CN115230770A - Novel front end opening and closing mechanism for motor train unit and motor train unit - Google Patents
Novel front end opening and closing mechanism for motor train unit and motor train unit Download PDFInfo
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- CN115230770A CN115230770A CN202210917152.2A CN202210917152A CN115230770A CN 115230770 A CN115230770 A CN 115230770A CN 202210917152 A CN202210917152 A CN 202210917152A CN 115230770 A CN115230770 A CN 115230770A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 147
- 241000271559 Dromaiidae Species 0.000 claims abstract description 10
- 230000007704 transition Effects 0.000 claims description 15
- 230000003137 locomotive effect Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 description 3
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G7/00—Details or accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/02—Construction details of vehicle bodies reducing air resistance by modifying contour ; Constructional features for fast vehicles sustaining sudden variations of atmospheric pressure, e.g. when crossing in tunnels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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Abstract
The application provides novel front end closing mechanism and EMUs for EMUs relates to track traffic technical field. The novel front end opening and closing mechanism for the motor train unit comprises a left cover plate assembly, a right cover plate assembly, an upper mechanism assembly and a lower mechanism assembly. The left cover plate assembly and the right cover plate assembly are hinged with the upper mechanism assembly; the lower mechanism assembly comprises a main bottom plate, a first driving mechanism, a second driving mechanism and a base shaft, the left cover plate assembly and the right cover plate assembly are hinged to the base shaft, the base shaft is fixed with the main bottom plate, and the first driving mechanism and the second driving mechanism respectively drive one cover plate assembly to pivot. This front end closing mechanism can reduce the unnecessary space and occupy under the condition that realizes left cover plate assembly, right cover plate assembly independent control switching respectively for the structure is simpler, thereby can avoid the device in locomotive such as coupling and anticreeper as far as possible, convenient maintenance. Simple structure also makes its adaptability better, to the EMUs of different locomotive appearances, mostly can assemble the use.
Description
Technical Field
The application relates to the technical field of rail transit, in particular to a novel front end opening and closing mechanism for a motor train unit and the motor train unit.
Background
With the continuous development of economy, rail vehicles gradually become the preferred traffic mode for daily trips of people, and on the premise, the high-speed motor car industry is rapidly developed. In order to perform a shunting operation or a rescue operation of a railway vehicle, opening and closing mechanisms are generally installed at both ends of the vehicle. Under the working conditions of shunting operation and rescue, the front-end opening and closing mechanism can be automatically opened, the automatic car coupler is stretched out to realize the connection and the hanging of the car, and the opening and closing mechanism can also be opened in a manual mode to realize the connection and the hanging. The movable cover plate can be kept closed and self-locked when the vehicle normally runs, so that good aerodynamic performance is kept, the appearance is smooth and attractive, and internal equipment is prevented from being damaged.
The existing opening and closing mechanism has a complex structure, devices such as a car coupler and an anti-creeper exist in the existing opening and closing mechanism, the requirement on maintenance operability is improved, and the design requirement on the opening and closing mechanism is continuously improved.
Disclosure of Invention
An object of this application is to provide a novel front end closing mechanism for EMUs, it can improve the complicated problem of current closing mechanism structure.
Another object of the present invention is to provide a motor train unit having all the characteristics of the above-described novel front end opening and closing mechanism for a motor train unit.
The embodiment of the application is realized as follows:
the embodiment of the application provides a novel front end closing mechanism for EMUs, include:
a left cover plate assembly;
a right cover plate assembly;
the upper part of the left cover plate assembly and the upper part of the right cover plate assembly are hinged with the upper mechanism assembly, and the upper mechanism assembly is used for being connected with a vehicle body;
the lower mechanism assembly comprises a main bottom plate, a first driving mechanism, a second driving mechanism and a base shaft, the lower part of the left cover plate assembly and the lower part of the right cover plate assembly are hinged to the base shaft, the base shaft is fixed with the main bottom plate, the main bottom plate is used for connecting the vehicle body, the first driving mechanism is arranged on the main bottom plate and used for driving the left cover plate assembly to pivot, and the second driving mechanism is arranged on the main bottom plate and used for driving the right cover plate assembly to pivot;
the left cover plate assembly and the right cover plate assembly are provided with a first position and a second position, wherein the first position and the second position are mutually abutted to seal the front end of the vehicle body, and the second position are mutually separated to open the front end of the vehicle body; when the first driving mechanism and the second driving mechanism work, the left cover plate assembly and the right cover plate assembly can switch positions between the first position and the second position.
In addition, the novel front end opening and closing mechanism for the motor train unit provided by the embodiment of the application can also have the following additional technical characteristics:
in an alternative embodiment of the present application, the first drive mechanism is structurally symmetrical to the second drive mechanism.
In the optional embodiment of this application, first actuating mechanism, second actuating mechanism all includes down rocking arm, link mechanism and drive assembly, drive assembly set up in main bottom plate, drive assembly's output pass through link mechanism with the middle part of rocking arm is articulated down, the one end of rocking arm articulates down in the base axle, first actuating mechanism down the other end of rocking arm with left side cover plate assembly is connected, second actuating mechanism down the other end of rocking arm with right side cover plate assembly is connected.
In an optional embodiment of the present application, the driving assembly includes a mounting seat, a linear driving element, a first gear, a sliding rail, a rack, and a driving frame, the mounting seat is fixed to the main bottom plate, the linear driving element is disposed on the mounting seat, the first gear is rotatably connected to the mounting seat, the sliding rail is fixed to the mounting seat, an output end of the linear driving element is connected to the rack through the driving frame, the rack is slidably disposed on the sliding rail, the first gear is configured to be capable of engaging with the rack, and a gear shaft of the first gear is connected to the link mechanism.
In an alternative embodiment of the present application, the driving assembly further includes a second gear rotatably disposed at the mounting seat, the second gear being configured to be capable of meshing with the rack, a gear shaft of the second gear passing through the mounting seat and being configured to be capable of being manually screwed.
In an optional embodiment of the present application, the link mechanism includes a driving link and a driven link, the driving assembly further includes a limiting member, the limiting member is disposed on the mounting base, the driving link is fixedly connected to a gear shaft of the first gear, one end of the driven link is hinged to the driving link, and the other end of the driven link is hinged to the middle portion of the lower rotating arm;
when the left cover plate assembly or the right cover plate assembly is located at the first position, the driving connecting rod abuts against the limiting part, and the axle center of the gear shaft of the first gear, the axle center of the hinged shaft of the driven connecting rod and the driving connecting rod and the axle center of the hinged shaft of the driven connecting rod and the lower rotating arm are collinear.
In an alternative embodiment of the present application, the driving assembly further includes a gas spring, the linkage mechanism includes a driving connecting rod, one side of the driving connecting rod has a supporting rod, one end of the gas spring is hinged to the main bottom plate, and the other end of the gas spring is hinged to the supporting rod.
In an optional embodiment of the present application, each of the first driving mechanism and the second driving mechanism includes an on-position switch and an off-position switch, the off-position switch is disposed on the main bottom plate, and the off-position switch is used for detecting the link mechanism; the opening in-place switch is arranged on the driving assembly and used for detecting the position of the output end of the driving assembly.
In an optional embodiment of the present application, each of the left cover plate assembly and the right cover plate assembly includes an upper transition bracket and a lower transition bracket, the upper transition bracket is connected to the upper mechanism assembly, and the lower transition bracket is connected to the first driving mechanism and the second driving mechanism.
The embodiment of the application provides a motor train unit, including automobile body and above-mentioned arbitrary novel front end closing mechanism for the motor train unit, novel front end closing mechanism for the motor train unit set up in the front end of automobile body just is used for opening or closing the front end of automobile body.
The beneficial effect of this application is:
the utility model provides a novel front end closing mechanism for EMUs is through being left cover plate assembly, right cover plate assembly dispose corresponding first actuating mechanism, second actuating mechanism respectively to through the mechanism assembly and the base axle of going up of sharing, can be under the condition of realizing left cover plate assembly, right cover plate assembly independent control switching respectively, reduce the unnecessary space and occupy, make the structure more simple, thereby can avoid the device in the locomotive of coupling and this type of anticreeper as far as possible, convenient maintenance. Simple structure also makes its adaptability better, to the EMUs of different locomotive appearances, mostly can assemble the use. Meanwhile, a manual mode is designed, the cover plate assembly can be directly and manually opened and closed when needed, and the structure is simple and reliable. The motor train unit using the novel front end opening and closing mechanism for the motor train unit can be maintained more conveniently.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic view of a front end opening and closing mechanism for a novel motor train unit provided by an embodiment of the application;
FIG. 2 is a top view of the lower mechanism assembly;
FIG. 3 is a perspective view of the lower mechanism assembly from one perspective;
FIG. 4 is a perspective view of the lower mechanism assembly from another perspective;
FIG. 5 is a perspective view of the drive assembly from one perspective;
FIG. 6 is a perspective view of the drive assembly from another perspective;
FIG. 7 is a cross-sectional view of the drive assembly;
FIG. 8 is a schematic view in the direction A of FIG. 7;
FIG. 9 is a schematic view of the right shroud assembly.
Icon: 100-a front end opening and closing mechanism for the novel motor train unit; 10-a left cover plate assembly; 20-a right shroud assembly; 101-upper transition support; 102-lower transition support; 30-an upper mechanism assembly; 31-a rotating arm; 32-a connecting shaft; 40-lower mechanism assembly; 41-main backplane; 42-a first drive mechanism; 43-a second drive mechanism; 44-a base shaft; 45-lower rotating arm; 46-a linkage mechanism; 461-active connecting rod; 4611-struts; 462-a driven link; 47-a drive assembly; 471-a mounting seat; 472-linear drive; 473-first gear; 474-a slide rail; 475-a rack; 476-a drive frame; 477-a second gear; 4771-a gear shaft of the second gear; 48-a stop; 49-gas spring; 51-open the go-to-go switch; 52-close the go-to-go switch.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the product conventionally places when used, and are only used for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should also be noted that, unless expressly stated or limited otherwise, the terms "disposed" and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Examples
Referring to fig. 1 to 9, an embodiment of the present application provides a novel front end opening and closing mechanism 100 for a motor train unit, including:
a left cover plate assembly 10;
a right cover plate assembly 20;
the upper mechanism assembly 30 is hinged with the upper mechanism assembly 30 at the upper part of the left cover plate assembly 10 and the upper part of the right cover plate assembly 20, and the upper mechanism assembly 30 is used for being connected with a vehicle body;
the lower mechanism assembly 40, the lower mechanism assembly 40 includes the main bottom plate 41, the first actuating mechanism 42, the second actuating mechanism 43 and the base axle 44, the lower portion of the left cover plate assembly 10, the lower portion of the right cover plate assembly 20 are hinged to the base axle 44, the base axle 44 is fixed with the main bottom plate 41, the main bottom plate 41 is used for connecting the vehicle body, the first actuating mechanism 42 is set up in the main bottom plate 41 and used for driving the left cover plate assembly 10 to pivot, the second actuating mechanism 43 is set up in the main bottom plate 41 and used for driving the right cover plate assembly 20 to pivot;
wherein, the left cover plate assembly 10 and the right cover plate assembly 20 have a first position abutting against each other to close the front end of the vehicle body and a second position separated from each other to open the front end of the vehicle body; when the first and second driving mechanisms 42 and 43 are operated, the left and right cover plate assemblies 10 and 20 can be switched between the first and second positions.
In brief, the first driving mechanism 42 and the second driving mechanism 43 can respectively drive the left cover plate assembly 10 and the right cover plate assembly 20 to be separated and combined to realize opening and closing operations, and the upper mechanism assembly 30 is used as a driven connecting structure to connect the cover plate assembly with the vehicle body. Because simple structure, the part is retrencied, and the operation is got up simply, simultaneously because two cover plate assemblies can independent switching, can conveniently maintain. And because simple structure is difficult to make mistakes, so the operation is reliable, can reduce the fault rate.
The shape of the vehicle head can be different according to different vehicle types, and the upper mechanism assembly 30 can change the length of the upper connecting shaft 32 to adapt to the corresponding vehicle head shape and facilitate the connection of cover plate assemblies with different sizes and specifications with the vehicle head; the main bottom plate 41 of the lower mechanism assembly 40 can be designed according to the installation space of the lower side of the vehicle head, and the length of the base shaft 44 can be designed in a matching way so as to adapt to the change of the size specification of the cover plate assembly.
Referring to fig. 9, fig. 9 is a schematic view of the right cover plate assembly 20, and the structure of the left cover plate assembly 10 can be recognized according to fig. 1. The left cover plate assembly 10 and the right cover plate assembly 20 of the present embodiment each include an upper transition bracket 101 and a lower transition bracket 102, the upper transition bracket 101 is connected to the upper mechanism assembly 30, and the lower transition bracket 102 is connected to the first driving mechanism 42 and the second driving mechanism 43. The upper mechanism assembly 30 has a rotating arm 31, one end of the rotating arm 31 is connected with the transition bracket, and the other end is hinged on the connecting shaft 32.
As shown in fig. 2, the first driving mechanism 42 and the second driving mechanism 43 of the present application are symmetrical in structure. The first and second drive mechanisms 42, 43 each include a lower pivot arm 45, a linkage 46, and a drive assembly 47.
Taking one of the driving mechanisms as an example, the driving assembly 47 is disposed on the main bottom plate 41, an output end of the driving assembly 47 is hinged to a middle portion of the lower rotating arm 45 through a link mechanism 46, one end of the lower rotating arm 45 is hinged to the base shaft 44, wherein the other end of the lower rotating arm 45 of the first driving mechanism 42 is connected to the left hood panel assembly 10, and the other end of the lower rotating arm 45 of the second driving mechanism 43 is connected to the right hood panel assembly 20.
Referring to fig. 5 to 8, the driving assembly 47 of the present application includes a mounting seat 471, a linear driving member 472, a first gear 473, a sliding rail 474, a rack 475 and a driving rack 476, the mounting seat 471 is fixed to the main bottom plate 41, the linear driving member 472 is disposed on the mounting seat 471, the first gear 473 is rotatably connected to the mounting seat 471, the sliding rail 474 is fixed to the mounting seat 471, an output end of the linear driving member 472 is connected to the rack 475 through the driving rack 476, the rack 475 is slidably disposed on the sliding rail 474, the first gear 473 is configured to be capable of meshing with the rack 475, and a gear shaft of the first gear 473 is connected to the link mechanism 46. The gear shaft of the first gear 473 then constitutes the output of the drive assembly 47 described above.
In the present embodiment, an air cylinder is used as the linear driving unit 472, and it is understood that a device capable of performing linear driving, such as an oil cylinder, an electric cylinder, a linear motor, etc., may be used as the linear driving unit 472.
Further, the driving assembly 47 of the present embodiment further includes a second gear 477, the second gear 477 is rotatably disposed on the mounting seat 471, the second gear 477 is configured to be capable of engaging with the rack 475, and the gear shaft 4771 of the second gear passes through the mounting seat 471 and is configured to be capable of being manually screwed. That is, as shown in fig. 6 or 8, the gear shaft 4771 of the second gear is paid out, and an operator can directly screw the gear shaft by a tool, so that the rack 475 is driven, the first gear 473 is driven, and finally the hood plate assembly is manually opened or closed, so that the cylinder is opened or manually opened according to actual conditions during maintenance and repair, and the operability is better.
In the present embodiment, the link mechanism 46 includes a driving link 461 and a driven link 462. Further, the driven link 462 of the present embodiment has only one, so that the structure is simplified and the space is saved. But should not be construed restrictively as other numbers of driving and driven links 461, 462 are not within the scope of the present application. For example, a driven link 462 may be additionally provided according to a difference in installation space to facilitate completion of transmission. Or when the mass of the cover plate assembly is large, the driving connecting rod 461 can be additionally arranged and the driving component 47 is configured, so that one cover plate assembly can have a plurality of driving points, and the reliable opening and closing are ensured.
In this embodiment, the driving assembly 47 further includes a limiting member 48, the limiting member 48 is disposed on the mounting seat 471, the driving link 461 is fixedly connected to the gear shaft of the first gear 473, one end of the driven link 462 is hinged to the driving link 461, and the other end of the driven link 462 is hinged to the middle portion of the lower arm 45;
when the left cover plate assembly 10 or the right cover plate assembly 20 is at the first position, the driving link 461 abuts against the limiting member 48, and the axle center of the gear shaft of the first gear 473, the axle center of the hinge shaft of the driven link 462 and the driving link 461, and the axle center of the hinge shaft of the driven link 462 and the lower pivot arm 45 are collinear. When the axle center of the gear shaft of the first gear 473, the axle centers of the hinge shafts of the driven link 462 and the driving link 461, and the axle centers of the hinge shafts of the driven link 462 and the lower lever 45 are collinear, the driven link 462 reaches a dead point position relative to the driving link 461 to complete the locking of the link mechanism 46, and the stopper 48 can provide support at the side of the driving link 461 to ensure stable self-locking. That is, the linkage 46 may achieve self-locking of the hood assembly after closing without additional locking mechanisms. Taking the view of fig. 2 as an example, if the left cover plate assembly 10 directly receives an external force rotating towards the opening direction, the driven link 462 needs to drive the driving link 461 to rotate clockwise to open the left cover plate assembly 10, and the limiting member 48 limits the driving link 461, so that this action cannot be realized. So that the left cover plate assembly 10 does not open when it is acted by the outside of the vehicle head. The left hood panel assembly 10 can be successfully opened by the driving force inside the head only when the driving link 461 rotates counterclockwise and drives the driven link 462 to move clockwise.
The driving assembly 47 further includes a gas spring 49, one side of the driving link 461 has a support 4611, one end of the gas spring 49 is hinged to the main base plate 41, and the other end of the gas spring 49 is hinged to the support 4611. The gas spring 49 can buffer the acting force of the driving link 461, so as to prevent the condition of the cover plate assembly from changing suddenly and influencing the service life of the whole structure.
Further, the first driving mechanism 42 and the second driving mechanism 43 of the present embodiment each include an on-position switch 51 and an off-position switch 52, the off-position switch 52 is disposed on the main base plate 41, and the off-position switch 52 is used for detecting the link mechanism 46; an open-to-position switch 51 is provided on the drive assembly 47, and the open-to-position switch 51 is used to detect the position of the output of the drive assembly 47. Specifically, the off-position switch 52 is located near the stop 48 and when the linkage is moved to position and detected, the cylinder does not continue to retract. Conversely, when the open-position switch 51 detects the piston rod of the cylinder, it indicates that the cover plate assembly has been opened in position and the cylinder does not continue to extend beyond the piston rod.
The embodiment of the application provides a motor train unit, including automobile body and foretell novel front end closing mechanism 100 for the motor train unit, novel front end closing mechanism 100 for the motor train unit sets up in the front end of automobile body and is used for opening or closing the front end of automobile body. The structure of the train body can refer to the structure of the train body of the motor train unit in the prior art, and is not described herein again.
Taking the left cover plate assembly 10 as an example, when the cylinder extends, the rack 475 moves to rotate the driving link 461 counterclockwise, and the driven link 462 drives the left lower rotating arm 45 to rotate counterclockwise, so as to drive the left cover plate assembly 10 to rotate around the base shaft 44, thereby achieving opening. When the valve needs to be closed, the piston rod of the air cylinder retracts. Through the detection of the in-place switch and the combination of a control system, automatic opening and closing can be realized. The control system can be an electric box of the motor train unit, a control end in a cab cabin, a controller specially arranged in a locomotive, or a ground control center for control. The control modes are various, and the cover plate assembly can be automatically opened and closed conveniently.
The utility model provides a novel front end closing mechanism 100 for EMUs is through for left cover plate assembly 10, right cover plate assembly 20 disposes corresponding first actuating mechanism 42 respectively, second actuating mechanism 43, and through the shared last mechanism assembly 30 and base axle 44, can realize left cover plate assembly 10, right cover plate assembly 20 is under the condition of independent control switching respectively, reduce unnecessary space and occupy, make the structure more simple, thereby can avoid the device in this kind of locomotive of coupling and anticreeper as far as possible, convenient maintenance. Simple structure also makes its adaptability better, to the EMUs of different locomotive appearances, mostly can assemble the use. Meanwhile, a manual mode is designed, the cover plate assembly can be directly and manually opened and closed when needed, and the structure is simple and reliable. The motor train unit using the novel front end opening and closing mechanism 100 for the motor train unit can be maintained more conveniently.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a novel front end closing mechanism (100) for EMUs which characterized in that includes:
a left cover plate assembly (10);
a right shroud assembly (20);
the upper mechanism assembly (30) is hinged to the upper mechanism assembly (30) at the upper part of the left cover plate assembly (10) and the upper part of the right cover plate assembly (20), and the upper mechanism assembly (30) is used for being connected with a vehicle body;
the lower mechanism assembly (40) comprises a main bottom plate (41), a first driving mechanism (42), a second driving mechanism (43) and a base shaft (44), the lower portion of the left cover plate assembly (10) and the lower portion of the right cover plate assembly (20) are hinged to the base shaft (44), the base shaft (44) is fixed with the main bottom plate (41), the main bottom plate (41) is used for connecting the vehicle body, the first driving mechanism (42) is arranged on the main bottom plate (41) and used for driving the left cover plate assembly (10) to pivot, and the second driving mechanism (43) is arranged on the main bottom plate (41) and used for driving the right cover plate assembly (20) to pivot;
wherein the left cover plate assembly (10) and the right cover plate assembly (20) have a first position abutting against each other to close the front end of the vehicle body and a second position separated from each other to open the front end of the vehicle body; when the first driving mechanism (42) and the second driving mechanism (43) work, the left cover plate assembly (10) and the right cover plate assembly (20) can switch positions between the first position and the second position.
2. The novel front end opening and closing mechanism (100) for motor train units according to claim 1, wherein the first driving mechanism (42) and the second driving mechanism (43) are structurally symmetrical.
3. The novel front end opening and closing mechanism (100) for the motor train unit according to claim 2, wherein each of the first driving mechanism (42) and the second driving mechanism (43) comprises a lower rotating arm (45), a link mechanism (46) and a driving component (47), the driving component (47) is arranged on the main bottom plate (41), an output end of the driving component (47) is hinged to the middle of the lower rotating arm (45) through the link mechanism (46), one end of the lower rotating arm (45) is hinged to the base shaft (44), the other end of the lower rotating arm (45) of the first driving mechanism (42) is connected with the left cover plate assembly (10), and the other end of the lower rotating arm (45) of the second driving mechanism (43) is connected with the right cover plate assembly (20).
4. The novel front end opening and closing mechanism (100) for the motor train unit as claimed in claim 3, wherein the driving assembly (47) comprises a mounting seat (471), a linear driving member (472), a first gear (473), a sliding rail (474), a rack (475) and a driving frame (476), the mounting seat (471) is fixed on the main bottom plate (41), the linear driving member (472) is arranged on the mounting seat (471), the first gear (473) is rotatably connected to the mounting seat (471), the sliding rail (474) is fixed on the mounting seat (471), an output end of the linear driving member (472) is connected with the rack (475) through the driving frame (476), the rack (475) is slidably arranged on the sliding rail (474), the first gear (473) is configured to be capable of meshing with the rack (475), and a gear shaft of the first gear (473) is connected with the connecting rod mechanism (46).
5. The novel front end opening and closing mechanism (100) for the motor train unit as claimed in claim 4, wherein the driving assembly (47) further comprises a second gear (477), the second gear (477) is rotatably disposed on the mounting seat (471), the second gear (477) is configured to be capable of being meshed with the rack (475), and a gear shaft (4771) of the second gear penetrates through the mounting seat (471) and is configured to be capable of being manually screwed.
6. The novel front end opening and closing mechanism (100) for the motor train unit as claimed in claim 4, wherein the link mechanism (46) comprises a driving link (461) and a driven link (462), the driving assembly (47) further comprises a limiting member (48), the limiting member (48) is arranged on the mounting seat (471), the driving link (461) is fixedly connected with a gear shaft of the first gear (473), one end of the driven link (462) is hinged to the driving link (461), and the other end of the driven link (462) is hinged to the middle part of the lower rotating arm (45);
when the left cover plate assembly (10) or the right cover plate assembly (20) is located at the first position, the driving connecting rod (461) abuts against the limiting piece (48), and the axle center of the gear shaft of the first gear (473), the axle center of the hinge shaft of the driven connecting rod (462) and the driving connecting rod (461), and the axle center of the hinge shaft of the driven connecting rod (462) and the lower rotating arm (45) are collinear.
7. The novel front end opening and closing mechanism (100) for the motor train unit as claimed in claim 4, wherein the driving assembly (47) further comprises a gas spring (49), the linkage mechanism (46) comprises a driving connecting rod (461), a supporting rod (4611) is arranged on one side of the driving connecting rod (461), one end of the gas spring (49) is hinged to the main bottom plate (41), and the other end of the gas spring (49) is hinged to the supporting rod (4611).
8. The novel front end opening and closing mechanism (100) for the motor train unit as claimed in claim 3, wherein the first driving mechanism (42) and the second driving mechanism (43) each comprise an open-to-position switch (51) and a close-to-position switch (52), the close-to-position switch (52) is arranged on the main bottom plate (41), and the close-to-position switch (52) is used for detecting the link mechanism (46); the open-to-position switch (51) is arranged on the driving assembly (47), and the open-to-position switch (51) is used for detecting the position of the output end of the driving assembly (47).
9. The novel front end opening and closing mechanism (100) for the motor train unit according to claim 1, wherein the left cover plate assembly (10) and the right cover plate assembly (20) each comprise an upper transition support (101) and a lower transition support (102), the upper transition support (101) is connected with the upper mechanism assembly (30), and the lower transition support (102) is connected with the first driving mechanism (42) and the second driving mechanism (43).
10. Motor train unit, characterized in that it comprises a train body and a novel front end opening and closing mechanism (100) according to any one of claims 1 to 9, said novel front end opening and closing mechanism (100) being arranged at the front end of the train body and being used to open or close the front end of the train body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210917152.2A CN115230770B (en) | 2022-08-01 | 2022-08-01 | Novel front end opening and closing mechanism for motor train unit and motor train unit |
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| CN202210917152.2A CN115230770B (en) | 2022-08-01 | 2022-08-01 | Novel front end opening and closing mechanism for motor train unit and motor train unit |
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| CN115230770B CN115230770B (en) | 2023-12-05 |
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| Publication number | Publication date |
|---|---|
| CN115230770B (en) | 2023-12-05 |
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