Coupler floating connecting device

Abstract

The invention relates to a car coupler floating connecting device which comprises a support, a bearing assembly, a supporting assembly, a guide cone and a guide channel. Wherein the support is fixed to the mechanical coupler, and the bearing assembly comprises a fixed seat and a rotating piece; the electric hook, the air pipe and the rotating piece are connected through the supporting assembly, can float in the up-down direction, the left-right direction and the like with the rotating piece as a fulcrum, and can also conduct motion compensation in the front-back direction with a through hole of the rotating piece as a channel. The guide cone and the guide channel are both arranged on the side supporting plate on the front side of the supporting assembly and are arranged opposite to the guide channel and the guide cone of the car coupler on the opposite side. Floating ranges of the electric hook and the air pipe in all directions are expanded, the problem that circuits and air paths are difficult to automatically connect under the working condition that the height difference of the locomotive coupler and the truck coupler is large is solved, and meanwhile the situation that electrical and air path connection is unstable due to the fact that the two couplers jump relatively and the coupling gap changes continuously after coupling is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of rail vehicles, and in particular relates to a floating coupling device. Background Art

[0002] With the rapid development of rail transit technology, the demand for electrical signal transmission in railway freight vehicles is increasing, and the requirements for automatic connection of coupler circuits and air paths are gradually increasing. In actual engineering, large height difference conditions often occur during the connection process of locomotive couplers and truck couplers. For example, the maximum height difference between the locomotive coupler and the truck coupler before coupling can reach 75mm; after the coupling is completed, due to the relative jump of the couplers, the height difference between the two couplers always changes dynamically, and the height difference further increases during the dynamic change, up to 150mm. This not only hinders the automatic connection of the locomotive coupler and the truck coupler circuit and air path, but also affects the stability of the coupler connection. At the same time, since railway freight vehicles generally use Zhan-type couplers, the coupling gap changes continuously in the range of 0 to 19.5mm, and there is a lack of limit in all directions, resulting in a large relative activity of the coupler in all directions during the coupling process, which further affects the stability of the coupler connection. In order to solve this problem, a floating connection device is usually set between the two vehicles for floating connection.

[0003] As for the floating connection device of the coupler, there are also some designs in the prior art, such as a floating electric coupler pushing mechanism and a coupler having the same disclosed in Chinese invention patent CN114889668B. Although it meets the floating connection of the electric coupler within a certain range, its floating adjustment range is small and it still cannot solve the floating connection problem of the electric coupler under the condition of large height difference between the locomotive coupler and the truck coupler.

[0004] Therefore, there is an urgent need to develop a new type of floating connection device to solve the problem of difficulty in automatically connecting the air circuit and circuit of the locomotive coupler and the truck coupler under conditions of large height difference, as well as the problem of unstable electrical and air circuit connection caused by the relative jumping of the two couplers and the continuous change of the coupling gap after connection. Summary of the invention

[0005] The purpose of the present invention is to solve one of the above-mentioned technical problems and to provide a floating connection device for a coupler, which realizes the floating connection of the electrical coupler and the air duct in various directions such as up, down, left and right during and after the coupling process through the cooperation of the support assembly and the rotating part. At the same time, the axial elastic force of the elastic element is used to compensate for the constantly changing gap between the two couplers in the horizontal direction, thereby ensuring the stability of the electrical and air path connection between the two couplers.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A coupler floating connection device, comprising:

[0008] A bracket, fixedly connected to the mechanical coupler;

[0009] The bearing assembly comprises a fixed seat and a rotating member; the fixed seat is fixedly mounted on the bracket, and a bearing mounting hole is opened on the fixed seat; the rotating member is installed in the bearing mounting hole, and a through hole is opened on the rotating member;

[0010] The support assembly comprises a side support plate, a support shaft and a first elastic member; the side support plate is connected to the electric car coupler; one end of the support shaft is connected to the side support plate, and the other end is slidably connected to the through hole; the first elastic member is sleeved on the outer side of the support shaft, and the two ends thereof are respectively abutted against the side support plate and the fixing seat;

[0011] A guide cone is convexly arranged on a side of the side support plate facing the opposite side electric coupler;

[0012] A guide channel is provided on the side support plate, and the guide channel is provided corresponding to the guide cone of the opposite side coupler;

[0013] When the coupler is automatically connected, the guide cone of the opposite side coupler contacts the inner wall of the guide channel, and after being guided by the guide channel, it continues to move forward and penetrates the guide channel, forcing the support shaft to slide in the through hole, and the first elastic element is compressed until the tail end of the guide channel is engaged with the tail end of the guide cone of the opposite side coupler, and the connection surfaces of the two electric couplers are in contact to complete the connection; after the coupler is connected, when the vehicle is running, the electric coupler uses the rotating part as a fulcrum to float in the up and down, left and right directions, and at the same time uses the through hole as a channel, and the first elastic element is compressed or released to compensate for the movement in the front and rear directions;

[0014] During the guiding process, the guiding force generated between the guide cone and the guide channel of the opposite side hook is transmitted to the rotating member through the respectively connected support shaft and the first elastic member, driving the rotating member to rotate accordingly to achieve motion compensation.

[0015] In some embodiments of the present invention, one end of the support shaft installed in the through hole passes through the through hole;

[0016] The coupler floating connection device further includes a buffer assembly, which includes:

[0017] Gland: fixed to one end of the support shaft passing through the through hole;

[0018] The second elastic element is sleeved on the outer side of one end of the support shaft passing through the through hole, and the two ends of the second elastic element are respectively in contact with the fixing seat and the pressure cover; the rigidity of the second elastic element is smaller than that of the first elastic element.

[0019] In some embodiments of the present invention, a second elastic element guide groove is provided on one side of the fixing seat close to the second elastic element, and the second elastic element abuts against the second elastic element guide groove.

[0020] In some embodiments of the present invention, a first elastic element guide countersunk hole is formed on one side of the fixing seat close to the first elastic element, and the first elastic element abuts against the first elastic element guide countersunk hole.

[0021] In some embodiments of the present invention, a guide portion protruding from the side support plate is provided on the side of the guide channel facing the opposite hook, and the shape of the guide portion matches the conical surface shape of the guide cone of the opposite hook.

[0022] In some embodiments of the present invention, the support comprises:

[0023] Base plate;

[0024] A first side connecting member and a second side connecting member are arranged oppositely at two ends of the bottom plate;

[0025] The first side connecting member and the second side connecting member are each connected with a group of bearing components and a support component; the guide cone and the guide channel are respectively arranged on the two side support plates in the two groups of support components.

[0026] In some embodiments of the present invention, the first side connecting member and the second side connecting member are both arranged in an L-shape, and reinforcing parts are provided at the bending parts of the first side connecting member and the second side connecting member.

[0027] In some embodiments of the present invention, the rotating member includes a rotating part and a connecting part. The connecting part is interference-mounted in the bearing mounting hole. The connecting part is provided with a rotating part accommodating cavity. The rotating part is rotatably mounted in the rotating part accommodating cavity.

[0028] In some embodiments of the present invention, it further includes an electric hook and air duct integrated component; the electric hook and air duct integrated component integrates an electric car hook and an air duct connector, and the side support plate is fixedly connected to the side wall of the electric hook and air duct integrated component.

[0029] In some embodiments of the present invention, a fixing block is provided on one side of the side support plate connected to the support shaft, and a threaded hole is provided at the center of the fixing block;

[0030] A threaded section is arranged on the outer wall of the supporting shaft, and the supporting shaft is matched and connected with the threaded hole at the center of the fixing block through the threaded section.

[0031] The beneficial effects of the present invention are:

[0032] 1. The electric coupler and the air duct connected by the floating connection device provided by the present invention can float in various directions such as up and down, left and right with the rotating part as the fulcrum during and after the automatic coupling of the coupler, and perform motion compensation in various directions. By utilizing the large rotation adjustment range of the rotating part and cooperating with the elastic element, the floating range of the electric coupler in various directions is expanded, and the problem of difficulty in automatic connection of the circuit and the air duct under the working condition that the height difference between the locomotive coupler and the truck coupler is large is solved, and at the same time, the unstable connection of the electric and air duct caused by the relative jumping and left and right displacement of the two couplers after coupling is avoided;

[0033] 2. The floating connection device provided by the present invention can provide radial support force for the support shaft to prevent the support shaft and the electrical coupler and air duct connected to it from sag by slidably connecting the support shaft and the rotating part, and arranging a first elastic element and a second elastic element with different stiffnesses at both ends of the support shaft. It can also control the support shaft to slide back and forth in the through hole of the rotating part according to the change in the compression amount of the two elastic elements, and perform horizontal movement compensation under the working condition where the gap between the two couplers is constantly changing, ensuring that the two couplers are always tightly fitted, further ensuring the instability of the electrical and air path connections of the two couplers. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 It is a structural schematic diagram of a coupler floating connection device;

[0036] Figure 2 It is a schematic diagram of the side structure of the floating connection device;

[0037] Figure 3 It is a side structural schematic diagram of the guiding process of the floating connection device;

[0038] Figure 4 A schematic diagram of the side structure after the floating connection device is guided;

[0039] Figure 5 It is a structural schematic diagram of the connection between the floating connection device and the mechanical coupler;

[0040] Figure 6 It is a schematic diagram of the structure of the bracket and the fixing seat from the first perspective;

[0041] Figure 7 A schematic diagram of the structure of the bracket and the fixing seat from a second perspective;

[0042] Figure 8It is a schematic diagram of the side structure of the fixing seat;

[0043] Fig. 9 It is a structural schematic diagram of a rotating part;

[0044] Fig.10 is a schematic diagram of the structure of the side support plate;

[0045] Fig.11 is a schematic diagram of the structure of the support shaft;

[0046] Fig.12 is a schematic diagram of the structure of the guide cone;

[0047] Fig.13 It is a structural schematic diagram of the bell mouth guide part;

[0048] Fig.14 It is a schematic diagram of the structure of the electric hook and air duct integrated assembly;

[0049] Wherein, the accompanying drawings are marked as follows:

[0050] 1. bracket; 11. bottom plate; 12. first side connecting piece; 13. second side connecting piece; 14. reinforcing part 1; 15. reinforcing part 2;

[0051] 2. bearing assembly; 21. fixed seat; 211. bearing mounting hole; 212. first elastic element guide countersunk hole; 213. bearing positioning surface; 214. second elastic element guide groove; 22. rotating member; 221. rotating part; 222. connecting part;

[0052] 3. Support assembly; 31. Side support plate; 32. Support shaft; 33. First elastic element; 311. Fixing block; 312. Guide member mounting hole;

[0053] 4. Guide cone;

[0054] 5. guide channel; 51. guide portion; 52. guide section; 53. positioning section;

[0055] 6. Buffer assembly; 61. Second elastic element; 62. Gland; 63. Fastener;

[0056] 7. Electric hook and air duct integrated assembly; 71. Electric car coupler; 72. Floating connection device connected to the hanging surface; 73. Air duct;

[0057] 8. Mechanical coupler. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0059] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0060] In the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0061] The technical solution of the present invention is described in detail below in conjunction with specific embodiments and the accompanying drawings.

[0062] As attached Figure 1 -Attached Fig.14 As shown, in an illustrative embodiment of a floating connection device of a coupler of the present invention, the floating connection device includes a bracket 1, a bearing assembly 2, a support assembly 3, a guide cone 4 and a guide channel 5.

[0063] The bracket 1 is fixedly connected above the mechanical coupler 8 and is used for installing the bearing assembly 2 and the support assembly 3 .

[0064] As attached Figure 6 -Attached Figure 7 As shown, the bracket 1 includes a rectangular bottom plate 11, a first side connecting member 12 and a second side connecting member 13; four mounting holes are opened on the rectangular bottom plate 11, and the bracket 1 is fixedly connected to the upper part of the mechanical coupler 8 by fastening elements such as screws and the mounting holes. The assembly relationship between the bracket 1 and the mechanical coupler 8 is shown in the attached figure. Figure 5 As shown. The first side connecting member 12 and the second side connecting member 13 are both L-shaped, and the two connecting members are relatively arranged at both ends of the length direction of the bottom plate 11. A reinforcing portion 14 is provided at the bending part of the two connecting members to enhance the overall strength of the bracket 1. The bottom plate 11 and the first side connecting member 12 and the second side connecting member 13 can be welded separately or bent as one piece.

[0065] The bearing assembly 2 includes two groups, and the two groups of bearing assemblies 2 are fixedly mounted on the first side connecting member 12 and the second side connecting member 13 respectively.

[0066] Each set of bearing components 2 includes a fixed seat 21 and a rotating member 22, wherein the fixed seat 21 is fixedly connected to the first side connecting member 12 or the second side connecting member 13, and a reinforcing portion 2 15 is provided between the fixed seat 21 and the two connecting members to enhance the connection strength between the fixed seat 21 and the connecting members. A bearing mounting hole 211 is provided on the fixed seat 21 and runs through the bearing seat body from front to back. The rotating member 22 is specifically a ball bearing, which is installed in the bearing mounting hole 211, and a circular through hole is provided on the rotating member 22.

[0067] The support assembly 3 includes two groups, and the two groups of support assemblies 3 are respectively installed on the two groups of bearing assemblies 2.

[0068] Each support assembly 3 includes a side support plate 31, a support shaft 32 and a first elastic element 33. The side support plate 31 is fixedly connected to the side of the electric hook 71. The two support assemblies 3 include two side support plates 31, which are respectively fixed to the left and right sides of the electric hook 71, and are used to clamp and fix the electric hook 71. One end of the support shaft 32 is fixedly connected to the side support plate 31, and the other end is slidably connected to the circular through hole of the rotating member 22. The first elastic member is a spring, which is sleeved on the outside of the support shaft 32, and its two ends are respectively in contact with the side support plate 31 and the fixed seat 21, and is used to provide support force for the support shaft 32 and the electric hook 71 connected thereto when the two hooks are not connected, to prevent the electric hook 71 from sagging, and to provide connection and tightening force for the two sets of floating connection devices relative to each other after the hooks are connected.

[0069] The guide cone 4 is convexly arranged on the side of the side support plate 31 facing the opposite electric car coupler 71, and is used as a guide male head. A circular guide member installation hole 312 is opened on the side support plate 31, and one end of the guide cone 4 is cylindrically arranged, inserted into the guide member installation hole 312 and welded to the side support plate 31. The middle part of the guide cone 4 is cylindrically arranged, and the diameter gradually decreases from the end connected to the side support plate 31 to the middle part. The diameter of the end part is relatively large, which mainly plays a positioning role, and the diameter of the middle part matches the inner diameter of the rear end positioning section 53 of the guide channel 5. The other end of the guide cone 4 forms a cone surface, and the angle of the cone surface matches the angle of the front end guide section 52 of the guide channel 5.

[0070] The guide channel 5 is arranged on the side support plate 31 and is used as a guide female head. The guide channel 5 includes a guide section 52 on the front side and a positioning section 53 on the rear side. The guide section 52 is conical, rectangular or any other opening shape that can cooperate with the guide cone 4 to have a guiding function; the positioning section 53 is cylindrical. After the conical surface of the guide cone 4 cooperates with the guide section 52 to complete the guidance, the guide cone 4 and the guide channel 5 continue to approach, so that the middle part of the guide cone 4 enters the cylindrical positioning section 53 and engages with the positioning section 53 to play a positioning role.

[0071] When the two hooks are automatically connected under the condition of a certain height difference, as the mechanical hook 8 approaches, the guide cone 4 of the hook on the opposite side is first guided by the guide section 52 on the front side of the guide channel 5, and then continues to pass through the guide channel 5 forward as the mechanical hook 8 approaches, forcing the support shaft 32 to retreat along the circular through hole of the rotating part 22, and the first elastic element 33 is compressed until the rear end of the guide channel 5 is engaged with the rear end of the guide cone 4 of the hook on the opposite side, and the connecting surfaces of the two opposite electrical hooks 71 are in contact to complete the connection.

[0072] During the guiding process, the guiding force generated between the relative guiding cones 4 and the guiding channels 5 is transmitted to the rotating member 22 via the respectively connected supporting shafts 32 and the first elastic member, forcing the respectively connected rotating members 22 to rotate a certain angle to achieve motion compensation. At this time, the first elastic member is compressed.

[0073] After the coupler is connected, when the vehicle is running, the electric coupler 71 can float in the up and down, left and right directions with the rotating part 22 as a fulcrum. At the same time, the through hole of the rotating part 22 can be used as a channel to control the sliding of the support shaft 32 in the through hole through the compression and release of the first elastic element 33 to compensate for the movement in the front and rear directions.

[0074] The floating connection device provided in this embodiment enables the connected electric coupler 71 to float in various directions such as up and down, left and right, etc. with the rotating member 22 as a fulcrum, thereby realizing the floating connection of the electric coupler 71, and then performing movement compensation in various directions during the automatic coupling process of the coupler. By utilizing the large rotation adjustment range of the ball bearing, the floating range of the electric coupler 71 in various directions is expanded, thereby enabling the locomotive and truck couplers to achieve automatic connection of the circuit even when the height difference between the two couplers is large.

[0075] After the couplers are connected, the two couplers will bounce relative to each other and move left and right. When the couplers bounce relative to each other, the height difference between the two couplers will further increase, and the maximum can reach 150mm. Under such height difference, if the floating connection device cannot perform corresponding action compensation, the electrical connection between the two couplers will be unstable. The floating connection device provided in this embodiment can also force the rotating member 22 to rotate a corresponding angle when the two couplers bounce relative to each other and move left and right, so as to achieve action compensation in various directions such as up, down, left and right after the connection, thereby avoiding the situation that the electrical and air path connection is unstable due to the relative bounce of the two couplers.

[0076] At the same time, after the couplers are connected, the connection gap between the two couplers changes continuously. The floating connection device provided in this embodiment connects the support shaft with the rotating member in a sliding manner, and an elastic element is arranged between the side support plate and the fixed seat, which can provide radial support force for the support shaft to prevent the support shaft and the connected electrical coupler and air duct from sagging, and can control the support shaft to slide back and forth in the rotating member according to the change in the compression amount of the first elastic element, and perform horizontal movement compensation under the working condition that the connection gap between the two couplers changes continuously, so as to ensure that the two couplers are always tightly fitted, and further ensure that the electrical and air duct connections of the two couplers are unstable.

[0077] In some embodiments of the present invention, as shown in the attached Figure 1 -Attached Figure 4 As shown, one end of the support shaft 32 installed in the through hole of the rotating member 22 passes through the through hole and extends toward the rear side of the fixing seat 21 .

[0078] The coupler floating connection device further includes a buffer assembly 6 , which includes a second elastic element 61 , a pressure cover 62 and a fastener 63 .

[0079] One end of the support shaft 32 passing through the through hole of the rotating member 22 passes through the second elastic element 61 and the pressure cover 62 in sequence, and is connected to the fastener 63. Among them, the second elastic element 61 is a spring, which is sleeved on the outside of the support shaft 32, and its two ends are respectively in contact with the fixed seat 21 and the pressure cover 62, which is used to provide a buffer force when the support shaft 32 rotates, reduce the impact, and further increase the movement space of the rotating member 22. The end of the support shaft 32 passing through the through hole of the rotating member 22 is provided with a threaded section, and the fastener 63 is fixedly connected to the support shaft 32 through the threaded section, and is in contact with the pressure cover 62 to prevent the pressure cover 62 from falling out. In this embodiment, the elastic force of the second elastic element 61 is less than the elastic force of the first elastic element 33.

[0080] In some embodiments of the present invention, in order to prevent the end of the second elastic element 61 abutting against the fixing seat 21 from shifting during the rotation of the support shaft 32, as shown in the attached Figure 6 -Attached Figure 8As shown, a second elastic element 61 guide groove 214 is provided on one side of the fixing seat 21 close to the pressure cover 62, and the second elastic element 61 abuts against the second elastic element 61 guide groove 214. In this embodiment, the guide groove is arranged in a circular ring shape, and its diameter matches the diameter of the second elastic element 61 to limit the second elastic element 61.

[0081] In some embodiments of the present invention, in order to prevent the end of the first elastic element 33 abutting against the fixed seat 21 from being displaced during the rotation of the support shaft 32, a first elastic element 33 guide countersunk hole 212 is opened on the side of the fixed seat 21 close to the side support plate 31, and the first elastic element 33 abuts against the first elastic element 33 guide countersunk hole 212. In this embodiment, the first elastic element 33 guide countersunk hole 212 is circular, connected to the bearing mounting hole 211, and its groove wall is stepped with the hole wall of the bearing mounting hole 211, and the diameter of the first elastic element 33 guide countersunk hole 212 matches the diameter of the first elastic element 33 to limit the first elastic element 33.

[0082] In some embodiments of the present invention, in order to expand the guiding range of the guiding channel 5, the two couplers can be automatically connected when the height difference is large. Figure 1 and attached Fig.13 As shown, a guide portion 51 protruding from the side support plate 31 is fixedly provided on the side of the guide channel 5 facing the opposite hook, and is used to serve as a guide section 52 of the guide channel 5 or to connect with the guide section 52 of the guide channel 5 to expand the guiding range of the guide channel 5.

[0083] As an embodiment of the present invention, the guide portion 51 includes a bell-mouth shell at the front end and a cylindrical shell at the rear end, and the cylindrical shell at the rear end is inserted into the guide member mounting hole 312 of the side support plate 31 and welded to the side support plate 31, wherein the bell-mouth shell serves as the guide section 52 of the guide channel 5, and the inclination angle of its bell mouth matches the cone surface angle of the guide cone 4 of the opposite side coupler, and the cylindrical shell serves as the positioning section 53 of the guide channel 5.

[0084] As another embodiment of the present invention, the guide portion 51 only includes a bell-mouth shell, which is fixed to the outside of the guide member installation hole 312 of the side support plate 31, and is connected with the guide member installation hole 312 of the side support plate 31 to form a guide channel 5. The bell-mouth shell serves as a guide section 52 of the guide channel 5, and the inclination angle of the bell mouth matches the cone surface angle of the guide cone 4 of the opposite side coupler. The guide member installation hole 312 of the side support plate 31 is arranged in a cylindrical tube shape, and is used as a positioning section 53 of the guide channel 5.

[0085] In some embodiments of the present invention, the bearing assembly 2 further includes a rotating part 221 and a connecting part 222. The rotating part 221 is specifically a ball, and the connecting part 222 is a circular ring shell, the outer ring of which is installed in the bearing mounting hole 211, and the inner side of the bearing mounting hole 211 is provided with a bearing positioning surface 213, the outer ring wall of the connecting part 222 is connected with the bearing positioning surface 213 by interference fit, and the inner ring is used to install the rotating member 22, and the inner ring wall is an arc surface, the curvature of the curved surface matches the curvature of the outer wall of the rotating part 221, and the inner ring wall surrounds to form an open rotating part accommodating cavity, and the rotating part 221 can be rotatably installed in the rotating part accommodating cavity.

[0086] In some embodiments of the present invention, as shown in the attached Fig.14 As shown, the floating connection device further includes an electric hook and air duct integrated component 7, which integrates an electric car hook 71 with a flip function and an air duct connector, which is located inside the electric hook and air duct integrated component 7, not shown in the figure. Among them, the tail of the air duct connector is connected to an air duct 73. The electric car hook 71 and the air duct 73 are integrated by the electric hook and air duct integrated component 7, so as to realize the synchronous connection of the circuits and air paths of the two vehicles.

[0087] The side support plate 31 is fixedly connected to the side wall of the electric hook and air duct integrated assembly 7 .

[0088] The end surface of the electric hook and air duct integrated assembly 7 facing the opposite hook is provided with a floating connection device connecting surface 72. When the electric hook 71 is in the connected state, the connecting surface is tightly fitted with the floating connection device connecting surface 72 of the opposite hook.

[0089] In some embodiments of the present invention, as shown in the attached Fig.10 As shown, in order to realize the connection between the side support plate 31 and the support shaft 32, a fixing block 311 is provided on one side where the side support plate 31 is connected to the support shaft 32, which is cylindrical and has a threaded hole in the center. A threaded section is provided at one end of the support shaft 32 connected to the side support plate 31, and the threaded section is matched and connected with the threaded hole in the center of the fixing block 311. Further, in order to facilitate the fastening installation of the support shaft 32 and the side support plate 31, a nut is provided at the end of the threaded section, and the nut is integrally arranged with the support shaft 32. At the same time, the diameter of the cylindrical fixing block 311 matches the diameter of the first elastic element 33. After assembly, the end of the first elastic element 33 close to the side support plate 31 is sleeved on the outside of the fixing block 311, so as to limit and fix the first elastic element 33 through the fixing block 311.

[0090] The assembly relationship of the floating connection device provided in a specific embodiment of the present invention is as follows:

[0091] The bracket 1 is used as the mounting base of the floating connection device, and is fixedly connected to the mechanical coupler 8 through the four mounting holes on the rectangular bottom plate 11, so that there is no relative movement between the bracket 1 and the mechanical coupler 8. The rotating member 22 is installed in the bearing mounting hole 211, and the connecting portion 222 thereof is interference fit with the bearing mounting hole 211. During the installation process, the axial positioning is performed through the bearing positioning surface 213.

[0092] Both side support plates 31 are provided with guide member mounting holes 312, and the guide cone 4 and the guide portion 51 are fixedly connected in the guide member mounting holes 312 of the two side support plates 31, respectively, and the two side support plates 31 are fixed on the left and right sides of the electric hook and air duct integrated assembly 7, respectively.

[0093] The front end of the support shaft 32 is connected to the fixed block 311 by threads, so that the support shaft 32 passes through the first elastic element 33, the rotating member 22, the second elastic element 61, the pressure cover 62 and is fixedly connected with the fastener 63 in sequence. The first elastic element 33 is installed between the side support plate 31 and the fixed seat 21, and the second elastic element 61 is installed between the fixed seat 21 and the pressure cover 62. After installation, the first elastic element 33 and the second elastic element 61 are both in a pre-compression state, which can provide radial spring force to play a supporting role and prevent the floating connection device from lowering its head, and both can provide axial spring force to keep the support shaft 32 in a balanced state in the through hole of the rotating member 22.

[0094] The two groups of side support plates 31 , the support shaft 32 , the first elastic element 33 , the second elastic element 61 , the rotating member 22 , and the pressure cover 62 connected to the same bracket 1 are symmetrically arranged.

[0095] The guiding process of the floating connection device provided by a specific embodiment of the present invention under the condition that there is a height difference between the couplers on both sides is as follows:

[0096] When there is a height difference between the two sets of couplers, as the mechanical coupler 8 approaches, the guide cone 4 in the floating connection device contacts the guide section 52 of the opposite guide channel 5, and the guide section 52 of the guide channel 5 contacts the guide cone 4 on the opposite side for guidance. The guiding force is transmitted to the rotating member 22 through the support shaft 32 and the first elastic element 33, forcing the rotating member 22 to rotate a certain angle to achieve motion compensation. During the guiding process, the first elastic element 33 and the second elastic element 61 are both radially deformed.

[0097] As the two hooks continue to approach, the guide cone 4 continues to penetrate the guide channel 5 of the opposite side support plate 31 forward, the support shaft 32 retreats along the circular through hole of the rotating part 22, and the first elastic element 33 is axially compressed. During the forward movement, the electric hook 71 with a flip-up function integrated in the electric hook and air duct integrated assembly 7 performs a flip-up action until the tail end of the guide cone 4 is engaged with the tail end of the guide channel 5 of the opposite hook, the connecting surface of the floating connection device and the connecting surfaces of the two opposite electric hooks 71 are fitted, and the air path and the circuit are automatically connected.

[0098] After the coupling, the axial compression of the first elastic element 33 is further increased, generating an axial spring force to force the coupling surface 72 of the floating coupling device to fit tightly. At this time, the floating coupling devices of the two couplers rely on the spring force of the first elastic element 33 and the positioning and matching of the guide cone 4 and the guide channel 5 to achieve a stable connection.

[0099] The action compensation process of the floating connection device provided by a specific embodiment of the present invention in the case of relative jumping, left-right displacement and change of the coupling gap after the two side hooks are connected is as follows:

[0100] When the couplers on both sides jump relative to each other, the height difference between the two couplers will further increase, and the floating connection device transmits force to the rotating member 22 through the guide cone 4 and the guide channel 5, forcing the rotating member 22 to rotate for motion compensation.

[0101] When the hooks on both sides shift left and right, the force is also transmitted to the rotating member 22 through the guide cone 4 and the guide channel 5, forcing the rotating member 22 to rotate to compensate for the movement.

[0102] When the clearance between the two hooks increases, the compression of the first elastic element 33 decreases, the compression of the second elastic element 61 increases, and the support shaft 32 slides forward in the through hole of the rotating member 22 to achieve motion compensation. At this time, the first elastic element 33 and the second elastic element 61 are still in a compressed state, and the first elastic element 33 generates an axial spring force to force the floating connection device connection surface 72 to fit.

[0103] When the clearance between the hooks on both sides becomes smaller, the compression of the first elastic element 33 increases, the compression of the second elastic element 61 decreases, and the support shaft 32 slides backward in the through hole of the rotating member 22 to achieve motion compensation. At this time, the first elastic element 33 and the second elastic element 61 are still in a compressed state, and the first elastic element 33 generates an axial spring force to force the floating connection device connection surface 72 to fit.

[0104] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0105] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A floating coupling device, characterized in that: include: A bracket, fixedly connected to the mechanical coupler; The bearing assembly comprises a fixed seat and a rotating member, wherein the fixed seat is fixedly mounted on the bracket and has a mounting hole; the rotating member can be rotatably mounted in the mounting hole and has a through hole; The support assembly comprises a side support plate, a support shaft and a first elastic member; the side support plate is connected to the electric car coupler; one end of the support shaft is connected to the side support plate, and the other end is slidably connected to the through hole; the first elastic member is sleeved on the outside of the support shaft, and the two ends thereof are respectively in contact with the side support plate and the fixing seat; A guide cone is convexly arranged on a side of the side support plate facing the opposite electric coupler; A guide channel is provided on the side support plate, and the guide channel is provided corresponding to the guide cone of the opposite side hook.

2. The floating coupling device according to claim 1, characterized in that: When the couplers are automatically connected, the guide cone of the opposite coupler contacts the inner wall of the guide channel, and after being guided by the guide channel, continues to pass through the guide channel forward, forcing the support shaft to slide in the through hole, and the first elastic element is compressed until the tail end of the guide channel is engaged with the tail end of the guide cone of the opposite coupler, and the connection surfaces of the two opposite electric couplers are in contact to complete the connection; During the guiding process, the guiding force generated between the guide cone of the opposite side hook and the guide channel is transmitted to the rotating member through the respectively connected support shaft and the first elastic member, driving the rotating member to rotate accordingly to achieve motion compensation.

3. The floating coupling device of claim 1, characterized in that: One end of the support shaft slidably connected to the through hole passes through the through hole; The coupler floating connection device further includes a buffer assembly, and the buffer assembly includes: A gland, fixed to one end of the support shaft passing through the through hole; The second elastic element is sleeved on the outer side of one end of the support shaft passing through the through hole, and its two ends are respectively abutted against the fixing seat and the pressure cover; the rigidity of the second elastic element is smaller than that of the first elastic element.

4. The floating coupling device of claim 3, characterized in that: A second elastic element guide groove is provided on one side of the fixing seat close to the second elastic element, and the second elastic element abuts against the second elastic element guide groove.

5. The floating coupling device of claim 1, characterized in that: A first elastic element guide countersunk hole is formed on one side of the fixing seat close to the first elastic element, and the first elastic element abuts against the first elastic element guide countersunk hole.

6. The floating coupling device of claim 1, characterized in that: A guide portion protruding from the side support plate is provided on the side of the guide channel facing the opposite hook, and the shape of the guide portion matches the conical surface shape of the guide cone of the opposite hook.

7. The floating coupling device of claim 1, characterized in that: The support comprises: Base plate; A first side connecting member and a second side connecting member are arranged at two ends of the bottom plate opposite to each other; the first side connecting member and the second side connecting member are arranged in an L-shape, and a reinforcing portion is arranged at the bending part of the first side connecting member and the second side connecting member; The first side connecting member and the second side connecting member are each connected with a group of bearing components and a support component; the guide cone and the guide channel are respectively arranged on two side support plates in the two groups of support components.

8. The floating coupling device of claim 1, characterized in that: The rotating member comprises a rotating part and a connecting part. The connecting part is interference-mounted in the bearing mounting hole. The connecting part is provided with a rotating part accommodating cavity. The rotating part can be rotatably mounted in the rotating part accommodating cavity.

9. The floating coupling device of claim 1, characterized in that: It further includes an electric hook and air duct integrated component; the electric hook and air duct integrated component integrates an electric car hook and an air duct connector, and the side support plate is fixedly connected to the side wall of the electric hook and air duct integrated component.

10. The floating coupling device of claim 1, characterized in that: A fixing block is provided on one side of the side support plate connected to the support shaft, and a threaded hole is provided at the center of the fixing block; A threaded section is provided on the outer wall of the support shaft, and the support shaft is connected with the threaded hole in the center of the fixing block through the threaded section.

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