Motor connected to self-locking shaft end

The shaft end connection mechanism with electromagnetic self-locking design solves the problem of loose connection between the motor and the load equipment shaft, achieving stable connection and efficient operation.

CN224289499UActive Publication Date: 2026-05-26ZHEJIANG JIAXUE WEITE MOTOR GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG JIAXUE WEITE MOTOR GRP CO LTD
Filing Date
2025-05-23
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Loose or improperly installed shaft connections between the motor and the load equipment can cause vibrations and loosening during operation, affecting equipment stability.

Method used

The shaft end connection mechanism, which adopts an electromagnetic self-locking design, achieves self-locking through the mutual attraction between electromagnets and magnets, ensuring a stable connection between the motor output shaft and the load equipment input shaft.

Benefits of technology

It effectively prevents the shaft connection between the motor and the load equipment from loosening and falling off, ensuring stable operation of the equipment and improving transmission efficiency and system accuracy.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224289499U_ABST
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Abstract

This utility model relates to the field of motor technology, specifically to a self-locking shaft-end connected motor, including a motor body, a motor output shaft, a load device input shaft, and a shaft-end self-locking connection mechanism. The motor output shaft is movably mounted on the end face of the motor body near the load device. The motor output shaft and the load device input shaft are fixedly connected by the shaft-end self-locking connection mechanism. The shaft-end self-locking connection mechanism is composed of a self-locking connection core assembly and an electromagnetic energizing assembly. The self-locking connection core assembly includes a motor output shaft fixed end and a load device input shaft fixed end, which are respectively fixedly connected to the motor output shaft and the load device input shaft. An electromagnet connection core and a magnet connection core are respectively fixedly mounted on the sides of the motor output shaft fixed end and the load device input shaft fixed end near each other. Through the design of the shaft-end self-locking connection mechanism, the motor output shaft and the load device input shaft can be self-locked by electromagnetic force, which can ensure a stable connection with the load device and prevent detachment.
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Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a self-locking shaft end connected motor. Background Technology

[0002] Direct drive motors connect directly to the load by eliminating traditional transmission devices such as reduction gears, belts, or chains, thereby reducing energy losses during transmission and improving efficiency. Furthermore, direct drive reduces mechanical errors, improving system accuracy and stability.

[0003] However, certain defects and shortcomings exist in actual operation and need to be addressed. The specific defects and shortcomings are as follows: loose or improper installation of the connection between the shafts of the motor and the load equipment can cause the motor to vibrate during operation, which in turn can lead to loosening and detachment of the connection. This makes it impossible to ensure a stable and reliable connection with the load equipment, directly affecting the stable operation of the equipment. Therefore, it is necessary to design a self-locking shaft end connection motor to solve the problems mentioned in the background technology. Utility Model Content

[0004] The purpose of this invention is to provide a self-locking shaft-end connected motor, which adopts an electromagnetic self-locking design to ensure a stable connection with the load equipment and prevent detachment, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The self-locking shaft end connection motor includes a motor body, a motor output shaft, a load device input shaft, and a shaft end self-locking connection mechanism. The motor output shaft is movably mounted on one end face of the motor body near the load device. The motor output shaft and the load device input shaft are fixedly connected by the shaft end self-locking connection mechanism. The shaft end self-locking connection mechanism is composed of a self-locking connection core assembly and an electromagnetic energizing assembly. The self-locking connection core assembly includes a motor output shaft fixed end and a load device input shaft fixed end, which are respectively fixedly connected to the motor output shaft and the load device input shaft. An electromagnet connection core and a magnet connection core are respectively fixedly mounted on the sides of the motor output shaft fixed end and the load device input shaft fixed end near each other. The electromagnetic energizing assembly includes an outer sheath sleeve fitted on the outer surface of the self-locking connection core assembly. An energized slip ring is fixedly mounted inside the outer sheath sleeve near the outer surface of the electromagnet connection core. An electrical terminal is fixedly mounted on the outer surface of the outer sheath sleeve near the energized slip ring.

[0007] As a preferred embodiment of this utility model, the electromagnet connecting core is composed of several groups of electromagnetic fan-shaped components arranged in a ring, and a first groove is provided between any two groups of the several groups of electromagnetic fan-shaped components arranged in a ring. The magnet connecting core is composed of several groups of magnet fan-shaped components arranged in a ring, and a second groove is provided between any two groups of the several groups of magnet fan-shaped components arranged in a ring.

[0008] As a preferred embodiment of this utility model, the plurality of electromagnetic fan-shaped components arranged in a ring and the plurality of magnetic fan-shaped components arranged in a ring are staggered, and the electromagnetic fan-shaped components and the magnetic fan-shaped components correspond to the second slot and the first slot, respectively.

[0009] As a preferred embodiment of this utility model, the fixed shaft grooves adapted to the motor output shaft and the load device input shaft are respectively provided at the center of the end face away from each other. Insulating pads are fixedly installed at the ends of the motor output shaft and the load device input shaft that are close to each other.

[0010] As a preferred embodiment of this utility model, an insulating layer is fixedly installed around the inner wall of the outer sleeve, and mounting rings are fitted on both sides of the outer surface of the outer sleeve near the power terminal. The mounting rings and the equipment platform are fixedly installed by a base. Dustproof end caps are fixedly installed at both ends of the outer sleeve, and the dustproof end caps at both ends of the outer sleeve are respectively provided with rotating shaft holes adapted to the motor output shaft and the load equipment input shaft.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, the design of the shaft end self-locking connection mechanism utilizes electromagnetic self-locking between the motor output shaft and the load equipment input shaft. This effectively avoids the problem of motor vibration during operation caused by loose connections or improper installation between the shafts of the motor and the load equipment, which could lead to loosening and detachment of the connection. This ensures a stable connection with the load equipment, prevents detachment, and facilitates stable operation of the equipment, effectively solving the problems mentioned in the background art. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0014] Figure 2 A three-dimensional structural diagram of the shaft end self-locking connection mechanism in this utility model;

[0015] Figure 3 This is a three-dimensional magnified structural diagram of the self-locking connecting core assembly in this utility model.

[0016] Figure 4 This is a three-dimensional magnified structural diagram of the electromagnetic energizing component in this utility model.

[0017] In the diagram: 1. Motor body; 2. Motor output shaft; 3. Load device input shaft; 4. Shaft end self-locking connection mechanism; 41. Self-locking connection core assembly; 411. Fixed end of motor output shaft; 412. Fixed end of load device input shaft; 413. Electromagnet connection core; 4131. Electromagnetic sector assembly; 4132. First slot; 414. Magnet connection core; 4141. Magnet sector assembly; 4142. Second slot; 415. Fixed shaft slot; 416. Insulating pad; 42. Electromagnetic energizing assembly; 421. Outer sleeve; 4211. Insulating layer; 4212. Mounting ring frame; 4213. Fixed base; 4214. Dustproof end cover; 422. Energized slip ring; 423. Power connection terminal. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Example:

[0020] This utility model embodiment provides a self-locking shaft end connected motor. The self-locking shaft end connected motor adopts an electromagnetic self-locking design to ensure a stable connection with the load equipment and prevent detachment, thereby solving the problems mentioned in the background art.

[0021] Please see Figures 1-4 This utility model provides a technical solution:

[0022] The self-locking shaft end connection motor includes a motor body 1, a motor output shaft 2, a load device input shaft 3, and a shaft end self-locking connection mechanism 4. The motor output shaft 2 is movably installed on one end face of the motor body 1 near the load device. The motor output shaft 2 and the load device input shaft 3 are fixedly connected by the shaft end self-locking connection mechanism 4. The design of the shaft end self-locking connection mechanism 4 can use electromagnetic self-locking to lock the motor output shaft 2 and the load device input shaft 3, effectively avoiding the problem of motor vibration during operation caused by loose connection or improper installation between the shafts of the motor and the load device, which could lead to loosening and detachment of the connection. This ensures a stable connection with the load device, prevents detachment, and facilitates the stable operation of the equipment.

[0023] The shaft end self-locking connection mechanism 4 is composed of a self-locking connection core assembly 41 and an electromagnetic energizing assembly 42. The self-locking connection core assembly 41 includes a motor output shaft fixed end 411 and a load device input shaft fixed end 412, which are respectively fixedly connected to the motor output shaft 2 and the load device input shaft 3. An electromagnet connection core 413 and a magnet connection core 414 are respectively fixedly installed on the side of the motor output shaft fixed end 411 and the load device input shaft fixed end 412 that are close to each other. The electromagnetic energizing assembly 42 includes an outer protective sleeve on the outer surface of the self-locking connection core assembly 41. The sleeve 421 has an energized slip ring 422 fixedly installed inside the sleeve 421 near the outer surface of the electromagnet connecting core 413. The outer surface of the sleeve 421 is also fixedly installed near the energized slip ring 422. An external power supply is connected to the external power supply through the power supply terminal 423. The energized slip ring 422 conducts electricity to the electromagnet connecting core 413. At this time, the electromagnet connecting core 413 is energized and generates a magnetic field. Under the action of strong magnetic force, it is tightly attracted to the magnet connecting core 414, thereby achieving self-locking. After the power is cut off, the magnetic field disappears, and the self-locking is unlocked.

[0024] Furthermore, in this embodiment, please refer to Figure 3 The electromagnet connecting core 413 is composed of several groups of circularly distributed electromagnetic sector components 4131, with a first groove 4132 provided between any two groups of these components. The magnet connecting core 414 is composed of several groups of circularly distributed magnetic sector components 4141, with a second groove 4142 provided between any two groups of these components. The several groups of circularly distributed electromagnetic sector components 4131 and the several groups of circularly distributed magnetic sector components 4141 form a... The components are staggered, with the electromagnetic sector component 4131 and the magnetic sector component 4141 corresponding to the second slot 4142 and the first slot 4132, respectively. The electromagnetic sector component 4131, the first slot 4132, the magnetic sector component 4141, and the second slot 4142 can effectively prevent misalignment and slippage, ensure transmission efficiency, and make the connection more stable and reliable. On the other hand, they can ensure that the axis of the motor output shaft 2 and the axis of the load equipment input shaft 3 are aligned, thereby ensuring that the equipment operates more efficiently, reducing energy waste, and improving the overall system production efficiency.

[0025] Furthermore, in this embodiment, please refer to Figure 3Fixed shaft grooves 415, which are adapted to the motor output shaft 2 and the load device input shaft 3, are respectively provided at the center of the end face away from each other of the motor output shaft 411 and the load device input shaft 412. Insulating pads 416 are fixedly installed at the ends of the motor output shaft 411 and the load device input shaft 412 closest to each other. The design of the fixed shaft grooves 415 can ensure the accuracy of assembly and avoid misalignment, which would affect the operation of the overall equipment. At the same time, the design of the insulating pads 416 can effectively prevent electric conduction during electromagnetic self-locking, thus increasing the safety factor.

[0026] Furthermore, in this embodiment, please refer to Figure 4 An insulating layer 4211 is fixedly installed around the inner wall of the outer sleeve 421. An installation ring frame 4212 is fitted on both sides of the outer surface of the outer sleeve 421 near the power terminal 423. The installation ring frame 4212 and the equipment platform are fixedly installed by a base 4213. Dustproof end caps 4214 are fixedly installed at both ends of the outer sleeve 421. The dustproof end caps 4214 at both ends of the outer sleeve 421 are respectively provided with rotating shaft holes adapted to the motor output shaft 2 and the load equipment input shaft 3. The design of the insulating layer 4211 can further prevent conductivity and enhance the safety factor. At the same time, the design of the dustproof end caps 4214 can make the outer sleeve 421 dustproof, avoiding dust from affecting the operation of the self-locking connection core assembly 41.

[0027] It should be noted that the principle of electromagnets is existing technology, and will not be elaborated on here.

[0028] In this embodiment, the specific implementation scenario is as follows: First, a fixed power supply is connected externally through the power terminal 423. The electromagnet connecting core 413 is made conductive by the energized slip ring 422. At this time, the electromagnet connecting core 413 is energized and generates a magnetic field. Under the action of strong magnetic force, it is tightly attracted to the magnet connecting core 414, thereby achieving self-locking. At this time, the motor body 1 starts, and the motor output shaft 2 starts to rotate. Through the self-locking connecting core assembly 41, the load equipment input shaft 3 is driven to rotate, thereby making the load equipment start to run. Moreover, through the design of the shaft end self-locking connection mechanism 4, the motor output shaft 2 and the load equipment input shaft 3 can be self-locked by electromagnetic force, which can ensure a stable connection with the load equipment, prevent detachment, and facilitate the stable operation of the equipment.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-locking shaft-end connected motor, comprising a motor body (1), a motor output shaft (2), a load device input shaft (3), and a shaft-end self-locking connection mechanism (4), characterized in that: The motor body (1) has a motor output shaft (2) movably mounted on one end face near the load device. The motor output shaft (2) and the load device input shaft (3) are fixedly connected by a shaft end self-locking connection mechanism (4). The shaft end self-locking connection mechanism (4) is composed of a self-locking connection core assembly (41) and an electromagnetic energizing assembly (42). The self-locking connection core assembly (41) includes a motor output shaft fixed end (411) and a load device input shaft fixed end (412) that are fixedly connected to the motor output shaft (2) and the load device input shaft (3) respectively. An electromagnet connecting core (413) and a magnet connecting core (414) are respectively fixedly installed on one side of the fixed end (411) and the fixed end (412) of the load device input shaft. The electromagnetic energizing assembly (42) includes an outer sleeve (421) sleeved on the outer surface of the self-locking connecting core assembly (41). An energized slip ring (422) is fixedly installed inside the outer sleeve (421) near the outer surface of the electromagnet connecting core (413). An energized terminal (423) is fixedly installed on the outer surface of the outer sleeve (421) near the energized slip ring (422).

2. The self-locking shaft end connected motor according to claim 1, characterized in that: The electromagnet connecting core (413) is composed of several groups of electromagnetic sector components (4131) arranged in a ring. A first slot (4132) is provided between any two groups of the several groups of electromagnetic sector components (4131) arranged in a ring. The magnet connecting core (414) is composed of several groups of magnet sector components (4141) arranged in a ring. A second slot (4142) is provided between any two groups of the several groups of magnet sector components (4141) arranged in a ring.

3. The self-locking shaft end connected motor according to claim 2, characterized in that: The electromagnetic sector components (4131) arranged in a ring and the magnetic sector components (4141) arranged in a ring are staggered, and the electromagnetic sector components (4131) and the magnetic sector components (4141) correspond to the second slot (4142) and the first slot (4132) respectively.

4. The self-locking shaft end connected motor according to claim 1, characterized in that: The fixed shaft end (411) of the motor output shaft and the fixed shaft end (412) of the load device are respectively provided with fixed shaft grooves (415) that are adapted to the motor output shaft (2) and the load device input shaft (3) at the center of the end face away from each other. The fixed shaft end (411) of the motor output shaft and the fixed shaft end (412) of the load device are respectively fixedly installed with insulating pads (416) at the end close to each other.

5. The self-locking shaft end connected motor according to claim 1, characterized in that: An insulating layer (4211) is fixedly installed around the inner wall of the outer sleeve (421). An installation ring frame (4212) is fitted on both sides of the outer surface of the outer sleeve (421) near the power terminal (423). The installation ring frame (4212) and the equipment platform are fixedly installed by a fixed base (4213). Dustproof end caps (4214) are fixedly installed at both ends of the outer sleeve (421). The dustproof end caps (4214) located at both ends of the outer sleeve (421) are respectively provided with rotating shaft holes that are adapted to the motor output shaft (2) and the load equipment input shaft (3).