CN213112400U

CN213112400U - Running gear and trade electric equipment

Info

Publication number: CN213112400U
Application number: CN202021984751.9U
Authority: CN
Inventors: 王亚光
Original assignee: Blue Valley Smart Beijing Energy Technology Co Ltd
Current assignee: Blue Valley Smart Beijing Energy Technology Co Ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-05-04
Anticipated expiration: 2030-09-11

Abstract

The utility model provides a running gear and trade electrical equipment, wherein, running gear includes: a main frame body; at least one walking driving wheel and at least one driven wheel are respectively arranged on two opposite side walls of the main frame body, the walking driving wheel and the driven wheel are both positioned on the outer sides of the corresponding side walls, and the driven wheel is formed into a unilateral wheel. The utility model provides a running gear is provided with walking drive wheel respectively in the both sides of main framework and follows the driving wheel, and form into unilateral wheel from the driving wheel, each can carry out unilateral spacing to running gear's walking on the walking track from the driving wheel, make the combination of the follow driving wheel of both sides and the relation that forms cover and quilt cover between the walking track, restriction running gear is at the ascending displacement of length direction of perpendicular to walking track, guarantee running gear not off tracking when walking track, avoid excessive location to lead to running gear card on the walking track simultaneously, guarantee running gear along the orbital smooth and easy walking of walking.

Description

Running gear and trade electric equipment

Technical Field

The utility model relates to an electric automobile trades the electric field, in particular to running gear and trades electric equipment.

Background

With the holding amount of electric vehicles increasing, how to use electric vehicles more conveniently becomes one of the public concerns. Due to the inherent properties of the electric automobile, the power battery needs to be charged through a charging pile, and although the fast charging technology of the current electric automobile is more advanced and the charging speed is faster and faster, a large amount of time is still needed compared with the refueling time of a fuel automobile. Therefore, energy supply through the power battery quick-change technology becomes an important direction for the development of the field of the current electric automobile.

In order to realize the quick replacement of the power battery, the battery replacement equipment needs to move back and forth in the battery replacement vehicle and the storage area of the power battery, so that the problem of how to match the travelling mechanism of the battery replacement vehicle becomes a problem to be solved.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a technical purpose that will reach provides a running gear and trades electric equipment for realize power battery and trade the transfer between electric vehicle and power battery storage area.

In order to achieve the above technical purpose, an embodiment of the present invention provides a traveling mechanism, including:

a main frame body;

at least one walking driving wheel and at least one driven wheel are respectively arranged on two opposite side walls of the main frame body, the walking driving wheel and the driven wheel are both positioned on the outer sides of the corresponding side walls, and the driven wheel is formed into a unilateral wheel.

Preferably, as the traveling mechanism described above, the driven wheel includes: the hub part and the limiting part are both formed into a cylinder, wherein the hub part and the limiting part are arranged coaxially, the diameter of the limiting part is larger than that of the hub part, and the limiting part is arranged on one side of the hub part facing or back to the corresponding side wall.

In particular, as for the travelling mechanism, at least two driven wheels are arranged on each side wall.

Preferably, the traveling mechanism as described above, further comprises: and the supporting wheel is rotatably connected with the side wall and arranged between the walking driving wheel and the driven wheel, or the supporting wheel is arranged between two driven wheels positioned on the same side.

Specifically, as for the travelling mechanism, a partition plate is arranged in the main frame body, two ends of the partition plate are respectively connected with two side walls, and the main frame body is respectively formed into a first accommodating space and a second accommodating space at two sides of the partition plate.

Preferably, the running gear as described above, further comprising: the walking driving motor, the walking driving reducer and the walking driving shaft are arranged in the first accommodating space;

wherein, the output end of the walking drive motor is connected with the walking drive reducer;

the walking driving shaft penetrates through the walking driving speed reducer and the two opposite side walls and is connected with the walking driving wheel.

The utility model discloses a preferred embodiment still provides a trade electrical equipment, include: the battery replacement mechanism, the lifting mechanism and the travelling mechanism are arranged on the frame;

wherein, the main frame body of the walking mechanism is sleeved outside the lifting mechanism and is connected with the lifting mechanism;

the battery replacing mechanism is arranged on the lifting mechanism and can move in the vertical direction relative to the traveling mechanism through the lifting mechanism.

Preferably, as above-mentioned battery replacement equipment, the lifting mechanism includes: the eccentric disc is arranged on the side wall of the chassis;

the eccentric disc is rotatably connected with the side wall through a first rotating shaft, and the supporting roller is rotatably connected with the eccentric disc through a second rotating shaft;

the outer side wall of the chassis is provided with a lifting slide rail corresponding to the supporting rollers, the lifting slide rail is arranged in the lifting slide rail through the supporting rollers, and the eccentric disc is rotatably connected with the outer side wall of the chassis.

Specifically, as above, the battery replacement device, the lifting mechanism further includes: the lifting driving wheel and the lifting transmission wheel are arranged on the side wall, and the lifting driving motor, the lifting driving reducer and the lifting driving shaft are arranged in the main frame body;

wherein the first rotating shaft penetrates through the side wall and is connected with a lifting transmission wheel;

the output end of the lifting driving motor is connected with a lifting driving speed reducer;

the lifting driving shaft penetrates through the lifting driving speed reducer and the two side walls and is connected with the lifting driving wheel;

the lifting driving wheel is connected with the lifting driving wheel through a chain or a belt, and the lifting driving wheel and the eccentric disc are coaxially arranged.

Further, as for the battery replacement equipment, the inner side of the main frame body is also provided with a first guide structure, and the outer side of the chassis is provided with a second guide structure matched with the first guide structure.

Compared with the prior art, the embodiment of the utility model provides a pair of running gear and trade electric equipment has following beneficial effect at least:

the utility model provides a running gear is provided with walking drive wheel respectively in the both sides of main framework and follows the driving wheel, and form into unilateral wheel from the driving wheel, each can carry out unilateral spacing to running gear's walking on the walking track from the driving wheel, make the combination of the follow driving wheel of both sides and the relation that forms cover and quilt cover between the walking track, restriction running gear is at the ascending displacement of length direction of perpendicular to walking track, guarantee running gear not off tracking when walking track, avoid excessive location to lead to running gear card on the walking track simultaneously, guarantee running gear along the orbital smooth and easy walking of walking.

Drawings

Fig. 1 is a schematic structural view of a traveling mechanism of the present invention;

fig. 2 is a schematic structural view of the driven wheel of the present invention;

fig. 3 is one of schematic structural diagrams of the battery replacement device of the present invention;

fig. 4 is a schematic structural view of the chassis of the present invention;

fig. 5 is a second schematic structural diagram of the battery replacement device of the present invention;

fig. 6 is a third schematic structural diagram of the battery replacement device of the present invention;

fig. 7 is a fourth schematic structural view of the battery replacement device of the present invention;

fig. 8 is a fifth schematic structural view of the battery replacement device of the present invention;

fig. 9 is a sixth schematic structural view of the battery replacement device of the present invention;

fig. 10 is a seventh schematic structural diagram of the battery replacement device of the present invention.

[ description of reference ]

100. A traveling mechanism; 1. a main frame body; 101. a partition plate; 2. a traveling driving wheel; 3. a driven wheel; 301. A hub portion; 302. a limiting part; 401. a travel driving motor; 402. a walking drive reducer; 403. A travel drive shaft; 200. a lifting mechanism; 501. a chassis; 502. an eccentric disc; 503. supporting the roller; 504. lifting the slide rail; 505. lifting the driving wheel; 506. lifting the transmission wheel; 507. lifting the driving motor; 508. lifting and driving the speed reducer; 509. a lift drive shaft; 510. a first guide structure; 511. a second guide structure; 300. a battery replacement mechanism; 601. a nut; 602. a transverse moving drive screw rod; 603. a slider; 604. A guide slide rail; 605. transversely moving the plate; 606. a support plate; 607. a transmission limiting block; 608. an unlocking fork; 609. the battery pack is positioned by the U-shaped fork; 610. an elastic structure; 611. an adjustment plate; 612. adjusting the driving screw; 613. an opening; 614. a lifting fork; 615. and lifting the block.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments. In the following description, specific details are provided, such as specific configurations and components, merely to facilitate a thorough understanding of embodiments of the invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

Referring to fig. 1, a preferred embodiment of the present invention provides a traveling mechanism 100, including:

a main frame body 1;

at least one walking driving wheel 2 and at least one driven wheel 3 are respectively arranged on two opposite side walls of the main frame body 1, the walking driving wheel 2 and the driven wheel 3 are both positioned on the outer sides of the corresponding side walls, and the driven wheel 3 is formed into a single-side wheel.

In an embodiment of the present invention, a traveling mechanism 100 is provided, and the traveling mechanism 100 includes: the walking mechanism comprises a main frame body 1, and at least one walking driving wheel 2 and at least one driven wheel 3 which are arranged on two opposite side walls of the main frame body 1, wherein at least four wheels are used for supporting, so that the balance and stability of the walking mechanism 100 are ensured; the walking driving wheel 2 and the driven wheel 3 are both positioned on the outer side of the side wall, so that the wheels can be conveniently mounted and dismounted. Preferably, the driven wheels 3 are unilateral wheels, each driven wheel 3 can limit the traveling of the traveling mechanism 100 on the traveling track in a unilateral manner, the two driven wheels 3 respectively positioned on the two side walls are combined to limit the displacement of the traveling mechanism 100 in the length direction perpendicular to the traveling track, so that the traveling mechanism 100 is prevented from deviating when traveling along the traveling track, and meanwhile, the traveling mechanism 100 is prevented from being clamped on the traveling track due to over-positioning, and the traveling mechanism 100 is ensured to smoothly travel along the traveling track.

In a specific embodiment of the present invention, the main frame 1 is formed in a four-sided frame structure; the person skilled in the art improves the main frame 1 on the basis of this, and the invention also belongs to the protection scope of the present invention.

Specifically, the traveling driving wheels 2 on the two side walls are correspondingly disposed and located in front of or behind the traveling mechanism 100 in the traveling direction, so as to be driven by one driving shaft. Preferably, the rolling surface of the walking drive wheel 2 is provided with an anti-slip structure, including but not limited to one or more of rubber, anti-slip texture, etc., for increasing the friction of the walking drive wheel 2 and avoiding the walking drive wheel 2 from slipping.

Preferably, as the traveling mechanism 100 described above, the driven wheel 3 includes: the hub portion 301 and the limiting portion 302 are formed as a cylinder, wherein the hub portion 301 and the limiting portion 302 are arranged coaxially, the diameter of the limiting portion 302 is larger than that of the hub portion 301, and the limiting portion 302 is arranged on one side of the hub portion 301 facing or facing away from the corresponding side wall.

In a preferred embodiment of the present invention, the driven wheel 3 includes a hub portion 301 and a limiting portion 302, wherein the hub portion 301 and the limiting portion 302 are both formed as a cylinder, and the hub portion 301 and the limiting portion 302 are arranged coaxially, and the side surface of the cylinder is used for contacting with the ground or a walking track, supporting the main frame 1 and realizing the walking function of the walking mechanism 100; the diameter of the limiting part 302 is larger than that of the hub part 301, so that the end surface of the limiting part 302 corresponds to the side surface of the walking track, and when the traveling route of the walking mechanism 100 is inconsistent with the walking track laying route, the limiting part 302 contacts with the side surface of the walking track, thereby changing the traveling route of the walking mechanism 100 and enabling the walking mechanism 100 to travel along the walking track; specifically, the position limiting portion 302 is disposed on one side of the hub portion 301 facing toward or away from the corresponding side wall, so that the position limiting portions 302 of the driven wheels 3 on both sides and the running rail are formed in a sleeved-to-sleeved relationship, for example: the limiting parts 302 of the driven wheels 3 on both sides are sleeved outside the traveling track, or the traveling track is sleeved outside the limiting parts 302 of the driven wheels 3 on both sides. Since the stopper 302 receives a large torque force applied by the running rail during guiding, it is preferable that the structural strength of the stopper 302 is greater than that of the hub 301, so that deformation or breakage of the stopper 302 due to insufficient strength during guiding is avoided, and the guiding function of the driven wheel 3 is ensured.

Specifically, as described above, in the traveling mechanism 100, at least two driven wheels 3 are provided on each side wall.

In an embodiment of the present invention, to further ensure the guiding function of the driven wheels 3, at least two driven wheels 3 are disposed on each side wall, and the driven wheels 3 disposed in the middle position can provide a middle supporting function for the main frame 1 in addition to guiding, so as to avoid the occurrence of bending or even breaking of the side walls of the main frame 1 due to the large load carried by the traveling mechanism 100.

Preferably, the traveling mechanism 100 as described above further includes: and the supporting wheel is rotatably connected with the side wall and is arranged between the walking driving wheel 2 and the driven wheel 3, or the supporting wheel is arranged between the two driven wheels 3 positioned on the same side.

In another preferred embodiment of the present invention, the side wall is further provided with a support wheel for supporting the main frame 1, so as to avoid the occurrence of bending or even breaking of the side wall of the main frame 1 due to the large load on the traveling mechanism 100. Wherein the supporting wheel and/or the driven wheel 3 is preferably a metal wheel to give itself a high structural strength. Further, the metal wheel is a steel wheel.

Alternatively, when the length of the lateral side wall perpendicular to the walking direction on the main frame 1 is large, at least one support wheel may be provided on the lateral side wall for supporting.

Specifically, as for the traveling mechanism 100 described above, a partition plate 101 is disposed in the main frame 1, two ends of the partition plate 101 are respectively connected to two side walls, and the main frame 1 is respectively formed into a first accommodating space and a second accommodating space at two sides of the partition plate 101.

In another preferred embodiment of the present invention, the main frame body 1 is divided into two accommodating spaces, namely, the first accommodating space and the second accommodating space, by the partition board 101 disposed in the main frame body 1, so that the accommodated structures in the two accommodating spaces do not interfere with each other, thereby avoiding affecting the normal use of the traveling mechanism 100. The size of the space is determined according to the specific use requirements of the two accommodating spaces, and then the setting position of the partition board 101 is determined. Two lateral walls are connected respectively at the both ends of baffle 101, are favorable to guaranteeing the stability that baffle 101 set up.

Preferably, as the traveling mechanism 100 described above, the traveling mechanism 100 further includes: a travel driving motor 401, a travel driving reducer 402, and a travel driving shaft 403 disposed in the first accommodation space;

wherein, the output end of the walking drive motor 401 is connected with the walking drive reducer 402;

the travel drive shaft 403 passes through the travel drive reducer 402 and the opposite side walls, and is connected to the travel drive wheels 2.

In an embodiment of the present invention, a walking driving motor 401, a walking driving reducer 402 and a walking driving shaft 403 are disposed in the first accommodating space, wherein an output end of the walking driving motor 401 is connected to the walking driving reducer 402, so that the torque and the rotating speed outputted by the walking driving motor 401 can be adjusted according to the walking requirement, such as speed. The walking driving shaft 403 passes through the walking driving reducer 402 and the two opposite side walls and is connected to the walking driving wheels 2, so that the walking driving wheels 2 on the two side walls receive the same driving force, thereby ensuring stable walking of the walking mechanism 100.

The utility model discloses a preferred embodiment still provides a trade electrical equipment, include: the battery replacement mechanism 300, the lifting mechanism 200 and the traveling mechanism 100 as described above;

wherein, the main frame 1 of the traveling mechanism 100 is sleeved outside the lifting mechanism 200 and connected with the lifting mechanism 200;

the battery replacement mechanism 300 is disposed on the lifting mechanism 200, and the battery replacement mechanism 300 can move in the vertical direction relative to the traveling mechanism 100 through the lifting mechanism 200.

The utility model discloses a still provide a trade electric equipment including this running gear 100 in another preferred embodiment, wherein trade electric equipment still including be used for trading electric mechanism 300 and connect the lifting mechanism 200 who trades electric mechanism 300 and running gear 100 for the vehicle trades electric, can realize trading electric mechanism 300 for running gear 100 removal on vertical direction through lifting mechanism 200, and then be convenient for realize trading electric equipment to the trade of vehicle. Specifically, the main frame 1 of the traveling mechanism 100 is sleeved outside the lifting mechanism 200, so that when the lifting mechanism 200 is in a non-lifting state, part or all of the lifting mechanism 200 is located in the main frame 1, which is beneficial to saving space.

Preferably, as mentioned above, the lifting mechanism 200 includes: a base plate 501, an eccentric disc 502 disposed on a sidewall, and a supporting roller 503 disposed at a protruding end of the eccentric disc 502;

wherein, the eccentric disc 502 is rotationally connected with the side wall through a first rotating shaft, and the supporting roller 503 is rotationally connected with the eccentric disc 502 through a second rotating shaft;

the outer side wall of the chassis 501 is provided with a lifting slide rail 504 corresponding to the supporting roller 503, the supporting roller 503 is arranged in the lifting slide rail 504, and the eccentric disc 502 is rotatably connected with the outer side wall of the chassis 501.

In a preferred embodiment of the present invention, the lifting mechanism 200 comprises: a base plate 501, an eccentric disc 502 disposed on a sidewall, and a supporting roller 503 disposed at a protruding end of the eccentric disc 502; the chassis 501 is connected with the main frame 1 through an eccentric disc 502 and a supporting roller 503, specifically, the eccentric disc 502 is rotatably connected with a side wall through a first rotating shaft, the supporting roller 503 is rotatably connected with the eccentric disc 502 through a second rotating shaft, a lifting slide rail 504 corresponding to the supporting roller 503 is arranged on the outer side wall of the chassis 501, and the supporting roller 503 is arranged in the lifting slide rail 504; eccentric disc 502 is in the pivoted in-process, the protruding end of eccentric wheel is changing between low department and eminence for first pivot, and then through supporting roller 503 and lift slide rail 504, turn into the eccentric wheel around the rotation of first pivot chassis 501 removal in vertical direction, realize lifting mechanism 200's rising and decline, and then realize trading electric mechanism 300 and rise and trade the electricity and descend and transport, compare in current through cutting type structure or extending structure, it is simple and lift realization more convenient structurally.

Specifically, as described above, the battery replacement device, the lifting mechanism 200 further includes: a lifting driving wheel 505 and a lifting transmission wheel 506 arranged on the side wall, and a lifting driving motor 507, a lifting driving reducer 508 and a lifting driving shaft 509 arranged in the main frame body 1;

wherein, the first rotating shaft penetrates through the side wall and is connected with a lifting transmission wheel 506;

the output end of the lifting driving motor 507 is connected with a lifting driving reducer 508;

a lifting driving shaft 509 passes through the lifting driving reducer 508 and the two side walls and is connected with the lifting driving wheel 505;

the lifting driving wheel 505 is connected with a lifting transmission wheel 506 through a chain or a belt, and the lifting transmission wheel 506 is coaxially arranged with the eccentric disc 502.

In another preferred embodiment of the present invention, the lifting mechanism 200 further comprises a lifting driving wheel 505 and a lifting driving wheel 506 disposed on the sidewall, and a lifting driving motor 507, a lifting driving reducer 508 and a lifting driving shaft 509 disposed in the main frame body 1, wherein the output end of the lifting driving motor 507 is connected to the lifting driving reducer 508, so that the torque and the rotation speed output by the lifting driving motor can be adjusted according to the lifting requirement. The lifting driving shaft 509 penetrates through the lifting driving reducer 508 and the two opposite side walls and is connected with the lifting driving wheel 505, so that the driving forces applied to the lifting driving wheels 505 on the two side walls are the same, and meanwhile, the lifting driving wheel 505 is connected with the lifting driving wheel 506 through a chain or a belt to drive the lifting driving wheel 506 to rotate, so as to drive the eccentric disc 502 to rotate, and thus, the chassis 501 and the battery replacement mechanism 300 are lifted. Specifically, at least two lifting transmission wheels 506 are arranged on each side wall, so that the stability of the chassis 501 and the power switching mechanism 300 in the lifting process is ensured.

Further, as for the battery replacement device, the inner side of the main frame 1 is further provided with a first guide structure 510, and the outer side of the chassis 501 is provided with a second guide structure 511 matched with the first guide structure 510.

The utility model discloses an in a preferred embodiment, the inboard of main frame body 1 is provided with first guide structure 510, and the outside on chassis 501 is provided with the second guide structure 511 with first guide structure 510 matched with for chassis 501 goes up and down along same direction always when going up and down, avoids because of appearing rocking or the deviation, and the problem that leads to trading electric mechanism 300 and can't trade the electricity appears. Specifically, the first guide structure 510 and the second guide structure 511 are respectively one of a guide groove and a guide block inserted in the guide groove. Preferably, the guide block is formed as a T-shaped block, and the guide groove is a T-shaped groove.

Optionally, the battery swapping mechanism 300 includes a transverse moving mechanism disposed on the chassis 501 and capable of sliding relative to the chassis 501, where a moving direction of the transverse moving mechanism is perpendicular to a traveling direction and a vertical direction of the battery swapping device; specifically, the traverse mechanism is connected to a traverse driving lead screw 602 disposed in the chassis 501 through a nut 601, and is connected to a guide rail 604 disposed in the chassis 501 through a slider 603. Further, the transverse moving mechanism comprises a transverse moving plate 605 and a supporting plate 606, wherein the transverse moving plate 605 and the supporting plate 606 are connected through a transmission rod and a transmission limiting block 607 formed with a V-shaped groove, an unlocking fork 608 used for unlocking the battery pack is arranged on the transverse moving plate 605, and a battery pack positioning U-shaped fork 609 used for positioning the battery pack is arranged on the supporting plate 606. Furthermore, the transverse moving plate 605 is provided with an elastic structure 610 connected with the support plate 606, so that rigid collision to the power exchange equipment when the battery pack is detached is avoided. Specifically, when the elastic structure 610 is a spring, a positioning rod is disposed in the middle of the spring for guiding in order to avoid the support plate 606 and the traverse plate 605 from being misaligned due to the bending of the spring.

Specifically, the traverse mechanism further includes an adjusting plate 611 disposed between the base plate 501 and the traverse plate 605, wherein the adjusting plate 611 is connected to an adjusting drive screw 612 disposed in the base plate 501 through a nut 601, and is connected to a guide rail 604 disposed in the base plate 501 through a slider 603. Specifically, the adjusting plate 611 is provided with an opening 613 for connecting the traverse plate 605 with the nut 601 and/or the slider 603, and a lifting fork 614 and/or a lifting block 615 for connecting with the vehicle. The distance between the lifting fork 614 and/or the lifting block 615 and the battery pack positioning U-shaped fork 609 can be adjusted by adjusting the position of the adjusting plate 611, so that the battery replacement device is suitable for replacing batteries of various vehicle types.

Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A travel mechanism, comprising:

a main frame body (1);

at least one walking driving wheel (2) and at least one driven wheel (3) are arranged on two opposite side walls of the main frame body (1) respectively, the walking driving wheel (2) and the driven wheel (3) are located on the outer sides of the corresponding side walls, and the driven wheel (3) is formed into a single-side wheel.

2. Running gear according to claim 1, characterized in that the driven wheel (3) comprises: a hub portion (301) and a limiting portion (302) both formed as a cylinder, wherein the hub portion (301) and the limiting portion (302) are arranged coaxially with the axis, the diameter of the limiting portion (302) is larger than that of the hub portion (301), and the limiting portion (302) is arranged on one side of the hub portion (301) facing or facing away from the corresponding side wall.

3. Running gear according to claim 1, characterized in that at least two driven wheels (3) are arranged on each side wall.

4. The travel mechanism of claim 1, further comprising: and the supporting wheel is rotatably connected with the side wall, is arranged between the walking driving wheel (2) and the driven wheel (3), or is arranged between the two driven wheels (3) positioned on the same side.

5. The traveling mechanism according to claim 1, wherein a partition (101) is disposed in the main frame (1), two ends of the partition (101) are respectively connected to the two side walls, and the main frame (1) is respectively formed into a first accommodating space and a second accommodating space at two sides of the partition (101).

6. The running gear according to claim 5, characterized in that the running gear (100) further comprises: a walking driving motor (401), a walking driving reducer (402) and a walking driving shaft (403) which are arranged in the first accommodating space;

the output end of the walking driving motor (401) is connected with the walking driving reducer (402);

the walking driving shaft (403) penetrates through the walking driving reducer (402) and the two opposite side walls and is connected with the walking driving wheel (2).

7. An electricity swapping device, comprising: the power exchanging mechanism (300), the lifting mechanism (200) and the traveling mechanism (100) as claimed in any one of claims 1 to 6;

the main frame body (1) of the travelling mechanism (100) is sleeved outside the lifting mechanism (200) and is connected with the lifting mechanism (200);

the battery replacing mechanism (300) is arranged on the lifting mechanism (200), and the battery replacing mechanism (300) can move in the vertical direction relative to the travelling mechanism (100) through the lifting mechanism (200).

8. The swapping device of claim 7, wherein the lifting mechanism (200) comprises: a chassis (501), an eccentric disc (502) disposed on the sidewall, and a support roller (503) disposed at a protruding end of the eccentric disc (502);

the eccentric disc (502) is rotationally connected with the side wall through a first rotating shaft, and the supporting roller (503) is rotationally connected with the eccentric disc (502) through a second rotating shaft;

the outer side wall of the base plate (501) is provided with a lifting slide rail (504) corresponding to the supporting roller (503), the supporting roller (503) is arranged in the lifting slide rail (504), and the eccentric disc (502) is rotatably connected with the outer side wall of the base plate (501).

9. The swapping device of claim 8, wherein the lifting mechanism (200) further comprises: a lifting driving wheel (505) and a lifting transmission wheel (506) which are arranged on the side wall, and a lifting driving motor (507), a lifting driving reducer (508) and a lifting driving shaft (509) which are arranged in the main frame body (1);

wherein the first rotating shaft penetrates out of the side wall and is connected with a lifting driving wheel (506);

the output end of the lifting driving motor (507) is connected with the lifting driving speed reducer (508);

the lifting driving shaft (509) penetrates through the lifting driving speed reducer (508) and the two side walls and is connected with the lifting driving wheel (505);

the lifting driving wheel (505) is connected with the lifting driving wheel (506) through a chain or a belt, and the lifting driving wheel (506) and the eccentric disc (502) are coaxially arranged.

10. The battery replacement device according to claim 9, wherein a first guide structure (510) is further arranged on the inner side of the main frame body (1), and a second guide structure (511) matched with the first guide structure (510) is arranged on the outer side of the chassis (501).