CN216761509U

CN216761509U - Driving device for improving lifting synchronism of battery transfer equipment and battery transfer equipment

Info

Publication number: CN216761509U
Application number: CN202123013098.9U
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 driving device for improving the lifting synchronism of battery transferring equipment and the battery transferring equipment, wherein the driving device is used for driving a plurality of groups of gear rack transmission units to drive a battery taking and placing mechanism to move up and down, the driving device comprises two driving units which are respectively arranged on two sides of the battery taking and placing mechanism, and the driving units comprise: two ends of the synchronizing shaft are respectively connected with the gears in the gear rack transmission units at the corresponding two ends; and the rotating assembly is connected with an output shaft of a driving motor for providing power and the synchronizing shaft so as to drive the synchronizing shaft to rotate. According to the driving device for improving the lifting synchronism of the battery transfer equipment and the battery transfer equipment comprising the driving device, two groups of gear rack transmission units are driven to rotate through one synchronous shaft, so that two gears can be guaranteed to be always positioned at the same horizontal height and rotate at the same speed, the synchronous motion of a transmission mechanism is realized, the battery taking and placing mechanism can be guaranteed to be lifted stably, and the batteries can be taken and placed conveniently.

Description

Driving device for improving lifting synchronism of battery transfer equipment and battery transfer equipment

Technical Field

The utility model relates to the field of battery replacement stations, in particular to a driving device for improving lifting synchronism of battery transfer equipment and the battery transfer equipment comprising the driving device.

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 which is insufficient in power is replaced and the fully charged battery pack is installed in the power replacing 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 provided with: the battery pack charging device comprises battery replacing equipment for disassembling or assembling a battery, 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 the batteries are transferred among 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. If adopt its lift of rack and pinion meshing drive, because the independence of a plurality of rack and pinion structures, lead to the difficult control of the levelness of the lift removal of car, reduce battery transportation efficiency. Battery pick and place mechanism.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defect that in the prior art, a battery transfer device in a battery replacement station adopts a gear and rack transmission mode to realize lifting, so that levelness is difficult to control in the lifting process and the battery transfer efficiency is reduced, and provides a driving device for improving the lifting synchronism of battery transfer equipment and the battery transfer equipment comprising the driving device.

The utility model provides an improve drive arrangement of battery transportation equipment lift synchronism, battery transportation equipment are close to have a plurality of battery position battery racks settings that are used for depositing the battery package and are used for carrying out the battery transportation between the battery position, battery transportation equipment includes neighbouring the installation department that battery rack set up, be used for getting the battery of putting to arbitrary battery position and get the mechanism and drive the drive mechanism that the mechanism lift was removed is got to the battery, drive mechanism is including locating respectively the battery get the both sides position of mechanism and the multiunit rack and pinion drive unit between the installation department, drive arrangement is used for driving multiunit rack and pinion drive unit drives the mechanism lift removal is got to the battery, its characteristics are that, drive arrangement is including locating respectively two drive units of the both sides of mechanism are got to the battery with the drive lie in a plurality of the rack and pinion drive unit synchronous lift removal of homonymy,

the driving unit includes:

two ends of the synchronous shaft are respectively connected with the gears in the gear rack transmission units at the corresponding two ends;

and the rotating component is connected with an output shaft of a driving motor for providing power and the synchronizing shaft so as to drive the synchronizing shaft to rotate.

In this scheme, adopt above-mentioned structure, two sets of rack and pinion drive units rotate through a synchronizing shaft drive, can guarantee that two gears are located same level all the time and rotatory according to the same speed, realize two sets of rack and pinion drive unit synchronous motion to realize drive mechanism's synchronous motion, guarantee that the battery is got and is put mechanism and can steadily go up and down, ensure the levelness, conveniently get and put the battery, improve battery transportation efficiency.

Preferably, the number of the gear rack transmission units is four, the gear rack transmission units are respectively arranged on the end angle positions on the two sides of the battery taking and placing mechanism,

bearing fixing seats are arranged on two sides of the battery taking and placing mechanism close to the edge, and two ends of the synchronizing shaft are respectively matched with corresponding bearings in the bearing fixing seats and then extend out to be connected with corresponding gears.

In this scheme, adopt above-mentioned structure, get from the battery through the bearing frame and put the position that the mechanism both sides are close to the gear and carry on spacingly to the synchronizing shaft, ensure the levelness of synchronizing shaft mounted position, prevent that the synchronizing shaft self from taking place the slope and leading to the rack and pinion drive unit at both ends asynchronous and make the battery get put the mechanism and take place the slope to improve the reliability that the battery got and put the mechanism lift and move.

Preferably, the bearing is a spherical bearing or a spherical plain bearing.

In this scheme, adopt above-mentioned structure, select for use spherical bearing or joint bearing can satisfy the uniformity demand at synchronizing shaft both ends, take place slope slightly and when asynchronous, balance through the bearing, ensure that the battery is got and is put mechanism and still can normally lift removal, improve the reliability. In addition, under the limit condition, even if the gears at the two ends are inconsistent, the synchronous shaft can maintain the condition that the two ends are unbalanced through the bearing, and the damage to equipment is avoided.

Preferably, the mounting part comprises a frame with four upright posts, and the battery taking and placing mechanism is arranged in the frame and can move in a lifting manner;

the driving device further comprises a control device, wherein the control device comprises position sensors which are respectively arranged at two ends of the battery taking and placing mechanism, which are close to the synchronizing shaft, and a control module which is used for respectively controlling the start and stop of any driving motor according to the detection results of the two position sensors.

In the scheme, by adopting the structure, the control device monitors the height data of the two ends of the battery pick-and-place mechanism in real time through the position sensors respectively arranged at the two ends of the battery pick-and-place mechanism, and the control module performs matching control on the driving motor according to the measured height data; if the height data is judged to be in the preset error range through the control module, if the height data exceeds the preset error range, the control module controls the gear on one side to move by respectively adjusting the starting and stopping of the driving motors on the two sides so as to eliminate the height difference on the two sides and keep the two ends of the battery taking and placing mechanism horizontal.

Preferably, a detection plate matched with the position sensor is arranged at a preset position at the bottom of the frame, and the position sensor detects the horizontal information of the battery pick-and-place mechanism through the detection plate.

In this scheme, adopt above-mentioned structure, the pick-up plate that preset position at the frame bottom set up that position sensor can detect is as the detection standard, and position sensor can obtain the height data of this side of battery pick-and-place mechanism as long as detect its distance data with the pick-up plate, improves the accuracy of testing result.

Preferably, the control device further comprises reset sensors arranged at two ends of the four upright posts corresponding to the lifting stroke of the battery pick-and-place mechanism, and the control module controls the driving motor to start and stop according to the detection result of the reset sensors so as to reset the battery pick-and-place mechanism and adjust the battery pick-and-place mechanism to be in a horizontal state.

In this scheme, adopt above-mentioned structure, be provided with reset sensor at the starting point of battery pick and place mechanism stroke and terminal point position on the stand, when the battery pick and place the mechanism and be located stroke starting point and terminal point, reset sensor can detect the positional information of battery pick and place mechanism, and control module then adjusts both sides height according to information control battery pick and place mechanism, makes it can reset again at starting point and terminal point and be located same level, reduces asynchronous trouble and takes place, improves lift movement's stability and battery transportation efficiency.

Preferably, the rack-and-pinion transmission unit includes a rack disposed on the upright, and a pinion disposed at a predetermined position of the battery pick-and-place mechanism and engaged with the rack, the transmission mechanism further includes a plurality of back wheel sets disposed at the predetermined position of the battery pick-and-place mechanism, and each back wheel set includes two back wheels respectively abutting against the back and the side of the rack.

In this scheme, adopt above-mentioned structure, realize the edgewise and back butt rack through a back of the body wheel group, make gear and rack closely laminate, like this, the gear at the both ends of connecting through synchronizing shaft is spacing and the direction of back of the body wheel group down, and the rack carries out synchronous lifting movement relatively, avoids taking place the asynchronous condition to improve battery transportation efficiency.

Preferably, the number of the plurality of back wheel sets is such that at least one back wheel set is respectively disposed at the upper and lower sides of the gear.

In this scheme, adopt above-mentioned structure, carry out spacing and direction from the upper and lower both sides of gear through two at least back wheelsets, make the gear can not take place with the condition of rack skew in the horizontal direction, improve both ends synchronous movement's reliability and efficiency.

Preferably, the rotating assembly comprises a driving wheel, a driven wheel and a synchronous belt, wherein the driving wheel and the driven wheel are respectively sleeved on the output shaft of the driving motor and the synchronous shaft, and the synchronous belt is used for transmitting between the driving wheel and the driven wheel.

In this scheme, adopt above-mentioned structure, two sets of rack and pinion drive units rotate through a synchronizing shaft drive, are equipped with from the driving wheel on the synchronizing shaft, are connected through a hold-in range and the action wheel on the driving motor and realize the transmission to realize drive mechanism's synchronous motion, guarantee that the battery is got and is put the mechanism and can steadily go up and down.

A battery transfer device comprises an installation part, wherein the installation part comprises stand columns arranged at four corners of the battery transfer device, a battery taking and placing mechanism is arranged on the installation part and can lift up and down along the stand columns, and the battery transfer device further comprises a driving device for improving the lifting synchronism of the battery transfer device;

the driving device comprises two driving units which are respectively arranged on two sides of the battery taking and placing mechanism so as to drive the two rack and pinion transmission units on the two upright columns on the same side to synchronously move up and down;

the driving unit comprises synchronizing shafts, two ends of each synchronizing shaft are respectively connected with the gears in the gear rack transmission units, the driving device further comprises rotating assemblies used for driving the synchronizing shafts and the gears to rotate, and motors of the rotating assemblies are arranged on two sides of the battery taking and placing mechanism.

In this scheme, adopt above-mentioned structure, battery transportation equipment supports through an installation department, four stands are equipped with to four angles of installation department, the battery is got and is put mechanism and is realized the oscilaltion through the multiunit rack and pinion drive unit that sets up on the stand, and the gear of two sets of rack and pinion drive units of its one side is by a synchronizing shaft synchronous drive, guarantee that two gears are located same level all the time and rotatory according to the same speed, thereby realize drive mechanism's simultaneous movement, guarantee that the battery is got and is put the mechanism and can steadily go up and down, ensure the levelness, conveniently get and put the battery, it gets and puts the mechanism to improve battery transportation efficiency battery and get

The positive progress effects of the utility model are as follows: the utility model discloses a driving device for improving the lifting synchronism of battery transferring equipment and the battery transferring equipment, wherein two groups of gear and rack transmission units are driven to rotate by a synchronous shaft, so that two gears can be ensured to be always positioned at the same horizontal height and rotate at the same speed, and the synchronous motion of the two groups of gear and rack transmission units is realized, thereby realizing the synchronous motion of a transmission mechanism, ensuring the stable lifting of a battery taking and placing mechanism, ensuring the levelness, facilitating the taking and placing of batteries and improving the transferring efficiency of the batteries.

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 driving device according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a limit switch 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

Driving device 600

Synchronizing shaft 610

Rotating assembly 620

Driving motor 621

Driving wheel 622

Driven wheel 623

Synchronous belt 624

Bearing fixing seat 630

Bearing 631

Limit switch 643

Back wheel group 410

Back wheel 411

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 present embodiment provides a driving device 600 for improving the lifting synchronization of a battery transportation device and a battery transportation device.

The battery transportation device in this embodiment is disposed near a battery rack (not shown in the figure) having a plurality of battery positions for storing battery packs and is used for transporting batteries between the battery positions, the battery transportation device includes a mounting portion 100 disposed adjacent to the battery rack, a battery pick-and-place mechanism 200 for picking and placing batteries at any battery position, and a transmission mechanism 300 for driving the battery pick-and-place mechanism 200 to move up and down, the transmission mechanism 300 includes a plurality of sets of rack and pinion transmission units 310 respectively disposed between two side positions of the battery pick-and-place mechanism 200 and the mounting portion 100, a driving device 600 is used for driving the plurality of sets of rack and pinion transmission units 310 to drive the battery pick-and-place mechanism 200 to move up and down, a driving device 600 includes two driving units respectively disposed at two sides of the battery pick-and-place mechanism 200 to drive the plurality of rack and pinion transmission units 310 located at the same side to move up and down synchronously,

the drive unit includes:

two ends of the synchronous shaft 610 are respectively connected with the gears 311 in the gear rack transmission units 310 at the two corresponding ends;

the rotating unit 620 connects an output shaft (not shown) of a driving motor 621 for supplying power with the synchronizing shaft 610 to rotate the synchronizing shaft 610.

In this embodiment, the battery transfer device and the battery rack are both arranged inside the battery replacement station, and the battery transfer device is used for taking and placing the battery from the battery rack on which the battery is placed. The battery transfer apparatus 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 transfer apparatus. 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 is moved up and down by rotating a gear 311 on a rack 312. The transmission mechanism 300 of the present embodiment is driven by a driving unit, which is disposed at both sides of the battery pick-and-place mechanism 200 and is connected to the gears 311 of the two rack-and-pinion transmission units 310 at one side through a synchronizing shaft 610. The driving unit is driven by a rotating component 620, one end of the rotating component 620 is connected to an output shaft of a driving motor 621 disposed on the side of the battery pick-and-place mechanism 200, and the other end is connected to the synchronizing shaft 610 to drive the synchronizing shaft 610 to rotate.

The driving motor 621 is used as a power source, and is connected with a driving wheel 622 arranged on an output shaft thereof and a driven wheel 623 arranged on the synchronizing shaft 610 through a synchronous belt 624 to directly drive the synchronizing shaft 610 to rotate, so as to drive the gears 311 at two ends of the synchronizing shaft 610 to rotate and drive the multiple sets of gear-rack transmission units 310 to synchronously move, and thus, the stable lifting of the battery pick-and-place mechanism is realized.

The two sets of gear and rack transmission units 310 are driven to rotate by the synchronizing shaft 610, so that the two gears 311 are always positioned at the same horizontal height and rotate at the same speed, and the two sets of gear and rack transmission units 310 synchronously move, so that the synchronous movement of the transmission mechanism 300 is realized, the battery taking and placing mechanism 200 can be stably lifted, the levelness is ensured, and the battery transfer efficiency is improved.

As shown in fig. 1 and 2, the number of the rack-and-pinion transmission units 310 is four, and the four rack-and-pinion transmission units are respectively disposed at the end angle positions of the two sides of the battery pick-and-place mechanism 200, the bearing fixing seats 630 are disposed at the positions close to the edges of the two sides of the battery pick-and-place mechanism 200, and the two ends of the synchronization shaft 610 respectively cooperate with the bearings 631 in the corresponding bearing fixing seats 630 and then extend to connect the corresponding gears 311.

In the present embodiment, the rack and pinion transmission unit 310 corresponds to four upright posts 110 of the frame one by one, and the rack and pinion transmission unit 310 includes a rack 312 disposed on the upright posts 110 and a gear 311 connected to the battery pick-and-place device. The gear 311 engages the tooth surface of the rack 312. The upright post 110 and the corresponding rack and pinion transmission unit 310 are disposed at the corner of the battery pick-and-place mechanism 200. The synchronous shaft 610 is located at both sides of the battery pick-and-place mechanism 200, and both ends thereof are respectively connected with the gears 311 of the rack and pinion transmission unit 310 at the two end angles through the bearing fixing seats 630 fixed at both sides of the battery pick-and-place mechanism 200.

The synchronous shaft 610 is limited from the positions, close to the gears 311, on the two sides of the battery picking and placing mechanism 200 through the bearing seats, the levelness of the installation position of the synchronous shaft 610 is ensured, the phenomenon that the battery picking and placing mechanism 200 inclines due to the fact that the gear rack transmission units 310 on the two ends are asynchronous due to the inclination of the synchronous shaft 610 is prevented, and therefore the reliability of the lifting and moving of the battery picking and placing mechanism 200 is improved.

As shown in fig. 2 to 4, the bearing 631 is a spherical bearing 631 or a spherical plain bearing 631. In this embodiment, the spherical bearing 631 is used for the connection.

The spherical bearing 631 or the spherical joint bearing 631 is selected to meet the requirement for consistency at two ends of the synchronous shaft, and when the synchronous shaft is slightly inclined and asynchronous, the balance is carried out through the bearing, so that the battery taking and placing mechanism can still normally lift and move, and the reliability is improved. In addition, under the limit condition, even if the gears at the two ends are inconsistent, the synchronous shaft can maintain the condition that the two ends are unbalanced through the bearing, and the damage to equipment is avoided.

As shown in fig. 1, the mounting part 100 includes a frame having four vertical posts 110, and the battery pick-and-place mechanism 200 is disposed in the frame and is movable up and down. The driving device 600 further comprises a control device (not shown in the figure), wherein the control device comprises position sensors respectively arranged at two ends of the battery pick-and-place mechanism 200 close to the synchronizing shaft 610, and a control module for respectively controlling the start and stop of any driving motor 621 according to the detection results of the two position sensors.

The control device monitors height data of two ends of the battery pick-and-place mechanism 200 in real time through position sensors respectively arranged at two ends of the battery pick-and-place mechanism 200, and the control module performs matching control on the driving motor according to the measured height data; if the height data is judged to be within the preset error range through the control module, if the height data exceeds the preset error range, the control module controls the movement of the gear 311 on one side by respectively adjusting the start and stop of the driving motors 621 on two sides, so as to eliminate the height difference on two sides and keep two ends of the battery pick-and-place mechanism 200 horizontal.

In the present embodiment, the position sensors are distance measuring sensors disposed at both sides of the bottom of the battery pick-and-place mechanism 200, which can obtain height information of the side of the battery pick-and-place mechanism 200 by detecting the distance between the battery pick-and-place mechanism 200 and the bottom of the frame. The control module determines whether the battery pick-and-place mechanism 200 is horizontal by comparing whether the height data of the two sides are consistent. If the height data of the two sides are not consistent, the control module controls the driving motor 621 of one side to stop working, and controls the driving motor 621 of the other side to move until the height data of the two sides are the same, so as to complete adjustment.

The position sensor can be a laser ranging sensor or an infrared ranging sensor.

A detection plate (not shown) is provided at a predetermined position of the bottom of the frame to be matched with the position sensor, and the position sensor detects the horizontal information of the battery pick-and-place mechanism 200 through the detection plate.

A detection board which can be detected by a position sensor is arranged at a preset position at the bottom of the frame and serves as a detection standard, and the height data of the side of the battery pick-and-place mechanism 200 can be obtained by detecting the distance data between the position sensor and the detection board by the position sensor, so that the accuracy of a detection result is improved.

In the present embodiment, the detection plate is disposed on a projection of the position sensor in the vertical direction. The position sensor is arranged opposite to the detection plate and emits laser or infrared rays to the detection plate to measure the distance between the position sensor and the detection plate. The surface of the detection plate is smooth and horizontally placed to reduce errors.

In other embodiments, a plurality of bearing holders 630 and bearings 631 may be provided to ensure that the plurality of bearings 631 are located at the same horizontal level, and each synchronization shaft 610 may pass through the plurality of bearings 631 on the same side of the battery pick-and-place mechanism 200.

The control device further includes reset sensors (not shown in the figure) disposed at two ends of the four columns 110 corresponding to the lifting stroke of the battery pick-and-place mechanism 200, and the control module controls the start and stop of the driving motor 621 according to the detection results of the reset sensors to reset the battery pick-and-place mechanism 200 so as to adjust the battery pick-and-place mechanism to a horizontal state.

In this embodiment, the reset sensor is a reset sensor disposed at the bottom starting point of the battery taking and placing device at the bottom end of the upright column 110, and the reset sensor in fig. 5 is a reset sensor disposed at the top end point of the battery taking and placing device at the top end of the upright column 110. When the battery taking and placing device is located at the starting point and the end point, the reset sensor can sense and output a signal to the control module, and the control module can stop driving the motor 621 according to the signal and perform adjustment.

The upright post 110 is provided with reset sensors at the starting point and the end point of the stroke of the battery pick-and-place mechanism 200, when the battery pick-and-place mechanism 200 is located at the starting point and the end point of the stroke, the reset sensors can detect the position information of the battery pick-and-place mechanism 200, and the control module controls the battery pick-and-place mechanism 200 to adjust the heights of the two sides according to the information, so that the battery pick-and-place mechanism can be reset at the starting point and the end point to be located at the same horizontal height.

As shown in fig. 4 and 5, in the present embodiment, the upright post is provided with limit switches 643 at the starting point and the end point of the stroke of the battery pick-and-place mechanism 200, and when the battery pick-and-place mechanism 200 moves to the limit positions of the starting point and the end point, the limit switches 643 are contacted and trigger a stop signal to turn off the motor, so as to prevent the battery pick-and-place mechanism 200 from being damaged.

As shown in fig. 2 and 3, the rack-and-pinion transmission unit 310 includes a rack 312 disposed on the upright 110, and a pinion 311 disposed at a predetermined position of the battery pick-and-place mechanism 200 and engaged with the rack 312, the transmission mechanism 300 further includes a plurality of back wheel sets 410 disposed at predetermined positions of the battery pick-and-place mechanism 200, and each back wheel set 410 includes two back wheels 411 abutting against a back surface and a side surface of the rack 312.

Realize from side and back butt rack 312 through a back of the body wheelset 410, make gear 311 and rack 312 closely laminate, like this, the gear 311 at the both ends of connecting through synchronizing shaft 610 is under back of the body wheelset 410 spacing and direction, can carry out synchronous lift removal by rack 312 relatively, avoids taking place asynchronous condition to improve battery transportation efficiency. As shown in fig. 2 and 3, the number of the plurality of back wheel sets 410 is such that at least one back wheel set 410 is disposed on each of the upper and lower sides of the gear 311.

The gear 311 is limited and guided from the upper side and the lower side of the gear 311 through at least two back wheel sets 410, so that the gear 311 cannot deviate from the rack 312 in the horizontal direction, and the reliability and the efficiency of synchronous movement of the two ends are improved.

In this embodiment, the back and the side of the rack 312 are supported and limited by the back wheel set 410, and the back wheel set 410 is disposed on a base fixed to the battery pick-and-place mechanism 200 and contacts with the back and the side of the rack 312 through the back wheel 411. The back wheel set 410 is fixed to the bearing fixing base 630 to enhance the strength. The back wheel sets 410 are respectively disposed at the upper and lower sides of the bearing fixing base 630, and are symmetrical to each other,

as shown in fig. 2 and 4, the rotating assembly 620 includes a driving pulley 622 and a driven pulley 623 respectively sleeved on the output shaft of the driving motor 621 and the synchronizing shaft 610, and a timing belt 624 driven between the driving pulley 622 and the driven pulley 623.

The two sets of gear rack transmission units 310 are driven to rotate by a synchronizing shaft 610, a driven wheel 623 is arranged on the synchronizing shaft 610, and a synchronous belt 624 is connected with a driving wheel 622 on a driving motor 621 to realize transmission, so that synchronous motion of the transmission mechanism 300 is realized, and the battery taking and placing mechanism can be ensured to be lifted stably.

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 being referred to must have a particular orientation, be constructed and operated in a particular orientation, 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 an improve drive arrangement of battery transportation equipment lift synchronism, battery transportation equipment is close to the battery frame setting that has a plurality of battery positions that are used for depositing the battery package and is used for carrying out the battery transportation between the battery position, battery transportation equipment includes neighbouring the installation department that battery frame set up, be used for getting the battery of putting arbitrary battery position and get the mechanism and drive the drive mechanism that the mechanism goes up and down to remove, drive mechanism is including locating respectively the battery get the both sides position of putting the mechanism and the multiunit rack and pinion drive unit between the installation department, drive arrangement is used for driving the multiunit rack and pinion drive unit drives the mechanism goes up and down to remove of battery, its characterized in that, drive arrangement is including locating respectively two drive units of the both sides of the mechanism are got to the battery with the drive lie in a plurality of the rack and pinion drive unit synchronous lift removal of homonymy, the driving unit includes:

2. The driving device for improving the ascending and descending synchronism of the battery transfer equipment according to claim 1, wherein the number of the rack and pinion transmission units is four, and the four rack and pinion transmission units are respectively arranged at the end angle positions of the two sides of the battery taking and placing mechanism,

3. The drive device for improving the lifting synchronism of the battery transfer equipment according to claim 2, wherein the bearing is a spherical bearing or a spherical joint bearing.

4. The driving device for improving the ascending and descending synchronism of the battery transportation equipment according to claim 1, wherein the mounting portion comprises a frame having four upright posts, and the battery taking and placing mechanism is arranged in the frame and can move up and down;

5. The driving device for improving the lifting synchronism of the battery transfer equipment as claimed in claim 4, wherein a detection board matched with the position sensor is provided on a preset position of the bottom of the frame, and the position sensor detects the horizontal information of the battery pick-and-place mechanism through the detection board.

6. The driving device for improving the lifting synchronization of the battery transfer equipment according to claim 5, wherein the control device further includes reset sensors disposed at two ends of the four columns corresponding to the lifting stroke of the battery pick-and-place mechanism, and the control module controls the start and stop of the driving motor according to the detection result of the reset sensors to reset the battery pick-and-place mechanism so as to adjust the battery pick-and-place mechanism to a horizontal state.

7. The driving device for improving the ascending and descending synchronization of the battery transportation equipment according to claim 4, wherein the rack-and-pinion transmission unit comprises a rack disposed on the upright and a pinion disposed at a predetermined position of the battery pick-and-place mechanism and engaged with the rack, the transmission mechanism further comprises a plurality of back wheel sets disposed at the predetermined position of the battery pick-and-place mechanism, and the back wheel sets comprise two back wheels respectively abutting against the back and the side of the rack.

8. The driving device for improving the ascending and descending synchronism of the battery transportation equipment according to claim 7, wherein the number of the plurality of back wheel sets is such that at least one back wheel set is respectively disposed at the upper and lower sides of the gear.

9. The driving device for improving the ascending and descending synchronism of the battery transportation equipment as claimed in claim 1, wherein the rotating assembly includes a driving wheel and a driven wheel respectively sleeved on the output shaft of the driving motor and the synchronizing shaft, and a synchronous belt driven between the driving wheel and the driven wheel.

10. A battery transfer device, comprising a mounting portion, wherein the mounting portion comprises a frame having pillars disposed at four corners of the battery transfer device, and a battery pick-and-place mechanism is disposed on the mounting portion and can move up and down along the pillars, the battery transfer device further comprising a driving device according to any one of claims 1 to 9 for improving the lifting synchronization of the battery transfer device;

the driving device comprises two driving units which are respectively arranged on two sides of the battery taking and placing mechanism so as to drive two rack and pinion transmission units on two upright posts on the same side to synchronously move up and down;

the driving unit comprises synchronizing shafts, two ends of each synchronizing shaft are respectively connected with the two gears in the gear rack transmission unit, the driving device further comprises a rotating assembly, the rotating assemblies are used for driving the synchronizing shafts to drive the gears to rotate, and motors of the rotating assemblies are arranged on two sides of the battery taking and placing mechanism.