High-temperature-resistant square motor for oven

Abstract

The invention relates to the technical field of motors, in particular to a high-temperature-resistant square motor for an oven. The device comprises a transmission assembly, a reduction gear set is arranged in the transmission assembly, a clutch device is arranged above the reduction gear set, the reduction gear set drives the clutch device to rotate, an adjusting assembly is arranged above the clutch device, and the clutch device drives the adjusting assembly to slide up and down when rotating reversely. When the clutch device rotates, the adjusting assembly drives the baking tray to rotate in the center of the gridiron. Speed reduction and torque amplification are carried out through rotation of the magnetic core through the reduction gear set, power is transmitted to the connecting base from the magnetic core and then transmitted to the baking tray through the groove sleeve and the connecting core, when the magnetic core rotates, the connecting base is driven to rotate through the reduction gear set, then the spring lock tongue is extruded, and connection and separation of the clutch device are controlled; the clutch device rotates to drive the adjusting assembly, and then the baking tray and the gridiron are controlled to move up and down or rotate in the oven so as to meet different baking requirements.

Description

Technical Field

[0001] The invention relates to the technical field of motors, in particular to a high-temperature resistant square motor for an oven. Background Art

[0002] Oven motors usually use brushless DC motor technology, which has the advantages of small size, high energy efficiency and precise operation control. Brushless DC motors switch magnetic fields electronically to achieve rotor rotation. Compared with traditional brushed motors, they have higher efficiency and longer service life. In high temperature environments, this motor can be accurately controlled and will not fail even in high temperature and electromagnetic interference environments. Compared with the round motors used in traditional ovens, square motors can customize the movement stroke according to user needs, so they can be thin and light while maintaining high performance, which is more in line with the design trend of modern equipment being thin and light. Some square motors used in ovens can realize the function of rotating to drive the food to rotate, so that the inside of the food oven is evenly heated, but in practice, the size of the baked food varies, so that the distance from the heat source varies, which will affect the final baking effect. It can be seen that square motors with only rotation function cannot meet higher baking needs. Summary of the invention

[0003] The object of the present invention is to provide a high temperature resistant square motor for an oven to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, a high-temperature resistant square motor for an oven is provided, comprising a transmission component, a reduction gear group is arranged inside the transmission component, a clutch device is arranged above the reduction gear group, and the reduction gear group drives the clutch device to rotate, and is characterized in that: an adjustment component is arranged above the clutch device, and the adjustment component is driven to slide up and down when the clutch device rotates in the opposite direction, a baking tray is arranged above the adjustment component, and a grill is arranged on the outside of the baking tray, and the baking tray is driven to rotate at the center of the grill through the adjustment component when the clutch device rotates, and the grill and the baking tray are driven to slide up and down through the adjustment component when the clutch device rotates in the same direction, and an injection cylinder is arranged on one side of the adjustment cylinder, and the injection cylinder is squeezed when the adjustment assembly slides up and down, so that the injection cylinder injects lubricating oil into the interior of the transmission component.

[0005] As a further improvement of the technical solution, an oven shell is provided on the outside of the grill, and an upper chamber and a lower chamber are provided on the upper and lower parts of the oven shell, and the two chambers are separated by a partition, and the transmission assembly includes a bottom shell, which is fixedly installed in the lower chamber, and the grill and the baking tray are arranged in the upper chamber.

[0006] As a further improvement of the present technical solution, an upper cover is installed above the bottom shell, and the adjustment assembly includes two sliding seats installed above the upper cover. A sliding column is slidingly arranged inside the sliding seat, and the top of the sliding column passes through the partition and is connected to the baking tray. When the sliding column slides up and down, it drives the grill and the baking tray to slide up and down inside the oven shell.

[0007] As a further improvement of the technical solution, a limit frame is arranged above the two slide seats, and both sides of the limit frame are sleeved on the slide seats. A groove drum is rotatably installed inside the limit frame, and an annular groove is obliquely opened on the side wall of the groove drum. A sliding pin is fixedly installed on the side wall of one of the limit frames, and one end of the sliding pin close to the groove drum is clamped in the annular groove. When the groove drum rotates, it squeezes the side wall of the sliding pin, causing the sliding pin to slide along the annular groove, thereby driving the sliding column to reciprocate up and down.

[0008] As a further improvement of the present technical solution, a magnetic core is rotatably installed at the bottom of the bottom shell, and a reduction gear group is arranged above the magnetic core. The reduction gear group is composed of a number of gears of different sizes, wherein the number of teeth of the gears located at the bottom is smaller than the number of teeth of the gears located at the top, and the rotating shaft of the magnetic core is connected to the bottom of the reduction gear group, and the reduction gear group amplifies the power generated by the rotation of the rotating shaft of the magnetic core.

[0009] As a further improvement of the present technical solution, a clutch device is arranged above the reduction gear group, and the clutch device includes a connecting seat fixedly connected to the top of the reduction gear group, and the outer sleeve of the connecting seat is provided with a protective shell, and a plurality of inner teeth are arranged on the inner side wall of the protective shell, and the inner teeth are arranged in a wedge shape. A spring lock tongue is slidably installed above the connecting seat, and one end of the spring lock tongue away from the center of the connecting seat is clamped between two inner teeth. When the magnetic core rotates, the connecting seat is driven to rotate by the reduction gear group, and the spring lock tongue is squeezed toward the center of the connecting seat. When the magnetic core rotates in the opposite direction, the protective shell is driven to rotate by the spring lock tongue.

[0010] As a further improvement of the present technical solution, a groove sleeve is fixedly installed on the top of the connecting seat, and the outer sleeve of the groove sleeve is provided with a connecting sleeve. The bottom of the connecting sleeve is fixedly connected to the upper side of the protective shell, and the top of the connecting sleeve passes through the groove cylinder and is fixedly connected to the bottom of the groove cylinder. The rotation of the protective shell drives the groove cylinder to rotate through the connecting sleeve.

[0011] As a further improvement of the present technical solution, a connecting core is slidably arranged inside the groove sleeve, the top of the connecting core is fixedly connected to the baking tray, a plurality of splines are fixedly installed on the side wall of the connecting core, a plurality of spline grooves are opened on the inner side wall of the groove sleeve, and when the connecting seat rotates, the connecting core and the baking tray are driven to rotate through the groove sleeve.

[0012] As a further improvement of the technical solution, a T-shaped pressure rod is fixedly installed between the two sliding columns, and the injection cylinder is installed below the T-shaped pressure rod. When the sliding column slides up and down, it drives the T-shaped pressure rod to squeeze the piston rod of the injection cylinder downward. The lower end of the injection cylinder passes through the upper cover and is connected to the interior of the reduction gear group. The injection cylinder injects lubricating oil into the surface of the protective shell, and the lubricating oil flows through the protective shell to between several gears of the reduction gear group.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In the high-temperature resistant square motor used in the oven, the reduction gear set drives the connecting seat to rotate, thereby squeezing the spring lock tongue to control the engagement and separation of the clutch device. The rotation of the clutch device drives the adjustment component, thereby controlling the baking tray and the grill to move up and down or rotate inside the oven. The different rotation modes of the square motor can drive the food on the baking tray to rotate and adjust the distance from the heat source according to actual needs, making the square motor more flexible when used.

[0015] 2. In the high-temperature resistant square motor used in the oven, the reduction gear set is coated with high-temperature grease during assembly. When the slide column slides up and down, the T-shaped pressure rod squeezes the injection cylinder to inject the lubricating oil into the surface of the protective shell, and then flows between the gears of the reduction gear set to achieve continuous lubrication of the gears. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the installation position structure of the present invention;

[0017] Figure 2 This is one of the schematic diagrams of the shelling structure of the present invention;

[0018] Figure 3 This is the second schematic diagram of the shelling structure of the present invention;

[0019] Figure 4 It is one of the overall structural schematic diagrams of the present invention;

[0020] Figure 5 This is the second schematic diagram of the overall structure of the present invention;

[0021] Figure 6 It is a schematic diagram of the connection between the transmission assembly and the adjustment assembly of the present invention;

[0022] Figure 7 It is a schematic diagram of the exploded connection between the transmission assembly and the adjustment assembly of the present invention;

[0023] Figure 8 It is one of the cross-sectional schematic diagrams of the clutch device structure of the present invention;

[0024] Fig. 9 This is the second schematic cross-sectional view of the clutch structure of the present invention.

[0025] The meaning of each number in the figure is:

[0026] 1. Transmission assembly; 11. Reduction gear set; 12. Clutch device; 121. Protective shell; 122. Internal teeth; 123. Connecting seat; 124. Spring lock tongue; 13. Magnetic core; 14. Groove sleeve; 15. Connecting sleeve; 16. Upper cover; 17. Bottom shell; 18. Connecting core;

[0027] 2. Adjustment assembly; 21. Grooved cylinder; 211. Ring groove; 22. Sliding pin; 23. Sliding column; 24. Limiting frame; 25. Sliding seat; 26. T-shaped pressure rod;

[0028] 3. Oven shell; 4. Grill rack; 5. Baking tray; 6. Injection barrel. 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] Example 1

[0032] See also Figure 1-Figure 9As shown, the purpose of this embodiment is to provide a high-temperature resistant square motor for an oven, including a transmission component 1, which is the core part of the motor and is responsible for converting electrical energy into mechanical energy. The transmission component 1 is made of high-temperature resistant insulating material and can operate safely in a high-temperature environment without aging or burning. This design ensures the stability and durability of the motor in high-temperature equipment such as ovens, while also improving the working efficiency and safety of the oven. A reduction gear set 11 is provided inside the transmission component 1 to reduce the speed and increase the torque. This reduction mechanism enables the motor to run at a lower speed while providing greater power to drive the mechanical parts in the oven. When assembling the motor, high-temperature resistant lubricating oil is applied to the reduction gear set 11 to play a lubricating role, which greatly improves the temperature resistance of the motor, can adapt to more complex use environments, and has better applicability. A clutch device 12 is provided above the reduction gear set 11. The reduction gear The group 11 drives the clutch device 12 to rotate. An adjusting component 2 is arranged above the clutch device 12. When the clutch device 12 rotates in the opposite direction, the adjusting component 2 is driven to slide up and down. A baking tray 5 is arranged above the adjusting component 2. The outer sleeve of the baking tray 5 is provided with a grill 4. When the clutch device 12 rotates, the baking tray 5 is driven to rotate at the center of the grill 4 through the adjusting component 2. When the clutch device 12 rotates in the opposite direction, the grill 4 and the baking tray 5 are driven to slide up and down through the adjusting component 2. When the clutch device 12 rotates, the baking tray 5 is driven to rotate at the center of the grill 4 through the adjusting component 2, or the grill 4 and the baking tray 5 are driven to slide up and down when necessary to meet different baking needs. An injection cylinder 6 is arranged on one side of the adjusting component 2. When the adjusting component 2 slides up and down, the injection cylinder 6 is squeezed to make the injection cylinder 6 inject lubricating oil into the interior of the transmission component 1. This automatic lubrication system helps to reduce the wear of the reduction gear group 11 in a high temperature environment and improve its service life and performance.

[0033] The grill 4 is provided with an oven shell 3 on the outside. The oven shell 3 is provided with an upper chamber and a lower chamber on the upper and lower parts. The two chambers are separated by a partition. The oven shell 3 is a protective layer of the entire oven. It not only provides a solid external structure, but also helps to maintain the high temperature environment inside the oven. The upper and lower parts of the oven shell 3 are provided with an upper chamber and a lower chamber respectively. This design helps to isolate different functional areas and improve the thermal efficiency and operational safety of the oven. By using a partition to separate the two chambers, heat and oil smoke can be prevented from directly circulating between the chambers, thereby protecting the motor and other sensitive components from damage by high temperature and oil smoke. The transmission group Component 1 includes a bottom shell 17, which is fixedly installed in the lower chamber. The bottom shell 17 is usually made of high-temperature resistant material to withstand the high temperature environment inside the oven, while providing sufficient mechanical strength to support the motor and other components. Such a design helps to improve the working efficiency and safety of the oven, while also ensuring the durability and reliability of the motor. The grill 4 and the baking tray 5 are arranged in the upper chamber. They are the main cooking components of the oven and are used to support food, while the baking tray 5 is located above the lower chamber. This layout allows the food to be evenly heated inside the oven while avoiding direct contact with the heating elements, thereby improving the safety and efficiency of cooking.

[0034] An upper cover 16 is installed above the bottom shell 17, which covers the top of the motor, protects the internal components and provides sealing. The design of the upper cover 16 helps to prevent heat and oil smoke from damaging the internal components of the motor, and also helps to maintain a high temperature environment inside the oven. The use of the upper cover 16 improves the overall performance and efficiency of the oven, and also protects the motor from the influence of the external environment. The adjustment component 2 includes two slides 25 installed above the upper cover 16. The slide 25 is internally provided with a slide column 23. The slide 25 is designed to support and guide the slide column 23 to slide up and down to ensure its stability during operation. The slide 25 is internally provided with a slide column 23. This design allows the slide post 23 to slide freely inside the slide seat 25, thereby achieving precise adjustment and control. The top of the slide post 23 passes through the partition and is connected to the baking tray 5. When the slide post 23 slides up and down, it drives the grill 4 and the baking tray 5 to slide up and down inside the oven shell 3. When the post slides up and down, it drives the baking tray 5 to rotate in the center of the grill 4, or slide up and down when needed, to adapt to different baking heights and temperature requirements. This design allows the baking tray 5 to rotate in the center of the grill 4 to achieve uniform heating, and also to slide up and down when needed to adapt to different baking requirements. This design not only improves the cooking effect of the oven, but also makes the operation of the oven more flexible and convenient.

[0035] A limit frame 24 is arranged above the two slide seats 25, and both sides of the limit frame 24 are sleeved on the slide seats 25. The limit frame 24 is designed to limit the movement range of the slide post 23 to ensure that it does not exceed the predetermined position when sliding up and down, thereby ensuring the accuracy and safety of the motor drive system. This design helps to improve the stability and reliability of the oven and avoid damage or failure caused by excessive movement of the slide post 23. The internal rotation of the limit frame 24 is equipped with a groove drum 21, and the rotation of the groove drum 21 is achieved by the sliding of the slide post 23. This design enables the slide post 23 to reciprocate up and down, thereby driving the baking tray 5 and the grill 4 to move up and down inside the oven to meet different baking needs. This precise control mechanism helps to achieve uniform temperature distribution inside the oven and uniform baking of food. An annular groove 211 is obliquely opened on the side wall of the groove drum 21, and a sliding pin 22 is fixedly installed on the side wall of a limit frame 24. The end of the sliding pin 22 close to the groove drum 21 is clamped in the annular groove 211. When the groove drum 21 rotates, the side wall of the sliding pin 22 is squeezed to slide along the annular groove 211. This design allows the sliding column 23 to reciprocate up and down under the drive of the groove drum 21, thereby driving the baking tray 5 and the grill 4 to slide up and down inside the oven. This mechanism not only improves the versatility of the oven, but also makes the baking process more flexible and controllable, which helps to achieve various baking modes and improve the baking quality.

[0036] A magnetic core 13 is rotatably installed at the bottom of the bottom shell 17. As the core component of the motor, it is responsible for generating a rotating magnetic field, thereby driving the operation of the clutch device 12. A reduction gear set 11 is arranged above the magnetic core 13. The reduction gear set 11 is composed of a number of gears of different sizes, wherein the number of teeth of the gears located at the bottom is smaller than the number of teeth of the gears located at the top. Such a design enables the gear set to convert the high-speed rotation of the magnetic core 13 into a low-speed rotation, while increasing the torque. Such a deceleration and torque amplification design helps to improve the driving efficiency of the mechanical parts inside the oven, making the operation of the oven more stable and powerful. The rotating shaft of the magnetic core 13 is connected to the bottom of the reduction gear set 11. The reduction gear set 11 amplifies the power generated by the rotation of the rotating shaft of the magnetic core 13, so that the oven uses the motor to provide greater power when running at a low speed. This is particularly important for driving heavy parts inside the oven such as the grill 4 and the baking tray 5, ensuring the efficient and stable operation of the oven in a high temperature environment.

[0037] A clutch device 12 is arranged above the reduction gear set 11. The clutch device 12 includes a connecting seat 123 fixedly connected to the top of the reduction gear set 11. The connecting seat 123 is designed to transmit the power of the magnetic core 13 to the reduction gear set 11 while ensuring the stability and efficiency of the power transmission. A protective shell 121 is arranged on the outer sleeve of the connecting seat 123. A plurality of inner teeth 122 are arranged on the inner side wall of the protective shell 121. The design of the protective shell 121 not only provides physical protection to prevent external factors from damaging the internal machinery, but also provides support for the inner teeth 122. The inner teeth 122 are arranged in a wedge shape, which helps to The power transmission or disconnection is realized under control. The wedge-shaped structure of the inner teeth 122 can realize smooth meshing and separation when the clutch device 12 is operated, reducing wear and noise. A spring lock tongue 124 is slidably installed above the connecting seat 123. The end of the spring lock tongue 124 away from the center of the connecting seat 123 is clamped between the two inner teeth 122. When the magnetic core 13 rotates, the connecting seat 123 is driven to rotate through the reduction gear set 11, and the spring lock tongue 124 is squeezed toward the center of the connecting seat 123 to realize power transmission. When the magnetic core 13 rotates in the opposite direction, the protective shell 121 is driven to rotate through the spring lock tongue 124, so that the height of the grill 4 and the baking tray 5 can be adjusted.

[0038] A groove sleeve 14 is fixedly installed above the connecting seat 123, and a connecting sleeve 15 is provided on the outer sleeve of the groove sleeve 14. The design of the connecting sleeve 15 makes the connection between the protective shell 121 and the groove cylinder 21 more stable, while allowing relative rotation between the two. This design helps to maintain the precise fit and operation of the motor components in a high temperature environment, and also reduces the risk of deformation or damage caused by high temperature. The bottom of the connecting sleeve 15 is fixedly connected to the upper side of the protective shell 121, and the top of the connecting sleeve 15 passes through the groove cylinder 21 and is fixedly connected to the bottom of the groove cylinder 21. The rotation of the protective shell 121 drives the groove cylinder 21 to rotate through the connecting sleeve 15. The design of the protective shell 121 not only provides physical protection to prevent external factors from damaging the internal machinery, but also provides a stable working environment for the rotating parts of the motor. This design helps to improve the stability and reliability of the motor, and also reduces the risk of failure due to external factors.

[0039] The groove sleeve 14 is internally slidably provided with a connecting core 18. This design allows the connecting core 18 to slide freely inside the groove sleeve 14, reducing friction and improving transmission efficiency. The top of the connecting core 18 is fixedly connected to the baking tray 5, so that the baking tray 5 can rotate with the rotation of the connecting core 18, thereby achieving uniform heating of food inside the oven. A number of splines are fixedly installed on the side wall of the connecting core 18, and a number of spline grooves are provided on the inner wall of the groove sleeve 14. These splines cooperate with the spline grooves provided on the inner wall of the groove sleeve 14. This design allows the connecting core 18 to slide smoothly in the groove sleeve 14 while transmitting power. When the connecting seat 123 rotates, the connecting core 18 and the baking tray 5 are driven to rotate through the groove sleeve 14. The design of the protective shell 121 not only provides physical protection to prevent external factors from damaging the internal machinery, but also provides a stable working environment for the rotating parts of the motor. This design helps to improve the stability and reliability of the motor, while also reducing the risk of failure caused by external factors.

[0040] A T-shaped pressure rod 26 is fixedly installed between the two slide posts 23, and the injection cylinder 6 is installed below the T-shaped pressure rod 26. When the slide post 23 slides up and down, it drives the T-shaped pressure rod 26 to squeeze the piston rod of the injection cylinder 6 downward. This design enables the injection cylinder 6 to reciprocate up and down under the drive of the slide post 23, thereby achieving precise control and injection of the lubricating oil. This design helps to ensure that the mechanical parts inside the oven are fully lubricated in a high temperature environment, reduce wear, and improve the working efficiency and service life of the oven. The lower end of the injection cylinder 6 passes through the upper cover 16 and is connected to the interior of the reduction gear set 11. The injection cylinder 6 injects lubricating oil into the surface of the protective shell 121, and the lubricating oil flows through the protective shell 121 to several gears of the reduction gear set 11. This design ensures that the lubricating oil can be evenly distributed on the gears, reduces friction and wear between the gears, and improves the life and transmission efficiency of the gears.

[0041] In the specific use of this embodiment, when the oven is powered on, the magnetic core 13 of the high temperature resistant square motor of the oven starts to rotate, generating a rotating magnetic field, thereby driving the entire transmission system. The rotation of the magnetic core 13 is decelerated and the torque is amplified by the reduction gear set 11. The power is transmitted from the magnetic core 13 to the connecting seat 123, and then transmitted to the baking tray 5 through the groove sleeve 14 and the connecting core 18. When the magnetic core 13 rotates, the connecting seat 123 is driven to rotate through the reduction gear set 11, thereby squeezing the spring lock tongue 124 to control the engagement and separation of the clutch device 12. The rotation of the clutch device 12 drives the adjustment component 2, and then controls the baking tray 5 and the grill 4 to move up and down or rotate inside the oven to meet different baking needs. The reduction gear set 11 adopts the method of applying high-temperature grease during assembly, which greatly improves the temperature resistance of the motor, can adapt to more complex use environments, and has better applicability. When the slide column 23 slides up and down, the injection cylinder 6 is squeezed by the T-shaped pressure rod 26 to inject the lubricating oil into the surface of the protective shell 121, and then flows between the gears of the reduction gear set 11 to achieve continuous lubrication of the gears.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A high temperature resistant square motor for an oven, comprising a transmission assembly (1), wherein a reduction gear set (11) is arranged inside the transmission assembly (1), a clutch device (12) is arranged above the reduction gear set (11), and the reduction gear set (11) drives the clutch device (12) to rotate, characterized in that: An adjusting component (2) is arranged above the clutch device (12). When the clutch device (12) rotates in the reverse direction, the adjusting component (2) is driven to slide up and down. A baking tray (5) is arranged above the adjusting component (2). A grill (4) is sleeved on the outside of the baking tray (5). When the clutch device (12) rotates, the adjusting component (2) drives the baking tray (5) to rotate at the center of the grill (4). When the clutch device (12) rotates in the forward direction, the adjusting component (2) drives the grill (4) and the baking tray (5) to slide up and down. An injection cylinder (6) is arranged on one side of the adjusting component (2). When the adjusting component (2) slides up and down, the injection cylinder (6) is squeezed so that the injection cylinder (6) injects lubricating oil into the interior of the transmission component (1).

2. The high temperature resistant square motor for oven according to claim 1, characterized in that: An oven shell (3) is arranged outside the grill (4), and an upper chamber and a lower chamber are arranged above and below the oven shell (3), and the two chambers are separated by a partition. The transmission assembly (1) includes a bottom shell (17), and the bottom shell (17) is fixedly installed in the lower chamber. The grill (4) and the baking tray (5) are arranged in the upper chamber.

3. The high temperature resistant square motor for oven according to claim 2, characterized in that: An upper cover (16) is installed above the bottom shell (17), and the adjustment assembly (2) includes two slide seats (25) installed above the upper cover (16). A slide post (23) is slidably arranged inside the slide seat (25), and the top of the slide post (23) passes through the partition and is connected to the baking tray (5). When the slide post (23) slides up and down, it drives the grill (4) and the baking tray (5) to slide up and down inside the oven shell (3).

4. The high temperature resistant square motor for oven according to claim 3, characterized in that: A limit frame (24) is arranged above the two slide seats (25). Both sides of the limit frame (24) are sleeved on the slide seats (25). A grooved cylinder (21) is rotatably mounted inside the limit frame (24). An annular groove (211) is obliquely provided on the side wall of the grooved cylinder (21). A sliding pin (22) is fixedly mounted on the side wall of one of the limit frames (24). One end of the sliding pin (22) close to the grooved cylinder (21) is clamped in the annular groove (211). When the grooved cylinder (21) rotates, it squeezes the side wall of the sliding pin (22), so that the sliding pin (22) slides along the annular groove (211), thereby driving the sliding column (23) to reciprocate up and down.

5. The high temperature resistant square motor for oven according to claim 4, characterized in that: A magnetic core (13) is rotatably mounted at the bottom of the bottom shell (17), a reduction gear set (11) is arranged above the magnetic core (13), the reduction gear set (11) is composed of a plurality of gears of different sizes, wherein the number of teeth of the gears located at the bottom is smaller than the number of teeth of the gears located at the top, the rotating shaft of the magnetic core (13) is connected to the bottom of the reduction gear set (11), and the reduction gear set (11) amplifies the power generated by the rotation of the rotating shaft of the magnetic core (13).

6. The high temperature resistant square motor for oven according to claim 5, characterized in that: A clutch device (12) is arranged above the reduction gear set (11), and the clutch device (12) comprises a connection seat (123) fixedly connected to the top end of the reduction gear set (11); a protective shell (121) is provided on the outside of the connection seat (123); a plurality of inner teeth (122) are arranged on the inner side wall of the protective shell (121); the inner teeth (122) are arranged in a wedge shape; a spring lock tongue (124) is slidably mounted above the connection seat (123); one end of the spring lock tongue (124) away from the center of the connection seat (123) is clamped between two inner teeth (122); when the magnetic core (13) rotates, the connection seat (123) is driven to rotate through the reduction gear set (11), and the spring lock tongue (124) is pressed toward the center of the connection seat (123); when the magnetic core (13) rotates in the opposite direction, the protective shell (121) is driven to rotate through the spring lock tongue (124).

7. The high temperature resistant square motor for oven according to claim 6, characterized in that: A groove sleeve (14) is fixedly installed above the connecting seat (123); a connecting sleeve (15) is sleeved outside the groove sleeve (14); the bottom of the connecting sleeve (15) is fixedly connected to the upper side of the protective shell (121); the top of the connecting sleeve (15) passes through the groove cylinder (21) and is fixedly connected to the bottom of the groove cylinder (21); the protective shell (121) rotates to drive the groove cylinder (21) to rotate through the connecting sleeve (15).

8. The high temperature resistant square motor for oven according to claim 7, characterized in that: A connecting core (18) is slidably arranged inside the groove sleeve (14); the top of the connecting core (18) is fixedly connected to the baking tray (5); a plurality of splines are fixedly mounted on the side wall of the connecting core (18); a plurality of spline grooves are provided on the inner side wall of the groove sleeve (14); when the connecting seat (123) rotates, the connecting core (18) and the baking tray (5) are driven to rotate through the groove sleeve (14).

9. The high temperature resistant square motor for oven according to claim 6, characterized in that: A T-shaped pressure rod (26) is fixedly installed between the two slide columns (23), and the injection cylinder (6) is installed below the T-shaped pressure rod (26). When the slide column (23) slides up and down, it drives the T-shaped pressure rod (26) to press the piston rod of the injection cylinder (6) downward. The lower end of the injection cylinder (6) passes through the upper cover (16) and is connected to the inside of the reduction gear set (11). The injection cylinder (6) injects lubricating oil onto the surface of the protective shell (121), and the lubricating oil flows through the protective shell (121) to between the several gears of the reduction gear set (11).

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