CN113188330A

CN113188330A - Tunnel type lithium battery heating furnace

Info

Publication number: CN113188330A
Application number: CN202110358272.9A
Authority: CN
Inventors: 张孝平; 文青松; 汪毅; 朱成明; 刘志伟; 王佳利; 梁超; 刘欢
Original assignee: Changzhou Dacheng Vacuum Technology Co ltd; Dongguan Dacheng Intelligent Equipment Co ltd; Shenzhen Dacheng Precision Equipment Co ltd
Current assignee: Changzhou Dacheng Vacuum Technology Co ltd; Dongguan Dacheng Intelligent Equipment Co ltd; Shenzhen Dacheng Precision Equipment Co ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-07-30

Abstract

The invention discloses a tunnel type lithium battery heating furnace, which comprises a furnace body, a heating cavity and a heating cavity, wherein the furnace body is provided with a long-strip tunnel type cavity; and the conveying device comprises a first walking track and a bearing mechanism, the first walking track is laid in the heating cavity, the first walking track extends from the inlet end to the outlet end of the cavity, and the bearing mechanism is used for conveying the lithium battery tray from the inlet end to the outlet end of the cavity along the first walking track. Because the rectangular tunnel structure of the cavity formula as an organic whole of furnace body, and conveyer is along rectangular tunnel structure installation, extend to the other end from the one end of cavity, be a long distance conveyer in the furnace body, load mechanism can be along first walking track with the loading have the lithium cell tray transmission of lithium cell to the cavity in, carry out thermal treatment to the lithium cell in the data send process, the relative sectional type of integral type structure is simpler, incessant conveying heating also can avoid the card of power switching to pause, can also reduce the setting of motor, reduce the energy consumption.

Description

Tunnel type lithium battery heating furnace

Technical Field

The invention relates to the technical field of lithium battery production and manufacturing, in particular to a tunnel type lithium battery heating furnace.

Background

When the lithium battery is heated in the tunnel furnace, a mechanism for bearing the battery needs to be driven to move in the tunnel cavity; in the prior art, chinese utility model patent with application number "CN 201721298692.8" discloses "a separate dynamic contact system with heating and cooling functions, which comprises a cavity body, a servo motor, a cylinder, a cooling mechanism, a tooth shifting mechanism and a heating movable contact mechanism. The device is divided into a plurality of sections of cavities, a transmission structure and a heating device are arranged in each section of cavity, the device is complex in structure, power switching needs to be frequently carried out during operation to drive the rack to move, and the phenomenon of blocking is easy to occur during power switching; in addition, the driving needs to be provided with a plurality of motors, and the energy consumption is large.

Disclosure of Invention

The invention provides a tunnel type lithium battery heating furnace which is simple in structure, can stably and smoothly transfer lithium batteries and saves energy consumption.

An embodiment provides a tunnel type lithium battery heating furnace, including:

the furnace body is provided with a long-strip tunnel type cavity, one end of the cavity is an inlet end, the other end of the cavity is an outlet end, a heating cavity is arranged in the cavity, and the heating cavity is arranged along the length direction of the cavity; and

the conveying device comprises a first walking track and a bearing mechanism, the first walking track is laid in the heating cavity and extends from the inlet end to the outlet end of the cavity, the bearing mechanism is arranged on the first walking track, and the bearing mechanism is used for conveying the lithium battery tray to the outlet end from the inlet end of the cavity along the first walking track.

Further, still be equipped with buffer memory chamber and transfer device in the cavity, the buffer memory chamber is followed the length direction of cavity sets up, the transfer device includes second walking track and transfer mechanism, the second walking track is laid in the buffer memory intracavity, transfer mechanism sets up on the second walking track, transfer mechanism is used for with lithium cell tray along the second walking track is followed the exit end of cavity is shifted to the entrance point on the bearing mechanism.

Further, be equipped with in the cavity and bear the frame, bear the frame and be bilayer structure, the lower floor that bears the frame does the heating chamber, first walking track fixed mounting is in bear the lower floor of frame, the upper strata that bears the frame does the buffer memory chamber, second walking track fixed mounting is in bear the upper strata of frame.

Further, the first walking track is located at the lower end of the heating cavity, and the second walking track is located at the upper end of the cache cavity.

Further, the heating cavity is an independent inner cavity, and a heat insulation layer is arranged in the heating cavity.

Furthermore, side doors for installation and maintenance are arranged on two sides of the furnace body.

Further, still include loading attachment and unloader, loading attachment and unloader are located respectively the both ends of furnace body, loading attachment with the entrance point butt joint of cavity, loading attachment is used for shifting the lithium cell to on the lithium cell tray, unloader with the exit end butt joint of cavity, unloader is used for following the lithium cell turns out on the lithium cell tray.

Furthermore, the two ends of the first walking track extend to the feeding device and the discharging device respectively, the bearing mechanism is used for moving to bear a lithium battery tray provided with a lithium battery in the feeding device, and the bearing mechanism is also used for moving to unload the lithium battery and the lithium battery tray in the discharging device.

Furthermore, the two ends of the second walking track respectively extend into the feeding device and the discharging device, the transfer mechanism is used for transferring the lithium battery tray which does not bear the lithium battery into the feeding device from the cache cavity, and the transfer mechanism is also used for transferring the lithium battery tray for unloading the lithium battery into the cache cavity from the bearing mechanism.

Furthermore, a first cache position and a second cache position for placing the lithium battery tray are arranged in the cache cavity, the first cache position is close to the inlet end of the cavity, and the second cache position is close to the outlet end of the cavity; the transfer mechanism is used for transferring the lithium battery tray from the outlet end of the cavity to the second cache position, displacing the lithium battery tray from the second cache position to the first cache position, and transferring the lithium battery tray from the first cache position to the bearing mechanism at the inlet end of the cavity.

Further, the transfer mechanism comprises a first transfer mechanism, a second transfer mechanism and a third transfer mechanism, the third transfer mechanism is used for transferring the lithium battery tray from the outlet end of the cavity to the second cache position, the second transfer mechanism is used for displacing the lithium battery tray from the second cache position to the first cache position, and the first transfer mechanism is used for transferring the lithium battery tray from the first cache position to the bearing mechanism at the inlet end of the cavity.

According to tunnel type lithium cell heating furnace of above-mentioned embodiment, because the rectangular tunnel structure of the cavity formula as an organic whole of furnace body, and conveyer is along rectangular tunnel structure installation, extend to the other end from the one end of cavity, be a long distance conveyer in the furnace body, bearing mechanism can be along first walking track with the lithium cell tray transmission that the loading has the lithium cell to the heating intracavity, carry out thermal treatment to the lithium cell in the data send process, the relative sectional type of integral type structure is simpler, the card that power switching also can be avoided in incessant conveying heating is pause, can also reduce the setting of motor, reduce the energy consumption.

Drawings

FIG. 1 is a front view of a tunnel lithium battery furnace according to an embodiment;

FIG. 2 is a side view of a tunnel lithium battery furnace according to an embodiment;

FIG. 3 is a perspective view of a tunnel type lithium battery heating furnace with a charging and discharging device in one embodiment;

FIG. 4 is a side view of a tunnel type lithium battery heating furnace with a charging and discharging device in an embodiment;

FIG. 5 is a perspective view of a tape loading mechanism in one embodiment;

FIG. 6 is a front view of a load bearing mechanism in one embodiment;

FIG. 7 is a side view of a load bearing mechanism in one embodiment;

FIG. 8 is a schematic view of an embodiment of a support mechanism for supporting a tray of lithium batteries;

FIG. 9 is an enlarged view of a portion of the load bearing mechanism in one embodiment;

FIG. 10 is an enlarged view of portion A of FIG. 9;

FIG. 11 is a top view of a transfer mechanism in one embodiment;

FIG. 12 is a bottom view of the transfer mechanism in one embodiment;

FIG. 13 is an enlarged view of detail B of FIG. 12;

FIG. 14 is a side view of a lift assembly according to one embodiment;

in the figure, 1-furnace body, 11-bottom plate, 12-left side plate, 13-right side plate, 14-top plate, 15-left oblique beam, 16-right oblique beam, 17-supporting foot, 18-cavity, 181-heating cavity, 182-buffer cavity, 2-conveying device, 21-first walking track, 211-pin shaft, 22-bearing mechanism, 221-first support, 222-first walking wheel, 223-first walking motor, 224-first guide wheel, 3-transfer device, 31-second walking track, 32-transfer mechanism, 321-second support, 3211-lifting support, 3212-fixed support, 322-grabbing component, 3221-mounting seat, 3222-clamping jaw, 3223-first cylinder, 3224-push rod, 3225-a second air cylinder, 3226-a sliding rail, 323-a traveling wheel, 324-a guide wheel, 325-a second traveling motor, 33-a lifting component, 331-a fixing plate, 332-a lifting plate, 333-a lifting motor, 334-a screw rod, 335-a guide rod, 336-a buffer sleeve, 337-a connecting plate, 338-a limit switch, 4-a bearing frame, 41-an oil groove, 42-a fixing block, 43-a buffer body, 44-an inner cavity plate, 5-a lithium battery tray, 6-a feeding device, 61-a feeding bracket, 62-a feeding mechanism, 63-a feeding lifting mechanism, 7-a discharging device, 71-a discharging bracket, 72-a discharging mechanism and 73-a discharging lifting mechanism.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

This embodiment provides a tunnel type lithium cell heating furnace, tunnel type lithium cell heating furnace has the rectangular tunnel cavity of integral type, is provided with the conveyer that extends to the other end from one end at the cavity, and conveyer can be smooth and easy will load the lithium cell tray that has the lithium cell and convey in the cavity, realizes the heating while conveying, when can improve conveying efficiency, reduces the consumption.

Referring to fig. 1 and 2, the tunnel type lithium battery heating furnace of the present embodiment mainly includes a furnace body 1, a heating device (not shown), a conveying device 2, and a transferring device 3. Heating device, conveyer 2 and transfer device 3 all install in furnace body 1, and heating device is used for heating the lithium cell tray, and conveyer 2 is used for conveying the lithium cell tray to the export from furnace body 1's entry to make the lithium cell can be in 1 heat treatment of furnace body, and transfer device 3 is used for shifting the lithium cell tray in 1 exit of furnace body to the entrance, realizes the recycling of lithium cell tray. Wherein, heating device also can directly install on the lithium cell tray, also can realize the heating to the lithium cell.

In this embodiment, the furnace body 1 is a long-strip-shaped box body, the furnace body 1 includes a bottom plate 11, a left side plate 12, a right side plate 13, a top plate 14, a left oblique beam 16 and a right oblique beam 17, the bottom plate 11, the left side plate 12, the right side plate 13 and the top plate 14 enclose a cavity 18, supporting legs 19 are installed at the lower end of the bottom plate 11, a long-strip tunnel-type cavity 18 is formed in the furnace body 1, and the cross section of the cavity 18 is square. The upper end of the cavity 18 is provided with a left oblique beam 16 and a right oblique beam 17 which improve the structural strength, the left oblique beam 16 is connected between the left side plate 12 and the top plate 14, and the right oblique beam 17 is connected between the right side plate 13 and the top plate 14. One end of the cavity 18 is an inlet end, and the other end is an outlet end, wherein the inlet end is used for transmitting the lithium battery tray 5 to be heat-treated, and the outlet end is used for transmitting the heat-treated lithium battery tray 5.

The left side plate 12 and the right side plate 13 are respectively provided with a side door, and the side doors can be opened for installing and maintaining the conveying device 2, the transferring device 3 and the heating device in the cavity 18.

Referring to fig. 2, the furnace body 1 is formed by serially splicing a plurality of unit box bodies, and the length of the furnace body 1 can be adjusted according to actual requirements to meet the requirements of heat treatment.

In other embodiments, the bottom plate of the furnace body 1 may also be directly the ground, and the furnace body 1 is enclosed by the ground, the left side plate 12, the right side plate 13 and the top plate 14, and can also form a tunnel type cavity.

In other embodiments, the cross section of the furnace body 1 can also be circular, semicircular or elliptical, and the like, and the cross section of the furnace body 1 can be set according to the terrain or the requirement.

In this embodiment, the carrier 4 is arranged in the cavity 18, the carrier 4 extending from an inlet end to an outlet end of the cavity 18. The bearing frame 4 is formed by splicing a plurality of cross beams and longitudinal beams, the bearing frame 4 is of a double-layer structure, the lower layer of the bearing frame 4 is a heating cavity 181, and the upper layer of the bearing frame 4 is a buffer cavity 182. The conveyor 2 is mounted in a heating chamber 181 in the lower level of the carriage 4 and the transfer device 3 is mounted in a buffer chamber 182 in the upper level of the carriage 4.

Referring to fig. 3, the inner cavity plate 44 is installed on the carriage 4, and the inner cavity plate 44 encloses the heating cavity 181, so that the heating cavity 181 forms an independent inner cavity, and the heating cavity 181 is separated from other areas of the cavity 18 to perform the functions of heat preservation and heat accumulation, thereby providing the efficiency of heat treatment.

The inner side of the inner cavity plate 44 is also provided with a heat insulation layer, and the heat insulation layer further realizes the heat insulation effect, thereby being beneficial to providing the heat treatment efficiency and reducing the energy consumption.

The conveying device 2 comprises a first walking track 21 and a bearing mechanism 22, the first walking track 21 is fixedly mounted on the lower layer of the bearing frame 4 and is located at the lower end of the heating cavity 181, the bearing mechanism 22 is movably arranged on the first walking track 21, the bearing mechanism 22 is used for bearing and conveying the lithium battery tray 5, the bearing mechanism 22 has power and can convey the lithium battery tray 5 to the outlet end from the inlet end of the cavity 18, namely, the bearing mechanism 22 can bear the lithium battery tray 5 to carry out heat treatment on the lithium battery in the heating cavity 181.

The transfer device 3 comprises a second walking track 31 and a transfer mechanism 32, the second walking track 31 is fixedly mounted at the uppermost end of the bearing frame 4 and is located at the upper end of the buffer cavity 182, the transfer mechanism 32 is movably arranged on the second walking track 31, the transfer mechanism 32 is used for grabbing and transferring the lithium battery tray 5, the transfer mechanism 32 has power and can convey the lithium battery tray 5 from the outlet end to the inlet end of the cavity 18 and place the lithium battery tray 5 on the bearing mechanism 22 at the inlet end of the cavity 18, and the transfer mechanism 32 realizes the recycling of the lithium battery tray 5.

In this embodiment, the buffer cavity 182 buffers the lithium battery tray 5, and can also be used as a channel for conveying the lithium battery tray 5. A first buffer position and a second buffer position are arranged in the buffer cavity 182, the first buffer position is arranged at the position close to the inlet end of the cavity 18, and the second buffer position is arranged at the position close to the outlet end of the cavity 10. And the first cache position and the second cache position are provided with bearing structures, and the bearing structures are used for stacking the lithium battery tray 5.

Referring to fig. 3 and 4, in the present embodiment, a feeding mechanism 6 and a discharging mechanism 7 are respectively installed at two ends of the furnace body 1, wherein the feeding mechanism 6 is in butt joint with an inlet end of the cavity 18, and the discharging mechanism 7 is in butt joint with an outlet end of the cavity 18. The feeding mechanism 6 is used for transferring the lithium batteries to the lithium battery trays 5 carried by the carrying mechanism 22, and the discharging mechanism 7 is used for transferring the lithium batteries on the lithium battery trays 5 carried by the carrying mechanism 22 to the next process.

The feeding mechanism 6 comprises a feeding support 61 and a feeding mechanism 62, the feeding mechanism 62 is installed on the feeding support 61, the feeding mechanism 62 comprises a mechanical arm and a sucker, the sucker is installed on the mechanical arm, the mechanical arm can move in a three-dimensional mode, and the mechanical arm is used for driving the sucker to transfer lithium batteries on the material line to a lithium battery tray on the feeding support 61. Still install material loading elevating system 63 on the material loading support 61, material loading elevating system 63 includes subassemblies such as crane, lift driving motor, synchronizing shaft, hold-in range, and material loading elevating system 63 is used for driving lithium cell tray 5 and goes up and down to cooperate the material loading of material loading mechanism 62, improve material loading efficiency.

The blanking mechanism 7 is similar to the feeding mechanism 6 in structure, the blanking mechanism 7 comprises a blanking support 71 and a blanking mechanism 72, the blanking mechanism 72 is installed on the blanking support 71, the blanking mechanism 72 comprises a mechanical arm and a sucker, the sucker is installed on the mechanical arm, the mechanical arm can move in a three-dimensional mode, and the mechanical arm is used for driving the sucker to transfer a lithium battery on the blanking support 71 to a blanking line. Still install unloading elevating system 73 on unloading support 71, unloading elevating system 73 is used for driving lithium cell tray 5 and goes up and down to cooperate unloading mechanism 72 material loading, improve material loading efficiency.

Referring to fig. 5, in the present embodiment, two ends of the first traveling rail 21 extend into the feeding bracket 61 and the discharging bracket 71, respectively, so that the bearing mechanism 22 can travel to the feeding lifting mechanism 63 or the discharging lifting mechanism 73 to realize feeding and discharging.

Both ends of the second traveling rail 31 extend into the feeding support 61 and the discharging support 71, respectively, so that the transferring mechanism 32 can move the lithium battery tray 5 on the feeding support 61 and the discharging support 71.

In this embodiment, the feeding mechanism 6 is further provided with a starting cylinder, and the starting cylinder is used for driving the bearing mechanism 22. When the carrying mechanism 22 is in the initial position, there may be incomplete meshing between the sprocket and the chain, or between the sprocket and the rack, and damage easily occurs in direct operation. Before the bearing mechanism 22 is started at the initial position, the starting cylinder firstly pushes the bearing mechanism 22 to move, so that the chain wheels and the chains or the gear and the rack are completely meshed, and lossless meshing walking can be realized in the subsequent self-driving moving process of the bearing mechanism 22.

In this embodiment, three transfer mechanisms 3, namely a first transfer mechanism, a second transfer mechanism and a third transfer mechanism, are sequentially arranged on the second traveling rail 31 from the inlet end to the outlet end of the cavity 18, the first transfer mechanism is arranged at the inlet end of the cavity 18, the second transfer mechanism is arranged in the cavity 18, and the third transfer mechanism is arranged at the outlet end of the cavity 18.

The heating operation of the heating furnace of the present embodiment is as follows:

s1: the bearing mechanism 22 moves to the lower end of the upper frame mechanism 6, and the first transfer mechanism transfers the lithium battery tray 5 located at the first cache position to the upper frame mechanism 6;

s2: the first transfer mechanism places the lithium battery tray 5 on the feeding lifting mechanism 63, and starts the feeding mechanism 62 to transfer the lithium battery from a feeding material streamline to the lithium battery tray 5;

s3: after the loading is finished, the lithium battery tray 5 is placed on the bearing mechanism 22 by the loading lifting mechanism 63;

s4: the bearing mechanism 22 bears the lithium battery tray 5, enters the heating cavity 181 for heating, bears the heated lithium battery tray 5, and walks to the lower end of the blanking support 71;

s5: the blanking lifting mechanism 73 lifts the lithium battery tray 5 carrying the heated lithium battery, and the blanking mechanism 72 is started to transfer the heated lithium battery to a blanking material line;

s6: after the blanking is finished, the third transfer mechanism moves to the upper end of the blanking support 71 to grab the lithium battery tray 5, and transfers the lithium battery tray 5 to a second cache position;

s7: the second transfer mechanism transfers the lithium battery tray 5 of the second buffer position to the first buffer position.

The lithium battery tray 5 is circularly transferred, and uninterrupted lithium battery heat treatment is realized. Wherein, the setting of first buffer memory position and second buffer memory position can satisfy enough lithium cell tray 5 of buffer memory to guarantee that lithium cell tray 5 can adapt the operating frequency of lithium cell tray 5 in the heating chamber 181.

In this embodiment, three transfer mechanisms 3 are arranged in the cavity 18, so that the lithium battery tray can be transferred from the outlet end of the cavity 18 to the inlet end of the cavity 18, the lithium battery tray can be recycled, and the heat treatment efficiency of the lithium battery is greatly improved.

In other embodiments, when the length of the cavity 18 is longer, 4 or more transfer mechanisms 3 may be disposed in the cavity 18, and more buffer positions may be disposed, so as to improve the transportation efficiency of the lithium battery tray. When the length of cavity 18 is short, set up a buffer position and set up two and shift the mechanism in cavity 18 can satisfy its requirement. Specifically, the two transfer mechanisms are respectively a first transfer mechanism and a second transfer mechanism, the second transfer mechanism is used for transferring the lithium battery tray 5 at the outlet end of the cavity 18 to the buffer position, and the first transfer mechanism is used for transferring the lithium battery tray 5 at the buffer position to the bearing mechanism 22 at the inlet end of the cavity 18.

In this embodiment, heating device installs in heating chamber 181, and heating device is hot air heating device, and heating device heats the lithium cell through hot air with the leading-in heating chamber 181 of hot air.

In other embodiments, the heating device is installed on the lithium battery tray 5, the heating device is in a cable structure, and the heating device heats the lithium battery by electrifying the lithium battery.

Referring to fig. 6 and 7, the supporting mechanism 22 includes a first bracket 221, a first traveling wheel 222, and a first traveling motor 223. The first support 221 is a supporting structure for supporting the lithium battery tray 5. The first traveling wheels 222 are sprockets and are installed at both sides of the first bracket 221. The support means 22 is arranged on the first running rail 21 by means of a first running wheel 222, and a sprocket wheel is engaged on a chain, which runs along the chain. The first traveling motor 223 is connected to the first traveling wheel 222 through a belt or the like, and the first traveling motor 223 is used to drive the first traveling wheel 222 to convey the lithium battery tray 5 along the first traveling rail 21.

Referring to fig. 8, the first support 221 can support multiple stacked lithium battery trays 5, and the multiple lithium battery trays 5 are conveyed into the cavity 18 for heat treatment.

In other embodiments, the first running rail 21 may be a rack, the first running wheel 222 may be a gear, and the transmission movement may be realized by the connection of the gear and the rack.

Referring to fig. 6 and 7, in the present embodiment, a first guide wheel 224 is further installed on the first bracket 221, and the first guide wheel 224 includes a guide wheel parallel to the first traveling wheel 222 and a guide wheel perpendicular to the first traveling wheel 222; be provided with first guide rail beside first walking track 21, first guide rail has two spigot surfaces of mutually perpendicular, two kinds of first leading wheels 224 that are located equidirectional are walked respectively on two spigot surfaces of first guide rail, follow the walking of the spacing first leading wheel 224 of two directions, make first leading wheel 224 can stabilize and walk along first walking track 21, can avoid derailing, wherein the leading wheel parallel with first walking wheel 222 mainly plays the effect of bearing, reduce the extrusion force between first walking wheel 222 and the first walking track 21.

A plurality of bearing mechanisms 22 may be disposed on the first traveling rail 21, and the plurality of bearing mechanisms 22 can bear more lithium battery trays 5, thereby improving the efficiency of the heat treatment.

Referring to fig. 9 and 10, the loading frame 4 is provided with an elongated oil groove 41, the first traveling rail 21 (chain) is installed in the oil groove 41, and the oil groove 41 is used for adding lubricating oil, so that the chain is smooth enough to improve the smoothness of traveling of the loading mechanism 22. The oil groove 41 is enclosed on the surface of the bearing frame 4 through side plates, and the oil groove 41 can also be formed by inwards processing the bearing frame 4.

A plurality of fixed blocks 42 are arranged in the oil groove 41 at intervals, and the chain is laid on the fixed blocks 42. The chain passes through fixed block 42 and bears frame 4 fixed connection, and fixed block 42 is L type structure, and the vertical board of fixed block 42 passes through the nut or the welding mode is connected with the round pin axle 211 of chain, and the vertical board of preferred fixed block 42 is connected with two adjacent round pin axles 211 on the chain to improve the stability of installation. The horizontal plate of the fixing block 42 is fixedly connected with the bearing frame 4 through screws.

Still be equipped with buffer 43 at oil groove 41, buffer 43 is elastic material such as plastics or rubber, and buffer 43 includes a plurality of rectangular form structures, and buffer 43 sets up between bearing frame 4 and chain, and buffer 43 still is located between a plurality of fixed blocks 42, and the most part of chain is located buffer 43, and buffer 43 mainly plays the effect of buffering for avoid the chain and bear the direct collision or the extrusion of frame 4, can improve the life of chain.

In this embodiment, tunnel type lithium cell heating furnace, because the rectangular tunnel structure of cavity 18 formula as an organic whole of furnace body 1, and conveyer 2 is along rectangular tunnel structure installation, extend to the other end from the one end of cavity 18, be a long distance conveyer 2 in the furnace body 1, bearing mechanism 22 can be along first walking track 21 with the lithium cell tray 5 transmission that has the lithium cell to the cavity 18 in, carry out thermal treatment to the lithium cell in the data send process, the relative sectional type of integral type structure is simpler, incessant conveying heating also can avoid the card of power switching to pause, can also reduce the setting of motor, reduce the energy consumption.

In this embodiment, the structure of the transfer mechanism 32 is slightly larger than that of the carrying mechanism 22, the transfer mechanism 32 has the same walking structure as that of the carrying mechanism 22, and the gripping assembly and the lifting assembly are added to the transfer device 3 on the basis of the carrying mechanism 22.

Referring to fig. 1, 11 and 12, the second traveling rail 31 is two parallel chains, the second traveling rail 31 is installed at the upper end of the loading frame 4, and the second traveling rail 31 is higher than the first traveling rail 21. The transfer mechanism 32 is installed on the second traveling rail 31, and the transfer mechanism 32 is used for moving the lithium battery tray 5 along the second traveling rail 31 to realize the transfer of the lithium battery tray 5.

Referring to fig. 2, the transfer mechanism 32 includes a second bracket 321, a grabbing component 322 and a second road wheel 323, the grabbing component 322 and the second road wheel 323 are respectively mounted on the second bracket 321, the second road wheel 323 is a chain wheel, the chain wheel is disposed on a chain, and the chain wheel can travel along the chain. The second support 321 spans between the two bar-shaped blocks of the bearing frame 4 through a second road wheel 323, the grabbing component 322 is installed at the lower end of the second support 321, and the grabbing component 322 is used for grabbing the lithium battery tray 5.

Transfer mechanism 32 is last still to be equipped with leading wheel 324, leading wheel 324 installs on second support 321, leading wheel 324 includes two kinds of gyro wheels, two kinds of gyro wheels mutually perpendicular set up, a gyro wheel setting is at the top surface of second guide rail, another kind of gyro wheel setting is in the side of second guide rail, and be equipped with symmetrical leading wheel 324 on two second guide rail, leading wheel 324 can carry on spacingly to the width direction and the upper and lower direction of second guide rail, can guarantee that the sprocket walks along the chain, avoid the sprocket derailment.

In this embodiment, a second walking motor 325 is further installed on the second support 321, the second walking motor 325 is connected with a second walking wheel 323 (chain wheel) through a conveying belt and a roller, the second walking wheel 323 is a driving wheel, and the second walking motor 325 drives the chain wheel to walk along a chain, so that the lithium battery tray 5 is conveyed. The second travel motor 325 may also be coupled to the second travel wheel 323 via a gear set or other transmission.

In other embodiments, the second traveling rail 31 is a rack, and the second traveling wheel 323 is a gear, and the gear and the rack cooperate to form a stable transmission traveling.

In this embodiment, the traveling structure and the traveling track portion of the transfer mechanism 32 are the same as those of the bearing mechanism 22, and the transfer mechanism 32 is also provided with an oil groove, a buffer body, a fixed block, a connecting block and other structures, which are not repeated herein.

In this embodiment, the second support 321 includes a lifting support 3211 and a fixing support 3212, the transfer device 3 further includes a lifting assembly 33, the lifting support 3211 is installed at the lower end of the fixing support 3212 through the lifting assembly 33, and the lifting assembly 33 is used for driving the lifting support 3211 to move up and down relative to the fixing support 3212.

The second walking wheel 323, the guide wheel 324 and the second walking motor 325 are all mounted on the fixing support 3212, the grabbing component 322 is mounted on the lifting support 3211, and the grabbing component 322 and the lifting support 3211 are lifted and lowered relative to the fixing support 3212 together, so that the lithium battery trays 5 located at different stacking heights are grabbed.

In this embodiment, the lifting bracket 3211 is a rectangular frame structure. The four grabbing components 322 are symmetrically arranged at two ends of two short edges of the lifting bracket 3211. The grabbing components 322 are 2 in number, are respectively arranged between two short sides of the lifting support 3211, and can grab the lithium battery tray 5. Four grasping assemblies 322 are the most stable and reasonable number of configurations.

Referring to fig. 13, the grabbing assembly 322 mainly includes an installation seat 3221, a clamping jaw 3222, a first air cylinder 3223, a pushing rod 3224, and a second air cylinder 3225, the installation seat 3221 is an installation plate, the installation seat 3221 is fixed on the lifting bracket 3211 by screws or welding, and the installation seat 3221 and the lifting bracket 3211 may also be an integrated structure.

The mounting seat 3221 is provided with a sliding rail 3226 along the length direction of the lifting support 3211, the upper end of the clamping jaw 3222 is slidably connected to the sliding rail 3226 through a slider, and the clamping jaw 3222 can slide relative to the sliding rail 3226. The slide rail 3226 is arranged to be of a dovetail type or X-shaped structure, and the slide block is provided with a corresponding clamping portion, so that the freedom degree of the clamping jaw 3222 in the up-and-down direction can be limited after the clamping jaw 3222 is connected with the slide rail 3226. The first air cylinder 3223 is installed on the installation seat 3221 along the length direction of the lifting support 3211, the output end of the first air cylinder 3223 is connected to the clamping jaws 3222, the first air cylinder 3223 is used for driving the clamping jaws 3222 to slide, and the four first air cylinders 3223 respectively and simultaneously drive the four clamping jaws 3222 to be relatively close to or far away from each other, so as to realize the grabbing of the lithium battery tray 5.

The second cylinder 3225 is vertically installed on the mounting seat 3221, and the second cylinder 3225 is vertically disposed relative to the lithium battery tray 5. The output end of the second cylinder 3225 passes through the mounting seat 3221 and is connected to the push rod 3224, and the end of the push rod 3224 is configured to abut against the top surface of the lithium battery tray 5. The end of the push rod 3224 is provided with an abutting portion with a larger area, and the push rod 3224 is preferably a spring rod, so that the push rod 3224 can be in soft contact with the top surface of the lithium battery tray 5, and damage to a battery on the lithium battery tray 5 is avoided.

The clamping jaw 3222 includes a first clamping arm and a second clamping arm, the first clamping arm and the second clamping arm form a clamping arm with an L-shaped structure, the upper end of the first clamping arm is connected to the slide rail 3226, and the second clamping arm is perpendicularly connected to the lower end of the first clamping arm. First arm lock is used for the both sides of clamping lithium cell tray 5, and second arm lock and push rod 3224 are used for the upper and lower of clamping lithium cell tray 5, and then the both sides and upper and lower two directions of lithium cell tray 5 can be followed in clamping to clamping jaw 3222 and push rod 3224's cooperation, can avoid rocking of lithium cell tray 5.

Referring to fig. 14, the lifting assembly 33 mainly includes a fixing plate 331, a lifting plate 332, a lifting motor 333, a screw 334 and a guide rod 335, the fixing plate 331 is mounted on the fixing bracket 3212 by screws or welding, the lifting plate 332 is mounted on the lifting bracket 3211 by screws or welding, the fixing plate 331 and the second bracket 3 can be an integrated structure, and the lifting plate 332 and the lifting bracket 3211 can also be an integrated structure.

The lifting motor 333 is installed on the fixing plate 331, the upper end of the screw rod 334 is connected with the lifting motor 333 through a transmission belt or a gear set, the lower end of the screw rod 334 is in threaded connection with the lifting plate 332, a bearing with threads is installed on the lifting plate 332 or a threaded hole is formed in the lifting plate 332, and the lifting motor 333 drives the lifting plate 332 to move up and down through the screw rod 334. The guide rods 335 have four, four guide rods 335 are distributed at four corners of the fixing plate 331 and the lifting plate 332, and the screw rod 334 is connected to the middle portions of the fixing plate 331 and the lifting plate 332. The lower end of the guide rod 335 is fixedly connected with the lifting plate 332, the upper end of the guide rod 335 is slidably connected with the fixing plate 331 through a sleeve, and the guide rod 335 plays a role in guiding, so that the lifting plate 332 can be lifted and moved stably.

The lower pot head of lead screw 334 is equipped with buffering sleeve 336, and buffering sleeve 336 is located the upper surface of lifter plate 332, and buffering sleeve 336 is the elastic plastic material, and the setting of buffering sleeve 336 can avoid the lifter plate 332 to rise the in-process and the collision between fixed plate 331 or the drive structure.

The bumper sleeve 336 is disposed at another position between the fixing plate 331 and the lifting plate 332, such as the bumper sleeve 336 is disposed on the upper surface of the lifting plate 332 or the lower surface of the fixing plate 331. The buffer sleeve 336 can be replaced by other elastic materials or structures, such as a spring, a silica gel column, and other material structures, and can also play a role in elastic buffer.

The lifting assembly 33 is further provided with a connecting plate 337 and a limit switch 338, the connecting plate 337 connects the upper ends of the four guide rods 335 together, so that the lifting plate 332, the guide rods 335 and the connecting plate 337 form a stable lifting structure, and the lifting stability of the lifting plate 332 can be improved. Limit switch 338 includes sense terminal and trigger end, and the sense terminal is installed on fixed plate 331, and the trigger end is installed on connecting plate 337, and when the trigger end goes up and down to move to the position that the sense terminal can detect, will trigger the sense terminal and send detecting signal, according to the shutdown of detecting signal control elevator motor 333 to realize the spacing effect of going up and down.

In the tunnel type lithium battery heating furnace in the embodiment, the cavity 18 of the furnace body 1 is of an integrated long-strip tunnel structure, the conveying device 2 is installed along the long-strip tunnel structure and extends from one end of the cavity 18 to the other end, the long-distance conveying device 2 is arranged in the furnace body 1, the bearing mechanism 22 can transmit the lithium battery tray 5 loaded with the lithium battery to the heating cavity 181 along the first walking track 21, the lithium battery is subjected to heat treatment in the conveying process, the integrated structure is relatively simple in a sectional mode, continuous conveying and heating can avoid power switching blockage, the arrangement of a motor can be reduced, and energy consumption is reduced; in addition, transfer device 3 can realize the used in circulation of lithium cell tray 5, can also realize lithium cell tray 5's buffer memory, has improved lithium cell thermal treatment's efficiency.

The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.

Claims

1. A tunnel type lithium battery heating furnace is characterized by comprising:

2. The heating furnace of claim 1, wherein a buffer chamber and a transfer device are further disposed in the chamber, the buffer chamber is disposed along a length direction of the chamber, the transfer device comprises a second traveling rail and a transfer mechanism, the second traveling rail is laid in the buffer chamber, the transfer mechanism is disposed on the second traveling rail, and the transfer mechanism is configured to transfer the lithium battery tray from an outlet end of the chamber to the carrying mechanism at an inlet end along the second traveling rail.

3. The heating furnace of claim 2, wherein a carriage is disposed in the cavity, the carriage has a double-layer structure, the lower layer of the carriage is the heating chamber, the first traveling rail is fixedly mounted on the lower layer of the carriage, the upper layer of the carriage is the buffer chamber, and the second traveling rail is fixedly mounted on the upper layer of the carriage.

4. The tunnel lithium battery heating furnace of claim 3, wherein the first travel track is located at a lower end of the heating chamber, and the second travel track is located at an upper end of the buffer chamber.

5. The tunnel lithium battery heating furnace of claim 1, wherein the heating chamber is an independent inner chamber, and a heat insulating layer is disposed in the heating chamber.

6. The heating furnace of claim 2, further comprising a loading device and a discharging device, wherein the loading device and the discharging device are respectively located at two ends of the furnace body, the loading device is in butt joint with an inlet end of the cavity, the loading device is used for transferring the lithium batteries to the lithium battery tray, the discharging device is in butt joint with an outlet end of the cavity, and the discharging device is used for transferring the lithium batteries out of the lithium battery tray.

7. The heating furnace of claim 6, wherein two ends of the first traveling rail respectively extend into the feeding device and the discharging device, the carrying mechanism is used for moving into the feeding device to carry a lithium battery tray containing a lithium battery, and the carrying mechanism is also used for moving into the discharging device to unload the lithium battery and the lithium battery tray.

8. The heating furnace of claim 7, wherein two ends of the second traveling rail extend into the loading device and the unloading device, respectively, the transferring mechanism is configured to transfer the lithium battery trays that do not carry lithium batteries from the buffer chamber into the loading device, and the transferring mechanism is further configured to transfer the lithium battery trays that unload lithium batteries from the loading mechanism into the buffer chamber.

9. The heating furnace of claim 2, wherein a first buffer position and a second buffer position for placing the lithium battery tray are arranged in the buffer cavity, the first buffer position is close to the inlet end of the cavity, and the second buffer position is close to the outlet end of the cavity; the transfer mechanism is used for transferring the lithium battery tray from the outlet end of the cavity to the second cache position, displacing the lithium battery tray from the second cache position to the first cache position, and transferring the lithium battery tray from the first cache position to the bearing mechanism at the inlet end of the cavity.

10. The tunnel-type lithium battery heating furnace of claim 9, wherein the transfer mechanism comprises a first transfer mechanism, a second transfer mechanism and a third transfer mechanism, the third transfer mechanism is used for transferring the lithium battery tray from the outlet end of the cavity to the second buffer position, the second transfer mechanism is used for displacing the lithium battery tray from the second buffer position to the first buffer position, and the first transfer mechanism is used for transferring the lithium battery tray from the first buffer position to the bearing mechanism at the inlet end of the cavity.