Kiln outer rail turning device

Abstract

The utility model provides an outer track turning device of a kiln, which relates to the technical field of guide wheel turning automation and comprises an outer side transmission chamber outer bulkhead, an outer side transmission chamber inner bulkhead, an inner side transmission chamber inner bulkhead and an inner side transmission chamber outer bulkhead, and a transmission chain, a transmission gear and a bolt are arranged between the outer side transmission chamber outer bulkhead and the outer side transmission chamber inner bulkhead. Connecting rods are connected between the outer side transmission chamber inner cabin wall and the inner side transmission chamber outer cabin wall, outer side guide wheels and inner side guide wheels are arranged at the two ends of each connecting rod respectively, the ends of the connecting rods are connected with transmission gears through the inner side guide wheels, transmission chains are arranged on the surfaces of the adjacent transmission gears in a meshed mode, and the outer side guide wheels and the inner side guide wheels are the same in size on the whole straight track. The diameter of the outer guide wheel is larger than that of the inner guide wheel during track turning, the diameter of the outer guide wheel is equal during straight movement, the diameter of the outer guide wheel is larger during turning, a reliable scheme is provided for kiln sintering through guide wheel linear velocity difference and efficient transmission design, and maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a guide wheel turning automation technical field especially relates to a kiln outer track turning device. BACKGROUND

[0002] In the production of ternary positive electrode material, high-temperature sintering is a key process, and devices such as roller kiln are commonly used. In order to improve production capacity, kiln design tends to be longer and have more rows (such as double-layer six-row roller kiln), but the load of shared components increases, resulting in a significant increase in failure rate. The traditional turning part uses a lifting cylinder to transfer the sagger from one plane to another, and then rotates the guide wheel driven by a driving motor to achieve turning. Taking a double-layer six-row roller kiln as an example, 12 saggars in a row require 12 cycles of repeated work by the lifting cylinder, which frequently fails and has a high risk of wear and tear, requiring frequent maintenance downtime for the production line. Therefore, it is necessary to develop a device that can complete the turning in the same plane. SUMMARY

[0003] The utility model aims at solving the problems of high failure rate of lifting cylinder and high maintenance cost in the traditional turning design in the prior art, and provides a kiln outer track turning device.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a kiln outer track turning device, comprising an outer side transmission chamber outer cabin wall, an outer side transmission chamber inner cabin wall, an inner side transmission chamber inner cabin wall and an inner side transmission chamber outer cabin wall, a transmission chain, a transmission gear and a bolt are arranged between the outer side transmission chamber outer cabin wall and the outer side transmission chamber inner cabin wall, a connecting rod is arranged between the outer side transmission chamber inner cabin wall and the inner side transmission chamber outer cabin wall, an outer side guide wheel and an inner side guide wheel are arranged at both ends of the connecting rod, the connecting rod is connected with the transmission gear through the inner side guide wheel, a transmission chain is arranged on the surface of adjacent transmission gears in meshing mode, and every three transmission gears form a group connected with the transmission chain, the track where the outer side transmission type outer cabin wall is located is composed of two straight tracks and a turning track, the outer side guide wheel and the inner side guide wheel are of the same size on the entire straight track, and the diameter of the outer side guide wheel is larger than that of the inner side guide wheel in the turning track.

[0005] Preferably, the outer side transmission chamber outer cabin wall and the outer side transmission chamber inner cabin wall form a closed space, and the closed space is an outer side transmission chamber, and the inner side transmission chamber inner cabin wall and the inner side transmission chamber outer cabin wall form an inner side transmission chamber.

[0006] Preferably, the transmission chain, the transmission gear and the bolt cooperate with the outer side guide wheel, the inner side guide wheel and the connecting rod to form a complete transmission system, and the transmission system is located inside the inner side transmission chamber or the outer side transmission chamber.

[0007] Preferably, the three transmission gears are connected with the transmission chain in normal operation, and the transmission chain is connected with one or two transmission gears if the number of transmission gears is not an integer multiple of 3, and the connecting rods at the end of the straight track or the turning part are combined as a whole.

[0008] Preferably, the diameters of the transmission gears are equal, and the first gear in each group of transmission gears is connected with the motor as a power input point through the transmission chain.

[0009] Preferably, the connecting rod is mounted between the outer side transmission chamber bulkhead and the inner side transmission chamber bulkhead through the bolt, and the connecting rod is movably connected with the bolt.

[0010] Preferably, the outer side guide wheel and the inner side guide wheel are cut and polished into shape from two or more composite materials of magnesium oxide-mullite-cordierite, and the turning angle of the turning track is 1 / 4 circle, semicircle or any arc.

[0011] Beneficial effects

[0012] In the utility model, the closed structure of the outer side and inner side transmission chambers is adopted to realize protection and flexible installation of the transmission system, achieve the effect of reducing external interference and prolonging service life. The meshing structure of the transmission chain and each group of three transmission gears is adopted to realize efficient power transmission and synchronous driving, achieve the effect of stable operation and uniform power. The structure of the connecting rod with the outer side guide wheel and the inner side guide wheel mounted at both ends is adopted, the diameters are equal in straight running and the diameter of the outer side guide wheel is larger in turning, the function of turning in the plane with different linear velocities is realized, and the effects of not needing lifting cylinders and reducing failure rate are achieved. The bolt is movably connected with the connecting rod and the bulkhead to realize free rotation of the connecting rod, and the effects of flexible movement and accurate operation are achieved. The guide wheel structure is made of magnesium oxide-mullite-cordierite composite material to realize high temperature durability, achieve the effects of corrosion resistance and adaptation to harsh working conditions, the adjustable turning angle and guide wheel diameter design is adopted to realize the adaptation of process requirements, and the effects of strong universality and wide application are achieved. The whole is designed through guide wheel linear velocity difference and efficient transmission, solves the complexity and high failure problem of traditional turning devices, improves the automation level and production efficiency, provides a reliable scheme for kiln sintering, and reduces maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is a straight line guide rail installation structure diagram of the utility model;

[0015] Figure 3 It is a connecting rod connection structure diagram of the utility model;

[0016] Figure 4The utility model discloses a transmission gear connecting structure.

[0017] Legend:

[0018] 1, the outer drive chamber outer bulkhead; 2, the outer drive chamber inner bulkhead; 3, transmission chain; 4, transmission gear; 5, connecting rod; 6, bolt; 7, inner guide wheel; 8, outer guide wheel; 9, inner drive chamber inner bulkhead; 10, inner drive chamber outer bulkhead. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, achieve purposes and effects of the utility model easy to understand, the following will be further described in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor all belong to the protection scope of the utility model.

[0020] The specific embodiments of the utility model are described below in conjunction with the drawings. Specific embodiment one:

[0022] Reference Figures 1 to 4 A kiln outer track turning device, including outer drive chamber outer bulkhead 1, outer drive chamber inner bulkhead 2, inner drive chamber inner bulkhead 9 and inner drive chamber outer bulkhead 10, be equipped with transmission chain 3, transmission gear 4 and bolt 6 between outer drive chamber outer bulkhead 1 and outer drive chamber inner bulkhead 2, be equipped with connecting rod 5 between outer drive chamber inner bulkhead 2 and inner drive chamber outer bulkhead 10, connecting rod 5 both ends are equipped with outer guide wheel 8 and inner guide wheel 7 respectively, and connecting rod 5 end is connected with transmission gear 4 through inner guide wheel 7, and transmission chain 3 is equipped with on the surface of adjacent transmission gear 4 and engages, and every three transmission gears 4 is a group and is connected with transmission chain 3, and the track where outer drive type outer bulkhead is located is composed of two straight tracks and a turning track, and the diameter of outer guide wheel 8 is greater than the diameter of inner guide wheel 7 when outer guide wheel 8 and inner guide wheel 7 are same in size on the whole straight track, and outer drive chamber outer bulkhead 1 and outer drive chamber inner bulkhead 2 constitute the frame of outer drive chamber, provide the fixed and protective space of transmission system, and inner drive chamber inner bulkhead 9 and inner drive chamber outer bulkhead 10: constitute the frame of inner drive chamber, as the alternative fixed area of transmission system, transmission chain 3 transmits the power of driving motor to transmission gear 4, connects multiple gears to form power transmission chain, transmission gear 4 receives the power transmission of chain, drives connecting rod 5 to rotate, is the core component of power transmission, bolt 6 fixes connecting rod 5 with transmission chamber bulkhead, ensures the structural stability and the flexibility of movement, connecting rod 5 connects transmission gear 4 with guide wheel, transmits rotary power and supports guide wheel operation, and outer guide wheel 8 and inner guide wheel 7: carry the sagger and push it along the track and turn at the turning place through the diameter difference.

[0023] The transmission chain 3 transmits the rotating power of the driving motor to the transmission gear 4, every three gears work together, the transmission gear 4 drives the outer guide wheel 8 and the inner guide wheel 7 through the connecting rod 5, the end of the connecting rod 5 is directly connected with the inner guide wheel 7 gear, ensuring smooth power transmission, on the straight track, the outer guide wheel 8 and the inner guide wheel 7 have equal diameters and consistent rotating speeds, pushing the sagger to move linearly; on the turning track, the outer guide wheel 8 has a larger diameter than the inner guide wheel 7, and at the same rotating speed, the linear speed of the outer guide wheel 8 is higher than that of the inner guide wheel 7, and the turning movement of the sagger is realized by using the linear speed difference.

[0024] In the straight running stage, the motor drives the chain, the chain drives the gear set, and the guide wheels on the connecting rod 5 rotate at the same speed, and the sagger moves stably along the straight track; when entering the turning track, the outer guide wheel 8 has a larger diameter and a higher linear speed than the inner guide wheel 7, resulting in a longer outer path than the inner path, and the sagger naturally turns along the arc track; each group of three gears is connected by a chain to ensure uniform power distribution, and multiple connecting rods 5 and guide wheels work together to complete the entire track operation; without the need for lifting cylinders, turning can be realized, the structure is simplified, and the failure rate is reduced; the chain and gear set cooperate with the connecting rod 5 to ensure stable power transmission and improve operation efficiency; the track design of two straight sections + one turning section is suitable for various kiln layouts, and the diameter difference of the guide wheels realizes precise turning

[0025] The outer cabin wall 1 of the outer transmission chamber and the inner cabin wall 2 of the outer transmission chamber form a closed space, and the closed space is the outer transmission chamber, and the inner cabin wall 9 of the inner transmission chamber and the outer cabin wall 10 of the inner transmission chamber form an inner transmission chamber, the outer transmission chamber and the inner transmission chamber are independent closed units, respectively constructed by the cabin wall, and internally accommodate transmission chain 3, gears and other components, ensuring their stable operation in high temperature environment, according to the track design and space requirement, the transmission system can be selected to be installed in the outer or inner transmission chamber, the cabin wall provides structural support and protection, when the transmission system is located in the outer transmission chamber, the outer cabin wall isolates the external environment and protects the internal components, if the process requires, the transmission system can be moved to the inner transmission chamber, the inner cabin wall also provides protection and support, the closed design reduces the entry of dust, ensuring the long-term reliability of the transmission components

[0026] The transmission chain 3, the transmission gear 4 and the bolt 6 cooperate with the outer guide wheel 8, the inner guide wheel 7 and the connecting rod 5 to form the entire transmission system, and the transmission system is located inside the inner transmission chamber or the outer transmission chamber. The transmission chain 3, the transmission gear 4 and the bolt 6 are power transmission and fixing components, which ensure the overall coordinated operation of the system. The outer guide wheel 8, the inner guide wheel 7 and the connecting rod 5 are execution components, which are responsible for the movement and turning of the sagger. The transmission system integrates all components to form a complete power transmission and motion execution system. The transmission chain 3 transmits the motor power to the gear, the gear drives the guide wheel to rotate through the connecting rod 5, the bolt 6 fixes the connecting rod 5 and the cabin wall to ensure the stability of the motion, and the outer guide wheel 8 and the inner guide wheel 7 adjust the running state according to the straight or turning of the track. The entire system is protected and runs in the transmission chamber.

[0027] The motor drives the gear through the chain, the gear drives the connecting rod 5 to rotate, and the guide wheel on the connecting rod 5 performs straight or turning action according to the diameter difference. The transmission system can be installed in the corresponding transmission chamber according to the requirements of the inner and outer tracks to ensure smooth operation, cooperative work of components, formation of an efficient transmission system, improvement of overall performance, placement in the chamber to avoid external interference, enhancement of durability, ease of assembly and adjustment, and suitability for different kiln scales

[0028] The three transmission gears 4 are connected with the transmission chain 3 during normal operation. If the number of transmission gears 4 is not a multiple of 3, the transmission chain 3 is connected with one or two transmission gears 4, and the connecting rods 5 at the end of the straight track or the turning part are combined as a whole. During normal operation, the chain is engaged with each set of three gears to ensure uniform distribution of power to multiple connecting rods 5 and guide wheels. When the number of gears is not a multiple of 3, such as less than 3 at the end, the chain can adjust to connect 1 or 2 gears, integrate the remaining connecting rods 5 as a whole, and maintain the continuity of power transmission. Each set of three gears is driven by the chain to ensure the synchronization of the entire track. At the end of the track or the turning part, the chain flexibly connects a small number of gears to ensure that the connecting rods 5 without three gears can still operate. The end connecting rod 5 is combined and operated to avoid power interruption. The chain adapts to different numbers of gears to improve the compatibility of the device. The end integration design ensures that there is no power blind area on the entire track, the power is evenly distributed, and the running jitter is reduced.

[0029] The diameters of the transmission gears 4 are equal, the first gear in each group of transmission gears 4 is connected with the motor as a power input point through the transmission chain 3, the motor drives the first gear in each group through the chain, the gears rotate at the same speed due to the equal diameters, and the power is sequentially transmitted to the other gears in the group and the connecting rod 5, the first gear as the input point ensures efficient power distribution from the source; the connecting rod 5 is installed between the outer transmission chamber inner bulkhead 2 and the inner transmission chamber inner bulkhead 9 through the bolt 6, and the connecting rod 5 is connected with the bolt 6 as a movable shaft; the bolt 6 fixes the connecting rod 5 between the outer and inner transmission chamber bulkheads as a movable shaft center, the connecting rod 5 can rotate around the bolt 6 to drive the guide wheel to move, and the movable shaft connection design ensures that the connecting rod 5 can rotate flexibly at a fixed position to adapt to the requirements of straight running and turning, the outer guide wheel 8 and the inner guide wheel 7 are cut and polished into shape from two or more composite materials of magnesium oxide-mullite-cordierite, and the turning angle of the turning track is 1 / 4 circle, semicircle or any arc, the guide wheels are made of magnesium oxide-mullite-cordierite composite material and are cut and polished into shape, have the characteristics of high temperature resistance, corrosion resistance and high strength, and are suitable for the environment of the kiln, and the turning angle of the turning track can be adjusted, such as 1 / 4 circle, semicircle or any arc, and the guide wheels with different diameters are matched with the angle to realize accurate turning. Specific embodiment two:

[0031] Reference Figures 1 to 4 According to the contents in the above specific embodiments, the following contents are further disclosed:

[0032] The kiln outer track turning device aims to realize the turning of the sagger in the same plane through the diameter difference of the guide wheels, and avoids the complexity and failure rate of the traditional lifting cylinder. The operation of the device is power input and transmission, smooth running of the straight track and turning execution of the turning track, and the core is to utilize the linear speed difference of the outer guide wheel 8 and the inner guide wheel 7 on the turning track, combined with the synergistic effect of the transmission system, to drive the sagger to complete the turning along the predetermined arc-shaped path.

[0033] Power input and transmission: the driving motor is started as the power source of the whole device, and outputs constant rotary power, the motor transmits the power to the first gear of each group of transmission gears 4 through the transmission chain 3. The transmission gears 4 have equal diameters to ensure consistent rotation speed, each group of three transmission gears 4 is connected through the meshing of the chain surfaces to form a power transmission chain, and the power is sequentially distributed to the other gears in the group. The transmission gears 4 are fixed to the end of the connecting rod 5, the connecting rod 5 is movably connected between the outer transmission chamber inner bulkhead 2 and the inner transmission chamber inner bulkhead 9 through the bolt 6, the rotation of the gears drives the connecting rod 5 to rotate synchronously, the motor provides constant rotation speed, the chain uniformly transmits the power to the gear group, the rotation of the gears is converted into the circular motion of the connecting rod 5, and the connecting rod 5 acts as a bridge for power transmission to transmit the rotary force of the gears to the guide wheels at both ends of the connecting rod 5 to drive the guide wheels to rotate. The power transmission is continuous and uniform, which ensures the stability of the subsequent straight running and turning actions.

[0034] Straight track smooth running: the two straight tracks outside the transmission chamber outer cabin wall 1, the outer guide wheel 8 and the inner guide wheel 7 have the same diameter, the motor drives the connecting rod 5 to rotate through the chain and gear, the guide wheels at both ends of the connecting rod 5 rotate at the same angular velocity, because the diameters of the guide wheels are equal, the linear velocities of the outer guide wheel 8 and the inner guide wheel 7 are v = ω × r, ω is the angular velocity, and r is the same radius, the sagger is supported by the guide wheels and smoothly advances along the straight track, the connecting rod 5 is fixed to the transmission chamber cabin wall through the bolt 6, the movable shaft connection design allows the connecting rod 5 to rotate freely while keeping the position stable, the rotation speeds of the guide wheels are consistent, the linear velocities are equal, the sagger is pushed to move linearly, there is no tendency to turn, the transmission chamber outside or inside provides closed protection for the transmission system, and smooth running in the high-temperature environment is ensured. The straight track smoothness depends on the consistent diameters of the guide wheels and uniform power distribution, thereby providing a stable basis for subsequent turning.

[0035] Turning execution of the turning track: when the sagger enters the turning track outside the transmission chamber outer cabin wall 1, the diameters of the outer guide wheel 8 and the inner guide wheel 7 change: the diameter of the outer guide wheel 8 is greater than that of the inner guide wheel 7, the motor continues to drive the connecting rod 5 to rotate through the chain and gear, the connecting rod 5 keeps a constant angular velocity and synchronously drives the guide wheels at both ends to rotate, because the diameter of the outer guide wheel 8 is larger, its linear velocity vout = ω × rout is higher than that of the inner guide wheel 7, wherein rout > rin, and the linear velocity difference causes the outer guide wheel 8 to move a distance greater than the inner guide wheel 7 in unit time, under the joint action of the outer long path and the inner short path, the sagger turns along the arc track of the turning track, and the turning angle, such as 1 / 4 circle, semicircle or arbitrary arc, is determined by the diameter difference of the guide wheels and the track design, and the diameter of the guide wheel is adjusted according to process requirements.

[0036] Under the same angular velocity, the diameter difference of the guide wheels directly affects the linear velocity. The larger diameter of the outer guide wheel 8 makes its linear velocity higher than that of the inner guide wheel 7, forming an outer fast and inner slow movement mode, the sagger is supported by the guide wheels, the outer guide wheel 8 pushes its outer path longer, and the inner guide wheel 7 restricts its inner path shorter, and the resultant force makes the sagger naturally turn along the arc track, each group of three gears is kept synchronous through the chain, even when the number of gears at the turning place is less than three, the chain flexibly connects 1 or 2 gears, ensuring that the end connecting rod 5 can still operate, and the turning relies on the linear velocity difference generated by the diameter difference of the guide wheels, and no additional mechanism is needed to realize the in-plane turning.

[0037] The transmission system can be installed in the outer transmission chamber or the inner transmission chamber according to the track layout, the closed space protects the chain, gear and other components from high temperature and dust, the outer guide wheel 8 and the inner guide wheel 7 are made of magnesium oxide-mullite-cordierite composite material, which can resist high temperature above 500 DEG C and corrosion, ensure the stability of long-time operation, the distance between the two ends of the connecting rod 5 is equal, which ensures that the saggar does not deviate during turning and maintains the operation accuracy, the closed design of the transmission chamber isolates external interference, prolongs the service life of the components, and the high-temperature-resistant material ensures that the guide wheel does not fail in the kiln environment, supports the continuous execution of the turning action, and the protection and material durability of the overall system provide reliable protection for the turning.

[0038] The complete process of the turning process: the motor drives the chain, the chain drives the gear set to rotate, the connecting rod 5 receives power, on the straight track, the guide wheels have equal diameters and consistent linear velocities, the saggar moves straight, reaches the turning track, the outer guide wheel 8 has an increased diameter and a higher linear velocity than the inner guide wheel 7, the linear velocity difference makes the saggar move a greater distance on the outside than on the inside, and the turning is completed along the arc-shaped track, and after turning, the saggar enters the next straight track, the guide wheels have consistent diameters and continue to run straight.

[0039] Angular velocity and linear velocity relationship:

[0040] Angular velocity ω = motor speed, which is kept constant by the chain and gear.

[0041] When straight: vout = ω × rout, vinner = ω × rinner, rout = rinner, vout = vinner;

[0042] When turning: rout > rinner, vout > vinner, linear velocity difference Δv = ω × (rout - rinner);

[0043] Turning radius: determined by the difference in guide wheel diameters and the arc of the track, Δv drives the saggar to move along the arc-shaped path.

[0044] Through the above structure, the in-plane turning is realized: without the need for lifting cylinders, the structure is simplified, the failure rate and maintenance cost are reduced, the chain and gear set are cooperatively driven, the linear velocity difference of the guide wheels realizes precise turning, the operation is stable, the high-temperature-resistant material and the closed transmission chamber ensure long-term operation in a high-temperature environment, the turning angle and the guide wheel diameter are adjustable, and the device adapts to various kiln process requirements.

[0045] The turning operation logic of the kiln outer track turning device is based on the continuity of power transmission and the ingenious design of the linear velocity difference of the guide wheels. The working principle realizes seamless transition from straight to turning through motor driving, chain and gear cooperation and guide wheel diameter difference.

[0046] In summary:

[0047] The closed structure of the outer and inner transmission chambers realizes protection and flexible installation of the transmission system, achieves the effects of reducing external interference and prolonging service life, the meshing structure of the transmission chain 3 and each group of three transmission gears 4 realizes efficient power transmission and synchronous driving, achieves the effects of stable operation and uniform power, the structure of the connecting rod 5 with the outer guide wheel 8 and the inner guide wheel 7 installed at two ends realizes the function of turning in the plane with different linear speeds, achieves the effects of not needing to use lifting cylinders and reducing the failure rate, the movable shaft of the bolt 6 is connected with the connecting rod 5 and the cabin wall, realizes free rotation of the connecting rod 5, achieves the effects of flexible movement and accurate operation, the guide wheel structure is made of magnesium oxide-mullite-cordierite composite material, realizes high-temperature durability, achieves the effects of corrosion resistance and adaptation to harsh working conditions, the adjustable turning angle and guide wheel diameter design realizes the adaptation to process requirements, achieves the effects of strong universality and wide application, and the whole is designed through the guide wheel linear speed difference and efficient transmission, solves the complexity and high failure problem of the traditional turning device, improves the automation level and production efficiency, provides a reliable scheme for kiln sintering, and reduces the maintenance cost.

[0048] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through another feature therebetween. Moreover, the first feature "on", "above" and "on the surface" of the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "under" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0049] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A kiln outside track turning device comprising an outside drive chamber outer bulkhead (1), an outside drive chamber inner bulkhead (2), an inside drive chamber inner bulkhead (9) and an inside drive chamber outer bulkhead (10), characterised in that: The outer drive chamber outer cabin wall (1) and the outer drive chamber inner cabin wall (2) are provided with a transmission chain (3), a transmission gear (4) and a bolt (6), the outer drive chamber inner cabin wall (2) and the inner drive chamber outer cabin wall (10) are connected with a connecting rod (5), the connecting rod (5) is respectively provided with an outer guide wheel (8) and an inner guide wheel (7) at both ends, the connecting rod (5) is connected with the transmission gear (4) through the inner guide wheel (7), the transmission chain (3) is arranged on the surface of the adjacent transmission gear (4) in meshing mode, and every three transmission gears (4) are connected with the transmission chain (3), the track where the outer drive type outer cabin wall is located is composed of two straight tracks and a turning track, the outer guide wheel (8) and the inner guide wheel (7) are of the same size on the entire straight track, and the diameter of the outer guide wheel (8) is greater than that of the inner guide wheel (7) when the turning track.

2. A kiln outer track turning device according to claim 1, characterised in that: The outer drive chamber outer cabin wall (1) and the outer drive chamber inner cabin wall (2) form a closed space, and the closed space is an outer drive chamber, and the inner drive chamber inner cabin wall (9) and the inner drive chamber outer cabin wall (10) form an inner drive chamber.

3. A turn around device for a track outside a furnace as claimed in claim 2, wherein: The transmission chain (3), the transmission gear (4) and the bolt (6) cooperate with the outer guide wheel (8), the inner guide wheel (7) and the connecting rod (5) to form the entire transmission system, and the transmission system is located in the inner drive chamber or the outer drive chamber.

4. A turn around device for a kiln external track according to claim 1, characterised in that: Every three transmission gears (4) are connected with the transmission chain (3) during normal operation, if the number of the transmission gears (4) is not an integer multiple of 3, the transmission chain (3) is connected with one or two transmission gears (4), and the connecting rods (5) at the end of the straight track or the turning part are combined as a whole.

5. A turn around device for a kiln external track according to claim 1, characterised in that: The diameters of the transmission gears (4) are equal, the first gear in each group of transmission gears (4) is connected with a motor as a power input point through the transmission chain (3).

6. A turn around device for a kiln external track according to claim 1, characterised in that: The connecting rod (5) is installed between the outer drive chamber inner cabin wall (2) and the inner drive chamber inner cabin wall (9) through the bolt (6), and the connecting rod (5) is movably connected with the bolt (6).

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