CN114771589B - Through-channel roof and rail vehicle - Google Patents
Through-channel roof and rail vehicle Download PDFInfo
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- CN114771589B CN114771589B CN202210382784.3A CN202210382784A CN114771589B CN 114771589 B CN114771589 B CN 114771589B CN 202210382784 A CN202210382784 A CN 202210382784A CN 114771589 B CN114771589 B CN 114771589B
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- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 210000001503 joint Anatomy 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 238000012423 maintenance Methods 0.000 abstract description 7
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 230000002159 abnormal effect Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010030 laminating Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 240000004282 Grewia occidentalis Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
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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
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/20—Communication passages between coaches; Adaptation of coach ends therefor
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Abstract
The invention provides a through-channel roof and a railway vehicle, which comprises: the middle roof, be located the limit roof of middle roof both sides and two boundary beams of being connected with the roof mount pad, two the boundary beams respectively with two limit roof is connected, two be connected with the elastic support mechanism that two sets of intervals set up between the boundary beams, elastic support mechanism's middle part with middle roof is connected for supporting middle roof. The through channel top plate provided by the invention adopts the elastic supporting mechanism to realize various movements, has a simple structure, greatly reduces the number of parts, reduces the manufacturing and maintenance cost, and improves the reliability of products; meanwhile, the elastic supporting mechanism has a certain buffering effect, so that the middle top plate moves more smoothly.
Description
Technical Field
The invention belongs to the technical field of rail transit through channels, and particularly relates to a through channel roof and a rail vehicle.
Background
The urban rail vehicle through passage is an important component for realizing connection and through between two trolleys, wherein the roof device is an important component of the through passage, and the single through passage roof device has two selected structural schemes, namely three-piece type and two-piece type, and is selected according to the requirements of customers. In the prior art, in the top plate device with the three-piece lap joint structure, the middle top plate is connected through at least two sets of diamond-shaped connecting rod mechanisms, so that various movements are realized, more parts of the connecting rod mechanisms exist, abnormal sound hidden dangers exist, friction sleeves are needed at each rotating shaft, periodic replacement is needed, and the maintenance cost is high; and adopt independent hinge to realize the connection of limit roof and roof boundary beam, also have spare part more, problem such as with high costs. When the roof device is assembled, the pin holes on the four-corner section frame end installation blocks are connected with the vehicle body installation seat through the pin posts and the cotter pins, so that the quick connecting and disconnecting function cannot be realized, the assembly and disassembly are inconvenient, and the time and the labor are wasted.
Disclosure of Invention
The invention aims at the technical problems and provides a through-channel roof and a railway vehicle. The through channel top plate adopts the elastic supporting mechanism to realize various movements, has simple structure, greatly reduces the number of parts, reduces the manufacturing and maintenance cost and improves the reliability of products; meanwhile, the elastic supporting mechanism has a certain buffering effect, so that the middle top plate moves more smoothly.
In order to achieve the above object, the present invention provides a through channel roof comprising: the middle roof, be located the limit roof of middle roof both sides and two boundary beams of being connected with the roof mount pad, two the boundary beams respectively with two limit roof is connected, two be connected with the elastic support mechanism that two sets of intervals set up between the boundary beams, elastic support mechanism's middle part with middle roof is connected for supporting middle roof.
According to the technical scheme, at least two sets of diamond-shaped connecting rod mechanisms with complex structures in the prior art are replaced by two sets of elastic supporting mechanisms, so that the number of parts is greatly reduced, the failure rate is reduced, the manufacturing and maintenance cost is reduced, and the manufacturing efficiency and reliability of the through-channel top plate are improved on the basis of guaranteeing the motion function of each plane working condition of the middle top plate; and the wearing parts that current link mechanism needs periodic replacement are more, and elastic support mechanism has reduced the possibility that appears abnormal sound.
In some of these embodiments, the elastic support mechanism comprises:
the fixed block is arranged on the central line of the middle top plate;
the two tension springs are symmetrically arranged on two sides of the fixed block, one end of each tension spring is connected with the fixed block, the other end of each tension spring is correspondingly connected to the boundary beam, and the connection point of each tension spring and the fixed block is lower than the connection point of each tension spring and the boundary beam.
In this technical scheme, realize each plane operating mode motion function of middle backplate through this elastic support mechanism, improved the manufacturing efficiency and the reliability of link through way roof, and the extension spring has certain cushioning effect for the motion of middle roof is smoother. The tension spring is obliquely installed and is normally connected and hung down, the tension spring is in a certain stretching state, and the vertical component force can achieve vertical lifting of the middle top plate and plays a role in supporting the middle top plate. In some embodiments, the elastic supporting mechanism further includes a spring, the middle of the spring is connected to the middle top plate, two ends of the spring extend to the two side top plates, and a wearing strip is disposed at the bottom of the spring, and part of the wearing strip is abutted to the side top plates. When the curve is small, the problem of insufficient lifting force possibly occurring on one side of compression is solved, the problem of flash seam between the middle top plate and the side top plate is guaranteed not to occur through the auxiliary abrasion strip of the elastic sheet, the requirement of movement function is met, meanwhile, the manufacturing cost is reduced, and the reliability of products is improved.
In some embodiments, the middle top plate is provided with a sliding groove, the sliding groove extends along the length direction of the middle top plate, a sliding block is fixedly arranged at the bottom of the fixed block, and the sliding block is fixedly assembled in the sliding groove in a sliding manner, so that the elastic supporting mechanism is convenient to install.
In some embodiments, the sliding groove is provided with an opening matched with the width of the elastic sheet, the elastic sheet is arranged on the opening, and two sides of the elastic sheet are detachably connected to the sliding block through a first fastening piece.
In some embodiments, the two ends of the sliding block are detachably connected to the bottom wall of the sliding groove through the second fastening piece, and the structure improves the connection safety and reliability of the middle top plate.
In some of these embodiments, the elastic support mechanism comprises:
the middle part of the pull rod is connected to the central line of the middle top plate through a first hinge, and the two ends of the pull rod are provided with first limiting parts;
the two sleeves are hollow in the sleeve and are provided with an opening at one end, the two sleeves are respectively sleeved on the outer sides of two ends of the pull rod, the pull rod is in sliding connection with the two sleeves, a second limiting piece is arranged on the inner wall of each sleeve, the second limiting piece is matched with the first limiting piece to limit the relative sliding range of the pull rod and each sleeve, and the other end of each sleeve is correspondingly connected to the boundary beam through a joint bearing;
the two elastic elements are respectively sleeved on the pull rods at two sides of the first hinge, a third limiting part is arranged on the periphery of the sleeve, and two ends of each elastic element are respectively abutted to the first hinge and the third limiting part.
The elastic supporting mechanism in the technical scheme can realize the curve motion function of each working condition of the whole mechanism, wherein the pull rod and the sleeve realize the guiding supporting function, and the elastic element provides elastic force, so that the position of the middle top plate is ensured; the elastic element has a certain buffering effect, so that the movement of the middle top plate is smoother, the elastic supporting mechanism is connected with the side beam through the joint bearing and connected with the middle top plate through the first hinge, the structure is simple, the movement following performance of the middle top plate is guaranteed, and then the curve movement function of each working condition is realized.
In some embodiments, the boundary beam with the boundary roof passes through second hinge connection, second hinge department is provided with at least one torsional spring, the torsional spring cover is located in the second pivot of second hinge, and its one end with the top surface butt of boundary roof, the other end with the inboard butt of boundary beam, through setting up the torsional spring for the boundary roof is closely with middle roof laminating under the elasticity effect of torsional spring, avoids appearing the problem of laminating inadequately and vibration abnormal sound under the motion operating mode.
In some embodiments, the first hinge comprises a first connecting piece, a second connecting piece and a first rotating shaft, wherein the first connecting piece is sleeved on the outer side of the middle part of the pull rod, and the second connecting piece is connected with the middle top plate; the first connecting piece is provided with first rotating part, set up the second rotating part on the second connecting piece, first rotating part and second rotating part cooperate and form and are used for holding the rotating part of first pivot, set up through first hinge and ensure the motion following nature of middle roof.
In some embodiments, the middle top plate is provided with a sliding groove, the sliding groove extends along the length direction of the middle top plate, a sliding block is fixedly arranged at the bottom of the second connecting piece, and the sliding block is fixedly assembled in the sliding groove in a sliding manner, so that the elastic supporting mechanism is convenient to install.
In some embodiments, the edge beam end is provided with a convex strip, a first clamping portion is arranged on the convex strip, a groove for accommodating the convex strip is arranged on the top plate mounting seat, a second clamping portion is arranged in the groove, the convex strip is clamped in the groove by matching the first clamping portion with the second clamping portion, and when the edge beam is mounted, the edge beam is pushed into the top plate mounting seat, and the first clamping portion and the second clamping portion are matched with each other to have a transverse limiting function.
In some embodiments, a first bar-shaped groove and a second bar-shaped groove are respectively arranged on two opposite side walls of the groove, a notch is arranged at one end side of the first bar-shaped groove, a stop piece is rotationally connected with one end of the second bar-shaped groove opposite to the notch, an elastic piece is arranged at one side of the stop piece, one end of the elastic piece is fixedly arranged at the rotating connection end of the stop piece, and the free end of the stop piece is rotationally clamped in the second bar-shaped groove and the notch in a matched mode.
According to the technical scheme, the boundary beam is pushed onto the top plate mounting seat, the first clamping part and the second clamping part are matched to enable the convex strips to be clamped in the grooves, and at the moment, the stop piece and the elastic piece are located in the second strip-shaped groove. The stopper is locked by pulling the stopper back to clamp the stopper together with the elastic piece into the notch. When the elastic piece is pressed to be pulled into the second strip-shaped groove together with the stop piece during the unbinding, the boundary beam, namely the through channel top plate, can be taken out, and the connection is convenient and quick and safe and reliable.
In some embodiments, the second hinge comprises a second rotating shaft of the rotating shaft sleeve, the rotating shaft sleeve is directly extruded by the side beams and the section bars of the side top plate, the assembly is rapid, and the overall strength of the side top plate is improved.
The invention also provides a railway vehicle, which comprises a vehicle body and the through-channel roof according to any one of the technical schemes, wherein the through-channel roof is connected with the vehicle body through a roof mounting seat, and the installation and the disassembly of the through-channel roof are more convenient and faster.
Other features and advantages of the present invention will become apparent upon review of the detailed description of the invention in conjunction with the drawings.
Drawings
FIG. 1 is a schematic view of a top plate of a through-channel in embodiment 1 of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a schematic diagram illustrating a connection state between a roof mount and a side rail in embodiment 1 of the present invention;
FIG. 4 is an exploded view of the roof mount and side rail of embodiment 1;
FIG. 5 is a schematic view of the structure of a through-channel ceiling in embodiment 2 of the present invention;
FIG. 6 is a schematic view showing the structure of a top plate of a through-channel in embodiment 3 of the present invention;
fig. 7 is a cross-sectional view of the through-channel ceiling at the center axis of the elastic supporting mechanism in embodiment 3 of the present invention.
Wherein: a through-channel top plate 100; a middle top plate 1; a chute 11; a side roof 2; a side beam 3; a convex strip 31; the first clamping part 311; an elastic support mechanism 4; a fixed block 41; a slider 411; a second fastener 4111; a tension spring 42; a connection plate 421; a spring piece 43; a first fastener 431; a wear strip 44; a pull rod 45; a first stopper 451; a sleeve 46; a second spacing member 461; a third stop 462; an elastic member 47; a first hinge 48; a first connector 481; a second connector 482; a first rotating shaft 483; a knuckle bearing 49; a top plate mounting base 5; a groove 51; a second engaging portion 511; a first bar-shaped groove 512; notch 5121; a second bar-shaped groove 513; a stopper 52; an elastic sheet 53; a second hinge 6; a swivel sleeve 61; a second rotating shaft 62; and a torsion spring 7.
Detailed Description
The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", or a third "may explicitly or implicitly include one or more such feature.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
Referring to fig. 1 to 4, in an exemplary embodiment of a through-channel roof 100 according to the present invention, the through-channel roof 100 includes a middle roof 1, side roof plates 2 located at both sides of the middle roof 1, and two side beams 3 connected to roof mounting bases 5, the two side beams 3 are respectively connected to the two side roof plates 2, two sets of elastic supporting mechanisms 4 disposed at intervals are connected between the two side beams 3, and a middle portion of the elastic supporting mechanism 4 is connected to the middle roof 1 to support the middle roof 1. Preferably, a felt is arranged between the middle top plate 1 and the side top plates 2, so that abnormal sound at the friction contact position is avoided.
In the embodiment, two groups of elastic supporting mechanisms 4 replace at least two sets of diamond-shaped connecting rod mechanisms with complex structures in the prior art, so that the number of parts is greatly reduced and the failure rate is reduced on the basis of guaranteeing the motion function of each plane working condition of the middle top plate 1, thereby reducing the manufacturing and maintenance cost, improving the manufacturing efficiency and reliability of the through-channel top plate 100 and improving the portability of the whole top plate; and the existing link mechanism needs more wearing parts to be replaced regularly, and the possibility of abnormal sound is reduced by the elastic supporting mechanism 4.
Specifically, referring to fig. 2, the elastic support mechanism 4 includes a fixed block 41, two tension springs 42, and a spring piece 43. The fixed block 41 is arranged on the central line of the middle top plate 1; two tension springs 42 are symmetrically arranged on two sides of the fixed block 41, one end of each tension spring 42 is connected with the fixed block 41, the other end of each tension spring 42 is correspondingly connected to the side beam 3, and the connection point of the tension spring 42 and the fixed block 41 is lower than the connection point of the tension spring 42 and the side beam 3; the middle part of the elastic sheet 43 is connected with the middle top plate 1, two ends of the elastic sheet 43 extend to the two side top plates 2, the bottom of the elastic sheet is provided with a wearing strip 44, and part of the wearing strip 44 is abutted with the side top plates 2. The wearing strip 44 cooperates with the elastic sheet 43 to avoid the gap between the middle top plate 1 and the side top plate 2. In this embodiment, the fixing block 41 is preferably in a T-shaped structure, the side beam 3 is fixedly provided with a connecting plate 421, and the other end of the tension spring 42 is connected with the connecting plate 421.
More specifically, the middle top plate 1 is provided with a chute 11, the chute 11 extends along the length direction of the middle top plate 1, the bottom of the fixed block 41 is fixedly provided with a sliding block 411, and the sliding block 411 is slidably assembled and fixed in the chute 11, so that the fixed block 41 and the middle top plate 1 are conveniently installed; the two ends of the sliding block 411 are detachably connected to the bottom wall of the chute 11 through the second fastening piece 4111, so that the connection safety and reliability of the middle top plate 1 are further improved, the middle top plate 1 is free from detachment risk, and the safety is high. Further, an opening matching the width of the elastic piece 43 is provided on the chute 11, the elastic piece 43 is disposed on the opening, and two sides of the elastic piece are detachably connected to the sliding block 411 through the first fastening piece 431. In this embodiment, the elastic sheet 43 is disposed on the opening to limit the sliding direction of the sliding block 411. The elastic supporting mechanism 4 is symmetrically arranged along the center line of the middle top plate 1, and the first fastening member 431 and the second fastening member 4111 are preferably fastening screws, and the fixing block 41 is integrally arranged with the slider 411.
Compared with the link mechanism in the prior art, the elastic supporting mechanism 4 in the embodiment has the advantages of simple structure, fewer parts, reduced possibility of abnormal sound and reduced manufacturing and maintenance cost. Specifically, in the prior art, at least two sets of link mechanisms are needed, and the number of parts (including standard parts, friction sleeves and the like) of each set of link mechanism is nearly hundred. The number of parts in the elastic supporting mechanism 4 in the application is only about 10, so that the number of parts is greatly reduced.
Specifically, the tension spring 42 is installed in an inclined mode and is normally connected and hung down, the tension spring 42 is in a certain stretching state, vertical component force can achieve vertical lifting of the middle top plate 1, when a curve is small, the problem that lifting force is insufficient possibly occurs on one side of compression is solved, the problem that a flash seam does not occur between the middle top plate 1 and the side top plate 2 is guaranteed through the elastic sheet 43, the requirement of a sport function is met, meanwhile, manufacturing cost is reduced, and reliability of a product is improved. The elastic supporting mechanism 4 under the structure ensures that the motion following performance of the middle top plate 1 is better, and the tension spring 42 has a certain buffer effect, so that the motion of the middle top plate 1 is smoother, and when the limit displacement curve changes such as stretching, compression, side rolling, nodding, head lifting and the like occur between two carriages, the better motion compensation is realized.
Further, in this embodiment, the side beam 3 is connected to the side top plate 2 through the second hinge 6, the second hinge 6 includes a pivot sleeve 61 and a second pivot 62, and the pivot sleeve 61 is directly extruded from the profile of the side beam 3 and the side top plate 2. During installation, the second rotating shaft 62 is directly installed in the rotating shaft sleeve 61, and the second rotating shaft is fixed on two sides through the set screws, so that compared with the traditional independent hinge connection, the connection mode of the side top plate 2 and the side beam 3 is optimized, the number of parts is reduced, the manufacturing efficiency is improved, the manufacturing cost is reduced, the assembly is rapid, and the integral strength of the side top plate 2 is improved.
Referring to fig. 3 and 4, in order to improve the convenience of mounting and dismounting the entire through-channel roof 100, the side sill 3 and the roof mount 5 are designed. Specifically, in this embodiment, the end portion of the side beam 3 is provided with the protruding strip 31, the protruding strip 31 is provided with the first clamping portion 311, the top plate mounting seat 5 is provided with the groove 51 for accommodating the protruding strip 31, the groove 51 is provided with the second clamping portion 511, the protruding strip 31 is clamped in the groove 51 by the cooperation of the first clamping portion 311 and the second clamping portion 511, and during mounting, the side beam 3 is pushed into the top plate mounting seat 5, and the first clamping portion 311 and the second clamping portion 511 cooperate to have a transverse limiting function. In this embodiment, the first clamping portion 311 is preferably a clamping groove, the second clamping portion 511 is preferably a positioning column matched with the clamping groove, and the positioning column is clamped with the clamping groove, so that the protruding strip 31 is clamped in the groove 51, that is, the side beam 3 is clamped in the top plate mounting seat 5. Further, a first bar-shaped groove 512 and a second bar-shaped groove 513 are respectively arranged on two opposite side walls of the groove 51, a notch 5121 is arranged at one end side of the first bar-shaped groove 512, a stop piece 52 is rotatably connected to one end of the second bar-shaped groove 513 opposite to the notch 5121, an elastic piece 53 is arranged at one side of the stop piece 52, one end of the elastic piece 53 is fixedly arranged at a rotating connection end of the stop piece 52, and the free end of the stop piece 52 is rotatably clamped in the second bar-shaped groove 513 and the notch 5121 in a matched mode with the elastic piece 53.
In this embodiment, the first clamping portion 311 is matched with the second clamping portion 511, and the stopper 52 is matched with the groove 51, so that the side beam 3 and the top plate mounting seat 5 are locked, and the convenience of mounting and dismounting is improved. Specifically, during installation, the side beam 3 is pushed onto the top plate mounting seat 5, and the first clamping portion 311 and the second clamping portion 511 cooperate to enable the convex strip 31 to be clamped in the groove 51, at this time, under the elastic force of the elastic piece 53, the stop piece 52 and the elastic piece 53 are clamped in the second strip-shaped groove 513. The stopper 52 is locked by pulling the stopper 52 back to lock the stopper 52 together with the elastic piece 53 into the notch 5121, thereby completing the installation of the through-channel top plate 100. When the elastic piece 53 is pressed to be pulled into the second strip-shaped groove 513 together with the stop piece 52 during the unbinding, and then the edge beam 3 is taken out, so that the structure improves the efficiency of the unbinding and unbinding, and the operation is convenient and simple.
Example 2
As shown in fig. 5, the difference between the embodiment and the through-channel top plate 100 in embodiment 1 is that, by providing at least one torsion spring at the second hinge 6 to replace the elastic sheet in the elastic supporting mechanism 4, the other corresponding structures are the same, and the other same structures are not described herein.
Specifically, referring to fig. 5, the elastic support mechanism 4 includes a fixed block 41, two tension springs 42. The fixed block 41 is arranged on the central line of the middle top plate 1; two tension springs 42 are symmetrically arranged on two sides of the fixed block 41, one end of each tension spring 42 is connected with the fixed block 41, the other end of each tension spring 42 is correspondingly connected to the side beam 3, and the connection point of the tension spring 42 and the fixed block 41 is lower than the connection point of the tension spring 42 and the side beam 3; the second hinge 6 is provided with at least one torsion spring 7, the torsion spring 7 is sleeved on a second rotating shaft 62 of the second hinge 6, one end of the torsion spring 7 is abutted with the top surface of the side top plate 2, and the other end of the torsion spring is abutted with the inner side of the side beam 3. In this embodiment, two torsion springs 7 are preferably provided at each second hinge 6. The side top plate 2 and the middle top plate 1 are tightly attached under the elastic action of the torsion spring 7 by the torsion spring 7, so that the problem that gaps and abnormal vibration are generated due to the fact that the attachment under the movement working condition is not real is avoided.
Example 3
As shown in fig. 6 and 7, the difference between the embodiment and the through-channel top plate 100 in embodiment 2 is that the structure of the elastic supporting mechanism 4 is different, and the other structures are the same in correspondence, and the other same structures are not described here again.
Specifically, referring to fig. 7, in the present embodiment, the elastic support mechanism 4 includes a tie rod 45, two sleeves 46, and two elastic members 47. The middle part of the pull rod 45 is connected to the central line of the middle top plate 1 through a first hinge 48, and the two ends of the pull rod 45 are provided with first limiting parts 451; the inside of the sleeve 46 is hollow, one end of the sleeve 46 is open, the two sleeves 46 are respectively sleeved on the outer sides of two ends of the pull rod 45, the pull rod 45 is in sliding connection with the two sleeves 46, a second limiting piece 461 is arranged on the inner wall of each sleeve 46, the second limiting piece 461 is matched with the first limiting piece 451 to limit the relative sliding range of the pull rod 45 and each sleeve 46, and the other end of each sleeve 46 is correspondingly connected to the boundary beam 3 through a joint bearing 49; the two elastic elements 47 are respectively sleeved on the pull rods 45 at two sides of the first hinge 48, a third limiting piece 462 is arranged on the periphery of the sleeve 46, and two ends of the elastic elements 47 are respectively abutted with the first hinge 48 and the third limiting piece 462. In this embodiment, the elastic element 47 is preferably a spring.
More specifically, in the present embodiment, the first hinge 48 includes a first connecting member 481, a second connecting member 482 and a first rotating shaft 483, the first connecting member 481 is sleeved outside the middle of the pull rod 45, and the second connecting member 482 is connected to the middle top plate 1; the first connection member 481 is provided with a first rotating portion, the second connection member 482 is provided with a second rotating portion, and the first rotating portion and the second rotating portion cooperate to form a rotating portion for accommodating the first rotation shaft 483, and the movement following property of the intermediate top plate 1 is ensured by the arrangement of the first hinge 48.
Further, referring to fig. 6, the middle top plate 1 is provided with a sliding groove 11, the sliding groove 11 extends along the length direction of the middle top plate 1, a sliding block 411 is fixedly arranged at the bottom of the second connecting piece 482, and the sliding block 411 is slidably assembled and fixed in the sliding groove 11, so that the elastic supporting mechanism 4 is convenient to install. The two ends of the sliding block 411 are detachably connected to the bottom wall of the chute 11 through fastening screws, so that the connection safety and reliability of the middle top plate 1 are further improved, and the detachment risk of the middle top plate 1 is avoided. In this embodiment, the first connector 481 is integrally provided with the slider 411.
The elastic supporting mechanism 4 in the embodiment can realize the curve motion function of each working condition of the whole mechanism, wherein the pull rod 45 and the sleeve 46 realize the guiding supporting function, the elastic element 47 provides elastic force, and the position of the middle top plate 1 is ensured; the elastic element 47 has a certain buffering effect, so that the movement of the middle top plate 1 is smoother, and the elastic supporting mechanism 4 is connected with the side beam 3 through the joint bearing 49 and connected with the middle top plate 1 through the first hinge 48, so that the structure is simple, the movement following performance of the middle top plate 1 is ensured, and the curve movement function of each working condition is realized. Preferably, at least one torsion spring 7 is arranged at the second hinge 6, the torsion spring 7 is sleeved on the second rotating shaft 62 of the second hinge 6, one end of the torsion spring 7 is abutted with the top surface of the side top plate 2, and the other end of the torsion spring is abutted with the inner side of the side beam 3. The side top plate 2 and the middle top plate 1 are tightly attached under the elastic action of the torsion spring 7 by the torsion spring 7, so that the problem that gaps and abnormal vibration are generated due to the fact that the attachment under the movement working condition is not real is avoided.
Compared with the existing link mechanism, the elastic supporting mechanism 4 provided by the embodiment greatly reduces the number of parts, reduces manufacturing and maintenance costs and improves the reliability of the through-channel top plate 100 on the basis of realizing the curve motion function of each working condition.
The invention also provides a railway vehicle, which comprises a vehicle body and the through-channel roof 100 according to any one of the technical schemes, wherein the through-channel roof 100 is connected with the vehicle body through the roof mounting seat 5, and the installation and the disassembly of the railway vehicle are more convenient and faster.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.
Claims (5)
1. A through-channel ceiling, comprising: the middle top plate, the side top plates positioned on two sides of the middle top plate and two side beams connected with the top plate mounting seats, wherein the two side beams are respectively connected with the two side top plates, two elastic supporting mechanisms arranged at intervals are connected between the two side beams, and the middle part of each elastic supporting mechanism is connected with the middle top plate and used for supporting the middle top plate;
the elastic support mechanism includes:
the fixed block is arranged on the central line of the middle top plate;
the two tension springs are symmetrically arranged on two sides of the fixed block, one end of each tension spring is connected with the fixed block, the other end of each tension spring is correspondingly connected to the boundary beam, and the connection point of each tension spring and the fixed block is lower than the connection point of each tension spring and the boundary beam;
the middle part of the elastic piece is connected with the middle top plate, two ends of the elastic piece extend to the two side top plates, the bottom of the elastic piece is provided with a wearing strip, and part of the wearing strip is in butt joint with the side top plates; or,
the side beam is connected with the side top plate through a second hinge, at least one torsion spring is arranged at the second hinge, the torsion spring is sleeved on a second rotating shaft of the second hinge, one end of the torsion spring is abutted to the top surface of the side top plate, and the other end of the torsion spring is abutted to the inner side of the side beam.
2. The through-channel roof according to claim 1, wherein the intermediate roof is provided with a chute extending in the longitudinal direction of the intermediate roof, and a slider is fixedly provided at the bottom of the fixing block, and the slider is slidably fitted and fixed in the chute.
3. The through-channel roof according to claim 1, wherein the side beam end portion is provided with a protruding strip, the protruding strip is provided with a first clamping portion, the roof mount is provided with a groove for accommodating the protruding strip, a second clamping portion is provided in the groove, and the protruding strip is clamped in the groove by cooperation of the first clamping portion and the second clamping portion.
4. The through channel top plate according to claim 3, wherein a first strip-shaped groove and a second strip-shaped groove are respectively arranged on two opposite side walls of the groove, a notch is arranged at one end side of the first strip-shaped groove, a stop piece is rotatably connected to one end of the second strip-shaped groove opposite to the notch, an elastic piece is arranged at one side of the stop piece, one end of the elastic piece is fixedly arranged at a rotating connection end of the stop piece, and the free end of the stop piece is rotatably clamped in the second strip-shaped groove and the notch in a matched mode.
5. A rail vehicle comprising a vehicle body and the through-channel roof of any one of claims 1-4, the through-channel roof being connected to the vehicle body by a roof mount.
Priority Applications (1)
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| CN202210382784.3A CN114771589B (en) | 2022-04-13 | 2022-04-13 | Through-channel roof and rail vehicle |
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| CN202210382784.3A CN114771589B (en) | 2022-04-13 | 2022-04-13 | Through-channel roof and rail vehicle |
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| Publication number | Publication date |
|---|---|
| CN114771589A (en) | 2022-07-22 |
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