Direct connection type gear transmission double-variable-speed motor

Abstract

The utility model relates to the technical field of variable speed motors, and discloses a direct connection type gear transmission double variable speed motor, which comprises a motor rear cover, a rotor arranged in the motor rear cover, a stator fixedly mounted in the motor rear cover, a motor shaft rotatably mounted in the motor rear cover, a first bearing arranged on the outer side of the motor shaft, and a second bearing arranged on the outer side of the motor shaft. A first-stage gearbox is fixedly installed on the outer side of the motor rear cover. According to the direct connection type gear transmission double-speed-change motor, transmission and speed change modes are achieved through the gears, during mincing work, speed change is achieved through the first-stage gear, meanwhile, rotation of the cutter set is controlled through the second-stage gear, meat cutting work is normal, machine power can be effectively improved, noise of the machine is reduced, and noise pollution is avoided; the four-corner locking nut can be effectively prevented from loosening during operation, the stability during work is improved, the spring can also play a buffering role, the influence of external impact on system parts is reduced, and therefore the service life of the four-corner locking nut is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of variable speed motors, in particular to a direct-connected gear-driven dual-speed variable speed motor. Background Art

[0002] As people's living standards continue to improve, motors are often used to power meat grinders. In order to achieve more precise slicing control when mincing meat, and different types of ingredients may require different slicing speeds and strengths, a direct-connected gear-driven dual-speed motor is often used to match the meat grinder.

[0003] Although the existing technology can slice meat very well, the traditional belt drive and chain drive transmission methods not only bring certain complexity and machine noise, but also cause machine jams and belt slippage, and are inconvenient for subsequent maintenance and replacement. Utility Model Content

[0004] Technical problem solved: In view of the deficiencies in the prior art, the utility model provides a direct-connected gear-driven dual-speed motor to solve the problems raised in the above background.

[0005] Technical Solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a direct-connected gear-driven dual-speed motor, comprising a motor rear cover, a rotor is arranged inside the motor rear cover, a stator is fixedly installed inside the motor rear cover, a motor shaft is rotatably installed inside the motor rear cover, a bearing 1 is arranged on the outside of the motor shaft, a first-stage gearbox is fixedly installed on the outside of the motor rear cover, a gear 1 is arranged inside the first-stage gearbox, a gear 2 is arranged on the outside of the gear 1, a knife shaft is fixedly installed on the outside of the gear 2, a knife group is fixedly installed on the outside of the knife shaft, a locking four-corner nut is fixedly installed on the outside of the knife group, a spring is arranged on the outside of the locking four-corner nut, an oil seal is fixedly installed on the outside of the knife shaft, a second-stage gearbox is fixedly installed on the outside of the first-stage gearbox, a bearing 2 is arranged inside the second-stage gearbox, a motor housing is fixedly installed inside the motor rear cover, a motor fan blade is fixedly installed on the outside of the motor shaft, and a centrifugal switch is arranged inside the motor rear cover.

[0007] Preferably, the gear one and the gear two are meshingly connected, and the gear two is adapted to the knife shaft.

[0008] Through the above technical solution, through the design of gear one and gear two, the motor shaft can drive the internal knife shaft to rotate, and the knife shaft can drive the knife group to rotate, so as to realize the mincing of meat.

[0009] Preferably, the gear 1 and the gear 2 are located inside the motor housing, and the rotor and the stator are located on both sides of the motor shaft.

[0010] Through the above technical solution, a compact layout can be achieved through the direct connection of gear one and gear two transmission, and the main components of gear one, gear two and the motor can be integrated into a motor housing, which helps to reduce the volume of the entire motor system and can effectively reduce machine noise and avoid loud noise and noise pollution.

[0011] Preferably, the gear 2, the knife shaft and the knife group are provided with two identical ones, and the two gear 2, the knife shaft and the knife group are symmetrically distributed about the center line of the motor rear cover.

[0012] Through the above technical solution, through the design of gear 2, the knife shaft and the knife group with symmetrical distribution of the center line, not only can the vibration during operation be effectively reduced, thereby reducing the noise level, but also the imbalance of small loads can be reduced, avoiding tipping during the working process, and simplifying the manufacturing and installation process.

[0013] Preferably, the locking quadrangular nut is matched with a spring, and the spring is located at an end of the knife shaft away from gear two.

[0014] Through the above technical solution, through the design of the spring, the four-corner lock nut can be effectively prevented from loosening during operation, thereby improving the stability during operation, and the spring can also play a buffering role, reducing the impact of external shocks on system components, thereby extending their life.

[0015] Preferably, the oil seal is located inside the two-stage gearbox, and the second bearing is matched with the cutter shaft.

[0016] Through the above technical solution, through the design of the oil seal, not only can the lubricating oil be effectively prevented from leaking from the gearbox, ensuring that internal components such as the second bearing and the knife shaft can be fully lubricated, but also external pollutants such as dust, moisture and impurities can be prevented from entering the interior of the secondary gearbox.

[0017] Preferably, the motor rear cover and the motor housing are made of steel material, and the first-stage gearbox and the second-stage gearbox are made of alloy material.

[0018] Through the above technical solution, the motor back cover and motor housing made of steel material and the first and second gearboxes are made of alloy materials, which can not only provide good strength and durability, but also reduce the weight of the material, and are usually relatively cheap, which helps to reduce manufacturing costs. At the same time, steel materials usually have good thermal conductivity, which helps to dissipate heat.

[0019] Compared with the prior art, the utility model provides a direct-connected gear-driven dual-speed motor, which has the following beneficial effects:

[0020] 1. The direct-connected gear-driven dual-speed motor uses gears for transmission and speed change. During the mincing and cutting work, the first-stage gear changes speed and the second-stage gear controls the rotation of the knife group, so that the meat cutting work can be normal, which can effectively improve the power of the machine and reduce its noise to avoid noise pollution. The spring design can effectively prevent the locking four-corner nuts from loosening during operation, improve the stability during operation, and the spring can also play a buffering role to reduce the impact of external shocks on system components, thereby extending their life;

[0021] 2. The direct-connected gear-driven dual-speed motor has a motor back cover and motor housing made of steel material, and the first and second gearboxes are made of alloy material, which can not only provide good strength and durability, but also reduce the weight of the material, and is usually relatively cheap, which helps to reduce manufacturing costs. At the same time, steel materials usually have good thermal conductivity, which helps to dissipate heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0023] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the split structure of the utility model Figure 1 ;

[0026] Figure 5 This is a schematic diagram of the split structure of the utility model Figure 2 .

[0027] Among them: 1. Motor back cover; 2. Rotor; 3. Stator; 4. Motor shaft; 5. Bearing 1; 6. First-stage gearbox; 7. Gear 1; 8. Gear 2; 9. Knife shaft; 10. Knife assembly; 11. Locking four-corner nut; 12. Spring; 13. Oil seal; 14. Second-stage gearbox; 15. Bearing 2; 16. Motor housing; 17. Motor fan blades; 18. Centrifugal switch. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Embodiment 1: Figure 1-5 As shown, the utility model provides a direct-connected gear-driven dual-speed motor, comprising a motor rear cover 1, a rotor 2 is arranged inside the motor rear cover 1, a stator 3 is fixedly installed inside the motor rear cover 1, a motor shaft 4 is rotatably installed inside the motor rear cover 1, a bearing 1 5 is arranged on the outside of the motor shaft 4, a first-stage gearbox 6 is fixedly installed on the outside of the motor rear cover 1, a gear 1 7 is arranged inside the first-stage gearbox 6, a gear 2 8 is arranged on the outside of the gear 1 7, a knife shaft 9 is fixedly installed on the outside of the gear 2 8, a knife group 10 is fixedly installed on the outside of the knife shaft 9, a locking four-corner nut 11 is fixedly installed on the outside of the knife group 10, a spring 12 is arranged on the outside of the locking four-corner nut 11, an oil seal 13 is fixedly installed on the outside of the knife shaft 9, a second-stage gearbox 14 is fixedly installed on the outside of the first-stage gearbox 6, a bearing 2 15 is arranged inside the second-stage gearbox 14, a motor housing 16 is fixedly installed on the inside of the motor rear cover 1, a motor fan blade 17 is fixedly installed on the outside of the motor shaft 4, and a centrifugal switch 18 is arranged inside the motor rear cover 1.

[0030] Specifically, gear 1 7 and gear 2 8 are meshingly connected, and gear 2 8 is adapted to the knife shaft 9. The advantage is that, through the design of gear 1 7 and gear 2 8, the motor shaft 4 can drive the internal knife shaft 9 to rotate, and the knife shaft 9 can drive the knife group 10 to rotate, so as to realize the mincing of meat.

[0031] Specifically, gear 1 7 and gear 2 8 are located inside the motor housing 16, and the rotor 2 and stator 3 are located on both sides of the motor shaft 4. The advantage is that a compact layout can be achieved through the direct-connected transmission of gear 1 7 and gear 2 8, and the main components of gear 1 7, gear 2 8 and the motor are integrated in a motor housing 16, which helps to reduce the volume of the entire motor system and can effectively reduce machine noise, avoiding loud noise and noise pollution.

[0032] Specifically, two identical gears 8, blade shaft 9 and blade group 10 are provided, and the two gears 8, blade shaft 9 and blade group 10 are symmetrically distributed about the center line of the motor rear cover 1. The advantage is that the design of gears 8, blade shaft 9 and blade group 10 with symmetrical distribution of the center line can not only effectively reduce the vibration during operation, thereby reducing the noise level, but also reduce the imbalance of small loads, avoid tipping over during operation, and simplify the manufacturing and installation process.

[0033] Embodiment 2: Figure 2-5 As shown, as an improvement to the previous embodiment.

[0034] Specifically, the four-corner lock nut 11 and the spring 12 are adapted to each other, and the spring 12 is located at the end of the knife shaft 9 away from the gear 2 8. The advantage is that the design of the spring 12 can effectively prevent the four-corner lock nut 11 from loosening during operation, thereby improving the stability during operation, and the spring 12 can also play a buffering role, reducing the impact of external shocks on system components, thereby extending their service life.

[0035] Specifically, the oil seal 13 is located inside the secondary gearbox 14, and the bearing 2 15 is adapted to the knife shaft 9. The advantage is that the design of the oil seal 13 can not only effectively prevent the lubricating oil from leaking from the gearbox, ensuring that the internal components such as the bearing 2 15 and the knife shaft 9 can be fully lubricated, but also prevent external pollutants, such as dust, moisture and impurities, from entering the interior of the secondary gearbox 14.

[0036] Specifically, the motor back cover 1 and the motor housing 16 are made of steel material, and the first gearbox 6 and the second gearbox 14 are made of alloy material. The advantage is that the motor back cover 1 and the motor housing 16 made of steel material and the first gearbox 6 and the second gearbox 14 are made of alloy material, which can not only provide good strength and durability, but also reduce the weight of the material, and are usually relatively cheap, which helps to reduce manufacturing costs. At the same time, steel material usually has good thermal conductivity, which helps to dissipate heat.

[0037] Working principle: When in use, a compact layout can be achieved through the direct connection of gear 1 7 and gear 2 8, and the main components of gear 1 7, gear 2 8 and the motor are integrated in a motor housing 16, which helps to reduce the volume of the entire motor system and can effectively reduce machine noise, avoid loud noise and noise pollution. The design of gear 2 8, knife shaft 9 and knife group 10 with symmetrical distribution of the center line can not only effectively reduce the vibration during operation, thereby reducing the noise level, but also reduce the imbalance of small loads, avoid tipping over during operation, and simplify the manufacturing and installation process. The design of the spring 12 can effectively prevent the lock square nut 11 from loosening during operation, thereby improving stability during operation. The spring 12 can also play a buffering role, reducing the impact of external shocks on system components, thereby extending their life. The design of the oil seal 13 can not only effectively prevent the lubricating oil from leaking from the gearbox, ensuring that the internal components such as the bearing 15 and the knife shaft 9 can be fully lubricated, but also prevent external pollutants, such as dust, moisture and impurities, from entering the secondary gearbox 14. The motor back cover 1 and the motor housing 16 made of steel material and the primary gearbox 6 and the secondary gearbox 14 are made of alloy material, which can not only provide good strength and durability, but also reduce the weight of the material, and are usually relatively cheap, which helps to reduce manufacturing costs. At the same time, steel materials usually have good thermal conductivity, which helps to dissipate heat.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A direct-connected gear-driven dual-speed motor, comprising a motor rear cover (1), characterized in that: The motor rear cover (1) is provided with a rotor (2) inside, the motor rear cover (1) is fixedly provided with a stator (3) inside, the motor rear cover (1) is rotatably provided with a motor shaft (4) inside, the motor shaft (4) is provided with a bearing 1 (5) outside, the motor rear cover (1) is fixedly provided with a first gearbox (6) outside, the first gearbox (6) is provided with a gear 1 (7) inside, the gear 1 (7) is provided with a gear 2 (8) outside, the gear 2 (8) is fixedly provided with a knife shaft (9) outside, the knife shaft (9) is fixedly provided with a knife assembly (10) outside. ), a locking four-corner nut (11) is fixedly mounted on the outer side of the knife group (10), a spring (12) is arranged on the outer side of the locking four-corner nut (11), an oil seal (13) is fixedly mounted on the outer side of the knife shaft (9), a secondary gearbox (14) is fixedly mounted on the outer side of the primary gearbox (6), a bearing 2 (15) is arranged inside the secondary gearbox (14), a motor housing (16) is fixedly mounted inside the motor rear cover (1), a motor fan blade (17) is fixedly mounted on the outer side of the motor shaft (4), and a centrifugal switch (18) is arranged inside the motor rear cover (1).

2. A direct-connected gear-driven dual-speed motor according to claim 1, characterized in that: The gear one (7) and the gear two (8) are meshingly connected, and the gear two (8) is adapted to the knife shaft (9).

3. The direct-connected gear-driven dual-speed motor according to claim 1, characterized in that: The gear one (7) and the gear two (8) are located inside the motor housing (16), and the rotor (2) and the stator (3) are located on both sides of the motor shaft (4).

4. The direct-connected gear-driven dual-speed motor according to claim 1, characterized in that: The gear 2 (8), the knife shaft (9) and the knife group (10) are provided in two identical ones, and the two gear 2 (8), the knife shaft (9) and the knife group (10) are symmetrically distributed about the center line of the motor rear cover (1).

5. The direct-connected gear-driven dual-speed motor according to claim 1, characterized in that: The locking quadrangular nut (11) is matched with a spring (12), and the spring (12) is located at an end of the knife shaft (9) away from the second gear (8).

6. The direct-connected gear-driven dual-speed motor according to claim 1, characterized in that: The oil seal (13) is located inside the secondary gearbox (14), and the second bearing (15) is adapted to the knife shaft (9).

7. The direct-connected gear-driven dual-speed motor according to claim 1, characterized in that: The motor rear cover (1) and the motor housing (16) are made of steel material, and the first gearbox (6) and the second gearbox (14) are made of alloy material.

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