Coupling capable of achieving waterproof rotary motion at preset standing position

Abstract

The utility model discloses a coupler with a vertical stop preset position capable of waterproof rotary motion, which relates to the technical field of couplings and comprises a connecting cover, a coupler body is fixedly mounted at the lower end of the connecting cover, a dustproof component is arranged on the outer side of the coupler body, and the coupler body comprises a shell. A stator is fixedly installed on the inner wall of the shell, a rotor is arranged in the shell, and a first assembly hole is formed in the upper end of the rotor in a penetrating mode. According to the utility model, through the arrangement of the stator and the rotor, the coupler can be driven to rotate synchronously in the rotation process of the motor, and the coupler can be stopped quickly when the motor stops running, so that the accuracy and the universality of the motor are improved; and through the arrangement of the dustproof cover and the dustproof frame, the coupler body and the dustproof assembly can be conveniently installed, meanwhile, external dust can be prevented from falling into the coupler body, and the service life of the coupler body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of couplings, in particular to a coupling with a predetermined stop position capable of waterproof rotational motion. Background Art

[0002] With the development of science and technology, the structure of traditional servo motor reducers is far from meeting the high-precision requirements of industry. Its limitations lie in the backlash and vibration of the reducer, as well as the performance of the servo motor itself. Sometimes, in order to protect the motor, a coupling is installed at the output end of the motor. The coupling is a device that connects two shafts or shafts and rotating parts, and rotates together during the transmission of motion and power. After the motor stops working, the output end will still drive the coupling to rotate for a period of time.

[0003] For example, Chinese patent CN206290595U discloses a "high elastic coupling", which includes a connecting sleeve, an outer gear plate, an inner gear plate and a connecting plate which are sequentially arranged from the axis to the outside; the inner gear plate and the connecting plate are connected by a buffer device; the buffer device includes a tooth plate and a shock-absorbing block, the tooth plate includes a first tooth plate and a second tooth plate, and in the circumferential direction, the first tooth plate and the second tooth plate are alternately arranged, and a shock-absorbing block is arranged between the first tooth plate and the second tooth plate.

[0004] However, in the prior art, couplings are mostly mechanical structures. After the motor stops running, the output end of the motor will still move for a period of time due to inertia, making it impossible to use the coupling to stop the motor accurately. Therefore, the applicability is low and it is impossible to drive more precise mechanical movements. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the couplings existing in the prior art are mostly mechanical structures, and after the motor stops running, the output end of the motor will still move for a period of time under the action of inertia, making it impossible to use the coupling to stop the motor accurately. Therefore, the applicability is low and it is impossible to drive more precise mechanical movements. A coupling with a predetermined stop position that can prevent water-proof rotational movement is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a coupling with a predetermined stop position and waterproof rotation movement, comprising a connecting cover, a coupling body is fixedly installed on the lower end of the connecting cover, a dustproof component is arranged on the outer side of the coupling body, the coupling body comprises an outer shell, a stator is fixedly installed on the inner wall of the outer shell, a rotor is arranged inside the outer shell, and an assembly hole is opened through the upper end of the rotor.

[0007] Preferably, the dustproof assembly comprises a dustproof cover, and a dustproof frame is fixedly mounted on the outer side of the dustproof cover.

[0008] Preferably, a fixing block is fixedly connected to the outer side of the shell, and a plurality of mounting holes are formed through the upper end of the fixing block.

[0009] Preferably, a bearing 1 is fixedly installed inside the dustproof frame, and a rotating block is rotatably connected inside the bearing 1.

[0010] Preferably, the upper end of the rotating block is fixed to the lower end of the rotor, and a second assembly hole is formed through the upper end of the rotating block.

[0011] Preferably, a second bearing is fixedly installed inside the dust cover, and the inside of the second bearing is rotatably connected to the outside of the rotating block.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, the stator and the rotor are arranged so that the coupling can be driven to rotate synchronously during the rotation of the motor, and the coupling can stop quickly when the motor stops running, thereby improving the accuracy and versatility of the motor.

[0014] 2. In the present invention, the provision of the dust cover and the dust frame makes it easy to install the coupling body and the dustproof assembly, while preventing external dust from falling into the interior of the coupling body, thereby increasing the service life of the coupling body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides a three-dimensional structural schematic diagram of a coupling with a predetermined stop position capable of waterproof rotational movement;

[0016] Figure 2 The utility model provides a three-dimensional structural schematic diagram of a coupling with a predetermined stop position capable of waterproof rotational movement;

[0017] Figure 3 The utility model provides a three-dimensional structural schematic diagram of a coupling with a predetermined stop position and waterproof rotational movement.

[0018] Legend: 1. Connecting cover; 2. Coupling body; 201. Housing; 202. Fixing block; 203. Mounting hole; 204. Stator; 205. Rotor; 206. Assembly hole one; 3. Dustproof component; 301. Dustproof cover; 302. Dustproof frame; 303. Bearing one; 304. Rotating block; 305. Assembly hole two; 306. Bearing two. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0021] Embodiment 1

[0022] like Figure 1-3 As shown, the utility model provides a coupling with a predetermined stop position and waterproof rotational motion, comprising a connecting cover 1, a coupling body 2 is fixedly mounted on the lower end of the connecting cover 1, a dustproof component 3 is arranged on the outer side of the coupling body 2, the coupling body 2 comprises an outer shell 201, a stator 204 is fixedly mounted on the inner wall of the outer shell 201, a rotor 205 is arranged inside the outer shell 201, an assembly hole 206 is penetrated through the upper end of the rotor 205, a fixing block 202 is fixedly connected to the outer side of the outer shell 201, and a plurality of mounting holes 203 are penetrated through the upper end of the fixing block 202.

[0023] The specific configuration and function of this embodiment are described in detail below. The coupling is installed on the motor, and then the output end and the input end of the stator 204 inside the coupling body 2 are respectively connected to the two poles of the power supply. The power supply can be the AC power supply on the motor, and the rotor 205 has symmetrical magnetism on the outside. When current passes through the stator 204, the magnetism changes. The magnetism of the stator 204 and the rotor 205 is that like poles repel each other and opposite poles attract each other, so that the stator 204 drives the rotor 205 to rotate, and the stator 204 changes polarity under the control of the power supply of the motor, so that the rotor 205 rotates forward, reverses or stops together with the output end of the motor, and changes the rotation speed of the rotor 205 according to the speed of changing polarity, and stops the polarity change to stop the rotor 205, thereby improving the accuracy of the rotor 205 and the rotating block 304, and can quickly stop the rotor 205, thereby improving the versatility of the motor.

[0024] Embodiment 2

[0025] like Figure 2 and Figure 3As shown, the dustproof component 3 includes a dustproof cover 301, a dustproof frame 302 is fixedly installed on the outer side of the dustproof cover 301, a bearing 303 is fixedly installed inside the dustproof frame 302, a rotating block 304 is rotatably connected inside the bearing 303, the upper end of the rotating block 304 is fixed to the lower end of the rotor 205, an assembly hole 305 is penetrated through the upper end of the rotating block 304, a bearing 306 is fixedly installed inside the dustproof cover 301, and the inside of the bearing 306 is rotatably connected to the outer side of the rotating block 304.

[0026] The effect achieved by the entire embodiment is that the provision of the dust cover 301 and the dust frame 302 makes it convenient to install the coupling body 2 and the dustproof assembly 3 while preventing external dust from falling into the interior of the coupling body 2, thereby increasing the service life of the coupling body 2.

[0027] The use method and working principle of this device are as follows: the coupling is installed on the motor, and then the output end and input end of the stator 204 inside the coupling body 2 are respectively connected to the two poles of the power supply, which can be the AC power supply on the motor, and the rotor 205 has symmetrical magnetism on the outside. When the stator 204 has current passing through it, the magnetism changes. The magnetism of the stator 204 and the rotor 205 is that the same pole repels each other and the opposite poles attract each other, so that the stator 204 drives the rotor 205 to rotate, and the stator 204 is controlled by the power supply of the motor to change its polarity, so that the rotor 205 rotates with the current. The output end of the machine rotates forward, reverse or stops together, and changes the rotation speed of the rotor 205 according to the speed of changing the polarity, and stops the polarity change to stop the rotor 205, thereby improving the accuracy of the rotor 205 and the rotating block 304, and can quickly stop the rotor 205, thereby improving the versatility of the motor. The dust cover 301 and the dust frame 302 are arranged to facilitate the installation of the coupling body 2 and the dustproof component 3, while preventing external dust from falling into the interior of the coupling body 2, thereby improving the service life of the coupling body 2.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A coupling having a predetermined stop position and waterproof rotational motion, comprising a connection cover (1), characterized in that: A coupling body (2) is fixedly mounted on the lower end of the connection cover (1), a dustproof component (3) is arranged on the outer side of the coupling body (2), the coupling body (2) comprises a housing (201), a stator (204) is fixedly mounted on the inner wall of the housing (201), a rotor (205) is arranged inside the housing (201), and an assembly hole (206) is provided through the upper end of the rotor (205).

2. A coupling with a predetermined stop position and waterproof rotation according to claim 1, characterized in that: The dustproof component (3) comprises a dustproof cover (301), and a dustproof frame (302) is fixedly mounted on the outer side of the dustproof cover (301).

3. A coupling with a predetermined stop position and waterproof rotational motion according to claim 1, characterized in that: A fixing block (202) is fixedly connected to the outer side of the housing (201), and a plurality of mounting holes (203) are formed through the upper end of the fixing block (202).

4. A coupling with a predetermined stop position and waterproof rotational motion according to claim 2, characterized in that: A bearing 1 (303) is fixedly installed inside the dustproof frame (302), and a rotating block (304) is rotatably connected inside the bearing 1 (303).

5. A coupling with a predetermined stop position and waterproof rotation according to claim 4, characterized in that: The upper end of the rotating block (304) is fixed to the lower end of the rotor (205), and a second assembly hole (305) is formed through the upper end of the rotating block (304).

6. A coupling with a predetermined stop position and waterproof rotational motion according to claim 4, characterized in that: A second bearing (306) is fixedly mounted inside the dust cover (301), and the inside of the second bearing (306) is rotatably connected to the outside of the rotating block (304).

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