Auxiliary supporting device for movement of rotating arm of urban D-type train wheel set axle box
By designing a lightweight auxiliary support device for the movement of the wheel set axle box of the D-type urban train, and utilizing mortise and tenon structure and magnetic positioning, the problem of the existing device being bulky and cumbersome to operate has been solved, and convenient support and safe movement of the swing arm joint have been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-24
AI Technical Summary
The existing auxiliary support device for the movement of the wheel set axle box of the D-type train in the urban area is bulky, cumbersome to operate, and inconvenient to use.
A device comprising a wheel assembly, a support, a load-bearing base plate, a fixed side plate, a swivel joint positioning through hole, a rubber pad, and a first magnet is designed. The device is connected by a mortise and tenon structure and utilizes the combination of the rubber pad and the magnet to achieve rapid positioning and stabilization of the swivel joint, avoiding hard contact and detachment.
It achieves a lightweight and simple support device, which is easy to operate and quick to assemble, improving assembly efficiency and ensuring the safety and stability of the swing arm joint during movement, avoiding hard scratches and detachment.
Smart Images
Figure CN224029002U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to train maintenance technical field, concretely relates to a city area D type train wheel set axle box swing arm moving auxiliary support device. BACKGROUND
[0002] The city area D type train is the city area express line vehicle of vehicle basic width 3300mm. Figure 1 The structure diagram of the city area D type train wheel set axle box swing arm is shown, in the city area D type train bogie overhaul operation flow, the wheel set 1 and axle box swing arm 2 that are taken apart usually need together in track operation or short distance movement, at this moment need to use the moving auxiliary support device to support the swing arm joint 21 of axle box swing arm 2 (the moving auxiliary support device usually cooperates with the mandrel 22 of swing arm joint 21), to prevent swing arm joint 21 and ground contact friction to cause swing arm joint 21 damage. However, the current axle box swing arm moving auxiliary support device structure is cumbersome, and the operation is complicated, and it is not convenient to use. UTILITY MODEL CONTENTS
[0003] The utility model discloses a city area D type train wheel set axle box swing arm moving auxiliary support device, through the mutual matching of wheel assembly, support, bearing bottom plate, fixed side plate, swing arm joint positioning through -hole, rubber pad and first magnet, can effectively connect and support swing arm joint, and simple structure, easy operation, it is very convenient to use.
[0004] The utility model provides a city area D type train wheel set axle box swing arm moving auxiliary support device, including device body, device body comprises wheel assembly, support, bearing bottom plate and fixed side plate that connect gradually from below to top,
[0005] Among them, the fixed side plate is arranged on the side edge of the bearing bottom plate, the fixed side plate is parallel to the radial plane of the wheel assembly, the fixed side plate is perpendicular to the bearing bottom plate, and the fixed side plate and the bearing bottom plate form an axle box swing arm supporting space.
[0006] The side surface of the bearing bottom plate close to the axle box swing arm supporting space is provided with a rubber pad, the side surface of the fixed side plate close to the axle box swing arm supporting space is provided with a first magnet, and the fixed side plate is provided with a swing arm joint positioning through-hole, and the first magnet is arranged around the swing arm joint positioning through-hole.
[0007] Specifically, the wheel assembly, the support, the bearing bottom plate and the fixed side plate are welded and fixed.
[0008] Specifically, the wheel assembly, the support, the bearing bottom plate and the fixed side plate are connected based on the mortise and tenon structure.
[0009] Specifically, the wheel assembly comprises a polyurethane wheel and a wheel connecting piece, one end of the wheel connecting piece is rotationally connected with the polyurethane wheel, and the other end of the wheel connecting piece is fixedly connected with the support.
[0010] Specifically, the support is a hollow pipe column.
[0011] Specifically, the bearing bottom plate is a rectangular steel plate.
[0012] Specifically, the edge of the rotating arm joint positioning through hole is provided with a 45° chamfer.
[0013] Specifically, an elastic clamp sleeve is arranged in the rotating arm joint positioning through hole.
[0014] Specifically, the distance from the bearing bottom plate to the bottom of the wheel assembly is H, and the H satisfies 392mm≤H≤402mm.
[0015] Specifically, the side surface of the bearing bottom plate close to the shaft box rotating arm supporting space is further provided with a movable baffle, the movable baffle is arranged on the side edge of the bearing bottom plate, and the movable baffle is distributed opposite to the fixed side plate.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] The city area D type train wheel pair shaft box rotating arm moving auxiliary support device of the utility model, including wheel assembly, support, bearing bottom plate, fixed side plate, rotating arm joint positioning through hole, rubber pad and first magnet, simple structure, light, not heavy; in the use process, the staff only needs to lift the shaft box rotating arm, and the rotating arm joint positioning through hole is sleeved on the mandrel of the rotating arm joint, the operation is easy, and it is very convenient to use.
[0018] The base plate provides a stable platform for the swing arm joint, while the positioning holes on the fixed side plate allow for quick positioning of the swing arm joint's spindle. The perpendicular base plate and fixed side plate also stabilize the swing arm joint, facilitating the rapid assembly of the mobile auxiliary support device onto it. Furthermore, the rubber pads on the base plate act as a buffer and increase friction, effectively preventing the swing arm joint from slipping off the base plate under the weight of the axle box swing arm. Additionally, the first magnet surrounding the positioning holes attracts and secures the swing arm joint, preventing the mobile auxiliary support device from detaching due to vibration or tilting during movement, further ensuring the safety of the axle box swing arm during transport. Therefore, the positioning effect of the positioning through hole of the swing arm joint, the stabilizing effect of the mutually perpendicular bearing base plate and fixed side plate, the anti-slip effect of the rubber pad, and the adsorption effect of the first magnet can form multiple stabilizing effects on the swing arm joint. There is no need to use additional bolts, nuts and other connecting parts for fixing. So even though the structure of this mobile auxiliary support device is simple, it can effectively connect and support the swing arm joint. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of the wheel set axle box swing arm of a D-type train in the urban area;
[0021] Figure 2 This is a front view structural schematic diagram of the mobile auxiliary support device in an embodiment of this utility model;
[0022] Figure 3 This is a side view of the mobile auxiliary support device in an embodiment of this utility model;
[0023] Figure 4 This is a schematic diagram showing the position of the movable baffle in an embodiment of this utility model;
[0024] Figure 5 This is a schematic diagram of the structure of the movable baffle, baffle receiving groove, guide groove and guide hole in the embodiment of this utility model;
[0025] Figure 6 This is a schematic diagram of the storage state of the movable baffle in an embodiment of this utility model;
[0026] Figure 7It is the unfolding state schematic view of the movable baffle in the embodiment of the utility model.
[0027] In the drawings, 1, wheel set; 2, axle box rotating arm; 21, rotating arm joint; 22, mandrel; 100, wheel assembly; 110, polyurethane wheel; 120, wheel connecting piece; 200, support; 300, bearing bottom plate; 310, rubber pad; 400, fixed side plate; 410, first magnet; 420, rotating arm joint positioning through hole; 500, movable baffle; 510, baffle main body; 520, guide column body; 530, push block; 610, baffle containing groove; 611, push piece gap; 612, second magnet; 620, guide sliding groove; 621, third magnet; 630, guide sliding hole. DETAILED DESCRIPTION
[0028] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0029] The utility model provides a kind of city area D type train wheel set axle box rotating arm moving auxiliary support device, Figure 2 It shows the front view structural schematic diagram of the moving auxiliary support device in the embodiment of the utility model, Figure 3 It shows the side view structural schematic diagram of the moving auxiliary support device in the embodiment of the utility model, the moving auxiliary support device includes device body, the device body is sequentially connected by wheel assembly 100, support 200, bearing bottom plate 300 and fixed side plate 400 from bottom to top;Wherein, the fixed side plate 400 is arranged in the side edge of the bearing bottom plate 300, the fixed side plate 400 is parallel to the radial plane of the wheel assembly 100, the fixed side plate 400 is perpendicular to the bearing bottom plate 300, the fixed side plate 400 and the bearing bottom plate 300 form axle box rotating arm support space between;The rubber pad 310 is arranged on the side surface of the bearing bottom plate 300 close to the axle box rotating arm support space;The first magnet 410 is arranged on the side surface of the fixed side plate 400 close to the axle box rotating arm support space;Rotating arm joint positioning through hole 420 is arranged in the fixed side plate 400, and the first magnet 410 is arranged around rotating arm joint positioning through hole 420.
[0030] The utility model discloses a city area D type train wheel set axle box swing arm moving auxiliary support device, including wheel assembly 100, support 200, bearing bottom plate 300, fixed side plate 400, swing arm joint positioning through -hole 420, rubber pad 310 and first magnet 410, simple structure, light, not heavy, in the use process, the staff only needs to lift axle box swing arm, and swing arm joint positioning through -hole 420 can be set into the mandrel on swing arm joint, easy operation, use very convenient.
[0031] The overall weight of the mobile auxiliary support device is less than or equal to 15 kg, and the load capacity is greater than or equal to 100 kg, which is light and reliable. Through testing, it is found that the time required for assembling the mobile auxiliary support device to the swing arm joint is not more than 30 seconds, which greatly improves the assembly efficiency.
[0032] The bearing bottom plate 300 can provide a stable placement platform for the swing arm joint, the swing arm joint positioning through-hole 420 on the fixed side plate 400 can realize quick positioning of the mandrel of the swing arm joint, and the bearing bottom plate 300 and the fixed side plate 400 perpendicular to each other can form a stable effect on the swing arm joint, which facilitates quick assembly of the mobile auxiliary support device to the swing arm joint. Moreover, the rubber pad 310 on the bearing bottom plate 300 can play a buffering role and increase the friction force. Under the pressure of the weight of the axle box swing arm, the rubber pad 310 can effectively prevent the swing arm joint from slipping off the bearing bottom plate 300. Furthermore, the first magnet 410 surrounding the swing arm joint positioning through-hole 420 can attract and fix the swing arm joint, preventing the mobile auxiliary support device from falling off due to vibration, tilting and other factors during movement, and further ensuring the safety of the axle box swing arm during movement. Therefore, under the positioning effect of the swing arm joint positioning through-hole 420, the stable effect of the bearing bottom plate 300 and the fixed side plate 400 perpendicular to each other, the anti-slip effect of the rubber pad 310 and the attraction effect of the first magnet 410, a multiple stable effect can be formed on the swing arm joint. Without using additional bolts, nuts and other connecting parts for fixation, even if the mobile auxiliary support device is simple in structure, it can effectively connect and support the swing arm joint, effectively ensuring the safety of the axle box swing arm during movement.
[0033] In addition, the rubber pad 310 on the bearing bottom plate 300 can avoid hard contact between the swing arm joint and the bearing bottom plate 300, which is beneficial to prevent the swing arm joint from being scratched by vibration impact, so that the surface of the swing arm joint maintains a roughness Ra of less than or equal to 1.6 microns.
[0034] In some embodiments, the wheel assembly 100, the support 200, the bearing bottom plate 300 and the fixed side plate 400 are welded and fixed, which ensures the stability of the structure and simplifies the processing procedure.
[0035] In some specific embodiments, the wheel assembly 100, the support 200, the bearing bottom plate 300 and the fixed side plate 400 are connected based on a mortise and tenon structure, so that the mobile auxiliary support device can be disassembled into scattered parts for transportation; and when the mobile auxiliary support device needs to be repaired or replaced with a part, the repair or replacement operation can be completed by disassembling the mortise and tenon structure without cutting and welding; when the mobile auxiliary support device is assembled, only the tenon of each part is precisely inserted into the mortise to achieve stable connection, which can also ensure the overall structural stability of the mobile auxiliary support device and meet the support demand of the axle box rotating arm.
[0036] In some specific embodiments, referring to Figure 2 and Figure 3 , the wheel assembly 100 comprises a polyurethane wheel 110 and a wheel connecting piece 120, one end of the wheel connecting piece 120 is rotatably connected with the polyurethane wheel 110, and the other end of the wheel connecting piece 120 is fixedly connected with the support 200. The polyurethane wheel 110 can well adapt to track operation, and the noise generated during movement is small.
[0037] In some specific embodiments, referring to Figure 2 and Figure 3 , the support 200 is a hollow pipe column, which can effectively connect the bearing bottom plate 300 and the wheel assembly 100 to provide stable support for the mobile auxiliary support device.
[0038] In some specific embodiments, referring to Figure 2 and Figure 3 , the bearing bottom plate 300 is a rectangular steel plate, which can effectively bear the weight of the axle box rotating arm and provide a stable placement platform for the rotating arm joint. Specifically, the steel type of the rectangular steel plate is Q235A.
[0039] In some specific embodiments, the edge of the rotating arm joint positioning through hole 420 is provided with a 45° chamfer to avoid hard scratches on the core shaft of the rotating arm joint during installation and disassembly. Specifically, the length of the right angle side of the 45° chamfer is 2mm.
[0040] In some specific embodiments, the rotating arm joint positioning through hole 420 is provided with an elastic sleeve, and the inner diameter of the elastic sleeve is matched with the outer diameter of the core shaft of the rotating arm joint. When the core shaft of the rotating arm joint is inserted into the elastic sleeve, the elastic sleeve can tightly hold the core shaft, which can effectively improve the positioning stability of the rotating arm joint; and the elastic sleeve can avoid hard scratches on the core shaft of the rotating arm joint during installation and disassembly. Specifically, the material of the elastic sleeve is silica gel or rubber.
[0041] In some specific embodiments, the distance from the bearing bottom plate 300 to the bottom of the wheel assembly 100 is H, and the H satisfies: 392mm≤H≤402mm, so that the axle box rotating arm can be lifted to a suitable height, and the staff can push the wheel set and the axle box rotating arm manually.
[0042] Figure 4 The position diagram of the movable blocking piece is shown, the bearing bottom plate 300 is provided with a movable blocking piece 500 on one side surface close to the axle box rotating arm supporting space, the movable blocking piece 500 is arranged on one side edge of the bearing bottom plate 300, and the movable blocking piece 500 is distributed opposite to the fixed side plate 400.
[0043] Figure 5 The structure diagram of the movable blocking piece, the blocking piece containing groove, the guide sliding groove and the guide sliding hole is shown, the bearing bottom plate 300 is provided with a blocking piece containing groove 610, a guide sliding groove 620 and a guide sliding hole 630 which are sequentially communicated, the blocking piece containing groove 610 and the guide sliding groove 620 are exposed on the upper surface of the bearing bottom plate 300, and the guide sliding hole 630 is embedded in the bearing bottom plate 300; the blocking piece containing groove 610 comprises a first side edge and a second side edge which are perpendicular to each other, a pulling piece gap 611 is arranged at the first side edge of the blocking piece containing groove 610, and the pulling piece gap 611 is exposed on the side surface of the bearing bottom plate 300; the second side edge of the blocking piece containing groove 610 is communicated with the body of the guide sliding groove 620; one end of the guide sliding groove 620 communicated with the blocking piece containing groove 610 penetrates out of the side surface of the bearing bottom plate 300, the inner diameter of the guide sliding groove 620 is equal to that of the guide sliding hole 630, the guide sliding groove 620 and the guide sliding hole 630 are coaxial, a second magnet 612 is embedded in the blocking piece containing groove 610, and a third magnet 621 is embedded on the side of the guide sliding groove 620, and the third magnet 621 avoids the blocking piece containing groove 610.
[0044] The movable blocking piece 500 comprises an integrally formed blocking piece main body 510, a guide column body 520 and a pulling block 530, wherein the blocking piece main body 510 comprises a third side edge and a fourth side edge which are perpendicular to each other, the pulling block 530 is protrusively arranged at the third side edge of the blocking piece main body 510, the guide column body 520 is protrusively arranged at the fourth side edge of the blocking piece main body 510, and the guide column body 520 extends away from the third side edge.
[0045] Figure 6The utility model discloses an activity baffle's storage state schematic drawing is shown in the embodiment of the utility model, in the storage state of activity baffle 500, the baffle main part 510 is contained in the baffle containing groove 610, the poking block 530 protrudes the side of the bearing bottom plate 300 from the baffle gap 611, the guide cylinder 520 is located in the guide sliding groove 620 and the guide sliding hole 630, when, the second magnet 612 adsorbs the baffle main part 510,
[0046] Figure 7 The utility model discloses an activity baffle's deployment state schematic drawing is shown in the embodiment of the utility model, the deployment process of activity baffle 500 is: first, through the poking block 530, the baffle main part 510 is poked from the baffle containing groove 610, makes the baffle main part 510 vertical on the bearing bottom plate 300, then, the baffle main part 510 is pushed to the end of the guide sliding groove 620 to the direction of the guide sliding hole 630, when, the baffle main part 510 blocks in the retreat path of the rotation arm joint, the third magnet 621 adsorbs the baffle main part 510.
[0047] The city area D type train wheel pair axle box rotation arm mobile auxiliary support device is simple, light, not heavy, easy to operate, and very convenient to use.
[0048] The mobile auxiliary support device can form multiple stable effects on the rotation arm joint through the positioning effect of the rotation arm joint positioning through-hole 420, the stable effect of the mutually perpendicular bearing bottom plate 300 and the fixed side plate 400, the anti-slip effect of the rubber pad 310 and the adsorption effect of the first magnet 410, can effectively connect and support the rotation arm joint without using additional bolts, nuts and other connecting pieces for fixation, and effectively guarantee the safety of the axle box rotation arm during the movement.
[0049] Moreover, the rubber pad 310 on the bearing bottom plate 300 can avoid the hard contact between the rotary arm joint and the bearing bottom plate 300, which is beneficial to prevent the rotary arm joint from being knocked and scratched by vibration impact, so that the surface of the rotary arm joint can maintain a roughness Ra≤1.6μm; the edge of the rotary arm joint positioning through hole 420 is provided with a 45° chamfer, which can avoid the hard scratch of the metal edge on the shaft of the rotary arm joint during the installation and disassembly process; the elastic sleeve is arranged in the rotary arm joint positioning through hole 420, which can not only effectively improve the positioning stability of the rotary arm joint, but also can avoid the hard scratch of the shaft of the rotary arm joint; the movable baffle 500 is arranged on the bearing bottom plate 300, which can be actuated to block the retreat path of the rotary arm joint, so as to prevent the rotary arm joint from accidentally falling off the bearing bottom plate 300.
[0050] In addition, the wheel assembly 100, the support 200, the bearing bottom plate 300 and the fixed side plate 400 of the mobile auxiliary support device can be fixed by welding or connected by a mortise and tenon structure; the mobile auxiliary support device has a suitable height, which can lift the axle box rotary arm to a suitable height, so as to facilitate the staff to manually push the wheel set and the axle box rotary arm.
[0051] The above describes the mobile auxiliary support device for the wheel set axle box rotary arm of the city D-type train in detail, and the principle and implementation mode of the mobile auxiliary support device are described by using specific examples; the above embodiment is only used to help understand the method and the core idea of the mobile auxiliary support device; meanwhile, for the general technical personnel in the field, the specific implementation mode and the application range of the mobile auxiliary support device can be changed, and the above description should not be understood as the limitation of the mobile auxiliary support device.
Claims
1. A mobile auxiliary support device for the wheel set axle box of a D-type urban train, characterized in that, The device includes a main body, which comprises, from bottom to top, a wheel assembly, a support, a load-bearing base plate, and a fixed side plate connected in sequence. The fixed side plate is disposed on one side edge of the bearing base plate, the fixed side plate is parallel to the radial plane of the wheel assembly, the fixed side plate is perpendicular to the bearing base plate, and an axle box swing arm support space is formed between the fixed side plate and the bearing base plate; A rubber pad is provided on the surface of the bearing base plate near the axle box swing arm support space; a first magnet is provided on the surface of the fixed side plate near the axle box swing arm support space; a swing arm joint positioning through hole is opened in the fixed side plate, and the first magnet is arranged around the swing arm joint positioning through hole.
2. The auxiliary support device for moving the wheel set axle box of a D-type urban train as described in claim 1, characterized in that, The wheel assembly, the support, the load-bearing base plate, and the fixed side plate are welded and fixed together.
3. The auxiliary support device for moving the wheel set axle box of a D-type urban train as described in claim 1, characterized in that, The wheel assembly, the support, the load-bearing base plate, and the fixed side plate are connected by a mortise and tenon structure.
4. The auxiliary support device for moving the wheel set axle box swing arm of the urban D-type train as described in claim 1, characterized in that, The wheel assembly includes a polyurethane wheel and a wheel connector, one end of which is rotatably connected to the polyurethane wheel, and the other end of which is fixedly connected to the support.
5. The auxiliary support device for moving the wheel set axle box of a D-type urban train as described in claim 1, characterized in that, The support is a hollow tube column.
6. The auxiliary support device for moving the wheel set axle box swing arm of the urban D-type train as described in claim 1, characterized in that, The supporting base plate is a rectangular steel plate.
7. The auxiliary support device for moving the wheel set axle box swing arm of the urban D-type train as described in claim 1, characterized in that, The edge of the positioning through hole of the rotating arm joint is chamfered at 45°.
8. The auxiliary support device for moving the wheel set axle box swing arm of the urban D-type train as described in claim 1, characterized in that, An elastic sleeve is provided in the positioning through hole of the rotating arm joint.
9. The auxiliary support device for moving the wheel set axle box swing arm of the urban D-type train as described in claim 1, characterized in that, The distance from the bearing base plate to the bottom of the wheel assembly is H, and H satisfies: 392mm≤H≤402mm.
10. The auxiliary support device for moving the wheel set axle box of a D-type urban train as described in claim 1, characterized in that, A movable baffle is also provided on one side surface of the bearing base plate near the axle box swing arm support space. The movable baffle is located on one side edge of the bearing base plate and is distributed opposite to the fixed side plate.