Motor train unit axle paint drying repository
By designing a paint drying and storage warehouse for EMU axles, and adopting a double-layer structure and supporting wheel sets to support the axles, the problem of long paint drying time for axles was solved, resulting in shorter maintenance cycles and improved site utilization.
Patent Information
- Application Number
- CN202520345361.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-03
AI Technical Summary
In the existing technology, the paint drying time of the bogie axles of the CRH3 EMU is long, which leads to a longer maintenance cycle, requires a large area of space and ties up a lot of working capital.
Design a paint drying and storage warehouse for EMU axles. It adopts a double-layer structure, including a fixed support platform and a mobile support frame. The axles are supported by the first and second support wheel sets, which supports the rotation and angle adjustment of the axles, facilitates maintenance operations, and improves the utilization rate of the site.
The double-layer structure design significantly shortens the paint drying time of the axles, improves site utilization, meets production needs, and reduces the occupation of working capital.
Smart Images

Figure CN223765235U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of EMU axle maintenance systems, and in particular to a paint drying and storage warehouse for EMU axles. Background Technology
[0002] For a long time, after maintenance, the bogie axles of the CRH3 EMU need to be painted. The current method of paint drying is natural drying, which takes a long time (the primer takes at least 8 hours to dry naturally, and the topcoat takes at least 32 hours to dry naturally). This requires a large area of axle drying space and also increases the overall maintenance cycle of the axles. A large number of axles are needed to meet the wheelset maintenance cycle, which ties up a lot of working capital. Utility Model Content
[0003] The purpose of this invention is to provide a drying and storage warehouse for paint on high-speed train axles to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A paint drying and storage warehouse for high-speed train axles includes at least one fixed support platform and several sets of mobile support frames. The fixed support platform includes a top plate, several support columns, and several sets of first support wheel sets. The top plate is fixed to the upper end of the support columns. The first support wheel sets are distributed front to back and installed above the top plate. The mobile support frames can access the bottom of the fixed support platform. The mobile support frames include a frame, roller assemblies, and at least one set of second support wheel sets. Four sets of roller assemblies are provided and installed at the four corners of the frame. The second support wheel sets are installed at the middle position above the frame. Both the first and second support wheel sets are used to support both ends of the high-speed train axles.
[0006] In a further description of this utility model, the fixed support platform is provided in two sets and distributed on the left and right.
[0007] Further description of this utility model: a spacing is reserved between the two sets of fixed support platforms to store a row of walking support frames; nine walking support frames are provided, arranged in three rows and three columns, of which two columns of walking support frames are respectively located at the bottom of the two sets of fixed support platforms, and the other column of walking support frames is located between the two sets of fixed support platforms.
[0008] Further description of this utility model: the walking support frame further includes a direction control component; the roller assembly includes a roller bracket and rollers; the roller bracket includes a first mounting shaft, a first cross connecting plate, and a roller connecting ear plate connected sequentially from top to bottom; the first mounting shaft is connected to the frame via a bearing; the rollers are mounted on the roller connecting ear plates; the two sets of roller assemblies on the front and rear sides are connected by a first connecting rod; the two ends of the first connecting rod are respectively connected to one end of the first cross connecting plate of the two sets of roller assemblies; the direction control component is provided in two sets and is respectively connected to the two sets of roller assemblies on the left and right sides; the direction control component includes The system comprises a torsion shaft, a steering handle, a second connecting rod, and a third connecting rod. The torsion shaft includes a second cross connecting plate and a second mounting shaft connected to the bottom of the second cross connecting plate. The second mounting shaft is rotatably connected to the frame via bearings. The steering handle includes a connecting plate and a hand-held portion connected above the connecting plate. Both ends of the connecting plate are connected to both ends of the second cross connecting plate via positioning shafts. One end of the second connecting rod is connected to the second cross connecting plate, and the other end is connected to the first cross connecting plate of the left roller assembly. One end of the third connecting rod is connected to the second cross connecting plate, and the other end is connected to the first cross connecting plate of the right roller assembly.
[0009] Further description of this utility model: nine sets of first support wheel groups are arranged front and rear on the fixed support platform; two sets of second support wheel groups are arranged left and right on the traveling support frame; the first support wheel group includes two left support wheel brackets arranged front and rear on the left side, two right support wheel brackets arranged front and rear on the right side, and four first support wheels respectively installed on the left and right support wheel brackets; the second support wheel group includes two front support wheel brackets arranged left and right on the front side, two rear support wheel brackets arranged left and right on the rear side, and four second support wheels respectively installed on the front and rear support wheel brackets. This design can store all 36 toothed disc / brake disc axles, increasing the site utilization rate by 50% and meeting the production needs during peak production periods.
[0010] The beneficial effects of this utility model are as follows:
[0011] This design employs a double-layer structure. The lower layer uses a mobile support frame to store the axles, while the upper layer uses a fixed support platform. The mobile support frame can be stored at the bottom of the fixed support platform, significantly improving site utilization. Furthermore, the design uses a first and second set of support wheels to support the axles, facilitating axle rotation and angle adjustment. This allows operators to perform other maintenance tasks on the platform, and the mobile structure of the lower layer facilitates position changes. Attached Figure Description
[0012] Figure 1 This is an overall structural diagram of the present invention;
[0013] Figure 2 yes Figure 1 A magnified view of part A in the image;
[0014] Figure 3 This is a structural diagram of the walking support frame of this utility model;
[0015] Figure 4 This is a structural diagram of the roller assembly of this utility model;
[0016] Figure 5 This is a structural diagram of the torsion shaft of this utility model;
[0017] Figure 6 This is a structural diagram of the steering handle of this utility model. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings:
[0019] like Figure 1-6 As shown, a paint drying and storage warehouse for high-speed train axles includes at least one fixed support platform 1 and several sets of mobile support frames 2. The fixed support platform 1 includes a top plate 11, several support columns 12, and several sets of first support wheel sets 13. The top plate 11 is fixed to the upper end of the support columns 12. The first support wheel sets 13 are distributed front and rear and installed above the top plate 11. The mobile support frames 2 can access the bottom of the fixed support platform 1. The mobile support frame 2 includes a frame 21, roller assemblies 22, and at least one set of second support wheel sets 23. Four sets of roller assemblies 22 are provided and installed at the four corners of the frame 21. The second support... Wheel set 23 is installed at the middle position above frame 21; both the first support wheel set 13 and the second support wheel set 23 are used to support both ends of the train axle; this design adopts a double-layer structure design, with the lower layer using a mobile support frame 2 to store the axle and the upper layer using a fixed support platform 1 to store the axle. The mobile support frame 2 can be stored at the bottom of the fixed support platform 1, which greatly improves the site utilization rate. In addition, this design uses the first support wheel set 13 and the second support wheel set 23 to support the axle, which facilitates the rotation and angle adjustment of the axle, and makes it convenient for the operator to complete other maintenance work on the platform. The mobile structure design of the lower layer facilitates the replacement of the position.
[0020] Two sets of fixed support platforms 1 are arranged side by side, with a space reserved between the two sets of fixed support platforms 1 for storing a row of traveling support frames 2. Nine traveling support frames 2 are arranged in three rows and three columns, with two columns of traveling support frames 2 located at the bottom of the two sets of fixed support platforms 1 respectively, and the other column of traveling support frames 2 located between the two sets of fixed support platforms 1. This arrangement can greatly improve space utilization, store more axles, and the space reserved in the middle for a row of traveling support frames 2 also facilitates manual loading and unloading of workpieces.
[0021] The walking support frame 2 also includes a direction control component 24; the roller assembly 22 includes a roller bracket 221 and rollers 222; the roller bracket 221 includes a first mounting shaft 2211, a first cross connecting plate 2212, and a roller connecting ear plate 2213 connected sequentially from top to bottom; the first mounting shaft 2211 is connected to the frame 21 via a bearing; the rollers 222 are mounted on the roller connecting ear plate 2213; the two sets of roller assemblies 22 on the front and rear sides are connected by a first connecting rod 25; the first connecting rod 25 The two ends of the rod 25 are respectively connected to one end of the first cross connecting plate 2212 of the two sets of roller assemblies 22; the direction control assembly 24 is provided in two sets and is respectively connected to the two sets of roller assemblies 22 on the left and right sides; the direction control assembly 24 includes a torsion shaft 241, a steering handle 242, a second connecting rod 243 and a third connecting rod 244; the torsion shaft 241 includes a second cross connecting plate 2411 and a second mounting shaft 2412 connected to the bottom of the second cross connecting plate 2411; the second mounting shaft 2412 is connected by a bearing The steering handle 242 is rotatably connected to the frame 21; it includes a connecting plate 2421 and a handheld part 2422 connected above the connecting plate 2421; both ends of the connecting plate 2421 are connected to both ends of the second cross connecting plate 2411 via positioning shafts 2421-1; one end of the second connecting rod 243 is connected to the second cross connecting plate 2411, and the other end is connected to the first cross connecting plate 2212 of the left roller assembly 22; one end of the third connecting rod 244 is connected to the second cross connecting plate 2411. The other end is connected to the first cross connecting plate 2212 of the right roller assembly 22; the handheld part 2422 has an L-shaped structure. When the direction of the walking support frame 2 needs to be changed, the handheld part 2422 can be turned to drive the torsion shaft 241 to rotate. The second torsion shaft 241 drives the two sets of roller assemblies 22 connected to it to rotate through the second connecting rod 243 and the third connecting rod 244. Then, through the first connecting rod 25, it drives the other two sets of rollers 222 to rotate, thereby realizing the angle conversion and the direction can be changed 360°.
[0022] Nine sets of first support wheel groups 13 are arranged front and rear on the fixed support platform 1; two sets of second support wheel groups 23 are arranged left and right on the mobile support frame 2; the first support wheel group 13 includes two left support wheel brackets 131 arranged front and rear on the left side, two right support wheel brackets 132 arranged front and rear on the right side, and four first support wheels 133 respectively installed on the left support wheel brackets 131 and the right support wheel brackets 132; the second support wheel group 23 includes two front support wheel brackets 231 arranged left and right on the front side, two rear support wheel brackets 232 arranged left and right on the rear side, and four second support wheels 233 respectively installed on the front support wheel brackets 231 and the rear support wheel brackets 232. The two ends of the axle are supported by two support wheels respectively, and the axle can be rotated by directly moving it to adjust the direction.
[0023] The above description does not limit the technical scope of this invention. Any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this invention shall still fall within the scope of the technical solution of this invention.
Claims
1. A EMU axle paint drying storage warehouse, characterized in that: The application relates to a support platform for a motor train unit, which comprises at least one fixed support platform and a plurality of groups of walking support frames; the fixed support platform comprises a top plate, a plurality of support columns and a plurality of groups of first support wheel groups; the top plate is fixed to the upper ends of the support columns; the first support wheel groups are installed above the top plate and are distributed in front and back; the walking support frames can enter the bottom of the fixed support platform; the walking support frames comprise a frame, a roller assembly and at least one group of second support wheel groups; the roller assembly is provided with four groups and is installed at the four corner positions of the frame; the second support wheel groups are installed at the middle positions above the frame; the first support wheel groups and the second support wheel groups are used for supporting the two ends of the axles of the motor train unit.
2. The EMU axle paint drying storage warehouse according to claim 1, characterized in that: The fixed support platform is provided with two groups and is distributed on the left and right.
3. The EMU axle paint drying storage warehouse according to claim 2, characterized in that: The two groups of fixed support platforms are provided with a spacing for storing a group of walking support frames; the walking support frames are provided with nine groups and are distributed in three rows and three columns, wherein two groups of walking support frames are arranged at the bottoms of the two groups of fixed support platforms, and the other group of walking support frames is arranged between the two groups of fixed support platforms.
4. The EMU axle paint drying storage warehouse according to claim 1, characterized in that: The walking support frame further comprises a direction control assembly; the roller assembly comprises a roller support and a roller; the roller support comprises a first mounting shaft, a first cross connecting plate and a roller connecting lug plate which are sequentially connected from top to bottom; the first mounting shaft is connected with the frame through a bearing; the roller is installed on the roller connecting lug plate; the two groups of roller assemblies on the front and back sides are connected through a first connecting rod; the two ends of the first connecting rod are respectively connected with one end of the first cross connecting plates of the two groups of roller assemblies; the direction control assembly is provided with two groups and is respectively connected with the two groups of roller assemblies on the left and right sides; the direction control assembly comprises a twisting shaft, a steering handle, a second connecting rod and a third connecting rod; the twisting shaft comprises a second cross connecting plate and a second mounting shaft which is connected with the bottom of the second cross connecting plate; the second mounting shaft is rotatably connected with the frame through a bearing; the steering handle comprises a connecting plate and a hand holding part which is connected above the connecting plate; the two ends of the connecting plate are connected with the two ends of the second cross connecting plate through positioning shafts; one end of the second connecting rod is connected with the second cross connecting plate, and the other end is connected with the first cross connecting plate of the roller assembly on the left side; one end of the third connecting rod is connected with the second cross connecting plate, and the other end is connected with the first cross connecting plate of the roller assembly on the right side.
5. The EMU axle paint drying storage warehouse according to claim 1, characterized in that: The fixed support platform is provided with nine groups of first support wheel groups which are distributed in front and back; the walking support frame is provided with two groups of second support wheel groups which are distributed on the left and right; the first support wheel groups comprise two left support wheel supports which are distributed in front and back on the left side, two right support wheel supports which are distributed in front and back on the right side and four first support wheels which are respectively installed on the left support wheel supports and the right support wheel supports; the second support wheel groups comprise two front support wheel supports which are distributed on the left and right on the front side, two rear support wheel supports which are distributed on the left and right on the rear side and four second support wheels which are respectively installed on the front support wheel supports and the rear support wheel supports.