A flexible gas displacement chamber seal door

Abstract

The present application relates to lithium battery material sintering field, specifically to a kind of flexible gas replacement chamber sealing door, gate is arranged in the gap between the gate of gas replacement chamber and the gate of gas replacement chamber front, gas replacement chamber is arranged with respectively located in the upper and lower ends of gate driving wheel and tension pulley, driving wheel and tension pulley are respectively connected and fixed with gate by first belt and second belt, the diameter of driving wheel is greater than the diameter of tension pulley;Driving source drives driving wheel and tension pulley to rotate at the same speed, and the state of driving wheel and tension pulley to belt is opposite, when belt is retracted, gate is driven to produce vertical lifting action;The pressure assembly for pressing gate to the gate of gas replacement chamber is further fixed outside the gas replacement chamber.The present application does not need lifting guide rod, and lifting control of gate can be realized by single motor, the length of lifting assembly can be greatly shortened, long-stroke lifting of gate can be realized, and the structure is simple and convenient to maintain.

Description

Technical Field

[0001] This invention relates to the field of lithium battery material sintering, specifically a flexible gas replacement chamber sealing door. Background Technology

[0002] Roller furnaces are widely used in the sintering production of lithium battery materials due to their advantages such as automation, continuous operation, and good temperature uniformity. The sintering of lithium battery materials not only requires specific sintering temperatures within the furnace chamber but also necessitates ensuring airtightness during the sintering process. Gas replacement chambers are installed at both ends of the roller furnace chamber. Multiple gates open and close in a specific sequence to ensure that the atmosphere within the furnace chamber is not affected by the feeding of the saggers. The gate height of the gas replacement chamber has two states: high and low. In the high position, the saggers can pass through the gate opening of the gas replacement chamber. Subsequently, the gate descends, and the sealing gasket of the gate compresses against the gate opening to ensure the airtightness of the chamber. The gate lifting and lowering, in conjunction with the transmission system, completes the feeding operation.

[0003] Traditional sealing gates consist of a lifting mechanism, a gate, a clamping structure, and a lifting guide rod. One end of the lifting guide rod is connected to the gate via a hinge, and the other end is connected to the lifting mechanism. The lifting mechanism drives the gate's rise and fall via the guide rod, and the guide rod's length is typically about three times the gate's lifting height. The actuator of the lifting assembly usually comes in two forms: a cylinder or a motor with a rack and pinion mechanism. Both of these forms require high precision in the machining and installation of the lifting guide rod. Furthermore, due to the structural characteristics of the gate's lifting mechanism, as the lifting height increases, the length of the guide rod and the overall height of the displacement chamber also increase exponentially. When the lifting height is 500mm, the lifting guide rod is 1500mm long, and the overall height of the displacement chamber is approximately 3500mm; when the lifting height is 1000mm, the lifting guide rod is about 3000mm long, and the overall height of the displacement chamber is approximately 5500mm. This not only increases the difficulty of machining the guide rod but also increases the difficulty of installation, maintenance, and transportation. In addition, since the lifting guide rod is connected to the gate by a hinge, the gate is in a free state during the lifting process. Affected by the lifting inertia, the gate will swing around the hinge, which will generate friction with the gate opening. This not only accelerates the damage of the sealing gasket, but also the friction may generate some metal foreign objects, causing the gate to jam. Therefore, this problem urgently needs to be solved. Summary of the Invention

[0004] To avoid and overcome the technical problems existing in the prior art, the present invention provides a flexible gas replacement chamber sealing door. The present invention eliminates the need for a lifting guide rod, achieving gate lifting control with a single motor. This significantly shortens the length of the lifting assembly while enabling long-stroke lifting of the gate, resulting in a simple structure and convenient maintenance.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A flexible gas replacement chamber sealing door has a gate positioned in front of the gas replacement chamber's opening with a gap between it and the opening. The gas replacement chamber has a drive wheel and a tension wheel located at the upper and lower ends of the gate, respectively. The drive wheel and tension wheel are connected and fixed to the gate via a first belt and a second belt, respectively. The diameter of the drive wheel is larger than that of the tension wheel. A drive source drives the drive wheel and tension wheel to rotate at the same speed, and the drive wheel and tension wheel have opposite belt-releasing states. When the belts are retracted or extended, they cause the gate to move vertically up and down. A pressing assembly is also fixed outside the gas replacement chamber to press the gate against the gas replacement chamber's opening.

[0007] As a further aspect of the present invention: the clamping assembly includes a mounting plate that is fixedly connected to the gas replacement chamber. The mounting plate, the first connecting rod, the clamping rod, and the second connecting rod are sequentially hinged to form a parallel four-bar linkage. A clamping part that drives the first connecting rod and the second connecting rod to rotate is mounted on the mounting plate. When the first connecting rod and the second connecting rod rotate, they drive the clamping rod to perform a clamping action on the gate.

[0008] As a further embodiment of the present invention: the pressing part is a pressing cylinder fixed on the mounting plate and hinged to the mounting plate. A transmission shaft is coaxially fixed at the hinge point of the first or second connecting rod and the mounting plate. The transmission shaft passes through the mounting plate and is connected and fixed to one end of the V-shaped transmission block. The other end of the transmission block is hinged to the driving end of the pressing cylinder. The hinge axes of the transmission block and the pressing cylinder are parallel to the hinge axes of the mounting plate.

[0009] As a further embodiment of the present invention: a U-shaped guide rail is arranged on the gate along the vertical direction, a clamping rod is arranged along the length direction of the guide rail, and guide pulleys inserted into the guide rail are evenly arranged on the clamping rod along the length direction, and each guide pulley is in rolling cooperation with the guide rail.

[0010] As a further aspect of the present invention, the width of each guide pulley corresponds to the width of the guide rail.

[0011] As a further embodiment of the present invention: the clamping components are arranged on both sides of the gate of the gas replacement chamber.

[0012] As a further embodiment of the present invention: the driving wheel and the tensioning wheel rotate at the same speed after being driven by the transmission assembly. The transmission assembly includes a driving shaft fixed coaxially with the driving wheel and a driven shaft fixed coaxially with the tensioning wheel. Guide wheels are fixed coaxially on both the driving shaft and the driven shaft. Each guide wheel is connected to the other by a transmission belt to form a belt drive. A drive motor is installed on the gas replacement chamber, and the driving shaft is fixed coaxially with the motor shaft of the drive motor.

[0013] As a further embodiment of the present invention: two sets of driving wheels are coaxially fixed on the driving shaft, the two driving wheels are respectively located on both sides of the gate, and each of the two driving wheels is connected and fixed to the top of the gate through a set of first belts; two sets of tensioning wheels are coaxially fixed on the driven shaft, the two tensioning wheels are respectively located on both sides of the gate and correspond to the upper and lower positions of the two driving wheels, and each of the two tensioning wheels is connected and fixed to the bottom of the gate through a set of second belts.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This invention uses two sets of belts to pull and fix the gate. The tensioning wheel and the drive wheel rotate at the same speed to release and wind up the belts. When the gate needs to be closed, the drive wheel releases the first belt, and the tensioning wheel winds up the second belt. At this time, due to the diameter difference between the drive wheel and the tensioning wheel, the release amount of the first belt is greater than the winding amount of the second belt, and the second belt remains in a slack state. At this time, there is still a certain gap between the gate and the gate opening of the gas replacement chamber. After the gate is pressed onto the gate opening by the pressing component, the second belt and the first belt change from a vertical state to an inclined state. During the pressing process, the slack of the second belt is consumed. At this time, the first belt and the second belt are exactly in a naturally extended state. The belts will not be over-tightened and damaged during the pressing process. The entire pressing process only requires a single motor to realize the raising and lowering of the gate, avoiding the problem of asynchronous raising and lowering caused by different motors. At the same time, while greatly shortening the length of the lifting component, long-stroke raising and lowering of the gate can be achieved. The structure is simple and easy to maintain.

[0016] 2. The clamping assembly of the present invention forms a parallel four-bar structure through the mounting plate, clamping rod, first connecting rod and second connecting rod. When the clamping cylinder extends, it drives the transmission block to rotate around the fixed point with the transmission shaft as the base point. When the transmission block rotates, it drives the first connecting rod and the second connecting rod to rotate synchronously. At this time, the clamping rod swings synchronously, thereby applying clamping force to the gate through the guide rail, causing the gate to move towards the gate opening, thereby clamping the gate opening to achieve sealing.

[0017] 3. The clamping rod of the present invention is fixed with several sets of guide pulleys, which can roll and cooperate with the guide pulleys during the lifting and lowering of the gate, thereby playing the function of lifting and lowering guidance and avoiding the gate from shaking during lifting and lowering; the clamping assembly is arranged in two sets, which can realize bidirectional clamping and fixing of the gate.

[0018] 4. This invention uses the belt drive of the transmission belt and the guide wheel to transmit the power of the motor to the drive wheel and the tension wheel simultaneously, ensuring that the drive wheel and the tension wheel rotate synchronously at the same angular velocity, thus ensuring stable transmission. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2This is a schematic diagram of the clamping assembly in this invention.

[0021] In the picture:

[0022] 1. Gate; 11. Guide rail;

[0023] 2. Drive pulley; 21. First belt; 22. Drive shaft;

[0024] 3. Tensioner pulley; 31. Second belt; 32. Driven shaft;

[0025] 41. Guide wheel; 42. Drive belt; 43. Drive motor;

[0026] 5. Clamping assembly; 51. Clamping rod; 511. Guide pulley;

[0027] 52. First connecting rod; 53. Mounting plate; 54. Second connecting rod;

[0028] 55. Clamping cylinder; 56. Transmission block; 57. Transmission shaft. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-2 In this embodiment of the invention, a flexible gas replacement chamber sealing door is provided. Multiple sets of guide wheels 41 are fixed on the side of the gate of the gas replacement chamber. Each set of guide wheels 41 has at least two sets, and their arrangement position is adapted to the external shape of the gas replacement chamber.

[0031] Two drive wheels 2 are arranged on both sides above the gate of the gas replacement chamber. The two drive wheels 2 and one set of guide wheels 41 are coaxially fixed on the drive shaft 22. A drive motor 43 for driving the rotation of the drive shaft 22 is installed above the gas replacement chamber. The drive shaft 22 and the motor shaft of the drive motor 43 are coaxially fixed. A first belt 21 is wound on each of the two drive wheels 2 and is connected and fixed to the top of the gate 1 through the first belt 21.

[0032] Tensioning rollers 3 are arranged on both sides below the gate of the gas replacement chamber. The two tensioning rollers 3 and one set of guide rollers 41 are coaxially fixed on the driven shaft 32. A second belt 31 is wound onto each of the two tensioning rollers 3, and the belts 31 connect and fix the rollers to the bottom of the gate 1. A belt drive is formed between the guide rollers 41 via a transmission belt 42. After the drive motor 43 starts, the belt drive between the guide rollers 41 drives the driving roller 2 and the tensioning rollers 3 to rotate at the same angular velocity. The diameter of the driving roller 2 is larger than the diameter of the tensioning roller 3. When the gate 1 needs to be closed, the driving roller 2 releases the first belt 21, and the tensioning roller 3 winds up the second belt 31. At this time, the release amount of the first belt 21 is greater than the winding amount of the second belt 31, and the second belt 31 remains in a slack state. At this point, there is still a certain gap between the gate 1 and the gate of the gas replacement chamber. After the gate 1 is pressed onto the gate opening by the pressing component 5, the second belt 31 and the first belt 21 change from a vertical state to an inclined state; during the pressing process, the slack of the second belt 31 is consumed, and at this time the first belt 21 and the second belt 31 are exactly in a naturally extended state.

[0033] Two sets of clamping assemblies 5 are arranged, located on both sides of the gate of the gas replacement chamber. The clamping assembly 5 includes a mounting plate 53 that is fixed to the gas replacement chamber. The mounting plate 53, the first connecting rod 52, the clamping rod 51, and the second connecting rod 54 are hinged in sequence to form a parallel four-bar linkage structure. The axes of each hinge are parallel to the surface of the gate 1. The mounting plate 53 serves as a fixed plate. When the first connecting rod 52 and the second connecting rod 54 rotate synchronously, they drive the clamping rod 51 to swing.

[0034] Guide rails 11 are provided on both sides of the gate 1 along the vertical direction. Two clamping rods 51 are arranged parallel to the guide rails 11. Several sets of guide pulleys 511 are installed on one side of the clamping rod 51 adjacent to the guide rail 11 along the length of the clamping rod 51. Each guide pulley 511 is inserted into the U-shaped track of the guide rail 11 and rolls with the guide rail 11. The guide pulleys 511 preferably correspond to the track width of the guide rail 11. When the gate 1 is raised or lowered, each guide pulley 511 rolls in the guide rail 11.

[0035] A clamping cylinder 55, positioned to avoid the gate 1, is mounted on the mounting plate 53. The clamping cylinder 55 is hinged to the mounting plate 53, and its drive end is hinged to one end of a V-shaped transmission block 56. A transmission shaft 57 is coaxially fixed to the hinge shaft of the first connecting rod 52 and the mounting plate 53, and the transmission shaft 57 is connected and fixed to the other end of the V-shaped transmission block 56. When the clamping cylinder 55 extends, it drives the transmission block 56 to rotate around the fixed point with the transmission shaft 57. When the transmission block 56 rotates, it drives the first connecting rod 52 and the second connecting rod 54 to rotate synchronously. At this time, the clamping rod 51 swings synchronously, thereby applying a clamping force to the gate 1 through the guide rail 11, causing the gate 1 to move towards the gate opening, thus clamping the gate opening to achieve a seal.

[0036] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0037] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

Claims

1. A flexible gas replacement chamber sealing door, characterized in that, A gate (1) is arranged in front of the gate of the gas replacement chamber and there is a gap between the gate and the gate of the gas replacement chamber. A drive wheel (2) and a tension wheel (3) are arranged on the gas replacement chamber at the upper and lower ends of the gate (1), respectively. The drive wheel (2) and the tension wheel (3) are connected and fixed to the gate (1) through a first belt (21) and a second belt (31), respectively. The diameter of the drive wheel (2) is larger than the diameter of the tension wheel (3). The drive source drives the drive wheel (2) and the tension wheel (3) to rotate at the same speed. The drive wheel (2) and the tension wheel (3) have opposite states of belt winding and unwinding. When the belt is winding and unwinding, it drives the gate (1) to produce a vertical lifting and lowering action. A pressing assembly (5) for pressing the gate (1) to the gate of the gas replacement chamber is also fixed outside the gas replacement chamber. The clamping assembly (5) includes a mounting plate (53) that is fixed to the gas replacement chamber. The mounting plate (53), the first connecting rod (52), the clamping rod (51) and the second connecting rod (54) are hinged in sequence to form a parallel four-bar structure. The mounting plate (53) is equipped with a clamping part that drives the first connecting rod (52) and the second connecting rod (54) to rotate. When the first connecting rod (52) and the second connecting rod (54) rotate, they drive the clamping rod (51) to clamp the gate (1). The pressing part is a pressing cylinder (55) fixed on the mounting plate (53) and hinged to the mounting plate (53). A transmission shaft (57) is fixed coaxially at the hinge point of the first connecting rod (52) or the second connecting rod (54) with the mounting plate (53). The transmission shaft (57) passes through the mounting plate (53) and is connected and fixed to one end of the V-shaped transmission block (56). The other end of the transmission block (56) is hinged to the driving end of the pressing cylinder (55). The hinge axes of the transmission block (56) and the pressing cylinder (55) are parallel to each other with the hinge axes of the mounting plate (53). The gate (1) is provided with a U-shaped guide rail (11) arranged in the vertical direction. The pressing rod (51) is arranged along the length of the guide rail (11), and the pressing rod (51) is provided with guide pulleys (511) inserted into the guide rail (11) evenly arranged along the length of the guide rail (11). Each guide pulley (511) is in rolling cooperation with the guide rail (11). The drive wheel (2) and the tension wheel (3) rotate at the same speed after being driven by the transmission assembly. The transmission assembly includes a drive shaft (22) fixed coaxially with the drive wheel (2) and a driven shaft (32) fixed coaxially with the tension wheel (3). Guide wheels (41) are fixed coaxially on both the drive shaft (22) and the driven shaft (32). Each guide wheel (41) is connected to the other by a transmission belt (42). A drive motor (43) is installed on the gas replacement chamber, and the drive shaft (22) and the motor shaft of the drive motor (43) are fixed coaxially. Two sets of drive wheels (2) are coaxially fixed on the drive shaft (22). The two drive wheels (2) are located on both sides of the gate (1). Each of the two drive wheels (2) is connected and fixed to the top of the gate (1) through a set of first belts (21). Two sets of tension wheels (3) are coaxially fixed on the driven shaft (32). The two tension wheels (3) are located on both sides of the gate (1) and correspond to the upper and lower positions of the two drive wheels (2). Each of the two tension wheels (3) is connected and fixed to the bottom of the gate (1) through a set of second belts (31).

2. The flexible gas replacement chamber sealing door according to claim 1, characterized in that, The width of each guide pulley (511) corresponds to the width of the guide rail (11).

3. A flexible gas replacement chamber sealing door according to claim 1 or 2, characterized in that, The clamping assembly (5) is arranged on both sides of the gate of the gas replacement chamber.

Images