CN216761507U

CN216761507U - Improve stop gear and battery transfer apparatus of battery transfer apparatus lift stability

Info

Publication number: CN216761507U
Application number: CN202123012996.2U
Authority: CN
Inventors: 张建平; 朱明厚; 吉毅; 胡海龙; 廖海博
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-06-17
Anticipated expiration: 2031-12-02

Abstract

The utility model provides a limiting mechanism for improving the lifting stability of battery transferring equipment and the battery transferring equipment, wherein the limiting mechanism comprises a plurality of back wheel sets, a plurality of groups of gear rack transmission units are arranged in a one-to-one correspondence manner and are fixed on preset positions of a battery taking and placing mechanism so as to position the positions of gears and racks in each group of gear rack transmission units; each back wheel set comprises two back wheels which are attached to the back of the corresponding rack at a preset angle and the side of the rack facing the battery taking and placing mechanism. According to the limiting mechanism for improving the lifting stability of the battery transfer equipment and the battery transfer equipment, the whole battery taking and placing mechanism enables the gear to be attached to the corresponding rack through the back wheel sets on a plurality of positions, so that the stable lifting of the battery taking and placing mechanism is realized, the lifting performance is improved, and the gear and rack tooth stripping condition is avoided; simple structure and low cost.

Description

Improve stop gear and battery transfer apparatus of battery transfer apparatus lift stability

Technical Field

The utility model relates to the field of battery replacement stations, in particular to a limiting mechanism for improving the lifting stability of battery transfer equipment and the battery transfer equipment.

Background

Along with the restriction of the battery charging time of the electric automobile, the quick-change electric automobile is accepted by more and more users, and only the battery pack with insufficient power needs to be replaced and the battery pack with full power needs to be installed in the power exchanging station or the energy storage station, so that the long-time battery charging time is saved. The power conversion station or the energy storage station is internally provided with: the battery pack charging device comprises battery replacing equipment for disassembling or assembling batteries, a battery transferring device for transferring the battery pack and a charging device for charging the battery pack.

The existing battery transfer device generally realizes lifting movement through a guide mechanism, a transmission mechanism and a driving mechanism, so that batteries are transferred between battery bins. Chinese patent application publication No. CN110901601A discloses an AGV charging station, which adopts the principle of multi-axis linkage and the design of multi-axis system, specifically, the battery is charged by being exchanged in the X-axis, Y-axis, Z-axis and the battery pulling and pushing direction, the battery is taken out from the AGV cart, and the battery is sent into the bearing frame. Chinese patent application publication No. CN106043247A discloses a modularly extendable power conversion station or energy storage station device and a charging rack, wherein battery storage modules in the charging rack are stacked together in a building block manner, a battery transfer device can pass through the battery storage modules, the battery transfer device carries a battery to a vacant battery storage module position inside the charging rack, a lifting device lifts up a battery transfer platform upwards, the battery transfer platform drives the battery placed thereon to move vertically upwards, the battery is fixed at a battery storage layer through a battery locking mechanism, and then the battery is charged by an electric layer. Chinese patent application No. CN208181025U discloses a battery compartment and a new energy vehicle battery replacement station, wherein a lift of the lift can dock and transfer a battery between an RGV cart and a battery rack, when replacing the battery for the new energy vehicle, a battery transfer device of the lift can transfer the battery between the new energy vehicle and the battery rack along a Y direction, can transfer the battery to the battery rack along an X direction or dock the battery from the battery rack, and a lifting platform can lift the battery along a Z direction to horizontally align the battery with the battery rack or the new energy vehicle.

However, the conventional transfer device generally drives the car to move up and down through a chain wheel and chain transmission manner, so as to correspond to a battery bin at any height position, thereby facilitating the taking and placing operation of the battery pack. Because the weight of battery package is great, if realize through rack and pinion transmission mode that the car carries battery package lift removal, lead to easily taking off the tooth between gear and the rack, can't drive the car lift removal, cause rack and pinion structural damage, be unfavorable for battery transfer device's normal operating.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defect that lifting of a battery transfer device in a battery replacing station in the prior art is easy to cause tooth disengagement and even damage between a gear and a rack in a gear and rack transmission mode, and provides a limiting mechanism for improving lifting stability of battery transfer equipment and the battery transfer equipment.

The utility model solves the technical problems through the following technical scheme:

the utility model provides a stop gear for improving battery transportation equipment lift stability, battery transportation equipment are close to and have a plurality of battery racks settings that are used for depositing the battery package, battery transportation equipment is including neighbouring the installation department that battery racks set up, be used for relatively the battery that battery rack's arbitrary battery position in storehouse carried out the battery and gets and put mechanism and drive the battery is got and is put the drive mechanism that mechanism lift was removed, drive mechanism is including locating respectively the installation department with the battery is got and is put multiunit rack and pinion drive unit between the mechanism, and its characteristics lie in, stop gear includes:

the back wheel sets are arranged corresponding to the gear rack transmission units one by one and fixed on preset positions of the battery taking and placing mechanism so as to position the gears and the racks in each gear rack transmission unit;

each back wheel set comprises two back wheels which are attached to the back surface of the corresponding rack at a preset angle and the side surface of the rack facing the battery taking and placing mechanism.

In this scheme, it is spacing to carry out on the vertical direction and the horizontal direction of gear on the flank of tooth of rack through the back wheelset that sets up the back that is located the rack and the side of getting to put the mechanism towards the battery, can guarantee that the gear can mesh and can not deviate from on the flank of tooth from vertical direction and horizontal direction for the gear can keep stable meshing with the rack, can lead spacing to lifting movement through the back wheelset moreover, makes the transmission more stable. Each gear rack transmission structure is tightly attached to the rack in three directions through the gear and the back wheel set, so that the stress on the gear can be reduced, and the gear is not easy to damage. Therefore, the whole battery taking and placing mechanism enables the gears to be attached to the corresponding racks through the back wheel groups at a plurality of positions, so that the stable lifting of the battery taking and placing mechanism is realized, the lifting performance is improved, and the gear rack gear-disengaging condition is avoided; simple structure and low cost.

Preferably, the number of the back wheel sets and the number of the rack and pinion transmission units satisfy a multiple relation that the number of the back wheel sets is a multiple of the number of the rack and pinion transmission units.

In this scheme, the back of the body wheel is the point contact, can make spacing mechanism multiple spot contact through setting up multiunit back of the body wheel, and spacing effect is better, and stability is higher.

Preferably, when the number of the back wheel sets is more than 2 times of the number of the rack and pinion transmission units, the corresponding number of the back wheel sets are arranged on the corresponding side surface of the battery picking and placing mechanism based on the average number of the back wheel sets relative to the rack and pinion transmission units, so that the gears of the corresponding rack and pinion transmission units are located between the back wheel sets at the upper end and the lower end.

In this scheme, set up the back of the body wheelset respectively in the upper and lower both sides of gear and can carry out spacingly better to the gear, prevent to take off the tooth, spacing effect is better.

Preferably, the plurality of back wheel sets disposed in the same region and the rotating shafts of the corresponding gears are fixed to form an integral structure through a fixing unit.

In this scheme, with the fixed body structure of back of the body wheelset and the gear and the pivot that correspond, be convenient for adjust the degree of engagement of gear and rack to can increase hookup location's intensity.

Preferably, the fixing unit includes a base fixedly disposed along a height direction of the battery pick-and-place mechanism, and a plurality of fixing plates fixed on the base in a horizontal direction, and the back wheel sets are disposed on the fixing plates in a one-to-one correspondence manner.

In this scheme, fix single back of the body wheelset as whole on the fixed plate that fixed baseplate corresponds, ensure the inseparable laminating of back of the body wheelset and rack, improve rack and pinion degree of engagement and direction limit function.

Preferably, the fixing plate is provided with a concave part matched with the back surface and the side surface of the corresponding rack, so that the back wheel set is tightly attached to the contact surface of the rack.

In this scheme, the fixed plate of unable adjustment base has seted up the depressed part and has made it can be with rack embedding wherein, and it is easier to make to set up the back of the body wheel group just to rack side and back on the fixed plate, and the laminating degree is convenient for adjust.

Preferably, each of the back wheels is fixed at a corresponding position of the fixing plate through a mounting seat, the mounting seat is provided with a through hole for being fixedly connected with the fixing plate, and the through hole is a waist-shaped adjusting hole extending towards the rack.

In this scheme, the mounted position of back of the body wheelset is adjustable, and the back of the body wheel passes through the mount pad to be connected with the fixed plate, has certain extending direction's waist type regulation hole through the setting, can adjust the mounted position of back of the body wheel through the different positions with the bolt fastening in waist type regulation hole to be close to or keep away from the rack, thereby guarantee the back of the body wheel and rack or the laminating degree of side.

Preferably, the fixing unit further includes a bearing seat fixed to the base adjacent to the rack, and a rotating shaft of the gear is connected to the gear through a bearing provided in the bearing seat to drive the gear to rotate.

In this scheme, through setting up pivot drive gear and adopting hole axle connected mode with pivot and gear and fixed baseplate be connected to together to be in the same place with stop gear is integrated, be convenient for the mesh degree of whole adjustment rack and pinion, and multiplicable hookup location's intensity.

The utility model provides a battery transportation equipment, battery transportation equipment is close to and has a plurality of battery rack settings that are used for depositing the battery package, battery transportation equipment is including neighbouring the installation department that battery rack set up, be used for relatively the battery that battery rack's arbitrary battery position in storehouse carried out the battery and gets and put mechanism, drive the battery is got and is put mechanism elevating movement's drive mechanism and as above stop gear, drive mechanism is including locating respectively the installation department with the battery is got and is put the multiunit rack and pinion drive unit between the mechanism.

In this scheme, this kind of battery transportation equipment is spacing on the perpendicular direction and the horizontal direction of gear on the flank of tooth of rack through setting up the back wheel group that is located the back of rack and gets the side of putting the mechanism towards the battery, can guarantee that the gear can mesh and can not deviate from on perpendicular direction and the horizontal direction on the flank of tooth for the gear can keep stable meshing with the rack, can lead spacingly to lifting movement through the back wheel group in addition, makes the transmission more stable. Each gear rack transmission structure is tightly attached to the rack in three directions through the gear and the back wheel set, so that the stress on the gear can be reduced, and the gear is not easy to damage. Therefore, the whole battery taking and placing mechanism enables the gears to be attached to the corresponding racks through the back wheel groups at multiple positions, so that the stable lifting of the battery taking and placing mechanism is realized, the lifting performance is improved, and the gear rack tooth stripping is avoided; simple structure and low cost.

Preferably, the rack of the rack and pinion transmission unit comprises an installation surface, the installation part comprises a plurality of upright posts, the rack is detachably connected to the corresponding upright posts through threaded blind holes pre-buried in the installation surface, and the installation surface is opposite to the side surface abutted against the back wheel.

In this scheme, the rack is installed on guiding mechanism through the edgewise, makes it contact with gear and stop gear respectively from three direction, realizes the centre gripping effect, ensures the degree of meshing, is favorable to promoting transmission stability.

The positive progress effects of the utility model are as follows: the utility model discloses a limiting mechanism for improving the lifting stability of battery transferring equipment and the battery transferring equipment, wherein a back wheel set which is arranged on the back of a rack and faces the side surface of a battery taking and placing mechanism is used for limiting a gear in the vertical direction and the horizontal direction on the tooth surface of the rack, so that the gear can be meshed on the tooth surface and cannot be separated from the vertical direction and the horizontal direction, the gear can be stably meshed with the rack, and the lifting movement can be guided and limited through the back wheel set, so that the transmission is more stable. Each gear rack transmission structure is tightly attached to the rack in three directions through the gear and the back wheel set, so that the stress on the gear can be reduced, and the gear is not easy to damage. Therefore, the whole battery taking and placing mechanism enables the gears to be attached to the corresponding racks through the back wheel groups at a plurality of positions, so that the stable lifting of the battery taking and placing mechanism is realized, the lifting performance is improved, and the gear rack gear-disengaging condition is avoided; simple structure and low cost.

Drawings

Fig. 1 is a schematic structural view of a battery transport apparatus according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a transmission mechanism according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a rack and pinion drive unit according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a limiting mechanism according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a fixing unit according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of a back wheel according to an embodiment of the present invention.

Description of reference numerals:

mounting part 100

Upright post 110

Battery pick and place mechanism 200

Transmission mechanism 300

Rack and pinion gear unit 310

Gear 311

Rack 312

Rotating shaft 320

Bearing 330

Motor 340

Limiting mechanism 400

Back wheel group 410

Back wheel 411

Mounting seat 412

Waist-shaped adjusting hole 413

Fixing unit 420

Base 421

Fixed plate 422

Detailed Description

The present invention will be more clearly and completely described in the following description of preferred embodiments, taken in conjunction with the accompanying drawings.

As shown in fig. 1, the embodiment provides a battery transportation device, where the battery transportation device is disposed in a battery replacing station and is used for taking and placing a battery from a battery rack in the battery replacing station. The battery transportation device includes a mounting portion 100 as a frame, the mounting portion 100 including 4 uprights 110 that collectively support the main structure of the battery transportation device. The battery transfer equipment further comprises a battery pick-and-place mechanism 200 for picking and placing batteries relative to any battery bin of the battery rack, wherein the battery pick-and-place mechanism 200 is connected to the 4 upright posts 110 and drives the battery pick-and-place mechanism 200 to move up and down along the vertical direction corresponding to the length direction of the upright posts 110 through a transmission mechanism 300. The transmission mechanism 300 includes a plurality of sets of rack and pinion transmission units 310 respectively disposed between the upright 110 of the mounting portion 100 and the battery pick-and-place mechanism 200, and moves up and down by rotating the rack 312 via the gear 311.

As shown in fig. 2, 3 and 4, the limiting mechanism 400 for improving the lifting stability of the battery transferring apparatus of the present embodiment includes a plurality of back wheel sets 410, which are disposed in a one-to-one correspondence with the plurality of sets of rack-and-pinion transmission units 310 and fixed at a preset position of the battery picking and placing mechanism 200, so as to position the positions of the gear 311 and the rack 312 in each set of rack-and-pinion transmission units 310. Each of the back wheel sets 410 includes two back wheels 411 attached to the back surface of the corresponding rack 312 at a predetermined angle and the side surface of the rack 312 facing the battery pick-and-place mechanism 200.

In this embodiment, the rack-and-pinion transmission unit 310 includes a rack 312 disposed on the upright 110 and a pinion 311 connected to the battery pick-and-place device. The rack 312 has four sides, the gear 311 is engaged with the tooth surface of the rack 312, one side of the rack 312 is used for connecting with the upright 110, and the back and the other side of the rack 312 are respectively contacted with the two back wheels 411 of the back wheel set 410 of the limiting mechanism 400.

Rack 312 is installed on guiding mechanism through a side, makes it contact with gear 311 and stop gear 400 respectively from three direction, realizes the centre gripping effect, promotes transmission stability.

The back wheel set 410 positioned on the back surface of the rack 312 and the side surface facing the battery taking and placing mechanism is used for limiting the vertical direction and the horizontal direction of the gear 311 on the tooth surface of the rack 312, so that the gear 311 can be meshed on the tooth surface and cannot be disengaged from the vertical direction and the horizontal direction. Make gear 311 can with rack 312 remain stable meshing, can lead to spacingly through the back of the body wheelset moreover to the lift removal for the transmission is more stable. Each gear rack transmission structure is closely attached to the rack 312 from three directions through the gear 311 and the back wheel set 410, so that the stress on the gear 311 can be reduced, and the gear 311 is not easy to damage. Therefore, the whole battery taking and placing mechanism enables the gears to be attached to the corresponding racks through the back wheel groups at a plurality of positions, so that the stable lifting of the battery taking and placing mechanism is realized, the lifting performance is improved, and the gear rack gear-disengaging condition is avoided; simple structure and low cost.

As shown in fig. 3 and 4, the number of the back wheel sets 410 and the number of the rack and pinion gear units 310 satisfy a multiple relationship that the number of the back wheel sets 410 is a multiple of the number of the rack and pinion gear units 310.

In the present embodiment, four sets of rack and pinion gear units 310 are provided at four corners of the battery pick and place mechanism 200, respectively. The back wheel set 410 is divided into 4 groups, and the 4 groups correspond to the rack-and-pinion transmission units 310 one by one. The two back wheel sets 410 respectively limit the same rack and pinion transmission unit 310. Lead to back wheel 411 and be the point contact, can make stop gear 400 multiple spot contact through setting up multiunit back wheel 411, spacing effect is better, and stability is higher.

In other embodiments, the number of the back wheel sets 410 corresponding to one set of the rack and pinion transmission unit 310 is not limited to two, and other numbers may be provided as long as multi-point contact is ensured.

As shown in fig. 3 and 4, when the number of the back wheel sets 410 is more than 2 times of the number of the rack and pinion gear units 310, the corresponding number of the back wheel sets 410 are disposed on the corresponding side of the battery pick and place mechanism 200 based on the average number of the back wheel sets 410 relative to the rack and pinion gear units 310, such that the gears 311 of the corresponding rack and pinion gear units 310 are located between the back wheel sets 410 at the upper and lower ends.

In this embodiment, the back wheel sets 410 corresponding to each rack-and-pinion transmission unit 310 are respectively disposed on the upper and lower sides of the contact position between the gear 311 and the rack 312, so that the gear 311 is located between the point contact positions of the back wheel 411, the distances between the contact position between the tooth surface of the rack 312 and the gear 311 and the contact position between the back surface and the side surface of the rack 312 and the back wheel 411 are equal, the forces on the two sides of the rack 312 are more balanced, and the gear 311 is more stably limited on the rack 312.

In other embodiments, the distance between the gear 311 and the two back wheels 411 is set to be different, and a relatively stable limiting effect can also be achieved, but the torque between the two back wheels 411 is not equal, and the stability is poor.

Set up the back of the body wheelset respectively in the upper and lower both sides of gear and can better carry out spacingly to the gear, prevent to lose the tooth, spacing effect is better.

As shown in fig. 4 and 5, the plurality of back wheel sets 410 disposed in the same region and the rotating shaft 320 of the corresponding gear 311 are fixed to be an integral structure by the fixing unit 420.

In this embodiment, the limiting mechanism 400 includes a fixing unit 420, and the fixing unit 420 is a connecting structure disposed at a corner of the battery pick-and-place mechanism 200 and used for mounting the back wheel set 410. The fixing units 420 are in one-to-one correspondence with the rack and pinion transmission units 310, and the back wheel sets 410 corresponding to the rack and pinion transmission units 310 are disposed on the fixing units 420. The gear 311 is driven by a rotating shaft 320, and the rotating shaft 320 is connected to a motor 340 disposed on the battery pick-and-place mechanism 200. The rotating shaft 320 is limited on the bearing 330 fixed with the battery transferring mechanism, and the gear 311 is indirectly connected to the battery transferring mechanism through the rotating shaft 320 and can drive the battery transferring mechanism to move up and down. The bearing 330 is also fixed to the fixing unit 420. So that the back wheel set 410 and the corresponding gear 311 and the rotating shaft 320 can be fixed into an integral structure, the degree of engagement between the gear and the rack can be conveniently adjusted, and the strength of the connecting position can be increased.

As shown in fig. 5, the fixing unit 420 includes a base 421 extending and fixedly disposed along the height direction of the battery pick-and-place mechanism 200, and a plurality of fixing plates fixed on the base 421 in the horizontal direction, and the back wheel sets 410 are correspondingly disposed on the fixing plates.

In the present embodiment, the base 421 extends along the height direction of the battery pick-and-place mechanism 200, and is used for being connected and fixed with the battery pick-and-place mechanism 200 and the bearing 330. The fixing plates 422 are disposed at the top and bottom ends of the base 421, and the two back wheel sets 410 corresponding to the rack-and-pinion transmission unit 310 are respectively fixed on the two fixing plates 422 at the top and bottom of the base 421. The single back wheel set 410 is integrally fixed on the fixing plate corresponding to the fixing base 421, so that the back wheel set 410 is tightly attached to the rack 312, and the meshing degree of the gear and the rack and the guiding and limiting functions are improved.

As shown in fig. 5, the fixing plate has a concave portion matching with the back and side of the corresponding rack 312, so that the back wheel set 410 is tightly attached to the contact surface of the rack 312.

In this embodiment, a notch is formed at an angle where the fixing plate 422 contacts the upright 110 of the mounting portion 100, so that the rack 312 can be embedded into the notch, and both the back and the side of the rack 312 can face the fixing plate 422, and the fitting degree is convenient to adjust, thereby facilitating the mounting of the back wheel 411.

As shown in fig. 5 and 6, each of the back wheels 411 is fixed on a corresponding position of the fixing plate by a mounting seat 412, and the mounting seat 412 has a through hole for fixedly connecting with the fixing plate, and the through hole is a waist-shaped adjusting hole 413 extending towards the rack 312.

In this embodiment, the back wheel 411 is installed in the installation seat 412, and the installation seat 412 is fixed on the fixing plate 422 by bolts. The mounting base 412 has a waist-shaped adjusting hole 413 extending toward the rack 312, and the bolt passes through the waist-shaped adjusting hole 413 and is connected to the through hole of the fixing plate 422. Through setting up the waist type regulation hole 413 that has certain extending direction, can adjust the mounted position of back wheel 411 through the different positions of adjusting the hole 413 with the bolt fastening to be close to or keep away from rack 312, thereby guarantee the laminating degree of back wheel 411 and the back or the side of rack 312.

In this embodiment, the adjusting holes on the mounting seat 412 and the through holes on the mounting portion are all waist-shaped holes extending toward the rack 312, and a plurality of adjusting holes and through holes are disposed at different positions of the adjusting holes and the through holes, so that the connection is more stable, and the adjusting degree of freedom is higher. In other embodiments, only the mounting base 412 or the fixing plate 422 may be provided with a connecting hole whose position can be adjusted, and only the common through hole may be provided on the other side, and the number of the adjusting holes and the number of the through holes may be flexibly set.

The position of the back wheel 411 is adjustable, so that the back wheel 411 can be adapted to the gear rack transmission units 310 with different specifications, and the back wheel 411 can be attached to the side and the back of the rack 312.

As shown in fig. 3 and 4, the fixing unit 420 further includes a bearing 330 seat fixed on the base 421 adjacent to the rack 312, and the rotating shaft 320 of the gear 311 is connected to the gear 311 through the bearing 330 arranged in the bearing 330 seat to drive the gear 311 to rotate.

In this embodiment, the bearing 330 is disposed on the base 421, and is connected to the bearing 330 by bolts.

The driving gear 311 is driven by the rotating shaft 320, the gear 311 and the fixed base 421 are connected together by adopting a hole-shaft connection mode and are integrated with the limiting mechanism 400, so that the meshing degree of the gear and the rack can be integrally adjusted, and the strength of the connection position can be increased.

In this scheme, rack 312 is through the non-back, and the one side of flank and side is installed on guiding mechanism, makes it contact with gear 311 and stop gear 400 respectively from three direction, realizes the centre gripping effect, promotes transmission stability.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications are within the scope of the utility model.

Claims

1. The utility model provides a stop gear for improving battery transportation equipment lift stability, battery transportation equipment are close to and have a plurality of battery racks settings that are used for depositing the battery package, battery transportation equipment is including neighbouring the installation department that battery racks set up, be used for relatively the battery that battery rack's arbitrary battery position in storehouse carried out the battery and gets and put mechanism and drive the battery is got and is put the drive mechanism that mechanism lift was removed, drive mechanism is including locating respectively the installation department with the battery is got and is put multiunit rack and pinion drive unit between the mechanism, a serial communication port, stop gear includes:

the back wheel sets are arranged corresponding to the gear rack transmission units one by one and fixed on preset positions of the battery taking and placing mechanism so as to position the gears and racks in each gear rack transmission unit;

each back wheel set comprises two back wheels which are attached to the back of the corresponding rack at a preset angle and the side face, facing the battery taking and placing mechanism, of the rack.

2. The limiting mechanism for improving the lifting stability of the battery transferring equipment according to claim 1, wherein the number of the back wheel sets and the number of the rack and pinion transmission units satisfy a multiple relation that the number of the back wheel sets is a multiple of the number of the rack and pinion transmission units.

3. The limiting mechanism for improving the lifting stability of battery transportation equipment as claimed in claim 2, wherein when the number of the back wheel sets is more than 2 times of the number of the rack-and-pinion transmission units, a corresponding number of the back wheel sets are disposed on the corresponding side of the battery pick-and-place mechanism based on the average number of the back wheel sets relative to the rack-and-pinion transmission units, so that the gears of the rack-and-pinion transmission units are located between the back wheel sets at the upper and lower ends.

4. The limiting mechanism for improving the lifting stability of the battery transferring equipment according to claim 1, wherein a plurality of back wheel sets disposed in the same region and the rotating shafts of the corresponding gears are fixed to form an integral structure through a fixing unit.

5. The limiting mechanism for improving the lifting stability of the battery transferring equipment according to claim 4, wherein the fixing unit comprises a base extending and fixedly arranged along the height direction of the battery picking and placing mechanism and a plurality of fixing plates fixed on the base in the horizontal direction, and the back wheel sets are correspondingly arranged on the fixing plates one to one.

6. The limiting mechanism for improving the lifting stability of the battery transfer equipment as claimed in claim 5, wherein the fixing plate is provided with a concave part matched with the back surface and the side surface of the corresponding rack, so that the back wheel set is tightly attached to the contact surface of the rack.

7. The limiting mechanism for improving the lifting stability of the battery transferring apparatus according to claim 5, wherein each of the back wheels is fixed on a corresponding position of the fixing plate through a mounting seat, the mounting seat has a through hole for fixedly connecting with the fixing plate, and the through hole is a waist-shaped adjusting hole extending towards the rack.

8. The limiting mechanism for improving the lifting stability of the battery transferring equipment according to claim 5, wherein the fixing unit further comprises a bearing seat fixed on the base adjacent to the rack, and the rotating shaft of the gear is connected to the gear through a bearing arranged in the bearing seat so as to drive the gear to rotate.

9. The utility model provides a battery transportation equipment, its characterized in that, battery transportation equipment is close to and has a plurality of battery rack settings that are used for depositing the battery package, battery transportation equipment includes the neighbouring installation department that battery rack set up, be used for relatively the battery that battery rack's arbitrary battery position in a storehouse was put the mechanism, is driven the battery is got and is put the mechanism elevating movement's of mechanism drive mechanism and according to any one of claims 1 to 8 stop gear, drive mechanism including locating respectively the installation department with the battery is got and is put the multiunit rack and pinion drive unit between the mechanism.

10. The battery transfer apparatus according to claim 9, wherein the rack of the rack-and-pinion transmission unit includes an installation surface, the installation portion includes a plurality of columns, the rack is detachably connected to the corresponding column through a threaded blind hole pre-embedded in the installation surface, and the installation surface is disposed opposite to a side surface against which the back wheel abuts.