CN216758875U

CN216758875U - Sleeve device, torque gun and battery replacement robot

Info

Publication number: CN216758875U
Application number: CN202123013225.5U
Authority: CN
Inventors: 张建平; 朱明厚; 庄智敏; 凌春雷
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 discloses a sleeve device, a torque gun and a battery replacement robot, wherein the sleeve device is arranged in the torque gun for locking and unlocking a battery replacement box, and comprises: the upper end of the sleeve part is used for driving a battery fastener of the equipment to be charged to rotate; the lower end of the shaft connecting part is used for receiving external torque to rotate so as to drive the sleeve part to rotate, the upper end of the shaft connecting part is connected with the lower end of the sleeve part, and the upper end of the sleeve part can swing from the axis of the shaft connecting part to the outer side direction of the axis of the shaft connecting part. The sleeve portion can swing relative to the axial direction of the shaft connecting portion, so that the moving range of the sleeve portion can be enlarged, even if relative positioning of the sleeve portion and the fastening piece is in error, the fastening piece can still be clamped by the swinging sleeve portion, and then the fastening piece can be twisted. The sleeve device can reduce the requirement of positioning accuracy and improve the efficiency of aligning the fastener.

Description

Sleeve device, torque gun and battery replacement robot

Technical Field

The utility model relates to the field of battery replacement of electric automobiles, in particular to a sleeve device, a torque gun and a battery replacement robot.

Background

The conventional battery box of the electric vehicle is generally arranged in a fixed type or a replaceable type, wherein the fixed type battery is generally fixed on the vehicle, and the vehicle is directly used as a charging object during charging. The replaceable battery box is typically fixed to a bracket of the vehicle by means of a movable mounting. The battery box can be removed to perform replacement or charging operation on the battery box alone. And after the replaced battery box is charged, the battery box is installed on the vehicle again. The battery box can be battery PACK, and a plurality of electric cores are packaged together by same shell frame, when contacting through unified border and outside, this has just constituted a module, and when a plurality of modules are controlled or managed by BMS and thermal management system jointly, this unified whole just is called battery PACK.

The battery box can be mounted to the bracket through fasteners, and the locking device on the bracket can realize the fixation of the battery box. To facilitate installation or removal of the fasteners, the powerstation may utilize a torque gun to perform the associated operations. The sleeve of the torque gun can clamp the end of the fastener, so that torque can be applied to the fastener, and the battery box can be mounted or dismounted.

At present, the sleeve of the torque gun is generally difficult to accurately align with the fastener, so that the battery box is difficult to assemble and disassemble, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defect that a sleeve of a torque gun is usually difficult to accurately align a fastener in the prior art, and provides a sleeve device, the torque gun and a battery replacement robot.

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

a sleeve device is arranged in a torque gun for locking and unlocking a battery replacing box, and comprises: the upper end of the sleeve part is used for driving a battery fastener of equipment to be charged to rotate; the lower end of the shaft connecting part is used for receiving external torque to rotate so as to drive the sleeve part to rotate, the upper end of the shaft connecting part is connected with the lower end of the sleeve part, and the upper end of the sleeve part can swing towards the outer side direction of the axis of the shaft connecting part from the axis of the shaft connecting part.

In this scheme, through adopting above structure, the sleeve part can swing for the axis direction of coupling portion to can increase the home range of sleeve part, even the relative location of sleeve part and fastener appears the error, fastener still can be blocked to the sleeve part that can swing, and then realize the torsion of fastener. The sleeve device can reduce the requirement on positioning accuracy, reduce the accuracy requirement on the mounting position of the torque gun and improve the efficiency of aligning the fastener.

Preferably, the sleeve portion is connected to the shaft connecting portion by a pivot shaft, and an upper end of the sleeve portion is allowed to swing from an axis of the shaft connecting portion to an axis outer side direction of the shaft connecting portion.

In the scheme, the swing is realized by utilizing the pivot shaft, and the structure is simple and reliable.

Preferably, the lower end of the sleeve part is provided with two oppositely arranged connecting walls extending downwards, the two connecting walls are provided with correspondingly arranged first pivot holes, and the pivot shaft is inserted into the first pivot holes.

Preferably, an avoidance gap is provided between the lower end of the sleeve portion and the upper end of the shaft connecting portion, and the avoidance gap is used for avoiding interference with the swing of the sleeve portion.

In this scheme, the interference swing can be avoided.

Preferably, the upper end of the sleeve portion is provided with a battery fastener driving matching portion, and the upper end surface of the battery fastener driving matching portion is provided with a guide surface for guiding the sleeve portion to be matched with a driving member in the battery fastener.

In this scheme, be convenient for guide both cooperations, the driving piece is the nut, through with the nut cooperation, swivel nut demolishs the screw.

Preferably, the outer peripheral surface of the sleeve portion is provided with a limiting table for limiting the depth of the sleeve portion matched with the battery fastener.

In this scheme, spacing platform avoids inserting too deeply.

Preferably, the limiting table is provided with a step surface, and the step surface is used for being matched with an elastic mechanism at the periphery of the battery fastener.

Preferably, the upper end face of the sleeve part is provided with a communication groove or a groove which is matched with and avoids the battery fastener.

Preferably, the lower end of the shaft coupling part has a connection hole, and the external power output part applies torque to the shaft coupling part through the connection hole to apply external force torque to the shaft coupling part.

Preferably, the sleeve device further includes a connecting shaft, the sleeve portion is connected to the shaft connecting portion through the connecting shaft, the sleeve portion is swingable with respect to the connecting shaft, and the connecting shaft is swingable with respect to the shaft connecting portion.

In this aspect, the sleeve portion swings in a plurality of directions.

Preferably, the lower end of the sleeve portion is pivotally connected to the connecting shaft, the upper end of the coupling portion is pivotally connected to the connecting shaft, and the swinging direction of the connecting shaft with respect to the coupling portion and the swinging direction of the sleeve portion with respect to the connecting shaft are not coplanar.

In this aspect, the sleeve portion can swing in any direction in the axial direction of the connecting shaft portion by the bidirectional pivot.

Preferably, the connecting shaft includes a ball head portion and a ball groove portion which are in rolling fit, the upper end of the sleeve portion is fixedly connected with one end of the connecting shaft, and the lower end of the shaft connecting portion is fixedly connected with the other end of the connecting shaft.

In this scheme, the rolling cooperation of bulb portion and ball groove portion can reduce the friction, improves the wobbling flexibility of sleeve portion and coupling portion.

Preferably, the sleeve portion includes:

the upper end of the sleeve head is used for driving a battery fastener of the equipment to be charged to rotate;

the sleeve head is detachably connected with the connecting sleeve, and the lower end of the connecting sleeve is used for being in transmission connection with the shaft connecting part;

the limiting cushion is sleeved on the outer side of the sleeve head, and the sleeve head is detachably connected with the connecting sleeve.

In this scheme, through set up sleeve portion as sleeve head, adapter sleeve and the spacing pad of dismantling the connection, because the sleeve head is easily worn and torn, only need to change the sleeve head can restore the sleeve portion, avoided whole change sleeve portion, spacing pad can avoid the sleeve portion to insert the battery fastener too deeply.

Preferably, the lower end of the sleeve head is provided with a transmission block, the upper end of the connecting sleeve is provided with a transmission groove, and the transmission block is clamped in the transmission groove.

In the scheme, the transmission connection between the sleeve head and the connecting sleeve is realized by utilizing the transmission block and the transmission groove, and the structure is simple and reliable.

A torque gun comprising a sleeve arrangement as described above.

In this scheme, through adopting above structure, the sleeve device of moment of torsion rifle can swing to even appear the error between moment of torsion rifle and the battery fastener location, the sleeve device also can realize the cooperation smoothly with the battery fastener, and then realizes the installation or the dismantlement of battery fastener. The torque gun can reduce the requirement of positioning accuracy and improve the efficiency of installing or disassembling the battery fastener.

Preferably, the torque gun further comprises a power assembly, a base assembly and an elastic member, the power assembly is mounted on the base assembly, an output shaft of the power assembly is in transmission connection with the shaft connecting portion, the shaft connecting portion can move along the axis direction of the output shaft, the elastic member acts on the sleeve device, and the elastic member is used for driving the sleeve device to be away from the power assembly.

In this scheme, the elastic component keeps away from for the sleeve device in the moment of torsion rifle the power component provides the holding power, and all installs in the base subassembly, makes the compact structure of moment of torsion rifle, firm, can bear certain external pressure such as battery box locking mechanism.

Preferably, the outer peripheral surface of the shaft connecting portion is provided with a blocking table, the elastic member is a second spring, the second spring is sleeved on the outer periphery of the shaft connecting portion, and two ends of the second spring respectively abut against the shaft connecting portion and the power assembly.

In this scheme, the elastic component adopts the second spring, and its position sets up, simple structure, firm.

The utility model provides a trade electric robot, trade electric robot includes the lift platform with set up in the last moment of torsion rifle mounting panel of lift platform, be provided with at least one as above moment of torsion rifle on the moment of torsion rifle mounting panel.

In this scheme, through adopting above structure, trade electric robot uses above-mentioned moment of torsion rifle, can reduce trade electric robot and treat the required precision of relative position between the equipment of trading, can improve the efficiency of trading the battery box of the equipment of trading.

On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the utility model.

The positive progress effects of the utility model are as follows:

the sleeve part of the sleeve device can swing relative to the axial direction of the shaft connecting part, so that the moving range of the sleeve part can be enlarged, and even if errors occur in the relative positioning of the sleeve part and a fastening piece, the swinging sleeve part can still clamp the fastening piece, and further the fastening piece can be twisted. The sleeve device can reduce the requirement of positioning accuracy and improve the efficiency of aligning the fastener.

Drawings

Fig. 1 is a schematic structural diagram of a swapping robot according to a preferred embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a torque gun of the swapping robot in fig. 1.

Fig. 3 is a schematic structural diagram of a torque gun in a use state of the swapping robot in fig. 1, which includes the torque gun and a battery fastener.

Fig. 4 is a schematic structural diagram of a cross section of a torque gun of the swapping robot in fig. 3.

FIG. 5 is a schematic view of the torque gun of FIG. 2 without the base assembly and the resilient return assembly.

Fig. 6 is a schematic view of the structure of the sleeve portion of the sleeve device of fig. 5.

Fig. 7 is a schematic view of the shaft coupling portion of the sleeve device of fig. 5.

Fig. 8 is a structural view illustrating a connection shaft of the sleeve device of fig. 5.

Fig. 9 is a schematic view of the output shaft of the sleeve device of fig. 5.

Fig. 10 is a schematic structural view of a reducer assembly of the sleeve device in fig. 5.

Fig. 11 is a schematic view of a motor assembly of the sleeve device of fig. 5.

Fig. 12 is a schematic structural diagram of a base assembly of the swapping robot in fig. 3.

FIG. 13 is a schematic illustration of the torque gun of FIG. 2 without the base assembly, wherein the resilient return assembly is a rubber boot.

Fig. 14 is a schematic structural diagram of a torque gun in the electric swapping robot in embodiment 2 of the present invention.

FIG. 15 is a cross-sectional structural schematic view of the torque gun of FIG. 14.

FIG. 16 is a schematic view of the steel sleeve of the torque gun of FIG. 14.

Fig. 17 is a schematic structural view of the sleeve portion of fig. 14 showing the fitting and the position-limiting pad.

Fig. 18 is a structural diagram of the cuff and the spacing pad of fig. 17 from another perspective.

Fig. 19 is a sectional structural view of the spacing pad in fig. 14.

Fig. 20 is a schematic view of a coupling sleeve of the sleeve portion of fig. 14.

Description of reference numerals:

battery replacement robot 100

Lifting platform 11

Torque gun mounting plate 12

Torque gun 200

Power assembly 21

Base assembly 22

Elastic member 23

Blocking table 24

Speed reducer assembly 25

Motor assembly 26

Output shaft 27

Sleeve device 300

Escape gap 31

Sleeve portion 40

Connecting wall 41

Drive matching section 42

Guide surface 43

Limiting table 44

Step surface 45

Communication groove 46

Sleeve head 47

Driving block 471

Spacing pad 48

Connecting sleeve 49

Driving groove 491

Shaft coupling 50

Connection hole 51

Connecting shaft 60

Elastic reset assembly 70

Steel jacket 71

Accommodating groove 72

Wave spring 73

Rubber sleeve 74

Battery fastener 90

Detailed Description

The present invention will be more clearly and completely described below by way of examples in conjunction with the accompanying drawings, but the present invention is not limited thereto.

Example 1

As shown in fig. 1 to 13, the present embodiment is a swapping robot 100, the swapping robot 100 includes a lifting platform 11 and a torque gun mounting plate 12 disposed on the lifting platform 11, and at least one torque gun 200 is disposed on the torque gun mounting plate 12. The power exchanging robot 100 uses the torque gun 200, so that the accuracy requirement of the relative position between the power exchanging robot 100 and the equipment to be powered can be reduced, and the efficiency of replacing a battery box of the power exchanging equipment can be improved.

The battery replacement robot 100 moves to a designated position below the electric automobile; the lifting platform 11 will move along the direction close to the electric vehicle, so as to drive the torque gun mounting plate 12 and the torque gun 200 to move along the direction close to the electric vehicle, and the torque gun 200 drives the rotation of the rotation locking piece on the battery pack to unlock or lock the battery pack.

In the figures, the torque gun 200 includes a sleeve arrangement 300 as follows. The sleeve device 300 of the torque gun 200 can swing so that even if an error occurs between the positioning of the torque gun 200 and the battery fastener 90, the sleeve device 300 can be smoothly fitted with the battery fastener 90, thereby realizing the mounting or dismounting of the battery fastener 90. The torque gun 200 can reduce the positioning accuracy requirements and improve the efficiency of the installation or removal of the battery fasteners 90.

The torque gun 200 further comprises a power assembly 21, a base assembly 22 and an elastic member 23, wherein the power assembly 21 is mounted on the base assembly 22, an output shaft 27 of the power assembly 21 is in transmission connection with a shaft connecting portion 50, the shaft connecting portion 50 can move along the axial direction of the output shaft 27, the elastic member 23 acts on the sleeve device 300, and the elastic member 23 is used for driving the sleeve device 300 to be away from the power assembly 21. The elastic member provides a supporting force for the sleeve device 300 in the torque gun 200 away from the power assembly 21, and is mounted on the base assembly 22, so that the torque gun 200 has a compact and stable structure and can bear a certain external pressure of a battery box over-locking mechanism and the like.

The blocking table 24 is arranged on the outer peripheral surface of the shaft connecting part 50, the elastic part 23 is a second spring, the second spring is sleeved on the outer periphery of the shaft connecting part 50, and two ends of the second spring respectively abut against the shaft connecting part 50 and the power assembly 21. The elastic part adopts the second spring, and its position sets up, simple structure, firm.

As an embodiment, the power assembly 21 may specifically include a servo motor 26 and a harmonic reducer assembly 25, which are in transmission connection, wherein the harmonic reducer assembly 25 drives the output shaft 27 to rotate, and the output shaft 27 drives the sleeve device 300 to rotate.

As shown in fig. 4-8, there is shown the above mentioned sleeve device 300, the sleeve device 300 is disposed in the battery replacing box locking and unlocking torque gun 200, the sleeve device 300 includes: the upper end of the sleeve part 40 is used for driving a battery fastener 90 of the equipment to be charged to rotate; the lower end of the coupling portion 50 is adapted to receive external torque to rotate the sleeve portion 40, the upper end of the coupling portion 50 is connected to the lower end of the sleeve portion 40, and the upper end of the sleeve portion 40 is capable of swinging from the axis of the coupling portion 50 to the outside of the axis of the coupling portion 50. The sleeve portion 40 is swingable in the axial direction relative to the coupling portion 50, so that the movable range of the sleeve portion 40 can be increased, and even if an error occurs in the relative positioning between the sleeve portion 40 and the fastener, the swingable sleeve portion 40 can still catch the fastener, thereby realizing the twisting of the fastener. The sleeve device 300 can reduce the requirement for positioning accuracy, can reduce the accuracy requirement for the mounting position of the torque gun 200, and can improve the efficiency of aligning fasteners.

In the present embodiment, as shown in fig. 5, as a specific embodiment, the sleeve portion 40 is connected to the shaft connecting portion 50 by a pivot shaft, so that the upper end of the sleeve portion 40 can swing from the axis of the shaft connecting portion 50 to the outside of the axis of the shaft connecting portion 50. The swing is realized by the pivot shaft, the structure is simple and reliable, the sleeve portion 40 can pivot along the pivot shaft and the shaft connecting portion 50, and other pivoting methods can be adopted, which is not limited herein.

As shown in fig. 6, the lower end of the sleeve portion 40 has two downwardly extending connecting walls 41 disposed opposite to each other, and the two connecting walls 41 have correspondingly disposed first pivot holes into which the pivot shafts are inserted. An avoidance gap 31 is provided between the lower end of the sleeve portion 40 and the upper end of the coupling portion 50, and the avoidance gap 31 is provided to avoid interference with the swing of the sleeve portion 40, and can avoid interference with the swing.

As another specific embodiment, as shown in fig. 5, the sleeve device 300 further includes a connecting shaft 60, the sleeve portion 40 is connected to the shaft connecting portion 50 through the connecting shaft 60, the sleeve portion 40 is swingable with respect to the connecting shaft 60, the connecting shaft 60 is swingable with respect to the shaft connecting portion 50, and the connecting shaft 60 is capable of swinging the sleeve portion 40 in multiple directions.

In other embodiments, the sleeve portion 40 and the coupling portion 50 may be directly connected, and the sleeve portion 40 may swing in different directions with respect to the coupling portion 50. The sleeve portion 40 and the shaft coupling portion 50 may be connected to each other by a pivot shaft.

In the present embodiment, as shown in fig. 8, the entire connecting shaft 60 may be rectangular, the connecting shaft 60 may have two holes with different orientations, and the sleeve portion 40 and the coupling portion 50 may be pivotally provided on the connecting shaft 60. The connecting shaft 60 may further include a ball head portion and a ball groove portion which are in rolling engagement, an upper end of the sleeve portion 40 is fixedly connected to one end of the connecting shaft 60, and a lower end of the shaft connecting portion 50 is fixedly connected to the other end of the connecting shaft 60. The rolling engagement of the ball head portion and the ball groove portion reduces friction, and improves the flexibility of the swing of the sleeve portion 40 and the shaft connecting portion 50. When the connecting shaft 60 is a rectangular parallelepiped, the lower end of the sleeve portion 40 is pivotally connected to the connecting shaft 60, the upper end of the coupling portion 50 is pivotally connected to the connecting shaft 60, and the swinging direction of the connecting shaft 60 with respect to the coupling portion 50 and the swinging direction of the sleeve portion 40 with respect to the connecting shaft 60 are not coplanar. The sleeve portion 40 can swing in any direction in the axial direction with respect to the shaft connecting portion 60 by the bidirectional pivot.

In the present embodiment, the downwardly extending connecting walls 41 of the sleeve portion 40 are disposed opposite to each other, and the connecting shaft 60 can be inserted between the two connecting walls 41. The upper end of the coupling portion 50 also has a structure similar or identical to that of the connecting wall 41, and the connecting shaft 60 may be inserted into the coupling portion 50. The sleeve portion 40, the connecting shaft 60, and the coupling portion 50 are sequentially connected by a pivot shaft, and the sleeve portion 40 and the coupling portion 50 can swing in different directions with respect to the connecting shaft 60.

In both embodiments, the upper end of the sleeve portion 40 is provided with a battery fastener 90 driving matching portion 42, and the upper end surface of the battery fastener 90 driving matching portion 42 is provided with a guiding surface 43, and the guiding surface 43 is used for guiding the sleeve portion 40 to match with a driving member in the battery fastener 90. The guide both of being convenient for cooperate, the driving piece is the nut, through cooperating with the nut, and swivel nut is rotatory with the screw, drives battery fastener 90 and adds, unblock. The outer peripheral surface of the sleeve portion 40 is provided with a limit stop 44, and the limit stop 44 serves to limit the depth to which the sleeve portion 40 is fitted with the battery fastener 90. The stop 44 prevents the sleeve assembly 300 from being inserted too far into the battery fastener 90. The limiting table 44 is provided with a step surface 45, and the step surface 45 is used for being matched with an elastic mechanism on the periphery of the battery fastener 90. The upper end face of the sleeve portion 40 has a communication groove 46 that cooperates to avoid the battery fastener 90. In other embodiments, the communication groove 46 may be provided as a groove.

As a specific embodiment, the driving matching part 42 of the battery fastener 90 may be in an external hexagonal shape as a whole, and the upper end surface of the driving matching part 42 of the battery fastener 90 has an arc-shaped guide surface 43. The lower end of the battery fastener 90 driving matching part 42 is provided with a step surface 45, and a limit table 44 is arranged below the step surface 45. The diameter of the stopper table 44 is larger than the diameter of the step surface 45. Two downwardly extending connecting walls 41 are provided below the step surface 45. The sleeve portion 40 may also be hollow as a whole, the communication groove 46 extends downward from the upper end of the sleeve portion 40, the communication groove 46 is composed of an upper groove for avoiding a fastener and a lower through groove for installing a pivot shaft, or the connecting shaft 60 is pivotally connected to the sleeve portion 40.

The shaft coupling portion 50 has a coupling hole 51 at a lower end thereof, and the external power output portion applies a torque to the shaft coupling portion 50 through the coupling hole 51 to apply an external force torque to the shaft coupling portion 50.

As an embodiment, the torque gun 200 may further include an elastic restoring member 70, wherein the elastic restoring member 70 is sleeved on the outer circumferential surface of the sleeve device 300 and is used for restoring the sleeve portion 40 to a position where the axis of the sleeve portion 40 coincides with the axis of the shaft connecting portion 50. The sleeve portion 40 can swing relative to the axial direction of the shaft connecting portion 50, so that the moving range of the sleeve portion 40 can be enlarged, even if relative positioning of the sleeve portion 40 and a fastening piece is wrong, the swinging sleeve portion 40 can still clamp the fastening piece, the elastic resetting component 70 drives the axial line of the sleeve portion 40 to be overlapped with the axial line of the shaft connecting portion 50, the axial line of the sleeve device 300 can be overlapped with the axial line of the fastening piece, and then the fastening piece is twisted. The sleeve device 300 can reduce the requirement of positioning accuracy and improve the efficiency of aligning fasteners.

In one embodiment, when the torque gun 200 is docked with the battery pack fastener, the sleeve device 300 needs to be swung if there is a positional deviation. After swinging, the elastic resetting component 70 drives the axis of the sleeve part 40 to have a tendency of resetting towards the position overlapped with the axis of the shaft connecting part 50, so that excessive angle swinging for matching the fastener is avoided, and the torque gun head 200 can be assisted to be swung after being matched in the battery fastener, and then the locking and unlocking operation of the battery pack fastener is carried out.

The elastic restoring component 70 is sleeved on the outer peripheral surfaces of the sleeve portion 40 and the shaft connecting portion 50, so that the elastic restoring component applies an inward acting force from the periphery, and the sleeve device 300 is restored conveniently.

An accommodating gap is formed between the inner side surface of the elastic reset component 70 and the outer peripheral surface of the sleeve portion 40, and the accommodating gap ranges from 1 mm to 2 mm.

In the present embodiment, the elastic restoring member 70 is a spring, and may be a rectangular spring. In other embodiments, as shown in fig. 13, the elastic restoring member 70 may also be a rubber sleeve 74, which is simple in structure and reliable in use.

The power assembly 21 of the torque gun 200 may specifically include a motor assembly 26, a power output end of the motor assembly 26 is in transmission connection with a power input end of the speed reducer assembly 25, and a power output end of the speed reducer assembly 25 is used for outputting power to drive the sleeve device 300 to rotate. Specifically, the motor assembly 26 may be a servo motor assembly and the reducer assembly 25 may be a harmonic reducer assembly.

The torque gun 200 may further include a linkage assembly, the power output of the motor assembly 25 being drivingly connected to the power input of the linkage assembly, the power output of the linkage assembly being drivingly connected to the plurality of speed reducer assemblies. The motor assembly 25 may be embodied as a servo motor, facilitating flexible configuration.

The elastic member 23 is a second spring, the second spring is sleeved on the periphery of the coupling portion 50, and two ends of the second spring respectively abut against the coupling portion 50 and the lower side surface of the blocking table 24 of the sleeve device 300. In the battery replacement process, the second spring can drive the support sleeve device 300 to keep a vertical floating distance interval with the power device, pre-pressure is applied, the structural stability is improved, and the whole structure is simple and compact.

The inner side wall of the base component 22 is attached to at least one part of the outer side wall of the power device, and the lower end face of the base component 22 is fixed to the power device through a fixing piece, so that the structure is compact.

The lower end faces of the motor assembly 25, the speed reducer assembly 26 and the base assembly 22 are sequentially fixed through the fixing piece in a penetrating mode.

Example 2

As shown in fig. 14 to 20, the present embodiment is an electrical robot 100, and is substantially the same as embodiment 1 except that the elastic return component 70 and the sleeve portion 40 of the present embodiment are as follows.

The sleeve part 40 comprises a sleeve head 47, a connecting sleeve 48 and a limiting pad 49, wherein the upper end of the sleeve head 47 is used for driving a battery fastener of the equipment to be charged to rotate; the sleeve head 47 is detachably connected with a connecting sleeve 48, and the lower end of the connecting sleeve 48 is used for driving a connecting part 50; the limiting pad 49 is sleeved outside the sleeve head 47, and the sleeve head 47 is detachably connected with the connecting sleeve 48. By arranging the sleeve part 40 as the sleeve head 47, the connecting sleeve 48 and the limiting pad 49 which are detachably connected, the sleeve part 40 can be repaired only by replacing the sleeve head 47 due to the fact that the sleeve head 47 is easy to wear, and the sleeve part 40 is prevented from being integrally replaced.

The limiting pad 49 can be made of polytetrafluoroethylene, the steel sleeve 71 can be sleeved from top to bottom, installation is convenient, the steel sleeve 71 can keep the torque output by the power device to the sleeve device 300, the stability of the sleeve part 40 of the torque gun is guaranteed, and the limiting pad 49 can prevent the sleeve part from being inserted too deeply into the battery fastener 90. The lower extreme of pullover 47 is equipped with transmission piece 471, and the upper end of adapter sleeve 48 has transmission groove 481, and transmission piece 471 card is located transmission groove 481. The transmission block 471 and the transmission groove 481 are used for realizing the transmission connection between the sleeve head 47 and the connecting sleeve 48, and the structure is simple and reliable.

The elastic return assembly 70 of the present embodiment includes a wave spring 73 and a steel sleeve 71, the steel sleeve 71 is sleeved outside the sleeve device 300, and the wave spring 73 is disposed between the steel sleeve 71 and the sleeve device 300. Simple structure guarantees to exert effectual dynamics of resetting to sleeve device 300, the installation of being convenient for, and is practical reliable.

In one embodiment, the inner side surface of the upper end of the steel sleeve 71 is provided with a containing groove 72, and the wave spring 73 is arranged in the containing groove 72, so that the structure is compact and the use is reliable.

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 sleeve device, sets up in trading the torque gun that battery box adds the unblock, its characterized in that, sleeve device includes:

the upper end of the sleeve part is used for driving a battery fastener of the equipment to be charged to rotate;

the lower end of the shaft connecting part is used for receiving external torque to rotate so as to drive the sleeve part to rotate, the upper end of the shaft connecting part is connected with the lower end of the sleeve part, and the upper end of the sleeve part can swing from the axis of the shaft connecting part to the outer side direction of the axis of the shaft connecting part.

2. The sleeve device according to claim 1, wherein the sleeve portion is connected to the shaft connecting portion by a pivot shaft so that an upper end of the sleeve portion can swing from an axis of the shaft connecting portion to an outside direction of the axis of the shaft connecting portion.

3. The sleeve device according to claim 2, wherein said sleeve portion has at a lower end thereof two oppositely disposed downwardly extending connecting walls, both of said connecting walls having correspondingly disposed first pivot holes, said pivot shafts being inserted through said first pivot holes.

4. The sleeve device according to claim 1, wherein an avoidance gap is provided between a lower end of the sleeve portion and an upper end of the coupling portion, the avoidance gap being for avoiding interference with the swing of the sleeve portion.

5. The sleeve device of claim 1 wherein the upper end of said sleeve portion is provided with a battery fastener drive mating portion, the upper end face of said battery fastener drive mating portion being provided with a guide surface for guiding said sleeve portion into engagement with a drive member in said battery fastener.

6. The sleeve device of claim 1 wherein said sleeve portion has a stop on an outer peripheral surface thereof for limiting the depth to which said sleeve portion is engaged by said battery fastener.

7. The sleeve device of claim 6 wherein said stop is provided with a step surface for mating with resilient means on the periphery of said battery fastener.

8. A sleeve device according to claim 1, wherein the upper end face of the sleeve portion has a communication groove or recess for co-operating with a battery fastener.

9. The sleeve device according to claim 1, wherein a lower end of said coupling portion has a coupling hole through which an external power output portion applies a moment to said coupling portion to apply an external force moment to said coupling portion.

10. The sleeve device according to claim 1, further comprising a connecting shaft, wherein the sleeve portion is connected to the shaft connecting portion through the connecting shaft, the sleeve portion is swingable with respect to the connecting shaft, and the connecting shaft is swingable with respect to the shaft connecting portion.

11. The sleeve device according to claim 10, wherein a lower end of the sleeve portion is pivotally connected to the connecting shaft, an upper end of the coupling portion is pivotally connected to the connecting shaft, and a swinging direction of the connecting shaft with respect to the coupling portion and a swinging direction of the sleeve portion with respect to the connecting shaft are not coplanar.

12. The sleeve device according to claim 10, wherein the connecting shaft includes a ball head portion and a ball groove portion which are roll-fitted, an upper end of the sleeve portion is fixedly connected to one end of the connecting shaft, and a lower end of the coupling portion is fixedly connected to the other end of the connecting shaft.

13. The sleeve device of any one of claims 1-12, wherein the sleeve portion comprises:

the limiting cushion is sleeved on the outer side of the sleeve head and detachably connected with the connecting sleeve.

14. A sleeve device as claimed in claim 13, wherein the lower end of the sleeve head is provided with a driving block, the upper end of the connecting sleeve is provided with a driving groove, and the driving block is clamped in the driving groove.

15. A torque gun, characterized in that it comprises a sleeve arrangement according to any one of claims 1-14.

16. The torque gun of claim 15, further comprising a power assembly mounted to the base assembly, an output shaft of the power assembly drivingly connected to the coupling portion, the coupling portion being movable along an axis of the output shaft, and a resilient member acting on the sleeve means for urging the sleeve means away from the power assembly.

17. The torque gun according to claim 16, wherein the coupling portion has a stop portion on an outer circumferential surface thereof, the elastic member is a second spring, the second spring is sleeved on the outer circumferential surface of the coupling portion, and two ends of the second spring respectively abut against the coupling portion and the power assembly.

18. A robot for replacing electric power, comprising a lifting platform and a torque gun mounting plate arranged on the lifting platform, wherein at least one torque gun as claimed in any one of claims 15 to 17 is arranged on the torque gun mounting plate.