Vacuum sealing high-precision stepping driving device

Abstract

The utility model discloses a vacuum sealing high-precision stepping driving device, and particularly relates to the field of gastrodia elata processing, the vacuum sealing high-precision stepping driving device comprises a driving motor main body, one end of the driving motor main body is connected with a sealing connecting shell, and one end of the sealing connecting shell far away from the driving motor main body is connected with an output shaft connecting plate; an output shaft is connected into the output shaft connecting plate, a stepping driver is connected to one side of the driving motor body, and a cooling device is connected to the side, away from the stepping driver, of the driving motor body; heat dissipation is carried out in a water cooling mode, the stepping driver and the motor are integrally connected, dust is prevented from entering the interior of the motor from a connector, the interior of the motor is prevented from being in contact with the exterior, oil sealing is carried out on a gap in the outer side of the output shaft, external air is prevented from entering the interior of the motor, and the service life of the motor is prolonged. Therefore, the rotation environment of the stator and the rotor is a vacuum environment, thereby guaranteeing the accuracy of the number of rotation steps of the stator and the rotor.

Description

Technical Field

[0001] The utility model relates to the field of Gastrodia elata processing, and more specifically, to a vacuum-sealed high-precision stepping drive device. Background Technique

[0002] A stepping motor is a motor that converts an electrical pulse signal into a corresponding angular displacement or linear displacement. For each input pulse signal, the rotor rotates by an angle or advances by one step. The output angular displacement or linear displacement is proportional to the number of input pulses, and the rotational speed is proportional to the pulse frequency.

[0003] After retrieval, the existing patent (application number: CN202110601630.4) discloses an AC stepping motor, which includes a housing, a front end cover, a rear end cover, heat dissipation holes, a stator, a coil, a rotor, a machine shaft, bearings, step distance grooves, a lubrication mechanism and a fan. The front end cover and the rear end cover are respectively movably installed at the front and rear ends of the housing. The heat dissipation holes are opened on the surfaces of the front end cover and the rear end cover. The stator is fixedly installed at the inner edge of the housing. The coil is movably installed inside the stator. The rotor is movably installed at the center of the housing, and the stator and the rotor do not contact. The bearings are movably installed on the outer surfaces of the front and rear ends of the machine shaft and are fixedly connected between the front end cover and the rear end cover. This AC stepping motor can use the airflow generated during the heat dissipation of the motor to apply lubricating oil to the stator inside the motor, so as to achieve the purpose of preventing rust. At the same time, the lubricating oil is not easy to drip during the application process, reducing the risk of coil short circuit and ensuring the service life of the motor. The inventor found the following problems in the prior art during the implementation of the present utility model:

[0004] The existing stepping motors still mostly use a heat dissipation fan for heat dissipation. This heat dissipation method makes the stator and rotor inside the motor inevitably contact with the outside air. In some environments with a large amount of dust, the stator and rotor of the motor will adsorb dust, which will affect the rotation accuracy of the motor.

[0005] Therefore, a vacuum-sealed high-precision stepping drive device is proposed to solve the above problems. Content of the Utility Model

[0006] In order to overcome the above-mentioned defects of the prior art, the present utility model provides a vacuum-sealed high-precision stepping drive device to solve the problems raised in the above background technique.

[0007] To achieve the above object, the present utility model provides the following technical solution: A vacuum-sealed high-precision stepping drive device includes a driving motor main body. One end of the driving motor main body is connected to a sealed connection housing. The end of the sealed connection housing away from the driving motor main body is connected to an output shaft connecting plate, and an output shaft is connected inside the output shaft connecting plate.

[0008] One side of the driving motor body is connected with a stepper driver, one side of the stepper driver is connected with a wiring block, the side of the driving motor body far away from the stepper driver is connected with a cooling device, and a cooling fan is connected to the central position of the cooling device. Two groups of coolant delivery pipes are connected to both sides of the cooling fan, and both groups of coolant delivery pipes are connected into the driving motor body.

[0009] Preferably, the driving motor body includes a protective housing and a vacuum rotor connection groove, and a plug connection block is arranged at the connection between the sealed connection housing and the driving motor body. The plug connection block is connected to the protective housing by bolts.

[0010] Preferably, a heat dissipation housing is arranged inside the protective housing, multiple heat dissipation grooves are arranged inside the heat dissipation housing, and both ends of the heat dissipation grooves are respectively connected to the two groups of coolant delivery pipes.

[0011] Preferably, a stator connection housing is arranged inside the heat dissipation housing, the vacuum rotor connection groove is arranged inside the stator connection housing, an output connection block is connected between the stepper driver and the driving motor body, and the output connection block is connected into the stator connection housing.

[0012] Preferably, two connection bearings are arranged at the connection between the sealed connection housing and the output shaft, sealing gaskets are connected to one side of both groups of connection bearings, and an oil groove is arranged between the two groups of connection bearings.

[0013] Preferably, the sealing gasket is in the shape of an I-shaped circular ring with wide ends and a narrow middle, and an anti-leakage connection convex ring is arranged inside the sealing gasket.

[0014] The technical effects and advantages of the present utility model:

[0015] Compared with the prior art, this vacuum-sealed high-precision stepper drive device dissipates heat through a water-cooling method, and by integrally connecting the stepper driver and the motor, it prevents dust from entering the motor interior from the interface, thereby avoiding contact between the interior and exterior of the motor. The heat of the driving motor body is dissipated and cooled through the cooling device. The cooling device sends the coolant into the driving motor body through the coolant delivery pipes, and the coolant is sent into the heat dissipation grooves inside the heat dissipation housing through the coolant delivery pipes. After the coolant absorbs heat in the driving motor body, it flows back to the cooling device through the coolant delivery pipes, and the cooling fan cools the coolant in the cooling device.

[0016] Compared with the prior art, for this vacuum-sealed high-precision stepper drive device, the gap outside the output shaft is oil-sealed to prevent external air from entering the interior of the motor, so that the rotation environment of the stator and the rotor is a vacuum environment, thus ensuring the accuracy of the rotation steps of the stator and the rotor. During the operation of the motor, the vacuum rotor connection groove is in a vacuum environment to prevent external dust from entering the rotor and the stator. The output shaft is connected to the inside of the sealed connection housing through two groups of connecting bearings, and the connection gap between the output shaft and the connecting bearings can be oil-sealed through an oil groove, so that the vacuum rotor connection groove maintains a vacuum state, thereby preventing dust from entering the vacuum rotor connection groove. Two groups of sealing gaskets are used to seal the oil groove to prevent oil and water leakage. The I-shaped circular ring structure of the sealing gasket can prevent oil and water leakage, and the anti-leakage connecting convex ring arranged on the inner side of the sealing gasket can prevent oil and water from leaking from the gap outside the output shaft. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the whole front of the present utility model.

[0018] Figure 2 It is a schematic structural diagram of the whole back of the present utility model.

[0019] Figure 3 It is a schematic structural diagram of the side section at the main body of the drive motor of the present utility model.

[0020] Figure 4 It is a schematic structural diagram of the front section at the main body of the drive motor of the present utility model.

[0021] Figure 5 It is a schematic structural diagram of the side section at the sealed connection housing of the present utility model.

[0022] Figure 6 It is a schematic structural diagram of the sealing gasket of the present utility model.

[0023] Reference numerals are: 1. Drive motor main body; 2. Sealed connection housing; 3. Stepper driver; 4. Output shaft; 5. Cooling device; 11. Protection housing; 12. Heat dissipation housing; 121. Heat dissipation groove; 13. Stator connection housing; 14. Vacuum rotor connection groove; 21. Output shaft connection plate; 22. Plug-in connection block; 23. Connecting bearing; 231. Sealing gasket; 2311. Anti-leakage connecting convex ring; 24. Oil groove; 31. Output connection block; 32. Output connection block; 51. Cooling fan; 52. Coolant delivery pipe. Detailed Description of the Invention

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment 1

[0025] As shown in the attached Figures 1 to 2 A vacuum-sealed high-precision stepping drive device, including a drive motor main body 1, one end of the drive motor main body 1 is connected with a sealed connection housing 2, one end of the sealed connection housing 2 away from the drive motor main body 1 is connected with an output shaft connecting plate 21, and an output shaft 4 is connected inside the output shaft connecting plate 21;

[0026] One side of the drive motor main body 1 is connected with a stepping driver 3, one side of the stepping driver 3 is connected with a wiring block 31, one side of the drive motor main body 1 away from the stepping driver 3 is connected with a cooling device 5, and a cooling fan 51 is connected to the central position of the cooling device 5. Two groups of coolant delivery pipes 52 are connected to both sides of the cooling fan 51, and both groups of coolant delivery pipes 52 are connected to the inside of the drive motor main body 1.

[0027] Among them: The output shaft 4 is connected to the inside of the drive motor main body 1 through the output shaft connecting plate 21 on the sealed connection housing 2, and the running rotation direction and rotation steps of the drive motor main body 1 are controlled by the stepping driver 3. The stepping driver 3 is connected to an external power supply through the wiring block 31. The heat of the drive motor main body 1 is dissipated and cooled through the cooling device 5. The cooling device 5 sends the coolant into the drive motor main body 1 through the coolant delivery pipe 52. After the coolant absorbs heat in the drive motor main body 1, it flows back to the cooling device 5 through the coolant delivery pipe 52, and the cooling fan 51 cools the coolant in the cooling device 5. Embodiment 2

[0028] On the basis of Embodiment 1, the solution in Embodiment 1 will be further refined and introduced in combination with the following specific working methods, as Figures 1 to 6 shown, see the following description for details:

[0029] As a preferred implementation method, the drive motor main body 1 includes a protective housing 11 and a vacuum rotor connection groove 14, and a plug-in connection block 22 is provided at the connection between the sealed connection housing 2 and the drive motor main body 1. The plug-in connection block 22 is connected to the protective housing 11 by bolts; further, the drive motor main body 1 is protected by the protective housing 11. The sealed connection housing 2 is plugged into the protective housing 11 through the plug-in connection block 22 and is installed and disassembled by bolts, which is convenient for subsequent maintenance and replacement work.

[0030] As a preferred embodiment, a heat dissipation shell 12 is provided on the inner side of the protective shell 11, and a plurality of heat dissipation grooves 121 are provided in the heat dissipation shell 12, and the two ends of the heat dissipation grooves 121 are respectively connected to two groups of coolant delivery pipes 52; further, the heat dissipation shell 12 dissipates the heat generated in the stator connecting shell 13 and the vacuum rotor connecting groove 14, and the coolant delivery pipe 52 delivers the coolant into the heat dissipation grooves 121 in the heat dissipation shell 12.

[0031] As a preferred embodiment, a stator connecting shell 13 is provided on the inner side of the heat dissipation shell 12, and a vacuum rotor connecting groove 14 is provided on the inner side of the stator connecting shell 13. An output connecting block 32 is connected between the stepper driver 3 and the driving motor body 1, and the output connecting block 32 is connected to the stator connecting shell 13. Furthermore, the stator of the stepper motor is installed and connected in the stator connecting shell 13, and the rotor of the stepper motor is fixedly connected in the vacuum rotor connecting groove 14, and the vacuum rotor connecting groove 14 is a vacuum environment to prevent external dust from entering the rotor and stator. The stepper driver 3 controls the power supply direction of the stator in the stator connecting shell 13 through the output connecting block 32, thereby controlling the rotation of the rotor.

[0032] As a preferred embodiment, two groups of connecting bearings 23 are provided at the connection between the sealed connecting housing 2 and the output shaft 4, and sealing gaskets 231 are connected to one side of the two groups of connecting bearings 23, and an oil groove 24 is provided between the two groups of connecting bearings 23; further, the output shaft 4 is connected to the sealed connecting housing 2 through the two groups of connecting bearings 23, and the connecting gap between the output shaft 4 and the connecting bearings 23 can be oil-sealed through the oil groove 24, so that the vacuum rotor connecting groove 14 maintains a vacuum state, thereby preventing dust from entering the vacuum rotor connecting groove 14, and the oil groove 24 is sealed by two groups of sealing gaskets 231 to prevent oil and water leakage.

[0033] As a preferred embodiment, the sealing gasket 231 is an I-shaped ring that is wide at both ends and narrow in the middle, and a leak-proof connecting convex ring 2311 is provided on the inner side of the sealing gasket 231; further, the I-shaped ring structure of the sealing gasket 231 can prevent oil and water leakage, and the leak-proof connecting convex ring 2311 provided on the inner side of the sealing gasket 231 can prevent oil and water from leaking from the gap outside the output shaft 4.

[0034] The working process of the present utility model is as follows: The output shaft 4 is connected to the inside of the driving motor main body 1 through the output shaft connecting plate 21 on the sealing connection housing 2, and one end of the output shaft 4 is connected to the machinery to be driven. The running rotation direction and rotation steps of the driving motor main body 1 are controlled by the stepping driver 3 through the output connection block 32 to control the energization direction of the stator in the stator connection housing 13, so as to control the rotation action of the rotor. The stepping driver 3 is connected to an external power supply through the wiring block 31;

[0035] During the operation of the stepping motor, the heat of the driving motor main body 1 is dissipated and cooled by the cooling device 5. The cooling device 5 sends the coolant into the driving motor main body 1 through the coolant delivery pipe 52, and the coolant delivery pipe 52 sends the coolant into the cooling grooves 121 in the heat dissipation housing 12. After the coolant absorbs heat in the driving motor main body 1, it flows back to the cooling device 5 through the coolant delivery pipe 52, and the cooling fan 51 cools the coolant in the cooling device 5;

[0036] During the operation of the motor, the vacuum rotor connection groove 14 is in a vacuum environment to prevent external dust from entering the rotor and stator. The output shaft 4 is connected in the sealing connection housing 2 through two groups of connecting bearings 23, and the connection gap between the output shaft 4 and the connecting bearings 23 can be oil-sealed through the oil groove 24, so that the vacuum rotor connection groove 14 maintains a vacuum state, thereby preventing dust from entering the vacuum rotor connection groove 14. Two groups of sealing gaskets 231 are used to seal the oil groove 24 to prevent oil and water leakage. The I-shaped circular ring structure of the sealing gasket 231 can prevent oil and water leakage, and the anti-leakage connection convex ring 2311 provided on the inner side of the sealing gasket 231 can prevent oil and water from leaking from the gap outside the output shaft 4. The above is the working principle of the vacuum-sealed high-precision stepping drive device.

[0037] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A vacuum-sealed high-precision stepping drive device, comprising a drive motor main body (1), characterized in that: One end of the driving motor main body (1) is connected with a sealed connection housing (2). One end of the sealed connection housing (2) far from the driving motor main body (1) is connected with an output shaft connecting plate (21), and an output shaft (4) is connected inside the output shaft connecting plate (21). One side of the driving motor main body (1) is connected with a stepper driver (3). One side of the stepper driver (3) is connected with a wiring block (31). One side of the driving motor main body (1) far from the stepper driver (3) is connected with a cooling device (5). A cooling fan (51) is connected to the central position of the cooling device (5). Two groups of coolant delivery pipes (52) are connected to both sides of the cooling fan (51), and both groups of coolant delivery pipes (52) are connected into the driving motor main body (1).

2. The vacuum-sealed high-precision stepping drive device according to claim 1, wherein: The driving motor main body (1) includes a protective housing (11) and a vacuum rotor connection groove (14). A plug-in connection block (22) is arranged at the connection position between the sealed connection housing (2) and the driving motor main body (1), and the plug-in connection block (22) is connected with the protective housing (11) by bolts.

3. The vacuum-sealed high-precision stepper drive device according to claim 2, wherein: A heat dissipation housing (12) is arranged inside the protective housing (11). Multiple groups of heat dissipation grooves (121) are arranged inside the heat dissipation housing (12), and both ends of the heat dissipation grooves (121) are respectively connected with two groups of coolant delivery pipes (52).

4. A vacuum-sealed high-precision stepping drive device according to claim 3, characterized in that: A stator connection housing (13) is arranged inside the heat dissipation housing (12). The vacuum rotor connection groove (14) is arranged inside the stator connection housing (13). An output connection block (32) is connected between the stepper driver (3) and the driving motor main body (1), and the output connection block (32) is connected into the stator connection housing (13).

5. A vacuum-sealed high-precision stepping drive device according to claim 1, characterized in that: Two groups of connection bearings (23) are arranged at the connection position between the sealed connection housing (2) and the output shaft (4). Sealing gaskets (231) are connected to one side of both groups of connection bearings (23). An oil groove (24) is arranged between the two groups of connection bearings (23).

6. A vacuum-sealed high-precision stepper drive device according to claim 5, characterized in that: The sealing gasket (231) is in the shape of an I-shaped circular ring with wide ends and a narrow middle, and an anti-leakage connection convex ring (2311) is arranged inside the sealing gasket (231).

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