Carbon fiber winding motor rotor

Abstract

The utility model relates to the technical field of motor rotors, in particular to a carbon fiber winding motor rotor which comprises a shaft sleeve, a support used for supporting is assembled on the periphery of the shaft sleeve through bolts, and internal threads used for connection are arranged on the inner side surface of the top end of the support and the inner side surface of the bottom end of the support. An external thread ring used for connection is installed on the internal thread in a screwed mode, a ring cover connected with the support in a matched mode is integrally constructed at the end, away from the support, of the external thread ring, and a carbon fiber layer used for improving strength is wound around the peripheral surface of the support. After the periphery of the motor rotor is wound with a carbon fiber layer, the external thread ring on one side of the ring cover can be conveniently screwed with the internal thread on the inner side of the bracket on the periphery of the shaft sleeve, so that the two groups of ring covers can be respectively screwed on the upper side and the lower side of the bracket, and the carbon fiber layer wound on the periphery of the bracket is limited, so that the motor rotor can operate more stably; meanwhile, disassembly and assembly are easy, and maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of motor rotors, in particular to a carbon fiber wound motor rotor. Background Art

[0002] A motor is an electromagnetic device that realizes the conversion or transmission of electrical energy according to the law of electromagnetic induction, or converts one form of electrical energy into another form of electrical energy to generate driving torque. It is widely used in various industries as a power source for electrical appliances or various machines. With the development trend of precision, intelligence and personalization of downstream demand, the speed of 3-4000 rpm of ordinary AC motors can no longer meet daily needs. The high-speed DC motor in the prior art generally includes a stator pole, a rotor, i.e. an armature, a commutator, a brush, a casing, a bearing, etc. The stator pole is composed of an iron core and an excitation winding, and the rotor is the rotating body in the motor. The magnetic field is established in the air gap of the motor through the action of permanent magnets outside the iron core in the rotor; Patent No. CN202120768940.0 discloses a high-speed motor rotor reinforced with carbon fiber winding, which is connected to the rotating shaft of a rotating drive mechanism through a shaft sleeve. During the process, the resin-impregnated carbon fiber is wrapped around the outside of several magnetic steel sheets between the first anti-loosening gasket and the second anti-loosening gasket. The bonding between the carbon fiber and the surface of the magnetic steel sheet is ensured by impregnation, winding and resin curing. The carbon fiber reinforcement layer thickness of T300, T700 or above carbon fiber is 0.2-2mm, and with high winding tension, it is seamlessly wound onto the outer ring of the permanent magnet of the rotor magnetic steel sheet to firmly clamp the magnetic steel sheet on the rotor to avoid the risk of high-speed throwing out of the magnetic steel sheet under the action of centrifugal force when the rotor is used in a high-speed motor at a speed of 20,000-60,000 revolutions per minute. However, since the anti-loosening gaskets on the outer periphery of the motor rotor are fastened with multiple sets of screws, multiple fastening screws need to be disassembled and assembled during installation or subsequent maintenance in order to remove the anti-loosening gasket and maintain the internal structure of the motor rotor, which is not convenient enough to operate. To this end, we propose a carbon fiber-wrapped motor rotor. Utility Model Content

[0003] In view of the problems in the prior art, the utility model provides a carbon fiber wound motor rotor.

[0004] The technical solution adopted by the utility model to solve the technical problem is a carbon fiber wound motor rotor, comprising a shaft sleeve, the outer circumference of which is equipped with a bracket for support through bolts, and the inner surface of the top end and the inner surface of the bottom end of the bracket are both provided with internal threads for connection, the internal threads are screwed with an external thread ring for connection, the end of the external thread ring away from the bracket is integrally constructed with a ring cover that fits and connects with the bracket, and the outer circumferential surface of the bracket is wound with a carbon fiber layer for improving strength;

[0005] The inner circumference of the external thread ring and the surface of the internal thread are both provided with corresponding screw holes, and screws for tightening are threadedly installed inside the screw holes.

[0006] By adopting the above technical solution, after the carbon fiber layer is wound around the outer periphery of the motor rotor, the external thread ring on one side of the ring cover and the internal thread on the inner side of the outer periphery bracket of the shaft sleeve can be conveniently screwed together, so that the two sets of ring covers can be screwed and installed on the upper and lower sides of the bracket respectively, and the carbon fiber layer wound around the outer periphery of the bracket is limited, so that it can operate more stably, and at the same time, it is simple to disassemble and assemble, and convenient for maintenance;

[0007] When the external thread ring drives the ring cover and the internal thread on the surface of the bracket to be screwed together, the number of screwing rotations between the two is fixed, and the screw holes on the surface of the external thread ring and the screw holes on the surface of the internal thread will correspond to each other after tightening. Then the screws can be screwed into the screw holes to assist in fixing the position of the external thread ring, so that the external thread ring and the ring cover can be more firmly installed on the periphery of the bracket and operate stably.

[0008] Specifically, a gasket for protection is installed on the outer periphery of the screw.

[0009] By adopting the above technical solution, the gasket can improve the stability of the connection between the screw and the screw hole, and reduce the situation where the friction between the screw and the external thread ring after tightening causes abrasion.

[0010] Specifically, the inner circumferential surface of the external threaded ring is integrally constructed with a concave seat for rotation, and there are multiple groups of concave seats.

[0011] By adopting the above technical solution, the concave seats are evenly distributed on the inner circumference of the external thread ring, making it easier to disassemble and assemble the ring cover and the external thread ring.

[0012] Specifically, an arc-shaped hole that fits and connects with the bracket is opened on one side of the shaft sleeve opposite to the bracket, and there are multiple groups of arc-shaped holes.

[0013] By adopting the above technical solution, the arc-shaped hole on the outer peripheral surface of the sleeve is convenient for fitting and connecting with the bracket, which is convenient for improving the stability of the bracket when it is installed on the outer periphery of the sleeve, so that the rotor bracket in the electronic rotor can operate more stably.

[0014] Specifically, the outer peripheral surface of the carbon fiber layer is coated with a ceramic wear-resistant layer located between the two groups of ring covers.

[0015] By adopting the above technical solution, the ceramic wear-resistant layer can improve the wear resistance of the carbon fiber layer, enabling it to operate more stably.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The technical solution of the present application, through the design of the bracket, internal thread, external thread ring, ring cover and carbon fiber layer, can conveniently use the external thread ring on one side of the ring cover and the internal thread on the inner side of the bracket on the outer periphery of the sleeve to screw together after the carbon fiber layer is wound around the outer periphery of the motor rotor, so that the two sets of ring covers can be screwed and installed on the upper and lower sides of the bracket respectively, and the carbon fiber layer wound around the outer periphery of the bracket can be limited, so that it can operate more stably, and at the same time, it is simple to disassemble and assemble, and convenient for maintenance.

[0018] 2. The technical solution of the present application is designed with screw holes and screws. When the external threaded ring drives the ring cover and the internal thread on the surface of the bracket to be screwed together, the number of screwed rotations between the two is fixed, and the screw holes on the surface of the external threaded ring and the screw holes on the surface of the internal threaded ring after tightening will correspond to each other. Then the screws can be screwed into the screw holes, which is convenient for auxiliary fixation of the position of the external threaded ring, so that the external threaded ring and the ring cover can be more firmly installed on the periphery of the bracket and operate stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is an axonometric drawing of the utility model;

[0021] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model;

[0022] Figure 3 It is an exploded view of the connection structure between the shaft sleeve and the ring cover of the utility model;

[0023] In the figure: 1. sleeve; 2. bracket; 3. internal thread; 4. external thread ring; 5. ring cover; 6. carbon fiber layer; 7. screw hole; 8. screw; 9. ceramic wear-resistant layer; 10. gasket; 11. concave seat; 12. arc hole. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] See also Figure 1-3The embodiment of the utility model provides a technical solution: a carbon fiber wound motor rotor, comprising a sleeve 1, a bracket 2 for support is assembled on the outer circumference of the sleeve 1 by bolts, and the inner surface of the top end and the inner surface of the bottom end of the bracket 2 are both provided with internal threads 3 for connection, the internal threads 3 are screwed with an external thread ring 4 for connection, and the end of the external thread ring 4 away from the bracket 2 is integrally constructed with a ring cover 5 that is matched and connected with the bracket 2, and a carbon fiber layer 6 for improving strength is wound on the outer circumference of the bracket 2; corresponding screw holes 7 are provided on the inner circumference of the external thread ring 4 and the surface of the internal thread 3, and screws 8 for tightening are screwed on the inner side of the screw holes 7.

[0026] When in use, after the carbon fiber layer 6 is wound around the outer periphery of the motor rotor, the external thread ring 4 on one side of the ring cover 5 can be conveniently screwed with the internal thread 3 on the inner side of the bracket 2 on the outer periphery of the sleeve 1, so that the two sets of ring covers 5 can be screwed and installed on the upper and lower sides of the bracket 2 respectively, and the carbon fiber layer 6 wound around the outer periphery of the bracket 2 is limited, so that it can operate more stably, and the disassembly and assembly are simple, and maintenance is convenient;

[0027] When the external thread ring 4 drives the ring cover 5 and the internal thread 3 on the surface of the bracket 2 to be screwed together, the number of screwed rotations between the two is fixed, and the screw holes 7 on the surface of the external thread ring 4 and the screw holes 7 on the surface of the internal thread 3 after tightening will correspond to each other, and then the screws 8 can be screwed into the screw holes 7, which is convenient for auxiliary fixation of the position of the external thread ring 4, so that the external thread ring 4 and the ring cover 5 can be more firmly installed on the periphery of the bracket 2 and operate stably.

[0028] like Figure 1 As shown, a gasket 10 for protection is sleeved and installed on the outer periphery of the screw 8.

[0029] When in use, the gasket 10 is convenient for improving the stability of the connection between the screw 8 and the screw hole 7 and reducing the friction between the screw 8 and the external threaded ring 4 after tightening to cause scratches.

[0030] like Figure 2 As shown, the inner circumferential surface of the external threaded ring 4 is integrally constructed with concave seats 11 for rotation, and there are multiple groups of concave seats 11.

[0031] When in use, the concave seats 11 are evenly distributed on the inner circumference of the external thread ring 4 , making it easier to assemble and disassemble the ring cover 5 and the external thread ring 4 .

[0032] like Figure 2 and Figure 3 As shown, an arc-shaped hole 12 which is matched and connected with the bracket 2 is opened on one side of the sleeve 1 opposite to the bracket 2, and there are multiple groups of arc-shaped holes 12.

[0033] When in use, the arc-shaped hole 12 on the outer surface of the sleeve 1 is conveniently fitted and connected with the bracket 2, which is convenient for improving the stability of the bracket 2 when installed on the outer periphery of the sleeve 1, so that the rotor bracket 2 in the electronic rotor can operate more stably.

[0034] like Figure 1 and Figure 2 As shown, the outer peripheral surface of the carbon fiber layer 6 is coated with a ceramic wear-resistant layer 9 located between the two groups of ring covers 5.

[0035] When in use, the ceramic wear-resistant layer 9 can improve the wear resistance of the carbon fiber layer 6, allowing it to operate more stably.

[0036] The working principle and use process of the utility model are as follows: when in use, first install the corresponding structural components in a suitable position. After the carbon fiber layer 6 is wound around the outer periphery of the motor rotor, the external thread ring 4 on one side of the ring cover 5 and the internal thread 3 on the inner side of the bracket 2 on the outer periphery of the sleeve 1 can be conveniently screwed together, so that the two sets of ring covers 5 can be screwed together and installed on the upper and lower sides of the bracket 2 respectively, and the carbon fiber layer 6 wound around the outer periphery of the bracket 2 is limited, so that it can operate more stably, and the disassembly and assembly are simple, and maintenance is convenient. When the external thread ring 4 drives the ring cover 5 and the internal thread 3 on the surface of the bracket 2 to be screwed together, the number of circles of screwing and rotation between the two is fixed, and the screw holes 7 on the surface of the external thread ring 4 after tightening correspond to the screw holes 7 on the surface of the internal thread 3, and then the screws 8 can be screwed together and installed in the screw holes 7, which is convenient for auxiliary fixing of the position of the external thread ring 4, so that the external thread ring 4 and the ring cover 5 can be more firmly installed on the outer periphery of the bracket 2 and operate stably, and the reverse operation is convenient for disassembly and assembly of the ring cover 5, which is convenient for maintenance of the motor rotor.

[0037] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A carbon fiber wound motor rotor, characterized in that: The invention comprises a shaft sleeve (1), the outer periphery of which is assembled with a support (2) by means of bolts, and the inner surface of the top end and the inner surface of the bottom end of the support (2) are both provided with internal threads (3) for connection, the internal threads (3) are screwed with an external thread ring (4) for connection, the end of the external thread ring (4) away from the support (2) is integrally constructed with a ring cover (5) which is matched and connected with the support (2), and the outer peripheral surface of the support (2) is wound with a carbon fiber layer (6) for improving strength; The inner circumference of the external thread ring (4) and the surface of the internal thread (3) are both provided with corresponding screw holes (7), and screws (8) for tightening are screwed and installed inside the screw holes (7).

2. The carbon fiber wound motor rotor according to claim 1, characterized in that: A gasket (10) for protection is sleeved and installed on the outer periphery of the screw (8).

3. The carbon fiber wound motor rotor according to claim 1, characterized in that: The inner circumferential surface of the external threaded ring (4) is integrally constructed with a concave seat (11) for rotation, and there are multiple groups of concave seats (11).

4. The carbon fiber wound motor rotor according to claim 1, characterized in that: An arc-shaped hole (12) which is fitted and connected to the bracket (2) is provided on one side of the shaft sleeve (1) opposite to the bracket (2), and there are multiple groups of arc-shaped holes (12).

5. The carbon fiber wound motor rotor according to claim 1, characterized in that: The outer peripheral surface of the carbon fiber layer (6) is coated with a ceramic wear-resistant layer (9) located between the two groups of ring covers (5).

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