阅读说明：本技术 一种车辆换罐站用运输系统 (Transport system for vehicle tank changing station ) 是由 金源鸿 成波 于 2021-03-05 设计创作，主要内容包括：本发明涉及新能源汽车技术领域。目的在于提供一种高效、快捷的车辆换罐站用运输系统,包括轨道机构,以及设置在轨道机构上的换罐装置,所述轨道机构与车辆移动方向垂直；所述换罐装置包括设置在轨道机构上的、能够沿轨道机构往复移动的底板,设置在底板上方的顶板,设置在底板和顶板之间的升降机构,设置在顶板上的旋转台,以及设置在旋转台上方的罐体支承机构。本发明能够快速的实现对氢燃料罐的移动、举升、放下、旋转等动作,实现氢燃料罐的高效、快速更换。(The invention relates to the technical field of new energy automobiles. The transportation system comprises a track mechanism and a tank changing device arranged on the track mechanism, wherein the track mechanism is vertical to the moving direction of the vehicle; the tank changing device comprises a bottom plate, a top plate, a lifting mechanism, a rotating table and a tank body supporting mechanism, wherein the bottom plate is arranged on the track mechanism and can reciprocate along the track mechanism, the top plate is arranged above the bottom plate, the lifting mechanism is arranged between the bottom plate and the top plate, the rotating table is arranged on the top plate, and the tank body supporting mechanism is arranged above the rotating table. The invention can quickly realize the actions of moving, lifting, putting down, rotating and the like of the hydrogen fuel tank, and realize the high-efficiency and quick replacement of the hydrogen fuel tank.)

1. The utility model provides a vehicle trades transport system for jar station which characterized in that: the device comprises a track mechanism (6) and a tank replacing device arranged on the track mechanism (6), wherein the track mechanism (6) is vertical to the moving direction of a vehicle (0);

the tank changing device comprises a bottom plate (7) which is arranged on a track mechanism (6) and can reciprocate along the track mechanism (6), a top plate (8) arranged above the bottom plate (7), a lifting mechanism (9) arranged between the bottom plate (7) and the top plate (8), a rotating table (10) arranged on the top plate (8), and a tank body supporting mechanism (11) arranged above the rotating table (10).

2. The transportation system for a vehicle can change station according to claim 1, wherein: the track mechanism (6) comprises two guide rails (12) which are arranged side by side, and a plurality of bridging cross plates (13) used for connecting the two guide rails (12) are uniformly distributed between the two guide rails (12) along the length direction; a pair of U-shaped sliding blocks (14) which are matched with the guide rails (12), are reversely buckled on the guide rails (12) and are correspondingly arranged on the two guide rails (12);

the track mechanism (6) further comprises a track driving assembly for driving the sliding block (14) to move, the track driving assembly comprises a pair of synchronous wheels arranged at two ends of the guide rail (12), and a synchronous belt (15) extending along the length direction of the guide rail (12) is arranged between the synchronous wheels; the inner side of the sliding block (14) opposite to the top surface of the guide rail (12) is provided with a belt clamping plate for clamping a synchronous belt (15), and is connected with the synchronous belt (15) through the belt clamping plate; a moving servo motor (16) is arranged between one ends of the guide rails (12), output shafts are arranged at two ends of the moving servo motor (16), and two output shafts of the moving servo motor (16) are connected with synchronous wheels at one ends of the two guide rails (12) through two couplers (17);

the track mechanism (6) further comprises a moving plate (18) transversely arranged between the two guide rails (12) in a spanning mode, and two ends of the moving plate (18) are connected with the two sliding blocks (14) through bolts respectively.

3. The transportation system for a vehicle can change station according to claim 2, wherein: and a plurality of azimuth sensors (22) for detecting the positions of the sliding blocks (14) on the guide rail (12) are uniformly arranged on the inner surface of the guide rail (12) along the length direction of the guide rail (12).

4. The transportation system for a vehicle can change station according to claim 3, wherein: the azimuth sensor (22) is a contact sensor, the contact sensor is mounted on the guide rail (12) through a bolt, and the top of the contact sensor is provided with a contact head (23) which extends and retracts in the vertical direction; the contact body (24) is L-shaped, the upper section of the contact body (24) is fixed on the edge of the moving plate (18) through a bolt, and the lower section of the contact body (24) is opposite to a contact head (23) on the contact sensor.

5. The transportation system for a vehicle can change station according to claim 4, wherein: the lower end of the contact body (24) is provided with a drop-shaped contact part (25), and a contact head (23) of the contact sensor is provided with a contact wheel (26); the contact portion (25) is opposed to the contact wheel (26).

6. The transportation system for a vehicle can change station according to claim 5, wherein: the lifting mechanism (9) comprises an inner square pipe (27) arranged above the bottom plate (7) and an outer square pipe (28) sleeved outside the inner square pipe (27) and matched with the inner square pipe (27), and the upper end of the outer square pipe (28) is provided with a top plate (8); a central tube (29) is further arranged in the outer square tube (28), the upper end of the central tube (29) is fixedly connected with the outer square tube (28), and the central tube (29) penetrates through the inner square tube (27) and is in sliding fit with the inner square tube (27); still be provided with central screw rod (30) in interior side pipe (27), central screw rod (30) wear to establish in center tube (29) and constitute screw-thread fit with center tube (29), and the lower extreme of central screw rod (30) is connected with fixed elevator motor (31) that set up in interior side pipe (27) bottom.

7. The transportation system for a vehicle can change station of claim 6, wherein: the rotary table (10) comprises a base (37), the base (37) is fixedly arranged on the top plate (8), and an annular mounting groove (38) is formed in the upper surface of the base (37); the rotating platform (10) further comprises a rotating ring (39) matched with the mounting groove (38), the rotating ring (39) is arranged in the mounting groove (38) and is in running fit with the mounting groove (38), and the rotating ring (39) is in transmission connection with a rotating motor (40).

8. The transportation system for a vehicle can change station of claim 7, wherein: the output end of the rotating motor (40) is provided with a speed reducer and is in transmission connection with the rotating ring (39) through the speed reducer.

9. The transportation system for a vehicle can change station of claim 8, wherein: the tank body supporting mechanism (11) comprises a supporting plate (41), and at least one group of clamping and holding assemblies with semicircular clamping and holding areas are arranged on the supporting plate (41); the clamping and holding assembly comprises two groups of clamping and holding plate groups which are symmetrically arranged on two sides of the supporting plate, and a clamping and holding area is formed between the two groups of clamping and holding plate groups;

each clamping and holding plate group at least comprises two arc-shaped plate bodies (42) which are arranged side by side, a fixing notch (43) is arranged at the edge of the lower part of each arc-shaped plate body (42) close to the clamping and holding area, and a plurality of rubber contact strips (44) are arranged in the fixing notches (43) side by side.

10. The transportation system for a vehicle can change station of claim 9, wherein: two groups of clamping and holding assemblies are arranged on the supporting plate (41).

Technical Field

The invention relates to the technical field of new energy automobiles, in particular to a transportation system for a vehicle tank changing station.

Background

In recent years, the development of conventional fuel-powered vehicles has entered a bottleneck period, along with the supply pressure and environmental pollution problems caused by the combustion of conventional fossil energy. For this reason, energy-saving and environment-friendly hydrogen-fueled automobiles are increasingly being mentioned in recent years in anticipation of a clean energy prospect. At present, in the process of developing a hydrogen fuel automobile, the popularization rate of the hydrogen fuel battery automobile cannot be improved all the time due to the restriction of the problems of small number of the current hydrogen adding stations, remote set addresses, inconvenient hydrogen adding and the like. Hydrogen-fueled vehicles differ from conventional fuel-fueled vehicles in that the energy source is derived from highly compressed hydrogen, which makes it impossible to fuel directly as well as conventional fuel-fueled vehicles. However, at present, the technology in the field of replacing the hydrogen fuel gas tank is stopped at a theoretical stage, and the hydrogen fuel ring tank equipment and facilities which really have the production significance still have very large gaps in China at present, even if part of the tank equipment is replaced, the use of the equipment is very inconvenient, and the efficiency is low.

Disclosure of Invention

The invention aims to provide a high-efficiency and quick transportation system for a vehicle tank changing station.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: a transportation system for a vehicle tank changing station comprises a track mechanism and a tank changing device arranged on the track mechanism, wherein the track mechanism is vertical to the moving direction of a vehicle;

the tank changing device comprises a bottom plate, a top plate, a lifting mechanism, a rotating table and a tank body supporting mechanism, wherein the bottom plate is arranged on the track mechanism and can reciprocate along the track mechanism, the top plate is arranged above the bottom plate, the lifting mechanism is arranged between the bottom plate and the top plate, the rotating table is arranged on the top plate, and the tank body supporting mechanism is arranged above the rotating table.

Preferably, the track mechanism comprises two guide rails arranged side by side, and a plurality of bridging cross plates for connecting the two guide rails are uniformly distributed between the two guide rails along the length direction; a pair of U-shaped sliding blocks matched with the guide rails and reversely buckled on the guide rails are correspondingly arranged on the two guide rails;

the track mechanism also comprises a track driving component for driving the sliding block to move, the track driving component comprises a pair of synchronous wheels arranged at two ends of the guide rail, and a synchronous belt extending along the length direction of the guide rail is arranged between the synchronous wheels; the inner side of the sliding block, which is opposite to the top surface of the guide rail, is provided with a belt clamping plate for clamping the synchronous belt and is connected with the synchronous belt through the belt clamping plate; a moving servo motor is arranged between one ends of the guide rails, output shafts are arranged at two ends of the moving servo motor, and the two output shafts of the moving servo motor are connected with synchronous wheels at one ends of the two guide rails through two couplers;

the track mechanism further comprises a moving plate transversely arranged between the two guide rails in a spanning mode, and two ends of the moving plate are connected with the two sliding blocks through bolts respectively.

Preferably, a plurality of orientation sensors for detecting the position of the sliding block on the guide rail are uniformly arranged on the inner surface of the guide rail along the length direction of the guide rail.

Preferably, the azimuth sensor is a contact sensor, the contact sensor is mounted on the guide rail through a bolt, and the top of the contact sensor is provided with a contact head which extends and retracts in the vertical direction; the contact body is L-shaped, the upper section of the contact body is fixed on the edge of the moving plate through a bolt, and the lower section of the contact body is opposite to the contact head on the contact sensor.

Preferably, the lower end of the contact body is provided with a drop-shaped contact part, and a contact head of the contact sensor is provided with a contact wheel; the contact portion is opposite to the contact wheel.

Preferably, the lifting mechanism comprises an inner square pipe arranged above the bottom plate and an outer square pipe sleeved outside the inner square pipe and matched with the inner square pipe, and a top plate is arranged at the upper end of the outer square pipe; the outer square pipe is internally provided with a central pipe, the upper end of the central pipe is fixedly connected with the outer square pipe, and the central pipe penetrates through the inner square pipe and is in sliding fit with the inner square pipe; the inner square tube is also internally provided with a central screw rod, the central screw rod is arranged in the central tube in a penetrating way and forms thread fit with the central tube, and the lower end of the central screw rod is connected with a lifting motor fixedly arranged at the bottom of the inner square tube.

Preferably, the rotating table comprises a pedestal, the pedestal is fixedly arranged on the top plate, and the upper surface of the pedestal is provided with an annular mounting groove; the revolving stage still includes and rotates the ring with mounting groove matched with, rotatory ring setting constitutes normal running fit in the mounting groove and with the mounting groove, rotatory ring is connected with the rotating electrical machines transmission.

Preferably, the tank body supporting mechanism comprises a supporting plate, and at least one group of clamping assemblies with semicircular clamping areas are arranged on the supporting plate; the clamping and holding assembly comprises two groups of clamping and holding plate groups which are symmetrically arranged on two sides of the supporting plate, and a clamping and holding area is formed between the two groups of clamping and holding plate groups;

each clamping and holding plate group at least comprises two arc-shaped plate bodies which are arranged side by side, a fixing notch is arranged at the edge of the lower part of each arc-shaped plate body, which is close to the clamping and holding area, and a plurality of rubber contact strips are arranged side by side in each fixing notch.

Preferably, two groups of clamping and holding assemblies are arranged on the supporting plate.

The beneficial effects of the invention are concentrated and expressed as follows: the hydrogen fuel tank can be quickly moved, lifted, put down, rotated and the like, and the high-efficiency and quick replacement of the hydrogen fuel tank is realized. Specifically, in the using process of the tank changing device, the track mechanism moves to drive the tank changing device to move, so that the tank body moves horizontally; the tank body supporting mechanism of the tank changing device is used for realizing the placement of the tank body, and the lifting mechanism is used for realizing the ascending and descending of the tank body supporting mechanism, so that the lifting and the descending of the tank body are realized; the rotating platform is used for driving the tank body supporting mechanism on the rotating platform to rotate, and further the circumferential angle of the tank body can be adjusted.

Drawings

FIG. 1 is a schematic structural view of a vehicle tank change platform;

FIG. 2 is a schematic structural view of a preferred embodiment of the vehicle tank change platform;

FIG. 3 is a schematic structural view of a can change system;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is an enlarged view of portion B of FIG. 3;

FIG. 6 is a schematic structural view of the lifting mechanism;

FIG. 7 is a schematic view of the structure shown in FIG. 6 in one use state;

FIG. 8 is a schematic structural diagram of the turntable;

FIG. 9 is a schematic view of the installation of the alignment conveyor;

FIG. 10 is a schematic view of the structure shown in FIG. 9 in one use state;

FIG. 11 is a top view of the platform body;

FIG. 12 is a top view of the alignment conveyor;

FIG. 13 is a schematic structural view of a position-limiting table and a pushing block;

figure 14 is an isometric view of a stop block.

Detailed Description

Referring to fig. 1-14, a vehicle tank-changing platform mainly aims at a hydrogen fuel new energy automobile to perform tank-changing operation, and comprises an overhead platform main body 1 arranged on one side of a tank-changing station 00, a tank-changing system 2 for changing a gas tank of a vehicle 0 is arranged below the platform main body 1, and the tank-changing system 2 is a system for changing a tank as the name suggests, and has the functions of taking a hydrogen fuel tank 64 to be changed from the vehicle 0, sending the hydrogen fuel tank into the tank-changing station 00, acquiring a new hydrogen fuel tank 64 from the tank-changing station 00, and finally putting the new hydrogen fuel tank 64 into the vehicle 0. After the vehicle 0 is parked on the platform body 1, the tank change operation is performed by the tank change system 2. Be provided with the operation mouth 3 that supplies to trade jar system 2 operation on the platform main part 1, operation mouth 3 department is provided with the operating door 4 that can open and close, opens operating door 4 and can operate, generally operating door 4 is including setting up two sliding door leaf at 3 both sides of operation mouth, and two sliding door leaf withdraw from toward both sides, then open operation mouth 3, and two sliding door leaf fold toward the centre, then close operation mouth 3, through the isolation of operating door 4, only just open operation mouth 3 when trading the jar to prevent invasion such as sand lime dirt.

The tank changing station 00 of the present invention can be generally used in both fixed type and movable type, and when the fixed type tank changing station 00 is used, the situation is similar to the existing gas station, and a vehicle needing tank changing is driven to the tank changing station 00 to change the hydrogen fuel tank. Generally, in this case, the platform main body 1 is flush with the ground, a sunken foundation pit is arranged below the platform main body 1, the tank changing system 2 is located in the foundation pit, and the foundation pit and the like are planned and opened at the initial construction stage of the tank changing station 00. The other mode is a mobile tank changing station 00, as shown in fig. 2, the invention can be carried on a mobile tank changing truck for use, generally, in this case, the platform body 1 is a floating platform erected above the ground and arranged on a cargo box of the tank changing truck, and two ends of the platform body 1 are provided with slope surfaces 5 connected with the platform body 1 for the vehicles 0 to go in and out from two sides. In the case of a tanker having a relatively long length, two or more platform bodies 1 may be provided, with the tanker container corresponding to the change station 00 being located generally midway between the two platform bodies 1.

As shown in connection with fig. 3-5, the can change system 2, i.e. the transport system for the can change station of the vehicle, comprises a rail mechanism 6, and a can change device arranged on the rail mechanism 6, said rail mechanism 6 being perpendicular to the direction of movement of the vehicle 0. The tank changing device is mainly used for lifting, putting down, adjusting angles and the like of a tank body, and the rail mechanism 6 is mainly used for moving the tank changing device between the tank changing station 00 and the vehicle 0.

As shown in fig. 3, the can changer includes a bottom plate 7 provided on the rail mechanism 6 and capable of reciprocating along the rail mechanism 6, a top plate 8 provided above the bottom plate 7, a lifting mechanism 9 provided between the bottom plate 7 and the top plate 8, a rotary table 10 provided on the top plate 8, and a can body support mechanism 11 provided above the rotary table 10. The tank body supporting mechanism 11 is used for clamping and fixing the tank body, the rotating table 10 is used for adjusting the circumferential direction of the tank body, and the lifting mechanism 9 is used for lifting and lowering.

The track mechanism 9 of the present invention has many specific forms as long as it can function to drive the tank changing device to move on the track mechanism 9, for example: the track mechanism 9 comprises one or two guide tracks, a slidable can changing device is arranged on the guide tracks, and the drive is realized through a telescopic cylinder, a screw nut pair and the like. However, in order to simplify the overall structure and reduce the cost, it is preferable that the track mechanism 6 includes two guide rails 12 arranged side by side, and a plurality of bridging cross-bars 13 for connecting the two guide rails 12 are uniformly distributed between the two guide rails 12 along the length direction, as shown in fig. 3 and 5. The bridging horizontal plate 13 can strengthen the connection strength between the two guide rails 12, prevent the position deviation of the guide rails 12, generally, the bridging horizontal plate 13 can be directly bolted or welded on the guide rails 12, as also shown in fig. 3, the bridging horizontal plate 13 is positioned at the bottom of the guide rails 12, two ends of the bridging horizontal plate 13 are respectively provided with a U-shaped joint groove plate 20, and the joint groove plates 20 are respectively fixedly connected with the bridging horizontal plate 13 and the guide rails 12 through bolts, so as to have better overall structural strength and better assembly performance. As shown in fig. 5, a pair of U-shaped sliding blocks 14, which are engaged with the guide rails 12 and are reversely buckled on the guide rails 12, are correspondingly disposed on the two guide rails 12.

Of course, the light-emitting guide rail 12 and the sliding block 14 cannot meet the driving requirements, and therefore the track mechanism 6 further includes a track driving assembly for driving the sliding block 14 to move, the track driving assembly includes a pair of synchronizing wheels arranged at two ends of the guide rail 12, the two guide rails 12 are provided in the present invention, and the end portions of the two guide rails 12 are provided with four synchronizing wheels in total, in order to protect the synchronizing wheels, the synchronizing wheels are externally sleeved with wheel housings 19, and the wheel housings 19 are fixedly arranged at two ends of the guide rail 12. Be provided with the synchronous belt 15 that extends along guide rail 12 length direction between the synchronizing wheel, put simply, be provided with a rotatory synchronous belt 15 on each guide rail 12, the synchronizing wheel is walked around at the both ends of synchronous belt 15, drives synchronous belt 15 through the synchronizing wheel rotation and moves, and then utilizes synchronous belt 15 to drive the sliding block 14 motion. Therefore, the inner side of the sliding block 14 of the present invention, which is opposite to the top surface of the guide rail 12, is provided with a belt clamping plate for clamping the timing belt 15, and is connected to the timing belt 15 through the belt clamping plate. The arrangement and the specific structure of the belt clamping plate are well known to those skilled in the art, and are not described in detail in the present invention, and are not shown in the drawings.

Regarding the driving of the synchronous wheels, a mobile servo motor 16 is arranged between one ends of the guide rails 12, output shafts are arranged at two ends of the mobile servo motor 16, two output shafts of the mobile servo motor 16 are connected with the synchronous wheels at one ends of the two guide rails 12 through two couplers 17, and the servo motor 16 acts to drive the two synchronous wheels to do active motion at the same time so as to drive the two synchronous belts 15 to do active motion. The track mechanism 6 further comprises a moving plate 18 transversely spanned between the two guide rails 12, two ends of the moving plate 18 are respectively connected with the two sliding blocks 14 through bolts, and the moving plate 18 can be driven to move when the sliding blocks 14 move.

In addition, in order to effectively detect the operating condition of the moving servo motor 16, a rotary encoder 21 for detecting the motion state of the moving servo motor 16 is further arranged on the wheel shaft of one of the synchronous wheels. In order to effectively detect the moving distance of moving plate 18 on guide rail 12 and realize position feedback, a plurality of orientation sensors 22 for detecting the position of slide block 14 on guide rail 12 are uniformly arranged on the inner surface of guide rail 12 along the length direction of guide rail 12. The orientation sensor 22 may be a pressure detection sensor, a contact sensor, a magnetic force non-contact sensor, or the like, as long as the moving state of the moving plate 18 can be detected.

Here, as shown in fig. 5, the azimuth sensor 22 is a contact sensor that is mounted on the guide rail 12 by a bolt, and a contact head 23 that extends and contracts in the up-down direction is provided on the top of the contact sensor. And the contact body 24 is L-shaped, the upper section of the contact body 24 is fixed on the edge of the moving plate 18 through a bolt, and the lower section of the contact body 24 is opposite to the contact head 23 on the contact sensor. During the movement of the moving plate 18, the contact body 24 mounted thereon presses the contact head 23 of the contact sensor so as to be detected by the contact sensor, and in order to improve the smoothness of the contact, the lower end of the contact body 24 is provided with a droplet-shaped contact portion 25, and the contact head 23 of the contact sensor is provided with a contact wheel 26. The contact portion 25 is opposed to the contact wheel 26.

The lifting mechanism 9 of the invention is used for driving the top plate 8 and the rotating platform 10 arranged on the lifting mechanism, the tank body supporting mechanism 11 and the tank body to do up-and-down lifting movement. In order to achieve the above functions, the present invention may adopt many specific structural forms, for example: the lifting mechanism 9 can be an air cylinder, a hydraulic cylinder and the like, but the air cylinder and the hydraulic cylinder are heavy as a whole due to the fact that an air source or a hydraulic source needs to be arranged, and are inconvenient to move along with the track mechanism 12, therefore, a set of lifting mechanism 9 is developed, and the lifting mechanism 9 is compact and small in structure, good in action stability and high in accuracy.

As shown in fig. 6 and 7, the lifting mechanism 9 includes an inner tube 27 disposed above the bottom plate 7 and an outer tube 28 fitted to the inner tube 27 and fitted over the inner tube 27, and the top plate 8 is disposed at an upper end of the outer tube 28. Still be provided with the center tube 29 in the outer side pipe 28, the upper end of center tube 29 and outer side pipe 28 rigid coupling or the direct structure as an organic whole of the two, center tube 29 wears to establish in interior side pipe 27 and constitutes sliding fit with interior side pipe 27. In other words, the inner tube 27 is inserted into the outer tube 28, and the wall of the inner tube 27 is inserted between the wall of the outer tube 28 and the wall of the center tube 29 to slide up and down.

In the invention, a central screw 30 is further arranged in the inner square pipe 27, the central screw 30 is arranged in the central pipe 29 in a penetrating manner and forms thread fit with the central pipe 29, and the lower end of the central screw 30 is connected with a lifting motor 31 fixedly arranged at the bottom of the inner square pipe 27. When the lifting device is used, the lifting motor 31 acts to drive the central screw 30 to act, further drive the central pipe 29 to lift, the central pipe 29 drives the outer square pipe 27 to lift, and finally the top plate 8 and all parts arranged above the top plate 8 are driven to act. The lifting mechanism has double limiting between the central tube 29 and the inner square tube 27 and between the outer square tube 28 and the inner square tube 27, has better stability, and simultaneously adjusts the lifting height through the rotation of the central screw 30, thereby ensuring the lifting precision.

The height information of the sliding of the outer tube 28 on the inner tube 27 is directly converted and determined by the lifting motor 31 from the rotation speed of the zero point, of course, in order to determine the position of the zero point, that is, the position of the outer tube 28 when moving to the lowest end, a lifting sensor 32 for detecting the position of the outer tube 28 on the inner tube 27 is further provided on one side of the inner tube 27, and the lifting sensor 32 may be a pressure sensor, a contact sensor, etc., as long as it can feed back a signal to the overall control system when the outer tube 28 descends to the lowest position.

In addition, in order to ensure the smoothness of the threaded fit between the central screw 30 and the central tube 29 during the rotation process, a lubricating oil inlet 33 is further arranged on one side of the upper end of the outer square tube 28, and the lubricating oil inlet 33 is communicated with the central tube 29. When the lubricating oil self-lubricating device is used, lubricating grease is injected into the inner cavity of the central pipe 29 through the lubricating oil inlet 33, and a certain amount of lubricating grease can be dipped in each stroke of the central screw 30 to realize self-lubricating. In order to prevent the lubricating grease in the upper end of the central tube 29 from being pressed out from the lubricating grease inlet 33 during the relative movement between the central screw 30 and the central tube 29, a one-way valve 34 which is in one-way communication from the outside to the inside is arranged on the lubricating grease inlet 33. In addition, in order to further improve the lubricating effect on the lower end of the central screw 30, a central hole 35 is formed in the central screw 30, the central hole 35 extends from the lower part of the central screw 30 to the upper end surface of the central screw 30, and a lubricating hole 36 penetrating through the central hole 35 and the outer surface of the central screw 30 is formed in the side wall of the central screw 30. Lubricating grease can enter between the central screw 30 and the central tube 29 through the central hole 35 and the lubricating hole 36 in sequence, so that the central screw 30 is lubricated in the whole section.

For different models of vehicles 0, the installation positions of the tank bodies in the vehicles are different, and the parking positions have certain difference. In order to align the installation positions of the tank bodies, the top plate 8 is further provided with a rotating table 10, and the rotating table 10 can realize accurate rotation and further drive the tank bodies above to rotate. Of course, in order to make the rotary table 10 suitable for the installation of the lifting mechanism 9, the rotating motor 40 of the rotary table 10 according to the present invention is not suitable to be disposed at the axial center position of the rotary table 10, and for this reason, the rotary table 10 according to the present invention includes a base 37, the base 37 is fixedly disposed on the top plate 8, and the upper surface of the base 37 is provided with an annular installation groove 38. The rotating platform 10 further comprises a rotating ring 39 matched with the mounting groove 38, the rotating ring 39 is arranged in the mounting groove 38 and is in rotating fit with the mounting groove 38, and the rotating ring 39 is in transmission connection with a rotating motor 40. The rotating ring 39 of the present invention is used as a rotating component, because the weight of the hydrogen fuel tank mounted above the rotating ring 39 is large, it is usually necessary to match a speed reducer for increasing the torque of the rotating motor 40, the speed reducer 40 is mounted on the side surface of the outer square pipe 28, the speed reducer is mounted above the speed reducer 40, and the transmission is realized by engaging a transmission gear with the shaft teeth at the bottom of the rotating ring 39, of course, the transmission mode is not exclusive, as long as the torque of the speed reducer can be transmitted to the rotating ring 39. The rotary ring 39 is flange-connected to the tank support means 11.

As shown in fig. 4, the tank supporting mechanism 11 of the present invention includes a supporting plate 41, and at least one set of clamping assemblies having a semicircular clamping area is disposed on the supporting plate 41, as shown in fig. 4, two sets of clamping assemblies are provided, and in the case of a longer tank, more sets are possible. The clamping and holding assembly comprises two groups of clamping and holding plate groups which are symmetrically arranged on two sides of the supporting plate, and a clamping and holding area is formed between the two groups of clamping and holding plate groups. Each clamping and holding plate group at least comprises two arc-shaped plate bodies 42 which are arranged side by side, the arc-shaped plate bodies 42 can be directly welded with the supporting plate 41 to form an integral structure, and when welding, the bottom of each arc-shaped plate body 42 is provided with a linear installation edge and is welded on the supporting plate 41 through the installation edge. Of course, the support plate 41 and the arc-shaped plate 42 may be mounted on the support plate 41 by bolts.

The lower portion of the arc-shaped plate body 42 is provided with a fixing notch 43 close to the edge of the clamping area, and a plurality of rubber contact strips 44 are arranged in the fixing notch 43 side by side. That is, the contact surface of the arc-shaped plate 42 with the tank body is the inner edge of the arc-shaped plate at the position outside the fixing notch 43, and the area where the fixing notch 43 is located is in contact with the tank body through the rubber contact strip 44, and the plurality of rubber contact strips 44 can disperse the pressure of the contact surface of the tank body and realize flexible buffering, so that the outer surface of the tank body is prevented from being damaged. In the same way, in order to avoid the inner edge of the arc-shaped plate body 42 from damaging the tank body, the edge of the arc-shaped plate body 42 towards the clamping area is provided with a rubber filler strip 45.

According to the invention, through the arrangement of at least one group of clamping components, the stability of the tank body on the tank body supporting mechanism 11 can be effectively ensured, and the tank body is prevented from deviating and slipping. Simultaneously, this kind of multiaspect, the mode of embracing is pressed from both sides to the multiple spot, can disperse the clamp that the jar body surface received embrace stress, prevent that the jar body from receiving the damage, the flexible contact surface that constitutes jointly by rubber filler strip 45 and rubber contact strip 44 simultaneously can cushion and press from both sides and embrace stress, prevents jar body damage. The rubber contact strip 44 is a square strip, a round strip, a semicircular strip, or the like, as shown in fig. 4, and the rubber contact strip 44 is connected with the arc-shaped plate body 42 by bolts. The support plate 41 is provided at the center thereof with a flange 46 for connection to the rotary table 10, and is flange-connected to the rotary table 10 via the flange 46. In order to reduce the overall weight of the support plate 41, the support plate 41 is provided with lightening holes 47. In addition, an angle sensor 48 for detecting the rotation angle of the rotary table 10 is provided on the support plate 41. The angle sensor 48 detects the angle at which the rotary table 10 rotates the support plate 41, and thus the angle of the can body.

In addition to the above-described structure, since the parking position of the vehicle 0 on the platform main body 1 is affected by the driver's operation, there is a certain deviation in order to ensure the accuracy of the position of the vehicle 0 on the platform main body 1, particularly the accuracy of the front-rear position. As shown in connection with fig. 9-12, the present invention further includes a positioning device for achieving positional adjustment of the vehicle 0 on the platform body 1. The positioning device includes four tire indentations 49 provided on the platform body 1 and a position adjusting conveyor 50 provided at the bottom of the platform body 1. The tire notch 49 is generally in the shape of a strip extending along the length direction of the platform body 1, and has a certain adjustment margin on one hand and can meet the passing of the tire of the vehicle 0 on the other hand.

The adjusting conveyor 50 comprises two sets of crawler-type conveying assemblies 51 arranged side by side, the crawler-type conveying assemblies 51 are arranged along the length direction of the platform body 1, the tire notches 49 are located above the crawler-type conveying assemblies 51, and the tire notches 49 on the two sides of the platform body 1 are respectively opposite to the two sets of crawler-type conveying assemblies 51. That is, after the vehicle 0 is lifted up from the platform body 1, the four tires thereof are respectively located in the four tire notches 49 to form a general positioning, and after the vehicle 0 is parked in place, the vehicle 0 is essentially parked on the adjusting conveyor 50, and the adjusting conveyor 50 drives the vehicle to perform a precise adjustment.

Crawler-type conveying subassembly 51 can adopt traditional track conveyor, and crawler-type conveying subassembly 51 includes the athey wheel and around establishing the crawler belt body outside the athey wheel, is located and connects through first connecting rod 52 and second connecting rod 53 respectively between the athey wheel at platform main part 1 both ends, and the athey wheel rotates, drives the motion of the crawler belt body, and then drives the motion of vehicle 0 above that. In regard to the driving of the track wheels, the track wheels according to the present invention are connected to the positioning servo motor 54, and a moment-increasing reducer may be further provided between the positioning servo motor 54 and the track wheels due to the heavy weight of the vehicle 0 and the track transport assembly 51 itself. Meanwhile, in order to ensure synchronous rotation of the first connecting shaft rod 52 and the second connecting shaft rod 53, a first bevel gear 581 is arranged on each of the first connecting shaft rod 52 and the second connecting shaft rod 53, a linkage shaft 582 is arranged between the first connecting shaft rod 52 and the second connecting shaft rod 53, second bevel gears 583 are arranged at two ends of the linkage shaft 582, and the second bevel gears 583 are meshed with the first bevel gears 581.

In use, after the vehicle 0 is parked in place, the position of the vehicle 0 can be adjusted by the adjusting conveyor 50 to match the position of the hydrogen fuel tank 64 carried on the vehicle 0 with the tank changing system 2 arranged at the bottom of the platform body 1. The hydrogen fuel tank 64 is then replaced by a change-over system, and for the hydrogen fuel tanks 64 arranged side by side, the present invention also makes it possible to adjust the position of the vehicle 0 by adjusting the conveyor 50 so that a different hydrogen fuel tank 64 is opposed to the change-over system 2.

In addition, in order to prevent the crawler belt conveying assembly 51 from shaking too much without the vehicle 0 when being started or stopped and prevent the vehicle from slipping on the crawler belt body, a limiting table 55 is arranged on the crawler belt body corresponding to the tire notch 49 at least one end of the platform main body 1, and two limiting protrusions 56 protruding upwards are arranged at the front end and the rear end of the limiting table 55. After the vehicle 0 is parked, it is ensured that its tires fall on the stop 55. The limit table 55 may be directly bolted or welded to the track, and may be actually mounted on the platform body 1 and moved along with the track. As shown in fig. 13 and 14, sliding ribs 57 are provided on both sides of the stopper 55, and guide grooves are provided on the inner walls of the tire cutout 49 opposite to the sliding ribs 57, and the guide grooves need to be installed to ensure stability due to the heavy weight of the vehicle 0. The sliding edge 57 is fitted into the guide groove and is arranged in the guide groove. The bottom of the limiting table 55 is provided with an E-shaped clamping groove 59, and the crawler body is welded with a pushing block 60 matched with the clamping groove 59. When the device is used, the crawler body moves to drive the push block 60 to move, and the push block 60 drives the clamping groove 59 to move so as to drive the limiting table 55 to move.