing positioning assembly 120 by means of clamping, bolting, etc. It should be noted that the side bearing positioning assembly 120 and the upper side bearing 200 are detachably connected, so that after the upper side bearing 200 is installed on the base frame 400, the positioning device 100 can be smoothly removed from the upper center plate 300, the upper side bearing 200 and the base frame 400.

[0058] like Figure 2 and Figure 5 As shown, in some embodiments, the center plate positioning assembly 110 includes a sliding limiter 111, and the side bearing positioning assembly 120 includes a sliding member 121. The sliding member 121 is slidingly connected to the sliding limiter 111 along the height direction so that the side bearing positioning assembly 120 is slidingly connected to the center plate positioning assembly 110.

[0059] The sliding stopper 111 limits the sliding member 121 so that the sliding member 121 can only slide up and down along the height direction. The specific structure of the sliding member 121 and the sliding stopper 111 is not limited in this application. The number of the sliding member 121 and the sliding stopper 111 can be one or more.

[0060] like Figure 5 As shown, in some embodiments, the sliding limiter 111 has a connecting hole 1111 , the axial direction of the connecting hole 1111 is parallel to the height direction, and the sliding member 121 is located in the connecting hole 1111 to be slidably connected with the sliding limiter 111 .

[0061] The wall of the connection hole 1111 limits the position of the sliding member 121, and the shape and size of the cross section of the sliding member 121 should be adapted to the shape and size of the cross section of the connection hole 1111, so that the connecting member can be inserted into the connection hole 1111 and can slide up and down in the height direction along the wall of the connection hole 1111. In this way, the sliding member 121 is located in the connection hole 1111, and the connection hole 1111 can provide protection for the sliding member 121 to a certain extent, preventing the sliding member 121 from being damaged by collision.

[0062] like Figure 4 As shown, in some embodiments, the cross-sections of the connecting hole 1111 and the sliding member 121 are both circular; the center plate positioning assembly 110 includes a plurality of sliding limit members 111, and the side bearing positioning assembly 120 includes the same number of sliding limit members 121 as the sliding limit members 111, and the sliding limit members 111 and the sliding members 121 are arranged one-to-one.

[0063] The provision of multiple sliding stoppers 111 and sliding members 121 can improve the stability of sliding. The cross-sections of the connecting holes 1111 and the sliding members 121 are both circular, which can reduce the difficulty of processing the connecting holes 1111 and the sliding members 121.

[0064] In some embodiments, the center plate positioning assembly 110 is provided with two sliding stoppers 111, and the side bearing positioning assembly 120 is provided with two sliding stoppers 121. The two sliding stoppers 111 are spaced apart from each other with a certain distance therebetween.

[0065] like Figure 5As shown, in some embodiments, the sliding member 121 has a connected sliding member limiting portion 1211 and a sliding portion 1212, and the sliding portion 1212 is slidably connected to the sliding limit member 111; the side bearing positioning assembly 120 also includes an upper side bearing first positioning member 122, and the upper side bearing first positioning member 122 is used for positioning and cooperating with the upper side bearing lower plane 220 of the upper side bearing 200; the upper side bearing first positioning member 122 is fixedly connected to the sliding portion 1212, and is spaced apart from the sliding member limiting portion 1211; the sliding limit member 111 is located between the limiting portion 132 and the upper side bearing first positioning member 122.

[0066] The upper side bearing first positioning member 122 is fixedly connected to the sliding portion 1212 of the sliding member 121 , so the upper side bearing first positioning member 122 will slide synchronously with the sliding member 121 .

[0067] Since the sliding limiter 111 is located between the sliding limiter portion 1211 and the upper side bearing first positioning member 122, when the sliding member 121 slides until the sliding limiter portion 1211 contacts the sliding limiter 111, the sliding member 121 will not be able to continue to slide forward; when the sliding member 121 drives the upper side bearing first positioning member 122 to slide until it contacts the sliding limiter 111, the sliding member 121 will not be able to continue to slide forward.

[0068] In addition to limiting the sliding range of the sliding member 121, the upper side bearing first positioning member 122 can also be used to position the upper side bearing lower plane 220 of the upper side bearing 200, so that the upper side bearing 200 can be accurately fixed on the side bearing positioning assembly 120. Figure 3 As shown, when the positioning device 100 is in use, the lower end surface of the upper side bearing first positioning member 122 is in contact with the upper side bearing lower plane 220 , and the “plane where the side bearing positioning assembly 120 positions the upper side bearing lower plane 220 ” mentioned above is the lower end surface of the upper side bearing first positioning member 122 .

[0069] like Figure 5 As shown, in some embodiments, the sliding member limiting portion 1211 is connected to the upper end of the sliding member 1212, and the upper side bearing first positioning member 122 is connected to the lower end of the sliding member 1212. The height H from the lower end surface of the sliding member limiting portion 1211 to the upper end surface of the upper side bearing first positioning member 122 is greater than the height h of the sliding limiting member 111, so that the sliding member 121 can slide up and down.

[0070] The specific values ​​of height H and height h are not limited in this application, and users can make adaptive designs based on actual conditions.

[0071] In some embodiments, the vertical height difference between the upper side bearing lower plane 220 and the upper core plate lower plane 320 is 76 mm ± 2 mm. In these embodiments, the height H is 4 mm greater than the height h. With such a design, when the sliding member 121 slides to the sliding member limiter 1211 and contacts the sliding limiter 111, the distance between the plane where the side bearing positioning assembly 120 positions the upper side bearing lower plane 220 and the plane where the core plate positioning assembly 110 positions the upper core plate lower plane 320 is 78 mm; when the sliding member 121 drives the upper side bearing first positioning member 122 to slide to contact the sliding limiter 111, the distance between the plane where the side bearing positioning assembly 120 positions the upper side bearing lower plane 220 and the plane where the core plate positioning assembly 110 positions the upper core plate lower plane 320 is 74 mm.

[0072] like Figure 2 and Figure 5 As shown, in some embodiments, the side bearing positioning assembly 120 further includes an upper side bearing second positioning member 123, which is mounted on the upper side bearing first positioning member 122; the upper side bearing second positioning member 123 is used for positioning and cooperating with the mounting hole 210 of the upper side bearing 200.

[0073] The upper side bearing second positioning member 123 is fixedly connected to the upper side bearing first positioning member 122. The upper side bearing second positioning member 123 is inserted into the mounting hole 210 of the upper side bearing 200 to be positioned and matched with the mounting hole 210. The specific size, shape and number of the upper side bearing second positioning member 123 are related to the size, shape and number of the mounting hole 210, and are not limited here.

[0074] Specifically, in some embodiments, Figure 3 As shown, the upper side bearing 200 includes a bottom plate 230 , the lower end surface of the bottom plate 230 is the upper side bearing lower plane 220 , and the mounting hole 210 is formed on the upper side bearing lower plane 220 and passes through the bottom plate 230 .

[0075] In some embodiments, the upper side bearing second positioning member 123 is disposed on the lower end surface of the upper side bearing first positioning member 122. Two upper side bearing second positioning members 123 are provided, and the two upper side bearing second positioning members 123 are spaced apart. When positioning the upper side bearing 200, the upper side bearing second positioning member 123 is inserted into the mounting hole 210 of the upper side bearing 200 to limit the upper side bearing 200 from moving in the horizontal direction, and the lower end surface of the upper side bearing first positioning member 122 contacts the upper side bearing lower plane 220 to limit the upper side bearing 200 from moving upward in the height direction, as shown in FIG. Figure 3 shown.

[0076] like Figure 2 , Figure 3 , Figure 6 and Figure 7As shown, in some embodiments, the side bearing positioning assembly 120 also includes an upper side bearing third positioning member 124, which is detachably connected to the upper side bearing second positioning member 123; the upper side bearing third positioning member 124 is spaced apart from the upper side bearing first positioning member 122 to form a clamping area for clamping the upper side bearing 200 together with the upper side bearing first positioning member 122.

[0077] When the upper side bearing third positioning member 124 is connected to the upper side bearing second positioning member 123, a clamping area of ​​the upper side bearing 200 is formed between the upper side bearing first positioning member 122 and the upper side bearing third positioning member 124. Under the action of the upper side bearing first positioning member 122, the upper side bearing second positioning member 123 and the upper side bearing third positioning member 124, the upper side bearing 200 is fixed.

[0078] like Figure 3 As shown, in some embodiments, a mounting hole 210 is provided on the bottom plate 230 of the upper side bearing 200, the second positioning member 123 of the upper side bearing is inserted into the mounting hole 210, and its lower portion extends out of the mounting hole 210, and the third positioning member 124 of the upper side bearing is connected to the lower portion of the second positioning member 123 of the upper side bearing and is located at the lower side of the bottom plate 230, so that the bottom plate 230 of the upper side bearing 200 is clamped between the third positioning member 124 of the upper side bearing and the first positioning member 122 of the upper side bearing, thereby fixing the upper side bearing 200.

[0079] like Figure 7 As shown, in some embodiments, a retaining groove 1231 is provided on the upper side bearing second positioning member 123 , and the upper side bearing third positioning member 124 has a retaining portion 1241 , and the retaining portion 1241 is located in the retaining groove 1231 .

[0080] It should be noted that the clamping portion 1241 can be located inside the clamping slot 1231 or outside the clamping slot 1231. When the clamping portion 1241 is located inside the clamping slot 1231, a clamping area for clamping the upper side bearing 200 is formed between the upper side bearing third positioning member 124 and the upper side bearing first positioning member 122.

[0081] In these embodiments, after the upper side bearing second positioning member 123 is inserted into the mounting hole 210 and its lower portion extends out of the mounting hole 210, the clamping portion 1241 of the upper side bearing third positioning member 124 is inserted into the clamping groove 1231 to fix the upper side bearing 200.

[0082] like Figure 7 As shown, in some embodiments, a circle of retaining grooves 1231 is provided on the upper side bearing second positioning member 123 .

[0083] like Figure 6As shown, in some embodiments, the side bearing positioning assembly 120 is provided with a plurality of upper side bearing second positioning members 123; the plurality of upper side bearing second positioning members 123 are installed at intervals on the upper side bearing first positioning member 122; the number of upper side bearing third positioning members 124 is consistent with the number of upper side bearing second positioning members 123, and is arranged one-to-one with the upper side bearing second positioning members 123.

[0084] The provision of a plurality of upper side bearing second positioning members 123 and upper side bearing third positioning members 124 helps to ensure the reliability of the connection between the upper side bearing 200 and the side bearing positioning assembly 120 .

[0085] In some embodiments, two upper side bearing third positioning members 124 and two upper side bearing second positioning members 123 are provided.

[0086] like Figure 2 As shown, in some embodiments, the limiting member 130 has a connected fixing portion 131 and a limiting portion 132, the fixing portion 131 is fixedly connected to the upper side bearing first positioning member 122, and the limiting portion 132 is used for positioning and cooperating with the underframe 400 of the railway vehicle.

[0087] The limiting portion 132 of the limiting member 125 is positioned and matched with the base frame 400 to ensure a relatively accurate positional relationship between the positioning device 100 and the base frame 400.

[0088] In some embodiments, the limiting member 130 has two limiting portions 132 , which are spaced apart from the fixing portion 131 and are respectively located on both sides of the upper side bearing first positioning member 122 to form a clamping area for clamping the underframe 400 of the railway vehicle.

[0089] The two limiting parts 132 cooperate with the base frame 400 to help improve the positioning accuracy of the limiting member 125 and ensure a relatively accurate positional relationship between the positioning device 100 and the base frame 400.

[0090] Specifically, in some embodiments, when the positioning device 100 is placed on the base frame 400, the bolster on the base frame 400 for connecting with the upper side bearing 200 is located between two limiting portions 132, and the limiting portions 132 are in contact with the bolster to position and cooperate with the base frame 400 of the railway vehicle.

[0091] In some embodiments, the fixing portion 131 of the limiting member 125 is located above the first limiting member 125 of the upper side bearing 200, and is fixedly connected to the upper end surface of the first positioning member 122 of the upper side bearing. The two limiting portions 132 are respectively located at both ends of the fixing portion 131, and the upper ends of the limiting portions 132 are connected to the fixing portion 131. The limiting portions 132 are arranged downward in the height direction and are respectively located on both sides of the first positioning member 122 of the upper side bearing.

[0092] like Figure 1 and Figure 3 As shown, in some embodiments, the core plate positioning assembly 110 also includes a support frame 112 and a core plate positioning pin 113; the core plate positioning pin 113 and the sliding limit member 111 are both installed on the support frame 112, and the core plate positioning assembly 110 is positioned and matched with the core plate hole 310 of the upper core plate 300 through the core plate positioning pin 113.

[0093] The core plate positioning pin 113 and the sliding limiter 111 are both fixedly connected to the support frame 112 , and the core plate positioning pin 113 is inserted into the core plate hole 310 to be positioned and matched with the core plate 300 .

[0094] like Figure 3 , Figure 4 and Figure 6 As shown, in some embodiments, the support frame 112 includes a center plate limit plate 1121 and a frame body 1122, the limit plate 1121 is located below the frame body 1122 and is fixedly connected to the frame body 1122, the center plate positioning pin 113 is installed on the limit plate 1121, and the sliding limit member 111 is installed on the frame body 1122. In these embodiments, as Figure 3 As shown, the lower end surface of the center plate limit plate 1121 is used to contact the upper center plate lower plane 320 , and the “plane where the center plate positioning assembly 110 positions the upper center plate lower plane 320 ” mentioned above is the lower end surface of the center plate limit plate 1121 .

[0095] In some embodiments, the limiting plate 1121 is circular.

[0096] The structure of the center plate locating pin 113 is diverse and is not limited in the present application. In some embodiments, the center plate locating pin 113 adopts the locating pin disclosed in patent application number 2024107593675, and the axis of the locating pin can be accurately aligned with the axis of the center plate hole 310, which helps to ensure the position accuracy from the lateral center of the upper side bearing 200 to the axial centerline of the center plate hole 310.

[0097] It should be noted that, under the action of the limiting member 125 , after the core plate positioning pin 113 is inserted into the core plate hole 310 , the positioning device 100 will not rotate around the core plate positioning pin 113 .

[0098] like Figure 1 As shown, in some embodiments, the positioning device 100 includes two side bearing positioning assemblies 120 , and the two side bearing positioning assemblies 120 are respectively installed on both sides of the core plate positioning assembly 110 .

[0099] The provision of the two side bearing positioning assemblies 120 enables the positioning device 100 to simultaneously fix the two upper side bearings 200 and simultaneously position the two upper side bearings 200 , thereby helping to improve the installation efficiency of the upper side bearings 200 .

[0100] In some embodiments, the two side bearing positioning assemblies 120 are respectively installed on both sides of the length direction of the support frame 112, the center plate positioning pin 113 is set in the middle area of ​​the support frame 112 and located on the west side of the support frame 112, and the support frame 112 is located above the side bearing positioning assemblies 120.

[0101] The following Figure 3 The positioning device 100 shown introduces the method of using the positioning device 100:

[0102] like Figure 3 As shown, first, the base frame 400 is turned over by a hoisting device such as a crane, so that the upper center plate 300 on the base frame 400 faces;

[0103] Next, two upper side bearings 200 are placed on both sides of the bolster of the base frame 400 in the length direction;

[0104] Next, the operator places the positioning device 100 above the bolster, and aligns the center plate positioning pin 113 with the center plate hole 310, and aligns each upper side second positioning member 123 with each mounting hole 210 of the upper side bearing 200;

[0105] Next, the positioning device 100 is lowered so that the center plate positioning pin 113 is inserted into the center plate hole 310, and each upper side bearing second positioning member 123 is respectively inserted into each mounting hole 210; at this time, the two limiting portions 132 of the limiting member 130 are respectively located on both sides of the bolster width direction, that is, the bolster is located between the two limiting portions 132, and the limiting portion 132 contacts the bolster to be positioned and matched with the bolster of the base frame 400. Under the limiting action of the limiting member 125, the positioning device 100 will not rotate around the center plate positioning pin 113.

[0106] Next, the operator observes whether the height spacings between the sliding member stoppers 1211 and the sliding stoppers 111 on the same side bearing positioning assembly 120 are consistent. If not, the operator fine-tunes the upper side bearing 200 to make the spacings consistent.

[0107] Next, the operator inserts the upper side bearing third positioning member 124 into the retaining groove 1231 of the upper side bearing second positioning member 123, so that the upper side bearing 200 is fixed on the side bearing positioning assembly 120;

[0108] Next, the upper side bearing 200 is welded to the bolster of the base frame 400;

[0109] Finally, after welding is completed, the third positioning member 124 of the upper side bearing is pulled out from the clamping groove 1231 of the second positioning member 123 of the upper side bearing, and then the operator moves the positioning device 100 away, thereby completing the positioning and welding of the upper side bearing 200.

[0110] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0111] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0112] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A positioning device for a side bearing on a railway vehicle, characterized in that: Used for positioning an upper side bearing (200) on an underframe (400) of a railway vehicle, comprising: A core plate positioning assembly (110) is used for positioning and cooperating with an upper core plate (300), wherein the upper core plate (300) is fixedly connected to the base frame (400); A side bearing positioning assembly (120) is used for fixedly connecting with the upper side bearing (200); along the height direction, the side bearing positioning assembly (120) is slidably connected to the center plate positioning assembly (110); A limiting member (130), wherein the limiting member (130) is installed on the core plate positioning assembly (110) or the side bearing positioning assembly (120) and is used for positioning and cooperating with the base frame (400).

2. The positioning device for the side bearing on a railway vehicle according to claim 1, characterized in that: The center plate positioning assembly (110) includes a sliding limiter (111), and the side bearing positioning assembly (120) includes a sliding member (121). The sliding member (121) is slidably connected to the sliding limiter (111) along the height direction, so that the side bearing positioning assembly (120) is slidably connected to the center plate positioning assembly (110).

3. The positioning device for the side bearing on a railway vehicle according to claim 2, characterized in that: The sliding stopper (111) has a connecting hole (1111), the axial direction of the connecting hole (1111) is parallel to the height direction, and the sliding member (121) is located in the connecting hole (1111) to be slidably connected with the sliding stopper (111).

4. The positioning device for the side bearing on a railway vehicle according to claim 3, characterized in that: The cross sections of the connecting hole (1111) and the sliding member (121) are both circular; The center plate positioning assembly (110) includes a plurality of the sliding limit members (111), and the side bearing positioning assembly (120) includes the same number of sliding members (121) as the sliding limit members (111), and the sliding limit members (111) and the sliding members (121) are arranged in a one-to-one correspondence.

5. The positioning device (100) for a side bearing on a railway vehicle according to claim 2, characterized in that: The sliding member (121) comprises a sliding member limiting portion (1211) and a sliding portion (1212) which are connected, and the sliding portion (1212) is slidably connected to the sliding limiting member (111); The side bearing positioning assembly (120) further comprises an upper side bearing first positioning member (122), wherein the upper side bearing first positioning member (122) is used for positioning and cooperating with an upper side bearing lower plane (220) of the upper side bearing (200); The upper side bearing first positioning member (122) is fixedly connected to the sliding portion (1212) and is spaced apart from the sliding member limiting portion (1211); The sliding limiter (111) is located between the limiter portion (132) and the upper side bearing first positioning member (122).

6. The positioning device for the side bearing on a railway vehicle according to claim 5, characterized in that: The side bearing positioning assembly (120) further comprises an upper side bearing second positioning member (123), wherein the upper side bearing second positioning member (123) is mounted on the upper side bearing first positioning member (122); the upper side bearing second positioning member (123) is used for positioning and cooperating with the mounting hole (210) of the upper side bearing (200).

7. The positioning device for the side bearing on a railway vehicle according to claim 6, characterized in that: The side bearing positioning assembly (120) further comprises an upper side bearing third positioning member (124), wherein the upper side bearing third positioning member (124) is detachably connected to the upper side bearing second positioning member (123); The upper side bearing third positioning member (124) is spaced apart from the upper side bearing first positioning member (122) so as to form a clamping area for clamping the upper side bearing (200) together with the upper side bearing first positioning member (122).

8. The positioning device for the side bearing on a railway vehicle according to claim 7, characterized in that: The upper side bearing second positioning member (123) is provided with a clamping groove (1231), and the upper side bearing third positioning member (124) has a clamping portion (1241), and the clamping portion (1241) is located in the clamping groove (1231).

9. The positioning device for a side bearing on a railway vehicle according to claim 7, characterized in that: The side bearing positioning assembly (120) is provided with a plurality of upper side bearing second positioning members (123); A plurality of upper side bearing second positioning members (123) are installed at intervals on the upper side bearing first positioning member (122); The number of the upper side bearing third positioning members (124) is consistent with the number of the upper side bearing second positioning members (123), and they are arranged in a one-to-one correspondence with the upper side bearing second positioning members (123).

10. The positioning device for the side bearing on a railway vehicle according to claim 5, characterized in that: The limiting member (130) comprises a connected fixing portion (131) and a limiting portion (132); the fixing portion (131) is fixedly connected to the upper side bearing first positioning member (122); and the limiting portion (132) is used for positioning and matching with the underframe (400) of the railway vehicle.

11. The positioning device for a side bearing on a railway vehicle according to claim 10, characterized in that: The limiting member (130) has two limiting portions (132), the two limiting portions (132) are arranged at intervals on the fixing portion (131), and are respectively located on both sides of the upper side bearing first positioning member (122) to form a clamping area for clamping the underframe (400) of the railway vehicle.

12. The positioning device for a side bearing on a railway vehicle according to any one of claims 2 to 11, characterized in that: The core plate positioning assembly (110) further comprises a support frame (112) and a core plate positioning pin (113); The core plate positioning pin (113) and the sliding stopper (111) are both mounted on the support frame (112), and the core plate positioning assembly (110) is positioned and matched with the core plate hole (310) of the upper core plate (300) through the core plate positioning pin (113).

13. The positioning device for a side bearing on a railway vehicle according to any one of claims 1 to 11, characterized in that: The positioning device (100) for a side bearing on a railway vehicle comprises two side bearing positioning assemblies (120), wherein the two side bearing positioning assemblies (120) are respectively installed on both sides of the center plate positioning assembly (110).

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