Working device for battery replacement and vehicle for battery replacement

Abstract

The utility model relates to a working device for battery replacement, in order to solve the problem of low battery replacement efficiency of electric engineering machinery during field operation battery replacement, the utility model provides a working device for battery replacement and a vehicle for battery replacement, a rotary device of the working device comprises a base and a rotary table, and the rotary table is rotatably mounted on the base; a basic arm of the telescopic arm assembly is hinged to the rotary table through a horizontal pin shaft, and a lifting oil cylinder for pushing the telescopic arm assembly to ascend and descend is arranged between the rotary table and the basic arm. The accessory comprises a connecting base installed on the front portion of the tail telescopic arm, a transverse swing frame connected to the front side of the connecting base through a transverse swing driving mechanism, and a transverse sliding frame arranged on the front side of the transverse swing frame in a sliding mode through a transverse sliding driving mechanism. The vertical swing frame is connected to the front side of the transverse sliding frame through a vertical swing driving mechanism; and the quick-changing device is mounted on the front side of the vertical swing frame and is connected with a battery. According to the working device for battery replacement, the requirement of battery replacement on a site can be reduced, and the site adaptability and the battery replacement efficiency are improved.

Description

Technical Field

[0001] The utility model relates to a working device, and more specifically, to a working device for battery replacement and a vehicle for battery replacement. Background Art

[0002] With the improvement of electric technology and the reduction of power battery costs, more and more engineering machinery products are driven by power batteries. The use of power batteries has the advantages of lower TCO and more environmental protection. However, the problem of power battery recharge restricts the development of power battery driven equipment, and the recharge method of replaceable power batteries has become one of the effective solutions to solve the problem of recharging electric drive engineering machinery products. Truck battery replacement can be completed in a battery replacement station, but the working scenes of engineering machinery products change quickly, the product driving speed is slow, the appearance varies greatly, and the cost of building a battery replacement station is high; especially when constructing relatively suburban construction sites, power battery replacement has become a difficulty in the industry.

[0003] When replacing batteries on construction machinery at the work site, they are usually replaced by a battery replacement truck or forklift. A lifting device is required when replacing batteries with a battery replacement truck. Lifting devices and forklifts can usually only move the power battery up and down and horizontally. The ability to adjust the posture of the power battery during the battery replacement process is weak, and the battery replacement site requirements are high. The scene applicability is poor and the battery replacement efficiency is low. Utility Model Content

[0004] The technical problem to be solved by the utility model is the low efficiency of battery replacement of electric engineering machinery during field operation, and a working device for battery replacement and a vehicle for battery replacement are provided.

[0005] The utility model provides a technical solution to achieve its purpose: a working device for power replacement, which includes: accessories and:

[0006] A rotary device, comprising a base and a rotary table, wherein the rotary table is mounted on the base through a rotary drive mechanism; the rotary drive mechanism comprises a rotary bearing whose outer ring and inner ring are respectively fixedly connected to the rotary table and the base, and a rotary drive device for driving the outer ring to rotate relative to the inner ring;

[0007] A telescopic arm assembly, comprising a basic arm and at least one section of the telescopic arm, wherein the telescopic arm is telescopically sleeved in the basic arm, the basic arm is hinged to the turntable through a horizontal pin, and a lifting cylinder for lifting the telescopic arm assembly is provided between the turntable and the basic arm;

[0008] The accessories include:

[0009] A connecting seat is installed at the front of the last telescopic arm;

[0010] A sway frame connected to the front side of the connecting seat via a sway drive mechanism, wherein the sway drive mechanism is configured to drive the sway frame to swing left and right around a vertical axis on the connecting seat;

[0011] A transverse sliding frame is slidably disposed on the front side of the transverse swing frame through a transverse sliding driving mechanism, wherein the transverse sliding driving mechanism is configured to be able to drive the transverse sliding frame to slide left and right on the transverse swing frame;

[0012] A vertical swing frame, connected to the front side of the horizontal sliding frame through a vertical swing drive mechanism, wherein the vertical swing drive mechanism is configured to drive the vertical swing frame to swing left and right around a horizontal axis on the horizontal swing frame;

[0013] The quick-change device is installed on the front side of the vertical swing frame and is used to connect with the box body of the power battery.

[0014] In the utility model of the working device for battery replacement, the upper end of the connecting seat is rotatably connected to the front part of the telescopic arm through a horizontal connecting pin shaft, and a front swing cylinder is arranged behind the connecting seat, and the two ends of the front swing cylinder are respectively connected to the lower part of the connecting seat and the front part of the telescopic arm.

[0015] In the working device for battery replacement of the utility model, the sway drive mechanism includes a sway cylinder, a sway rear articulated seat and a sway front articulated seat respectively arranged on the front side of the connecting seat and the rear side of the sway frame, and the sway front articulated seat and the sway rear articulated seat are rotatably connected by a vertically arranged sway articulated pin; the sway cylinder is used to push the sway frame to rotate around the sway articulated pin, and its two ends are respectively connected to the connecting seat and the sway frame.

[0016] In the working device for power replacement of the utility model, the transverse sliding drive mechanism includes a transverse sliding cylinder and horizontal slide grooves and horizontal slide rails which are respectively arranged on the transverse swing frame and the transverse sliding frame and cooperate with each other; the transverse sliding cylinder is used to push the transverse sliding frame to slide left and right, and its two ends are respectively connected to the transverse swing frame and the transverse sliding frame.

[0017] In the working device for battery replacement of the present utility model, the vertical swing drive mechanism includes a rotating connection mechanism and a rotating drive device. The rotating connection mechanism is used to rotationally connect the vertical swing frame and the horizontal sliding frame. The rotating drive device is used to drive the vertical swing frame to swing left and right around the rotating connection mechanism relative to the horizontal sliding frame.

[0018] In the utility model of the working device for battery replacement, the rotating connection mechanism is a vertical swing pin shaft that rotationally connects the vertical swing frame and the horizontal slide frame, and the rotating drive device is a vertical swing cylinder whose two ends are respectively connected to the vertical swing frame and the horizontal slide frame.

[0019] In the working device for battery replacement of the present invention, the rotating connection mechanism is a slewing bearing in which the outer ring and the inner ring are respectively connected to the vertical swing frame and the horizontal sliding frame, and the rotating drive device is a motor drive device or a worm gear device installed on the horizontal sliding frame for driving the outer ring to rotate relative to the inner ring.

[0020] In the utility model of the working device for battery replacement, the quick-change device comprises an upper bolt block and a lower bolt block, and a bolt-connected oil cylinder arranged in the same vertical plane;

[0021] The upper bolt block is fixedly installed on the front side of the vertical swing frame, and the lower bolt block is slidably arranged on the front side of the vertical swing frame through a guide device and is located below the upper bolt block; the two ends of the bolted cylinder are respectively connected to the upper bolt block and the lower bolt block and are used to push the lower bolt block to slide up and down, and the upper bolt block is provided with an upper bolt facing upward, and the lower bolt block is provided with a lower bolt facing downward.

[0022] In the working device for battery replacement of the present invention, vertical slide rails are arranged on the left and right sides of the vertical swing frame; the left and right ends of the lower bolt block extend to the positions of the vertical slide rails on the left and right sides of the vertical swing frame, and guide blocks are installed on the left and right ends of the lower bolt block; the guide block and the end of the lower bolt block form a guide groove matched with the vertical slide rail; the guide device is composed of the vertical slide rail and the guide groove.

[0023] The utility model provides a technical solution to achieve its purpose: a battery-swapping vehicle, which has the aforementioned battery-swapping working device, wherein the base of the battery-swapping working device is fixedly mounted on a vehicle frame.

[0024] Compared with the prior art, the battery-swapping working device of the utility model can move the power battery to a position farther away from the battery-swapping vehicle through the rotating device and the telescopic arm assembly, and can fine-tune the posture of the power battery, thereby reducing the site requirements for battery swapping and improving site adaptability and battery swapping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model's working device for power replacement.

[0026] Figure 2 It is a schematic diagram of the installation structure of the battery-swapping working device of the utility model on a battery-swapping vehicle.

[0027] Figure 3 It is a schematic diagram of the structure of the accessories in the utility model.

[0028] Figure 4 It is a schematic diagram of the connection structure between the attachment and the telescopic arm in the utility model.

[0029] Figure 5It is a schematic diagram of the connection structure between the horizontal swing frame and the horizontal sliding frame of the attachment in the utility model.

[0030] Figure 6 It is a schematic diagram of the connection structure of the horizontal sliding frame and the vertical swing frame of the attachment in the utility model.

[0031] Figure 7 It is a structural schematic diagram of the rotating connection mechanism of the attachment in the utility model.

[0032] Figure 8 It is a schematic diagram of the connection structure between the quick-change device of the attachment and the vertical swing frame in the utility model.

[0033] Fig. 9 It is a schematic diagram of the exploded structure of the quick-change device and the vertical swing frame of the attachment in the utility model.

[0034] Fig.10 It is a structural schematic diagram of a power battery adapted to the quick-change device in the utility model.

[0035] Fig.11 It is a structural schematic diagram of the battery-swapping vehicle of the utility model.

[0036] Parts names and serial numbers in the figure:

[0037] Accessories 60.

[0038] Connecting seat 61, horizontal connecting pin shaft 611, front swing cylinder support 612, lateral swing cylinder rear support 613, front swing cylinder 614, lateral swing rear articulated seat 615.

[0039] The sway frame 63 , the sway oil cylinder 631 , the sway front articulated seat 632 , the sway articulated pin 633 , the sway oil cylinder front support 634 , the upper slide rail 635 , and the lower slide rail 636 .

[0040] Horizontal slide frame 65, horizontal slide cylinder 651, upper slide groove 652, lower slide groove 653, upper slide groove block 654, lower slide groove block 655, rotation connection mechanism 656, outer ring 6561, inner ring 6562, rotation drive device 657.

[0041] Vertical swing frame 67, vertical slide rail 671.

[0042] Quick-change device 69 , upper bolt block 691 , upper plug 6911 , lower bolt block 692 , lower plug 6921 , bolted cylinder 693 , guide block 694 , guide slide 695 , guide device 696 .

[0043] The telescopic arm assembly 70 , the basic arm 71 , the telescopic arm 72 , the first telescopic arm 721 , the second telescopic arm 722 , the telescopic oil cylinder 73 , the lifting oil cylinder 74 , and the horizontal pin shaft 75 .

[0044] Rotating device 80 , rotating table 81 , base 82 , rotating support 83 , and rotating driving device 84 .

[0045] Power battery 100 , power battery box 110 , upper hook 111 , upper bolt groove 112 , lower hook 121 , lower bolt groove 122 .

[0046] Battery bracket 200 , battery replacement working device 300 , articulated frame 400 , front frame 401 , rear frame 402 , and cab 403 . DETAILED DESCRIPTION

[0047] The specific implementation scheme is described below with reference to the accompanying drawings.

[0048] like Figure 1 As shown, the battery replacement working device 300 of this embodiment includes: an attachment 60 , a telescopic arm assembly 70 , and a rotating device 80 .

[0049] like Figure 1 As shown, the telescopic arm assembly 70 includes a basic arm 71 and at least one telescopic arm 72, the telescopic arm 72 is telescopically slidable in the basic arm 71, and the basic arm 71 is hinged on the turntable 81 through a horizontal pin 75. A lifting cylinder 74 is provided between the turntable 81 and the basic arm 71 to push the telescopic arm assembly 70 up and down.

[0050] exist Figure 1 In the example, the telescopic arm 72 includes a first telescopic arm 721 and a second telescopic arm 722. The first telescopic arm 721 is telescopically sleeved in the basic arm 71, and the second telescopic arm 722 is telescopically sleeved in the first telescopic arm 721. The telescopic drive mechanism is used to drive the telescopic arm 72 to telescope relative to the basic arm 71, and includes a telescopic cylinder 73 and a rope row mechanism or a cylinder (not shown in the figure) arranged in the basic arm 71 and the telescopic arm 72. The telescopic cylinder 73 is arranged outside the basic arm 71, one end of which is connected to the first telescopic arm 721, and the other end is connected to the basic arm 71. The telescopic cylinder 73 can push the first telescopic arm 721 to telescope relative to the basic arm 71. When the first telescopic arm 721 is telescoped, the second telescopic arm 722 is driven by the rope row or the cylinder to telescope relative to the first telescopic arm 721.

[0051] like Figure 1 Figure 2 As shown, the rotary device 80 includes a base 82 and a rotary table 81, and the rotary table 81 is installed on the base 82 through a rotary drive mechanism. The rotary drive mechanism includes a rotary bearing 83 whose outer ring and inner ring are respectively fixedly connected to the rotary table 81 and the base 82, and a rotary drive device 84 for driving the outer ring to rotate on the inner ring. The rotary drive device 84 can be an assembly of a hydraulic motor and a reducer, or a worm gear device.

[0052] like Figure 3 As shown, the attachment 60 includes a connecting seat 61, a horizontal swing frame 63, a horizontal sliding frame 65, a vertical swing frame 67 and a quick-change device 69.

[0053] like Figure 4 As shown, the connection seat 61 is installed at the front of the second telescopic arm 722. A horizontal connection pin 611 is provided at the upper end of the connection seat 61, and is rotatably connected to the front of the second telescopic arm 722 through the horizontal connection pin 611. A front swing cylinder 614 is arranged behind the connection seat 61, the lower end of the front swing cylinder 614 is connected to the front swing cylinder support 612 at the rear of the connection seat 61, and the upper end of the front swing cylinder 614 is connected to the front end of the second telescopic arm 722. The front swing cylinder 614 can push the connection seat 61 to swing forward and backward around the horizontal connection pin 611 when it is telescopic.

[0054] like Figure 3 As shown, the lateral swing frame 63 is connected to the front side of the connecting seat 61 through a lateral swing driving mechanism, and the lateral swing driving mechanism is configured to be able to drive the lateral swing frame 63 to swing left and right around the vertical axis on the connecting seat 61.

[0055] like Figure 4 As shown, the sway drive mechanism includes a sway cylinder 631, a sway rear hinge seat 615 arranged on the connecting seat 61, and a sway front hinge seat 632 arranged on the sway frame 63. There are two pairs of the sway front hinge seat 632 and the sway rear hinge seat 615, which are arranged at intervals up and down, and are rotatably connected one-to-one through a sway hinge pin 633 arranged vertically, and the axis of the sway hinge pin 633 is a vertical axis. A sway cylinder front support 634 is arranged on the sway frame 63, and a sway cylinder rear support 613 is arranged on the connecting seat 61. The two ends of the sway cylinder 631 are respectively connected to the sway cylinder front support 634 and the sway cylinder rear support 613. The sway cylinder 631 is used to push the sway frame 63 to rotate around the sway hinge pin 633 to achieve left and right swing of the sway frame 63.

[0056] like Figure 3 As shown, the transverse sliding frame 65 is slidably disposed on the front side of the lateral swing frame 63 through a transverse sliding driving mechanism, and the transverse sliding driving mechanism is configured to be able to drive the transverse sliding frame 65 to slide left and right on the lateral swing frame 63 .

[0057] like Figure 5 As shown, the transverse sliding drive mechanism includes a transverse sliding cylinder 651, a horizontal slide rail and a horizontal slide groove which are arranged on the transverse swing frame 63 and the transverse slide frame 65 and cooperate with each other.

[0058] The horizontal slide includes an upper slide 652 and a lower slide 653, and the horizontal slide includes an upper slide 635 and a lower slide 636. An upper slide block 654 for forming the upper slide 652 is provided at the top of the horizontal slide frame 65, and the notch of the upper slide 652 faces downward. An upper slide 635 is provided at the top of the horizontal swing frame 63, and the upper slide 652 cooperates with the upper slide 635. The upper slide 652 plays the role of a hook, so that the horizontal slide frame 65 is suspended on the horizontal swing frame 63 and can slide left and right along the upper slide 635.

[0059] Two lower slide groove blocks 655 are installed at the bottom of the transverse slide frame 65, which are spaced apart on the left and right. The lower slide groove blocks 655 are used to form a lower slide groove 653. The notch of the lower slide groove 653 faces upward and cooperates with the lower slide rail 636 on the lateral swing frame 63. The lower slide groove 653 plays a limiting role to prevent the lower part of the transverse slide frame 65 from moving forward relative to the lateral swing frame 63 and detaching from the lateral swing frame 63.

[0060] like Figure 5 As shown, the transverse sliding cylinder 651 is used to push the transverse sliding frame 65 to slide left and right on the transverse swing frame 63, and its two ends are respectively connected to the transverse swing frame 63 and the transverse sliding frame 65.

[0061] like Figure 3 As shown, the vertical swing frame 67 is connected to the front side of the transverse sliding frame 65 through a vertical swing driving mechanism, and the vertical swing driving mechanism is configured to drive the vertical swing frame 67 to swing left and right around a horizontal axis on the transverse swing frame 65.

[0062] The vertical swing driving mechanism includes a rotating connection mechanism 656 and a rotating driving device 657. The rotating connection mechanism 656 is used for relative rotational connection between the vertical swing frame 65 and the horizontal sliding frame 63. The rotating driving device 657 is used to drive the vertical swing frame 65 to swing left and right relative to the horizontal sliding frame 63 around the rotating connection mechanism 656.

[0063] Figure 7 The structure of a rotation connection mechanism 656 and a rotation drive device 657 is shown. The rotation connection mechanism 656 is a slewing bearing structure arranged in a vertical plane, which includes an inner ring 6562 and an outer ring 6561. The outer ring 6561 is fixedly connected to the horizontal sliding frame 65, and the inner ring 6562 is fixedly connected to the vertical swing frame 67. The inner ring 6562 can rotate relative to the outer ring 6561.

[0064] The rotation drive device 657 is a hydraulic motor and a reducer assembly, which includes a hydraulic motor and a reducer, and the gear on the output shaft thereof meshes with the gear on the inner ring 6562. The hydraulic motor and the reducer assembly can drive the inner ring 6562 to rotate forward or reverse, thereby driving the vertical swing frame 65 to rotate around the rotation connection mechanism 656, that is, the vertical swing frame 65 swings left or right on the horizontal slide frame 63. In application, the swing angle of the vertical swing frame 67 is small, so the rotation drive device 657 can also use a worm gear device instead of the hydraulic motor and the reducer assembly.

[0065] Since the vertical swing frame 65 rotates at a relatively small angle when the attachment 60 is working, the structures of the rotation connection mechanism 656 and the rotation drive device 657 can also adopt other forms. For example, the rotation connection mechanism 656 is composed of a vertical swing pin shaft, and the vertical swing frame 67 is rotationally mounted to the front side of the horizontal slide frame 65 through the vertical swing pin shaft. Correspondingly, the rotation drive device 657 can be composed of a vertical swing oil cylinder, and the two ends of the vertical swing oil cylinder are respectively connected to the vertical swing frame and the horizontal slide frame. The vertical swing oil cylinder is extended and retracted to push the vertical swing frame to rotate (swing) slightly in the left and right directions around the vertical swing pin shaft.

[0066] like Figure 8 As shown, the quick-change device 69 is installed on the front side of the vertical swing frame 67 for connecting to the power battery box 110 of the power battery 100 .

[0067] like Figure 8 Fig. 9 As shown, the quick-change device 69 includes an upper bolt block 691 fixedly mounted on the vertical swing frame 67, a lower bolt block 692 slidably arranged on the vertical swing frame through a guide device 696, and a bolted cylinder 693 for pushing the lower bolt block 692 to slide up and down, the upper bolt block 691 and the lower bolt block 692 are arranged in the same vertical plane; the two ends of the bolted cylinder 693 are respectively connected to the upper bolt block 691 and the lower bolt block 692, the lower bolt block 692 is arranged below the upper bolt block 691, the upper bolt block 691 is provided with an upper bolt 6911 facing upward, and the lower bolt block 692 is provided with a lower bolt 6921 facing downward; the upper bolt 6911 and the lower bolt 6921 are each symmetrically arranged left and right about the middle surface of the attachment.

[0068] like Fig. 9 As shown, vertical slide rails 671 are provided on the left and right sides of the vertical swing frame 67. The left and right ends of the lower bolt block 692 extend to the positions where the vertical slide rails 671 are provided on the left and right sides of the vertical swing frame 67. Guide blocks 694 are installed on the left and right ends of the lower bolt block 692; the guide blocks 694 and the ends of the lower bolt block 692 form guide grooves 695 that are compatible with the vertical slide rails 671; the guide device 696 is composed of the vertical slide rails 671 and the guide grooves 695.

[0069] The upper bolt block 691 is a long plate-like structure, which is arranged in parallel with the lower bolt block 692. The upper plug 6911 is arranged at the top of the upper bolt block 691 in the shape of a strip protrusion along the length direction of the upper bolt block 691, and protrudes upward at the top of the upper bolt block 691. The lower plug 6921 is arranged at the bottom of the lower bolt block 692 along the length direction of the lower bolt block 692, and is in the shape of a strip protrusion, and protrudes downward at the bottom of the lower bolt block 692.

[0070] The cross-sections of the upper plug 6911 and the lower plug 6921 are both right-angled trapezoids, and the waist edges facing the front are vertical edges. The cross-section of the upper plug 6911 is narrow at the top and wide at the bottom. The cross-section of the lower plug 6921 is wide at the top and narrow at the bottom, and is an inverted trapezoid.

[0071] Corresponding to the upper bolt block 691 and the lower bolt block 692 on the quick-change device 69 , a connecting device for use with the quick-change device 69 is provided on a vertical side surface of the power battery box 110 of the power battery 100 .

[0072] like Fig.10 As shown, the connecting device includes an upper hook 111 and a lower hook 121 fixed on the power battery box 110. The upper hook 111 is provided with an upper bolt groove 112 with a notch facing downward for the upper bolt 6911 to be inserted upward; the lower hook 122 is provided with a lower bolt groove 122 with a notch facing upward for the lower bolt 6921 to be inserted downward.

[0073] The notch of the upper bolt groove 101 faces downward. The notch of the lower bolt groove 102 faces upward, opposite to the notch of the upper bolt groove 101. When the quick-change device 69 is connected to the power battery 100, the position of the attachment 60 is adjusted so that the upper bolt block 691 and the lower bolt block 692 are located between the upper bolt groove 101 and the lower bolt groove 102 on the power battery case 110, and then the attachment 60 is moved upward so that the upper bolt 6911 is embedded in the upper bolt groove 101, and the bolting cylinder 693 is extended to move the lower bolt block 692 downward until the lower bolt 6921 is embedded in the lower bolt groove 102, thereby completing the connection between the attachment 60 and the power battery 100.

[0074] The upper hook 111 and the lower hook 121 on the box 110 of the power battery are arranged mirror-symmetrically about the middle surface of the power battery 100. Fig.10 In the power battery 100 shown, two upper hooks 111 and two lower hooks 121 are provided, and a lower hook 121 is arranged directly below each upper hook 111 .

[0075] This embodiment also provides a battery swapping vehicle, which includes an articulated frame 400 and the aforementioned battery swapping working device 300, a cab 403 is mounted on the front of the rear frame 402, a base 82 of the battery swapping working device 300 is fixedly mounted on the rear of the front frame 401, and a battery bracket 200 is mounted on the front end of the front frame 401 for placing the power battery 100 to be replaced and the power battery 100 replaced from the electric machinery. The battery swapping vehicle adopts an articulated frame 400, which is similar to the frame structure of a loader, so that it has strong off-road capabilities and is suitable for battery swapping operations on electric engineering machinery in work sites with uneven ground.

[0076] In this embodiment, the battery-swapping working device 300 can move the power battery to a position far away from the battery-swapping vehicle through the slewing device 80 and the telescopic arm assembly 70, and the attachment 60 can fine-tune the posture of the power battery 100. The replaced power battery 100 can be placed on the battery bracket 200 during the battery-swapping process, thereby reducing the site requirements for the battery-swapping operation and improving the site adaptability and battery-swapping efficiency. The quick-change device 69 of the attachment 60 is convenient for quick connection and disconnection with the power battery 100, and is connected to the side of the power battery 100, which is convenient for battery-swapping operations.

Claims

1. A working device for power replacement, characterized in that: Includes: Accessories and: A rotary device, comprising a base and a rotary table, wherein the rotary table is mounted on the base through a rotary drive mechanism; the rotary drive mechanism comprises a rotary bearing whose outer ring and inner ring are respectively fixedly connected to the rotary table and the base, and a rotary drive device for driving the outer ring to rotate relative to the inner ring; A telescopic arm assembly, comprising a basic arm and at least one section of the telescopic arm, wherein the telescopic arm is telescopically sleeved in the basic arm, the basic arm is hinged to the turntable through a horizontal pin, and a lifting cylinder for lifting the telescopic arm assembly is provided between the turntable and the basic arm; The accessories include: A connecting seat is installed at the front of the last telescopic arm; A sway frame connected to the front side of the connecting seat via a sway drive mechanism, wherein the sway drive mechanism is configured to drive the sway frame to swing left and right around a vertical axis on the connecting seat; A transverse sliding frame is slidably disposed on the front side of the transverse swing frame through a transverse sliding driving mechanism, wherein the transverse sliding driving mechanism is configured to be able to drive the transverse sliding frame to slide left and right on the transverse swing frame; A vertical swing frame, connected to the front side of the horizontal sliding frame through a vertical swing drive mechanism, wherein the vertical swing drive mechanism is configured to drive the vertical swing frame to swing left and right around a horizontal axis on the horizontal swing frame; The quick-change device is installed on the front side of the vertical swing frame and is used to connect with the box body of the power battery.

2. The battery replacement working device according to claim 1, characterized in that: The upper end of the connecting seat is rotationally connected to the front part of the telescopic arm through a horizontal connecting pin shaft, and a front swing cylinder is arranged behind the connecting seat, and the two ends of the front swing cylinder are respectively connected to the lower part of the connecting seat and the front part of the telescopic arm.

3. The battery replacement working device according to claim 1 or 2, characterized in that: The sway drive mechanism includes a sway cylinder, a sway rear articulated seat and a sway front articulated seat respectively arranged on the front side of the connecting seat and the rear side of the sway frame, and the sway front articulated seat and the sway rear articulated seat are rotatably connected via a vertically arranged sway articulated pin; the sway cylinder is used to push the sway frame to rotate around the sway articulated pin, and its two ends are respectively connected to the connecting seat and the sway frame.

4. The working device for battery replacement according to claim 1, characterized in that: The transverse sliding drive mechanism includes a transverse sliding cylinder and horizontal slide grooves and horizontal slide rails which are respectively arranged on the transverse swing frame and the transverse sliding frame and cooperate with each other; the transverse sliding cylinder is used to push the transverse sliding frame to slide left and right, and its two ends are respectively connected to the transverse swing frame and the transverse sliding frame.

5. The battery replacement working device according to claim 1, characterized in that: The vertical swing driving mechanism includes a rotating connection mechanism and a rotating driving device, wherein the rotating connection mechanism is used to rotationally connect the vertical swing frame and the transverse sliding frame, and the rotating driving device is used to drive the vertical swing frame to swing left and right around the rotating connection mechanism relative to the transverse sliding frame.

6. The battery replacement working device according to claim 5, characterized in that: The rotating connection mechanism is a vertical swing pin that rotationally connects the vertical swing frame and the horizontal slide frame, and the rotating drive device is a vertical swing cylinder whose two ends are respectively connected to the vertical swing frame and the horizontal slide frame.

7. The battery replacement working device according to claim 5, characterized in that: The rotating connection mechanism is a slewing bearing in which the outer ring and the inner ring are respectively connected to the vertical swing frame and the horizontal sliding frame, and the rotating drive device is a motor drive device or a worm gear device installed on the horizontal sliding frame to drive the outer ring to rotate relative to the inner ring.

8. The battery replacement working device according to claim 1, characterized in that: The quick-change device comprises an upper bolt block and a lower bolt block, and a bolt-connected oil cylinder, which are arranged in the same vertical plane; The upper bolt block is fixedly installed on the front side of the vertical swing frame, and the lower bolt block is slidably arranged on the front side of the vertical swing frame through a guide device and is located below the upper bolt block; the two ends of the bolted cylinder are respectively connected to the upper bolt block and the lower bolt block and are used to push the lower bolt block to slide up and down, and the upper bolt block is provided with an upper bolt facing upward, and the lower bolt block is provided with a lower bolt facing downward.

9. The battery replacement working device according to claim 8, characterized in that: Vertical slide rails are arranged on the left and right sides of the vertical swing frame; the left and right ends of the lower bolt block extend to the positions of the vertical slide rails on the left and right sides of the vertical swing frame, and guide blocks are installed on the left and right ends of the lower bolt block; the guide block and the end of the lower bolt block form a guide groove that is compatible with the vertical slide rail; the guide device is composed of the vertical slide rail and the guide groove.

10. A battery-swapping vehicle, characterized in that: It comprises the working device for battery replacement as described in any one of claims 1 to 9, wherein the base of the working device for battery replacement is fixedly mounted on the vehicle frame.

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