A temperature controller with precise temperature control

Abstract

The present application relates to temperature controller technical field, specifically to a kind of precision temperature control temperature controller, including body;Control motor;Low-power precision control device;Connecting shaft;Temperature control valve;Gear lubrication base;Comprehensive lubricating device;Quick locking device.The present application is quickly locked by quick locking device after control motor stops to the connecting shaft, then realize the problem of avoiding connecting shaft to continue rotating by inertia force, quick locking brake realizes the purpose of quick positioning on connecting shaft valve stem, avoid the influence of inertia to cause the error of valve core opening flow, achieve the purpose of realizing the precise flow regulation of temperature control valve in temperature controller, improve the precision of temperature control of temperature controller, at the same time, quick locking device drives comprehensive lubricating device to immerse lubrication to gear in gear lubrication base, then realize sufficient lubrication, after lubrication, lubricating fluid is recycled and handled, avoid the problem of rotating resistance caused by lubricating fluid to gear, improve the practicability of lubrication mode.

Description

Technical Field

[0001] This invention relates to the field of temperature controller technology, specifically to a temperature controller for precise temperature control. Background Technology

[0002] With the continuous development of energy-saving technologies, thermostats, which enable free adjustment of indoor temperature and automatic operation according to user requirements, are increasingly used in various heating equipment, such as central air conditioning, underfloor heating, and oil / gas boilers (wall-hung boilers). Typically, temperature is regulated by thermostats to control the temperature of heating equipment or the environment. The thermostat directly regulates the flow of heat source by controlling the opening of the temperature control valve. If the indoor temperature is higher than the set temperature, the thermostat gradually reduces the valve opening, thereby reducing the flow and heat dissipation through the valve and heat dissipation terminal to lower the room temperature. Conversely, if the indoor temperature is lower than the set temperature, the thermostat gradually increases the valve opening, thereby increasing the flow and heat dissipation through the valve and heat dissipation terminal to raise the room temperature.

[0003] Existing thermostats use gears to control the temperature control valve, thereby controlling the flow of the medium input with low power consumption. However, the long-term meshing of multiple gears leads to severe wear, requiring frequent lubrication of the bearings and gears. Existing oil-based lubrication methods cannot ensure that the lubricant fully contacts the tooth surfaces of each gear and the bearing surfaces, resulting in low lubrication effectiveness. Furthermore, when the motor controls the gears to open the valve stem inside the temperature control valve, the gears continue to rotate due to inertia after the motor stops. This rotational force affects the precision of gear control, which in turn affects the accuracy of temperature control within the thermostat. Therefore, we propose a thermostat for precise temperature control. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a precise temperature controller, solving the problems mentioned in the background section. To achieve the above objectives, this invention employs the following technical solution: a precise temperature controller comprising a body, an internal control motor connected to the body, a low-power precise control device mounted on the output shaft of the control motor, a connecting shaft connected to the low-power precise control device, and a temperature control valve connected to the end of the connecting shaft;

[0005] A gear lubrication base, the surface of which is fixedly connected to the inside of the body via a connecting plate;

[0006] A comprehensive lubrication device, which is located inside the device body, is used to perform immersion lubrication on the gear set inside the gear lubrication base;

[0007] A quick-locking device is installed on the gear lubrication base and is used to quickly lock the coupling after the machine stops. At the same time, it transmits power to the full lubrication device to realize automatic control of the lubricant.

[0008] Preferably, the low-power precision control device includes a single gear, the end of which is rotatably connected to the inside of a gear lubrication base. A primary gear set meshes with the surface of the single gear, a secondary gear set meshes with the surface of the primary gear set, and a connecting gear meshes with the surface of the secondary gear set.

[0009] Preferably, the end of the single gear is connected to the output shaft of the control motor, and the ends of the positive and negative gear sets and the connecting gear are rotatably connected to the inside of the gear lubrication base, and the inside of the connecting gear is fixedly connected to the end of the coupling shaft.

[0010] Preferably, the comprehensive lubrication device includes an oil reservoir, one end of which is fixedly connected to the inside of the device body, and the other end of which is fixedly connected to a connecting pipe. A hydraulic plate is connected to a piston inside the oil reservoir, and a piston rod is fixedly connected to the end of the hydraulic plate. A limit seat is fixedly connected to the end of the piston rod, and an adjusting screw is threadedly connected to the inside of the limit seat. A driven gear is fixedly connected to the end of the adjusting screw.

[0011] Preferably, the end of the connecting pipe is fixedly connected to the gear lubrication base, the surface of the plug rod is slidably connected to the inside of the oil reservoir, the end of the adjusting screw away from the driven gear is rotatably connected to the inside of the device body, and the inside of the oil reservoir is provided with a motor clearance cavity.

[0012] Preferably, the rapid locking device includes a rotating base, the end of which is rotatably connected to a gear lubrication base. A linkage device is provided on the rotating base. A drive shaft is fixedly connected to the surface of the rotating base. A limit frame is slidably connected to the surface of the drive shaft. A brake disc is fixedly connected to the surface of the limit frame through a telescopic tube.

[0013] Preferably, the rotating base is sleeved on the connecting shaft, the surface of the limiting frame is slidably connected to the inside of the device body through the limiting slider, and a spring is fixedly connected between the surface of the limiting frame and the surface of the brake disc.

[0014] Preferably, the linkage device includes an electric push rod and a connecting arm. The electric push rod is mounted on a gear lubrication base, and the output shaft of the electric push rod is connected to a rack. A brake gear meshes with the surface of the rack, and a gear ring is fixedly connected to the end of the connecting arm.

[0015] Preferably, the brake gear is internally fixedly connected to the rotating base, and the end of the connecting arm away from the gear ring is fixedly connected to the rotating base, with the surface of the gear ring meshing with the surface of the driven gear.

[0016] Preferably, a brake ring is fixedly connected to the surface of the coupling, an exhaust pipe is fixedly connected to the gear lubrication base, and the end of the temperature control valve is connected to the body by a nut.

[0017] As can be seen from the above technical solutions, the temperature controller for precise temperature control provided in the embodiments of this specification has at least the following beneficial effects:

[0018] (1) This invention uses a quick-locking device to quickly lock the connecting shaft after the control motor stops, thereby preventing the connecting shaft from continuing to rotate due to the inertia of the gears in the gear lubrication base. The quick-locking brake ring then achieves the purpose of quickly positioning the valve stem connected to the connecting shaft, thus avoiding the problem of valve core opening and flow error caused by inertia. This achieves the purpose of precise flow regulation of the temperature control valve in the thermostat, thereby improving the temperature regulation accuracy of the thermostat. At the same time, the quick-locking device drives the comprehensive lubrication device to immerse the gears in the gear lubrication base for lubrication, thereby achieving the purpose of sufficient lubrication of the gears and gear shafts. After lubrication, the lubricant can be recycled to avoid the problem of the lubricant causing rotational resistance to the gears, thus improving the practicality of the immersion lubrication method.

[0019] (2) This invention controls a motor to drive a single gear to mesh with a primary and secondary gear set, which in turn meshes with a secondary gear set. The secondary gear set meshes with a connecting gear, which in turn rotates. This connecting gear, via a shaft, drives the valve stem of the temperature control valve. Through the engagement of these gears, the driving force of the control motor is amplified, allowing for control of the valve core opening and flow rate with very low power consumption, thus enabling automatic room temperature regulation. By controlling the valve stem within the temperature control valve, the opening and flow rate of the valve core are controlled, thereby achieving the effect of controlling the medium input flow rate with low power consumption.

[0020] (3) This invention protects and maintains the single gear, main gear set, secondary gear set and connecting gear and shaft by soaking in lubricating fluid during the shutdown of the control motor. This reduces the oxidation rate of each gear and improves the service life of the gear. At the same time, the automated lubrication method improves the functionality and convenience of the temperature controller. Attached Figure Description

[0021] The accompanying drawings, which are provided to further illustrate the invention, constitute a part of this application:

[0022] Figure 1This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the device in this invention;

[0024] Figure 3 This is a schematic diagram of the low-power precision control device in this invention;

[0025] Figure 4 This is a schematic diagram of the overall lubrication device structure in this invention;

[0026] Figure 5 This is a schematic diagram of the rapid locking device in this invention;

[0027] Figure 6 This is a schematic diagram of the structure at the limiting frame in this invention;

[0028] Figure 7 This is a schematic diagram of the rack structure in this invention.

[0029] In the diagram: 1. Body; 2. Control motor; 3. Low-power precision control device; 4. Coupling; 5. Temperature control valve; 6. Gear lubrication base; 7. Comprehensive lubrication device; 71. Oil tank; 72. Connecting pipe; 73. Hydraulic plate; 74. Plug rod; 75. Limiting seat; 76. Adjusting screw; 77. Driven gear; 8. Quick locking device; 81. Rotating base; 82. Linkage device; 821. Electric push rod; 822. Rack; 823. Brake gear; 824. Connecting arm; 825. Gear ring; 83. Drive shaft; 84. Limiting frame; 85. Telescopic tube; 86. Brake disc; 87. Limiting slider; 9. Brake ring; 10. Exhaust pipe; 31. Single gear; 32. Positive and negative gear set; 33. Negative and negative gear set; 34. Connecting gear. Detailed Implementation

[0030] 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.

[0031] Please see Figures 1-7As shown, the technical solution provided by the present invention includes: a temperature controller for precise temperature control, comprising a body 1, a control motor 2 connected inside the body 1, a low-power precision control device 3 mounted on the output shaft of the control motor 2, a connecting shaft 4 connected to the low-power precision control device 3, and a temperature control valve 5 connected to the end of the connecting shaft 4; a gear lubrication base 6, the surface of which is fixedly connected to the inside of the body 1 via a connecting plate; a comprehensive lubrication device 7, located inside the body 1, for immersion lubrication of the gear set inside the gear lubrication base 6; and a rapid locking device 8, located on the gear lubrication base 6, for rapid locking of the connecting shaft 4 after shutdown, while simultaneously transmitting power to the comprehensive lubrication device 7 to achieve automatic control of the lubricating fluid.

[0032] In this embodiment, the low-power precision control device 3 includes a single gear 31, the end of which is rotatably connected to the inside of the gear lubrication base 6. A primary gear set 32 ​​meshes with the surface of the single gear 31, and a secondary gear set 33 meshes with the surface of the primary gear set 32. The primary gear set 32 ​​and the secondary gear set 33 have the same structure, each consisting of a large gear, a shaft, and a small gear. A connecting gear 34 meshes with the surface of the secondary gear set 33. The end of the single gear 31 is connected to the output shaft of the control motor 2, and the ends of the primary gear set 32, the secondary gear set 33, and the connecting gear 34 are rotatably connected to the inside of the gear lubrication base 6. The connecting gear 34 is internally fixed to the end of the connecting shaft 4. The control motor 2 meshes with the large gear on the primary and secondary gear set 32 ​​via a single gear 31. The large gear on the primary and secondary gear set 32 ​​drives the small gear to mesh with the large gear on the secondary gear set 33 via a shaft. The large gear on the secondary gear set 33 drives the small gear to mesh with the connecting gear 34 via a shaft. The connecting gear 34 drives the valve stem of the temperature control valve 5 to operate via the connecting shaft 4. The engagement of the gears amplifies the driving force of the control motor 2, enabling control of the valve core opening and flow rate of the temperature control valve 5 with very low power consumption, allowing the product to automatically regulate room temperature. By controlling the valve stem inside the temperature control valve 5, the valve core opening and flow rate of the temperature control valve 5 are controlled, thereby achieving the effect of controlling the medium input flow rate with low power consumption.

[0033] Furthermore, the comprehensive lubrication device 7 includes an oil reservoir 71, one end of which is fixedly connected to the inside of the body 1, and the other end of which is fixedly connected to a connecting pipe 72. A hydraulic plate 73 is connected to the piston inside the oil reservoir 71, and a piston rod 74 is fixedly connected to the end of the hydraulic plate 73. A limit seat 75 is fixedly connected to the end of the piston rod 74, and an adjusting screw 76 is threadedly connected inside the limit seat 75. A driven gear 77 is fixedly connected to the end of the adjusting screw 76.

[0034] The driven gear 77 moves the limiting seat 75 by adjusting the screw 76. The limiting seat 75 drives the hydraulic plate 73 through the plug rod 74 to squeeze the lubricating fluid inside the oil tank 71. After being squeezed, the lubricating fluid is transported into the gear lubrication base 6 through the connecting pipe 72. The gradual replenishment of the lubricating fluid immerses each gear in the gear lubrication base 6 for lubrication, thereby achieving the purpose of fully lubricating the gears and gear shafts.

[0035] The adjusting screw 76 controls the movement and reset of the hydraulic plate 73. After the hydraulic plate 73 resets, it generates negative pressure to drive the oil reservoir 71 to recover the lubricating fluid in the gear lubrication base 6 through the connecting pipe 72. The recovered lubricating fluid can be reused continuously. In this embodiment, due to the previous lubricating fluid immersion treatment, the surface of the gear shaft in the gear lubrication base 6 is in full contact with the lubricating fluid, thereby achieving the purpose of sufficient lubrication and avoiding the problem of damage to the surface of the gear shaft due to poor lubrication effect. This achieves immersion lubrication of the gear shaft. At the same time, when the gear shaft rotates, the lubricating fluid can be automatically drained to make way, thereby avoiding the problem of the lubricating fluid causing rotational resistance to the gear and improving the practicality of the immersion lubrication method.

[0036] The end of the connecting pipe 72 is fixedly connected to the gear lubrication base 6, the surface of the stopper rod 74 is slidably connected to the inside of the oil reservoir 71, and the end of the adjusting screw 76 away from the driven gear 77 is rotatably connected to the inside of the device body 1. The inside of the oil reservoir 71 has a motor clearance cavity to provide clearance for the installation of the control motor 2. During the shutdown of the control motor 2, the immersion of lubricating fluid can protect and maintain the single gear 31, the main gear set 32, the secondary gear set 33, and the connecting gear 34 and shaft, reducing the oxidation rate of each gear and improving the service life of the gears. At the same time, the use of automated lubrication improves the functionality and convenience of the temperature controller.

[0037] Furthermore, the quick-lock device 8 includes a rotating base 81, the end of which is rotatably connected to the gear lubrication base 6. A linkage device 82 is provided on the rotating base 81. A drive shaft 83 is fixedly connected to the surface of the rotating base 81. A limit frame 84 is slidably connected to the surface of the drive shaft 83. A brake disc 86 is fixedly connected to the surface of the limit frame 84 through a telescopic tube 85.

[0038] When the base 81 rotates, its drive shaft 83 drives the brake disc 86 on the telescopic tube 85 to move toward the axis of the brake ring 9 through the limit frame 84. During the movement, the brake disc 86 gradually contacts the surface of the brake ring 9 and uses the gradually tightening force to quickly lock the brake ring 9, thereby preventing the connecting shaft 4 from continuing to rotate due to the inertia of the rotation of each gear in the gear lubrication base 6. Quickly locking the brake ring 9 then achieves the purpose of quickly positioning the valve stem connected to the connecting shaft 4, thereby avoiding the problem of error in valve core opening and flow rate caused by inertia. This achieves the purpose of precise flow regulation of the temperature control valve 5 in the thermostat, thereby improving the accuracy of temperature regulation of the thermostat.

[0039] In one embodiment, a spring is sleeved on the telescopic tube 85, a rotating base 81 is sleeved on the connecting shaft 4, and the surface of the limiting frame 84 is slidably connected to the inside of the body 1 via a limiting slider 87. A spring is fixedly connected between the surface of the limiting frame 84 and the surface of the brake disc 86. By setting the spring, the brake disc 86 is elastically positioned, which can avoid the problem of the brake disc 86 rigidly clamping the connecting shaft 4 and causing damage to the surface of the connecting shaft 4.

[0040] It is worth noting that the linkage device 82 includes an electric push rod 821 and a connecting arm 824. The electric push rod 821 is mounted on the gear lubrication base 6. The output shaft of the electric push rod 821 is connected to a rack 822. The surface of the rack 822 meshes with a brake gear 823. The end of the connecting arm 824 is fixedly connected to a gear ring 825. The brake gear 823 is internally fixedly connected to the rotating base 81. The end of the connecting arm 824 away from the gear ring 825 is fixedly connected to the rotating base 81. The surface of the gear ring 825 meshes with the surface of the driven gear 77. Through the design of the linkage device 82, while providing rotational power to the rotating base 81, the force is utilized to achieve the effect of automatically controlling the movement of the comprehensive lubrication device 7. This achieves the effect of immersion lubrication of the gear shaft during the rapid locking and braking of the connecting shaft 4. When the gear shaft is rotating, the lubricant can be automatically drained to make way, thereby avoiding the problem of the lubricant causing rotational resistance to the gear and improving the practicality of the immersion lubrication method.

[0041] In addition, a brake ring 9 is fixedly connected to the surface of the coupling 4 to improve the protection of the coupling 4. An exhaust pipe 10 is fixedly connected to the gear lubrication base 6 to automatically exhaust and intake air for the gear lubrication base 6, thereby ensuring the normal flow of the internal lubricant. The end of the temperature control valve 5 is connected to the body 1 by a nut.

[0042] In use, the precise temperature controller of this invention operates by controlling the motor 2 via a single gear 31 meshing with the large gear on a primary gear set 32. The large gear on the primary gear set 32 ​​drives the small gear via a shaft to mesh with the large gear on a secondary gear set 33. The large gear on the secondary gear set 33 then drives the small gear via a shaft to mesh with the connecting gear 34. The connecting gear 34, via a connecting shaft 4, drives the valve stem of the temperature control valve 5. This gear engagement amplifies the driving force of the motor 2, allowing for control of the valve core opening and flow rate of the temperature control valve 5 with very low power consumption, enabling automatic room temperature adjustment. Furthermore, by controlling the valve stem within the temperature control valve 5, the valve core opening and flow rate are controlled, thus achieving control of the medium input flow rate with low power consumption.

[0043] After the control valve's opening and flow rate are regulated, the electric actuator 821 is pre-controlled to operate at the instant the control motor 2 stops. The electric actuator 821 is controlled by an electrical signal. Simultaneously with the stop of the control motor 2, the thermostat controls the electric actuator 821 to operate via an electrical signal. This technology is existing and will not be elaborated upon here. The output shaft of the electric actuator 821 drives the rack 822 to perform linear motion. During its movement, the rack 822 engages the brake gear 823 and drives the rotating base 81 to rotate on the gear lubrication base 6.

[0044] When the rotating base 81 rotates, on the one hand, the drive shaft 83 fixedly connected to it drives the limit frame 84, which is slidably connected to its surface and linearly limited, to move during rotation. The limit frames 84, which are distributed in a circular array, drive the brake disc 86 to move towards the axis of the brake ring 9 through the telescopic tube 85. During the movement, the brake disc 86 gradually contacts the surface of the brake ring 9 and uses the gradually tightening force to quickly lock the brake ring 9, thereby preventing the connecting shaft 4 from continuing to rotate due to the inertia of the rotation of the gears in the gear lubrication base 6. Quickly locking the brake ring 9 then achieves the purpose of quickly positioning the valve stem connected to the connecting shaft 4, thereby avoiding the problem of error in valve core opening and flow rate caused by inertia. This achieves the purpose of precise flow regulation of the temperature control valve 5 in the thermostat, thereby improving the accuracy of temperature regulation of the thermostat.

[0045] On the other hand, when the rotating base 81 rotates, it drives the gear ring 825 to rotate inside the body 1 via the connecting arm 824. During rotation, the gear ring 825 meshes with the driven gear 77, which drives the adjusting screw 76 to rotate. When the screw rotates, it drives the limiting seat 75, which is threaded to its surface and linearly limited, to move. The limiting seat 75 drives the hydraulic plate 73 to slide inside the oil tank 71 via the stopper rod 74. During the sliding, the hydraulic plate 73 squeezes the lubricating fluid inside the oil tank 71. After being squeezed, the lubricating fluid flows through the connecting pipe. 72 is fed into the gear lubrication base 6. The gradual replenishment of lubricant immerses each gear in the gear lubrication base 6 for lubrication, thereby achieving the purpose of fully lubricating the gears and gear shafts. During the shutdown of the control motor 2, the immersion of lubricant can protect and maintain the single gear 31, the main gear set 32, the secondary gear set 33, and the connecting gear 34 and shaft, thereby reducing the oxidation rate of each gear and improving the service life of the gears. At the same time, the use of automated lubrication improves the functionality and convenience of the temperature controller.

[0046] When the control motor 2 needs to be restarted to control the opening and flow of the temperature control valve 5, the electric push rod 821 is pre-controlled to operate. The electric push rod 821 drives the rotating base 81 on the brake gear 823 to reverse through the rack 822, and each brake disc 86 moves and resets. At this time, the brake disc 86 moves away from the brake ring 9, thereby making way for the connecting shaft 4 that needs to be rotated and adjusted later. At the same time, the gear ring 825 meshes with the driven gear 77 to control the hydraulic plate 73 to move and reset. After the hydraulic plate 73 resets, it generates negative pressure to drive the oil tank 71 to recover the lubricating fluid in the gear lubrication base 6 through the connecting pipe 72. The recovered lubricating fluid can be reused. At the same time, due to the previous lubricating fluid soaking treatment, the surface of the gear shaft in the gear lubrication base 6 is fully in contact with the lubricating fluid, thereby achieving the purpose of full lubrication and avoiding the problem of damage to the surface of the gear shaft due to poor lubrication effect. This achieves the purpose of automatically draining and making way when the gear shaft is rotating, while soaking and lubricating the gear shaft, thereby avoiding the problem of the lubricating fluid causing rotational resistance to the gear and improving the practicality of the soaking lubrication method.

[0047] The above embodiments are only used to illustrate the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the embodiments of the present invention. Therefore, all equivalent technical solutions also fall within the scope of the embodiments of the present invention, and the patent protection scope of the embodiments of the present invention should be defined by the claims.

Claims

1. A temperature controller for precise temperature control, characterized in that, include The device body (1) is connected to a control motor (2) inside the device body (1). A low-power precision control device (3) is installed on the output shaft of the control motor (2). A connecting shaft (4) is connected to the low-power precision control device (3). A temperature control valve (5) is connected to the end of the connecting shaft (4). Gear lubrication base (6), the surface of gear lubrication base (6) is fixedly connected to the inside of the body (1) by a connecting plate; The comprehensive lubrication device (7) is installed inside the body (1) and is used to immerse the gear set inside the gear lubrication base (6) for lubrication. The comprehensive lubrication device (7) includes an oil reservoir (71), one end of which is fixedly connected to the inside of the body (1), and the other end of which is fixedly connected to a connecting pipe (72). A hydraulic plate (73) is movably connected inside the oil reservoir (71), and a piston rod (74) is fixedly connected to the end of the hydraulic plate (73). A limit seat (75) is fixedly connected to the end of the piston rod (74), and an adjusting screw (76) is threaded inside the limit seat (75). A driven gear (77) is fixedly connected to the end of the adjusting screw (76). The quick-lock device (8) is installed on the gear lubrication base (6) and is used to quickly lock the coupling (4) after it stops. At the same time, it transmits power to the full lubrication device (7) to realize the automatic control of the lubricating fluid. The quick-lock device (8) includes a rotating base (81), the end of which is rotatably connected to a gear lubrication base (6), a linkage device (82) is provided on the rotating base (81), a drive shaft (83) is fixedly connected to the surface of the rotating base (81), a limit frame (84) is slidably connected to the surface of the drive shaft (83), and a brake disc (86) is fixedly connected to the surface of the limit frame (84) through a telescopic tube (85). The rotating base (81) is fitted onto the connecting shaft (4), and the surface of the limiting frame (84) is slidably connected to the inside of the body (1) through the limiting slider (87); The linkage device (82) includes an electric push rod (821) and a connecting arm (824). The electric push rod (821) is mounted on the gear lubrication base (6). The output shaft of the electric push rod (821) is connected to a rack (822). The surface of the rack (822) meshes with a brake gear (823). The end of the connecting arm (824) is fixedly connected to a gear ring (825). The brake gear (823) is internally fixedly connected to a rotating base (81). The end of the connecting arm (824) away from the gear ring (825) is fixedly connected to the rotating base (81). The surface of the gear ring (825) meshes with the surface of the driven gear (77). The surface of the connecting shaft (4) is fixedly connected to a brake ring (9). When the rotating base (81) rotates, its drive shaft (83) drives the brake disc (86) on the telescopic tube (85) to move toward the center of the brake ring (9) through the limit frame (84). When moving, the brake disc (86) gradually contacts the surface of the brake ring (9) and uses the gradually tightening force to quickly lock the brake ring (9). The driven gear (77) drives the adjusting screw (76) to rotate and drives the limit connecting seat (75) to move, driving the hydraulic plate (73) to slide inside the oil tank (71). The lubricating fluid inside the oil tank (71) is squeezed and then transported into the gear lubrication base (6) through the connecting pipe (72).

2. The temperature controller for precise temperature control according to claim 1, characterized in that: The low-power precision control device (3) includes a single gear (31), the end of which is rotatably connected to the inside of the gear lubrication base (6). The surface of the single gear (31) is meshed with a positive large and small gear set (32), the surface of the positive large and small gear set (32) is meshed with a secondary large and small gear set (33), and the surface of the secondary large and small gear set (33) is meshed with a connecting gear (34).

3. The temperature controller for precise temperature control according to claim 2, characterized in that: The end of the single gear (31) is connected to the output shaft of the control motor (2). The ends of the main gear set (32), the secondary gear set (33) and the connecting gear (34) are rotatably connected to the inside of the gear lubrication base (6). The inside of the connecting gear (34) is fixedly connected to the end of the connecting shaft (4).

4. The temperature controller for precise temperature control according to claim 1, characterized in that: The end of the connecting pipe (72) is fixedly connected to the gear lubrication base (6), the surface of the plug rod (74) is slidably connected to the inside of the oil tank (71), the end of the adjusting screw (76) away from the driven gear (77) is rotatably connected to the inside of the device body (1), and the inside of the oil tank (71) is provided with a motor clearance cavity.

5. A temperature controller for precise temperature control according to claim 1, characterized in that: A spring is fixedly connected between the surface of the limiting frame (84) and the surface of the brake disc (86).

6. A temperature controller for precise temperature control according to claim 1, characterized in that: An exhaust pipe (10) is fixedly connected to the gear lubrication base (6), and the end of the temperature control valve (5) is connected to the body (1) by a nut.

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