Battery replacement robot lifting device

Abstract

The invention relates to a battery replacing robot lifting device which comprises a lifting mechanism and a lifting appliance mechanism installed below the lifting mechanism, and the lifting mechanism comprises a first rack, a plurality of winding drums installed on the first rack, a plurality of fixed pulleys, a driving mechanism driving the winding drums to rotate and a steel wire rope connected with the lifting appliance mechanism. The lifting appliance mechanism comprises a second rack and a plurality of movable double pulleys mounted on the second rack; and the steel wire rope is wound on the winding drum, the movable double pulleys and the fixed pulley respectively. According to the battery replacing robot lifting device, under the same stroke, the size of the lifting mechanism is relatively small, the size of a relative battery replacing station body is also reduced, the winding drum is installed in the width direction of the robot, the lifting point distance is large, the swing amplitude is relatively small, the safety performance is improved, and machining and on-site debugging and installation are convenient.

Description

Technical Field

[0001] The present invention relates to the field of battery swapping robots, and in particular to a lifting device for a battery swapping robot. Background Art

[0002] With the widespread promotion of the battery swapping mode and the large-scale market application of battery swapping heavy trucks, hoisting-type battery swapping stations have been put into market use. The lifting mechanism of the hoisting battery swapping robot: Some of the lifting mechanisms of the hoisting battery swapping robot use two drums and steel ropes on one side for lifting. In order to ensure synchronous lifting on both sides, the requirements for production and assembly are relatively high. Secondly, under the same stroke, its overall dimension is relatively large, resulting in a relatively larger size of the corresponding battery swapping station. In addition, the drums are installed in the length direction of the robot, and the distance between the lifting points is small, and the swing amplitude is relatively large. Summary of the Invention

[0003] In view of the above, it is necessary to provide a lifting device for a battery swapping robot with a large distance between lifting points and a small swing amplitude.

[0004] To this end, the present invention provides a lifting device for a battery swapping robot, including a lifting mechanism and a spreader mechanism installed below the lifting mechanism. The lifting mechanism includes a first frame, a plurality of drums, a plurality of fixed pulleys, a driving mechanism for driving the drums to rotate, and a steel rope connecting the spreader mechanism, which are respectively installed on the first frame. The spreader mechanism includes a second frame and a plurality of moving double pulleys installed on the second mechanism. The steel rope is respectively wound around the drums, the moving double pulleys and the fixed pulleys.

[0005] According to the lifting device for the battery swapping robot, a first drum and a second drum are arranged on the first frame, the first drum and the second drum are arranged in parallel along the axis direction, the first drum and the second drum are respectively provided with two groups of wire groove groups, each group of wire groove groups is adapted to a fixed pulley and a moving double pulley, the fixed pulley is arranged on the side of the first drum or the second drum, and the moving double pulley is arranged below between the fixed pulley and the first drum or the second drum.

[0006] According to the lifting device for the battery swapping robot, the wire groove group includes a left wire groove and a right wire groove, the wire groove directions of the left wire groove and the right wire groove are inclined towards the middle on one side of the fixed pulley, and the steel rope is sequentially wound around the left wire groove, one pulley of the moving double pulley, the fixed pulley, the other pulley of the moving double pulley and the right wire groove.

[0007] According to the lifting device for the battery swapping robot, the outside of the left wire groove is the wire inlet, and the outside of the right wire groove is the wire outlet.

[0008] According to the lifting device for the battery swapping robot, pressing blocks for fixing the steel rope are respectively arranged on the first drum and the second drum.

[0009] According to the battery swapping robot lifting device described above, the first reel and the second reel are arranged on both sides of the first rack in the length direction.

[0010] According to the battery swapping robot lifting device described above, the driving mechanism includes a driving motor and a gearbox. The output end of the driving motor is in transmission connection with the gearbox, and the output end of the gearbox is in transmission connection with the first reel or the second reel.

[0011] According to the battery swapping robot lifting device described above, a pressure sensor is arranged inside the fixed pulley.

[0012] According to the battery swapping robot lifting device described above, positioning columns are arranged at the upper end of the second rack, and guiding columns adapted to the positioning columns are arranged at the bottom of the first rack.

[0013] According to the battery swapping robot lifting device described above, a mounting seat is arranged on the first rack, and the driving mechanism is mounted on the mounting seat.

[0014] Compared with the prior art, the above-mentioned lifting device reduces the production and assembly requirements of the lifting mechanism, and under the same stroke, its overall dimensions are relatively small, and the dimensions of the corresponding battery swapping station body will also become smaller. This is conducive to saving materials and costs. In addition, the reels are arranged on both sides of the rack in the length direction, the distance between the hanging points is large, and the swing amplitude is relatively small. Description of the Drawings

[0015] In order to more clearly illustrate the specific implementation manners, the drawings required for use in the description of the implementation manners will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a side view of the battery swapping robot lifting device of the present invention.

[0017] Figure 2 It is a top view of the battery swapping robot lifting device of the present invention.

[0018] Figure 3 It is a schematic structural diagram of the reel of the battery swapping robot lifting device of the present invention.

[0019] Figure 4 It is a schematic winding structure diagram of the steel wire rope of the battery swapping robot lifting device of the present invention.

[0020] Figure 5 It is a schematic structural diagram of the driving mechanism of the battery swapping robot lifting device of the present invention.

[0021] Figure 6 It is a schematic diagram of the fixed pulley structure of the battery swapping robot lifting device of the present invention.

[0022] Figure 7 It is a schematic diagram of the moving double pulley structure of the battery swapping robot lifting device of the present invention.

[0023] Figure 8 It is a schematic diagram of the sling mechanism structure of the battery swapping robot lifting device of the present invention.

[0024] Figure 9 It is a schematic diagram of the working state of the battery swapping robot lifting device of the present invention.

[0025] Description of main component symbols

[0026] 1 - Lifting mechanism; 2 - Sling mechanism; 3 - First frame; 4 - Drum; 5 - Fixed pulley; 6 - Driving mechanism; 7 - Steel wire rope; 8 - Second frame; 9 - Moving double pulley; 10 - Groove winding group; 11 - Left groove; 12 - Right groove; 13 - Pressing block; 14 - Driving motor; 15 - Gearbox; 16 - Positioning column; 17 - Guide column.

[0027] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. Specific embodiments

[0028] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be described in detail below in conjunction with the drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention. The described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used herein in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0030] In each embodiment, for the convenience of description and not to limit the present invention, the term "connection" used in the specification and claims of the present invention is not limited to physical or mechanical connection, but may include electrical connection, whether direct or indirect. "Upper", "lower", "below", "left", "right", etc. are only used to represent relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0031] As shown Figures 1 to 9 in the figure, a lifting device for a battery swapping robot includes a lifting mechanism 1 and a sling mechanism 2 installed below the lifting mechanism 1. The lifting mechanism 1 includes a first frame 3, a plurality of winding drums 4 respectively installed on the first frame 3, a plurality of fixed pulleys 5, a driving mechanism 6 for driving the winding drums 4 to rotate, and a steel wire rope 7 connecting the sling mechanism 2. The sling mechanism 2 includes a second frame 8 and a plurality of movable double pulleys 9 installed on the second mechanism 8. The steel wire rope 7 is respectively wound around the winding drums 4, the movable double pulleys 9, and the fixed pulleys 5.

[0032] A first winding drum and a second winding drum are arranged on the first frame 3. The first winding drum and the second winding drum are arranged in parallel along the axis direction. The first winding drum and the second winding drum are respectively provided with two groups of wire groove groups 10. Each group of wire groove groups 10 is adapted to a fixed pulley 5 and a movable double pulley 9. The fixed pulley 5 is arranged on the side of the first winding drum or the second winding drum, and the movable double pulley 9 is arranged below between the fixed pulley 5 and the first winding drum or the second winding drum. A single winding drum 4 on one side can reduce the production and assembly requirements and is also beneficial to reducing the size of the mechanism. The fixed pulley 5 is used for winding and fixing the steel wire rope 7, and at the same time, it can reduce the lifting force and the force on a single steel wire rope 7. The movable double pulley 9 is used for connecting the steel wire rope 7 and the sling mechanism 2, and at the same time, it can reduce the lifting force, the force on a single steel wire rope 7, and reduce the swing amplitude of the sling mechanism 2.

[0033] The wire groove group 10 includes a left wire groove 11 and a right wire groove 12. The groove directions of the left wire groove 11 and the right wire groove 12 are inclined towards the middle on one side of the fixed pulley 5. The steel wire rope 7 is successively wound around the left wire groove 11, one pulley of the movable double pulley 9, the fixed pulley 5, the other pulley of the movable double pulley 9, and the right wire groove 12.

[0034] The outside of the left wire groove 11 is the wire inlet, and the outside of the right wire groove 12 is the wire outlet. For the wire winding mode of the steel wire rope 7, when lifting, the steel wire rope 7 converges towards the middle, and when descending, the steel wire rope 7 diverges towards both sides. When lifting and descending, because the descending distance and the wire groove pitch of the steel wire rope 7 are in equal ratio, the included angle between the steel wire rope 7 and the inlet of the movable double pulley 9 remains unchanged.

[0035] Pressing blocks 13 for fixing the steel wire rope 7 are respectively arranged on the first winding drum and the second winding drum.

[0036] The first winding drum and the second winding drum are arranged on both sides in the length direction of the first frame 3. A single winding drum 4 on one side compresses the design size. At the same time, the span of the hanging points is relatively large, which is beneficial to reducing the swing amplitude of the sling mechanism 2.

[0037] The driving mechanism 6 includes a driving motor 14 and a gearbox 15. The output end of the driving motor 14 is in transmission connection with the gearbox 15, and the output end of the gearbox 15 is in transmission connection with the first drum or the second drum. When the driving motor 14 rotates, it drives the gearbox 15, and the gearbox 15 drives the drum 4 to rotate, so as to achieve the purpose of lifting or lowering the spreader; at the same time, the gearbox 15 can appropriately reduce or increase the matching tooth number ratio, which is beneficial to adjusting the transmission ratio. The transmission of the gearbox 15 is safer and more reliable than the direct drive of the motor or the reducer.

[0038] A pressure sensor is provided inside the fixed pulley 5. A pressure sensor is added to the fixed pulley 5 to detect the broken rope and assist in positioning. When a pressure change is detected, it is determined that the lifting or lowering is in place, improving the safety performance.

[0039] Positioning columns 16 are provided at the upper end of the second frame 8, and guiding columns 17 adapted to the positioning columns 16 are provided at the bottom of the first frame 3.

[0040] Mounting seats are provided on the first frame 3, and the driving mechanism 6 is mounted on the mounting seats.

[0041] Working principle:

[0042] When the spreader needs to be lifted, the transmission mechanism of the gearbox 15 starts to rotate clockwise, driving the drum 4 to rotate clockwise. The drum 4 winds up the steel wire rope 7 upwards, and the steel wire rope 7 converges towards the middle. The steel wire rope 7 drives the moving double pulley 9 to rise to achieve the purpose of lifting the spreader.

[0043] When the spreader needs to be lowered, the transmission mechanism of the gearbox 15 starts to rotate counterclockwise, driving the drum 4 to rotate counterclockwise. The drum 4 winds down the steel wire rope 7, and the steel wire rope 7 spreads to both sides. The steel wire rope 7 drives the moving double pulley 9 to descend to achieve the purpose of lowering the spreader.

[0044] In several specific embodiments provided by the present invention, for those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to cover all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. In addition, obviously, the term "including" does not exclude other units or steps, and the singular does not exclude the plural. The terms such as first and second are used to represent names and do not represent any specific order.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that modifications or equivalent replacements can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A battery-swapping robot lifting device, characterized in that: It includes a lifting mechanism and a sling mechanism installed below the lifting mechanism, the lifting mechanism includes a first frame, a plurality of drums respectively installed on the first frame, a plurality of fixed pulleys, a driving mechanism for driving the drums to rotate and a wire rope connected to the sling mechanism, the sling mechanism includes a second frame and a plurality of movable double pulleys installed on the second mechanism, and the wire rope is respectively wound around the drums, the movable double pulleys and the fixed pulley.

2. The battery-swapping robot lifting device according to claim 1, characterized in that: The first frame is provided with a first reel and a second reel, and the first reel and the second reel are arranged parallel to the rotating axis direction. The first reel and the second reel are respectively provided with two groups of winding groove groups, and each group of winding groove groups is adapted to a fixed pulley and a movable double pulley. The fixed pulley is arranged on the side of the first reel or the second reel, and the movable double pulley is arranged at the lower part between the fixed pulley and the first reel or the second reel.

3. The battery-swapping robot lifting device according to claim 2, characterized in that: The winding groove group includes a left groove and a right groove, and the groove directions of the left groove and the right groove are inclined toward the middle on one side of the fixed pulley, and the wire rope is sequentially wound around the left groove, one pulley of the movable double pulley, the fixed pulley, the other pulley of the movable double pulley and the right groove.

4. The battery-swapping robot lifting device according to claim 3, characterized in that: The outer side of the left wire trough is a wire inlet, and the outer side of the right wire trough is a wire outlet.

5. The battery-swapping robot lifting device according to claim 2, characterized in that: The first drum and the second drum are respectively provided with a wire pressing block for fixing the steel wire rope.

6. The battery-swapping robot lifting device according to claim 2, characterized in that: The first reel and the second reel are arranged on both sides of the first frame in the length direction.

7. The battery-swapping robot lifting device according to claim 1, characterized in that: The driving mechanism comprises a driving motor and a gear box. The output end of the driving motor is drivingly connected to the gear box, and the output end of the gear box is drivingly connected to the first reel or the second reel.

8. The battery-swapping robot lifting device according to claim 1, characterized in that: A pressure sensor is arranged inside the fixed pulley.

9. The battery-swapping robot lifting device according to claim 1, characterized in that: A positioning column is provided at the upper end of the second frame, and a guide column matched with the positioning column is provided at the bottom of the first frame.

10. The battery-swapping robot lifting device according to claim 1, characterized in that: The first frame is provided with a mounting seat, and the driving mechanism is mounted on the mounting seat.

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