CN113306588B - Rail vehicle trailer structure and trailer method - Google Patents
Rail vehicle trailer structure and trailer method Download PDFInfo
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- CN113306588B CN113306588B CN202110752272.7A CN202110752272A CN113306588B CN 113306588 B CN113306588 B CN 113306588B CN 202110752272 A CN202110752272 A CN 202110752272A CN 113306588 B CN113306588 B CN 113306588B
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- trailer
- hole
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- rail vehicle
- underframe
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- 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
Abstract
The invention discloses a rail vehicle trailer structure, which is characterized by comprising: the cantilever rib is positioned on the inner side of the side beam of the underframe and is provided with a first through hole; the trailer part is welded and fixed on the lower surface of the side beam of the underframe and comprises two stopping bosses which are arranged at intervals in the longitudinal direction, and the protruding direction of the stopping bosses faces downwards; the trailer tool comprises an installation part and a traction arm fixed at the lower end of the installation part, a trailer boss is arranged on the upper surface of the traction arm, a traction hole is also formed in the traction arm, and a second through hole is formed in the upper end of the installation part; when the trailer tool is installed on the cantilever rib through the bolt, the bolt penetrates through the first through hole and the second through hole, the dragging hole of the traction arm is located on the outer side of the side beam of the chassis, and the trailer boss is located between the two stop bosses. The invention can avoid arranging the C-shaped groove on the lower surface of the side beam of the underframe, is beneficial to improving the strength safety of the car body, reduces welding deformation rework and realizes further light weight.
Description
Technical Field
The invention relates to a rail vehicle trailer structure and a trailer method, belongs to the technical field of rail vehicles, and relates to a rail vehicle structure, in particular to a subway vehicle.
Background
In the manufacturing process of the power dispersion type railway passenger car or after the train is disassembled, the single-section car body does not have a complete power system, and independent transition transportation cannot be achieved. At present, when a vehicle body is transferred, an external auxiliary vehicle pulling device, such as a winch, a locomotive and other auxiliary power devices, is usually adopted to pull the vehicle body, so that the purpose of transferring the vehicle body along a rail is achieved. The locomotive running mode is limited to running on a common rail, a transition coupler is generally required to be added when a coupler part is dragged, or a coupler part transition towing seat (such as a towing seat with the application number of CN 201721395517) is utilized, so that the structure is complex and the cost is high.
The special transfer engineering vehicle mode is adopted, free transfer can be carried out in a trackless area, the mode is flexible, and the universality is higher. The transition engineering truck generally adopts the hoist engine to pull the automobile body, and is more convenient, and the cost is lower. When the winch is adopted for dragging, a dragging point needs to be provided at the front end of the side beam of the underframe of the car body, so that the car body can be dragged to a position close enough to the winch. Considering the influence of vehicle appearance contour limit, set up detachable trailer frock usually, dismantle when the vehicle normal operation, just install temporarily when needing to pull. In order to prevent the traction rope (including the steel wire rope) of the winch from being blocked by other parts of the body in the dragging process, dragging points need to be arranged below or outside the edge beam of the underframe, and when the dragging points are arranged below the edge beam, a longer cantilever structure needs to be stretched out, so that the temporary trailer tool is more effectively dragged by the side face of the body.
The existing C-shaped groove structure adopting the side surface of the car body to drag needs utilizes the lower part of the side beam profile of the underframe. A modular rail vehicle body, such as disclosed in patent publication No. CN111232002B, relates to a trailer utilizing an aluminum alloy body chassis side rail, and is fixed and towed by utilizing the extended flanged openings of the chassis side rail and the chassis side rail middle section C-shaped groove. The underframe boundary beam is a key bearing part of the car body, and simultaneously, the dragging process also needs to bear enough impact force, so that the existing C-shaped groove is directly produced when the underframe boundary beam profile is extruded, and a welding mode is not adopted. However, the C-shaped groove of the underframe boundary beam profile is of the same length as the C-shaped groove (the total length indicates that the C-shaped groove is as long as the underframe boundary beam profile) on the underframe boundary beam, and a notch is formed at the bottom of the underframe boundary beam, so that the strength and the rigidity of the car body are not good; when the lower surface part of the side beam of the underframe is welded with other parts, the side beam is easy to open, and easy to deform and even needs to be reworked; and the ineffective weight is increased, which is not beneficial to the light weight of the vehicle body.
Disclosure of Invention
To above-mentioned problem and not enough, the application provides a rail vehicle trailer structure and trailer method, can satisfy the implementation that the automobile body side was dragged, can not set up C type groove at the lower surface of chassis boundary beam section bar again, improves the intensity security of automobile body, reduces welding deformation and reworks, realizes further lightweight. The specific technical scheme is as follows.
A rail vehicle trailer structure, comprising:
the cantilever rib is positioned on the inner side of the side beam of the underframe, and a first through hole is formed in the cantilever rib;
the trailer part is welded and fixed on the lower surface of the side beam of the underframe and comprises two stopping bosses which are arranged at intervals in the longitudinal direction, and the protruding direction of the stopping bosses faces downwards; and
the trailer tool comprises an installation part and a traction arm fixed at the lower end of the installation part, a trailer boss is arranged on the upper surface of the traction arm, a traction hole is further formed in the traction arm, and a second through hole is formed in the upper end of the installation part;
when the trailer tool is installed on the cantilever rib through a bolt, the bolt penetrates through the first through hole and the second through hole, the dragging hole of the traction arm is located on the outer side of the side beam of the underframe, and the trailer boss is located between the two stopping bosses.
Adopt foretell technical scheme, can need not set up C type groove at the lower surface of chassis boundary beam, utilize the cantilever muscle that rail vehicle used commonly to and the trailer frock just can satisfy pulling of automobile body side, and the main power of pulling has been undertaken with two backstop bosss together to the trailer boss, is favorable to improving the intensity security of automobile body, reduces welding deformation and reworks, realizes further lightweight. The longitudinal direction refers to the longitudinal direction of the vehicle body, and the inward and outward directions (inner and outer sides) are relative to the inner and outer sides of the vehicle body.
Further, the rail vehicle trailer structure further comprises a vehicle lifting portion and a vehicle binding portion, the vehicle lifting portion and the trailer portion are integrally formed, the vehicle lifting portion and the trailer portion are welded and fixed to the lower surface of the underframe edge beam together, and the vehicle lifting portion comprises a pattern surface located below the lower surface of the underframe edge beam. Lift car portion and bind car portion integrated into one piece, the integrated level is higher, when lifting car portion and binding car portion and setting up the door opening below, can alleviate the stress concentration that the sudden change of structural rigidity below the door opening arouses. Preferably, the vehicle lifting part and the trailer part are formed by processing a plate, and the thickness of the vehicle lifting part is equivalent to the sum of the thicknesses of the trailer part and the stop boss. Therefore, the thickness mutation of the car lifting part can be relieved, and the problem that the welding seam stress of the common car lifting seat exceeds the standard due to the rigidity mutation is avoided.
Further, the car lifting part further comprises a connecting part located on the inner side of the side beam of the bottom frame, a car binding part is welded and fixed between the connecting part and the cantilever rib, and a round hole is formed in the car binding part. The car lifting part is arranged to be beneficial to improving the integration level of the car lifting part, and the structural stability of the car lifting part, the car binding part and the cantilever rib is enhanced. Preferably, the lower surface of the connecting portion is a smooth surface. The car lifting part is divided into a pattern surface and a smooth surface, so that car lifting equipment can be effectively identified and prevented from being pushed against the smooth surface of the cantilever when the car is lifted, and the safety of the car is ensured.
Further, the installation part is a box body with an opening, and the opening faces to the inner side of the side beam of the bottom frame. Set up the box body structure with the installation department, be favorable to improving the overall structure intensity of installation department, the opening is favorable to the installation and the dismantlement of fasteners such as bolt, gasket.
Further, an included angle alpha between the abutting surface of the stopping boss facing the trailer boss and the longitudinal direction is 70-88 degrees; the included angle between the abutting surface of the trailer boss facing the stopping boss and the longitudinal direction is also alpha. So set up, can make trailer boss and two backstop bosss support the back completely tightly and fix the trailer frock at the cantilever muscle again, can reduce like this or avoid the trailer frock to bring the damage risk for the cantilever muscle at the moment of flexure that drags the in-process and produce.
Furthermore, the first through hole and the second through hole are both waist-shaped holes, and the extending direction of the waist-shaped hole of the first through hole is perpendicular to the extending direction of the waist-shaped hole of the second through hole. After the trailer boss and the two stop bosses are completely and tightly abutted, the trailer tool can be accurately fixed on the cantilever rib.
Based on the same inventive concept, the invention also relates to a rail vehicle trailer method, which adopts the trailer structure and mainly comprises the following steps:
1) when the trailer is required to be towed, the trailer boss of the trailer tool is arranged between the two stop bosses of the trailer part, the trailer boss and the stop bosses are tightly propped, and then the trailer tool is fixed on the cantilever rib by utilizing the bolt;
2) and fixing the haulage rope in the dragging hole of the trailer tool, and dismantling the trailer tool from the cantilever rib after the trailer operation is completed.
Compared with the prior art, the invention has the following beneficial effects.
1) The trailer structure adopts a split type, and the detachable trailer tool can be temporarily installed according to the requirement, so that the vehicle limit is not influenced, and the use is convenient;
2) the trailer tool has small volume, compact and simple structure and low cost;
3) the integrated trailer part, the vehicle lifting part and the vehicle binding part can be used for vehicle erecting, binding and fixing, towing and the like, and can relieve stress concentration caused by sudden change of structural rigidity below the door opening, so that the integrated door opening is good in integration and very practical;
4) the trailer boss and the two stop bosses are matched for use, can be freely adjusted in a certain range to be in full contact, and synchronously bear force with a bolt for fixing a trailer tool, so that the structure safety is good;
5) the car lifting part is divided into the pattern surface and the smooth surface, so that the car lifting equipment can be effectively identified and prevented from being pushed against the smooth surface of the cantilever, and the car lifting safety is ensured.
Drawings
FIG. 1 is a schematic view of a vehicle body structure;
FIG. 2 is a schematic view of the position of the multi-function vehicle lift seat;
FIG. 3 is a schematic view of a trailer fixture attachment location;
FIG. 4 is a schematic cross-sectional view of the trailer tooling after installation;
FIG. 5 is a bottom view of the multi-function saddle;
fig. 6 is a first perspective view of the trailer tool (the first view and the use are upside down);
fig. 7 is a second perspective view of the trailer tool (the illustrated state and the use state are upside down);
FIG. 8 is a top view of the trailer tooling;
fig. 9 is a bottom view of the trailer tooling after installation.
In the figure: the vehicle body comprises a vehicle body 1, a passenger room door opening 1a, an underframe boundary beam 11, a cantilever rib 111, a first through hole 111a, a sleeper beam 12, a multifunctional vehicle lifting seat 2, a trailer part 21, a stop boss 211, a vehicle lifting part 22, a pattern surface 221, a connecting part 222, a vehicle binding part 23, a trailer tool 3, a dragging hole 3a, a second through hole 3b, a dragging arm 31, an installation part 32, a trailer boss 33 and a bolt 4.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
The subway vehicle trailer structure is shown in figure 1 and mainly comprises a vehicle body 1, a multifunctional vehicle lifting seat 2 and a trailer tool 3. The multifunctional saddle 2 is positioned at two ends of the underframe boundary beams 11 at two sides below the underframe of the car body 1 and is positioned at the longitudinal outer side of the sleeper beam 12 for mounting the bogie. The multifunctional saddle 2 can be arranged near the door opening 1a of the passenger room according to the space arrangement.
Fig. 2 is a schematic structural view of the multi-functional saddle. The multifunctional lift saddle 2 is positioned at the lower side of the underframe side beam 11, and the multifunctional lift saddle 2 comprises a trailer part 21, a lift part 22 and a binding part 23. Wherein trailer portion 21 and lift car portion 22 all with chassis boundary beam 11's lower surface welded fastening, it is the U type to lift car portion 22, be located chassis boundary beam 11 lower surface, it includes the decorative pattern face 221 that is located chassis boundary beam 11 lower surface below and is located the inboard connecting portion 222 of chassis boundary beam 11 to lift car portion 22, welded fastening has car portion 23 of tying up between connecting portion 222 and the cantilever muscle 111, the round hole has been seted up on car portion 23 of tying up, the lower surface of connecting portion 222 is the smooth surface, car portion 23 of tying up is used for fixed core pin or ties up the rope. The trailer part 21 is provided with two stopping bosses 211 arranged at intervals in the longitudinal direction, the protruding direction of the stopping bosses 211 faces downwards, and the stopping bosses 211 correspond to the first through holes 111a on the cantilever ribs 111.
The cantilever rib 111 is formed by processing an extruded rib plate of the section bar of the underframe boundary beam 11, and the cantilever rib 111 can be full-length or broken by machining.
Fig. 3 and 4 are schematic diagrams of the fixed position of the trailer tool. The trailer tool 3 is placed at the trailer part 21 of the multifunctional vehicle lift seat 2, the bolt 4 penetrates through the top of the cantilever rib 111 and the mounting part 32 of the trailer tool 3, the bolt 4 penetrates through the first through hole 111a and the second through hole 3b, the trailer tool 3 is fixed on the cantilever rib 111 through the bolt 4, and the traction arm 31 of the trailer tool 3 protrudes out of the outer contour of the side face of the vehicle body 1.
Fig. 5 is a plan view of the structure of the multi-function saddle. The trailer part 21 and the vehicle lifting part 22 on the multifunctional vehicle lifting seat 2 are processed by the same plate material and are not required to be connected through welding seams. The thickness of the car lifting part 22 is equal to the sum of the thicknesses of the trailer part 21 and the stopping boss 211, the included angle alpha between the abutting surface of the stopping boss 211 facing the trailer boss 33 and the longitudinal direction is also included, and the included angle alpha between the abutting surface of the trailer boss 33 facing the stopping boss 211 and the longitudinal direction is also included. The pattern surface 221 of the lift portion 22 is aligned with the trailer portion 21, and the smooth surface 222 protrudes inward.
Fig. 6-8 are schematic diagrams of the trailer tooling. The trailer tool 3 includes a towing arm 31, a mounting portion 32, and a trailer boss 33. The mounting portion 32 is preferably a box body, the opening of the box body faces the inner side of the vehicle body, the top of the trailer tool 3 is provided with a second through hole 3b, the first through hole 111a and the second through hole 3b are both kidney-shaped holes, and the extending directions of the second through hole 3b and the first through hole 111a on the cantilever rib 111 are mutually perpendicular; rib plates are arranged on five surfaces of the box body, so that the box body has good integral bearing performance; the towing arm 31 faces the outer side of the vehicle body and is provided with a towing hole 3a for binding a towing rope. A trailer boss 33 is located above the trailing arm 31 and is connected to the mounting portion 32. It should be noted that: since the attaching portion 32 functions to fix the position of the trailing arm 31, the configuration is not limited to the box structure, and may be other structures as long as the trailing arm 31 can be reliably fixed at the set position.
Fig. 9 is a schematic drawing of a trailer tooling installation. When the trailer tool 3 needs to be fixed on the body 1, the boss 33 of the trailer tool 3 is embedded between the two stopping bosses 211 of the trailer part 21 from the inner side of the body toward the outer direction (or the outer side of the body toward the inner direction), so that the two stopping bosses are in full contact without leaving a gap, and then the bolt 4 is screwed up and fixed. Ensure that trailer boss 33 and backstop boss 211 can receive the force with bolt 4 jointly, avoid trailer frock 3 to bring the damage risk for automobile body 1 cantilever muscle 111 in the moment of bending that drags the in-process and produce.
The embodiments of the present invention are described above with reference to the drawings, and the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. The present invention is not limited to the above-described embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. A rail vehicle trailer structure, comprising:
the cantilever rib (111) is positioned on the inner side of the underframe edge beam (11), and a first through hole (111 a) is formed in the cantilever rib (111);
the trailer part (21) is welded and fixed on the lower surface of the underframe edge beam (11), the trailer part (21) comprises two stopping bosses (211) arranged at intervals in the longitudinal direction, and the protruding direction of the stopping bosses (211) faces downwards; and
the trailer tool (3) comprises an installation part (32) and a traction arm (31) fixed at the lower end of the installation part (32), a trailer boss (33) is arranged on the upper surface of the traction arm (31), a traction hole (3 a) is further formed in the traction arm (31), and a second through hole (3 b) is formed in the upper end of the installation part (32);
when the trailer tool (3) is installed on the cantilever rib (111) through a bolt, the bolt penetrates through the first through hole (111 a) and the second through hole (3 b), the dragging hole (3 a) of the dragging arm (31) is located on the outer side of the underframe boundary beam (11), and the trailer boss (33) is located between the two stopping bosses (211).
2. The rail vehicle trailer structure as claimed in claim 1, wherein the rail vehicle trailer structure further comprises a vehicle lifting part (22) and a vehicle binding part (23), the vehicle lifting part (22) and the trailer part (21) are integrally formed, the vehicle lifting part (22) and the trailer part (21) are welded and fixed on the lower surface of the underframe side beam (11), and the vehicle lifting part (22) comprises a pattern surface (221) below the lower surface of the underframe side beam (11).
3. A rail vehicle trailer arrangement as claimed in claim 2, wherein the lift portion (22) and the trailer portion (21) are formed from a single piece of sheet material, the thickness of the lift portion (22) corresponding to the sum of the thicknesses of the trailer portion (21) and the stop boss (211).
4. The rail vehicle trailer structure as claimed in claim 2, wherein the car lifting part (22) further comprises a connecting part (222) located at the inner side of the underframe side beam (11), a car binding part (23) is welded and fixed between the connecting part (222) and the cantilever rib (111), and a round hole is formed in the car binding part (23).
5. A rail vehicle trailer arrangement as claimed in claim 4, wherein the lower surface of the coupling portion (222) is smooth.
6. A rail vehicle trailer arrangement as claimed in claim 1, wherein the mounting portion (32) is a box having an opening towards the inside of the undercarriage sill.
7. A rail vehicle trailer arrangement according to claim 1, wherein the abutment surface of the stop boss (211) towards the trailer boss (33) has an angle a of 70-88 ° to the longitudinal direction; the included angle between the abutting surface of the trailer boss (33) facing the stopping boss (211) and the longitudinal direction is also alpha.
8. A rail vehicle trailer arrangement according to claim 7, wherein the first through hole (111 a) and the second through hole (3 b) are each a kidney-shaped hole, the kidney-shaped hole of the first through hole (111 a) extending in a direction perpendicular to the kidney-shaped hole of the second through hole (3 b).
9. A rail vehicle towing method employing a trailer structure as claimed in any one of claims 1 to 8, comprising essentially the steps of:
1) when the vehicle needs to be towed, the towing boss (33) of the towing tool (3) is arranged between the two stopping bosses (211) of the towing part (21), the towing boss (33) and the stopping bosses (211) are tightly propped, and then the towing tool (3) is fixed on the cantilever rib (111) by using a bolt;
2) the traction rope is fixed in a dragging hole (3 a) of the trailer tool (3), and the trailer tool (3) is detached from the cantilever rib (111) after the trailer operation is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110752272.7A CN113306588B (en) | 2021-07-02 | 2021-07-02 | Rail vehicle trailer structure and trailer method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110752272.7A CN113306588B (en) | 2021-07-02 | 2021-07-02 | Rail vehicle trailer structure and trailer method |
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| Publication Number | Publication Date |
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| CN113306588A CN113306588A (en) | 2021-08-27 |
| CN113306588B true CN113306588B (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110752272.7A Active CN113306588B (en) | 2021-07-02 | 2021-07-02 | Rail vehicle trailer structure and trailer method |
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| CH458425A (en) * | 1966-06-15 | 1968-06-30 | Landeborg Lars E | Low loader railway train |
| WO2001074650A1 (en) * | 2000-04-01 | 2001-10-11 | China International Marine Containers (Group) Co. Ltd. | A semi-trailer with combinable and removable cargo container body |
| CN203600918U (en) * | 2013-11-26 | 2014-05-21 | 宿迁市苏林机械制造有限公司 | Tow bar |
| EP3192679A2 (en) * | 2016-01-14 | 2017-07-19 | Lock on Limited | A splitable trailer coupler |
| CN208544276U (en) * | 2018-06-12 | 2019-02-26 | 浦江左右工贸有限公司 | A kind of car puller hook having Anti-rope drop function |
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