CN219223261U

CN219223261U - CVD rotary furnace tube structure for lithium battery material

Info

Publication number: CN219223261U
Application number: CN202223451096.2U
Authority: CN
Inventors: 李锐; 李洪伟; 牛晓鹏; 王建勋
Original assignee: Shanxi Beike Qiantong Energy Storage Technology Research Institute Co ltd
Current assignee: Shanxi Beike Qiantong Energy Storage Technology Research Institute Co ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-06-20
Anticipated expiration: 2032-12-23

Abstract

The utility model relates to the technical field of lithium ion batteries, in particular to a CVD rotary furnace tube structure for lithium battery materials, which comprises a furnace tube body, sealing flanges arranged at two ends of the furnace tube body and a vent tube arranged on the sealing flanges, wherein a connecting edge is fixedly arranged on one side of the furnace tube body, a driven wheel is detachably arranged on the connecting edge, the inner diameter of the driven wheel is larger than the outer diameter of the sealing flanges, the furnace tube body is connected with the sealing flanges through a small-diameter section on one side provided with the driven wheel, a lining is detachably arranged on the small-diameter section, and a supporting part extending to between the driven wheel and the furnace tube body is arranged on the lining. According to the utility model, the small-diameter section is arranged between the furnace tube body and the sealing flange, so that the overall size of the sealing flange at the end is smaller, and the size of the driven wheel can be reduced to a certain extent on the premise of ensuring the overall strength of the driven wheel, thereby being beneficial to reducing the space occupied by the whole driving structure and enabling the overall structure to be more compact.

Description

CVD rotary furnace tube structure for lithium battery material

Technical Field

The utility model relates to the technical field of lithium ion batteries, in particular to a CVD rotary furnace tube structure for lithium battery materials.

Background

The rotary tube furnace is widely applied to industries such as powder particles, chemical industry, nano graphene, lithium battery anode and cathode materials and the like, in order to stir powder materials in a furnace tube in the working process of the rotary tube furnace, so that the particles of the powder materials can be fully contacted with process gas, the furnace tube adopts a structure capable of actively rotating, a common driving structure comprises a motor arranged on a furnace body base, a driving wheel arranged on the motor and a driven wheel arranged on the furnace tube, the driving wheel is in power connection with the driven wheel, so that the furnace tube can rotate under the driving of the motor, the driving wheel and the driven wheel can be worn to different degrees in the long-time use process, the driving wheel can be directly detached from the motor for replacement, but the driving wheel is limited by the structure of the furnace tube, the sealing flange at the end part of the furnace tube is required to be detached firstly, the disassembly and the driven wheel can be completed, the operation is more troublesome, and the sealing reliability of the end part of the furnace tube is easy to influence.

To the above-mentioned problem, disclosed in the utility model patent specification of publication No. CN207262948U is a high-temperature rotary tube furnace, which is provided with a wheel disc on the furnace tube, the wheel fluted disc (i.e. the driven wheel) is detachably arranged on the wheel disc, and the inner hole of the wheel fluted disc is larger than the outer diameter of the sealing flange, so that the independent disassembly and assembly of the wheel fluted disc can be realized without disassembling and assembling the sealing flange, but the structure still has certain defects: 1. in the structure, the wheel disc is arranged into two spliced structures, the two spliced structures are connected with the furnace tube by the cohesion realized by the bolts during installation, and the surface of the furnace tube is relatively smooth, so that the structure is easy to cause circumferential slip in the later stage if the cohesion is insufficient, and is easy to cause deformation of the furnace tube if the cohesion is excessive; 2. the inner hole of the wheel fluted disc needs to be larger than the outer diameter of the sealing flange, and the sealing flange has a certain size, so that the outer diameter of the wheel fluted disc needs to be forced to be increased in order to ensure the structural strength of the wheel fluted disc, and the occupied space of the whole driving structure is increased intangibly.

Disclosure of Invention

The utility model aims to avoid the defects in the prior art and provides a CVD rotary furnace tube structure for lithium battery materials, thereby effectively solving the defects in the prior art.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a CVD rotary furnace tube structure for lithium cell material, includes the boiler tube body, sets up in the sealing flange at boiler tube body both ends and installs the breather pipe on sealing flange, the fixed connection edge that is provided with in one side of boiler tube body, the connection is followed the detachable and is provided with from the driving wheel on the edge, and the internal diameter of driving wheel is greater than sealing flange's external diameter, and the boiler tube body is connected through path section and sealing flange on one side of installing from the driving wheel, the detachable is provided with the bush on the path section, is provided with on the bush and extends to follow the supporting part between driving wheel and the boiler tube body.

Further, the sealing flange comprises a flange plate and a flange plate detachably connected with the flange plate through a first bolt, and the vent pipe is arranged on the flange plate.

Further, the connecting edge is welded on the furnace tube body.

Further, the driven wheel is connected with the connecting edge through a second bolt.

Further, the driven wheel is a gear or a chain wheel.

Furthermore, the small diameter section and the furnace tube body are welded and fixed through a transition flange.

Further, the bushing is connected with the transition flange through a third bolt.

Further, a gap is arranged between the supporting part and the connecting edge.

Further, the bushing is formed by combining a plurality of bushing units arranged along the circumferential direction, and the bushing units are not contacted.

Further, a guide surface which is convenient for guiding and installing the driven wheel is arranged on the bushing, and the guide surface extends from the inner side to the outer side of the sealing flange on the vertical projection surface.

The technical scheme of the utility model has the following beneficial effects:

1. according to the utility model, the connecting edge is fixedly arranged on the furnace tube body, and the driven wheel is directly arranged on the connecting edge, so that compared with the traditional structure that the driven wheel is fixed by means of friction force, the reliability of the installation of the driven wheel is greatly improved, no extra burden is caused on the furnace tube body, and the stability of the whole structure is improved;

2. the small-diameter section is arranged between the furnace tube body and the sealing flange, so that the overall size of the sealing flange at the end is smaller, the size of the driven wheel can be reduced to a certain extent on the premise of ensuring the overall strength of the driven wheel, the space occupied by the whole driving structure is reduced, and the overall structure is more compact;

3. the bushing matched with the driven wheel is of a structure capable of being independently disassembled and assembled, and can be independently replaced after later abrasion, so that the furnace tube body is protected, and maintenance cost is reduced.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 2 at C;

FIG. 4 is a side view of a bushing according to an embodiment of the utility model;

fig. 5 is a partial enlarged view at B in fig. 1.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

As shown in fig. 1-5, the CVD rotary furnace tube structure for lithium battery materials according to this embodiment includes a furnace tube body 1, sealing flanges 2 disposed at two ends of the furnace tube body 1, and a ventilation tube 3 mounted on the sealing flanges 2, where the ventilation tube 3 is disposed in communication with the furnace tube body 1, and a connecting edge 4 is fixedly disposed on one side of the furnace tube body 1, and specifically, the connecting edge 4 is welded and fixed on the furnace tube body 1, and the connecting edge 4 is detachably provided with a driven wheel 5, which greatly improves the stability of mounting the driven wheel 5 compared with the conventional structure in which the driven wheel 5 is fixed by simply relying on friction force generated by enclasping, and the connecting edge 4 may be a circumferentially continuous structure or a circumferentially intermittent structure, as long as the driven wheel 5 can provide stable mounting support.

The inner diameter of the driven wheel 5 is larger than the outer diameter of the sealing flange 2, the furnace tube body 1 is connected with the sealing flange 2 through the small diameter section 6 on the side where the driven wheel 5 is installed, in this embodiment, since the small diameter section 6 is arranged on one side, the size of the sealing flange 2 on the side where the small diameter section 6 is arranged is smaller than that of the sealing flange 2 on the other side, it should be understood that the inner diameter of the driven wheel 5 being larger than the outer diameter of the sealing flange 2 means that the inner diameter of the driven wheel 5 is larger than the outer diameter of the smaller sealing flange 2, the small diameter section 6 is detachably provided with the bushing 7, the bushing 7 is in fit with the outer surface of the small diameter section 6, the bushing 7 is provided with the supporting part 701 extending between the driven wheel 5 and the furnace tube body 1, wherein the inner surface of the supporting part 701 is in fit with the outer surface of the furnace tube body 1, and the outer surface of the supporting part 701 is in fit with the inner surface of the driven wheel 5, so as to ensure concentricity between the driven wheel 5 and the furnace tube body 1.

The sealing flange 2 comprises a flange plate 201 and a flange plate 202 which is detachably connected with the flange plate 201 through a first bolt 801, the vent pipe 3 is welded on the flange plate 202, and vent holes are formed in the flange plate 202 corresponding to the vent pipe 3, so that connectivity between the vent pipe 3 and the interior of the furnace tube body 1 is guaranteed, and the flange plate 201 is welded and fixed with the furnace tube body 1 or the small-diameter section 6.

The driven wheel 5 is connected with the connecting edge 4 through a second bolt 802, the second bolt 802 is arranged along the axial direction of the furnace tube body 1, and mounting holes are formed in the driven wheel 5 and the connecting edge 4 in cooperation with the second bolt 802.

The driven wheel 5 is a gear or a sprocket.

The welding fixation is realized between the small diameter section 6 and the furnace tube body 1 through the transition flange 9, wherein the outer diameter of the transition flange 9 is equal to the outer diameter of the furnace tube body 1, the inner diameter of the transition flange 9 is equal to the inner diameter of the small diameter section 6, and the connection position is fixed in a welding mode.

The bushing 7 is connected with the transition flange 9 through a third bolt 803, wherein a mounting counter bore is formed in the bushing 7 in cooperation with the third bolt 803, and a threaded hole is formed in the transition flange 9 in cooperation with the third bolt 803.

The supporting part 701 and the connecting edge 4 are provided with a gap, and through the structure, the lining 7 can be attached to the transition flange 9 in the installation process, so that the stability of structural installation is improved.

The bushing 7 is formed by combining a plurality of bushing units 703 arranged along the circumferential direction, and the bushing units 703 are not in contact with each other, as shown in fig. 4, in this embodiment, the bushing units 703 are two, and since the bushing 7 is mounted on the small-diameter section 6, the inner diameter of the bushing is smaller than the outer diameter of the sealing flange 2, the bushing 7 is arranged into an assembled structure, so that the assembly and disassembly of the bushing are convenient to realize, and the rationality of the structure is ensured.

Be provided with the guide surface 702 of being convenient for realize leading-in installation of driving wheel 5 on the bush 7, the guide piece 702 is annular domatic, on vertical projection face, and guide surface 702 extends to the outside by sealing flange 2's inboard, this can be so that the in-process of installing from driving wheel 5 realizes quick alignment effect, the reduction assembly degree of difficulty that can be great does benefit to improvement work efficiency.

In addition, as shown in fig. 3, a chamfer structure can be arranged on the inner side of the driven wheel 5, so that the assembly efficiency of the driven wheel 5 is improved, and a yielding structure can be arranged at the position of the bushing 7 corresponding to the welding position of the transition flange 9 and the small-diameter section 6, so that adverse influence of a convex welding seam between the transition flange 9 and the small-diameter section 6 on the assembly of the bushing 7 is avoided, and the improvement of the compactness of the structure is facilitated.

According to the utility model, when the driven wheel 5 is replaced, the second bolt 802 is directly detached, because the inner diameter of the driven wheel 5 is larger than the outer diameter of the sealing flange 2 at the side, the driven wheel 5 can be directly detached through the sealing flange 2 without using any other structure, and in the same way, the driven wheel 5 can be directly installed, and the driven wheel 5 can be well guided by the bushing 7 in the installation process, so that the centering difficulty of the driven wheel 5 is greatly reduced, the working efficiency is improved, and the bushing 7 adopts a detachable structure, and can be independently replaced, so that the service life of the whole furnace tube body 1 is prolonged.

The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a CVD rotary furnace boiler tube structure for lithium cell material, includes the boiler tube body, sets up in the sealing flange at boiler tube body both ends and installs the breather pipe on sealing flange, its characterized in that: the furnace tube comprises a furnace tube body, and is characterized in that a connecting edge is fixedly arranged on one side of the furnace tube body, a driven wheel is detachably arranged on the connecting edge, the inner diameter of the driven wheel is larger than the outer diameter of a sealing flange, the furnace tube body is connected with the sealing flange through a small diameter section on one side provided with the driven wheel, a bushing is detachably arranged on the small diameter section, and a supporting part extending to between the driven wheel and the furnace tube body is arranged on the bushing.

2. A CVD rotary furnace tube structure for lithium battery material according to claim 1, wherein: the sealing flange comprises a flange plate and a flange plate detachably connected with the flange plate through a first bolt, and the vent pipe is arranged on the flange plate.

3. A CVD rotary furnace tube structure for lithium battery material according to claim 1, wherein: the connecting edge is welded on the furnace tube body.

4. A CVD rotary furnace tube structure for lithium battery material according to claim 1, wherein: the driven wheel is connected with the connecting edge through a second bolt.

5. A CVD rotary furnace tube structure for lithium battery material according to claim 1, wherein: the driven wheel is a gear or a chain wheel.

6. A CVD rotary furnace tube structure for lithium battery material according to claim 1, wherein: and the small diameter section and the furnace tube body are welded and fixed through a transition flange.

7. A CVD rotary furnace tube structure for lithium battery material according to claim 6, wherein: the bushing is connected with the transition flange through a third bolt.

8. A CVD rotary furnace tube structure for lithium battery material according to claim 1, wherein: a gap is arranged between the supporting part and the connecting edge.

9. A CVD rotary furnace tube structure for lithium battery material according to claim 1, wherein: the bushing is formed by combining a plurality of bushing units arranged along the circumferential direction, and the bushing units are not contacted.

10. A CVD rotary furnace tube structure for lithium battery material according to claim 1, wherein: the bushing is provided with a guide surface which is convenient for guiding and installing the driven wheel, and the guide surface extends from the inner side to the outer side of the sealing flange on the vertical projection surface.