Motor with brake structure

Abstract

The utility model discloses a motor with a brake structure, which comprises a motor main body, a reduction gearbox, a turntable and a locking device, the reduction gearbox is arranged at the front end of the motor main body and is in transmission connection with the motor main body, and an output shaft of the reduction gearbox is fixedly provided with a mounting flange; the turntable is fixedly mounted on the mounting flange through a bolt; the locking device is arranged at the tail of the motor body and comprises a connecting shaft rotating disc and a locking shaft assembly used for clamping the connecting shaft rotating disc, an output shaft of the motor body extends to the outside from the tail end of the motor body and is fixedly connected with the connecting shaft rotating disc, and the locking shaft assembly is installed at the tail of the motor body and can lock the connecting shaft rotating disc by clamping the connecting shaft rotating disc. And the connecting shaft rotating disc is decelerated and braked. The motor provided by the utility model is suitable for the motor, the motor is provided with the locking device at the tail part of the motor main body, and the locking shaft assembly in the locking device can enable the motor main body to rapidly decelerate until the motor main body stops rotating in a manner of tightly holding the connecting shaft rotating disc when the motor main body stops.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a motor with a braking structure. Background Technology

[0002] Electric motors, as important power devices, are widely used in industry, households, and transportation. Their high efficiency and reliability make them a core component of modern mechanical systems. However, with increasingly stringent requirements for motor performance and safety, existing motor designs still have shortcomings in certain aspects, especially in braking capabilities.

[0003] In the application of electric motors, especially in automation and control systems, the ability to quickly stop motor rotation is a crucial technical requirement. Currently, most motors continue to run due to inertia after a power outage, resulting in a relatively long stopping time. This not only affects equipment efficiency but can also create safety hazards in emergencies. For example, in applications requiring rapid response (such as elevators and cranes), a slow motor stop could lead to equipment malfunction or personal injury.

[0004] Existing motors often lack effective auxiliary braking structures, causing rotating parts to continue rotating for a period of time after power is cut off. This is due to inertia and limitations in the motor's design; some motors cannot immediately generate braking force to stop rotation when power is cut off. This is particularly evident in high-speed motors, where the large moment of inertia results in weak braking and delayed stopping, thus posing a safety hazard. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies where motors cannot immediately generate braking force to stop rotation when power is cut off, resulting in ineffective braking, delayed stopping time, and certain safety hazards. This invention provides a motor with a braking structure. By installing a locking device at the tail of the motor body, the locking shaft assembly in the locking device can quickly decelerate the motor to a stop by gripping the connecting turntable when the motor body stops. Therefore, when the load on the turntable malfunctions and requires rapid deceleration, the locking device can quickly decelerate and brake the output shaft of the motor body, thereby greatly reducing the time it takes for the load to stop from a high-speed rotating state, thus improving the safety of the motor application.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] This utility model discloses a motor with a braking structure, including a motor body;

[0008] A gearbox is located at the front end of the motor body and is connected to the motor body for transmission. A mounting flange is fixedly installed on the output shaft of the gearbox.

[0009] A turntable is bolted to the mounting flange so that the turntable is synchronized with the output shaft of the gearbox;

[0010] A locking device is provided at the tail of the motor body, the locking device including a connecting turntable and a locking shaft assembly for clamping the connecting turntable;

[0011] The output shaft of the motor body extends from the end of the motor body to the outside and is fixedly connected to the connecting disc, so that when the motor body is running, the connecting disc rotates synchronously with the output shaft of the motor body. The locking shaft assembly is installed at the tail of the motor body, and the locking shaft assembly can reduce the speed of the connecting disc by clamping the connecting disc.

[0012] When this motor is in use, the load is first fixed on the turntable. The turntable is driven to rotate by the motor body and the gearbox, which in turn drives the load mounted on the turntable to rotate synchronously. The device has a locking device installed at the tail of the motor body. The locking shaft assembly in the locking device can quickly decelerate the turntable to a stop by clamping it when the motor body stops. Therefore, when the load on the turntable malfunctions and needs to be quickly decelerated and stopped, the locking device can quickly decelerate and brake the output shaft of the motor body, thereby greatly reducing the time for the load to go from a high-speed rotating state to a stopped state, and improving the safety of the device during use.

[0013] As a further description of the above technical solution: the locking shaft assembly includes:

[0014] A retaining plate is provided at the edge of the connecting turntable and can move radially along the connecting turntable. The end of the retaining plate near the connecting turntable is provided with a clamping groove.

[0015] A fixing plate is fixed to the tail of the motor body, and the fixing plate and the bearing are fixedly connected by a return spring;

[0016] A drive mechanism, located at the tail of the motor body, is used to control the radial movement of the bearing along the rotating disc.

[0017] Based on this, the return spring can always provide a pulling force to the bearing, which makes the bearing tend to move away from the direction of the connecting turntable. Therefore, when braking and deceleration are not required, the bearing does not contact the connecting turntable. When braking and deceleration of the connecting turntable are required, the drive mechanism controls the bearing to move radially along the connecting turntable, so that the clamping groove of the bearing gradually clamps the connecting turntable for braking. When braking stops, the drive mechanism resets, and the bearing resets to separate from the connecting turntable under the elastic force of the return spring, thus ending the braking.

[0018] As a further description of the above technical solution: a tail shell is provided at the bottom of the motor body, and the drive mechanism includes:

[0019] A cylinder, which is fixedly mounted on the tail cover;

[0020] A chuck is disposed inside the tail housing. The center of the chuck is connected to the piston rod of the cylinder. The chuck is parallel to the rotating shaft and there is a gap between the chuck and the rotating shaft. A wedge-shaped pin is provided on one side edge of the chuck near the rotating shaft.

[0021] The bearing has a wedge-shaped socket on the side near the chuck, and the wedge-shaped pin fits into the wedge-shaped socket so that when the wedge-shaped pin is gradually inserted into the wedge-shaped socket, it can push the bearing to move radially toward the rotating disc, thereby achieving a clamping and braking action on the rotating disc.

[0022] As a further description of the above technical solution: the tail of the motor body is provided with a guide groove along the radial direction of the connecting disc, and a slider adapted to the guide groove is installed on the bearing. The slider is slidably assembled in the guide groove. Therefore, when the bearing is squeezed, it can move along the direction of the guide groove, that is, move radially along the connecting disc.

[0023] As a further description of the above technical solution: multiple sets of the locking shaft assembly are provided, and the multiple sets of the locking shaft assembly are arranged in a circular array with the axis of the connecting turntable as the center line.

[0024] As a further description of the above technical solution: it also includes a turntable braking device, which is installed at the front end of the gearbox. The turntable braking device can decelerate and brake the turntable by gripping it. Therefore, when the load on the turntable malfunctions and needs to be quickly decelerated and stopped, the turntable braking device can grip and decelerate the turntable. Combined with the braking of the motor body by the locking device, it achieves a dual braking effect at the front and rear, thereby greatly reducing the time for the load to go from a high-speed rotating state to a stopped state and improving the safety of the device during application.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] This motor has a locking device installed at the tail of the motor body. The locking shaft assembly in the locking device can quickly decelerate the motor body to a stop by clamping the connecting turntable when the motor body stops. Therefore, when the load on the turntable malfunctions and needs to be quickly decelerated and stopped, the locking device can quickly decelerate and brake the output shaft of the motor body, thereby greatly reducing the time for the load to go from a high-speed rotating state to a stop state, and improving the safety of the motor application.

[0027] The motor is equipped with a turntable brake device at the turntable position. The turntable brake device can slow down and brake the turntable by clamping it. Combined with the braking of the motor body by the locking device, it achieves a dual braking effect from front to back. This greatly reduces the time it takes for the load to go from a high-speed rotating state to a stop state, thus improving the safety of the device during use. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the turntable structure of this utility model;

[0030] Figure 3 This is a schematic diagram of the exploded structure of the turntable in this utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the turntable after the brake friction component has been removed in this utility model;

[0032] Figure 5 This is a schematic diagram of the pressure ring structure of this utility model;

[0033] Figure 6 This is a schematic diagram of the installation structure of the turntable braking device in this utility model;

[0034] Figure 7 This is a schematic diagram of the brake component installation structure in this utility model;

[0035] Figure 8 This is an enlarged structural diagram showing the connection position between the brake component and the wedge-shaped component in this utility model;

[0036] Figure 9 This is a schematic diagram of the installation structure of the connecting device in this utility model;

[0037] Figure 10 This is a cross-sectional structural diagram of the connecting device in this utility model;

[0038] Figure 11 This is a schematic cross-sectional view of the connecting device in this utility model;

[0039] Figure 12This is a schematic diagram of the sealing device structure in this utility model;

[0040] Figure 13 This is a schematic diagram of the sealing device installation structure in this utility model;

[0041] Figure 14 This is a schematic diagram of the installation structure of the locking mechanism of this utility model;

[0042] Figure 15 This is a schematic diagram of the locking mechanism of this utility model;

[0043] Figure 16 This is a schematic diagram of the locking shaft assembly in this utility model.

[0044] Reference numerals: 1. Motor body; 100. Front ring frame; 1000. Sealing groove; 1001. Metal ring; 101. Guide groove;

[0045] 2. Gearbox; 200. Mounting flange;

[0046] 3. Turntable; 301. Fixing screw hole; 302. Mounting screw hole; 303. Pressure ring; 3030. Limiting plate; 3031. Compression spring; 304. Clamping plate; 3040. Insert shaft; 305. Braking friction component; 306. Pressure groove; 307. Side cavity; 308. Limiting port; 309. Insertion groove;

[0047] 4. Turntable braking device; 400. Main ring frame; 4000. Cavity; 4001. Limiting groove; 401. Chassis; 402. Braking component; 4020. Wedge surface A; 4021. Limiting block; 403. Braking control mechanism; 4030. Electric push rod; 4031. Mounting plate; 4032. Top pressure plate; 404. Wedge component; 4040. Wedge surface B; 405. Rotary ring; 406. Tension spring;

[0048] 5. Connecting device; 500. Connecting kit; 5000. Socket; 501. Removal ring; 502. Insert; 5020. C-groove; 503. Hook; 504. Tightening spring;

[0049] 6. Sealing device; 600. Sealing sleeve; 601. Fixing clamp; 602. Sealing ring; 603. Soft magnetic strip; 604. Lifting lug;

[0050] 7. Locking device; 700. Cylinder; 701. Tail shell; 702. Chuck; 7020. Wedge pin; 703. Coupling turntable; 704. Locking shaft assembly; 7040. Fixing plate; 7041. Return spring; 7042. Slider; 7043. Bearing; 7044. Clamping groove; 7045. Wedge socket. Detailed Implementation

[0051] The following is in conjunction with the appendix Figures 1-16 This invention further illustrates a specific embodiment of a motor with a braking structure, overcoming the shortcomings of existing technologies where motors cannot immediately generate braking force to stop rotation when power is cut off, resulting in ineffective braking, delayed stopping time, and potential safety hazards. This motor, by installing a locking device at the tail of the motor body, utilizes a locking shaft assembly that can rapidly decelerate the motor to a stop by gripping the connecting disc when the motor body stops. Therefore, when an abnormality occurs on the load on the disc, requiring rapid deceleration and stopping, the locking device can quickly decelerate and brake the output shaft of the motor body, significantly reducing the time it takes for the load to stop from a high-speed rotating state, thus improving the safety of the motor application. This invention, a motor with a braking structure, is not limited to the embodiments described below.

[0052] Example 1:

[0053] This embodiment provides a motor with a braking structure, such as... Figure 1 , Figures 14-16 As shown, the device includes a motor body 1, a gearbox 2, a turntable 3, and a locking device 7. The gearbox 2 is located at the front end of the motor body 1 and is connected to the motor body 1 for transmission. A mounting flange 200 is fixedly installed on the output shaft of the gearbox 2. The turntable 3 is fixedly installed on the mounting flange 200 by bolts, so that the turntable 3 is synchronized with the output shaft of the gearbox 2. The locking device 7 is located at the rear end of the motor body 1 and includes a coupling turntable 703 and a locking shaft assembly 704 for clamping the coupling turntable 703.

[0054] The output shaft of the motor body 1 extends from the end of the motor body 1 to the outside and is fixedly connected to the coupling turntable 703, so that when the motor body 1 is running, the coupling turntable 703 rotates synchronously with the output shaft of the motor body 1. The locking shaft assembly 704 is installed at the tail of the motor body 1. The locking shaft assembly 704 can reduce the speed of the coupling turntable 703 by clamping the coupling turntable 703.

[0055] Working principle: When the motor is in use, the load is first fixed on the turntable 3. The turntable 3 is driven to rotate by the motor body 1 and the gearbox 2, thereby driving the load installed on the turntable 3 to rotate synchronously. The device has a locking device 7 installed at the tail of the motor body 1. The locking shaft assembly 704 in the locking device 7 can quickly reduce the speed of the motor body 1 to a stop by clamping the connecting turntable 703 when the motor body 1 stops. Therefore, when the load on the turntable 3 malfunctions and needs to be quickly reduced to a stop, the locking device 7 can quickly decelerate and brake the output shaft of the motor body 1, thereby greatly reducing the time for the load to go from high speed to a stop, and improving the safety of the device during use.

[0056] Specifically, such as Figures 14-16 As shown, in order to achieve efficient and rapid braking of the motor, in this embodiment, the locking shaft assembly 704 includes a bearing 7043, a fixing plate 7040, and a drive mechanism. The bearing 7043 is located at the edge of the connecting shaft turntable 703 and can move radially along the connecting shaft turntable 703. A clamping groove 7044 is provided at one end of the bearing 7043 near the connecting shaft turntable 703. The fixing plate 7040 is fixed to the tail of the motor body 1. The fixing plate 7040 and the bearing 7043 are fixedly connected by a return spring 7041. The drive mechanism is located at the tail of the motor body 1 and is used to control the bearing 7043 to move radially along the connecting shaft turntable 703.

[0057] Based on this, the return spring 7041 can always provide a pulling force to the bearing 7043, which makes the bearing 7043 tend to move away from the coupling turntable 703. Therefore, when braking and deceleration are not required, the bearing 7043 does not contact the coupling turntable 703. When braking and deceleration of the coupling turntable 703 are required, the drive mechanism controls the bearing 7043 to move radially along the coupling turntable 703, so that the clamping groove 7044 of the bearing 7043 gradually clamps the coupling turntable 703 for braking. When braking stops, the drive mechanism resets, and the bearing 7043 resets to separate from the coupling turntable 703 under the elastic force of the return spring 7041, thus ending the braking.

[0058] Specifically, such as Figures 14-16 As shown, in order to achieve braking of the rotating disc 703, in this embodiment, the bottom of the motor body 1 is provided with a tail shell 701, and the drive mechanism includes a cylinder 700 and a chuck 702. The cylinder 700 is fixedly installed on the tail shell 701, and the chuck 702 is disposed inside the tail shell 701. The center of the chuck 702 is connected to the piston rod of the cylinder 700. The chuck 702 is parallel to the rotating disc 703, and there is a gap between the chuck 702 and the rotating disc 703. A wedge-shaped pin 7020 is provided on one side edge of the chuck 702 near the rotating disc 703.

[0059] Among them, the bearing 7043 has a wedge-shaped insertion port 7045 on the side near the chuck 702. The wedge-shaped pin 7020 fits into the wedge-shaped insertion port 7045, so that when the wedge-shaped pin 7020 is gradually inserted into the wedge-shaped insertion port 7045, it can push the bearing 7043 to move radially toward the rotating disc 703, thereby achieving the clamping and braking of the rotating disc 703.

[0060] Specifically, such as Figures 14-16As shown, in order to enable the bearing 7043 to move radially along the connecting turntable 703, in this embodiment, the tail of the motor body 1 is provided with a guide groove 101 along the radial direction of the connecting turntable 703. A slider 7042 adapted to the guide groove 101 is installed on the bearing 7043. The slider 7042 is slidably assembled in the guide groove 101. Therefore, when the bearing 7043 is squeezed, it can move along the direction of the guide groove 101, that is, move radially along the connecting turntable 703.

[0061] Specifically, such as Figures 14-16 As shown, in order to improve the braking effect of the locking device 7, in this embodiment, multiple sets of locking shaft assemblies 704 are provided, and the multiple sets of locking shaft assemblies 704 are arranged in a ring array with the axis of the connecting turntable 703 as the center line.

[0062] Specifically, such as Figures 14-16 As shown, in order to improve the rapid braking effect of the turntable 3, this embodiment also includes a turntable braking device 4, which is installed at the front end of the reduction gearbox 2. The turntable braking device 4 can decelerate and brake the turntable 3 by gripping it. Therefore, when the load on the turntable 3 is abnormal and needs to be decelerated and stopped quickly, the turntable braking device 4 can grip and decelerate the turntable 3. Combined with the braking of the motor body 1 by the locking device 7, a dual braking effect is achieved, which greatly reduces the time for the load to go from high-speed rotation to a stop state and improves the safety of the device during application.

[0063] Example 2

[0064] This embodiment provides a locking mechanism for a gearbox turntable, such as... Figure 1 , Figures 6-8 As shown, in order to brake the turntable 3, in this embodiment, the turntable braking device 4 includes a chassis 401, a main ring frame 400, a braking element 402, and a braking control mechanism 403. The chassis 401 is fixed to the front end of the reduction gearbox 2. The main ring frame 400 adopts a circular structure and is fixed above the chassis 401. A cavity 4000 is opened in the inner wall of the main ring frame 400. The braking element 402 is movably assembled in the cavity 4000 and can move radially along the main ring frame 400. The braking control mechanism 403 is disposed inside the main ring frame 400 and is used to control the movement of the braking element 402 to brake the turntable 3.

[0065] Working principle: When it is necessary to brake the turntable 3, the braking control mechanism 403 controls the braking element 402 to move radially along the main ring frame 400, and the braking of the turntable 3 is achieved by the braking element 402 gradually clamping the turntable 3.

[0066] Specifically, such as Figure 1 , Figures 6-8As shown, in order to brake the turntable 3, in this embodiment, the brake element 402 has an arc-shaped structure. The brake element 402 is connected to the inner wall of the cavity 4000 by a tension spring 406, so that the brake element 402 has a tendency to move away from the turntable 3 under the tension of the tension spring 406, thereby ensuring that when the turntable 3 does not need to be braked, the brake element 402 remains separated from the turntable 3 and does not affect the rotation of the turntable 3.

[0067] Specifically, such as Figure 1 , Figures 6-8 As shown, in order to achieve movement control of the brake 402, in this embodiment, the brake 402 has a wedge-shaped surface A4020 on one side inside the cavity 4000, and a wedge 404 is provided inside the cavity 4000 at the wedge-shaped surface A4020 of the brake 402. A wedge-shaped surface B4040 is provided on the side of the wedge 404 that contacts the wedge-shaped surface A4020. The wedge 404 can rotate around the main ring frame 400 under the drive of the brake control mechanism 403. When the wedge 404 rotates, it can squeeze the brake 402 outward through the action of the wedge-shaped surface A4020 and the wedge-shaped surface B4040, thereby achieving the effect of gradually tightening the turntable 3 for braking.

[0068] Specifically, such as Figures 6-8 As shown, in order to enable the wedge 404 to rotate circumferentially along the main ring frame 400, in this embodiment, a rotating ring 405 is rotatably installed on the lower inner wall of the main ring frame 400, and the wedge 404 is fixedly installed on the rotating ring 405. The braking control mechanism 403 can drive the rotating ring 405 to rotate, so that the wedge 404 can rotate circumferentially along the main ring frame 400.

[0069] Specifically, such as Figures 6-8 As shown, in order to achieve rotation control of the rotating ring 405, in this embodiment, the braking control mechanism 403 includes a mounting plate 4031, a top pressure plate 4032, and an electric push rod 4030. The mounting plate 4031 is fixedly mounted on the chassis 401, the top pressure plate 4032 is fixedly mounted on the inner wall of the rotating ring 405, and the electric push rod 4030 is fixedly mounted on one side of the mounting plate 4031. The piston rod of the electric push rod 4030 rests on one side of the top pressure plate 4032. This structural arrangement allows the rotating ring 405 to rotate by pushing the top pressure plate 4032 when the electric push rod 4030 is running, thereby enabling the wedge 404 to rotate circumferentially along the main ring frame 400.

[0070] Specifically, such as Figure 8As shown, in order to make the movement of the brake 402 more stable, in this embodiment, limiting blocks 4021 are provided on both sides of the brake 402, and limiting grooves 4001 are provided on the inner wall of the cavity 4000 along the moving direction of the brake 402. The limiting blocks 4021 are slidably assembled in the limiting grooves 4001. Therefore, when the brake 402 moves, it will be restricted by the limiting blocks 4021, making the movement more stable and preventing it from falling out.

[0071] Example 3

[0072] This embodiment provides a gearbox load turntable structure, such as... Figures 1-5 As shown, in order to improve the braking effect of the turntable 3, in this embodiment, a braking friction element 305 is provided on the edge of the turntable 3. The braking friction element 305 is detachably installed and protrudes from the edge of the turntable 3. The two ends of the braking friction element 305 are rounded. This structure allows the turntable braking device 4 to generate friction with the braking friction element 305 when braking the turntable 3, thereby avoiding direct contact with the turntable 3. This results in better braking effect of the device and prevents wear on the turntable 3, thus extending the service life of the turntable 3. At the same time, since the braking friction element 305 is detachably installed, it can be replaced independently when wear occurs.

[0073] Specifically, such as Figures 1-5 As shown, in order to achieve the detachable installation of the brake friction component 305, in this embodiment, a side cavity 307 is provided on the side of the turntable 3, and the brake friction component 305 is inserted into the side cavity 307. A groove 309 is provided on the upper surface of the turntable 3 at the side cavity 307. A retaining plate 304 is fixedly installed in the groove 309 by bolts. The bottom insert shaft 3040 of the retaining plate 304 is inserted into the brake friction component 305 to fix the brake friction component 305. When the retaining plate 304 is removed, the brake friction component 305 can be taken out from the side cavity 307 to realize the disassembly and replacement of the brake friction component 305.

[0074] Specifically, such as Figures 2-5 As shown, in order to install the turntable 3, in this embodiment, the upper surface of the turntable 3 is provided with a plurality of fixing screw holes 301. The positions of the fixing screw holes 301 correspond one-to-one with the screw hole positions on the mounting flange 200. The turntable 3 and the mounting flange 200 can be fixedly connected by inserting bolts into the fixing screw holes 301.

[0075] Specifically, such as Figures 2-5 As shown, in order to mount the load object, in this embodiment, the upper surface array of the turntable 3 is also provided with a plurality of mounting screw holes 302 corresponding to the load object.

[0076] Specifically, such as Figures 3-5As shown, in order to improve the stability of the load after it is fixed, in this embodiment, a pressure groove 306 is provided on the upper surface of the turntable 3, and a pressure ring 303 is movably fitted on the inner wall of the pressure groove 306. A compression spring 3031 is installed between the pressure ring 303 and the bottom surface of the pressure groove 306. The compression spring 3031 can apply an outward pushing force to the pressure ring 303. Therefore, when the load is installed, as the distance between the load and the turntable 3 decreases, the pressure ring 303 can gradually tighten the load, so that the entire load has an outward pressure. This can reduce the loosening of the load during long-term rotation. It should be noted that as the load rotates for a long time, the bolts that install the load often become loose. The setting of the pressure ring 303 can provide an outward pushing force to the load. Therefore, even if the bolts become slightly loose, the load can still remain stable.

[0077] Specifically, such as Figures 3-5 As shown, in order to prevent the pressure ring 303 from "derailing", in this embodiment, a limiting piece 3030 is provided on the lower inner side of the pressure ring 303, and a limiting port 308 is provided on the inner wall of the pressure groove 306 at the position of the limiting piece 3030. The limiting piece 3030 is movably engaged in the limiting port 308, so no matter how the pressure ring 303 moves, it will not leave the pressure groove 306.

[0078] Example 4

[0079] This embodiment provides a detachable gearbox mounting structure, such as... Figures 9-11 As shown, in order to reduce the maintenance cost of the motor, in this embodiment, the gearbox 2 is detachably connected to the motor body 1 through the connecting device 5. This structure allows the gearbox 2 or the motor body 1 to be disassembled and the damaged part replaced when the gearbox 2 or the motor body 1 is abnormally damaged, without having to replace the entire motor body 1 and gearbox 2, thus reducing the maintenance cost of the motor.

[0080] Specifically, such as Figures 9-11 As shown, in order to achieve a detachable connection between the gearbox 2 and the motor body 1 via the connecting device 5, in this embodiment, the connecting device 5 includes a connecting kit 500 and a plug 502. The connecting kit 500 is fixedly installed at the front end of the motor body 1, and a socket 5000 is provided on the surface of the connecting kit 500. The plug 502 is fixedly installed at the bottom of the gearbox 2 and is inserted into the socket 5000. A hook 503 is provided in the socket 5000 to engage the plug 502.

[0081] Specifically, such as Figures 9-11As shown, in order to achieve the locking of the plug 502, in this embodiment, a C-shaped groove 5020 is provided on the side of the plug 502, and a pressing spring 504 is provided inside the socket 5000 to push the hook 503 to move and engage inside the C-shaped groove 5020. This structure is designed so that when the plug 502 is inserted into the socket 5000, the hook 503 is pushed into the C-shaped groove 5020 under the elastic force of the pressing spring 504, thereby achieving the locking of the plug 502.

[0082] Specifically, such as Figures 9-11 As shown, in order to achieve the movement control of the hook 503 and thus facilitate the disassembly of the gearbox 2, in this embodiment, a disassembly ring 501 is rotatably mounted on the outside of the connecting kit 500. One end of the hook 503 is fixedly mounted on the inner wall of the disassembly ring 501. Therefore, when the disassembly ring 501 is rotated externally, the position of the hook 503 changes. When the hook 503 is completely moved out of the C-shaped groove 5020, the plug 502 can be pulled out from the socket 5000 and removed, thus realizing the disassembly of the gearbox 2.

[0083] Specifically, such as Figures 9-11 As shown, in order to ensure the stable connection between the gearbox 2 and the motor body 1, in this embodiment, multiple plug-in 502 are provided. The multiple plug-in 502 are arranged in a circular array with the center of the gearbox 2 as the axis. The socket 5000 and the hook 503 correspond one-to-one with the plug-in 502.

[0084] Specifically, such as Figures 9-11 As shown, in order to facilitate the rotation of the disassembly ring 501, in this embodiment, the outer wall of the disassembly ring 501 is embedded with multiple rubber pads to increase the friction of rotation and prevent slippage.

[0085] Example 5

[0086] This embodiment provides a sealing mechanism for the connection position of the gearbox, such as... Figure 9 , Figure 12 and Figure 13 As shown, in order to ensure the sealing of the connection between the gearbox 2 and the motor body 1, in this embodiment, a sealing device 6 is provided at the connection between the gearbox 2 and the motor body 1. The sealing device 6 covers the connecting device 5. The sealing device 6 is elastic and can expose the connecting device 5 by rolling it upward.

[0087] Specifically, such as Figure 9 , Figure 12 and Figure 13As shown, in order to realize the rollable structure of the sealing device 6 and facilitate the control of the connecting device 5, in this embodiment, the sealing device 6 includes a sealing sleeve 600. The sealing sleeve 600 adopts a circular sleeve structure. A fixing hoop 601 is provided on the upper part of the sealing sleeve 600 along the circumferential direction. The fixing hoop 601 presses and fixes the sealing sleeve 600 to the surface of the gearbox 2.

[0088] Specifically, such as Figure 9 , Figure 12 and Figure 13 As shown, in order to improve the sealing effect at the connection between the gearbox 2 and the motor body 1, in this embodiment, a front ring frame 100 is provided on the outer edge of the front end of the motor body 1. The outer diameter of the front ring frame 100 is the same as that of the connecting device 5. An annular sealing groove 1000 is provided on the surface of the front ring frame 100 in the circumferential direction. An elastic sealing ring 602 is embedded on the inner side below the sealing sleeve 600. When the sealing sleeve 600 covers the connecting device 5, the sealing ring 602 is engaged in the sealing groove 1000. This can greatly improve the sealing effect at the connection between the gearbox 2 and the motor body 1.

[0089] Specifically, such as Figure 9 , Figure 12 and Figure 13 As shown, in order to further improve the sealing effect at the connection between the gearbox 2 and the motor body 1, in this embodiment, a metal ring 1001 is embedded on the surface of the front ring frame 100 below the sealing groove 1000, and a soft magnetic strip 603 is embedded in the lower part of the sealing sleeve 600. When the sealing sleeve 600 covers the connecting device 5, the soft magnetic strip 603 is attracted and connected to the metal ring 1001, thereby further improving the sealing effect at the connection between the gearbox 2 and the motor body 1.

[0090] Specifically, such as Figure 9 , Figure 12 and Figure 13 As shown, in order to facilitate the upward and downward rolling of the sealing sleeve 600 and thus facilitate the control of the connecting device 5, in this embodiment, the cross-section of the sealing ring 602 is semi-circular. Therefore, the sealing ring 602 can be more easily inserted into the sealing groove 1000, thus facilitating the upward and downward rolling of the sealing sleeve 600.

[0091] Specifically, such as Figure 9 , Figure 12 and Figure 13 As shown, in order to further facilitate the up-and-down rolling of the sealing sleeve 600, in this embodiment, a lifting lug 604 is provided on the lower edge of the outer surface of the sealing sleeve 600, and the sealing sleeve 600 can be rolled up by pulling the lifting lug 604.

[0092] Specifically, in this embodiment, multiple flaps 604 are provided, and the multiple flaps 604 are distributed in a ring array.

[0093] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A motor with a braking structure, characterized in that: include: Motor body (1); A reduction gearbox (2) is located at the front end of the motor body (1) and is connected to the motor body (1) in a transmission manner. A mounting flange (200) is fixedly installed on the output shaft of the reduction gearbox (2). A turntable (3) is fixedly mounted on the mounting flange (200) by bolts, so that the turntable (3) is synchronized with the output shaft of the gearbox (2); A locking device (7) is provided at the tail of the motor body (1). The locking device (7) includes a connecting turntable (703) and a locking shaft assembly (704) for clamping the connecting turntable (703). The output shaft of the motor body (1) extends from the end of the motor body (1) to the outside and is fixedly connected to the connecting disc (703). When the motor body (1) is running, the connecting disc (703) rotates synchronously with the output shaft of the motor body (1). The locking shaft assembly (704) is installed at the tail of the motor body (1). The locking shaft assembly (704) can slow down and brake the connecting disc (703) by clamping the connecting disc (703).

2. The motor with a braking structure according to claim 1, characterized in that: The locking shaft assembly (704) includes: A retaining plate (7043) is disposed at the edge of the connecting turntable (703) and is capable of moving radially along the connecting turntable (703). A clamping groove (7044) is provided at one end of the retaining plate (7043) near the connecting turntable (703). A fixing plate (7040) is fixed to the tail of the motor body (1), and the fixing plate (7040) and the bearing (7043) are fixedly connected by a return spring (7041); A drive mechanism, located at the tail of the motor body (1), is used to control the radial movement of the bearing (7043) along the connecting turntable (703).

3. The motor with a braking structure according to claim 2, characterized in that: The bottom of the motor body (1) is provided with a tail shell (701), and the drive mechanism includes: A cylinder (700) is fixedly mounted on the tail cover (701); A chuck (702) is disposed inside the tail shell (701). The center of the chuck (702) is connected to the piston rod of the cylinder (700). The chuck (702) is parallel to the rotating shaft (703). There is a gap between the chuck (702) and the rotating shaft (703). A wedge-shaped pin (7020) is provided on one side edge of the chuck (702) near the rotating shaft (703). The bearing (7043) has a wedge-shaped socket (7045) on the side near the chuck (702). The wedge-shaped pin (7020) fits into the wedge-shaped socket (7045), so that when the wedge-shaped pin (7020) is gradually inserted into the wedge-shaped socket (7045), it can push the bearing (7043) to move radially toward the rotating disc (703).

4. The motor with a braking structure according to claim 3, characterized in that: The tail of the motor body (1) is provided with a guide groove (101) along the radial direction of the connecting turntable (703). A slider (7042) adapted to the guide groove (101) is installed on the bearing (7043). The slider (7042) is slidably assembled in the guide groove (101).

5. A motor with a braking structure according to claim 1, characterized in that: Multiple sets of the locking shaft assembly (704) are provided, and the multiple sets of the locking shaft assembly (704) are arranged in a ring array with the axis of the connecting turntable (703) as the center line.

6. A motor with a braking structure according to claim 1, characterized in that: It also includes a turntable braking device (4), which is installed at the front end of the gearbox (2). The turntable braking device (4) can decelerate and brake the turntable (3) by gripping the turntable (3).

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