CN219408279U - Battery package conveyer - Google Patents

Abstract

The utility model discloses a battery pack conveying device which comprises an X-axis beam, a Y-axis beam and a lifting device, wherein the Y-axis beam is movably arranged on the X-axis beam through a first walking frame, the lifting device is movably arranged on the Y-axis beam through a second walking frame, a double-shaft motor is fixedly arranged on the first walking frame, output ends at two ends of the double-shaft motor drive the first walking frame to move along the length direction of the X-axis beam through transmission components respectively, the first walking frame is in movable fit with the X-axis beam through a roller structure, the second walking frame is in sliding fit with the Y-axis beam through a sliding structure, and a driving motor is arranged on the second walking frame and drives the lifting device to move along the length direction of the Y-axis beam. The utility model has the following advantages and effects: the new mechanical structure of this scheme utilization has accurate, the operation is stable, anticreep fall, long service life's effect.

Description

Battery package conveyer

Technical Field

The utility model relates to the technical field of automatic battery pack transportation, in particular to a battery pack transportation device.

Background

The traditional Chinese patent with the publication number of CN216442557U discloses an MGL-150 truss manipulator module, which comprises a main frame, a lifting arm and a walking beam, wherein the left side and the right side of the main frame are movably and fixedly provided with a foundation plate through sliding rails and sliding blocks, the inner side of the foundation plate is fixedly provided with a Z-axis servo motor, the Z-axis servo motor is fixedly provided with a Z-axis gear through an output shaft of a speed reducer, one side of the foundation plate, which is far away from the Z-axis servo motor, is fixedly provided with a gear protection cover, one side of the lifting arm, which is close to the gear protection cover, is fixedly provided with a Z-axis rack, the top ends of the left side and the right side of the main frame are fixedly provided with an upper wheel frame, the upper wheel frame is movably installed inside the upper wheel frame, the top end of the main frame is vertically and fixedly provided with an X-axis servo motor, the top end of the walking beam is fixedly provided with an upper guide rail through an output shaft of the speed reducer, the bottom end of the walking beam is fixedly provided with a lower guide rail, the bottom ends of the left side and the bottom ends of the main frame are fixedly provided with a lower roller frame, the bottom roller frame is movably provided with a bottom frame, the bottom frame is internally provided with a movable nut, and a screw nut is movably arranged at one end of the Y-axis servo screw is fixedly arranged.

However, the truss manipulator module has the following disadvantages: the X-axis direction of the equipment moves along the X-axis through the matching of the X-axis gear and the X-axis rack gear of the output shaft of a single X-axis servo motor, if the lifting arm bears an excessive load, the unilateral X-axis servo motor can possibly cause the meshing of the X-axis gear and the X-axis rack gear at the end part of the output shaft to deviate, so that the stress born by the X-axis servo motor is uneven, the X-axis servo motor is easy to damage, and meanwhile, the Y-axis direction adopts the Y-axis servo motor to drive a screw rod to be matched with a nut thread on the underframe of a foundation plate so as to realize the movement of the foundation plate in the Y-axis direction.

Disclosure of Invention

The utility model aims to provide a battery pack conveying device which has the effects of accurate positioning, stable operation and long service life.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a battery package conveyer, includes X axle crossbeam, Y axle crossbeam and hoisting accessory, the Y axle crossbeam is located through first walking frame activity on the X axle crossbeam, hoisting accessory is located through the second walking frame activity on the Y axle crossbeam, first walking frame is fixed to be equipped with biax motor, the both ends output of biax motor is driven respectively through drive assembly first walking frame is followed X axle crossbeam length direction removes, first walking frame with pass through gyro wheel structure movable fit between the X axle crossbeam, the second walking frame with pass through sliding structure sliding fit between the Y axle crossbeam, the second walking frame has driving motor, driving motor drives hoisting accessory is followed Y axle crossbeam length direction removes.

Through adopting above-mentioned technical scheme, when transporting the battery package, snatch the promotion through hoisting accessory to the battery package of car, hoisting accessory is fixed to be set up on the second walking frame, drive the second walking frame through driving motor and remove on the Y axle crossbeam, thereby drive hoisting accessory on the second walking frame and follow Y axle crossbeam length direction motion, because carry out sliding fit through the sliding structure between second walking frame and the Y axle crossbeam, the sliding structure can make hoisting accessory more unanimous through the sliding direction of second walking frame on the Y axle crossbeam, make hoisting accessory along Y axle crossbeam length direction's motion more accurate, thereby improve hoisting accessory to the location accuracy of battery compartment; the Y-axis beam is movably arranged on the X-axis beam through the first walking frame, the first walking frame and the X-axis beam are in sliding fit through the roller structure, the first walking frame needs to bear the whole weight of the first walking frame, the lifting device and the double-shaft motor, the roller structure can reduce the contact area between the first walking frame and the X-axis beam, the motion smoothness of the first walking frame on the X-axis beam is improved, the roller structure has enough supporting force to enable the first walking frame to slide on the X-axis beam, in addition, the first walking frame moves on the X-axis beam through the double-shaft motor, the double-shaft motor is provided with two opposite output shafts, and the transmission assemblies of the output shafts at two ends of the double-shaft motor are in synchronous fit with the X-axis beam, so that the first walking frame can be stably moved on the X-axis beam, and the X-axis beam has the effects of accurate positioning, stable running and long service life.

The utility model is further provided with: the sliding structure comprises a sliding block and a guiding sliding rail, the guiding sliding rail is arranged on the Y-axis beam, a plurality of sliding blocks are arranged on two sides of the second walking frame, the sliding blocks correspond to the guiding sliding rail and are provided with sliding grooves, and the guiding sliding rail is matched with the sliding grooves in a guiding sliding manner.

Through adopting above-mentioned technical scheme, carry out the direction cooperation through the spout of second walking frame both sides slider and the direction slide rail on the Y axle crossbeam, can improve the accuracy of the relative position that hoisting accessory on the second walking frame moved relative to the Y axle crossbeam, prevent that hoisting accessory from taking place the skew relative to the Y axle crossbeam, lead to the inaccurate condition of location to take place between hoisting accessory and the battery compartment of car.

The utility model is further provided with: the roller structure comprises a plurality of rollers arranged on the first walking frame, and the rollers are in rolling fit with the upper end face of the X-axis cross beam.

Through adopting above-mentioned technical scheme, first walking frame lower extreme is equipped with a plurality of gyro wheels, and first walking frame moves on X axle crossbeam through above-mentioned gyro wheel under driving motor's order about, and the gyro wheel can reduce the area of contact between first walking frame and the X axle crossbeam, makes first walking frame remove more smoothly on the X axle crossbeam.

The utility model is further provided with: the transmission assembly comprises a first traveling gear, transmission rods are coaxially and fixedly arranged at two ends of an output shaft of the double-shaft motor, the end parts of the transmission rods are fixedly connected with the first traveling gear, an X-axis rack is fixedly arranged on the X-axis beam corresponding to the first traveling gear, and the X-axis rack is meshed with the first traveling gear.

Through adopting above-mentioned technical scheme, the output shaft at biax motor both ends passes through the transfer line and connects first travelling gear, makes first travelling gear and the X axle rack gear engagement on the X axle crossbeam, realizes that biax motor drives the removal of first walking frame on the X axle crossbeam.

The utility model is further provided with: the X-axis cross beam comprises two parallel beams, and the double-shaft motor is positioned at the center position between the two parallel beams; the transmission rod is installed in the first walking frame through at least two bearing assemblies, one bearing assembly is arranged at one end, close to the double-shaft motor, of the transmission rod, and the other bearing assembly is arranged at one end, close to the first walking gear, of the transmission rod.

Through adopting above-mentioned technical scheme, biax motor sets up the central point put at two parallel beams, guarantees that the output power at biax motor both ends is unanimous, and the effect of firm transfer line can be played in the above-mentioned setting of bearing assembly in addition, prevents that the transfer line from taking place the skew in the rotation in-process and leading to damaging to improve the running stability of first walking frame on X axle crossbeam.

The utility model is further provided with: the bearing assembly comprises a bearing and a bearing seat, a plurality of bearing seats are arranged on the side wall of the first travelling frame, the bearing is arranged in the bearing seat, the transmission rod penetrates through the bearing, the inner ring of the bearing is fixedly connected with the outer wall of the transmission rod, and the outer ring of the bearing is fixedly connected with the bearing seat.

Through adopting above-mentioned technical scheme, the transfer line passes through the bearing and rotates to be connected on the bearing frame, makes the transfer line rotate and connect in first carriage lateral wall, when making first carriage remove on X axle crossbeam, transfer line and biax motor can synchronous motion, even first carriage takes place jolting when removing on X axle crossbeam, transfer line and biax motor also can follow first carriage and remove simultaneously, prevent that the dislocation from taking place with biax motor output shaft to lead to the damage of biax motor.

The utility model is further provided with: the side wall of the roller is provided with a limiting groove, and the upper end of the X-axis beam is embedded in the limiting groove and is in limiting fit with the limiting groove.

Through adopting above-mentioned technical scheme, when first walking frame removes on X axle crossbeam, the spacing groove of gyro wheel lateral wall and X axle crossbeam embedding realize along the spacing of Y axle orientation, can improve the running stability of first walking frame on X axle crossbeam.

The utility model is further provided with: the first walking frame is provided with a plurality of clamping blocks, the clamping blocks are provided with clamping grooves, and clamping hooks are formed by inwards and oppositely extending the two sides of the notch of each clamping groove; the X-axis beam is characterized in that two sides of the X-axis beam are provided with protruding portions in an extending mode corresponding to the clamping grooves, the clamping grooves are in limit fit with the protruding portions, and the clamping hooks are arranged in an anti-falling mode with the protruding portions.

Through adopting above-mentioned technical scheme, through the spacing cooperation of anticreep formula between the clamping hook of grip block and the bellying of X axle crossbeam both sides, can prevent to a certain extent that first walking frame from jumping out from X axle crossbeam and breaking away from and lead to unexpected emergence.

The utility model is further provided with: the end part of the output shaft of the driving motor is provided with a second traveling gear, the Y-axis beam is fixedly provided with a Y-axis rack corresponding to the second traveling gear, and the Y-axis rack is meshed with the second traveling gear.

Through adopting above-mentioned technical scheme, driving motor sets up the lateral wall at the second walking frame, through the gear engagement between the second walking gear of driving motor output shaft tip and the Y axle rack on the Y axle crossbeam, drives the removal of second walking frame on the Y axle crossbeam.

The utility model is further provided with: the X-axis beam end is provided with a first stop piece, the first walking frame side wall is provided with a second stop piece corresponding to the first stop piece, and when the first walking frame moves to the X-axis beam end, the first stop piece is matched with the second stop piece in a stop mode.

By adopting the technical scheme, when the first travelling frame moves to the end part of the X-axis beam, the first travelling frame can be prevented from being continuously translated to be separated from the X-axis beam after moving to the end part of the X-axis beam through the stop fit of the first stop piece and the second stop piece, so that the damage of the utility model is avoided.

In summary, the utility model has the following beneficial effects: adopt and drive the Y axle rack cooperation on both sides first travelling gear and the Y axle crossbeam at first travelling support lateral wall installation biax motor, simultaneously to the gyro wheel structure rolling fit through high bearing capacity between first travelling support and the X axle crossbeam, and hoisting accessory with through the more accurate sliding structure sliding fit of slip direction between the Y axle crossbeam, realize hoisting accessory to accurately lift by crane and transport the battery package, have accurate, the operation is stable, anticreep, long service life's effect.

Drawings

Fig. 1 is a structural view of the present utility model.

Fig. 2 is a structural view of the present utility model, the battery pack having been lifted by the lifting device.

Fig. 3 is an enlarged view of a portion of the area a of fig. 2 in accordance with the present utility model.

Fig. 4 is an enlarged view of a portion of the area B of fig. 2 in accordance with the present utility model.

Fig. 5 is an enlarged partial view of region C of fig. 2 in accordance with the present utility model.

Fig. 6 is a structural view of another view of the present utility model, the battery pack not shown.

Fig. 7 is an enlarged partial view of the area D of fig. 6 in accordance with the present utility model.

Fig. 8 is an enlarged view of a portion of the area E of fig. 6 in accordance with the present utility model.

Fig. 9 is an enlarged view of a portion of the area F of fig. 6 in accordance with the present utility model.

In the figure: 1. an X-axis beam; 11. an X-axis rack; 12. a boss; 13. a first stopper; 2. a Y-axis beam; 21. a guide rail; 22. a Y-axis rack; 3. a lifting device; 4. a first carriage; 41. a roller; 411. a limit groove; 42. a bearing seat; 43. a clamping block; 431. a clamping groove; 432. a clamping hook; 44. a second stopper; 5. a second walking frame; 50. a driving motor; 501. a second traveling gear; 51. a slide block; 511. a chute; 6. a biaxial motor; 61. a transmission rod; 62. a first travel gear; 7. a bearing; 8. and a battery pack.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

The utility model provides a battery package conveyer, including X axle crossbeam 1, Y axle crossbeam 2 and hoisting accessory 3, as shown in figures 1-6 and 8, including X axle crossbeam 1, Y axle crossbeam 2 and hoisting accessory 3, Y axle crossbeam 2 is located X axle crossbeam 1 through first walking frame 4 activity, hoisting accessory 3 is located Y axle crossbeam 2 through second walking frame 5 activity, first walking frame 4 is fixed to be equipped with biax motor 6, the both ends output of biax motor 6 is driven first walking frame 4 along X axle crossbeam 1 length direction through drive assembly respectively, pass through gyro wheel 41 structure movable fit between first walking frame 4 and the X axle crossbeam 1, pass through sliding structure sliding fit between second walking frame 5 and the Y axle crossbeam 2, second walking frame 5 is equipped with driving motor 50, driving motor 50 is driven hoisting accessory 3 along Y axle crossbeam 2 length direction to remove, drive assembly includes first walking gear 62, the equal coaxial fixed transfer line 61 that is equipped with in output shaft both ends of biax motor 6, the tip fixedly connected with first walking gear 62 of transfer line 61, the corresponding first walking gear 62 that is equipped with on X axle crossbeam 1X motor 62, the first walking frame 62 is connected with first walking gear 62X 1 through the first walking frame 11X of the first walking motor 11, the first walking gear 62 is realized on the first walking frame 1 and the first walking frame 1 is engaged with X1X axle 62, the first walking frame is realized through the first walking gear 62 and the first X11X of the axial gear is connected with the first walking motor of X1.

As shown in fig. 2-4, the X-axis beam 1 comprises two parallel beams, and the biaxial motor 6 is located at the center between the two parallel beams; the transmission rod 61 is installed on the first walking frame 4 through at least two bearing assemblies, one bearing assembly is arranged at one end of the transmission rod 61, which is close to the double-shaft motor 6, the other bearing assembly is arranged at one end of the transmission rod 61, which is close to the first walking gear 62, the double-shaft motor 6 is arranged at the center positions of two parallel beams, the consistency of the output power at the two ends of the double-shaft motor 6 is ensured, in addition, the arrangement of the bearing assemblies can play a role in stabilizing the transmission rod 61, and the transmission rod 61 is prevented from being damaged due to the deviation in the rotating process, so that the running stability of the first walking frame 4 on the X-axis beam 1 is improved; each bearing assembly comprises a bearing 7 and a bearing seat 42, the side wall of the first walking frame 4 is provided with a plurality of bearing seats 42, the bearing seats 42 are internally provided with the bearings 7, a transmission rod 61 penetrates through the bearings 7, the inner rings of the bearings 7 are fixedly connected with the outer walls of the transmission rod 61, the outer rings of the bearings 7 are fixedly connected with the bearing seats 42, the transmission rod 61 is rotationally connected to the side wall of the first walking frame 4 through the bearings 7, the transmission rod 61 is rotationally connected to the side wall of the first walking frame 4, when the first walking frame 4 moves on the X-axis beam 1, the transmission rod 61 and the double-axis motor 6 can synchronously move, even if the first walking frame 4 jolts when moving on the X-axis beam 1, the transmission rod 61 and the double-axis motor 6 can also move along with the first walking frame 4, and damage of the double-axis motor 6 caused by dislocation of the output shaft of the transmission rod 61 and the double-axis motor 6 is prevented.

As shown in fig. 2-3, the Y-axis beams 2 are also provided with two beams parallel to each other, the sliding structure includes a sliding block 51 and guiding sliding rails 21, each Y-axis beam 2 is provided with a guiding sliding rail 21, two sides of the second walking frame 5 are respectively provided with two sliding blocks 51, the sliding blocks 51 are provided with sliding grooves 511 corresponding to the guiding sliding rails 21, the sliding grooves 511 of the sliding blocks 51 at two sides of the second walking frame 5 are in guiding sliding fit with the guiding sliding rails 21 on the Y-axis beam 2, the accuracy of the moving relative position of the lifting device 3 on the second walking frame 5 relative to the Y-axis beam 2 can be improved, the lifting device 3 is prevented from deviating relative to the Y-axis beam 2, and the inaccurate positioning between the lifting device 3 and a battery compartment of an automobile is caused.

As shown in fig. 6-8, the roller 41 structure includes four rollers 41 disposed at the lower end of the first walking frame 4, two rollers 41 are disposed on two sides of the first walking frame 4, the rollers 41 are in rolling fit with the upper end surface of the X-axis beam 1, the first walking frame 4 is driven by the driving motor 50 to move on the X-axis beam 1 through the rollers 41, and the rollers 41 can reduce the contact area between the first walking frame 4 and the X-axis beam 1, so that the first walking frame 4 can move on the X-axis beam 1 more smoothly; each roller 41 side wall is provided with an annular limiting slot 411, the upper end of the X-axis beam 1 is embedded in the limiting slots 411 and is in limiting fit with the limiting slots 411, when the first travelling frame 4 moves on the X-axis beam 1, the limiting slots 411 on the roller 41 side wall are embedded with the X-axis beam 1 to realize limiting along the Y-axis direction, and the running stability of the first travelling frame 4 on the X-axis beam 1 can be improved.

As shown in fig. 6-7, a second travelling gear 501 is arranged at the end part of the output shaft of the driving motor 50, a Y-axis rack 22 is fixedly arranged at the end part of the Y-axis beam 2 corresponding to the second travelling gear 501, the Y-axis rack 22 is meshed with the second travelling gear 501, the driving motor 50 is arranged on the side wall of the second travelling frame 5, and the second travelling gear 501 at the end part of the output shaft of the driving motor 50 is meshed with the Y-axis rack 22 on the Y-axis beam 2 to drive the second travelling frame 5 to move on the Y-axis beam 2.

As shown in fig. 6-8, four clamping blocks 43 are arranged at the lower end of the first walking frame 4, two clamping blocks 43 are respectively arranged at two sides of the first walking frame 4 in a group, each clamping block 43 is provided with a clamping groove 431, and two sides of a notch of the clamping groove 431 extend inwards oppositely to form a clamping hook 432; the two sides of the X-axis beam 1 are correspondingly provided with the protruding parts 12 in an extending mode through the clamping grooves 431, the cross section of the X-axis beam 1 is formed into a T shape through the protruding parts 12, the clamping grooves 431 are in limit fit with the protruding parts 12, the clamping blocks 43 are in anti-falling limit fit with the T-shaped X-axis beam 1 through the clamping grooves 431, and unexpected occurrence caused by the fact that the first walking frame 4 is separated from the X-axis beam 1 in a jumping mode can be prevented to a certain extent.

As shown in fig. 6-9, the end part of the X-axis beam 1 is provided with a first stop piece 13, the side wall of the first walking frame 4 is provided with a second stop piece 44 corresponding to the first stop piece 13, and when the first walking frame 4 moves to the end part of the X-axis beam 1, the first stop piece 13 is in stop fit with the second stop piece 44, so that the first walking frame 4 can be prevented from moving to the end part of the X-axis beam 1 and then continuously translating and falling off from the X-axis beam 1, thereby causing damage of the utility model; limit stop structures similar to the first stop member 13 and the second stop member 44 can also be arranged at two ends of the Y-axis beam 2, and the structure is far from similar, so that the description is omitted here.

The basic working principle of the utility model is as follows: when the battery pack 8 is transported, the battery pack 8 of the automobile is grabbed and lifted through the lifting device 3, the lifting device 3 is fixedly arranged on the second walking frame 5, the second walking frame 5 is driven to move on the Y-axis beam 2 through the driving motor 50, so that the lifting device 3 on the second walking frame 5 is driven to move along the length direction of the Y-axis beam 2, and as the second walking frame 5 and the Y-axis beam 2 are in sliding fit through the sliding structure, the sliding direction of the lifting device 3 on the Y-axis beam 2 through the second walking frame 5 is more consistent through the sliding structure, the movement of the lifting device 3 along the length direction of the Y-axis beam 2 is more accurate, and the positioning accuracy of the lifting device 3 on a battery compartment is improved; the Y-axis beam 2 is movably arranged on the X-axis beam 1 through the first walking frame 4, the first walking frame 4 is in sliding fit with the X-axis beam 1 through the roller 41 structure, the first walking frame 4 needs to bear the whole weight of the first walking frame 4, the lifting device 3 and the double-shaft motor 6, the roller 41 structure can reduce the contact area between the first walking frame 4 and the X-axis beam 1, the sliding smoothness of the first walking frame 4 on the X-axis beam 1 is improved, the roller 41 structure has enough supporting force to enable the first walking frame 4 to slide on the X-axis beam 1, in addition, the first walking frame 4 moves on the X-axis beam 1 through the double-shaft motor 6, the double-shaft motor 6 is provided with two opposite output shafts, and the transmission components of the output shafts at two ends of the double-shaft motor 6 are matched with the X-axis beam 1, so that the first walking frame 4 can stably move on the X-axis beam 1, and the X-axis beam 1 has the effects of accurate positioning, stable operation and long service life.

The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.

Claims (10)

1. The utility model provides a battery package conveyer, is including X axle crossbeam (1), Y axle crossbeam (2) and hoisting accessory (3), its characterized in that:

the Y-axis beam (2) is movably arranged on the X-axis beam (1) through a first walking frame (4), the lifting device (3) is movably arranged on the Y-axis beam (2) through a second walking frame (5), the first walking frame (4) is fixedly provided with a double-shaft motor (6), two output ends of the double-shaft motor (6) are respectively driven by a transmission component to move along the length direction of the X-axis beam (1), the first walking frame (4) and the X-axis beam (1) are movably matched through a roller (41) structure, the second walking frame (5) and the Y-axis beam (2) are slidably matched through a sliding structure, the second walking frame (5) is provided with a driving motor (50), and the driving motor (50) is driven by the lifting device (3) to move along the length direction of the Y-axis beam (2).

2. The battery pack transportation device according to claim 1, wherein: the sliding structure comprises sliding blocks (51) and guiding sliding rails (21), the guiding sliding rails (21) are arranged on the Y-axis cross beam (2), a plurality of sliding blocks (51) are arranged on two sides of the second walking frame (5), sliding grooves (511) are formed in the sliding blocks (51) corresponding to the guiding sliding rails (21), and the guiding sliding rails (21) are matched with the sliding grooves (511) in a guiding sliding mode.

3. The battery pack transportation device according to claim 1, wherein: the roller (41) structure comprises a plurality of rollers (41) arranged on the first walking frame (4), and the rollers (41) are in rolling fit with the upper end face of the X-axis cross beam (1).

4. The battery pack transportation device according to claim 1, wherein: the transmission assembly comprises a first traveling gear (62), transmission rods (61) are coaxially and fixedly arranged at two ends of an output shaft of the double-shaft motor (6), the first traveling gear (62) is fixedly connected with the end parts of the transmission rods (61), an X-axis rack (11) is fixedly arranged on the X-axis cross beam (1) corresponding to the first traveling gear (62), and the X-axis rack (11) is meshed with the first traveling gear (62).

5. The battery pack transportation device according to claim 4, wherein: the X-axis cross beam (1) comprises two parallel beams, and the double-shaft motor (6) is positioned at the center position between the two parallel beams; the transmission rod (61) is mounted on the first walking frame (4) through at least two bearing assemblies, one bearing assembly is arranged on the transmission rod (61) and close to one end of the double-shaft motor (6), and the other bearing assembly is arranged on the transmission rod (61) and close to one end of the first walking gear (62).

6. The battery pack transportation device according to claim 5, wherein: the bearing assembly comprises a bearing (7) and a bearing seat (42), wherein a plurality of bearing seats (42) are arranged on the side wall of the first walking frame (4), the bearing (7) is arranged in the bearing seats (42), the transmission rod (61) is arranged on the bearing (7) in a penetrating mode, the inner ring of the bearing (7) is fixedly connected with the outer wall of the transmission rod (61), and the outer ring of the bearing (7) is fixedly connected with the bearing seats (42).

7. The battery pack transportation device according to claim 2, wherein: limiting grooves (411) are formed in the side walls of the rollers (41), and the upper ends of the X-axis cross beams (1) are embedded in the limiting grooves (411) in a limiting fit mode.

8. The battery pack transportation device according to claim 2, wherein: the first walking frame (4) is provided with a plurality of clamping blocks (43), the clamping blocks (43) are provided with clamping grooves (431), and two sides of a notch of each clamping groove (431) extend inwards oppositely to form clamping hooks (432); the X-axis beam (1) is characterized in that protruding portions (12) are arranged on two sides of the X-axis beam (1) in an extending mode and correspond to the clamping grooves (431), the clamping grooves (431) are in limit fit with the protruding portions (12), and the clamping hooks (432) are arranged in an anti-falling mode with the protruding portions (12).

9. The battery pack transportation device according to claim 1, wherein: the end part of the output shaft of the driving motor (50) is provided with a second traveling gear (501), the Y-axis beam (2) is fixedly provided with a Y-axis rack (22) corresponding to the second traveling gear (501), and the Y-axis rack (22) is meshed with the second traveling gear (501).

10. The battery pack transportation device according to claim 1, wherein: the X-axis beam (1) end is provided with a first stop piece (13), the side wall of the first walking frame (4) is provided with a second stop piece (44) corresponding to the first stop piece (13), and when the first walking frame (4) moves to the X-axis beam (1) end, the first stop piece (13) is matched with the second stop piece (44) in a stop mode.