CN112976609A - Composite material underframe fixing hinge mounting structure and manufacturing method thereof - Google Patents
Composite material underframe fixing hinge mounting structure and manufacturing method thereof Download PDFInfo
- Publication number
- CN112976609A CN112976609A CN202110443140.6A CN202110443140A CN112976609A CN 112976609 A CN112976609 A CN 112976609A CN 202110443140 A CN202110443140 A CN 202110443140A CN 112976609 A CN112976609 A CN 112976609A
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- composite material
- underframe
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- fixed hinge
- hinge mounting
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- 239000002131 composite material Substances 0.000 title claims abstract description 72
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 239000006261 foam material Substances 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 27
- 239000010959 steel Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 7
- 239000004917 carbon fiber Substances 0.000 claims description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000001723 curing Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/545—Perforating, cutting or machining during or after moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/681—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F1/00—Underframes
- B61F1/08—Details
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides a composite material underframe fixed hinge mounting structure and a manufacturing method thereof, wherein an underframe comprises an underframe upper skin, an underframe lower skin and a foam material arranged between the underframe upper skin and the underframe lower skin, the underframe upper skin, the underframe lower skin and the foam material are co-cured into a whole, the end part of the underframe is provided with a fixed hinge mounting structure, the fixed hinge mounting structure comprises a composite material cavity arranged between the upper skin and the lower skin, the end part of the composite material cavity is provided with a flange plate for mounting a fixed hinge and a fixed hinge mounting seat, the fixed hinge mounting seat is fixedly connected to the flange plate, the flange plate is fixedly connected to the end part of the underframe, the composite material cavity is arranged at the inner side of the flange plate, the flange plate and the side surface of the composite material cavity are correspondingly provided with hole groups for mounting the fixed hinge, and the composite material cavity is used as an operation space for mounting the, Rigidity and the like.
Description
Technical Field
The invention belongs to the technical field of rail vehicle manufacturing, and particularly relates to a composite material underframe fixing hinge mounting structure and a manufacturing method thereof.
Background
The existing steel structure underframe of the tramcar is formed by assembling and welding a large number of plates and beams, the structural form is complex, the welding quantity is large, the welding deformation is large, the process is complex, and the requirements of weight reduction and energy consumption reduction are met. The composite material underframe can integrate the floor, the heat insulation material and the sound insulation material, the structure is simplified, the weight reduction effect is obvious, and the fixed hinge of the tramcar is connected with the underframe in a bolt connection mode. The installation requirement of the fixed hinge is met, firstly, the end connection structure of the underframe needs to have enough tensile strength and compression strength to meet the test requirement of the articulated type of the car coupler, secondly, the bolt connection mode is adopted to meet the requirement of the articulated disassembly, the traditional stainless steel metal car can adopt a plate-girder splicing or lapping structure to meet the installation space requirement of the bolt connection mode, and a thick metal plate is welded at the end part to meet the requirements of the articulated tensile working condition and the compression working condition. The composite material underframe is a sandwich solid structure consisting of fibers and core materials, so that the requirement of bolt fastening space is hardly met, and the strength and the rigidity meet the requirement of test working conditions. The invention needs to design a composite material underframe end structure suitable for installing a fixed hinge of a tramcar, and solves the problem that the connection between a solid composite material underframe structure and the fixed hinge meets the requirements in the aspects of strength and operation space.
Disclosure of Invention
The invention aims to design a composite material underframe fixed hinge mounting structure and a manufacturing method thereof, which meet the requirements of the connection strength and the mounting space of the composite material underframe fixed hinge mounting structure.
In order to achieve the purpose, the invention provides a composite material underframe fixing hinge mounting structure, wherein an underframe comprises an underframe upper skin, an underframe lower skin and a foam material arranged between the underframe upper skin and the underframe lower skin, the underframe upper skin, the underframe lower skin and the foam material are co-cured into a whole, a fixing hinge mounting structure is arranged at the end part of the underframe, the fixing hinge mounting structure comprises a composite material cavity arranged between the underframe upper skin and the underframe, a flange plate for mounting a fixing hinge and a fixing hinge mounting seat are arranged at the end part of the composite material cavity, the fixing hinge mounting seat is fixedly connected to the flange plate, the flange plate is fixedly connected to the end part of the underframe, the composite material cavity is arranged on the inner side of the flange plate, a hole group for mounting the fixing hinge is arranged at the corresponding position of the side surfaces of the flange plate and the composite material cavity.
Furthermore, the composite material cavity is a prefabricated part made of composite materials, the shape of the prefabricated part is a uncovered box structure with a hollow interior, the upper surface and the lower surface of the prefabricated part are respectively co-cured with the upper mask and the lower mask of the underframe into a whole, and the lower part of the prefabricated part is provided with a fabrication hole.
Furthermore, pre-buried backplate is equipped with to combined material cavity both sides, the flange board is fixed on pre-buried backplate.
Further, the inner side of the end part of the composite material cavity is fixedly connected with a flange plate embedded steel plate.
The middle parts of the flange plate, the prefabricated member and the flange plate embedded steel plate are correspondingly provided with hole groups for installing the fixed hinges, and the hole groups are through holes.
Furthermore, the hole group is formed by an upper row and a lower row of holes which are correspondingly arranged.
Furthermore, a threaded connecting block for fastening the fixed hinge mounting bolt is arranged in the hole group, and the threaded connecting block is
The type, the downside is that two cylinder upsides are platelike, and two columniform external diameters match with the internal diameter of punch combination, and two cylinders of threaded connection piece insert two holes that correspond about the punch combination simultaneously, and two cylinders are equipped with the internal thread hole.
The invention also provides a manufacturing method of the composite material underframe fixing hinge mounting structure, which comprises the following steps:
step 1: laying a layer on the upper mask of the underframe by adopting a composite material prepreg non-autoclave process, curing and molding, and executing the step 4;
step 2: prefabricating a composite material cavity by adopting a mold forming autoclave technology, and executing the step 3;
and step 3: fixedly connecting the flange plate embedded steel plate to the inner side of the composite material cavity, and executing the step 4;
and 4, step 4: placing the composite material cavity in the middle of the end part of the upper skin of the underframe, enabling the opening side of the composite material cavity to face the upper skin of the underframe, placing the embedded back plates at the end part of the underframe close to two sides of the composite material cavity, filling the periphery of the prefabricated part with foam materials, and executing the step 5;
and 5: paving and sticking a lower skin carbon fiber prepreg, co-curing the lower skin carbon fiber prepreg, the upper skin, the middle prefabricated part and the foam material into an integrally formed underframe structure, and executing the step 6;
step 6: the fixed hinge mounting seats are welded at two ends of the flange plate, the flange plate is fixedly connected to the embedded back plate, hole groups for mounting the fixed hinges are arranged on the flange plate, and the step 7 is executed;
and 7: the flange plate hole group is used as a reference to be matched with a composite material cavity and a group hole of a flange plate embedded steel plate, so that a through hole penetrating through the flange plate, the composite material cavity and the flange plate embedded steel plate is formed;
and 8: a fabrication hole is formed in the position of the bottom frame lower prefabricated part and communicated with the interior of the prefabricated part, a threaded connecting block with internal threads enters the composite material cavity through the fabrication hole, and a through hole penetrating through the flange plate, the composite material cavity and the flange plate embedded steel plate is inserted.
Further, the composite material cavity is a prefabricated part made of composite materials and is in a uncovered box structure with a hollow interior.
The prefabricated part of the fixed hinge mounting structure designed by the invention is molded by adopting a mold, so that the mounting precision can be well ensured; the fixed hinge mounting structure is arranged at the end part of the underframe and is integrally formed with the underframe, and the interior of the fixed hinge mounting structure provides an operation space for mounting the fixed hinge, so that the mounting requirement is met; the flange plate is arranged on the outer side of the end part of the fixed hinge mounting structure, the embedded steel plate is arranged inside the fixed hinge mounting structure, the fixed hinge is mainly connected with the bottom frame through the flange plate and the embedded steel plate, and when the fixed hinge mounting structure is connected with the bottom frame, the overall bearing requirements of the strength, the rigidity and the like of the connecting position of the fixed hinge can be guaranteed.
Drawings
FIG. 1 is a schematic view of a chassis structure;
FIG. 2 is a schematic view of a preform structure;
FIG. 3 is a side view of the shaft of the fixed hinge mounting structure;
FIG. 4 is a second side view of the fixed hinge mounting structure;
FIG. 5 is a top view of a fixed hinge mounting structure;
FIG. 6 is a cross-sectional view of an end of the undercarriage;
fig. 7 is a schematic view of the connection of the fixed hinge mounting structure and the chassis.
Wherein: 1. a chassis; 2. a flange plate; 3. the prefabricated part, 4, the threaded connection block; 5. embedding a steel plate in a flange plate; 6. a fixed hinge mounting base; 7. a countersunk bolt; 8. pre-burying a back plate;
101. covering the underframe; 102. a foam material; 103. a bottom frame lower skin; 201. a group of holes; 301. and (5) processing holes.
Detailed Description
Referring to fig. 1, the tramcar fixed hinge is connected with an underframe 1 in a bolt connection mode, the underframe 1 is of a composite material structure, a mold forming process is adopted, upper and lower skins of the underframe are solidified by continuous fibers in full length, a middle core material is foam, a fixed hinge mounting structure is arranged at the end part of the underframe, the fixed hinge mounting structure is added in the process of manufacturing the underframe, the periphery of the fixed hinge mounting structure is filled with foam, and finally co-solidification is integrated with the underframe.
Referring to fig. 2, the fixed hinge mounting structure comprises a preform 3 made of composite material, the preform 3 having a shape similar to a box structure with a hollow interior.
Referring to fig. 3 to 6, flange plate embedded steel plate 5 is fixedly connected to the inner side of prefabricated part 3, embedded back plates 8 are fixed to the two ends of the prefabricated part 3, the embedded back plates 8 are placed on the vertical face of the end portion of the bottom frame and attached to the two sides of the prefabricated part, foam materials 102 are filled in gaps of the outer side of the prefabricated part 3, the flange plate embedded steel plate 5, the embedded back plates 8 and the foam materials 102, the bottom frame lower skin 103 and the bottom frame upper skin 101 are co-cured to form an integrated carbon fiber composite bottom frame, the end portion side faces of the prefabricated part 3 are arranged on the bottom.
Referring to fig. 3 and 4, the fixed hinge mounting seat 6 is welded with the flange plate 2 and fixed with the embedded back plate 8 through the countersunk head bolt 7, and the embedded back plate 8 can be turned on site to match with a drill for tapping in order to ensure the mounting precision. The middle part of the flange plate 2 is provided with a hole group 201, and the hole group 201 is a through hole, as an embodiment, the hole group of the invention is a hole with an upper row and a lower row which are correspondingly arranged, and each row is provided with 5 holes. And (3) taking the flange plate hole group 201 as a reference to open the group holes of the prefabricated member and the flange plate embedded steel plate to form a through hole penetrating through the flange plate 2, the prefabricated member 3 and the flange plate embedded steel plate 5.
The bottom surface of the prefabricated part at the lower part of the underframe is provided with a fabrication hole 301, the fabrication hole 301 is a through hole, a threaded connecting block 4 for installing a fixed hinge can be placed in the fabrication hole, and a torque handle can be placed in the fabrication hole for threaded fastening operation.
Referring to fig. 2 and 3, when the fixed hinge is installed, the threaded connecting block 4 is firstly placed into the prefabricated member 3 from the fabrication hole 301, and the threaded connecting block 4 is
The type, the downside is that two cylinder upsides are the platelike, and two columniform external diameters match with the internal diameter of punch combination 201, and two columniform inboards are the screw hole, and threaded connection piece 4 penetrates in pre-buried steel sheet 5, and the mounting bolt of fixed hinge fastens with threaded connection piece 4's screw hole cooperation.
The underframe with the fixed hinge mounting structure is manufactured by the following method:
step 1: laying and curing the upper mask 101 of the underframe by adopting a composite prepreg non-autoclave assembly (OOA) process, and executing the step 4;
step 2: the carbon fiber prefabricated part 3 is independently formed by adopting an autoclave process, is in a box structure with a hollow interior, and executes the step 3;
and step 3: the flange plate embedded steel plate 5 is fixedly adhered to the inner side face of the prefabricated part 3 by glue, and the step 4 is executed;
and 4, step 4: referring to fig. 6 and 7, the prefabricated member 3 provided with the flange plate embedded steel plate 5 is placed in the middle of the end part of the upper skin 101 of the underframe, the opening side of the prefabricated member 3 faces the upper skin 101 of the underframe, the embedded back plates 8 are placed at the end parts of the underframe close to the two sides of the prefabricated member, the periphery of the prefabricated member 3 is filled with foam, and step 5 is executed;
and 5: paving and adhering a lower skin 103 carbon fiber prepreg, co-curing the lower skin 103 carbon fiber prepreg, the upper skin 101, the middle prefabricated member 3 and the foam material 102 into an integrally formed underframe structure, and executing the step 6;
step 6: turning the embedded back plate 8 at present, matching drilling and tapping to form a threaded hole, welding the fixed hinge mounting seats 6 at two ends of the flange plate 2, connecting the flange plate 2 with the threaded hole of the embedded steel plate 8 through a countersunk head bolt 7, arranging a hole group 201 on the flange plate, and executing the step 7;
and 7: a flange plate hole group is used as a reference to be provided with a composite material cavity and a flange plate embedded steel plate group hole, and a through hole penetrating through the flange plate 2, the prefabricated part 3 and the flange plate embedded steel plate 5 is formed;
and 8: the fabrication hole 301 is opened to chassis lower part prefab position, and inside the fabrication hole 301 led to 3 prefabs, the threaded connection piece 4 of the fixed hinge of installation can be put into to this fabrication hole 301 to carry out the screw-thread fastening operation, take threaded connection piece 4 to get into the prefab cavity through the fabrication hole, insert and run through in flange board 2, prefab 3 and the pre-buried steel sheet 5's of flange board through-hole.
The composite material underframe fixing hinge mounting structure and the manufacturing method thereof can well meet the requirements of space, strength, rigidity and the like for mounting the fixing hinge.
Claims (9)
1. A composite material underframe fixing and hinging mounting structure comprises an underframe upper skin (101), an underframe lower skin (103) and a foam material (102) arranged between the underframe upper skin and the underframe lower skin, wherein the underframe upper skin (101), the underframe lower skin (103) and the foam material (102) are co-cured into a whole, the composite material cavity is characterized in that a fixed hinge mounting structure is arranged at the end part of the underframe, the fixed hinge mounting structure comprises a composite material cavity arranged between an upper cover plate and a lower cover plate, the end part of the composite material cavity is provided with a flange plate (2) for mounting a fixed hinge and a fixed hinge mounting seat (6), the fixed hinge mounting seat (6) is fixedly connected onto the flange plate (2), the flange plate (2) is fixedly connected at the end part of the underframe, the composite material cavity is arranged on the inner side of the flange plate (2), hole groups for mounting the fixed hinge are arranged on corresponding positions of the side surfaces of the flange plate (2) and the composite material cavity, and the composite material cavity is used as an operation space for mounting.
2. The composite chassis fixed hinge mounting structure of claim 1, wherein: the composite cavity is a prefabricated part (3) made of composite materials, the shape of the prefabricated part is a hollow uncovered box structure, the upper surface and the lower surface of the prefabricated part (3) are respectively solidified with an upper mask (101) and a lower mask (103) of the underframe into a whole, and the lower part of the prefabricated part (3) is provided with a fabrication hole (301).
3. The composite material undercarriage fixed hinge mounting structure of claim 2, wherein: and embedded back plates (8) are arranged on two sides of the composite material cavity, and the flange plates (2) are fixed on the embedded back plates (8).
4. The composite material undercarriage fixed hinge mounting structure of claim 3, wherein: and the inner side of the composite material cavity is fixedly connected with a flange plate embedded steel plate (5).
5. The composite material undercarriage fixed hinge mounting structure of claim 4, wherein: the middle parts of the flange plate (2), the prefabricated member (3) and the flange plate embedded steel plate (5) are correspondingly provided with hole groups for installing fixed hinges, and the hole groups are through holes.
6. The composite material undercarriage fixed hinge mounting structure of claim 5, wherein: the hole group is formed by an upper row of holes and a lower row of holes which are correspondingly arranged.
7. The composite chassis fixed hinge mounting structure of claim 6, wherein: the hole group is provided with a threaded connecting block (4) for fastening a fixed hinge mounting bolt, and the threaded connecting block (4) is
The type, the downside is that two cylinder upsides are platelike, and two columniform external diameters match with the internal diameter of punch combination, and two cylinders of threaded connection piece (4) insert two holes that correspond about the punch combination simultaneously, and two cylinders are equipped with the internal thread hole.
8. A manufacturing method of a composite material underframe fixing hinge mounting structure is characterized by comprising the following steps:
step 1: paving a layer on the upper mask (101) of the underframe by adopting a composite material prepreg non-autoclave process, curing and molding, and executing the step 4;
step 2: prefabricating a composite material cavity by adopting a mold forming autoclave technology, and executing the step 3;
and step 3: fixedly connecting a flange plate embedded steel plate (5) to the inner side of the composite material cavity, and executing the step 4;
and 4, step 4: referring to fig. 6 and 7, placing the composite material cavity in the middle of the end part of the upper skin (101) of the underframe, enabling the opening side of the composite material cavity to face the upper skin (101) of the underframe, placing the embedded back plates (8) at the end parts of the underframe close to two sides of the composite material cavity, filling the periphery of the prefabricated part (3) with the foam material (102), and executing the step 5;
and 5: paving and adhering a lower skin (103) of carbon fiber prepreg, co-curing the lower skin, the upper skin (101), the middle prefabricated part (3) and the foam material (102) into an integrally-formed underframe structure, and executing the step 6;
step 6: the fixed hinge mounting seats (6) are welded at two ends of the flange plate (2), the flange plate is fixedly connected to the embedded back plate (8), hole groups for mounting the fixed hinges are arranged on the flange plate, and the step 7 is executed;
and 7: the flange plate hole group (201) is used as a reference to be matched with a group hole of the composite material cavity and the flange plate embedded steel plate (5) to form a through hole penetrating through the flange plate (2), the composite material cavity and the flange plate embedded steel plate (5);
and 8: a fabrication hole (301) is formed in the position of a prefabricated part on the lower portion of the underframe, the fabrication hole (301) is communicated with the interior of the prefabricated part (3), a threaded connecting block (4) with internal threads enters a composite material cavity through the fabrication hole (301), and a through hole penetrating through a flange plate (2), the composite material cavity and a flange plate embedded steel plate (5) is inserted.
9. The method of manufacturing a base frame with a fixed hinge mounting structure as set forth in claim 8, wherein: the composite material cavity is a prefabricated part (3) made of composite materials, and is in a uncovered box structure with a hollow interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110443140.6A CN112976609A (en) | 2021-04-23 | 2021-04-23 | Composite material underframe fixing hinge mounting structure and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110443140.6A CN112976609A (en) | 2021-04-23 | 2021-04-23 | Composite material underframe fixing hinge mounting structure and manufacturing method thereof |
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| CN112976609A true CN112976609A (en) | 2021-06-18 |
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| CN202110443140.6A Pending CN112976609A (en) | 2021-04-23 | 2021-04-23 | Composite material underframe fixing hinge mounting structure and manufacturing method thereof |
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| CN (1) | CN112976609A (en) |
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|---|---|---|---|---|
| CN203920747U (en) * | 2014-06-27 | 2014-11-05 | 成都市新筑路桥机械股份有限公司 | Hinged mount pad under a kind of 100% modern city tramway train |
| CN105539480A (en) * | 2016-01-05 | 2016-05-04 | 中车株洲电力机车有限公司 | Articulated motor train unit and articulating underpan thereof |
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| CN107738658A (en) * | 2017-09-27 | 2018-02-27 | 中车青岛四方机车车辆股份有限公司 | A kind of 100% low-floor tramcar vehicle body bottom frame |
| CN207579872U (en) * | 2017-11-28 | 2018-07-06 | 通号轨道车辆有限公司 | A kind of modern tram end beam of underframe thereof profile structure and chassis |
| CN214821040U (en) * | 2021-04-23 | 2021-11-23 | 中车长春轨道客车股份有限公司 | Composite material chassis fixing hinge mounting structure |
-
2021
- 2021-04-23 CN CN202110443140.6A patent/CN112976609A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203920747U (en) * | 2014-06-27 | 2014-11-05 | 成都市新筑路桥机械股份有限公司 | Hinged mount pad under a kind of 100% modern city tramway train |
| CN105539480A (en) * | 2016-01-05 | 2016-05-04 | 中车株洲电力机车有限公司 | Articulated motor train unit and articulating underpan thereof |
| CN106428080A (en) * | 2016-12-02 | 2017-02-22 | 中车长春轨道客车股份有限公司 | Railway vehicle head and chassis integrated structure and forming method |
| CN107738658A (en) * | 2017-09-27 | 2018-02-27 | 中车青岛四方机车车辆股份有限公司 | A kind of 100% low-floor tramcar vehicle body bottom frame |
| CN207579872U (en) * | 2017-11-28 | 2018-07-06 | 通号轨道车辆有限公司 | A kind of modern tram end beam of underframe thereof profile structure and chassis |
| CN214821040U (en) * | 2021-04-23 | 2021-11-23 | 中车长春轨道客车股份有限公司 | Composite material chassis fixing hinge mounting structure |
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