Guide mechanism of roller kiln and roller kiln thereof

Abstract

The utility model discloses a guide mechanism of a roller kiln and the roller kiln thereof, and belongs to the field of roller kilns. Comprising a mounting seat, a driving rod, a push plate and a driven rod, the mounting seat is connected to the outer wall of a furnace body of the roller kiln; the driving rod and the driven rod are slidably arranged on the furnace body in a penetrating manner through a mounting seat; one ends of the driving rod and the driven rod are vertically connected with the push plate in the furnace body, and the other end of the driving rod is connected with a linear driving source outside the mounting seat; the driving rod drives the push plate to reciprocate in the horizontal direction perpendicular to the feeding direction of the roller kiln under the action of the linear driving source, and the driven rod is driven by the push plate to move synchronously with the driving rod. Materials on the roller are pushed to be right through the push plate capable of doing reciprocating motion, the materials are kept in the normal advancing direction, and the mechanism reliability is high.

Description

Technical Field

[0001] The utility model belongs to the field of roller kilns, and in particular relates to a guide mechanism of a roller kiln and the roller kiln. Background Art

[0002] Kilns are equipment made of refractory materials for firing products. They are now widely used in the sintering of daily-use porcelain, building bricks and tiles, powder materials, etc. Taking the atmosphere-protected roller kiln as an example, its basic working principle is: using a motor to drive multiple rows of rollers to rotate, the powder materials in the graphite sagger are continuously sent into the closed furnace body of tens of meters, and after being sintered at a high temperature of about 850℃, they are taken out of the furnace and enter the next process.

[0003] However, as the output increases, the length of the kiln increases, and the friction between the sagger and the roller causes the sagger to deviate in the direction of travel in the furnace, causing collisions with the furnace wall and even kiln blocking. Existing correction schemes include installing a guide mechanism on the roller or adjusting the roller speed and angle to achieve correction. The former is not conducive to the strength of the roller and causes the roller to break, while the latter has a more complex structure and a high failure rate. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a guiding mechanism of a roller kiln and the roller kiln thereof, which can push the materials on the roller rods to the right position through a push plate capable of reciprocating motion, so as to keep the materials in a normal moving direction.

[0005] The utility model includes a guiding mechanism of a roller kiln, including a mounting seat, an active rod, a push plate and a driven rod;

[0006] The mounting seat is connected to the outer wall of the furnace body of the roller kiln; the active rod and the driven rod are both slidably arranged on the furnace body through the mounting seat; one end of the active rod and the driven rod are connected to the push plate in the furnace body, and the other end of the active rod is connected to the linear drive source outside the mounting seat;

[0007] The active rod drives the push plate to reciprocate in the horizontal direction perpendicular to the feeding direction of the roller kiln under the action of the linear driving source, and the driven rod moves synchronously with the active rod under the drive of the push plate.

[0008] Furthermore, an active rod and a plurality of driven rods are connected to the push plate, and the plurality of driven rods are symmetrically distributed on both sides of the active rod.

[0009] Furthermore, a driven rod airtight assembly is arranged on the mounting seat, and the driven rod airtight assembly includes a guide sleeve, a sleeve and a second sealing ring;

[0010] The guide sleeve is arranged in the mounting seat, and the driven rod can be slidably inserted into the guide sleeve;

[0011] The sleeve is sleeved on the outer end of the guide sleeve and connected to the mounting seat, accommodating the other end of the driven rod;

[0012] A second sealing ring is arranged between the sleeve and the mounting seat.

[0013] Furthermore, the guide sleeve is a cast iron graphite sleeve.

[0014] Furthermore, the linear drive source is a linear drive mechanism; the linear drive mechanism is arranged on the mounting seat and connected to the other end of the active rod.

[0015] Furthermore, the linear drive mechanism includes a cylinder, a piston rod is provided on the cylinder, and the active rod is connected to the piston rod.

[0016] Furthermore, the piston rod is inserted into the mounting seat; the mounting seat is provided with a piston rod airtight assembly, and the piston rod airtight assembly includes a pressure cover arranged on the mounting seat and a first sealing ring arranged between the mounting seat and the pressure cover.

[0017] Furthermore, the active rod and the push plate are connected via a mechanical flexible element.

[0018] Furthermore, it also includes a cooling component, including a cooling pipe; a liquid cooling hole is provided in the mounting seat, and the cooling pipe is connected to the liquid cooling hole.

[0019] A roller kiln, comprising a furnace body and a guide mechanism of the roller kiln as described above;

[0020] A roller bar is arranged in the furnace body, and a push plate in the guide mechanism is located above the roller bar and its moving direction is perpendicular to the feeding direction of the roller bar.

[0021] Beneficial effects of the utility model:

[0022] The utility model sets a guiding mechanism, and drives the push plate to push the material in a direction perpendicular to the feeding direction of the roller to correct the travel path of the material through an active rod. The utility model is provided with a driven rod connected to the push plate. When the push plate moves back and forth, it drives the driven rod to slide synchronously with the active rod on the mounting seat to play a guiding role, and is fixedly connected to the push rod through the active rod and the driven rod at the same time. The multi-rod positioning maintains the installation angle of the push plate, avoids the push plate from tilting and affecting the pushing effect, and ensures the stable operation of the guiding mechanism.

[0023] The guiding mechanism provided by the utility model is connected by a mounting seat arranged on the outer wall of the roller kiln furnace body. Except for transmission parts such as an active rod, a driven rod and a push plate extending into the furnace body to act on the material on the roller rod, the other components are arranged outside the furnace body, so as to avoid the high-temperature dust environment in the furnace body affecting the operation and life of the guiding mechanism, and can further cooperate with the sealing member to ensure the airtightness of the furnace body connected to the guiding structure, so as to avoid dust overflowing from the furnace body or destruction of the atmosphere in the furnace body, and the overall reliability of the guiding mechanism is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] AttachedFigure 1 This is a front view of a roller kiln in an embodiment of the utility model;

[0025] Attached Figure 2 For attachment Figure 1 Sectional view in the AA direction;

[0026] Attached Figure 3 For attachment Figure 2 A partial enlarged view of point C in the middle;

[0027] Attached Figure 4 A top view of a roller kiln in an embodiment of the utility model;

[0028] Attached Figure 5 For attachment Figure 4 Cross-sectional view in the BB direction;

[0029] Attached Figure 6 For attachment Figure 5 A partial enlarged view of point D in the middle.

[0030] In the figure, 1. furnace body; 11. roller; 12. insulation layer; 13. flange; 14. sealing gasket; 2. guide mechanism; 21. mounting seat; 22. active rod; 23. push plate; 24. driven rod; 25. cylinder; 251. piston rod; 26. floating joint; 27. piston rod airtight assembly; 271. pressure cover; 272. first sealing ring; 28. driven rod airtight assembly; 281. guide sleeve; 282. sleeve; 283. second sealing ring; 29. ​​liquid cooling hole; 3. cooling assembly; 31. cooling pipe; 32. valve. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] As attached Figure 1 -Attached Figure 6 As shown, the utility model includes a guiding mechanism of a roller kiln, and the guiding mechanism 2 includes a mounting seat 21, an active rod 22, a push plate 23 and a driven rod 24;

[0037] The mounting seat 21 is connected to the outer wall of the furnace body 1 of the roller kiln. Specifically, the mounting seat 21 is provided with a mounting hole, and a through hole is provided on the side wall of the furnace body 1. The mounting hole of the mounting seat 21 is aligned with the through hole on the furnace body 1 and is mounted on the outer wall of the furnace body 1.

[0038] The active rod 22 and the driven rod 24 both pass through the mounting hole of the mounting seat 21 and the through hole of the furnace body 1, and are slidably connected to the mounting seat 21 and the furnace body 1; one end of the active rod 22 and the driven rod 24 are both extended into the furnace body 1 and connected to the push plate 23, and optionally, one end of the active rod 22 and the driven rod 24 are both extended into the furnace body 1 and vertically connected to the push plate 23; wherein, the other end of the active rod 22 is connected to a linear drive source arranged on the mounting seat 21 outside the furnace body 1, and under the action of the linear drive source, the active rod 22 actively moves in its mounting direction and drives the push plate 23 connected at one end to reciprocate, and optionally, the linear drive source is a linear drive mechanism or a driving force provided manually; the driven rod 24 is also connected to the push plate 23, so the driven rod 24 follows the push plate 23 to move on the mounting seat 21; wherein, the installation directions of the active rod 22 and the driven rod 24 in the guide mechanism 2 are both horizontal and perpendicular to the feeding direction of the roller in the roller kiln;

[0039] The active rod 22 drives the push plate 23 to reciprocate in the horizontal direction under the action of the linear driving source, and the movement direction of the push plate 23 is perpendicular to the feeding direction of the roller kiln, pushing the material from one side of the material moving direction on the roller to correct the material's travel path. The driven rod 24 moves synchronously with the active rod 22 under the drive of the push plate 23, and the driven rod 24 cooperates with the mounting seat 21 to play a guiding role.

[0040] The embodiment of the utility model is provided with a guiding mechanism 2, and the active rod 22 drives the push plate 23 to push the material in a direction perpendicular to the feeding direction of the roller to correct its travel route; a driven rod 24 vertically connected to the push plate 23 is provided, and the push plate 23 drives the driven rod 24 to slide synchronously with the active rod 22 on the mounting seat 21 when the push plate 23 moves back and forth, and plays a guiding role, and the active rod 22 and the driven rod 24 are simultaneously connected to the vertical fixed connection of the push plate 23, and the multi-rod positioning keeps the installation angle of the push plate 23 parallel to the transportation direction, and the push plate 23 is vertically pushed toward the material, so as to avoid the push plate 23 tilting and affecting the pushing effect, thereby ensuring the stable operation of the guiding mechanism 2;

[0041] The guiding mechanism 2 provided by the embodiment of the utility model is connected through a mounting seat 21 arranged on the outer wall of the roller kiln furnace body 1. Except for the transmission parts such as the active rod 22, the driven rod 24 and the push plate 23 extending into the furnace body 1 to act on the material on the roller 11, the remaining components on the mounting seat 21, especially the linear drive source, are all arranged outside the furnace body 1, so as to avoid the high temperature and dust environment in the furnace body 1 affecting the operation and life of the guiding mechanism 2, and can further cooperate with the sealing member to ensure the airtightness of the furnace body 1 together with the guiding structure 2, so as to avoid the dust overflow in the furnace body 1 or the atmosphere in the furnace body 1 being destroyed, and the overall reliability of the guiding mechanism 2 is high.

[0042] In a preferred embodiment, the guiding mechanism 2 includes an active rod 22 and a plurality of driven rods 24, and the number of driven rods 24 is an even number; specifically, the push plate 23 is vertically connected to an active rod 22 at the center position of the installation direction, and the two sides of the active rod 22 are provided with driven rods 24 with symmetrical numbers and positions, so as to ensure that the push plate 23 is subjected to balanced force, which is conducive to maintaining the stability of the installation angle of the push plate 23 when it is pushed out and retracted, and avoiding the angle tilt from affecting the correction effect on the material. Optionally, the guiding mechanism 2 includes an active rod 22 and two driven rods 24, both of which are vertically connected to the push plate 23, and the two driven rods 24 are symmetrically arranged on both sides of the active rod 22.

[0043] In a preferred embodiment, in order to avoid damaging the air tightness of the furnace body 1 after the guide mechanism 2 is installed, a driven rod airtight assembly 28 is provided on the mounting seat 21, including a guide sleeve 281, a sleeve 282 and a second sealing ring 283; the mounting hole of the mounting seat 21 is arranged perpendicular to the roller conveying direction, and a guide sleeve 281 is arranged in some of the mounting holes, and the driven rod 24 passes through the guide sleeve 281 and the through hole on the furnace body 1 to enter the furnace body 1 and connect with the push plate 23, and the driven rod 24 is slidably connected to the guide sleeve 281, and the guide sleeve 281 guides the driven rod 24; the inner diameter of the open end of the sleeve 282 cooperates with the guide sleeve 281, is sleeved on the end of the guide sleeve 281 away from the furnace body 1, and is fixedly connected to the mounting seat 21, and the sleeve 282 is used to accommodate the end of the driven rod 24 outside the furnace body 1; the driven rod 24 moves in the accommodating space formed by the sleeve 282, the guide sleeve 281 and the through hole of the furnace body 1. Preferably, a second sealing ring 283 is provided between the sleeve 282 and the mounting seat 21 to prevent the connection between the driven rod 24 and the furnace body 1 from damaging the air tightness of the roller kiln. Optionally, a flange is provided at the open end of the sleeve 282 for connecting with the mounting seat 21, and the second sealing ring 283 is provided between the flange of the sleeve 282 and the mounting seat 21. Optionally, the second sealing ring 283 can be an O-ring, a metal gasket or a graphite gasket. Optionally, in order to withstand higher temperatures, the second sealing ring 283 uses a fluororubber sealing ring.

[0044] In a preferred embodiment, the guide sleeve 281 is a cast iron graphite sleeve; the cast iron graphite sleeve has good self-lubrication and does not require additional lubricating oil or grease. Its friction surface can form a lubricating film to reduce friction and wear on the driven rod 24. Cast iron graphite has excellent wear resistance and can work under high load and high speed conditions for a long time without being easily worn. At the same time, cast iron graphite has good high temperature resistance, which reduces the influence of heat transfer on the guide sleeve 281 when the driven rod 24 reciprocates on the outer wall of the furnace body 1, and can meet the use requirements of the roller kiln.

[0045] In a preferred embodiment, the linear drive source is a linear drive mechanism, and the other end of the active rod 22 that is not connected to the push plate 23 is connected to the linear drive mechanism, and the active rod 22 is driven to move by the linear moving mechanism; preferably, the linear drive mechanism is arranged on a mounting seat 21 on the outer wall of the furnace body 1, and the linear drive source is arranged outside the furnace body 1 so as not to be affected by the high temperature dust environment inside the furnace body 1.

[0046] In a preferred embodiment, the linear drive mechanism includes a cylinder 25 vertically mounted on the mounting seat 21, a piston rod 251 is arranged in the cylinder 25, and the cylinder 25 drives the piston rod 251 to reciprocate perpendicular to the roller feeding direction, and the end of the active rod 22 not connected to the push plate 23 is connected to the piston rod 251 to realize the movement of the active rod 22, and then the active rod 22 drives the push plate 23 connected to the other end to move. Optionally, the linear drive mechanism in the guide mechanism 2 can also be a linear module or an electric steel, which can drive the active rod 22 to make a linear motion.

[0047] In a preferred embodiment, one end of the piston rod 251 is arranged in the cylinder 25, and the other end passes through the mounting hole of the mounting seat 21, and extends into the through hole of the furnace body 1 to connect with the active rod 22. Optionally, the piston rod 251 and the active rod 22 are connected by bolts; in order to prevent the guiding mechanism 2 from damaging the air tightness of the roller kiln, a piston rod airtight assembly 27 is arranged on the mounting seat 21, including a gland 271 and a first sealing ring 272. Specifically, a gland 271 is arranged at the connection between the mounting seat 21 and the cylinder 25, and a first sealing ring 272 is arranged around the piston rod 251 between the mounting seat 21 and the gland 271. Optionally, the first sealing ring 272 can be a lip sealing ring; preferably, in order to withstand higher temperatures, the first sealing ring 272 adopts a fluororubber sealing ring.

[0048] In a preferred embodiment, in order to compensate for installation errors, avoid the push plate 23 from getting stuck due to low processing and installation precision, absorb vibration and impact during operation, improve operation stability and precision, reduce mechanical stress, and extend the service life of the mechanism, the active rod 22 is connected to the push plate 23 through a mechanical flexible element. Optionally, the mechanical flexible element can be a floating joint 26 or a universal joint. Optionally, when a floating joint 26 is used, the floating joint 26 is connected to the push plate 23 through bolts, and the active rod 22 is connected to the floating joint 26.

[0049] In a preferred embodiment, in order to prevent the correction mechanism 2 from being overheated and causing deformation or failure of the components, a cooling assembly 3 is further provided on the correction mechanism 2, including a cooling pipe 31; specifically, a liquid cooling hole 29 is provided in the mounting seat 21, which is connected to the cooling pipe 31, and the two ends of the cooling pipe 31 are respectively connected to the liquid inlet pipe and the liquid outlet pipe, and the cooling medium is transported through the liquid cooling hole 29 and the cooling pipe 31 to reduce the temperature of the correction mechanism 2. Specifically, a liquid cooling hole 29 is provided on the mounting seat 21, and a cooling pipe 31 is provided in the liquid cooling hole 29, and the two ends of the cooling pipe 31 are respectively connected to the liquid inlet pipe and the liquid outlet pipe, which are used to transport the cooling medium and reduce the temperature of the correction mechanism 2. Preferably, a liquid cooling hole 29 is arranged around the side of the mounting hole of the mounting seat 21 to reduce the temperature of the sliding connection between the mounting seat 21 and the telescopic rod 251 or the driven rod 24; optionally, the liquid cooling hole 29 is spirally wound outside the side of each mounting hole, and then connected to the outside of the two sides of the mounting seat 21, so as to expand the coverage of the laid liquid cooling hole 29 at the sliding connection and achieve a better cooling effect; optionally, the liquid cooling hole 29 bypasses the outside of each mounting hole side in turn, for example, bypasses the mounting hole to the left and then bypasses the next adjacent mounting hole to the right, and is wound back and forth between all the mounting holes several times to achieve cooling of all sliding connections, expand the coverage of the liquid cooling hole 29, and achieve a better cooling effect. Optionally, a valve 32 is also provided on the cooling pipe 31 to control the delivery of the cooling medium; optionally, the valve 32 is a ball valve. Optionally, the cooling medium in the cooling pipe 31 is water.

[0050] In a preferred embodiment, a guide mechanism 2 is provided on both sides of the material in the roller conveyor to correct the travel direction of the material from both sides at the same time, thereby improving work efficiency. Simultaneous force application from both sides of the material also ensures a better correction effect.

[0051] The working principle of the utility model is as follows: after the material on the roller 11 in the furnace body 1 is transported to the specified position, the linear drive mechanism drives the active rod 22 to drive the push plate 23 to extend toward the material, and pushes the material from both sides of the material to correct its travel path. After the correction is completed, the linear drive mechanism drives the active rod 22 to drive the push plate 23 to reset. During the extension and reset of the push plate 23, the driven rod 24 cooperates and slides synchronously, and the components, especially the sliding connections, are cooled through the cooling component 3.

[0052] In an optional embodiment, the guiding mechanism 2 is controlled by an intelligent system, and a detection device is installed in the furnace body 1 to detect whether the material's travel route is abnormal. If an abnormality is detected, the intelligent system controls the guiding mechanism 2 to operate and push the material; in another optional embodiment, after manually identifying that the material's travel direction is offset, the material is transported to the corresponding position and the guiding mechanism 2 is manually controlled to operate and push the material; in another optional embodiment, the guiding mechanism 2 performs a pushing action at a set frequency to correct the material's travel direction.

[0053] The utility model also includes a roller kiln, including a furnace body 1 and a guiding mechanism 2 of the roller kiln as in any of the above embodiments; a plurality of rollers 11 are arranged in the furnace body 1, and the rollers 11 are arranged in sequence to form a roller, and specifically, in order to maintain the temperature in the furnace body 1, a heat-insulating layer 12 is arranged in the side wall of the furnace body 1, and the side wall of the furnace body 1 has a certain thickness; an active rod 22 and a driven rod 24 in the guiding mechanism 2 pass through the heat-insulating layer 12 of the furnace body 1 and extend into the furnace body 1 to be connected with a push plate 23, and the push plate 23 is arranged above the roller 11 to push the material being transported on the roller 11, and the moving direction of the push plate 23 is perpendicular to the feeding direction of the roller 11. Optionally, a flange 13 is provided on the outer wall of the furnace body 1 for fixing the mounting seat 21 of the guiding mechanism 2; optionally, the mounting seat 21 is connected to the flange 13 by bolts; preferably, a sealing gasket 14 is provided between the mounting seat 21 and the flange 13 to ensure the airtightness of the connection between the mounting seat 21 and the furnace body 1, thereby ensuring the airtightness of the roller kiln as a whole, avoiding heat loss or destruction of the atmosphere in the roller kiln, and avoiding the leakage of pollutants such as high-temperature dust in the furnace body 1 to cause environmental pollution. Optionally, the sealing gasket 14 can be a graphite sealing gasket, an inner and outer ring metal winding gasket, a metal wrapped gasket or a non-asbestos fiber gasket.

[0054] The above is only an embodiment and does not limit the present invention in any way. Any person skilled in the art can make many possible changes, modifications or modifications to the present invention without departing from the scope of the present invention by using the above disclosed technical contents. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the present invention should fall within the scope of protection of the present invention.

Claims

1. A guiding mechanism for a roller kiln, characterized in that: It comprises a mounting seat (21), an active rod (22), a push plate (23) and a driven rod (24); The mounting seat (21) is connected to the outer wall of the furnace body (1) of the roller kiln; the active rod (22) and the driven rod (24) are both slidably arranged on the furnace body (1) through the mounting seat (21); one end of the active rod (22) and the driven rod (24) are both connected to the push plate (23) inside the furnace body (1), and the other end of the active rod (22) is connected to a linear drive source outside the mounting seat (21); The active rod (22) drives the push plate (23) to reciprocate in a horizontal direction perpendicular to the feeding direction of the roller kiln under the action of the linear drive source, and the driven rod (24) moves synchronously with the active rod (22) under the drive of the push plate (23).

2. The guiding mechanism of the roller kiln according to claim 1, characterized in that: An active rod (22) and a plurality of driven rods (24) are connected to the push plate (23), and the plurality of driven rods (24) are symmetrically distributed on both sides of the active rod (22).

3. The guiding mechanism of the roller kiln according to claim 1, characterized in that: A driven rod airtight assembly (28) is arranged on the mounting seat (21), and the driven rod airtight assembly (28) comprises a guide sleeve (281), a sleeve (282) and a second sealing ring (283); The guide sleeve (281) is arranged in the mounting seat (21), and the driven rod (24) can be slidably inserted into the guide sleeve (281); The sleeve (282) is sleeved on the outer end of the guide sleeve (281) and connected to the mounting seat (21), accommodating the other end of the driven rod (24); The second sealing ring (283) is provided between the sleeve (282) and the mounting seat (21).

4. The guiding mechanism of the roller kiln according to claim 3, characterized in that: The guide sleeve (281) is a cast iron graphite sleeve.

5. The guiding mechanism of the roller kiln according to claim 1, characterized in that: The linear drive source is a linear drive mechanism; the linear drive mechanism is arranged on the mounting seat (21) and connected to the other end of the active rod (22).

6. The guiding mechanism of the roller kiln according to claim 5, characterized in that: The linear drive mechanism comprises a cylinder (25), a piston rod (251) is provided on the cylinder (25), and the active rod (22) is connected to the piston rod (251).

7. The guiding mechanism of the roller kiln according to claim 6, characterized in that: The piston rod (251) is inserted into the mounting seat (21); a piston rod airtight assembly (27) is arranged on the mounting seat (21), and the piston rod airtight assembly (27) comprises a pressure cover (271) arranged on the mounting seat (21) and a first sealing ring (272) arranged between the mounting seat (21) and the pressure cover (271).

8. The guide mechanism of the roller kiln according to any one of claims 5 to 7, characterized in that: The active rod (22) and the push plate (23) are connected via a mechanical flexible element.

9. The guiding mechanism of the roller kiln according to claim 1, characterized in that: It also includes a cooling assembly (3) including a cooling pipe (31); a liquid cooling hole (29) is provided in the mounting seat (21), and the cooling pipe (31) is connected to the liquid cooling hole (29).

10. A roller kiln, characterized in that: A roller kiln comprising a furnace body (1) and a guide mechanism (2) as claimed in any one of claims 1 to 9; A roller bar (11) is arranged in the furnace body (1), and the push plate (23) in the guiding mechanism (2) is located above the roller bar (11) and its moving direction is perpendicular to the feeding direction of the roller bar (11).

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