Auxiliary device for replacing cooling fan of furnace roller motor

By designing an auxiliary device for replacing the furnace roller motor cooling fan and utilizing the coordination of the support frame and the control rod tray, the cooling fan can be quickly disassembled and installed, solving the problem of low efficiency in replacing and maintaining the cooling fan and improving replacement efficiency and convenience.

CN223369309UActive Publication Date: 2025-09-23SHOUGANG ZHIXIN QIAN AN ELECTROMAGNETIC MATERIALS CO LTD
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Patent Information

Application Number
CN202422037178.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-21
Publication Date
2025-09-23
Estimated Expiration
2034-08-21

AI Technical Summary

Technical Problem

The replacement and maintenance efficiency of cooling fans is low, especially when replacing them in high temperature environments, which is labor-intensive and time-consuming.

Method used

Provided is a furnace roller motor cooling fan replacement auxiliary device, comprising a support frame, a control rod and a tray. The cooling fan position is fixed by the support frame, and the cooling fan can be quickly disassembled and installed by utilizing the cooperation of the control rod and the tray.

Benefits of technology

The replacement and maintenance efficiency of the cooling fan is improved, the labor intensity and time are reduced, and the convenience and efficiency of replacement are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a furnace roller motor cooling fan replacement auxiliary device, which is characterized in that a support frame is fixed at a fixed position device near a cooling fan, and the support frame comprises two connecting pieces and two support pieces which are alternately connected and define a frame-shaped hole, so that the cooling fan needing to be replaced is positioned in the frame-shaped hole; the length direction of the connecting piece extends in the gravity direction, the control rod penetrates through one supporting piece and is in threaded fit with the corresponding supporting piece, the axial direction of the control rod extends in the length direction of the connecting piece, one end of the control rod is located in the frame-shaped hole to form a supporting end, the supporting end of the control rod supports the tray, and guide grooves are formed in the two sides of the tray. The guide grooves are slidably arranged on the corresponding connecting pieces in a sleeving mode in the length direction of the connecting pieces. The cooling fan can be placed on the tray, the control rod rotates to achieve lifting of the tray, the cooling fan is replaced, the replacement and maintenance efficiency of the cooling fan is improved, and the technical problem that the replacement and maintenance efficiency of the cooling fan is low is solved to a certain extent.
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Description

Technical Field

[0001] The present application belongs to the technical field of furnace roller motor maintenance, and in particular relates to an auxiliary device for replacing a furnace roller motor cooling fan. Background Art

[0002] The continuous annealing line's roller motors operate at high temperatures and high speeds for extended periods. To extend their service life, axial-flow cooling fans are installed near them. The cooling fans operate in high-temperature environments for extended periods, and in the event of a cooling fan failure, they require maintenance and replacement.

[0003] At present, to replace the cooling fan, it is necessary to remove and lower the faulty cooling fan, then use an overhead crane to lift the intact cooling fan to the vicinity of the furnace roller motor, and install and connect the power cord, etc. The overall replacement time of the cooling fan is long, the ambient temperature is high, and the labor intensity is high, and the replacement and maintenance efficiency of the cooling fan is low. Utility Model Content

[0004] The present application aims to at least to some extent solve the technical problem of low replacement and maintenance efficiency of cooling fans. To this end, the present application provides a furnace roller motor cooling fan replacement auxiliary device.

[0005] The embodiment of the present application provides a furnace roller motor cooling fan replacement auxiliary device, comprising:

[0006] The supporting frame includes two connecting members and two supporting members that are alternately connected and enclose a frame-shaped hole, wherein the two connecting members are arranged side by side and their lengths extend in the same direction;

[0007] A control rod passes through one of the support members and is threadedly engaged with the corresponding support member, wherein the axial direction of the control rod extends along the length direction of the connecting member and one end of the control rod is located in the frame-shaped hole to form a support end;

[0008] The tray is provided with guide grooves on both sides, and the guide grooves are slidably mounted on the corresponding connecting pieces along the length direction of the connecting pieces, and one end of the tray is supported on the supporting end.

[0009] In some or certain embodiments, the frame-shaped hole is a rectangular hole, and the length direction of the connecting member is the length direction of the rectangular hole.

[0010] In some or certain embodiments, the two support members are respectively a first support member and a second support member, the first support member is threadedly engaged with the control rod, and the support frame further includes a reinforcing rib connecting the second support member and the connecting member.

[0011] In some or certain embodiments, the connecting member is provided with a through hole spaced apart from the tray, and the furnace roller motor cooling fan replacement auxiliary device further comprises: a fastener used for the through hole to compress the connecting member.

[0012] In some or certain embodiments, the through hole is a strip-shaped hole whose length direction extends along the length direction of the connecting member.

[0013] In some or certain embodiments, the tray comprises:

[0014] disc-shaped body;

[0015] The two guide protrusions are respectively fixedly connected to the radial sides of the disc-shaped body and are both provided with the guide groove.

[0016] In some or certain embodiments, the guide protrusion includes an L-shaped portion and a guide portion, both of which are plate-shaped, one end of the L-shaped portion is fixedly connected to the disc-shaped body, the other end of the L-shaped portion is fixedly connected to the guide portion and is in sliding contact with the connecting member, and the guide portion is provided with the guide groove.

[0017] In some or certain embodiments, the axis of the control rod extends along the axis of the tray, and a coaxial cylindrical placement groove is provided at one end of the tray away from the supporting end.

[0018] In some or certain embodiments, the other end of the control rod is located outside the frame-shaped hole and is in the shape of a hexagonal stud, and the furnace roller motor cooling fan replacement auxiliary device also includes a handle fixedly connected to the other end of the control rod.

[0019] In some or certain embodiments, the furnace roller motor cooling fan replacement auxiliary device further includes:

[0020] A wear-resistant plate is located between the support end and the tray, and the tray is supported on the wear-resistant plate so as to be supported on the support end through the wear-resistant plate.

[0021] Advantageous effects provided by one or more embodiments of the present application:

[0022] When the cooling fan near the furnace roller motor needs to be replaced, the support frame can be fixed to a fixed device in a position near the cooling fan to play a supporting role. The support frame includes two connecting parts and two supporting parts that are alternately connected and enclosed to form a frame-shaped hole, so that the cooling fan that needs to be replaced can be located in the frame-shaped hole, and the two connecting parts are side by side and the length directions extend in the same direction. The position of the support frame can also be adjusted so that the length direction of the connecting part extends along the gravity direction of the environment where the cooling fan is located. The control rod passes through a support part and is threadedly engaged with the corresponding support part. The axial direction of the control rod extends along the length direction of the connecting part and one end is located in the frame-shaped hole to form a supporting end. The axial direction of the control rod is also the gravity direction of the environment where the cooling fan is located. The supporting end of the control rod can support the pallet. One end provides support for the tray, and at the same time, guide grooves are provided on both sides of the tray, and the guide grooves can be slidably mounted on the corresponding connectors along the length direction of the connector. The cooling fan that needs to be replaced can be disassembled and supported on the tray, and the control lever can be rotated in different directions to make the supporting end of the control lever move up or down relative to the supporting frame positioned by the fixed equipment, thereby driving the tray downward accordingly to take out the cooling fan that needs to be replaced and then put in the intact cooling fan. Finally, the control lever is rotated to move the tray upward to the place where the cooling fan is installed. The whole process is relatively quick, and the support of the cooling fan also facilitates the installation operation of the cooling fan, which is beneficial to improving the replacement and maintenance efficiency of the cooling fan, and to a certain extent solves the technical problem of low replacement and maintenance efficiency of the cooling fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 An axonometric view of a furnace roller motor cooling fan replacement auxiliary device in some embodiments or certain embodiments of the present application is shown.

[0025] Figure 2 A front view of a furnace roller motor cooling fan replacement auxiliary device in some embodiments or certain embodiments of the present application is shown.

[0026] Figure 3 A left view of a furnace roller motor cooling fan replacement auxiliary device in some embodiments or certain embodiments of the present application is shown.

[0027] Figure 4 A top view of a furnace roller motor cooling fan replacement auxiliary device in some embodiments or certain embodiments of the present application is shown.

[0028] Explanation of the accompanying drawings: 1. Support frame; 11. Connecting member; 111. Through hole; 12. Frame-shaped hole; 13. First supporting member; 14. Second supporting member; 15. Reinforcing rib; 2. Control lever; 21. Support end; 22. Handle; 3. Tray; 31. Disc-shaped body; 311. Columnar placement groove; 32. Guide protrusion; 321. Guide groove; 322. L-shaped portion; 3221. Positioning protrusion; 323. Guide portion. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0031] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0032] In addition, in this utility model, the descriptions of "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually 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 this utility model.

[0033] The present application will be described below with reference to the accompanying drawings:

[0034] Figure 1It shows an axonometric view of a furnace roller motor cooling fan replacement auxiliary device in some embodiments or certain embodiments of the present application, Figure 2 A front view of a furnace roller motor cooling fan replacement auxiliary device in some embodiments or certain embodiments of the present application is shown, with reference to Figure 1 and Figure 2 , an embodiment of the present application provides a furnace roller motor cooling fan replacement auxiliary device, comprising:

[0035] The supporting frame 1 includes two connecting members 11 and two supporting members that are alternately connected and enclose a frame-shaped hole 12. The two connecting members 11 are arranged side by side and their lengths extend in the same direction.

[0036] The control rod 2 passes through a support member and is threadedly engaged with the corresponding support member. The axial direction of the control rod 2 extends along the length direction of the connecting member 11 and one end is located in the frame-shaped hole 12 to form a support end 21.

[0037] The tray 3 is provided with guide grooves 321 on both sides, and the guide grooves 321 are slidably mounted on the corresponding connecting member 11 along the length direction of the connecting member 11 . One end of the tray 3 is supported on the supporting end 21 .

[0038] When the cooling fan near the furnace roller motor needs to be replaced, the support frame 1 can be fixed to a fixed device in a position near the cooling fan to play a supporting role. The support frame 1 includes two connecting parts 11 and two supporting parts that are alternately connected and enclosed to form a frame-shaped hole 12, so that the cooling fan that needs to be replaced can be located in the frame-shaped hole 12, and the two connecting parts 11 are side by side and their lengths extend in the same direction. The position of the support frame 1 can also be adjusted so that the length direction of the connecting part 11 extends along the gravity direction of the environment where the cooling fan is located. The control rod 2 passes through a support part and is threadedly engaged with the corresponding support part. The axial direction of the control rod 2 extends along the length direction of the connecting part 11 and one end is located in the frame-shaped hole 12 to form a support end 21. The axial direction of the control rod 2 is also the gravity direction of the environment where the cooling fan is located. The support end 21 of the control rod 2 can support the support One end of the disc 3 provides support for the tray 3. At the same time, guide grooves 321 are provided on both sides of the tray 3, and the guide grooves 321 can be slidably mounted on the corresponding connectors 11 along the length direction of the connector 11. The cooling fan that needs to be replaced can be disassembled and supported on the tray 3, so that the control lever 2 can rotate in different directions, and the support end 21 of the control lever 2 can move up or down relative to the support frame 1 positioned by the fixed equipment, thereby driving the tray 3 downward accordingly to take out the cooling fan that needs to be replaced and then put in the intact cooling fan. Finally, the control lever 2 is rotated to move the tray 3 upward to the place where the cooling fan is installed. The whole process is relatively quick. The support of the cooling fan also facilitates the installation operation of the cooling fan, which is conducive to improving the replacement and maintenance efficiency of the cooling fan, and to a certain extent solves the technical problem of low replacement and maintenance efficiency of the cooling fan.

[0039] It should be noted that the cooling fan body is also connected to the motor encoder power line. Due to the production characteristics of silicon steel annealing furnaces, the motor encoder cannot be replaced during a power outage. Therefore, an axial flow cooling fan can only be installed near the furnace roller motor to cool the furnace roller motor. Therefore, when this cooling fan fails or reaches the end of its service life, it needs to be replaced.

[0040] In some or certain embodiments, the frame-shaped hole 12 is a rectangular hole, and the length direction of the connecting member 11 is the length direction of the rectangular hole. The axis of the control rod 2 is also the length direction of the rectangular hole, which allows the control rod 2 to have more room to move. When in use, the tray 3 in the rectangular hole also has more room to move in terms of height space, which can accommodate the disassembly and replacement of cooling fans of different specifications.

[0041] In some or certain embodiments, the frame-shaped hole 12 of the support frame 1 may also be a diamond-shaped hole, for example, and the two connecting members 11 may also be arranged in parallel, so as to achieve the support and use of the support frame 1.

[0042] In some or certain embodiments, the two support members are a first support member 13 and a second support member 14 , the first support member 13 is threadedly engaged with the control rod 2 , and the support frame 1 further includes a reinforcing rib 15 connecting the second support member 14 and the connecting member 11 .

[0043] The two support members of the support frame 1 are divided into a first support member 13 and a second support member 14. The first support member 13 is threadedly engaged with the control rod 2. A reinforcing rib 15 is connected between the second support member 14 and the connecting member 11. While completing the movement of the control rod 2 relative to the first support member 13, the use strength of the support frame 1 is improved, which is conducive to the stable replacement of the cooling fan.

[0044] It should be noted that the first support member 13 and the second support member 14 may have the same structure, or the first support member 13 may be provided with a threaded hole for mating with the control rod 2, while the second support member 14 may not be provided with a threaded hole for mating with the control rod 2. In either case, the functions of the first support member 13 and the second support member 14 can be achieved. The relevant figures only illustrate the case where the first support member 13 and the second support member 14 have different structures.

[0045] In some or certain embodiments, both support members of the support frame 1 may be provided with threaded through holes 111 for threaded engagement with the control rod 2, and both support members may be provided with reinforcing ribs 15 for reinforcing the connection with the connecting member 11. This can also achieve the supporting function of the support frame 1 and facilitate the connection of the control rod 2.

[0046] In some or certain embodiments, the support frame 1 may also be a rectangular frame structure formed by alternating two connectors 11 and two support members, thereby enclosing a corresponding rectangular frame-shaped hole 12. The connection between the connectors 11 and the support members may be formed by a circular arc transition, and both the connectors 11 and the support members may be plate-shaped. This facilitates fabrication and reduces the overall space occupied by the support frame 1. The connectors 11 or the support members may also be rectangular parallelepiped-like structures.

[0047] In some or certain embodiments, the connecting member 11 is provided with a through hole 111 spaced apart from the tray 3 , and the furnace roller motor cooling fan replacement auxiliary device further includes: a fastener (not shown in the figure) used for the through hole 111 to compress the connecting member 11 .

[0048] The connector 11 is provided with a through hole 111 spaced apart from the tray 3. A fastener can be passed through the through hole 111 of the connector 11 to compress the connector 11. One end of the fastener can then pass through the connector 11 and be connected and fixed to a fixed device, etc. This facilitates the detachable connection and positioning of the connector 11 and the fixed device, etc., to fix the position of the support frame 1 so that the support frame 1 can perform its supporting and fixing function.

[0049] In some or certain embodiments, the fasteners may be bolts or screws, etc. This can achieve fixed connection and separation between the connector 11 and, for example, the bolt holes of the terminal box of the furnace roller motor, and the position of the support frame 1 is relatively stable.

[0050] It should be noted that the furnace roller motor is a system structure, and the junction box and other devices in the furnace roller motor typically have bolt holes or screw holes, etc. These bolt holes or screw holes can be used to mate with fasteners. Alternatively, the support frame 1 can be supported on fixed equipment related to the furnace roller motor, or the support frame 1 can be fixed to fixed equipment related to the furnace roller motor by spot welding. This can also achieve the positioning and support functions of the support frame 1 itself.

[0051] In some or certain embodiments, the through hole 111 is a strip-shaped hole extending in the length direction of the connector 11. The strip-shaped hole allows fasteners to pass through different positions of the strip-shaped hole and then press and secure the connector 11 to a fixed device such as a junction box, thereby improving the connection flexibility of the support frame 1.

[0052] In some or certain embodiments, each connecting member 11 may be provided with a strip-shaped hole. The supporting frame 1 can be flexibly connected to, for example, a terminal box of a furnace roller motor via fasteners and the strip-shaped holes.

[0053] Figure 3 It shows a left view of a furnace roller motor cooling fan replacement auxiliary device in some embodiments or certain embodiments of the present application, Figure 4A top view of a furnace roller motor cooling fan replacement auxiliary device in some embodiments or certain embodiments of the present application is shown, with reference to Figure 3 and Figure 4 In some or certain embodiments, the tray 3 may include:

[0054] Disc-shaped body 31 .

[0055] The two guide protrusions 32 are fixedly connected to the radial sides of the disc-shaped body 31 and are each provided with a guide groove 321 .

[0056] The disc-shaped body 31 of the tray 3 can be used to place and support the cooling fan. Guide protrusions 32 are fixedly connected on both sides of the disc-shaped body 31, and the guide protrusions 32 are each provided with a guide groove 321. The disc-shaped body 31 can be slidably mounted on the corresponding connecting piece 11 through the guide groove 321 of the guide protrusion 32, so that the tray 3 is driven to move by the control rod 2.

[0057] In some or certain embodiments, the guide protrusion 32 includes a plate-shaped L-shaped portion 322 and a guide portion 323. One end of the L-shaped portion 322 is fixedly connected to the disc-shaped body 31, and the other end of the L-shaped portion 322 is fixedly connected to the guide portion 323 and in sliding contact with the connector 11. The guide portion 323 is provided with a guide groove 321. With this intermediate structure of the guide protrusion 32, the disc-shaped body 31 can be more stably supported, which facilitates stable raising and lowering of the cooling fan.

[0058] In some or certain embodiments, the L-shaped portion 322 may be provided with at least two spaced-apart positioning protrusions 3221 for surrounding the tray 3. The positioning protrusions 3221 of the two L-shaped portions 322 on both sides of the disc-shaped body 31 cooperate to facilitate the positioning and fixing of the tray 3.

[0059] In some or certain embodiments, the axis of the control rod 2 extends along the axis of the tray 3, and a coaxial cylindrical placement groove 311 is provided at the end of the tray 3 away from the support end 21. The cooling fan can be placed in the cylindrical placement groove 311, which can ensure that the cooling fan moves up or down stably with the tray 3.

[0060] In some or certain embodiments, the other end of the control rod 2 is located outside the frame hole 12 and is in the shape of a hexagonal stud. The furnace roller motor cooling fan replacement auxiliary device also includes a handle 22 fixedly connected to the other end of the control rod 2.

[0061] The other end of the control lever 2 is located outside the frame-shaped hole 12 and is in the shape of a hexagonal stud. This can be used with a tool such as a wrench to rotate the control lever 2. This makes it easier to rotate the control lever 2, which helps improve the efficiency of cooling fan replacement. The handle 22 is located outside the other end of the control lever 2 and can be manually grasped to rotate the control lever 2. This makes the rotation of the control lever 2 more flexible and also helps improve the efficiency of cooling fan replacement.

[0062] In some or certain embodiments, the furnace roller motor cooling fan replacement auxiliary device further comprises:

[0063] The wear-resistant plate (not shown in the figure) is located between the support end 21 and the tray 3. The tray 3 is supported on the wear-resistant plate so as to be supported on the support end 21 through the wear-resistant plate.

[0064] The wear-resistant plate can extend the service life of the control rod 2 and the tray 3, and increase the number of times and service life of the furnace roller motor cooling fan replacement auxiliary device.

[0065] In some or certain embodiments, the support end 21 may also be provided with a washer, which can also play a role in extending the service life of the control rod 2 and the tray 3 to a certain extent.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0067] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0068] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A furnace roller motor cooling fan replacement auxiliary device, characterized in that: include: The supporting frame includes two connecting members and two supporting members that are alternately connected and enclose a frame-shaped hole, wherein the two connecting members are arranged side by side and their lengths extend in the same direction; A control rod passes through one of the support members and is threadedly engaged with the corresponding support member, wherein the axial direction of the control rod extends along the length direction of the connecting member and one end of the control rod is located in the frame-shaped hole to form a support end; The tray is provided with guide grooves on both sides, and the guide grooves are slidably mounted on the corresponding connecting pieces along the length direction of the connecting pieces, and one end of the tray is supported on the supporting end.

2. The furnace roller motor cooling fan replacement auxiliary device according to claim 1, characterized in that: The frame-shaped hole is a rectangular hole, and the length direction of the connecting piece is the length direction of the rectangular hole.

3. The furnace roller motor cooling fan replacement auxiliary device according to claim 1, characterized in that: The two support members are respectively a first support member and a second support member, the first support member is threadedly engaged with the control rod, and the support frame further includes a reinforcing rib connecting the second support member and the connecting member.

4. The furnace roller motor cooling fan replacement auxiliary device according to any one of claims 1 to 3, characterized in that: The connecting piece is provided with a through hole spaced apart from the tray, and the furnace roller motor cooling fan replacement auxiliary device further comprises: a fastener used for the through hole to press the connecting piece.

5. The furnace roller motor cooling fan replacement auxiliary device according to claim 4, characterized in that: The through hole is a strip-shaped hole whose length direction extends along the length direction of the connecting piece.

6. The furnace roller motor cooling fan replacement auxiliary device according to any one of claims 1 to 3, characterized in that: The tray comprises: disc-shaped body; The two guide protrusions are respectively fixedly connected to the radial sides of the disc-shaped body and are both provided with the guide groove.

7. The furnace roller motor cooling fan replacement auxiliary device according to claim 6, characterized in that: The guide protrusion includes an L-shaped portion and a guide portion, both of which are plate-shaped. One end of the L-shaped portion is fixedly connected to the disc-shaped body, and the other end of the L-shaped portion is fixedly connected to the guide portion and is in sliding contact with the connecting piece. The guide portion is provided with the guide groove.

8. The furnace roller motor cooling fan replacement auxiliary device according to any one of claims 1 to 3, characterized in that: The axis of the control rod extends along the axis of the tray, and a coaxial columnar placement groove is provided at one end of the tray away from the supporting end.

9. The furnace roller motor cooling fan replacement auxiliary device according to any one of claims 1 to 3, characterized in that: The other end of the control rod is located outside the frame-shaped hole and is in the shape of a hexagonal stud. The furnace roller motor cooling fan replacement auxiliary device also includes a handle fixedly connected to the other end of the control rod.

10. The furnace roller motor cooling fan replacement auxiliary device according to any one of claims 1 to 3, characterized in that: The furnace roller motor cooling fan replacement auxiliary device also includes: A wear-resistant plate is located between the support end and the tray, and the tray is supported on the wear-resistant plate so as to be supported on the support end through the wear-resistant plate.