CN115431820A

CN115431820A - Flexible transmission mechanism, driving device comprising flexible transmission mechanism, battery replacing equipment and battery replacing station

Info

Publication number: CN115431820A
Application number: CN202210351363.4A
Authority: CN
Inventors: 张建平; 王莉; 仇丹梁
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-12-06

Abstract

The invention provides a flexible transmission mechanism, a driving device comprising the flexible transmission mechanism, a battery replacement device and a battery replacement station, wherein the flexible transmission mechanism comprises a flexible part and a driving wheel which are connected in a matching manner. Through setting up the opening on the flexure piece to the opening setting that corresponds the flexure piece with the adjusting part, the tensioning degree of adjusting the flexure piece through the flexible of adjusting part self is flexible, makes the compact structure of adjusting the subassembly, does not additionally occupy the space beyond the flexure piece, and the flexure piece can not contact with other structures of trading electrical equipment, avoids causing the interference to the motion of flexure piece.

Description

Flexible transmission mechanism, driving device comprising flexible transmission mechanism, battery replacing equipment and battery replacing station

Technical Field

The invention relates to the field of vehicle battery replacement, in particular to a flexible transmission mechanism, a driving device comprising the flexible transmission mechanism, battery replacement equipment and a battery replacement station.

Background

The battery of the existing electric automobile is generally installed in a fixed mode and a replaceable mode, the replaceable battery is generally movably installed, the battery can be taken down at any time to be replaced or charged, and the battery is installed on an automobile body after replacement or charging is finished.

The existing automatic battery replacement equipment is high in self height and not compact in structure, a sunk space or a pit needs to be arranged for the battery replacement equipment to enter and exit, and the construction cost of a battery replacement station is greatly increased.

At present, the structures of various transmission structures adopted in the battery replacing equipment and the corresponding tightness adjusting mechanisms are complex, so that the battery replacing equipment adopting the transmission structures occupies large space, and the problem of easy interference is more prominent. Therefore, in order to reduce the height of the battery replacement device, reducing the occupied space becomes the key point for the research and development of designers.

Disclosure of Invention

The invention aims to overcome at least one of the defects that the power replacing equipment occupies large space and is easy to interfere due to the complex structure of a transmission structure and a corresponding tightness adjusting mechanism of the power replacing equipment in the prior art, and provides a flexible transmission mechanism, a driving device comprising the flexible transmission mechanism, the power replacing equipment and a power replacing station.

The invention solves the technical problems through the following technical scheme:

the flexible transmission mechanism comprises a flexible part and transmission wheels which are connected in a matched mode, and is characterized by further comprising an adjusting component, wherein the adjusting component is telescopic, an opening is formed in the flexible part between the transmission wheels, two ends of the adjusting component in the telescopic direction of the adjusting component are connected with two ends of the opening in the flexible part respectively, and the adjusting component is telescopic by the adjusting component to adjust the tensioning degree of the flexible part.

In this technical scheme, through set up the opening on the flexure piece to with the opening setting of adjusting part correspondence flexure piece, adjust the tensioning degree of flexure piece through the flexible extension of adjusting part self, make adjusting part's compact structure, do not additionally occupy the space beyond the flexure piece, and the flexure piece can not contact with other structures of trading electrical equipment, avoid causing the interference to the motion of flexure piece.

Preferably, the adjusting assembly comprises a rod piece and two adjusting pieces, the two adjusting pieces are respectively connected to the rod piece through reverse threads and are arranged at intervals, the two adjusting pieces form two ends of the adjusting assembly in the self-telescopic direction, and the adjusting assembly is telescopic by driving the rotation of the rod piece to adjust the distance between the two adjusting pieces.

In this technical scheme, a comparatively direct flexible regulation scheme is provided, the simple structure of this scheme, it is efficient to adjust.

Preferably, the surface of the rod exposed out of the two adjusting pieces has a telescopic adjusting structure extending along a telescopic direction different from the telescopic direction of the adjusting assembly.

In the technical scheme, the telescopic adjusting structure is arranged on the rod piece, so that a user can drive the rod piece to rotate conveniently, and the telescopic adjusting purpose is realized.

Preferably, the telescopic adjusting structure is arranged to be a concave structure or a convex structure relative to the surface where the telescopic adjusting structure is arranged, and can be used for butting against a tool for rotation.

In this technical scheme, adjust the structure with flexible and set up to the structure of indent or evagination, convenient to use person passes through the instrument and the butt joint of member, realizes the rotatory purpose of drive member, can improve regulation efficiency and reduce the regulation degree of difficulty.

Preferably, the adjusting assembly further comprises a locking member arranged corresponding to the adjusting member, and the locking member is connected to the rod member through threads and abuts against the corresponding adjusting member;

and/or the two adjusting pieces are respectively arranged at two ends of the rod piece;

and/or a connecting hole used for being connected with the end part of the opening is formed in the adjusting piece.

In this technical scheme, through setting up the retaining member, adjust flexible back that finishes and support on the regulating part at the regulating part, avoid the position of the relative regulating part of member to change because of the exogenic action after the adjustment is accomplished, and then improve this flexible drive mechanism's the accurate degree of adjustment.

Meanwhile, the adjusting pieces are arranged at the two ends of the rod piece, so that the layout of the adjusting assembly is simple and compact, and the adjusting assembly is more convenient to connect with the flexible piece.

Meanwhile, the connecting hole is formed in the adjusting piece to achieve connection with the end portion of the opening of the flexible piece, connection reliability is high, and adjustment and maintenance are facilitated.

Preferably, the transmission wheel is a chain wheel, and the flexible part is a transmission chain; or the transmission wheel is a belt wheel, and the flexible part is a transmission belt; or the driving wheel is a rope wheel, and the flexible part is a driving rope.

In the technical scheme, chain transmission is adopted, so that slipping is avoided, the average transmission ratio is accurate, and the transmission efficiency is high; the abrasion of the chain wheel and the chain is small in the transmission process, and the durability is good; the chain transmission also has the advantage of compact structure.

The belt transmission has the functions of shock absorption and buffering, the transmission is stable, and the noise is low; the belt drive has overload protection, can prevent the damage of parts, and can also adopt an engagement type transmission mode.

The rope transmission structure is simple, the processing is convenient, the transmission is stable, and no noise, no vibration and no impact are generated.

A driving device comprises a driving part and the flexible transmission mechanism, wherein the driving part is connected with the flexible part through the adjusting component so as to drive the flexible transmission mechanism to act.

In the technical scheme, the driving device is connected with the flexible part through the driving part, and power transmission is realized through a mode of directly driving the flexible part to move, so that the driving device is compact in structure and meets the requirement of compact design.

Preferably, the driving device further comprises a connecting part for connecting the driving part and the adjusting assembly.

In this technical scheme, set up connecting portion in order to connect drive division and adjusting part, rather than adjusting part direct and drive division connection, can simplify adjusting part's structure, avoid connection between the two to influence adjusting part and adjust the function of the tensioning degree of flexure.

Preferably, the connecting portion is used for driving the adjusting component to move along the self-extension direction.

In this technical scheme, connecting portion only retrain the degree of freedom that the regulating assembly moved along self flexible direction, only are used for driving the regulating assembly along the extending direction of flexure (adjusting assembly self flexible direction promptly) motion, and it is in the ascending degree of freedom of other directions to let out the restraint subassembly for the drive division drives the flexure and moves more smoothly around the drive wheel, eliminates the dead possibility of structure card.

Preferably, the surface of the adjusting component is provided with a positioning structure protruding or recessed along a telescopic direction different from that of the adjusting component, and the connecting part can be contacted with the positioning structure along the telescopic direction.

In this technical scheme, through the setting of above-mentioned structure, both realized the location of connecting portion relative adjustment subassembly along the direction that stretches out and draws back, released the degree of freedom of other directions simultaneously, when needs are dismantled and are maintained, also made things convenient for to separate between the connecting portion relative adjustment subassembly moreover.

Preferably, the connecting portion is in clearance fit with the positioning structure along a direction perpendicular to the telescopic direction.

In this technical scheme, through above-mentioned structural setting for connecting portion only retrain the degree of freedom that adjusting part moved along self flexible direction for adjusting part's relation of connection, and release the ascending degree of freedom in other directions, influence connecting portion relatively adjusting part's traction with size factors such as avoiding position deviation, make connecting portion to adjusting part's traction steady, reliable.

Preferably, the adjusting assembly comprises a rod and two adjusting pieces, the two adjusting pieces are reversely screwed on the rod and are arranged at intervals to form two ends of the adjusting assembly along the self-telescopic direction, and the surface of the part of the rod, which is exposed out of the two adjusting pieces, is provided with the positioning structure; the positioning structure is arranged as a concave structure or a convex structure relative to the surface of the rod piece and can be used for butting a tool for rotation.

In this technical scheme, through making connecting portion and adjusting part catch up and carry out the contact to drive the member and realize along the removal of telescopic direction, make the transmission of force stable, even.

Preferably, the positioning structure is the telescopic adjusting structure.

In this technical scheme, through above-mentioned structure setting, same part on the member can play simultaneously and is driven and carry out two kinds of effects of flexible regulation by the drive division, simple structure, think about ingeniously.

Preferably, the positioning structure is a protruding structure formed on the rod piece and exposed out of the surface of the parts of the two adjusting pieces and extending outwards;

the surface of connecting portion have corresponding to the depressed part that location structure set up, location structure at least part hold in the depressed part, follow flexible direction, the inboard surface of depressed part all can with location structure contacts.

In this technical scheme, through above-mentioned structural setting, both realized the relative member of connecting portion along the location of the direction that stretches out and draws back, released the degree of freedom of other directions simultaneously, when needs are dismantled and are maintained, also made things convenient for the separation of the relative member of connecting portion moreover.

Preferably, follow flexible direction, be equipped with the groove of dodging that outwards link up on the inboard surface of depressed part, work as location structure hold in when the depressed part, the member passes through dodge the groove and follow the side surface department of connecting portion stretches out, dodge the groove with member clearance fit.

Other parts of the rod piece are accommodated in the avoiding groove through the arrangement, and the avoiding groove is in clearance fit with the rod piece, so that the interference of the telescopic assembly in the non-telescopic direction due to the contact of the connecting part and the rod piece can be avoided, the influence on the traction of the connecting part relative to the adjusting assembly is avoided, and the traction of the connecting part to the adjusting assembly is stable and reliable.

Preferably, at least one inside surface of the recess has a clearance with respect to a surface of the positioning structure along the telescoping direction.

In this technical scheme, through this structural setting for the location structure of the relative member of depressed part on the connecting portion also has certain movable allowance in along the direction of stretching out and drawing back, avoids the tight connection of the relative location structure of depressed part to lead to producing great frictional force, hinders the relative member of connecting portion along the motion degree of freedom of non-flexible direction.

Preferably, the driving device further includes a reinforcement disposed on the connecting portion, and two ends of the reinforcement are respectively connected to two ends of the recessed portion along the telescopic direction.

In this technical scheme, through this structural arrangement, carry out the structure to the depressed part of connecting portion and strengthen, avoid the depressed part to drive the member and remove the in-process, lead to connecting portion to appear warping because of input load is too big.

Preferably, the driving part includes a power unit and a linear transmission unit;

the power unit is used for outputting first rotary motion, and the linear transmission unit is used for converting the first rotary motion into linear motion and driving the connecting part to move in the linear motion direction so as to drive the flexible transmission mechanism to move; the flexible transmission mechanism is used for converting the linear motion into a second rotary motion.

In the technical scheme, the structure is adopted, so that the space occupied by the transmission of the driving device is relatively more compact, and the overall size of the equipment driven by the driving device is reduced.

Preferably, the driving device is arranged on one side of a battery mounting part of the battery replacement equipment;

the extending direction of the rotation axis of the first rotary motion is the same as the moving direction of the linear motion, and the rotation axis and the linear motion extend along one side of the battery mounting part;

the extending direction of the rotation axis of the second rotational motion is perpendicular to the moving direction of the linear motion and directed toward the battery mounting portion.

In this technical scheme, through this structural setting, make power unit and flexible drive mechanism can be closer to the setting relatively, the transmission direction of straight line drive unit is the same with flexible drive mechanism's length direction, and all sets up the one side at battery installation department, saves connecting space for adopt this drive arrangement's trade electrical equipment's height is lower, and the size is compacter.

Preferably, the driving device further comprises an executing member, and the executing member is arranged on the rotating shaft of the driving wheel and rotates synchronously with the driving wheel.

In this technical scheme, through this structural setting, realize driving the purpose that battery installation department moved along predetermineeing the direction.

Preferably, the flexible member located between the driving wheels of the flexible driving mechanism is composed of a first matching section and a second matching section which are arranged in parallel, the first matching section and the second matching section are respectively provided with an adjusting assembly, and the driving part is connected with the flexible member through one of the adjusting assemblies.

In this technical scheme, through set up the adjusting part simultaneously on two cooperation sections of flexure, through adjusting two adjusting part simultaneously, can balance the internal tension of flexure.

A battery swapping device comprises the driving device.

In the technical scheme, the battery replacing equipment adopting the driving device has the advantages of relatively smaller occupied area and more compact structure.

Preferably, trade electric equipment and include equipment frame and battery installation department, drive arrangement set up in on the equipment frame, and with the battery installation department is connected, is used for the drive the battery installation department for the equipment frame goes up and down, the battery installation department is used for placing the battery package.

In the technical scheme, the driving device is used as a power source for driving the battery mounting part to lift, so that the height of the battery replacement equipment is more compact.

Preferably, the number of the driving devices is two, and the two driving devices are respectively located at two opposite sides of the battery mounting portion.

Through above-mentioned structure setting, not only more steady to the lift drive of battery installation department, avoided the drive mechanism who arranges in battery installation department's other two opposite sides among the prior art moreover, the height of two other opposite sides of battery installation department that can greatly reduced, especially the height of two other opposite side equipment frames to battery package transfer equipment such as the fork for hacking machine or fork truck stretches into from these both sides and shifts the battery package and provide probably.

A power swapping station comprises the power swapping device.

In the technical scheme, the battery replacing station is simpler in structure and more compact in equipment by adopting the battery replacing equipment.

The positive progress effects of the invention are as follows:

in this flexible drive mechanism, contain its drive arrangement, trade electrical equipment and trade the power station, flexible drive mechanism is through setting up the opening on the flexure element to two tip settings that correspond the opening of flexure element with the adjusting part, adjust the tensioning degree of flexure element through the flexible of adjusting part self, make the compact structure of adjusting part, do not additionally occupy the space beyond the flexure element, and the flexure element can not contact with other structures of trading electrical equipment, avoid causing the interference to the motion of flexure element. The flexible transmission mechanism is used for the driving device, the power transmission of the driving part and the flexible transmission mechanism can be further realized by utilizing the adjusting component on the flexible transmission mechanism, the flexible transmission mechanism has two purposes, the structure is ingenious, the structure of the driving device can be more compact, and the occupied space is smaller. The driving device is used in the battery replacing equipment, so that the space occupied by the transmission of the driving device is relatively more compact, and meanwhile, the power equipment with small volume can be used as a power source to reduce the overall size of the equipment driven by the driving device; under the condition of using the double-side independent drive, a transmission mechanism for connecting the actuating pieces on the two opposite sides of the battery installation part is avoided, and the height of the equipment frames on the other two sides of the battery installation part can be reduced.

Drawings

Fig. 1 is a schematic structural view of a flexible transmission mechanism according to embodiment 1 of the present invention.

Fig. 2 is a partial structural view of the flexible transmission mechanism according to embodiment 1 of the present invention.

Fig. 3 is a schematic structural view of a rod according to embodiment 1 of the present invention.

Fig. 4 is a schematic structural view of a flexible transmission mechanism according to embodiment 2 of the present invention.

Fig. 5 is a schematic structural diagram of a power swapping device in embodiment 3 of the present invention.

Fig. 6 is a schematic partial structure diagram of a power swapping device in embodiment 3 of the present invention.

Fig. 7 is a schematic structural diagram (one) of a driving device according to embodiment 3 of the present invention.

Fig. 8 is a schematic structural diagram (ii) of a driving device according to embodiment 3 of the present invention.

Fig. 9 is a partially enlarged view of a portion B in fig. 8.

Fig. 10 is a schematic structural view of a connection portion in embodiment 3 of the present invention.

Fig. 11 is a partial structural schematic view of a driving device according to embodiment 3 of the present invention.

Fig. 12 is a schematic positional relationship diagram of a driving device and a battery mounting portion according to embodiment 3 of the present invention.

Fig. 13 is a schematic view of a connection relationship between a driving device and a battery mounting portion according to embodiment 3 of the present invention.

Description of reference numerals:

battery replacement device 1000

Drive device 100

Flexible transmission mechanism 10

Flexible part 1

Opening 11

Transmission wheel 2

Adjusting assembly 3

Rod 31, telescopic adjusting structure 311

Adjusting member 32, connecting hole 321

Drive unit 20

Power unit 201

A linear transmission unit 202, a stabilizing plate 203, a first slide rail 204

A connecting portion 30, a recessed portion 301, and an escape groove 302

Reinforcing member 40

Actuating member 50

Device frame 200

Second slide rail 210

Battery mounting part 300

Extension direction A

Detailed Description

The present invention will be more fully described in the following detailed description of the preferred embodiments thereof, taken together with the accompanying drawings.

Example 1

The invention provides a flexible transmission mechanism 10 applied to a battery replacement device. As shown in fig. 1, the flexible transmission mechanism 10 includes a flexible member 1, a transmission wheel 2 and an adjustment assembly 3 which are connected in a matching manner. Wherein, two driving wheels 2 are arranged at the left side and the right side, the flexible piece 1 is in a ring shape as a whole, and the two ends of the flexible piece are sleeved on the two driving wheels 2, so that the power transmission is realized.

The flexible part 1 is provided with an opening 11 between the two transmission wheels 2, two ends of the adjusting component 3 along the expansion direction A are respectively connected on the two openings 11 of the flexible part 1, and the adjusting component 3 can expand and contract by itself, so that the adjusting component 3 can expand and contract by itself to adjust the tension degree of the flexible part 1.

This structure is through setting up opening 11 on flexure 1 to with the opening 11 setting of adjusting part 3 corresponding flexure 1, adjust the tensioning degree of flexure 1 through the flexible extension of adjusting part 3 self, make adjusting part 3's compact structure, do not additionally occupy the space beyond flexure 1, and flexure 1 can not contact with other structures of trading electrical equipment, avoid causing the interference to the motion of flexure 1. Therefore, the flexible transmission mechanism 10 is adopted in the battery replacement equipment, an elasticity adjusting structure does not need to be additionally arranged, and the space size occupied by the transmission structure is effectively reduced.

Specifically, the driving wheel 2 in this embodiment is a sprocket wheel, and correspondingly, the flexible member 1 is a transmission chain. The chain transmission does not slip, the average transmission ratio is accurate, and the transmission efficiency is high; sprocket and chain wearing and tearing are little among the transmission process, and the durability is good, still has compact structure's advantage simultaneously, can transmit great moment of torsion, is the heavy load demand that is adapted to trade electrical equipment. The chain transmission adopting the meshing transmission mode can improve the transmission precision and the transmission efficiency.

Of course, in other embodiments, the transmission wheel 2 may be a pulley, and correspondingly, the flexible member 1 is a transmission belt. The belt transmission has the functions of shock absorption and buffering, and is stable in transmission and low in noise. Moreover, the belt transmission has overload protection, can prevent the damage of parts, and can also adopt a meshing type transmission mode. Alternatively, the transmission wheel 2 can be a rope pulley, and correspondingly, the flexible element 1 is a transmission rope. The rope transmission structure is simple, the processing is convenient, the transmission is stable, and no noise, no vibration and no impact are generated.

When the flexible transmission mechanism is used as the motion transmission member, it is preferable to adopt an engagement type flexible transmission system in order to secure transmission accuracy.

In this example, a preferred structural embodiment of the adjustment assembly 3 is also provided. The adjusting assembly 3 comprises a rod 31 and two adjusting pieces 32, wherein the two adjusting pieces 32 are respectively connected to the rod 31 through reverse threads and are arranged at intervals. For example, the left-hand adjusting element 32 and the lever 31 are connected by a left-hand thread in fig. 1, while the right-hand adjusting element 32 and the lever 31 are connected by a right-hand thread. Through such a threaded structure connection, these two regulating parts 32 are formed at both ends of the whole regulating assembly 3 along the self-telescopic direction a, and, under the condition that the two regulating parts are kept not to rotate, the distance between the two regulating parts 32 can be adjusted only by driving the rod member 31 to rotate through external force, so as to achieve the telescopic purpose of the regulating assembly 3. The structure setting scheme is simple and reliable, the number of parts is small, the adjusting efficiency is high, and the structure setting scheme is effectively matched with the equipment with complex structure, such as battery replacement equipment.

In addition, as shown in fig. 2, the adjusting assembly 3 further includes locking members corresponding to the two adjusting members 32, the locking members are also disposed on the rod member 31 in a threaded connection manner and abut against the corresponding adjusting members 32, and by the provision of the locking members, the position of the rod member 31 relative to the adjusting members 32 is prevented from being changed due to external force after adjustment is completed, so that the accuracy of adjustment of the flexible transmission mechanism 10 is improved. In this embodiment, the locking member is a hex nut to facilitate screwing and adjustment by a tool.

Meanwhile, as shown in fig. 3, the surface of the part of the rod 31 exposed out of the two adjusting members 32 is provided with a telescopic adjusting structure 311 protruding outwards along a telescopic direction a different from that of the adjusting assembly 3, and the telescopic adjusting structure 311 is provided to facilitate the user to drive the rod 31 to rotate, thereby achieving the purpose of telescopic adjustment. The telescoping adjustment structure 311 in this embodiment is convex, and in other embodiments, the structure may be concave. More preferably, the structure may be an external shape or a structure adapted to a tool, for example, the telescopic adjusting structure 311 in this embodiment is in an external six-deformation shape, so that a wrench can conveniently clamp the tool, the rod 31 is twisted by the tool to rotate, the adjusting difficulty is reduced, and the adjusting precision can also be improved.

As shown in fig. 1 and 2, two adjusting members 32 are respectively disposed at both ends of the rod member 31, so that the layout of the adjusting assembly 3 is simple and compact. Meanwhile, the adjusting piece 32 and the end of the opening 11 are both provided with a connecting hole 321, so that the adjusting piece 32 is connected with the flexible piece 1 in a pivoting manner, and the connecting manner has high reliability and is convenient to adjust and maintain.

Example 2

In the present embodiment, there is also provided a flexible transmission mechanism 10, which has substantially the same structure as the flexible transmission mechanism 10 in embodiment 1, except that: in this embodiment, as shown in fig. 4, two adjusting assemblies 3 are simultaneously disposed on the flexible member 1 of the flexible transmission mechanism 10 in this embodiment. Specifically, flexible piece 1 that is located between two drive wheels 2 of flexible drive mechanism 10 comprises the first cooperation section and the second cooperation section that set up side by side, it respectively is equipped with adjusting part 3 to equally divide on first cooperation section and second cooperation section, through set up adjusting part 3 simultaneously on two straight sections at flexible piece 1, through adjusting two adjusting part 3 simultaneously, can balance the internal tension of flexible piece 1, the effect of adjustment elasticity is better, in order to satisfy the elasticity regulation demand of trading electrical equipment high accuracy.

Example 3

The invention provides an electricity replacing device 1000, wherein a driving device 100 is arranged in the electricity replacing device 1000, and the flexible transmission mechanism 10 provided in

embodiment

1 or 2 is adopted. In this embodiment, the driving device 100 is connected to the battery mounting portion 300, and is used for driving the battery mounting portion 300 to move up and down, so as to achieve the purpose of replacing the battery.

As shown in fig. 5, the battery replacement apparatus 1000 includes an apparatus frame 200, a battery mount 300, and a driving device 100, wherein the driving device 100 is disposed on the apparatus frame 200 and connected to the battery mount 300 located at a middle position of the apparatus frame 200 for driving the battery mount 300 to move up and down relative to the apparatus frame 200, and the battery mount 300 is used for placing a battery pack relative to the bottom of a vehicle for the purpose of replacing a battery on a chassis of the vehicle.

Specifically, two sets of driving devices 100 in this embodiment are respectively disposed at the front and rear ends of the equipment frame 200 along the traveling direction of the battery replacement equipment 1000, and are simultaneously connected to the battery mounting portion 300 to jointly implement the lifting and lowering of the battery mounting portion 300, and this power distribution design can reduce the power and volume of a single driving device 100, so that the structure of the battery replacement equipment 1000 is more compact, and the equipment height is further reduced.

As shown in fig. 7 and 8, the driving device 100 in this embodiment adopts the flexible transmission mechanism 10 provided in embodiment 2, and has an upper adjusting assembly 3 and a lower adjusting assembly 3, the driving device 100 further includes a driving portion 20 for outputting power, and the driving portion 20 is connected to the flexible member 1 through one of the adjusting assemblies 3, so as to drive the flexible transmission mechanism 10 to operate. The driving device 100 is connected with the flexible part 1 through the driving part 20, and power transmission is realized through a mode of directly driving the flexible part 1 to move, so that the driving device 100 is compact in structure and meets the requirement of compact design.

Specifically, the driving device 100 further includes a connecting portion 30, and the connecting portion 30 is used for connecting the driving portion 20 and the adjusting assembly 3. By providing the connecting portion 30 to connect the driving portion 20 and the adjusting assembly 3, rather than connecting the adjusting assembly 3 directly with the driving portion 20, the structure of the adjusting assembly 3 can be simplified, and the connection between the two is prevented from affecting the function of the adjusting assembly 3 for adjusting the tension degree of the flexible member 1. The connecting portion 30 is used for driving the adjusting assembly 3 to move along the self-expansion direction a. Therefore, the connecting portion 30 only restricts the degree of freedom of the movement of the adjusting assembly 3 along the self-extending direction a, and is only used for driving the adjusting assembly 3 to move along the extending direction of the flexible member 1 (i.e. the self-extending direction a of the adjusting assembly 3), and releases the degree of freedom of the restricting assembly in other directions, so that the driving portion 20 drives the flexible member 1 to move more smoothly around the driving wheel 2, and the possibility of structure locking is eliminated.

The connecting part 30 is connected with a positioning structure arranged on the adjusting component 3, so that the purpose of driving the flexible part 1 to move is achieved.

As shown in fig. 8-10, the present embodiment provides a preferable structural arrangement of the connecting portion 30, specifically, the positioning structure on the adjusting assembly 3 is a telescopic adjusting structure 311 on the rod 31, the surface of the connecting portion 30 has a recess 301 corresponding to the telescopic adjusting structure 311, the lower half portion of the telescopic adjusting structure 311 is accommodated in the recess 301, and the inner side surface of the recess 301 can contact with the telescopic adjusting structure 311 along the telescopic direction a. This kind of structure setting scheme has both realized the relative member 31 of connecting portion along the location of telescopic direction A, has liberated the degree of freedom of other directions simultaneously, when needs are dismantled and are maintained, also makes things convenient for the relative member 31's of connecting portion separation moreover, more makes things convenient for use tool drive extending structure 311 to carry out the rate of tension and adjusts. Meanwhile, the telescopic adjusting structure 311 protruding out of the rod 31 is used for realizing connection relative to the connecting part 30, that is, the telescopic adjusting structure 311 is used as a positioning structure connected with the connecting part 30, and the same part on the rod 31 can play two roles of being driven by the driving part 20 and performing telescopic adjustment, so that the structure can be further simplified.

In other embodiments, the recess 301 can accommodate a tool such as a wrench to insert and rotate the telescoping adjustment structure 311, allowing for tension adjustment without removing the connecting portion 30 from the adjustment assembly 3.

As shown in fig. 9, in the telescopic direction a, the connecting portion 30 is provided with an escape groove 302 penetrating outward on the inner side surface of the recess 301, when the telescopic adjustment structure 311 on the rod member 31 is accommodated in the recess 301, the rod member 31 protrudes from the side surface of the connecting portion through the escape groove 302, and the escape groove 302 is in clearance fit with the rod member 31. Other parts of the rod piece 31 accommodated in the groove 302 can be avoided through the arrangement, interference on the adjusting assembly 3 in the non-telescopic direction caused by contact of the connecting part 30 and the rod piece 31 can be avoided, so that influence on traction of the connecting part 30 relative to the adjusting assembly 3 is avoided, traction of the connecting part 30 relative to the adjusting assembly 3 is stable and reliable, and the relative connection reliability of the connecting part 30 and the rod piece 31 is improved.

Meanwhile, in order to ensure the freedom of movement, along the telescopic direction a, one of the inner side surfaces of the recess 301 is provided with a gap relative to the side surface of the telescopic adjusting structure 311, so that the recess 301 on the connecting portion also has a certain movement allowance relative to the rod 31 along the telescopic direction a, thereby avoiding the generation of a large friction force caused by the tight connection of the recess 301 relative to the telescopic adjusting structure 311 and hindering the freedom of movement of the connecting portion relative to the rod 31 along the non-telescopic direction a.

Of course, in other embodiments, a separate positioning structure different from the telescopic adjustment structure 311 may be provided on the adjustment assembly 3 to achieve the connection with the connection portion 30.

In addition, as shown in fig. 8, the driving device 100 further includes a reinforcing member 40, the reinforcing member 40 is disposed on the connecting portion, and both ends of the reinforcing member 40 are respectively connected to both ends of the recess 301 in the extending and contracting direction a. Through this structure setting, realize carrying out the structure to the depressed part 301 of connecting portion and strengthen, avoid depressed part 301 to drive the member 31 and remove the in-process, lead to connecting portion to appear warping because of input load is too big. The reinforcing member 40 may be riveted to the connecting portion 30, or may be screwed to the connecting portion 30.

As shown in fig. 7, 10, and 11, the driving unit 20 in the present embodiment specifically includes a power unit 201, a linear transmission unit 202, a stabilizing plate 203, and two first slide rails 204. The power unit 201 is a servo motor for outputting a first rotational motion, the linear transmission unit 202 is a screw-nut transmission mechanism, the screw is connected to an output shaft of the servo motor for converting the first rotational motion into a linear motion, the nut is detachably connected to the connection portion 30 through a bolt, and drives the connection portion 30 to move in a linear motion direction, so as to drive the flexible transmission mechanism 10 to move, wherein the linear motion direction is a stretching direction a.

After that, the transmission wheel 2 of the flexible transmission mechanism 10 is passively rotated, so that the linear motion (in the telescopic direction a) is converted into the second rotational motion.

With such a transmission scheme as described above, the space occupied by the transmission of the driving device 100 is relatively more compact to reduce the overall size of the apparatus that is driven using the driving device 100. Meanwhile, the linear transmission unit 202 is realized by adopting a screw nut transmission mechanism, so that a larger reduction ratio is provided on the premise of occupying a smaller space, the space size occupied by the structure is further favorably compressed, the use of a small-size servo motor is made possible, and the size of the used servo motor is further reduced.

In addition, the power unit 201 adopts a servo motor, so that the synchronism of the two driving devices 100 can be ensured, and the reliable lifting of the battery mounting part 300 can be ensured.

As shown in fig. 11, in the present embodiment, the driving portion 20 includes a stabilizing plate 203 and two first slide rails 204. The stabilizing plate 203 is fixedly connected with the nut of the linear transmission unit 202, and the two first slide rails 204 are fixed on the frame of the driving rod device and form a slide pair with the stabilizing plate 203. When the nut in the linear transmission unit 202 is driven by the screw rod to make linear motion, the nut drives the stabilizing plate 203 to make linear motion along the first slide rail 204. The stabilizing plate 203 and the first slide rail 204 are arranged to guide the nut to move along the screw rod, so that the stability of the linear transmission unit 202 is improved. In other embodiments, the stabilizing plate 203 and the first slide rail 204 may not be provided.

In the present embodiment, as shown in fig. 12, two driving devices 100 are respectively provided on the front and rear sides of the battery mounting portion 300 of the battery replacement apparatus 1000. For each drive device 100, the direction of extension of the rotational axis of the first rotational motion output by the power unit 201 is the same as the direction of motion of the linear motion (i.e., the telescopic direction a), and each extends along a side of the battery mount 300. And the rotational axis of the second rotational motion extends in a direction perpendicular to the moving direction of the linear motion (i.e., the expansion and contraction direction a) and directed toward the battery mount 300. Under the arrangement scheme, the power unit 201 and the flexible transmission mechanism 10 can be arranged relatively closer, the connection space is saved, and the battery replacement device 1000 adopting the driving device 100 has lower height and more compact size. Two drive arrangement 100 components of a whole that can function independently set up and synchronization action, come the lift of drive battery installation department 300, not only to the lift drive of battery installation department 300 more steady, but also avoided the drive mechanism who arranges in the other two opposite sides of battery installation department 300 among the prior art, can greatly reduced the height of two other opposite sides of battery installation department 300, especially the height of two other opposite side equipment frames 200 to stretch into from these both sides for battery package transfer equipment such as the fork of hacking machine or fork truck and shift the battery package and provide probably.

As shown in fig. 8, the driving device 100 further includes an actuating member 50, the actuating member 50 is disposed on the rotation shaft of the transmission wheel 2 and rotates synchronously with the transmission wheel 2, in this embodiment, the actuating member 50 is a cam, and is movably connected to the battery mounting portion 300 to drive the battery mounting portion 300 to move along a predetermined direction (see fig. 13). The specific structure and arrangement of the cam-driven battery mounting portion 300 are not described herein again because they belong to the prior art. As shown in fig. 5 and 6, four second slide rails 210 are respectively provided near four corners of the apparatus frame, and four sliders are also respectively provided at corresponding positions near four corners of the battery mounting portion, so that the battery mounting portion can move up and down along the second slide rails 210 by one-to-one engagement of the four sliders with the four second slide rails 210.

It should be particularly noted that, although the driving device 100 in the present embodiment is used for lifting and lowering the battery mounting portion 300 of the battery replacement device 1000, this is only a preferred embodiment of the driving device 100 provided by the present invention, and the function of the driving device 100 provided by the present invention is not limited thereto. In other embodiments, the driving device 100 may be used as a traveling mechanism for driving the battery replacing apparatus 1000 to horizontally move, or may be used as a steering mechanism for driving the battery replacing apparatus 1000 to rotate, or the like.

The invention further provides a battery replacement station which adopts the battery replacement device 1000. By adopting the battery replacing device 1000, the structure of the battery replacing station is relatively simpler, the device is more compact, the occupied area is saved, and the construction cost is saved.

Claims

1. A flexible transmission mechanism comprises a flexible part and transmission wheels which are connected in a matched mode, and is characterized by further comprising an adjusting assembly, wherein the adjusting assembly is telescopic, an opening is formed in the flexible part between the transmission wheels, two ends of the adjusting assembly in the telescopic direction of the adjusting assembly are connected with two ends of the opening in the flexible part respectively, and the adjusting assembly is telescopic by the adjusting assembly to adjust the tensioning degree of the flexible part.

2. The flexible drive mechanism according to claim 1, wherein the adjustment assembly includes a rod member and two adjustment members, the two adjustment members are respectively connected to the rod member through opposite threads and are spaced apart from each other, the two adjustment members form two ends of the adjustment assembly along the expansion direction of the adjustment assembly, and the expansion and contraction of the adjustment assembly are achieved by driving the rotation of the rod member to adjust the spacing between the two adjustment members.

3. The flexible drive mechanism according to claim 2, wherein a surface of the lever member exposed to the two adjustment members has a telescopic adjustment structure extending in a direction different from the telescopic direction of the adjustment assembly.

4. A flexible drive mechanism as claimed in claim 3, wherein the telescopic adjustment structure is provided as a recess or projection relative to the surface on which it is located and is adapted to be engaged by a tool for rotation.

5. The flexible drive mechanism according to claim 2, wherein the adjustment assembly further comprises a locking member disposed corresponding to the adjustment member, the locking member being connected to the rod member by a screw thread and abutting against the corresponding adjustment member;

6. A flexible drive mechanism as claimed in any one of claims 1 to 5, wherein the drive wheels are sprockets and the flexible members are transfer chains; or, the driving wheel is a belt wheel, and the flexible part is a transmission belt; or the driving wheel is a rope wheel, and the flexible part is a driving rope.

7. A driving device, characterized in that the driving device comprises a driving part and a flexible transmission mechanism as claimed in any one of claims 1 to 6, wherein the driving part is connected with the flexible member through the adjusting component to drive the flexible transmission mechanism to act.

8. The drive of claim 7, further comprising a coupling portion for coupling the drive portion and the adjustment assembly.

9. The drive of claim 8, wherein the connecting portion is configured to move the adjustment assembly in a self-retracting direction.

10. The drive of claim 8, wherein the surface of the adjustment assembly has a detent that is raised or recessed in a direction different from the telescoping direction of the adjustment assembly, the connecting portion being contactable with the detent in the telescoping direction.

11. A drive arrangement according to claim 10, wherein the connecting portion is a clearance fit with the locating formation in a direction perpendicular to the telescopic direction.

12. The driving device as claimed in claim 11, wherein the adjusting assembly includes a rod member and two adjusting members, the two adjusting members are respectively connected to the rod member through reverse threads and are spaced apart from each other, the two adjusting members form two ends of the adjusting assembly along the self-expansion direction, and the surface of the rod member exposed out of the two adjusting members has the positioning structure; the positioning structure is arranged as a concave structure or a convex structure relative to the surface of the rod piece and can be used for butting against a tool for rotation.

13. The driving apparatus as claimed in claim 12, wherein said positioning structure is a projecting structure formed on a surface of said lever member exposed to portions of both of said adjusting members and extending outward;

14. The driving apparatus as claimed in claim 13, wherein, in the telescopic direction, an avoiding groove is formed on an inner side surface of the recess portion and extends outwardly therethrough, and when the positioning structure is received in the recess portion, the rod member extends out from a side surface of the connecting portion through the avoiding groove, and the avoiding groove is in clearance fit with the rod member.

15. The drive of claim 13, wherein at least one inside surface of the recess has a clearance with respect to a surface of the positioning structure in the telescoping direction.

16. The driving apparatus as claimed in claim 13, further comprising a reinforcing member provided on the connecting portion, both ends of the reinforcing member being connected to both ends of the recess portion in the telescopic direction, respectively.

17. The drive device according to any one of claims 8 to 16, wherein the drive portion includes a power unit and a linear transmission unit;

18. The driving apparatus as claimed in claim 17, wherein the driving apparatus is provided at one side of a battery mounting portion of the battery replacement device;

19. The driving apparatus as claimed in claim 17, wherein said driving apparatus further comprises an actuating member disposed on a rotational axis of said driving wheel and rotating in synchronization with said driving wheel.

20. The driving apparatus as claimed in claim 7, wherein said flexible member located between said driving wheels of said flexible transmission mechanism is composed of a first engaging section and a second engaging section arranged side by side, each of said first engaging section and said second engaging section is provided with an adjusting assembly, respectively, and said driving portion is connected to said flexible member through one of said adjusting assemblies.

21. A battery swapping apparatus, characterized in that the battery swapping apparatus comprises a driving device as claimed in any one of claims 7-20.

22. The battery replacement device of claim 21, wherein the battery replacement device comprises a device frame and a battery installation portion, the driving device is disposed on the device frame and connected to the battery installation portion for driving the battery installation portion to ascend and descend relative to the device frame, and the battery installation portion is used for placing a battery pack.

23. A swapping station comprising a swapping device as claimed in claim 21 or 22.