Top hoisting battery replacing mechanism and battery replacing station

Abstract

The utility model discloses a top hoisting battery replacing mechanism and a battery replacing station, and relates to the technical field of battery replacing stations. Comprising a longitudinal guide rail and a Y-direction movement device which is connected to the longitudinal guide rail and moves in the Y direction along the longitudinal guide rail; the transverse guide rail is connected to the Y-direction movement device; the X-direction movement device is connected to the transverse guide rail and moves in the X direction along the transverse guide rail; the Z-direction lifting mechanism is connected to the X-direction moving device; the lifting appliance frame is connected with the Z-direction lifting mechanism; and the grasping mechanism is connected to the bottom of the lifting appliance frame, and the Z-direction lifting mechanism drives the grasping mechanism to ascend and descend. The battery replacing upper frame can be replaced through the X-direction movement device, the Z-direction lifting mechanism and the Y-direction movement device, in the whole process, a driver only needs to drive a vehicle into a battery replacing channel, the vehicle does not need to be parked under a grasping mechanism very accurately, parking errors are automatically repaired, the parking trouble of the driver is solved, and the battery replacing efficiency is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery swapping stations, in particular to a top-lifting battery swapping mechanism and a battery swapping station. Background Art

[0002] With the gradual acceleration of the electrification of construction machinery, electric wide-body mining dump trucks (hereinafter referred to as electric mining trucks) have become increasingly common products in major mines and sand and gravel quarries; pure electric battery swapping mining trucks can completely solve the problem of the power supply of pure electric mining trucks and will become the main force among pure electric mining trucks. Through the research and development of battery swapping battery packs and the development of top-lifting technology, the battery swapping efficiency can be improved to solve the problem of the power supply of battery swapping mining trucks.

[0003] In the existing battery swapping station, it is necessary to accurately locate the relative position of the electric mining truck in the battery swapping station. After the battery is retrieved by a crane and then moved to directly above the battery swapping base of the electric mining truck through a transfer component, the battery is driven to be docked with the electric mining truck and the battery compartment respectively. For example, in the patent with the application number 202220621195.1 and the name of battery swapping station, the battery swapping station body includes a box body, a battery swapping mechanism and at least one battery swapping channel. The battery swapping channel is arranged on the side of the box body, and a plurality of battery packs are arranged on the box body. The battery swapping mechanism is used to move between the box body and the battery swapping channel to pick up and place the battery pack between the box body and the electric vehicle. The battery swapping mechanism includes a frame body, a battery swapping trolley and a lifting unit. A part of the frame body is located inside the box body and is connected to the box body. Another part of the frame body is located above the battery swapping channel. The frame body includes a plurality of cross beams and a plurality of support columns. Tracks for the battery swapping trolley to travel are arranged on the cross beams, so that the battery swapping trolley can move between the battery swapping channel and the box body, thereby driving the lifting unit to perform battery swapping.

[0004] However, in the above solution, the battery swapping trolley can only drive the lifting unit to move in one direction along the track, which requires the driver to park the electric mining truck at a specified position, limiting the parking position and requiring the parking position to be very accurate, bringing battery swapping troubles to many vehicle owners. Summary of the Utility Model

[0005] In order to solve the problems of the existing technology, the utility model provides a top-lifting battery swapping mechanism and a battery swapping station.

[0006] On the one hand, a top-lifting battery swapping mechanism is provided, including:

[0007] Longitudinal guide rails,

[0008] A Y-direction movement device, connected to the longitudinal guide rails and moving in the Y direction along the longitudinal guide rails;

[0009] Transverse guide rails, connected to the Y-direction movement device;

[0010] The X-direction moving device is connected to the transverse guide rail and moves in the X direction along the transverse guide rail;

[0011] The Z-direction lifting mechanism is connected to the X-direction moving device;

[0012] The sling frame is connected to the Z-direction lifting mechanism;

[0013] The grasping mechanism is connected to the bottom of the sling frame, and the Z-direction lifting mechanism drives the grasping mechanism to lift.

[0014] Further, there are two longitudinal guide rails;

[0015] The Y-direction moving device includes:

[0016] Two moving longitudinal beams, each of which is rotatably connected with a first driving wheel and a first driven wheel at the bottom. The two moving longitudinal beams are respectively slidably connected to the two longitudinal guide rails through the first driving wheel and the first driven wheel;

[0017] The first driving device is connected to the two first driving wheels and is used for driving the two first driving wheels to rotate.

[0018] Further, the first driving device includes:

[0019] Two first couplings are respectively connected to the two first driving wheels, and the other ends of the first couplings are both connected with a first transmission shaft;

[0020] The first transmission shaft is connected to the first reduction gear through a second coupling, and the input end of the first reduction gear is connected to the first motor.

[0021] Further, there are two transverse guide rails, which are connected in parallel between the two longitudinal guide rails;

[0022] The X-direction moving device includes:

[0023] The transverse movement frame is rotatably connected with two second driving wheels and two second driven wheels at the bottom. One of the second driving wheels and the second driven wheel is connected to one of the transverse guide rails, and the other second driving wheel and the second driven wheel are connected to the other transverse guide rail;

[0024] The second driving device is connected to the two second driving wheels and is used for driving the two second driving wheels to rotate.

[0025] Further, the second driving device includes:

[0026] Two third couplings are respectively connected to the two second driving wheels, and the other ends of the third couplings are both connected with a second transmission shaft;

[0027] The second transmission shaft is connected to the second speed reducer through a fourth coupling, and the input end of the second speed reducer is connected to a second motor.

[0028] Furthermore, the Z-direction lifting mechanism includes:

[0029] A third speed reducer, connected to the X-direction moving device;

[0030] A lifting drive motor, the output end of which is connected to the input end of the third speed reducer;

[0031] Two rope winding wheels, coaxially connected to both ends of the output shaft of the third speed reducer;

[0032] Two steel wire ropes, one end of each is respectively connected to the rope winding wheels;

[0033] Two guiding pulleys, connected to the top of the spreader frame, and the other ends of the steel wire ropes respectively bypass the guiding pulleys and are connected to the X-direction moving device.

[0034] Furthermore, a guiding sleeve is connected to the bottom of the X-direction moving device, and a guiding pin is connected to the top of the spreader frame, and the guiding pin is located inside the guiding sleeve.

[0035] Furthermore, a lifting limit block is connected to the bottom of the spreader frame.

[0036] Furthermore, a laser guiding device is connected to the bottom of the spreader frame.

[0037] On the other hand, a power exchange station is provided, which includes the top hoisting power exchange mechanism described above, and also includes a power exchange cabin, and the longitudinal guide rail of the top hoisting power exchange mechanism is connected to the girder of the power exchange cabin.

[0038] The beneficial effects of the technical solution provided by the present utility model are as follows: In the present utility model, a longitudinal guide rail is provided, a Y-direction moving device is connected to the longitudinal guide rail, the Y-direction moving device is connected to a transverse guide rail, an X-direction moving device is connected to the transverse guide rail, a Z-direction lifting mechanism is connected to the X-direction moving device, a spreader frame is connected to the bottom of the Z-direction lifting mechanism, and a grasping mechanism is connected to the spreader frame. During power exchange, the vehicle enters the power exchange channel of the power exchange cabin, the Y-direction moving device drives the spreader frame to slide left and right along the longitudinal guide rail, the X-direction moving device drives the spreader frame to slide back and forth along the transverse guide rail, and the Z-direction lifting mechanism drives the spreader frame to lift, so as to grab the power exchange upper frame through the grasping mechanism to replace the battery pack. In the whole process, the driver only needs to drive the vehicle into the power exchange channel, without having to park very precisely directly below the grasping mechanism, and the parking error can be automatically corrected, solving the parking trouble of the driver and also improving the power exchange efficiency. Description of the Drawings

[0039] Figure 1 It is a schematic structural diagram of a top-mounted hoisting battery swapping mechanism provided by the present utility model;

[0040] Figure 2 It is a side view of a top-mounted hoisting battery swapping mechanism provided by the present utility model;

[0041] Figure 3 It is a side view of a top-mounted hoisting battery swapping mechanism provided by the present utility model;

[0042] Figure 4 It is a schematic structural diagram of an X-direction movement device and a Z-direction lifting mechanism provided by the present utility model;

[0043] Figure 5 It is a schematic structural diagram of a spreader frame provided by the present utility model;

[0044] Figure 6 It is a schematic structural diagram of a battery swapping station provided by the present utility model;

[0045] Figure 7 It is a side view of a battery swapping station provided by the present utility model.

[0046] Reference numerals: 1 - longitudinal guide rail; 2 - transverse guide rail; 3 - spreader frame; 4 - gripping mechanism; 5 - moving longitudinal beam; 6 - first driving wheel; 7 - first driven wheel; 8 - first coupling; 9 - first transmission shaft; 10 - second coupling; 11 - first speed reducer; 12 - first motor; 13 - transverse movement frame; 14 - second driving wheel; 15 - second driven wheel; 16 - third coupling; 17 - second transmission shaft; 18 - fourth coupling; 19 - second speed reducer; 20 - second motor; 21 - third speed reducer; 22 - lifting drive motor; 23 - rope winding wheel; 24 - steel wire rope; 25 - guiding pulley; 26 - guiding sleeve; 27 - guiding pin; 28 - lifting limit block; 29 - laser guiding device; 30 - battery swapping cabin; 31 - battery swapping channel. Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0048] To make the purpose, technical solutions and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below in conjunction with the accompanying drawings.

[0049] It should be noted that in this embodiment, the orientation or positional relationship indicated by "bottom", "top", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0050] It should also be noted that in this embodiment, unless otherwise clearly specified and limited, the terms "set" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] Embodiment 1

[0052] Refer to Figures 1 - 5 , a top-lifting battery swapping mechanism, which includes a longitudinal guide rail 1 connected to the top girder of the battery swapping cabin of the battery swapping station. A Y-direction movement device is slidably connected to the longitudinal guide rail 1, and the Y-direction movement device can move in the Y direction along the longitudinal guide rail 1, that is, move in the length direction of the battery swapping cabin; a transverse guide rail 2 is connected to the longitudinal guide rail 1, the transverse guide rail 2 is perpendicular to the longitudinal guide rail 1, and an X-direction movement device is slidably connected to the transverse guide rail 2, and the X-direction movement device can move in the X direction along the transverse guide rail 2, that is, move in the width direction of the battery swapping cabin; a Z-direction lifting mechanism is connected to the bottom of the X-direction movement device, a sling frame 3 is connected to the bottom of the Z-direction lifting mechanism, and a gripping mechanism 4 is connected to the bottom of the sling frame 3. The gripping mechanism 4 is used to grip the battery swapping base, and the Z-direction lifting mechanism can drive the sling frame 3 to lift and lower.

[0053] During battery swapping, when the vehicle arrives at the battery swapping station, it enters the battery swapping passage of the battery swapping cabin. After the battery swapping base of the vehicle is unlocked, the Y-direction movement device slides along the longitudinal guide rail 1 to directly above the vehicle. According to the position of the battery swapping base on the vehicle, the X-direction movement device slides back and forth along the transverse guide rail 2, so that the spreader frame 3 is located directly above the upper frame of the battery swapping. Then, the Z-direction lifting mechanism descends, and the spreader frame 3 is lowered onto the upper frame of the vehicle-mounted battery swapping and grabbed by the grasping mechanism 4. It is placed on the empty charging seat in the station through the X-direction movement device, Z-direction lifting mechanism, and Y-direction movement device. A full-charged battery's upper frame of the battery swapping is grabbed, and it is lowered onto the vehicle-mounted battery swapping base in the same way. The locking mechanism of the battery swapping base works and automatically locks. After the vehicle's self-inspection is correct, it drives away from the battery swapping station. In the whole process, the driver only needs to drive the vehicle into the battery swapping passage, without having to park very precisely directly below the grasping mechanism. The parking error is automatically corrected through the X-direction movement device and Y-direction movement device, solving the driver's parking trouble and improving the battery swapping efficiency.

[0054] Further, there are two longitudinal guide rails 1, which are fixedly connected in parallel in the beam of the battery swapping cabin of the battery swapping station. The Y-direction movement device includes: two moving longitudinal beams 5. At both ends of the bottom of the moving longitudinal beam 5, a first driving wheel 6 and a first driven wheel 7 are respectively rotatably connected. The two moving longitudinal beams 5 are respectively slidably connected to the two longitudinal guide rails 1 through the first driving wheel 6 and the first driven wheel 7. The positions of the first driving wheels 6 of the two moving longitudinal beams 5 correspond to each other. On the opposite sides of the hubs of the two first driving wheels 6, a first transmission shaft 9 is connected through a first coupling 8. The two first transmission shafts 9 are further connected to the output end of a first reduction gear 11 through a second coupling 10, and are symmetrically distributed at both ends. The input end of the first reduction gear 11 is connected to a first motor 12. Power input is provided through the first motor 12, and the two first driving wheels 6 are simultaneously driven through the first reduction gear 11, so that the Y-direction movement device can move along the longitudinal guide rail 1.

[0055] Further, there are two transverse guide rails 2, which are fixedly connected in parallel between the two longitudinal guide rails 1. The transverse guide rail 2 is perpendicular to the longitudinal guide rail 1. The X-direction movement device includes: a rectangular transverse movement frame 13, with two second driving wheels 14 and two second driven wheels 15 rotatably connected to the bottom. One of the second driving wheels 14 and the second driven wheel 15 are connected to one of the transverse guide rails 2, and the other second driving wheel 14 and the second driven wheel 15 are connected to the other transverse guide rail 2. On the opposite sides of the hubs of the two second driving wheels 14, a second transmission shaft 17 is connected through a third coupling 16. The other end of the second transmission shaft 17 is connected to the output end of a second reduction gear 19 through a fourth coupling 18, and is symmetrically distributed at both ends. The input end of the second reduction gear 19 is connected to the input end of a second motor 20. Power input is provided through the second motor 20, and then the two second driving wheels 14 are simultaneously driven through the second reduction gear 19, so that the X-direction movement device can move along the transverse guide rail 2.

[0056] Further, the Z-direction lifting mechanism includes: a third speed reducer 21 and a lifting drive motor 22. The third speed reducer 21 is fixedly connected to the middle of the crossbeam in the middle of the transverse movement frame 13. Symmetrically distributed rope winding wheels 23 are coaxially fixed at both ends of the output shaft of the third speed reducer 21. The input end of the third speed reducer 21 is connected to the output end of the lifting drive motor 22. Two guiding pulleys 25 are rotatably connected to the top of the spreader frame 3. A steel wire rope 24 is connected to each of the rope winding wheels 23. The other end of the steel wire rope 24 respectively bypasses the guiding pulley 25 and is connected to the transverse movement frame 13. When the spreader frame 3 needs to descend, the lifting drive motor 22 provides power input, and then drives the rope winding wheels 23 to rotate simultaneously through the third speed reducer 21, the steel wire rope 24 is lengthened, driving the spreader frame 3 to descend. When the spreader frame 3 needs to ascend, the lifting drive motor 22 provides power input, and then drives the rope winding wheels 23 to rotate in the opposite direction through the third speed reducer 21, the steel wire rope 24 is wound up, driving the spreader frame 3 to ascend.

[0057] Further, two guiding sleeves 26 are connected to the bottom of the transverse movement frame 13, and two guiding pins 27 are connected to the top of the spreader frame 3. The guiding sleeves 26 are located directly above the guiding pins 27, and the guiding pins 27 are located inside the guiding sleeves 26. The guiding sleeves 26 and the guiding pins 27 can effectively reduce the swaying amount of the spreader frame 3 during lifting and lowering.

[0058] Further, a lifting limit block 28 is connected to the bottom of the spreader frame 3. When the lifting limit block 28 touches the top of the battery swapping upper frame, it indicates that the spreader frame 3 has descended in place, achieving the purpose of limiting during the descending process.

[0059] Further, laser guiding devices 29 are connected to the four corners of the bottom of the spreader frame 3. The laser guiding devices 29 can, for example, include a laser emitter and a laser receiver. The laser guiding devices 29 can be used to project laser in the vehicle battery swapping upper frame for positioning, so as to carry out the replacement work of the battery swapping upper frame.

[0060] It should be noted that there can be four gripping mechanisms 4, which are respectively connected to the opposite sides of the bottom of the spreader frame 3. The gripping mechanism 4 is a device for gripping the battery swapping upper frame or the battery pack in the prior art. Here, an example of its structure is described. The gripping mechanism 4 can include a gripping drive motor, and the output end is connected to a gripping hook. A locking groove can be provided on the battery swapping upper frame. When the battery swapping upper frame needs to be gripped, the gripping drive motor drives the gripping hook to rotate, and the gripping hook is inserted into the locking groove. The gripping hook is in a locked state, and the gripping action on the battery swapping upper frame is realized through the clamping fit between the locking hook and the locking groove.

[0061] Embodiment 2

[0062] See Figure 6 and Figure 7, A battery swapping station, comprising a battery swapping cabin 30 and the top lifting battery swapping mechanism in the first embodiment. Two longitudinal guide rails 1 of the top lifting battery swapping mechanism are fixedly arranged in parallel in the girder of the battery swapping cabin 30 of the battery swapping station. A battery swapping passage 31 is arranged on the battery swapping cabin 30, and a battery charging bin is arranged inside.

[0063] For a vehicle that needs to have its battery replaced, after the vehicle arrives at the battery swapping station and enters the battery swapping passage 31, after the battery swapping base is unlocked, the Y-direction moving device slides along the longitudinal guide rail 1 to directly above the vehicle. According to the position of the battery swapping base on the vehicle, the X-direction moving device slides back and forth along the transverse guide rail 2, so that the hoist frame 3 is directly above the battery swapping upper frame. Then the Z-direction lifting mechanism descends and lands on the vehicle-mounted battery swapping upper frame and grabs it through the grasping mechanism 4. It is placed on an empty charging seat in the station through the X-direction moving device, the Z-direction lifting mechanism and the Y-direction moving device. A battery swapping upper frame with a fully charged battery is grabbed and landed on the vehicle-mounted battery swapping base through the same method. The locking mechanism of the battery swapping base works and automatically locks. After the vehicle self-checks and is error-free, it drives away from the battery swapping station. In the whole process, the driver only needs to drive the vehicle into the battery swapping passage and does not need to park very precisely directly below the grasping mechanism. The parking error is automatically corrected through the X-direction moving device and the Y-direction moving device, solving the parking trouble of the driver. It takes about 5 minutes, and the battery swapping efficiency can meet the daily operation requirements of engineering vehicles.

[0064] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A top-mounted power exchange mechanism, characterized in that: include: Longitudinal guide rail (1), A Y-direction moving device connected to the longitudinal guide rail (1) and moving in the Y direction along the longitudinal guide rail (1); A transverse guide rail (2) connected to the Y-direction motion device; An X-direction motion device, connected to the transverse guide rail (2) and capable of moving in the X direction along the transverse guide rail (2); A Z-direction lifting mechanism connected to the X-direction motion device; A sling frame (3) connected to the Z-direction lifting mechanism; The gripping mechanism (4) is connected to the bottom of the sling frame (3), and the Z-direction lifting mechanism drives the gripping mechanism to move up and down.

2. The top-mounted power exchange mechanism according to claim 1, characterized in that: The longitudinal guide rail (1) For two; The Y-direction motion device comprises: Two movable longitudinal beams (5), each of which is rotatably connected to a first driving wheel (6) and a first driven wheel (7) at the bottom, and the two movable longitudinal beams (5) are respectively slidably connected to the two longitudinal guide rails (1) via the first driving wheel (6) and the first driven wheel (7); The first driving device is connected to the two first driving wheels (6) and is used to drive the two first driving wheels (6) to rotate.

3. The top-mounted power exchange mechanism according to claim 2, characterized in that: The first driving device comprises: Two first couplings (8) are respectively connected to the two first driving wheels (6), and the other ends of the first couplings (8) are connected to the first transmission shaft (9); The first transmission shaft (9) is connected to a first reducer (11) via a second coupling (10); an input end of the first reducer (11) is connected to a first motor (12).

4. The top-mounted power exchange mechanism according to claim 3, characterized in that: The transverse guide rails (2) are two in number and are connected in parallel between the two longitudinal guide rails (1); The X-direction motion device comprises: A transverse frame (13) having two second driving wheels (14) and two second driven wheels (15) rotatably connected at the bottom, wherein one of the second driving wheels (14) and the second driven wheel (15) is connected to one of the transverse guide rails (2), and the other of the second driving wheels (14) and the second driven wheel (15) is connected to the other transverse guide rail (2); The second driving device is connected to the two second driving wheels (14) and is used to drive the two second driving wheels (14) to rotate.

5. The top-mounted power exchange mechanism according to claim 4, characterized in that: The second driving device comprises: Two third couplings (16), respectively connected to the two second driving wheels (14), and the other ends of the third couplings (16) are connected to the second transmission shaft (17); The second transmission shaft (17) is connected to a second reducer (19) via a fourth coupling (18), and an input end of the second reducer (19) is connected to a second motor (20).

6. The top-mounted power exchange mechanism according to claim 1, characterized in that: The Z-direction lifting mechanism comprises: a third speed reducer (21), connected to the X-direction motion device; A lifting drive motor (22), the output end of which is connected to the input end of the third reducer (21); Two rope winding wheels (23) are coaxially connected to two ends of the output shaft of the third reducer (21); Two steel wire ropes (24), one end of which is respectively connected to the rope winding wheel (23); Two guide pulleys (25) are connected to the top of the sling frame (3), and the other ends of the steel wire ropes (24) are respectively passed around the guide pulleys (25) and connected to the X-direction motion device.

7. The top-mounted power exchange mechanism according to claim 6, characterized in that: A guide sleeve (26) is connected to the bottom of the X-axis motion device, and a guide pin (27) is connected to the top of the hanger frame (3), and the guide pin (27) is located in the guide sleeve (26).

8. The top-mounted power exchange mechanism according to claim 1, characterized in that: A lifting and lowering limit block (28) is connected to the bottom of the sling frame (3).

9. The top-mounted power exchange mechanism according to claim 1, characterized in that: A laser guiding device (29) is connected to the bottom of the sling frame (3).

10. A battery swap station, characterized in that: It comprises the top-mounted power exchange mechanism as described in any one of claims 1 to 9, and also comprises a power exchange cabin (30), wherein the longitudinal guide rail (1) of the top-mounted power exchange mechanism is connected to the beam of the power exchange cabin (30).

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