CN211139337U - Aluminum alloy subway end chassis structure - Google Patents
Aluminum alloy subway end chassis structure Download PDFInfo
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- CN211139337U CN211139337U CN201922157101.0U CN201922157101U CN211139337U CN 211139337 U CN211139337 U CN 211139337U CN 201922157101 U CN201922157101 U CN 201922157101U CN 211139337 U CN211139337 U CN 211139337U
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Abstract
The utility model provides an aluminum alloy subway end underframe structure, includes boundary beam, sleeper beam, aluminium floor, bogie buffer interface, bogie buffer, and aluminium floor is connected with the sleeper beam, and the curb girder is installed in aluminium floor both sides, its characterized in that: the bogie buffer device interface comprises an embedded sliding chute, a supporting section bar, a base plate with a threaded hole and a bolt, wherein the side surface of a sleeper beam is welded with the supporting section bar, the upper surfaces of the sleeper beam and the supporting section bar are welded on an aluminum floor and a boundary beam after welding, one part of the upper plane of the embedded sliding chute is welded with the supporting section bar and the sleeper beam, the other part of the upper plane of the embedded sliding chute is welded with the boundary beam, through-long grooves are formed in two sides of the embedded sliding chute, the base plate with the threaded hole is installed in the grooves, and the embedded sliding chute is installed and connected with the bogie buffer device through; the utility model discloses at the local increase vehicle section of boundary beam, replace the riveting joint form that takes place the geometry sudden change in the past, improve vehicle rigidity.
Description
Technical Field
The utility model relates to a subway vehicle aluminum alloy end chassis structure.
Background
In an aluminum alloy metro vehicle structure, an end underframe structure is composed of a boundary beam, a sleeper beam, an aluminum floor and a bogie buffer device interface. The bogie buffer device interface is used for connecting the end frame structure and the bogie buffer device. The bogie buffering device is a part of a bogie assembly and plays a role in ensuring the stability of a vehicle during high-speed running. In the conventional structure, the bogie buffer device interface is usually a steel casting which is riveted on the sleeper beam through rivets with different numbers and only makes direct contact with the sleeper beam, and on the other hand, the steel casting is connected with the bogie buffer device through bolts.
When the vehicle runs at high speed, the force of the bogie buffer device is transmitted to the sleeper beam through the steel casting and then transmitted to all parts of the end underframe through the sleeper beam. Because the steel castings are only in contact with the bolster, the strength and rigidity of the end underframe structure is not ideal during stressing. In addition, due to the life characteristics of the rivet itself, the buffer interface needs to be replaced periodically.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a new end chassis structure, solve the problem that end chassis structural strength and rigidity are relatively poor, the buffer interface needs periodic replacement.
In order to realize the utility model discloses the purpose, the utility model provides an aluminum alloy subway end chassis structure, including boundary beam, sleeper beam, aluminum floor, bogie buffer interface, bogie buffer, aluminum floor is connected with the sleeper beam, and the curb girder is installed in aluminum floor both sides, its characterized in that: the bogie buffer device interface comprises an embedded sliding groove, a supporting section bar, a base plate with a threaded hole and a bolt, wherein the side face of a sleeper beam is welded with the supporting section bar, the upper surfaces of the sleeper beam and the supporting section bar are welded on an aluminum floor and a boundary beam after welding, one part of the upper plane of the embedded sliding groove is welded with the supporting section bar and the sleeper beam, the other part of the upper plane of the embedded sliding groove is welded with the boundary beam, through long grooves are formed in two sides of the embedded sliding groove, the base plate with the threaded hole is installed in the grooves, and the embedded sliding groove is connected with the bogie buffer device through the bolt connected.
The supporting section bar is of a U-shaped structure with a leftward opening, the U-shaped groove is divided into two parts, and the side face of the sleeper beam is arranged at the upper part in the U-shaped groove and welded on the inner wall of the U-shaped groove.
The embedded sliding groove is in a step shape with a high left and a low right, the upper surface of the step is welded with the supporting section bar, and the lower surface of the step is welded with the bottom of the boundary beam, so that the local section of the boundary beam is enlarged through the embedded sliding groove, the welding area is increased, and the strength and the rigidity are improved.
The embedded sliding groove is narrow at the top and wide at the bottom, a base plate with a threaded hole arranged in the groove is matched with the shape of the groove, mounting grooves which are wider than the groove are respectively arranged in the grooves at two sides, and the base plate with the threaded hole slides into the groove through the mounting grooves and is uniformly distributed.
The supporting section bar and the sleeper beam structure are equal in thickness, the structural manufacturability is improved, the end underframe structure is not required to be clamped by manufacturing special tools, and good flatness of the supporting section bar and the sleeper beam after welding can be guaranteed.
The side of the embedded sliding groove is provided with an end reinforcing plate, so that the supporting rigidity is increased.
The utility model designs an embedded chute structure, which replaces the traditional steel casting as the interface of the bogie buffer device, and the interface can be simultaneously connected with the boundary beam and the sleeper beam; the local section of the boundary beam is enlarged through an embedded sliding chute, and the sliding chute structure is connected with the boundary beam and the sleeper beam through welding joints; the sliding groove structure and the underframe aluminum floor are connected in a welding mode by adopting a supporting section bar, and the section bar and the sleeper beam structure have the same thickness, so that the structural manufacturability can be improved; a base plate with a threaded hole is installed inside the sliding groove structure, and the base plate is connected with the bogie buffering device through a bolt. The novel end underframe structure can enable the interface of the buffer device to be connected with the sleeper beam and the boundary beam in a welding mode, when the alternating force of the bogie is transmitted to the end underframe structure, the boundary beam participates in bearing force, and the strength and the rigidity of the area can be greatly improved as the boundary beam is the part with the highest strength in the end underframe structure. In addition, the buffer device interface is changed from a riveting structure to a welding structure, and the buffer device interface does not need to be replaced periodically. The vehicle section is locally enlarged on the side beam, the traditional riveting joint form with geometric sudden change is replaced, and the vehicle rigidity is improved.
Drawings
FIG. 1 is a bottom view of the end chassis structure;
FIG. 2 is a front view of the end chassis structure;
FIG. 3 is a right side view of FIG. 2;
fig. 4 is a partially enlarged view of the drop-in chute structure.
Detailed Description
Referring to fig. 1-4, the present invention mainly comprises a boundary beam 1, a bolster beam 2, an aluminum floor 3, a bogie buffer interface 4, and a bogie buffer 5. The bogie buffer device interface 4 is composed of an embedded sliding groove 6, a supporting section bar 7, a base plate 8 with threaded holes and a bolt 9, wherein the aluminum floor 3 is connected with the boundary beam 1 in a welding mode, the sleeper beam 2 and the supporting section bar 7 are welded on the aluminum floor 3 and the boundary beam 1, and the embedded sliding groove 6 is welded with the boundary beam 1, the sleeper beam 2 and the supporting section bar 7 together. The embedded sliding groove 6 is equal to the boundary beam 1 in height after being installed.
The supporting section bar 7 is of a U-shaped structure with a leftward opening, the U-shaped groove is divided into two parts, and the side surface of the sleeper beam 2 is arranged in the U-shaped groove, and the upper part of the side surface of the sleeper beam is welded on the inner wall of the U-shaped groove. The thickness of the supporting section bar 7 is equal to that of the sleeper beam 2, so that the manufacturability of the structure can be improved, the end underframe structure is not required to be clamped by manufacturing special tools, and the good flatness of the welded supporting section bar and the sleeper beam can be guaranteed.
The embedded sliding groove 6 is in a step shape with a high left and a low right, the upper surface of the step is welded with the supporting section 7, and the lower surface of the step is welded with the bottom of the boundary beam 1, so that the local section of the boundary beam is enlarged through the embedded sliding groove, the welding area is increased, and the strength and the rigidity are improved. The embedded chute 6 is provided with a groove 12 on the installation surface, the groove is narrow at the top and wide at the bottom, the shape of the backing plate 8 with the threaded hole is matched with the shape of the groove, the backing plate is also narrow at the top and wide at the bottom, the grooves on the two sides are respectively provided with an installation groove 11 which is wider than the groove, and the backing plate with the threaded hole slides into the groove through the installation grooves and is uniformly distributed. The embedded sliding groove is connected with the bogie buffering device through a bolt connected in a threaded hole, and end reinforcing plates 10 are arranged on two sides of the embedded sliding groove.
When the structure is constructed, materials of the boundary beam part of the underframe are firstly processed and removed, and the sealing of a cavity is realized while the residual structural strength of the boundary beam is ensured; after the sleeper beam and the underframe boundary beam are assembled and welded, the supporting section bar is welded, the thickness of the supporting section bar is equal to that of the sleeper beam, the manufacturability of the structure can be improved, the end underframe structure is not required to be clamped by manufacturing special tools, and good flatness of the welded supporting section bar and the sleeper beam can be guaranteed; after the embedded sliding groove and the end reinforcing plate are welded, the embedded sliding groove and the end reinforcing plate fall into the side beam of the bottom frame together, and the connection of the sliding groove structure with the side beam of the bottom frame, the sleeper beam and the floor is realized in a welding mode, so that alternating force transmitted by the buffer device can be uniformly borne by the end bottom frame structure; the base plate with the threads is arranged in the embedded sliding groove structure and is connected with the bogie buffering device.
Claims (6)
1. The utility model provides an aluminum alloy subway end underframe structure, includes boundary beam, sleeper beam, aluminium floor, bogie buffer interface, bogie buffer, and aluminium floor is connected with the sleeper beam, and the curb girder is installed in aluminium floor both sides, its characterized in that: the bogie buffer device interface comprises an embedded sliding groove, a supporting section bar, a base plate with a threaded hole and a bolt, wherein the side face of a sleeper beam is welded with the supporting section bar, the upper surfaces of the sleeper beam and the supporting section bar are welded on an aluminum floor and a boundary beam after welding, one part of the upper plane of the embedded sliding groove is welded with the supporting section bar and the sleeper beam, the other part of the upper plane of the embedded sliding groove is welded with the boundary beam, through long grooves are formed in two sides of the embedded sliding groove, the base plate with the threaded hole is installed in the grooves, and the embedded sliding groove is connected with the bogie buffer device through the bolt.
2. The aluminum alloy subway end underframe structure of claim 1, wherein: the supporting section bar is of a U-shaped structure with a leftward opening, the U-shaped groove is divided into two parts, and the side face of the sleeper beam is arranged at the upper part in the U-shaped groove and welded on the inner wall of the U-shaped groove.
3. The aluminum alloy subway end underframe structure of claim 1, wherein: the embedded sliding groove is in a step shape with a high left and a low right, the upper surface of the step is welded with the supporting section bar, and the lower surface of the step is welded with the bottom of the boundary beam, so that the local section of the boundary beam is enlarged through the embedded sliding groove, the welding area is increased, and the strength and the rigidity are improved.
4. The aluminum alloy subway end underframe structure of claim 3, wherein: the embedded sliding groove is narrow at the top and wide at the bottom, a base plate with a threaded hole arranged in the groove is matched with the shape of the groove, mounting grooves which are wider than the groove are respectively arranged in the grooves at two sides, and the base plate with the threaded hole slides into the groove through the mounting grooves and is uniformly distributed.
5. The aluminum alloy subway end underframe structure of claim 1, wherein: the supporting section bar and the sleeper beam structure are equal in thickness.
6. The aluminum alloy subway end underframe structure of claim 4, wherein: the side of the embedded sliding groove is provided with an end reinforcing plate, so that the supporting rigidity is increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922157101.0U CN211139337U (en) | 2019-12-05 | 2019-12-05 | Aluminum alloy subway end chassis structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922157101.0U CN211139337U (en) | 2019-12-05 | 2019-12-05 | Aluminum alloy subway end chassis structure |
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| Publication Number | Publication Date |
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| CN211139337U true CN211139337U (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922157101.0U Active CN211139337U (en) | 2019-12-05 | 2019-12-05 | Aluminum alloy subway end chassis structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110861672A (en) * | 2019-12-05 | 2020-03-06 | 中车长春轨道客车股份有限公司 | Aluminum alloy end chassis structure and have subway vehicle of this end chassis structure |
| WO2022062108A1 (en) * | 2020-09-24 | 2022-03-31 | 中车南京浦镇车辆有限公司 | Connecting structure for rail vehicle bolster and floor plate |
-
2019
- 2019-12-05 CN CN201922157101.0U patent/CN211139337U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110861672A (en) * | 2019-12-05 | 2020-03-06 | 中车长春轨道客车股份有限公司 | Aluminum alloy end chassis structure and have subway vehicle of this end chassis structure |
| CN110861672B (en) * | 2019-12-05 | 2022-03-15 | 中车长春轨道客车股份有限公司 | Aluminum alloy end chassis structure and have subway vehicle of this end chassis structure |
| WO2022062108A1 (en) * | 2020-09-24 | 2022-03-31 | 中车南京浦镇车辆有限公司 | Connecting structure for rail vehicle bolster and floor plate |
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