Motor rotor preheating baking furnace

Abstract

The invention discloses a motor rotor preheating baking furnace, and relates to the technical field of rotor preheating, the motor rotor preheating baking furnace comprises a furnace body and a rotor main body, the front side of the furnace body is provided with a furnace door, the inner side of the furnace body is provided with a preheating unit, the lower side of the furnace body is fixedly connected with a bottom cover, and the rear side of the furnace body is fixedly connected with a rear cover; the left side of the furnace body is fixedly connected with an air heater, the upper side of the furnace body is fixedly connected with an exhaust pipe, the preheating unit comprises a rotating pipe, the rotating pipe is rotatably connected to the inner side of the furnace body, the upper end of the rotating pipe is fixedly connected with a fixed disc, and the upper side of the fixed disc is fixedly connected with a fixed rod. According to the preheating baking oven for the motor rotor, by arranging the oven body, the rotating pipe, the containing disc, the guide plate, the guide block, the mounting frame, the U-shaped pipe and the second air outlet head, the second air outlet head can be controlled to move up and down repeatedly while the rotor body is controlled to rotate, hot air is evenly distributed, and therefore the rotor body is baked more evenly.

Description

Technical Field

[0001] This invention relates to the field of rotor preheating technology, specifically to a motor rotor preheating and baking oven. Background Technology

[0002] The motor rotor is the rotating part of the electric motor, which works with the stator (the stationary part) to convert electrical energy into mechanical energy. During the production of the motor rotor, it is necessary to preheat and bake the rotor to ensure that the insulation material is dry, so as to avoid failures caused by residual moisture during subsequent impregnation or operation.

[0003] When preheating the motor rotor, hot air needs to be introduced into the inside of the oven. This hot air acts on the rotor surface, causing the moisture on the rotor surface to evaporate. However, if the hot air is only ventilated in one direction, some parts of the rotor will not be in sufficient contact with the hot air, resulting in uneven baking and thus affecting the processing quality of the rotor. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a motor rotor preheating and baking oven, which solves the problem of uneven hot air distribution when hot air is introduced into the oven body.

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

[0006] A motor rotor preheating and baking oven includes an oven body and a rotor body. An oven door is provided on the front side of the oven body, a preheating unit is provided on the inner side of the oven body, a bottom cover is fixedly connected to the lower side of the oven body, a rear cover is fixedly connected to the rear side of the oven body, a hot air blower is fixedly connected to the left side of the oven body, and an exhaust pipe is fixedly connected to the upper side of the oven body. The preheating unit includes a rotating tube rotatably connected to the inner side of the oven body. A fixing plate is fixedly connected to the upper end of the rotating tube, a fixing rod is fixedly connected to the upper side of the fixing plate, and a placement plate is fixedly connected to the upper end of the fixing rod. A baking assembly is provided on the inner wall of the oven body, which ensures that the rotor body is evenly baked. The rotor body is located on the upper side of the placement plate.

[0007] Preferably, the baking assembly includes two guide plates, which are fixedly connected to the inner wall of the oven body. Guide blocks are slidably connected to the outer sides of the two guide plates, and a swing plate is rotatably connected between the two guide blocks. A mounting frame is fixedly connected to the front side of the swing plate, and a connecting block is fixedly connected to the outer side of the mounting frame. A U-shaped tube is fixedly connected to the outer side of the connecting block, and multiple air outlets are fixedly connected to the side of the U-shaped tube near the rotor body.

[0008] Preferably, a bevel gear one is fixedly connected to the outer side of the rotating tube, a control rod is rotatably connected to the outer side of the furnace body, a bevel gear two that meshes with the bevel gear one is fixedly connected to the front end of the control rod, a rear block is fixedly connected to the rear side of the furnace body through the rear end of the control rod, an inclined plate two is rotatably connected to the rear side of the rear block, a bottom frame is fixedly connected to the lower side of the guide block, a lifting rod is fixedly connected to the upper side of the bottom frame, a rectangular hole is opened on the upper side of the swing plate, the upper end of the lifting rod passes through the upper side of the furnace body and is fixedly connected to the control block, a rear plate is fixedly connected to the lower side of the control block, and the inclined plate two is rotatably connected to the rear plate.

[0009] Preferably, a gear component one is fixedly connected to the outer side of the rotating tube, a rotating shaft is rotatably connected to the inner side of the furnace body, a gear component two that meshes with the gear component one is fixedly connected to the upper end of the rotating shaft, and an electric motor that drives the rotating shaft to rotate is fixedly connected to the lower side of the furnace body.

[0010] Preferably, two top blocks are fixedly connected to the upper side of the placement tray, and electric push rods are fixedly connected to the outer sides of the two top blocks. A clamping plate is fixedly connected to the outer end of the electric push rod. A through hole one is opened on the outer side of the clamping plate, and a through hole two is opened in the middle of the placement tray.

[0011] Preferably, two mounting blocks are fixedly connected to the upper side of the fixed plate, and a fixed pipe is fixedly connected between the two mounting blocks. An air outlet is fixedly connected to the upper side of the fixed pipe, and a connecting pipe is fixedly connected to the lower side of the fixed pipe. The connecting pipe communicates with the rotating pipe. A bottom pipe is fixedly connected to the lower side of the furnace body. The bottom pipe communicates with the rotating pipe. A connecting hose is fixedly connected between the bottom pipe and the U-shaped pipe. A conveying pipe is fixedly connected between the hot air blower and the connecting hose.

[0012] Preferably, a rotating block is fixedly connected to the upper side of the swing plate, an inclined plate is rotatably connected to the outer side of the rotating block, and an installation rod is fixedly connected to the outer side of the inclined plate, the installation rod being rotatably connected to the guide plate.

[0013] Preferably, a vertical plate is fixedly connected to the upper side of the mounting frame, a U-shaped plate is fixedly connected to the front side of the vertical plate, two mounting plates are fixedly connected to the front side of the U-shaped plate, a branch pipe is rotatably connected between the two mounting plates, an air outlet three is fixedly connected to the lower side of the branch pipe, a distribution pipe is fixedly connected to the outer side of the branch pipe, and a connecting hose two is fixedly connected between the distribution pipe and the connecting hose one.

[0014] This invention provides a motor rotor preheating and baking oven. Compared with the prior art, it has the following advantages:

[0015] (1) The motor rotor preheating oven, by setting up the oven body, rotating tube, placement plate, guide plate, guide block, mounting frame, U-shaped tube, and air outlet head 2, can control the rotation of the rotor body while controlling the air outlet head 2 to move up and down repeatedly, so that the hot air is evenly distributed, thereby making the rotor body more evenly baked.

[0016] (2) The motor rotor preheating oven can bake the upper side of the rotor body by setting up a swing plate, a vertical plate, a U-shaped plate, a branch pipe and a third air outlet. It can also control the repeated swinging of the third air outlet and the second air outlet to make the airflow distribution more uniform and the baking effect better.

[0017] (3) The motor rotor preheating oven, by setting a fixed plate, a fixed pipe, an air outlet, a placement plate, and a through hole, can bake the bottom of the rotor body, making the baking direction more diverse, thereby enhancing the comprehensiveness of the rotor body baking. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a partial three-dimensional structural diagram of the present invention;

[0020] Figure 3 This is a partial first-view perspective three-dimensional structural diagram of the baking component in this invention;

[0021] Figure 4 This is a partial second-view perspective three-dimensional structural diagram of the baking component in this invention;

[0022] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0023] Figure 6 This is a partial third-view perspective perspective view of the baking assembly in this invention;

[0024] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0025] Figure 8 This is a cross-sectional perspective view of the placement disk in this invention.

[0026] In the diagram: 1. Furnace body; 2. Bottom cover; 3. Rear cover; 4. Furnace door; 5. Preheating unit; 6. Rotor body; 7. Hot air blower; 8. Exhaust pipe; 51. Rotary tube; 52. Fixing plate; 53. Fixing rod; 54. Placement plate; 55. Baking assembly; 56. Top block; 57. Electric push rod; 58. Clamping plate; 59. Motor; 510. Through hole one; 511. Through hole two; 512. Mounting block; 513. Fixing pipe; 514. Gas outlet one; 515. Connecting pipe; 551. Guide plate; 552. Guide block; 553. Swinging plate; 554. Rectangular hole; 555. Mounting frame; 556. Connecting block; 557. U-shaped tube; 558. Gas outlet two; 55 9. Base frame; 5510. Lifting rod; 5511. Control block; 5512. Rear plate; 5513. Rotating block one; 5514. Inclined plate one; 5515. Mounting rod; 5516. Gear component one; 5517. Gear component two; 5518. Rotating shaft; 5519. Bevel gear one; 5520. Bevel gear two; 5521. Control rod; 5522. Rear block; 5523. Inclined plate two; 5524. Bottom tube; 5525. Connecting hose one; 5526. Conveying pipe; 5527. Vertical plate; 5528. U-shaped plate; 5529. Mounting plate; 5530. Branch pipe; 5531. Air outlet three; 5532. Distribution pipe; 5533. Connecting hose two. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] This invention provides the following technical solutions:

[0029] Example 1

[0030] Please see Figure 1 - Figure 6 , Figure 8A motor rotor preheating and baking oven includes an oven body 1 and a rotor body 6. An oven door 4 is provided on the front side of the oven body 1. A preheating unit 5 is provided on the inner side of the oven body 1. A bottom cover 2 is fixedly connected to the lower side of the oven body 1. A rear cover 3 is fixedly connected to the rear side of the oven body 1. A hot air blower 7 is fixedly connected to the left side of the oven body 1. An exhaust pipe 8 is fixedly connected to the upper side of the oven body 1. The preheating unit 5 includes a rotating pipe 51, which is rotatably connected to the inner side of the oven body 1. A fixing plate 52 is fixedly connected to the upper end of the rotating pipe 51. A fixing rod 53 is fixedly connected to the upper side of the fixing plate 52. A placement plate 54 is fixedly connected to the upper end of the fixing rod 53. A baking assembly 55 is provided on the inner wall of the oven body 1. The baking assembly 55 makes the rotor body 6 evenly baked. The rotor body 6 is located on the upper side of the placement plate 54. The bottom cover 2 is provided to protect the internal motor 59.

[0031] The baking assembly 55 includes two guide plates 551, which are fixedly connected to the inner wall of the oven body 1. Guide blocks 552 are slidably connected to the outer sides of each guide plate 551. A swing plate 553 is rotatably connected between the two guide blocks 552. A mounting frame 555 is fixedly connected to the front side of the swing plate 553. A connecting block 556 is fixedly connected to the outer side of the mounting frame 555. A U-shaped tube 557 is fixedly connected to the outer side of the connecting block 556. Multiple air outlets 558 are fixedly connected to the side of the U-shaped tube 557 closest to the rotor body 6. The outer side of the rotating tube 51 is fixedly connected to... A bevel gear 5519 is connected to the furnace body 1. A control rod 5521 is rotatably connected to the outer side of the furnace body 1. A bevel gear 5520, which meshes with the bevel gear 5519, is fixedly connected to the front end of the control rod 5521. A rear block 5522 is fixedly connected to the rear side of the rear block 5522. An inclined plate 5523 is rotatably connected to the rear side of the rear block 5522. A bottom frame 559 is fixedly connected to the lower side of the guide block 552. A lifting rod 5510 is fixedly connected to the upper side of the bottom frame 559. A rectangular hole 554 is opened on the upper side of the swing plate 553. The lifting rod 5510... The upper end of 510 passes through the upper side of the furnace body 1 and is fixedly connected to a control block 5511. The lower side of the control block 5511 is fixedly connected to a rear plate 5512. The second inclined plate 5523 is rotatably connected to the rear plate 5512. The outer side of the rotating tube 51 is fixedly connected to a gear component 5516. The inner side of the furnace body 1 is rotatably connected to a rotating shaft 5518. The upper end of the rotating shaft 5518 is fixedly connected to a gear component 5517 that meshes with the gear component 5516. The lower side of the furnace body 1 is fixedly connected to a motor 59 that drives the rotating shaft 5518 to rotate. The upper side of the fixed plate 52 is fixedly connected to... There are two mounting blocks 512 fixedly connected to the fixed connection. A fixed pipe 513 is fixedly connected between the two mounting blocks 512. An air outlet 514 is fixedly connected to the upper side of the fixed pipe 513. A connecting pipe 515 is fixedly connected to the lower side of the fixed pipe 513. The connecting pipe 515 is connected to the rotating pipe 51. A bottom pipe 5524 is fixedly connected to the lower side of the furnace body 1. The bottom pipe 5524 is connected to the rotating pipe 51. A connecting hose 5525 is fixedly connected between the bottom pipe 5524 and the U-shaped pipe 557. A conveying pipe 5526 is fixedly connected between the hot air blower 7 and the connecting hose 5525.

[0032] During the baking of the rotor body 6, the motor 59 is started to drive the rotating shaft 5518 to rotate. The rotating shaft 5518 drives the gear component 2 5517 to rotate, the gear component 2 5517 drives the gear component 1 5516 to rotate, the gear component 1 5516 drives the rotating tube 51 to rotate, the rotating tube 51 drives the fixed plate 52 to rotate, the fixed plate 52 drives the fixed rod 53 to rotate, and the fixed rod 53 drives the placement plate 54 to rotate, so that the placement plate 54 drives the rotor body 6 to rotate, which facilitates the subsequent baking. At the same time, the rotating tube 51 drives the bevel gear 1 5519 to rotate, the bevel gear 1 5519 drives the bevel gear 2 5520 to rotate, the bevel gear 2 5520 drives the control rod 5521 to rotate, and the control rod 5521 drives the rear block 5522 to rotate. The inclined plate 5523 rotates, which in turn drives the rear plate 5512 to move up and down repeatedly. The rear plate 5512 drives the control block 5511 to move, which in turn drives the lifting rod 5510 to move up and down repeatedly. The lifting rod 5510 drives the bottom frame 559 to move up and down repeatedly, which in turn drives the guide block 552 to move up and down repeatedly. The guide block 552 drives the mounting frame 555 to move up and down repeatedly, which in turn drives the U-shaped tube 557 to move up and down repeatedly. The hot air blower 7 is started, and under the action of the conveying pipe 5526 and the connecting hose 5525, the hot air jet from the outlet 558 acts on the outer surface of the rotor body 6. At the same time, the outlet 558 is controlled to move up and down repeatedly to increase the uniformity of airflow distribution.

[0033] When baking the rotor body 6, hot air is introduced into the rotor tube 51 through the bottom pipe 5524 via the hot air blower 7 and the connecting hose 5525. The air is then sprayed out from multiple air outlets 514 through the connecting pipe 515 and the fixed pipe 513, which facilitates baking the bottom of the rotor body 6.

[0034] Two top blocks 56 are fixedly connected to the upper side of the placement tray 54. Electric push rods 57 are fixedly connected to the outer sides of the two top blocks 56. Clamping plates 58 are fixedly connected to the outer ends of the electric push rods 57. Through holes 510 are opened on the outer side of the clamping plates 58. Through holes 511 are opened in the middle of the placement tray 54. When baking the rotor body 6, the rotor body 6 is first placed on the placement tray 54. Then, the electric push rods 57 are controlled to drive the clamping plates 58 to move. The clamping plates 58 on both sides clamp and limit the rotor body 6. Through holes 510 and 511, the rotor body 6 is conveniently heated and baked.

[0035] Example 2

[0036] Based on Example 1, such as Figure 4 , Figure 7As shown, a motor rotor preheating and baking oven includes an oven body 1 and a rotor body 6. An oven door 4 is provided on the front side of the oven body 1, a preheating unit 5 is provided on the inner side of the oven body 1, a bottom cover 2 is fixedly connected to the lower side of the oven body 1, a rear cover 3 is fixedly connected to the rear side of the oven body 1, a hot air blower 7 is fixedly connected to the left side of the oven body 1, and an exhaust pipe 8 is fixedly connected to the upper side of the oven body 1. The preheating unit 5 includes a rotating pipe 51, which is rotatably connected to the inner side of the oven body 1. A fixing plate 52 is fixedly connected to the upper end of the rotating pipe 51, a fixing rod 53 is fixedly connected to the upper side of the fixing plate 52, and a placement plate 54 is fixedly connected to the upper end of the fixing rod 53. A baking assembly 55 is provided on the inner wall of the oven body 1. The baking assembly 55 makes the rotor body 6 evenly baked, and the rotor body 6 is located on the upper side of the placement plate 54.

[0037] A rotating block 5513 is fixedly connected to the upper side of the swing plate 553. An inclined plate 5514 is rotatably connected to the outer side of the rotating block 5513. An installation rod 5515 is fixedly connected to the outer side of the inclined plate 5514. The installation rod 5515 is rotatably connected to the guide plate 551. The guide block 552 moves up and down repeatedly, causing the guide block 552 to drive the swing plate 553 to move up and down repeatedly. Under the action of the inclined plate 5514, the swing plate 553 swings repeatedly. The swing plate 553 drives the installation frame 555 to swing repeatedly, which facilitates the control of the swing of the air outlet head 558 and increases the uniformity of the airflow.

[0038] A vertical plate 5527 is fixedly connected to the upper side of the mounting frame 555. A U-shaped plate 5528 is fixedly connected to the front side of the vertical plate 5527. Two mounting plates 5529 are fixedly connected to the front side of the U-shaped plate 5528. A branch pipe 5530 is rotatably connected between the two mounting plates 5529. An air outlet 5531 is fixedly connected to the lower side of the branch pipe 5530. A distribution pipe 5532 is fixedly connected to the outer side of the branch pipe 5530. A connecting hose 5533 is fixedly connected between the distribution pipe 5532 and the connecting hose 5525. During baking, the airflow from multiple air outlets 5531 acts on the upper side of the rotor body 6 through the connecting hose 5533, the distribution pipe 5532, and the branch pipe 5530, facilitating the baking operation on the upper side of the rotor body 6.

[0039] Working principle: In use, the rotor body 6 is placed on the placement plate 54. Then, the electric push rod 57 is controlled to move the clamping plate 58, which limits the rotor body 6. Then, the hot air blower 7 is started, causing the delivery pipe 5526, connecting hose 1 5525, and U-shaped pipe 557 to spray air from multiple air outlets 2 558. At the same time, the motor 59 is started to drive the rotating shaft 5518 to rotate. Under the action of gear 2 5517 and gear 1 5516, the rotating pipe 51 rotates. The rotating pipe 51 drives the fixed plate 52 to rotate. The fixed plate 52 drives the placement plate 54 on the fixed rod 53 to rotate. The placement plate 54 drives the rotor body 6 to rotate. At the same time, under the action of bevel gear 1 5519 and bevel gear 2 5520, the control rod 55... 21 rotates, the control lever 5521 and the rear block 5522 rotate, the rear block 5522 drives the second inclined plate 5523 to rotate, under the action of the rear plate 5512, the control block 5511 and the lifting rod 5510, the guide block 552 on the control base frame 559 moves up and down repeatedly, the guide block 552 drives the U-shaped tube 557 on the mounting frame 555 to move up and down repeatedly, so that the hot air is evenly distributed. At the same time, under the action of the first inclined plate 5514, the second air outlet 558 swings. At the same time, under the action of the second connecting hose 5533, the distribution pipe 5532 and the branch pipe 5530, multiple third air outlets 5531 spray airflow onto the top of the rotor body 6. At the same time, the fixed pipe 513 and the first air outlet 514 facilitate the baking of the bottom of the rotor body 6.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A motor rotor preheating and baking oven, comprising an oven body (1) and a rotor body (6), characterized in that: A furnace door (4) is provided on the front side of the furnace body (1). A preheating unit (5) is provided on the inner side of the furnace body (1). A bottom cover (2) is fixedly connected to the lower side of the furnace body (1). A rear cover (3) is fixedly connected to the rear side of the furnace body (1). A hot air blower (7) is fixedly connected to the left side of the furnace body (1). An exhaust pipe (8) is fixedly connected to the upper side of the furnace body (1). The preheating unit (5) includes a rotating pipe (51). The rotating pipe (51) is rotatably connected to the inner side of the furnace body (1). A fixed plate (52) is fixedly connected to the upper end of the rotating pipe (51). A fixed rod (53) is fixedly connected to the upper side of the fixed plate (52). A placement plate (54) is fixedly connected to the upper end of the fixed rod (53). A baking assembly (55) is provided on the inner wall of the furnace body (1). The baking assembly (55) makes the rotor body (6) evenly baked. The rotor body (6) is located on the upper side of the placement plate (54).

2. The motor rotor preheating and baking oven according to claim 1, characterized in that: The baking assembly (55) includes two guide plates (551), which are fixedly connected to the inner wall of the oven body (1). Guide blocks (552) are slidably connected to the outer sides of the two guide plates (551). A swing plate (553) is rotatably connected between the two guide blocks (552). A mounting frame (555) is fixedly connected to the front side of the swing plate (553). A connecting block (556) is fixedly connected to the outer side of the mounting frame (555). A U-shaped tube (557) is fixedly connected to the outer side of the connecting block (556). A plurality of air outlet heads (558) are fixedly connected to the side of the U-shaped tube (557) near the rotor body (6).

3. The motor rotor preheating and baking oven according to claim 2, characterized in that: A bevel gear one (5519) is fixedly connected to the outer side of the rotating tube (51), and a control rod (5521) is rotatably connected to the outer side of the furnace body (1). A bevel gear two (5520) that meshes with the bevel gear one (5519) is fixedly connected to the front end of the control rod (5521). A rear block (5522) is fixedly connected to the rear side of the furnace body (1) through the rear end of the control rod (5521). An inclined plate two (5523) is rotatably connected to the rear side of the rear block (5522). The guide... A bottom frame (559) is fixedly connected to the lower side of the block (552), and a lifting rod (5510) is fixedly connected to the upper side of the bottom frame (559). A rectangular hole (554) is opened on the upper side of the swing plate (553). The upper end of the lifting rod (5510) passes through the upper side of the furnace body (1) and is fixedly connected to a control block (5511). A rear plate (5512) is fixedly connected to the lower side of the control block (5511). The inclined plate (5523) is rotatably connected to the rear plate (5512).

4. The motor rotor preheating and baking oven according to claim 1, characterized in that: A gear component (5516) is fixedly connected to the outer side of the rotating tube (51), and a rotating shaft (5518) is rotatably connected to the inner side of the furnace body (1). A gear component (5517) that meshes with the gear component (5516) is fixedly connected to the upper end of the rotating shaft (5518), and a motor (59) that drives the rotating shaft (5518) to rotate is fixedly connected to the lower side of the furnace body (1).

5. The motor rotor preheating and baking oven according to claim 1, characterized in that: Two top blocks (56) are fixedly connected to the upper side of the placement tray (54). Electric push rods (57) are fixedly connected to the outer sides of the two top blocks (56). A clamping plate (58) is fixedly connected to the outer end of the electric push rod (57). A through hole (510) is opened on the outer side of the clamping plate (58). A through hole (511) is opened in the middle of the placement tray (54).

6. The motor rotor preheating and baking oven according to claim 2, characterized in that: Two mounting blocks (512) are fixedly connected to the upper side of the fixed plate (52), and a fixed pipe (513) is fixedly connected between the two mounting blocks (512). An air outlet (514) is fixedly connected to the upper side of the fixed pipe (513), and a connecting pipe (515) is fixedly connected to the lower side of the fixed pipe (513). The connecting pipe (515) is connected to the rotating pipe (51). A bottom pipe (5524) is fixedly connected to the lower side of the furnace body (1). The bottom pipe (5524) is connected to the rotating pipe (51). A connecting hose (5525) is fixedly connected between the bottom pipe (5524) and the U-shaped pipe (557). A conveying pipe (5526) is fixedly connected between the hot air blower (7) and the connecting hose (5525).

7. A motor rotor preheating and baking oven according to claim 2, characterized in that: The upper side of the swing plate (553) is fixedly connected to a rotating block (5513), and the outer side of the rotating block (5513) is rotatably connected to an inclined plate (5514). The outer side of the inclined plate (5514) is fixedly connected to an installation rod (5515), and the installation rod (5515) is rotatably connected to the guide plate (551).

8. A motor rotor preheating and baking oven according to claim 6, characterized in that: A vertical plate (5527) is fixedly connected to the upper side of the mounting frame (555), a U-shaped plate (5528) is fixedly connected to the front side of the vertical plate (5527), two mounting plates (5529) are fixedly connected to the front side of the U-shaped plate (5528), a branch pipe (5530) is rotatably connected between the two mounting plates (5529), an air outlet head three (5531) is fixedly connected to the lower side of the branch pipe (5530), a distribution pipe (5532) is fixedly connected to the outer side of the branch pipe (5530), and a connecting hose two (5533) is fixedly connected between the distribution pipe (5532) and the connecting hose one (5525).

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