A connection structure between a front cover and a front frame of a city rail vehicle

Abstract

The present application relates to a connection structure between a front hood and a front frame of a city rail vehicle, and belongs to the field of composite technology of front hood and front frame of a city rail vehicle, which includes a front hood and a front frame that cooperate with each other, and the front frame includes a window upper crossbeam, a window column, a window lower crossbeam, a floor and a rear frame that are sequentially arranged and interconnected, and a column corresponding to the window column is provided on the front hood, and the window column is plugged and fixedly connected with the corresponding column, and a first connecting piece fixedly connected to the inner side wall of the hood is provided on the window upper crossbeam, the window lower crossbeam and the floor, and a second connecting piece fixedly connected to the rear frame is provided on the inner side wall of the hood. The present application has the effect of reducing the adverse effect of the width of the A-pillar on the field of view of the front window of the vehicle.

Description

Technical Field

[0001] The present application relates to the field of the composite technology of a front cover and a front frame of a city rail vehicle, and in particular to a connection structure between a front cover and a front frame of a city rail vehicle. Background Art

[0002] Urban rail vehicles refer to railway vehicles with high passenger capacity in cities, that is, railway vehicles used in urban rail transit. At present, the front cover and front frame of common urban rail vehicles are mostly fixed by metal connectors and bolts. During installation, the front frame is first installed on the vehicle body, and then the front cover is installed and fixed on the front frame by metal connectors and bolts to complete the installation of the front cover and the front frame.

[0003] In the related art, the front hood and the front frame are installed and fixed by metal connecting codes and bolts. Since the metal connecting code at each connection point needs to occupy a certain space, it is easy to cause the width of the A-pillar to be larger, which in turn has an adverse effect on the field of view of the front window of the vehicle. Summary of the invention

[0004] In order to reduce the adverse effect of the width of the A-pillar on the field of view of the front window of the vehicle, the present application provides a connection structure between a front cover and a front frame of an urban rail vehicle.

[0005] The present application provides a connection structure between a front cover and a front frame of a city rail vehicle, which adopts the following technical solution:

[0006] A connection structure between a front hood and a front frame of an urban rail vehicle comprises a front hood and a front frame that cooperate with each other, the front frame comprising an upper window beam, a window column, a lower window beam, a floor and a rear frame that are sequentially arranged and connected to each other, the front hood is provided with a column corresponding to the window column, the window column is plugged and fixedly connected to the corresponding column, the upper window beam, the lower window beam and the floor are all provided with a first connecting piece fixedly connected to the inner side wall of the front hood, and the inner side wall of the front hood is provided with a second connecting piece fixedly connected to the rear frame.

[0007] By adopting the above technical solution, the window post is inserted into the column and fixed, which reduces the space required for the connection between the window post and the column, thereby reducing the width of the A-pillar. At this time, the field of view of the front window is increased, reducing the adverse effect of the width of the A-pillar on the field of view of the front window of the vehicle. The upper crossbeam of the window, the lower crossbeam of the window and the floor are fixed to the front cover by the first connecting member, and the rear frame is fixed to the front cover by the second connecting member, so that the front frame is pre-installed on the front cover, reducing the installation inconvenience caused by first installing the front frame on the vehicle body and then installing the front cover, thereby improving the assembly efficiency.

[0008] Optionally, the first connecting member includes an adhesive code adapted to the inner side wall of the front hood, and the adhesive codes are fixedly connected to the front frame. The second connecting member includes a connecting code fixedly connected to the inner side wall of the front hood and corresponding to the rear frame, and the connecting code is fixedly connected to the rear frame by bolts.

[0009] By adopting the above technical scheme, the upper window beam, the lower window beam and the floor are fixed to the inner wall of the front hood by adhesive codes, and the rear frame is fixed to the front hood by connecting codes and bolts, so that the front frame and the front hood are assembled together in advance, which is convenient for assembling the front frame and the front hood as a whole on the vehicle body, while reducing the use of connecting codes and bolts, thereby improving assembly efficiency.

[0010] Optionally, a first long hole adapted to the bolt is formed on the connection code, and a second long hole adapted to the first long hole is formed on the rear frame, and the first long hole is perpendicular to the corresponding second long hole.

[0011] By adopting the above technical solution, the first long hole on the connecting code and the second long hole on the rear frame enable the rear end adjustment function to be provided when the rear frame is installed and fixed to the front hood by means of the connecting code and bolts. That is, when the contours of the front hood and the front frame are out of tolerance, the relative position of the rear frame can be adjusted to meet the contour requirements of the vehicle assembly and maintain the aesthetics of the installed vehicle.

[0012] Optionally, the window pillar is bonded to the corresponding upright post and fixed by winding with fiber cloth, and the connecting code is bonded to the inner wall of the hood.

[0013] By adopting the above technical solution, the window post is inserted and bonded to the corresponding column, and the window post and the column are further wrapped and fixed by fiber cloth, thereby improving the stability of the connection between the window post and the column. The upper window beam, the lower window beam and the floor are bonded to the front cover through the connecting code, thereby reducing the use of connecting codes and bolts and improving assembly efficiency.

[0014] Optionally, a gluing assembly corresponding to the front hood is detachably connected to the front frame, the gluing assembly includes two first rollers that are oppositely arranged and located on the side of the upper window beam close to the front hood, a driving rod is provided on the side of the first roller close to the front frame, a second roller is provided on the side of the driving rod close to the front hood and located on the upper side of the lower window beam, a third roller is provided on the side of the driving rod close to the front hood and located on the upper side of the floor, a glue box is provided on the driving rod for feeding glue to the first roller, the second roller and the third roller, and a driving assembly is provided on the front frame for driving the driving rod to move along the edge of the front frame close to the front hood.

[0015] By adopting the above technical solution, the front frame is driven to drive the gluing assembly close to the front hood until the first roller, the second roller and the third roller abut against the inner wall of the front hood away from the side of the front frame, and the driving rod is driven by the driving assembly to move away from each other along the edge of the floor close to the side of the front hood. At this time, the glue in the glue box moves to the first roller, the second roller and the third roller, so as to facilitate the simultaneous gluing of the areas on the inner wall of the front hood corresponding to the window upper beam, the window lower beam and the bonding codes on the floor, thereby reducing the possibility of manual gluing of the front hood and further improving assembly efficiency.

[0016] Optionally, one end of the driving rod away from the first roller is bent toward the direction close to the floor and is located on the lower side of the floor, the bent end of the driving rod is sleeved and slidably connected with a mounting rod, a first spring is installed between the mounting rod and the corresponding driving rod, the driving assembly includes a two-way lead screw that passes through the ends of the mounting rod and is threadedly connected to the mounting rod, the two-way lead screw is detachable and rotatably connected to the floor, a hook adapted to the front frame is slidably connected to the upper side of the interior of the front hood, and the ends of the two-way lead screw are provided with a first hydraulic cylinder that drives the front frame to move upward.

[0017] By adopting the above technical scheme, the two-way screw is installed on the floor, and one end of the driving rod away from the mounting rod abuts against the side of the floor close to the front cover and is located in the middle of the two-way screw, and the first spring is stretched, driving the two-way screw to rotate and drive the driving rod to move in the direction away from each other. At this time, the first roller, the second roller and the third roller apply glue to the inner wall of the front cover along the edge of the floor, and when the end of the driving rod close to the first roller moves to the edge of the floor, the first spring recovers its deformation and drives the driving rod to move in the direction close to the mounting rod and separates from the front cover. At this time, the glue coating is completed on the area on the inner wall of the front cover corresponding to the window upper beam, the window lower beam and the bonding code on the floor, and the first hydraulic cylinder drives the front frame to drive the hook to move upward to face the front cover. At this time, the front frame is driven to move until it is bonded to the front cover, and the first hydraulic cylinder supports the front frame to improve the stability of the bonding between the front frame and the front cover.

[0018] Optionally, a fourth roller is provided on the side of the window post close to the front hood, and a sleeve is rotatably connected to the side of the fourth roller away from the front hood, and an end of the sleeve away from the front hood is plugged and slidably connected to a connecting rod whose end is plugged and slidably connected to the window post, a second spring is installed between the connecting rod and the sleeve, and a telescopic rod is hinged on the side of the connecting rods close to each other, and the telescopic rod is fixedly connected to the same rotating tube, a fixing part fixed to the window post is provided on the rotating tube, a sliding part for driving the sleeve to slide is provided in the rotating tube, and a rotating part for driving the rotating tube to rotate is provided on the front frame.

[0019] By adopting the above technical solution, the fourth roller is installed between the window posts through the fixing part, and the end of the connecting rod is inserted into the side of the window post close to the hood. When the driving rod moves in the area between the window posts, the fourth roller does not contact the side wall of the hood. When the driving rod moves to the side where the window posts are away from each other, the sliding part drives the sleeve to move until the fourth roller abuts against the hood, the second spring is stretched, and the rotating part drives the rotating tube to drive the telescopic rod, the connecting rod, the sleeve and the fourth roller to rotate along the circumference of the rotating tube, so that the fourth roller is coated with glue against the column. After the coating is completed, the fourth roller is removed to further improve the assembly efficiency.

[0020] Optionally, the fixing member includes a mounting tube which is sleeved on the outside of the rotating tube and is slidably and rotatably connected to the rotating tube, a third spring is provided between the mounting tube and the rotating tube, and second hydraulic cylinders facing the window column and abutting against the window column are fixedly connected on both sides of the mounting tube, and the rotating member includes a first gear which is sleeved on the outside of the rotating tube, a first rack is meshed on the lower side of the first gear, a reciprocating screw is passed through the lower side of the first rack and is threadedly connected, and the reciprocating screw is detachably and rotatably connected to the vehicle head frame.

[0021] By adopting the above technical solution, the telescopic rod of the third hydraulic cylinder is driven to extend and abut against the window column, thereby fixing the rotating tube on the window column. When applying glue to the column, the reciprocating screw is driven to rotate and the first rack is driven to move back and forth, thereby driving the rotating tube, the telescopic rod, the connecting tube, the sleeve and the fourth roller to swing along the circumference of the rotating tube through the first gear, which is convenient for applying glue to the column and improves the assembly efficiency.

[0022] Optionally, the sliding member includes a sliding plate fixedly connected to the sleeve, the sliding plate away from the front cover is fixedly connected to a sliding rod passing through and slidably connected to the rotating tube, a fourth spring is installed between the sliding rod and the rotating tube, the sliding rod away from the sliding plate is fixedly connected to an end thereof The driving plate protrudes from both ends to the middle gradually toward the sliding rod, and an abutment rod located between the two ends of the driving plate is fixedly connected to the upper side of the mounting rod, and when the driving rod moves to the side where the window columns are away from each other, the abutment rod abuts against the side wall of the end of the driving plate.

[0023] By adopting the above technical solution, when the driving rod moves and applies glue in the area between the window pillars, the fourth roller does not contact the side wall of the hood; when the driving rod moves to the side where the window pillars are away from each other, the abutment rod fixed to the mounting rod squeezes the driving plate to drive the sliding rod, the sliding plate, the sleeve and the fourth roller to move until they abut against the side wall of the hood, thereby facilitating the application of glue to the side wall of the pillar and improving assembly efficiency.

[0024] Optionally, a plurality of ratchets are provided on one side of the upper end of the hook, a pawl engaged with the ratchets is hinged on the inner wall of the front cover, the lower end of the hook is plugged in and slidably connected to a limit plate, a fifth spring is installed between the limit plate and the hook, and the lower side of the limit plate is set to be an inclined surface inclined toward the side away from the fifth spring.

[0025] By adopting the above technical solution, when the front frame is installed on the hook, the hook is elongated, driving the front frame to move in the direction close to the hook until it contacts the lower side of the limit plate, and continues to drive the limit plate to move. At this time, the upper end of the front frame squeezes the limit plate along the inclined surface until the upper section of the front frame is completely inserted into the hook. At this time, the fifth spring recovers its deformation and pushes the limit plate to block the hook. At this time, the height of the lower end of the window column is lower than the height of the lower end of the column. After the glue is applied, the first hydraulic cylinder drives the front frame to drive the hook to move upward, and the pawl rotates under the drive of the ratchet to facilitate the hook to be inserted into the side wall of the front hood. When the front frame is facing the front hood, the pawl and ratchet fix the hook to the front hood, further improving the stability of the connection between the front frame and the front hood.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] The window pillar is inserted into the pillar and fixed, so as to reduce the space required for connecting the window pillar and the pillar, thereby reducing the width of the A-pillar. At this time, the visual field of the front window is increased, and the adverse effect of the width of the A-pillar on the visual field of the front window of the vehicle is reduced. The upper crossbeam of the window, the lower crossbeam of the window and the floor are fixed to the front cover by the first connecting member, and the rear frame is fixed to the front cover by the second connecting member, so that the front frame is pre-installed on the front cover, reducing the installation inconvenience caused by first installing the front frame on the vehicle body and then installing the front cover, thereby improving the assembly efficiency;

[0028] The first long hole on the connecting code and the second long hole on the rear frame enable the rear frame to be fixed to the front cover by the connecting code and the bolts, so that the rear frame can be adjusted when the profiles of the front cover and the front frame are out of tolerance, so as to meet the profile requirements of the vehicle assembly and maintain the aesthetics of the installed vehicle;

[0029] The first hydraulic cylinder drives the front frame to drive the hook to move upward to face the front frame. At this time, the front frame is driven to move until it is bonded to the front frame. The first hydraulic cylinder supports the front frame to improve the bonding stability of the front frame and the front frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the connection structure between the front cover and the front frame of the urban rail vehicle in Example 1 of the present application.

[0031] Figure 2 It is a structural schematic diagram showing the positional relationship between the rear frame and the front hood in Example 1 of the present application.

[0032] Figure 3 It is a structural schematic diagram showing the positional relationship between the glue coating component and the front frame in Example 2 of the present application.

[0033] Figure 4 It is a structural diagram showing the positional relationship between the hook and the sleeve in Example 2 of the present application.

[0034] Figure 5 It is a structural schematic diagram showing the positional relationship between the fourth roller and the glue coating assembly in Example 2 of the present application.

[0035] Explanation of the reference numerals: 1. hood; 11. pillar; 12. connection code; 121. first long hole; 2. front frame; 21. upper beam of window; 22. window pillar; 23. lower beam of window; 24. floor; 25. rear frame; 251. second long hole; 26. bonding code; 3. hook; 31. limit plate; 32. fifth spring; 33. sleeve; 34. ratchet; 35. pawl; 4. glue coating assembly; 41. first roller; 42. driving rod; 43. second roller; 44. third roller; 45. glue box; 5. driving assembly; 51. mounting rod; 52. first spring; 53. bidirectional screw; 54. control panel; 55. third hydraulic cylinder; 551. card Connecting block; 56, second gear; 561, second rack; 562, fourth hydraulic cylinder; 57, first hydraulic cylinder; 6, fourth roller; 61, sleeve; 62, connecting rod; 63, second spring; 64, telescopic rod; 65, rotating tube; 7, fixing member; 71, mounting tube; 72, third spring; 73, second hydraulic cylinder; 74, clamping plate; 8, sliding member; 81, sliding plate; 82, sliding rod; 83, fourth spring; 84, driving plate; 85, abutting rod; 9, rotating member; 91, first gear; 92, first rack; 93, reciprocating screw; 94, control block; 95, mounting frame; 96, motor; 97, fifth hydraulic cylinder; 98, fixing block. DETAILED DESCRIPTION

[0036] The present application is further described in detail below in conjunction with the accompanying drawings.

[0037] The embodiment of the present application discloses a connection structure between a front cover and a front frame of an urban rail vehicle. Example

[0038] Reference Figure 1 and Figure 2 A connection structure between a front hood and a front frame of an urban rail vehicle includes a front hood 1 and a front frame 2 that cooperate with each other. The front frame 2 includes an upper window beam 21, a window column 22, a lower window beam 23 and a floor 24 that are sequentially arranged and connected to each other, wherein two window columns 22 are arranged and arranged opposite to each other, and the upper window beam 21 and the lower window beam 23 are fixedly connected to the same vertical rear frame 25 at one end away from the front hood 1.

[0039] The front cover 1 includes pillars 11 corresponding to the window pillars 22, and the window pillars 22 are inserted into the corresponding pillars 11 and fixedly connected to the pillars 11. In the embodiment of the present application, the window pillars 22 and the pillars 11 are bonded by a composite material of fiber bundles and resin, and are fixed by winding with fiber cloth.

[0040] The upper window beam 21, the lower window beam 23 and the floor 24 are provided with a plurality of evenly distributed first connectors connected to the inner wall of the hood 1 on one side close to the hood 1, and the hood 1 is provided with a second connector for fixing the rear frame 25 on one end close to the rear frame 25 and on one side close to each other.

[0041] The window post 22 is inserted and bonded into the corresponding column 11, and the window post 22 and the column 11 are further wrapped and fixed by fiber cloth, so as to improve the stability of the connection between the window post 22 and the column 11, reduce the space required for the connection between the window post 22 and the column 11, and thus reduce the width of the A-pillar. At this time, the field of view of the front window is increased, and the upper window beam 21, the lower window beam 23 and the floor 24 are fixed to the front cover 1 by the first connecting member, and the rear frame 25 is fixed to the front cover 1 by the second connecting member, so that the front frame 2 is pre-installed on the front cover 1, reducing the installation inconvenience caused by first installing the front frame 2 on the vehicle body and then installing the front cover 1, thereby improving the assembly efficiency.

[0042] Reference Figure 1 and Figure 2 The first connecting member includes a bonding code 26 that fits the inner wall of the hood 1. The upper window beam 21, the lower window beam 23 and the floor 24 are fixedly connected to the lower ends of the corresponding bonding codes 26. The side of the bonding code 26 close to the hood 1 is also bonded to the inner wall of the hood 1 through a composite material of fiber bundles and resin. The second connecting member includes connecting codes 12 located on both sides of the rear frame 25 in the vertical direction and fixedly connected to the inner wall of the hood 1. The connecting codes 12 fix the hood 1 to the rear frame 25 through bolts.

[0043] The connection code 12 is provided with first long holes 121 corresponding to the bolts one by one and arranged along the length direction of the floor 24, and the rear frame 25 is also provided with second long holes 251 corresponding to the bolts one by one and arranged along the vertical direction.

[0044] The upper window beam 21, the lower window beam 23 and the floor 24 are all bonded and fixed to the inner wall of the front hood 1 through the bonding code 26, and the rear frame 25 is fixed to the front hood 1 through the connecting code 12 and bolts, so that the front frame 2 and the front hood 1 are assembled together in advance, which is convenient for assembling the front frame 2 and the front hood 1 as a whole on the vehicle body, while reducing the amount of connecting code 12 and bolts, and improving assembly efficiency. The first long hole 121 on the connecting code 12 and the second long hole 251 on the rear frame 25 can adjust the relative position of the rear frame 25 when the contours of the front hood 1 and the front frame 2 are out of tolerance, so as to meet the contour requirements of the vehicle assembly and maintain the aesthetics of the installed vehicle.

[0045] The implementation principle of Example 1 is as follows: the window column 22 is inserted and bonded to the corresponding column 11, and the window column 22 and the column 11 are further wrapped and fixed by fiber cloth, so as to improve the stability of the connection between the window column 22 and the column 11, reduce the width of the A-pillar, and increase the field of view of the front window. The upper window beam 21, the lower window beam 23 and the floor 24 are all bonded and fixed to the inner wall of the front hood 1 by the bonding code 26, and the rear frame 25 is fixed to the front hood 1 by the connecting code 12 and bolts, so that the front frame 2 is pre-installed on the front hood 1 to improve the assembly efficiency. Example

[0046] Reference Figure 3 and Figure 4 The difference between this embodiment and embodiment 1 is that two vertical hooks 3 adapted to the upper end of the front frame 2 are provided on the upper side of the interior of the vehicle head cover 1, the hooks 3 open downward, and one side of the lower end of the hooks 3 is plugged and slidably connected with a limiting plate 31, a fifth spring 32 connecting the two is fixedly connected between one end of the limiting plate 31 and the inner side wall of the hook 3, the lower side of the limiting plate 31 is set as an inclined surface inclined upward and away from the fifth spring 32, and the end of the limiting plate 31 away from the fifth spring 32 is inserted into the inner side wall of the hook 3.

[0047] A sleeve 33 corresponding to the hook 3 is fixedly connected to the upper end of the interior of the hood 1, and the upper end of the hook 3 is inserted into the sleeve 33 and slidably connected to the sleeve 33. A plurality of ratchets 34 are fixedly connected to one side of the end of the hook 3 inserted into the sleeve 33, and a pawl 35 corresponding to the ratchets 34 is hinged in the sleeve 33. When the hook 3 moves upward, the ratchets 34 drive the pawl 35 to rotate, and the pawl 35 abuts against the lower side wall of the ratchets 34 and limits the hook 3, reducing the possibility of the hook 3 escaping from the sleeve 33.

[0048] Reference Figure 3 and Figure 5 A glue coating component 4 is provided on the side of the front frame 2 close to the front cover 1. The glue coating component 4 includes two first rollers 41 symmetrically arranged and having a height higher than the upper side height of the window upper cross beam 21. The first rollers 41 are used to coat glue on the area on the inner wall of the front cover 1 corresponding to the bonding code 26 of the window upper cross beam 21. The first rollers 41 are rotatably connected to the side of the front frame 2 close to the front cover 1 with a driving rod 42 adapted to the side of the front frame 2 close to the front cover 1. The driving rods 42 are rotatably connected to the side of the front cover 1 with a second roller 43 located at the lower side of the first roller 41. The second rollers 43 are used to coat glue on the area on the inner wall of the front cover 1 corresponding to the bonding code 26 on the window lower cross beam 23.

[0049] The lower end of the driving rod 42 is rotatably connected to a third roller 44 for applying glue to the area on the inner side wall of the vehicle hood 1 corresponding to the adhesive code 26 on the floor 24, and the driving rod 42 is equipped with a glue box 45 corresponding to the first roller 41, the second roller 43 and the third roller 44. The lower end of the driving rod 42 is bent in a direction away from the vehicle hood 1 and is located under the floor 24. The floor 24 is detachably connected to a driving component 5 that drives the driving rod 42 to move in a direction away from each other along the edge of the floor 24 close to the vehicle hood 1.

[0050] When the front frame 2 is installed on the hook 3, the hook 3 is stretched, driving the front frame 2 to move in the direction close to the hook 3 until it contacts the lower side of the limit plate 31, and continues to drive the limit plate 31 to move. At this time, the upper end of the front frame 2 squeezes the limit plate 31 along the inclined surface to move until the upper section of the front frame 2 is completely inserted into the hook 3. At this time, the fifth spring 32 recovers its deformation and pushes the limit plate 31 to block the hook 3. At this time, the lower end height of the window column 22 is lower than the lower end height of the column 11, and the first roller 41, the second roller 43 and the third roller 44 are in contact with the inner wall of the front cover 1 away from the side of the front frame 2. The driving rod 42 is driven by the driving assembly 5 to move in the direction away from each other, and the glue in the glue box 45 moves to the corresponding first roller 41, the second roller 43 and the third roller 44, so as to facilitate the simultaneous application of glue to the areas on the inner wall of the front cover 1 corresponding to the window upper beam 21, the window lower beam 23 and the bonding code 26 on the floor 24.

[0051] After the glue coating is completed, the first hydraulic cylinder 57 drives the front frame 2 to drive the hook 3 to move upward, and the pawl 35 rotates under the drive of the ratchet 34, so as to facilitate the hook 3 to be inserted into the side wall of the front hood 1. When the front frame 2 is facing the front hood 1, the pawl 35 and the ratchet 34 fix the hook 3 to the front hood 1, thereby improving the stability of the connection between the front frame 2 and the front hood 1.

[0052] Reference Figure 3 and Figure 5 The driving assembly 5 includes a mounting rod 51 corresponding to the driving rod 42 and sleeved and slidably connected to the bent end of the driving rod 42. A first spring 52 is fixedly connected between the mounting rod 51 and the corresponding bent end of the driving rod 42. The ends of the mounting rod 51 away from the driving rod 42 are penetrated and threadedly connected with a bidirectional lead screw 53 at the same level. A control board 54 is sleeved and rotatably connected in the middle of the bidirectional lead screw 53. A third hydraulic cylinder 55 facing the floor 24 is fixedly connected at the upper end of the control board 54 and at a side close to the floor 24. A clamping block 551 is fixedly connected at the end of the third hydraulic cylinder 55. The telescopic rod 64 of the third hydraulic cylinder 55 extends and drives the clamping block 551 to clamp in the middle of the floor 24 away from the front cover 1. At this time, the end of the driving rod 42 close to the first roller 41 is located in the middle of the front frame 2 close to the front cover 1 and is symmetrically arranged, and the first spring 52 is stretched.

[0053] Both ends of the bidirectional lead screw 53 are socketed and fixedly connected with a second gear 56, and a second rack 561 is meshed on the lower side of the second gear 56. A fourth hydraulic cylinder 562 horizontally and parallel to the mounting rod 51 is installed at the same end of the first rack 92, and a vertical first hydraulic cylinder 57 is installed on the lower side of the fourth hydraulic cylinder 562 away from the end of the second rack 561.

[0054] The bidirectional lead screw 53 is installed on the floor 24 through the third hydraulic cylinder 55 and the clamping block 551. The end of the driving rod 42 away from the mounting rod 51 is abutted against the side of the floor 24 close to the hood 1 and located in the middle of the bidirectional lead screw 53. The first spring 52 is stretched, and the fourth hydraulic cylinder 562 drives the second rack 561 to move, so that the second gear 56 drives the bidirectional lead screw 53 to rotate and drives the driving rod 42 to move away from each other through the mounting rod 51. At this time, the first roller 41, the second roller 43 and the third roller 44 apply glue to the inner wall of the hood 1 along the edge of the floor 24. When the driving rod 4 When the end close to the first roller 41 moves to the edge of the floor 24, the first spring 52 recovers its deformation and drives the driving rod 42 to move toward the direction close to the mounting rod 51 and separate from the front cover 1. At this time, the glue coating is completed on the inner wall of the front cover 1 corresponding to the upper window beam 21, the lower window beam 23 and the bonding code 26 on the floor 24. The first hydraulic cylinder 57 drives the front frame 2 to drive the hook 3 to move upward to face the front cover 1. At this time, the front frame 2 is driven to move until it is bonded to the front cover 1. The first hydraulic cylinder 57 supports the front frame 2 to improve the bonding stability of the front frame 2 and the front cover 1.

[0055] Reference Figure 3 and Figure 5 , the side of the window column 22 close to the column 11 is provided with a fourth roller 6, the side of the fourth roller 6 close to the window column 22 is rotatably connected with a sleeve 61, and the end of the sleeve 61 close to the fourth roller 6 and the side close to each other are installed with a plastic box 45 corresponding to the fourth roller 6. The end of the sleeve 61 away from the corresponding fourth roller 6 is plugged and slidably connected with a connecting rod 62, and a second spring 63 located in the sleeve 61 and connecting the two is installed between the connecting rod 62 and the corresponding sleeve 61, and the end of the connecting rod 62 away from the corresponding sleeve 61 is inserted into the window column 22 and slidably connected with the window column 22 along the length direction of the window column 22.

[0056] The connecting rods 62 are hinged on one side thereof which is perpendicular to the length direction of the connecting rods 62. When the end of the connecting rod 62 is inserted into the corresponding window column 22, the telescopic rod 64 is stretched. The ends of the telescopic rods 64 which are away from the corresponding connecting rods 62 are fixedly connected to the same rotating tube 65 which is parallel to the length direction of the connecting rod 62. The rotating tube 65 is provided with a fixing part 7 which is fixed to the window column 22. The rotating tube 65 is provided with a sliding part 8 which drives the sleeve 61 to slide and a rotating part 9 which drives the sleeve 61 to rotate along the circumference of the rotating tube 65.

[0057] The fixing member 7 includes a mounting tube 71 which is sleeved and rotatably connected with the rotating tube 65. The rotating tube 65 passes through the mounting tube 71. The diameter of the end of the rotating tube 65 away from the vehicle head cover 1 is larger than the diameter of the end of the rotating tube 65 close to the vehicle head cover 1. The end of the rotating tube 65 with a larger width is sleeved with a third spring 72. One end of the second spring 63 abuts against the end of the mounting tube 71, and the other end abuts against the end of the rotating tube 65 with a larger diameter. The mounting tube 71 is fixedly connected to both sides of the end close to the vehicle head cover 1 with a second hydraulic cylinder 73 which is horizontal and faces away from each other. The telescopic rod 64 of the second hydraulic cylinder 73 is fixedly connected with a clamping plate 74 which is adapted to the side wall of the window column 22. When the telescopic rod 64 of the second hydraulic cylinder 73 is extended until the side wall of the clamping plate 74 abuts against the side of the window column 22 close to each other, the rotating tube 65 is relatively fixed to the window column 22.

[0058] Reference Figure 3 and Figure 5 The sliding member 8 includes a sliding plate 81 fixed to the end of the sleeve 61 away from the fourth roller 6, and the ends of the sliding plate 81 are sleeved on the connecting rod 62 and are slidably connected to the connecting rod 62. A sliding rod 82 that penetrates the rotating tube 65 and is slidably connected to the rotating tube 65 is fixedly connected to the middle of the sliding plate 81 away from the front cover 1. The sliding rod 82 has a square cross section, and a fourth spring 83 is installed to connect the end of the sliding rod 82 away from the front cover 1 and the end of the rotating tube 65. One end of the fourth spring 83 is fixedly connected to the end of the rotating tube 65, and the other end is fixedly connected to the end of the sliding rod 82.

[0059] A vertical driving plate 84 is provided at one end of the sliding rod 82 away from the hood 1, and the middle of the driving plate 84 is fixedly connected to the end of the sliding rod 82, and both ends of the driving plate 84 are inclined in a direction away from each other and away from the hood 1. A vertical abutment rod 85 located at both ends of the driving plate 84 and on one side close to each other is fixedly connected to the upper side of one end of the mounting rod 51 close to the two-way lead screw 53. When the driving rod 42 moves to the side of the window pillar 22 away from each other, the side of the abutment rod 85 away from each other abuts against the side wall of the inclined end of the driving plate 84 and pushes the driving plate 84 to move in a direction close to the hood 1.

[0060] The telescopic rod 64 driving the third hydraulic cylinder 55 is extended and abutted against the window post 22, thereby fixing the rotating tube 65 on the window post 22. When the driving rod 42 moves and applies glue in the area between the window posts 22, the fourth roller 6 does not contact the side wall of the front cover 1. When the driving rod 42 moves to the side where the window posts 22 are away from each other, the abutting rod 85 fixed to the mounting rod 51 squeezes the driving plate 84 to drive the sliding rod 82, the sliding plate 81, the sleeve 61 and the fourth roller 6 to move until they abut against the side wall of the front cover 1, so as to facilitate the gluing of the side wall of the column 11. After the gluing is completed, the fourth roller 6 is removed to facilitate the installation of the front cover 1 and the front frame 2.

[0061] Reference Figure 3 and Figure 5 The rotating member 9 includes a first gear 91 which is sleeved on the outer side of the end with a larger diameter of the rotating tube 65 and is fixedly connected to the rotating tube 65. A first rack 92 is meshed on the lower side of the first gear 91. A reciprocating screw 93 parallel to the first rack 92 is provided on the lower side of the first rack 92. A control block 94 is fixedly connected to the lower side of the first rack 92. The control block 94 is sleeved and threadedly connected to the reciprocating screw 93. A mounting frame 95 which is rotatably connected to the reciprocating screw 93 is provided on the lower side of the reciprocating screw 93. A motor 96 which is fixedly connected to the mounting frame 95 is installed at the end of the reciprocating screw 93. A fifth hydraulic cylinder 97 which faces the front cover 1 is fixedly connected to the middle part of the mounting frame 95 which is close to the front cover 1. A fixed block 98 which is adapted to the lower cross beam 23 of the window is fixedly connected to the telescopic rod 64 of the fifth hydraulic cylinder 97. The telescopic rod 64 of the fifth hydraulic cylinder 97 is extended and the fixed block 98 is clamped on the lower cross beam 23 of the window. At this time, the mounting frame 95 is relatively fixed to the lower cross beam 23 of the window.

[0062] When applying glue to the column 11, the mounting frame 95 is installed on the front frame 2 through the fifth hydraulic cylinder 97 and the fixing block 98. At this time, the first rack 92 and the first gear 91 are meshed, and the motor 96 drives the reciprocating screw 93 to rotate and drives the first rack 92 to move back and forth, thereby driving the rotating tube 65, the telescopic rod 64, the connecting tube, the sleeve 61 and the fourth roller 6 to swing circumferentially along the rotating tube 65 through the first gear 91, so as to facilitate the application of glue to the column 11.

[0063] The implementation principle of Example 2 is as follows: the bidirectional lead screw 53 is installed on the floor 24, the driving rod 42 is located in the middle of the bidirectional lead screw 53, the first spring 52 is stretched, driving the bidirectional lead screw 53 to rotate and drive the driving rod 42 to move in the direction away from each other. At this time, the first roller 41, the second roller 43 and the third roller 44 apply glue to the inner wall of the head cover 1 along the edge of the floor 24. When the end of the driving rod 42 close to the first roller 41 moves to the edge of the floor 24, the first spring 52 restores its deformation and drives the driving rod 42 to move in the direction close to the mounting rod 51 and separate from the head cover 1. At this time, the area on the inner wall of the head cover 1 corresponding to the window upper cross beam 21, the window lower cross beam 23 and the bonding code 26 on the floor 24 is glued, and the front frame 2 is driven to drive the hook 3 to move upward to face the front cover 1, and drive the front frame 2 to move until it is bonded to the front cover 1, completing the installation of the head cover 1 and the front frame 2.

[0064] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A connection structure between a front cover and a front frame of an urban rail vehicle, characterized in that: The vehicle comprises a front cover (1) and a front frame (2) which cooperate with each other, wherein the front frame (2) comprises an upper window beam (21), a window column (22), a lower window beam (23), a floor (24) and a rear frame (25) which are arranged in sequence and connected to each other, the front cover (1) is provided with a column (11) corresponding to the window column (22), the window column (22) is plugged into and fixedly connected to the corresponding column (11), the upper window beam (21), the lower window beam (23) and the floor (24) are all provided with a first connecting piece which is fixedly connected to the inner side wall of the front cover (1), and the inner side wall of the front cover (1) is provided with a The first connecting member comprises an adhesive code (26) adapted to the inner side wall of the vehicle head cover (1), and the adhesive code (26) is fixedly connected to the vehicle head frame (2); the second connecting member comprises a connecting code (12) fixedly connected to the inner side wall of the vehicle head cover (1) and corresponding to the rear frame (25), and the connecting code (12) is fixedly connected to the rear frame (25) by bolts; the connecting code (12) is provided with a first long hole (121) adapted to the bolt, and the rear frame (25) is provided with a second long hole (121) adapted to the first long hole (121) The first long hole (251) is perpendicular to the corresponding second long hole (251); the window column (22) is bonded to the corresponding upright column (11) and fixed by winding with fiber cloth; the connection code (12) is bonded to the inner wall of the front cover (1); a glue coating component (4) corresponding to the front cover (1) is detachably connected to the front frame (2); the glue coating component (4) comprises two first rollers (41) arranged opposite to each other and located on a side of the window upper cross beam (21) close to the front cover (1); a driving rod is provided on the side of the first roller (41) close to the front frame (2). (42), a second roller (43) located on the upper side of the window lower cross beam (23) is provided on the side of the driving rod (42) close to the front cover (1), a third roller (44) located on the upper side of the floor (24) is provided on the side of the driving rod (42) close to the front cover (1), a glue box (45) for feeding glue to the first roller (41), the second roller (43) and the third roller (44) is provided on the driving rod (42), and a driving component (5) for driving the driving rod (42) to move along the edge of the front frame (2) close to the front cover (1) is provided on the front frame (2).

2. The connection structure between the front cover and the front frame of a city rail vehicle according to claim 1, characterized in that: One end of the driving rod (42) away from the first roller (41) is bent in a direction close to the floor (24) and is located on the lower side of the floor (24); the bent end of the driving rod (42) is sleeved and slidably connected to a mounting rod (51); a first spring (52) is installed between the mounting rod (51) and the corresponding driving rod (42); the driving assembly (5) includes a bidirectional lead screw (53) that passes through the ends of the mounting rod (51) and is threadedly connected to the mounting rod (51); the bidirectional lead screw (53) is detachably and rotatably connected to the floor (24); a hook (3) adapted to the vehicle frame (2) is slidably connected to the upper side of the interior of the vehicle head cover (1); and a first hydraulic cylinder (57) for driving the vehicle frame (2) to move upward is provided at the ends of the bidirectional lead screw (53).

3. The connection structure between the front cover and the front frame of a city rail vehicle according to claim 2, characterized in that: A fourth roller (6) is provided on the side of the window column (22) close to the vehicle head cover (1); a sleeve (61) is rotatably connected to the side of the fourth roller (6) away from the vehicle head cover (1); a connecting rod (62) is inserted and slidably connected to the end of the sleeve (61) away from the vehicle head cover (1); a second spring (63) is installed between the connecting rod (62) and the sleeve (61); a telescopic rod (64) is hingedly connected to the side of the connecting rod (62) close to each other; the telescopic rod (64) is fixedly connected to the same rotating tube (65); a fixing member (7) fixed to the window column (22) is provided on the rotating tube (65); a sliding member (8) for driving the sleeve (61) to slide is provided in the rotating tube (65); and a rotating member (9) for driving the rotating tube (65) to rotate is provided on the vehicle head frame (2).

4. The connection structure between the front cover and the front frame of a city rail vehicle according to claim 3, characterized in that: The fixing member (7) comprises a mounting tube (71) sleeved on the outside of the rotating tube (65) and slidably and rotatably connected to the rotating tube (65); a third spring (72) is provided between the mounting tube (71) and the rotating tube (65); second hydraulic cylinders (73) facing the window column (22) and abutting against the window column (22) are fixedly connected to both sides of the mounting tube (71); the rotating member (9) comprises a first gear (91) sleeved on the outside of the rotating tube (65); a first rack (92) is meshed on the lower side of the first gear (91); a reciprocating screw (93) is passed through and threadedly connected to the lower side of the first rack (92); the reciprocating screw (93) is detachably and rotatably connected to the front frame (2).

5. The connection structure between the front cover and the front frame of an urban rail vehicle according to claim 4, characterized in that: The sliding member (8) comprises a sliding plate (81) fixedly connected to the sleeve (61); a sliding rod (82) passing through and slidably connected to the rotating tube (65) is fixedly connected to the side of the sliding plate (81) away from the vehicle head cover (1); a fourth spring (83) is installed between the sliding rod (82) and the rotating tube (65); an end of the sliding rod (82) away from the sliding plate (81) is fixedly connected to a driving plate (84) which gradually protrudes from both ends to the middle in a direction close to the sliding rod (82); an abutment rod (85) located between the two ends of the driving plate (84) is fixedly connected to the upper side of the mounting rod (51); when the driving rod (42) moves to the side of the window column (22) away from each other, the abutment rod (85) abuts against the side wall of the end of the driving plate (84).

6. The connection structure between the front cover and the front frame of a city rail vehicle according to claim 5, characterized in that: A plurality of ratchet teeth (34) are provided on one side of the upper end of the hook (3); a ratchet pawl (35) meshing with the ratchet teeth (34) is hingedly connected on the inner side wall of the vehicle head cover (1); a limit plate (31) is inserted and slidably connected to the lower end of the hook (3); a fifth spring (32) is installed between the limit plate (31) and the hook (3); and a lower side of the limit plate (31) is arranged as an inclined surface inclined toward a side away from the fifth spring (32).

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