Sealing mechanism for connection position of reduction gearbox

Abstract

The utility model discloses a sealing mechanism for a connecting position of a reduction gearbox, which is used for sealing the connecting position of a motor main body and the reduction gearbox, the motor main body and the reduction gearbox are detachably connected through a connecting device, and a sealing device is arranged at the connecting position of the reduction gearbox and the motor main body. The sealing device wraps the connecting device, the sealing device has elasticity, and the sealing device can be turned upwards to enable the connecting device to be exposed. The sealing device is suitable for the motor, the sealing device is installed at the connecting position of the motor body and the reduction gearbox, and the sealing device can wrap or expose the connecting device in a turnup mode, so that sealing of the connecting position of the motor body and the reduction gearbox can be guaranteed, and disassembly and replacement operation of the motor body and the reduction gearbox cannot be affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, especially a sealing mechanism of reduction gearbox connecting position. BACKGROUND

[0002] In modern industrial applications, the combination of motors and reduction gearboxes is a key link in achieving power transmission and control. Motors are widely used in various mechanical equipment, such as conveying systems, cranes, processing equipment, etc., while reduction gearboxes are responsible for converting the high-speed rotation of the motor into appropriate output speed and torque. The connection of the two not only needs to have good mechanical strength, but also requires excellent sealing performance to avoid the influence of the external environment on the internal mechanical components.

[0003] However, the sealing performance of the connection position between the existing motor and the reduction gearbox is often insufficient, which leads to the penetration of external substances such as water vapor and dust from the connection position. This problem is particularly serious in humid or dusty working environments, as the penetration of moisture not only directly affects the internal components of the motor and the reduction gearbox, but also causes dilution and contamination of the lubricating oil. In such an environment, the metal components of the motor and the reduction gearbox are prone to oxidation and corrosion, which may lead to rusting. Rust not only affects the normal operation of the equipment, but also may cause equipment failure and increase maintenance costs, and in severe cases, it may even cause the equipment to shut down, resulting in significant losses to production. SUMMARY

[0004] The utility model aims at overcoming the defects of insufficient sealing performance of the connection position between the existing motor and the reduction gearbox, which leads to the penetration of external substances such as water vapor and dust from the connection position, and provides a sealing mechanism for the connection position of the reduction gearbox. By installing a sealing device at the connection position between the motor body and the reduction gearbox, the sealing device can cover or expose the connection device through a rolling method, thus ensuring the sealing of the connection position between the motor body and the reduction gearbox, and not affecting the disassembly and replacement operation of the motor body and the reduction gearbox.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses a sealing mechanism for the connection position of a reduction gearbox, which is used for sealing the connection position between a motor body and a reduction gearbox. The motor body and the reduction gearbox are detachably connected through a connection device.

[0007] The connecting position of the reduction gearbox and the motor body is provided with a sealing device, the sealing device covers the connecting device, the sealing device has elasticity, the sealing device can expose the connecting device by rolling up, in normal operation of the motor, the sealing device completely covers the connecting device, the area of the connecting device is kept sealed, when the reduction gearbox and the motor body need to be disassembled, only the sealing device needs to be rolled up to expose the connecting device, the operation is convenient and fast, therefore, the connecting position of the motor body and the reduction gearbox can be sealed, and the disassembly and replacement operation of the motor body and the reduction gearbox is not affected.

[0008] As a further description of the above technical scheme: the sealing device comprises a sealing sleeve, the sealing sleeve adopts a circular ring sleeve structure, a fixed hoop is arranged on the upper side of the sealing sleeve in a circumferential direction, and the fixed hoop tightly fixes the sealing sleeve on the surface of the reduction gearbox.

[0009] As a further description of the above technical scheme: the front end of the motor body is provided with a front ring frame, the outer diameter of the front ring frame is the same as that of the connecting device, a ring-shaped sealing groove is arranged on the surface of the front ring frame in a circumferential direction, and an elastic sealing ring is embedded on the lower inner side of the sealing sleeve, when the sealing sleeve covers the connecting device, the sealing ring is clamped in the sealing groove, and the sealing effect of the connecting position of the reduction gearbox and the motor body is greatly improved.

[0010] As a further description of the above technical scheme: a metal ring is embedded and installed on the surface of the front ring frame below the sealing groove, and a soft magnetic strip is embedded in the lower inner side of the sealing sleeve, when the sealing sleeve covers the connecting device, the soft magnetic strip is connected with the metal ring through magnetic attraction, and the sealing effect of the connecting position of the reduction gearbox and the motor body is further improved.

[0011] As a further description of the above technical scheme: the cross section of the sealing ring is a semicircular structure, so that the sealing ring can be conveniently clamped into and rolled out of the sealing groove, and the sealing sleeve can be conveniently rolled up.

[0012] As a further description of the above technical scheme: the outer surface of the sealing sleeve is provided with a lifting lug at the lower edge, and the sealing sleeve can be rolled up by pulling the lifting lug.

[0013] As a further description of the above technical scheme: a plurality of lifting lugs are arranged, and the plurality of lifting lugs are arranged in a ring array.

[0014] Compared with the prior art, the utility model has the advantages of the following:

[0015] The utility model discloses a sealing device is provided at the connecting position of the reduction gearbox and motor main body, and the sealing device covers the connecting device, and the sealing device has elasticity, and the sealing device can expose the connecting device by rolling up, so that the sealing device can cover the connecting device completely when the motor normally operates, and the area of the connecting device is kept sealed, and when the reduction gearbox and the motor main body need to be disassembled, only need to roll up the sealing device upwards to expose the connecting device, and the operation is convenient and fast, so that the connecting position of the motor main body and the reduction gearbox can be sealed, and the disassembly and replacement operation of the motor main body and the reduction gearbox are not affected. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the rotating disc structure schematic diagram in the utility model;

[0018] Figure 3 It is the rotating disc explosion structure schematic diagram in the utility model;

[0019] Figure 4 It is the structure schematic diagram of the rotating disc after dismounting the brake friction piece in the utility model;

[0020] Figure 5 It is the pressure ring structure schematic diagram in the utility model;

[0021] Figure 6 It is the rotating disc brake device installation structure schematic diagram in the utility model;

[0022] Figure 7 It is the brake piece installation structure schematic diagram in the utility model;

[0023] Figure 8 It is the brake piece and wedge piece connecting position enlarged structure schematic diagram in the utility model;

[0024] Figure 9 It is the connecting device installation structure schematic diagram in the utility model;

[0025] Figure 10 It is the connecting device cross section structure schematic diagram in the utility model;

[0026] Figure 11 It is the connecting device cross section schematic diagram in the utility model;

[0027] Figure 12 It is the sealing device structure schematic diagram in the utility model;

[0028] Figure 13 It is the sealing device installation structure schematic diagram in the utility model;

[0029] Figure 14 It is the schematic diagram of lock device installation structure in the utility model;

[0030] Figure 15 It is the schematic diagram of lock device structure in the utility model;

[0031] Figure 16 It is the schematic diagram of lock shaft assembly structure in the utility device.

[0032] Reference signs: 1, motor main body;100, front ring stand;1000, sealing groove;1001, metal ring;101, guide groove;

[0033] 2, reduction gearbox;200, mounting flange;

[0034] 3, rotary table;301, fixed screw hole;302, mounting screw hole;303, compression ring;3030, limiting sheet;3031, compression spring;304, clamping plate;3040, plug shaft;305, brake friction part;306, compression groove;307, side cavity;308, limiting port;309, embedded groove;

[0035] 4, rotary table brake device;400, main ring stand;4000, cavity;4001, limiting groove;401, bottom disc;402, brake part;4020, wedge surface A;4021, limiting block;403, brake control mechanism;4030, electric push rod;4031, mounting plate;4032, top pressing plate;404, wedge part;4040, wedge surface B;405, rotary ring;406, tension spring;

[0036] 5, connecting device;500, connecting kit;5000, socket;501, dismounting ring;502, plug-in part;5020, C-shaped groove;503, clamping hook;504, jacking spring;

[0037] 6, sealing device;600, sealing sleeve;601, fixed hoop;602, sealing ring;603, soft magnetic strip;604, lifting lug;

[0038] 7, lock device;700, air cylinder;701, tail shell;702, chuck;7020, wedge-shaped latch;703, connecting shaft rotary table;704, lock shaft assembly;7040, fixed plate;7041, reset spring;7042, sliding block;7043, clamping tile;7044, clamping groove;7045, wedge-shaped socket. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings Figures 1-16The utility model discloses a sealing mechanism of connecting position of reduction gearbox, which overcomes the defects of poor sealing performance of the connecting position of the motor and the reduction gearbox in the prior art, and makes the external substances such as water vapor and dust easily penetrate from the connecting position.

[0040] Embodiment 1

[0041] This embodiment gives a kind of reduction gearbox with safety self-locking function, as shown in Figure 1 、 Figures 14-16 The utility model discloses a sealing mechanism of connecting position of reduction gearbox, which overcomes the defects of poor sealing performance of the connecting position of the motor and the reduction gearbox in the prior art, and makes the external substances such as water vapor and dust easily penetrate from the connecting position.

[0042] The output shaft of motor body 1 extends to the outside from the tail end of motor body 1 and is fixedly connected with the continuous shaft turntable 703, so that the continuous shaft turntable 703 rotates synchronously with the output shaft of motor body 1 when motor body 1 operates.

[0043] Working principle: when the motor is applied, first, the load object is fixed on the turntable 3, and the turntable 3 is driven to rotate by the motor body 1 and the reduction gearbox 2, thereby driving the load object installed on the turntable 3 to rotate synchronously. The locking device 7 is installed at the tail end of the motor body 1, and the locking shaft assembly 704 in the locking device 7 can quickly reduce the speed of the continuous shaft turntable 703 to stop rotating by holding the continuous shaft turntable 703 when the motor body 1 stops. Therefore, when the load object on the turntable 3 needs to be quickly reduced and stopped due to abnormality, the locking device 7 can quickly reduce the speed of the output shaft of the motor body 1, thereby greatly reducing the time from high-speed rotation to stop state of the load object and improving the safety of the device when applied.

[0044] Specifically, as shown in Figures 14-16As shown, in order to realize the high efficient and fast braking of the motor, in the embodiment, the shaft locking assembly 704 includes a clamping shoe 7043, a fixed plate 7040 and a driving mechanism, wherein the clamping shoe 7043 is arranged at the edge position of the shaft connecting disc 703 and can move along the radial direction of the shaft connecting disc 703, the clamping shoe 7043 is provided with a clamping groove 7044 at one end close to the shaft connecting disc 703, the fixed plate 7040 is fixed to the tail portion of the motor body 1, the fixed plate 7040 is fixedly connected with the clamping shoe 7043 through a reset spring 7041, and the driving mechanism is arranged at the tail portion of the motor body 1 and is used for controlling the clamping shoe 7043 to move along the radial direction of the shaft connecting disc 703.

[0045] Based on this, the reset spring 7041 can always provide a pulling force to the clamping shoe 7043, which makes the clamping shoe 7043 have a movement trend of moving away from the shaft connecting disc 703, so that the clamping shoe 7043 is not in contact with the shaft connecting disc 703 when the braking and deceleration is not needed, when the shaft connecting disc 703 needs to be braked and decelerated, the driving mechanism controls the clamping shoe 7043 to move along the radial direction of the shaft connecting disc 703, so that the clamping groove 7044 of the clamping shoe 7043 gradually clamps and brakes the shaft connecting disc 703, when the braking stops, the driving mechanism resets, and the clamping shoe 7043 resets to separate from the shaft connecting disc 703 under the elastic force of the reset spring 7041, and the braking ends.

[0046] Specifically, as shown in the figure, Figures 14-16 In order to realize the braking of the shaft connecting disc 703, in the embodiment, the bottom of the motor body 1 is provided with a tail shell 701, the driving mechanism includes a gas cylinder 700 and a chuck 702, the gas cylinder 700 is fixedly installed on the tail shell 701, the chuck 702 is arranged in the tail shell 701, the center of the chuck 702 is connected with the piston rod of the gas cylinder 700, the chuck 702 is parallel to the shaft connecting disc 703, there is a gap between the chuck 702 and the shaft connecting disc 703, and the chuck 702 is provided with a wedge-shaped latch 7020 at the side edge close to the shaft connecting disc 703.

[0047] The side of the clamping shoe 7043 close to the chuck 702 is provided with a wedge-shaped socket 7045, the wedge-shaped latch 7020 is matched with the wedge-shaped socket 7045, so that when the wedge-shaped latch 7020 is gradually inserted into the wedge-shaped socket 7045, the clamping shoe 7043 can be pushed to move along the radial direction of the shaft connecting disc 703 to the direction of the shaft connecting disc 703, thereby realizing the clamping and braking of the shaft connecting disc 703.

[0048] Specifically, as shown in the figure, Figures 14-16As shown, in order to enable the wafer 7043 to move along the radial direction of the connecting shaft turntable 703, in this embodiment, a tail portion of the motor body 1 is provided with a guide groove 101 along the radial direction of the connecting shaft turntable 703, and the wafer 7043 is provided with a sliding block 7042 matched with the guide groove 101, and the sliding block 7042 is slidingly assembled in the guide groove 101, so that when the wafer 7043 is extruded, it can move along the direction of the guide groove 101, that is, along the radial direction of the connecting shaft turntable 703.

[0049] Specifically, as shown in Figures 14-16 , in order to improve the braking effect of the locking device 7, in this embodiment, a plurality of sets of locking shaft assemblies 704 are arranged, and the plurality of sets of locking shaft assemblies 704 are arranged in a ring array with the axis of the connecting shaft turntable 703 as the center line.

[0050] Specifically, as shown in Figures 14-16 , in order to improve the rapid braking effect of the turntable 3, in this embodiment, a turntable braking device 4 is further included, which is installed at the front end of the speed reducer 2, and the turntable braking device 4 can brake the turntable 3 by tightly holding it, so that when the load object on the turntable 3 appears abnormal and needs to be quickly slowed down and stopped, the turntable braking device 4 can tightly hold and brake the turntable 3, and cooperate with the braking of the motor body 1 by the locking device 7 to realize double braking effect, thereby greatly reducing the time for the load object to change from high-speed rotation to stop state, and improving the safety of the device when applied.

[0051] Embodiment 2

[0052] This embodiment gives a locking mechanism of a speed reducer turntable, as shown in Figure 1 , Figures 6-8 , 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 member 402 and a braking control mechanism 403, wherein the chassis 401 is fixed to the front end of the speed reducer 2, the main ring frame 400 adopts a circular ring structure and is fixed above the chassis 401, a cavity 4000 is formed in the inner wall of the main ring frame 400, the braking member 402 is movably assembled in the cavity 4000 and can move along the radial direction of the main ring frame 400, and the braking control mechanism 403 is arranged on the inner side of the main ring frame 400 and is used to control the movement of the braking member 402 to brake the turntable 3.

[0053] When the turntable 3 needs to be braked, the braking control mechanism 403 controls the braking member 402 to move along the radial direction of the main ring frame 400, and the turntable 3 is braked by gradually being held and clamped by the braking member 402.

[0054] Specifically, as shown in Figure 1 , Figures 6-8As shown, in order to realize the braking of the rotating disc 3, in the embodiment, the brake member 402 is in a circular arc structure, and the brake member 402 is connected with the inner wall of the cavity 4000 through the tension spring 406, so that the brake member 402 has a movement trend of moving away from the rotating disc 3 under the tension of the tension spring 406, thereby ensuring that the brake member 402 keeps a state of being separated from the rotating disc 3 when the rotating disc 3 does not need to be braked, and does not affect the rotation of the rotating disc 3.

[0055] Specifically, as shown in Figure 1 , Figures 6-8 , in order to realize the movement control of the brake member 402, in the embodiment, one side of the brake member 402 inside the cavity 4000 is provided with a wedge surface A4020, and the cavity 4000 inside is provided with a wedge member 404 at the wedge surface A4020 of the brake member 402. The wedge member 404 is provided with a wedge surface B4040 on the side in contact with the wedge surface A4020, and the wedge member 404 can rotate along the circumference of the main ring frame 400 under the driving of the brake control mechanism 403. When the wedge member 404 rotates, the wedge surface A4020 and the wedge surface B4040 can extrude the brake member 402 to move outward, thereby realizing the effect of gradually clamping and braking the rotating disc 3.

[0056] Specifically, as shown in Figures 6-8 , in order to realize the rotation of the wedge member 404 along the circumference of the main ring frame 400, in the embodiment, the inner wall of the main ring frame 400 is rotatably installed with a rotating ring 405, and the wedge member 404 is fixedly installed on the rotating ring 405. The brake control mechanism 403 can drive the rotation of the rotating ring 405, so that the wedge member 404 can rotate along the circumference of the main ring frame 400.

[0057] Specifically, as shown in Figures 6-8 , in order to realize the rotation control of the rotating ring 405, in the embodiment, the brake control mechanism 403 includes a mounting plate 4031, a pressing plate 4032 and an electric push rod 4030. The mounting plate 4031 is fixedly installed on the bottom disc 401, the pressing plate 4032 is fixedly installed on the inner wall of the rotating ring 405, and the electric push rod 4030 is fixedly installed on one side of the mounting plate 4031, and the piston rod of the electric push rod 4030 is on one side of the pressing plate 4032. Such a structure can drive the rotating ring 405 to rotate by pushing the pressing plate 4032 when the electric push rod 4030 operates, thereby enabling the wedge member 404 to rotate along the circumference of the main ring frame 400.

[0058] Specifically, as shown in Figure 8As shown in the figure, in order to make the brake 402 move more stably, in this embodiment, the brake 402 is provided with a limiting block 4021 on both sides, and the inner wall of the cavity 4000 is provided with a limiting groove 4001 along the moving direction of the brake 402. The limiting block 4021 is slidingly assembled in the limiting groove 4001, so that when the brake 402 moves, it will be limited by the limiting block 4021, and the movement will be more stable and will not be taken out.

[0059] Embodiment 3

[0060] This embodiment gives a kind of deceleration box load turntable structure, as shown in Figures 1-5 As shown in the figure, in order to improve the braking effect of the turntable 3, in this embodiment, the edge of the turntable 3 is provided with a brake friction piece 305, which is detachably installed. The brake friction piece 305 protrudes from the edge of the turntable 3, and the two ends of the brake friction piece 305 are transitioned with a circular arc. Such a structure makes the turntable brake device 4 generate friction with the brake friction piece 305 when the turntable brake device 4 brakes the turntable 3, thereby avoiding direct contact with the turntable 3, so that the braking effect of the device is better and the turntable 3 is not worn out, which improves the service life of the turntable 3. At the same time, since the brake friction piece 305 adopts a detachable mounting structure, when the brake friction piece 305 is worn out, it can be replaced independently.

[0061] Specifically, as shown in the figure Figures 1-5 In order to realize the detachable installation of the brake friction piece 305, in this embodiment, the side surface of the turntable 3 is provided with a side cavity 307, and the brake friction piece 305 is inserted and assembled in the side cavity 307. The upper surface of the turntable 3 is provided with an embedding groove 309 at the side cavity 307, and a clamping plate 304 is fixedly installed in the embedding groove 309 by inserting a bolt. The bottom of the clamping plate 304 is inserted into the brake friction piece 305 through a shaft 3040, so as to fix the brake friction piece 305. When the clamping plate 304 is disassembled, the brake friction piece 305 can be taken out from the side cavity 307, so as to realize the disassembly and replacement of the brake friction piece 305.

[0062] Specifically, as shown in the figure Figures 2-5 In order to realize the installation of the turntable 3, in this embodiment, the upper surface of the turntable 3 is arrayed with a plurality of fixing screw holes 301, and the positions of the fixing screw holes 301 correspond to the positions of the screw holes on the mounting flange 200 one by one. By inserting a bolt into the fixing screw hole 301, the turntable 3 and the mounting flange 200 can be fixedly connected.

[0063] Specifically, as shown in the figure Figures 2-5 In order to install the load object, in this embodiment, the upper surface of the turntable 3 is also arrayed with a plurality of mounting screw holes 302 corresponding to the load object.

[0064] Specifically, as shown in the figure Figures 3-5As shown, in order to improve the stability of the fixed load object, in this embodiment, the upper surface of the rotating disc 3 is provided with a pressing groove 306, and a pressing ring 303 is movably assembled on the inner wall of the pressing groove 306. A compression spring 3031 is installed between the pressing ring 303 and the bottom surface of the pressing groove 306. The compression spring 3031 can apply an outward pressing force to the pressing ring 303. Therefore, when the load object is installed, as the distance between the load object and the rotating disc 3 decreases, the pressing ring 303 can gradually press the load object, so that the entire load object has an outward pressure. In this way, the loosening of the load object during long-time rotation can be reduced. It should be noted that the load object is installed by bolts, and the bolts may be loosened over time. However, the provision of the pressing ring 303 can provide an outward thrust to the load object, so that the load object can remain stable even if the bolts are slightly loosened.

[0065] Specifically, as shown in Figures 3-5 In order to prevent the pressing ring 303 from "derailing", in this embodiment, a limiting piece 3030 is arranged on the inner side of the pressing ring 303, and a limiting port 308 is arranged on the inner wall of the pressing groove 306 at the position of the limiting piece 3030. The limiting piece 3030 is movably clamped in the limiting port 308. Therefore, no matter how the pressing ring 303 moves, it will not be separated from the pressing groove 306.

[0066] Embodiment 4

[0067] This embodiment provides a detachable reduction gearbox mounting structure, as shown in Figures 9-11 In order to reduce the maintenance cost of the motor, in this embodiment, the reduction gearbox 2 is detachably connected with the motor body 1 through the connecting device 5. Such a structure makes it possible to detach the reduction gearbox 2 or the motor body 1 when they are abnormally damaged, and then replace the damaged part, without the need to replace the entire motor body 1 and the reduction gearbox 2, thereby reducing the maintenance cost of the motor.

[0068] Specifically, as shown in Figures 9-11 In order to achieve the detachable connection of the reduction gearbox 2 with the motor body 1 through the connecting device 5, in this embodiment, the connecting device 5 includes a connecting sleeve 500 and a plug-in part 502. The connecting sleeve 500 is fixedly installed on the front end of the motor body 1, and the connecting sleeve 500 is provided with a socket 5000 on the surface. The plug-in part 502 is fixedly installed on the bottom of the reduction gearbox 2, and is inserted into the socket 5000. The socket 5000 is provided with a clamping hook 503 capable of clamping the plug-in part 502.

[0069] Specifically, as shown in Figures 9-11As shown, in order to realize the locking of the plug-in part 502, in the embodiment, the side of the plug-in part 502 is provided with a C-shaped groove 5020, and the inside of the socket 5000 is provided with a tightening spring 504 capable of pushing the clamping hook 503 to move and clamp inside the C-shaped groove 5020. Such structure setting makes the clamping hook 503 be clamped in the C-shaped groove 5020 under the elastic force of the tightening spring 504 when the plug-in part 502 is inserted into the inside of the socket 5000, thereby realizing the locking of the plug-in part 502.

[0070] Specifically, as shown in Figures 9-11 , in order to realize the activity control of the clamping hook 503, thereby facilitating the disassembly of the speed reducer 2, in the embodiment, the outside of the connecting sleeve 500 is rotatably installed with a dismounting ring 501, and one end of the clamping hook 503 is fixedly installed on the inner wall of the dismounting ring 501. Therefore, when the dismounting ring 501 is rotated outside, the position of the clamping hook 503 changes, and when the clamping hook 503 is completely moved out of the inside of the C-shaped groove 5020, the plug-in part 502 can be pulled out and taken off from the socket 5000, that is, the disassembly of the speed reducer 2 can be realized.

[0071] Specifically, as shown in Figures 9-11 , in order to ensure the stable connection of the speed reducer 2 and the motor body 1, in the embodiment, a plurality of plug-in parts 502 are provided, and the plurality of plug-in parts 502 are arranged in a ring array with the center of the speed reducer 2 as the axis, and the socket 5000 and the clamping hook 503 are one-to-one corresponding to the plug-in part 502.

[0072] Specifically, as shown in Figures 9-11 , in order to facilitate the rotation of the dismounting ring 501, in the embodiment, a plurality of rubber pads are embedded on the outer wall of the dismounting ring 501, for increasing the friction force of rotation and avoiding the situation of slipping.

[0073] Embodiment 5

[0074] The embodiment gives a sealing mechanism of the connection position of the speed reducer, as shown in Figure 9 , Figure 12 and Figure 13 , in order to ensure the sealing of the connection position of the speed reducer 2 and the motor body 1, in the embodiment, the connection position of the speed reducer 2 and the motor body 1 is provided with a sealing device 6, the sealing device 6 covers the connecting device 5, the sealing device 6 has elasticity, and the sealing device 6 can expose the connecting device 5 by rolling up.

[0075] Specifically, as shown in Figure 9 , Figure 12 and Figure 13As shown in the drawings, in order to realize the rollable structure of the sealing device 6, facilitate the control of the connecting device 5, in the embodiment, the sealing device 6 comprises a sealing sleeve 600, the sealing sleeve 600 adopts a circular ring sleeve structure, and a fixed hoop 601 is arranged on the upper side of the sealing sleeve 600 in the circumferential direction, and the fixed hoop 601 tightly fixes the sealing sleeve 600 on the surface of the reduction gearbox 2.

[0076] Specifically, as shown in Figure 9 , Figure 12 and Figure 13 , in order to improve the sealing effect of the connection position of the reduction gearbox 2 and the motor body 1, in the embodiment, the front end outer edge of the motor body 1 is provided with a front ring frame 100, the outer diameter of the front ring frame 100 is the same as that of the connecting device 5, a ring-shaped sealing groove 1000 is arranged on the surface of the front ring frame 100 in the circumferential direction, and a sealing ring 602 with elasticity is embedded on the lower inner side of the sealing sleeve 600, when the sealing sleeve 600 covers the connecting device 5, the sealing ring 602 is clamped in the sealing groove 1000, so that the sealing effect of the connection position of the reduction gearbox 2 and the motor body 1 can be greatly improved.

[0077] Specifically, as shown in Figure 9 , Figure 12 and Figure 13 , in order to further improve the sealing effect of the connection position of the reduction gearbox 2 and the motor body 1, in the embodiment, a metal ring 1001 is embedded and installed on the surface of the front ring frame 100 below the sealing groove 1000, and a soft magnetic strip 603 is embedded on the lower inner side of the sealing sleeve 600, when the sealing sleeve 600 covers the connecting device 5, the soft magnetic strip 603 is attracted and connected with the metal ring 1001, so that the sealing effect of the connection position of the reduction gearbox 2 and the motor body 1 is further improved.

[0078] Specifically, as shown in Figure 9 , Figure 12 and Figure 13 , in order to facilitate the upward and downward rolling of the sealing sleeve 600, thereby facilitating the control of the connecting device 5, in the embodiment, the cross section of the sealing ring 602 is a semicircular structure, so that the sealing ring 602 can be more conveniently clamped into and rolled out of the sealing groove 1000, thereby facilitating the upward and downward rolling of the sealing sleeve 600.

[0079] Specifically, as shown in Figure 9 , Figure 12 and Figure 13 , in order to further facilitate the upward and downward rolling of the sealing sleeve 600, in the embodiment, an ear 604 is arranged on the lower edge of the outer surface of the sealing sleeve 600, and the sealing sleeve 600 can be rolled upward by pulling the ear 604.

[0080] Specifically, in the embodiment, a plurality of ears 604 are arranged, and the plurality of ears 604 are arranged in a ring array.

[0081] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A sealing mechanism for the connection location of a motor main body (1) and a reduction gear box (2) for sealing the connection location of the motor main body (1) and the reduction gear box (2), characterized by: The motor body (1) and the reduction gearbox (2) are detachably connected through a connecting device (5); A sealing device (6) is arranged at the connecting position of the reduction gearbox (2) and the motor body (1), the sealing device (6) covers the connecting device (5), the sealing device (6) has elasticity, and the sealing device (6) can expose the connecting device (5) by rolling up.

2. A sealing mechanism for a reduction gearbox connection location according to claim 1, characterized in that: The sealing device (6) comprises a sealing sleeve (600), the sealing sleeve (600) adopts a circular ring sleeve structure, a fixed hoop (601) is arranged on the upper portion of the sealing sleeve (600) in a circumferential direction, and the fixed hoop (601) tightly fixes the sealing sleeve (600) on the surface of the reduction gearbox (2).

3. A sealing mechanism for a reduction gearbox connection location according to claim 2, characterised in that: The front end of the motor body (1) is provided with a front ring frame (100), the outer diameter of the front ring frame (100) is the same as that of the connecting device (5), a ring-shaped sealing groove (1000) is formed in the surface of the front ring frame (100) in a circumferential direction, an elastic sealing ring (602) is embedded on the lower inner side of the sealing sleeve (600), and when the sealing sleeve (600) covers the connecting device (5), the sealing ring (602) is clamped in the sealing groove (1000).

4. A sealing mechanism for a reduction gearbox connection location according to claim 3, characterised in that: A metal ring (1001) is embedded and mounted on the surface of the front ring frame (100) below the sealing groove (1000), a soft magnetic strip (603) is embedded in the lower portion of the sealing sleeve (600), and when the sealing sleeve (600) covers the connecting device (5), the soft magnetic strip (603) is attracted and connected to the metal ring (1001).

5. A sealing mechanism for a reduction gearbox connection location according to claim 3, characterized in that: The cross section of the sealing ring (602) is a semicircular structure.

6. A sealing mechanism for a reduction gearbox connection location according to claim 2, characterized in that: Ears (604) are arranged 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 ears (604).

7. A sealing mechanism for a reduction gearbox connection location according to claim 6, characterised in that: A plurality of ears (604) are arranged, and the plurality of ears (604) are arranged in a ring array.

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