Rotor tube with inward positioning structure

Abstract

The utility model relates to the technical field of motor rotor installation, and discloses a rotor tube with an inner positioning structure, which comprises a rotor tube shaft and a fixed sleeve, a connecting sleeve is arranged on the front side of the fixed sleeve, a bearing is arranged between the fixed sleeve and the connecting sleeve, the outer ring of the bearing is fixedly connected with a fixed outer disc, and the fixed outer disc is fixedly connected with a rotor shaft. A plurality of connecting columns are arranged on the front side of the fixed outer disc at equal intervals, a connecting outer disc is arranged on the rear side of the rotor tubular shaft, and a plurality of inserting holes are formed in the rear side of the connecting outer disc at equal intervals. According to the utility model, the fixed sleeve is fixed inside the motor housing, then the bearing sleeves the outer side of the front end of the fixed sleeve, the connecting sleeve is fixed at the front end of the fixed sleeve, then the insertion columns are inserted into the hollow grooves, and the insertion holes are connected with the corresponding insertion columns in a clamping manner, so that the rotation connection performance of the rotor tubular shaft in the rotation process is improved; and meanwhile, the rotor pipe shaft is positioned and mounted from the interior of the motor shell to the interior of the motor shell, so that the mounting convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor rotor installation, in particular to a rotor tube with an inner positioning structure. Background Art

[0002] The motor consists of two parts, the rotor and the stator. It is a device used to realize the conversion of electrical energy into mechanical energy and mechanical energy into electrical energy. The motor rotor is divided into two types: inner rotor rotation mode and outer rotor rotation mode. The inner rotor rotation mode is that the core in the middle of the motor is a rotating body, outputting torque (referring to the motor) or receiving energy (referring to the generator). The outer rotor rotation mode is that the outer body of the motor is a rotating body. Different methods facilitate the application in various occasions. Regardless of the rotation mode of the motor rotor, during the installation of the motor, the motor rotor needs to be provided with a rotor tube so that the motor rotor is sleeved on the outside of the rotor tube. The rotor tube installs the motor rotor inside the motor casing and supports and connects the rotation of the rotor.

[0003] The rotor tube of most existing motor rotors is provided with a circular rotation groove inside the motor housing, and the rear end of the rotor tube is directly inserted and sleeved inside the rotation groove for rotational connection. The rotational connection performance between the rear end of the rotor tube and the rotation groove is poor, resulting in increased rotational resistance. Secondly, the positioning performance during the installation of the rotor tube is poor, and the installation convenience is reduced. The rotor tube is easily caused to fall off during long-term operation, affecting the rotation performance of the rotor. It is necessary to design a rotor tube with an internal positioning structure to solve the above-mentioned problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a rotor tube with an inner positioning structure.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A rotor tube with an inner positioning structure, comprising a rotor tube shaft and a fixed sleeve, a connecting sleeve is arranged at the front side of the fixed sleeve, a bearing is arranged between the fixed sleeve and the connecting sleeve, a fixed outer disk is fixedly connected to the outer ring of the bearing, a plurality of connecting columns are equidistantly arranged at the front side of the fixed outer disk, a connecting outer disk is arranged at the rear side of the rotor tube shaft, a plurality of insertion holes are equidistantly arranged at the rear side of the connecting outer disk, and the insertion holes are respectively engaged and connected with the front ends of the corresponding connecting columns;

[0007] Through the above technical scheme, the fixed sleeve is first fixed inside the motor housing, and then the bearing sleeve is arranged on the outside of the front end of the fixed sleeve, and the connecting sleeve is fixed to the front end of the fixed sleeve to fix the bearing. Secondly, the insertion column arranged at the rear end of the rotor tube shaft is inserted into the hollow groove, and a plurality of insertion holes arranged on the rear side of the connecting outer disk are snap-connected with the corresponding insertion columns, thereby increasing the rotational connection performance of the rotor tube shaft with the motor housing during rotation, reducing the rotational resistance, and at the same time, the rotor tube shaft can be positioned and installed inside the motor housing to increase the convenience of installation, and the rotor tube shaft will not fall off after long-term operation.

[0008] Furthermore, a hollow groove is provided on the front side of the connecting sleeve, and an insertion column is provided on the middle part of the rear side of the connecting outer disk, and the insertion column is rotatably connected to the inner side of the hollow groove;

[0009] Through the above technical solution, the connection performance and rotation performance of the rear end of the rotor tube shaft at the front end of the connecting sleeve are increased.

[0010] Further, a connecting bolt is provided in the middle of the front side of the fixing sleeve, a threaded hole is provided in the middle of the rear side of the connecting sleeve, and the connecting bolt is threadedly connected to the inner side of the threaded hole;

[0011] The above technical solution facilitates the fixing of the fixed sleeve and the connecting sleeve, and the installation of the bearing therebetween.

[0012] Furthermore, a fixing disc is arranged at the rear side of the fixing sleeve, and a plurality of fixing bolts are arranged at equal intervals on the outer side of the fixing disc;

[0013] Through the above technical solution, it is convenient to fix the fixed sleeve to the inside of the motor housing through the fixed disc and the fixed bolts arranged on the rear side.

[0014] Furthermore, the inner ring of the bearing is snap-connected to the outer side of the front end of the fixed sleeve;

[0015] Through the above technical solution, the inner ring of the bearing is sleeved and clamped on the outer side of the front end of the fixed sleeve, so that the outer ring of the bearing is driven to rotate during the rotation of the rotor shaft.

[0016] Furthermore, the fixed sleeve, connecting sleeve, bearing, fixed outer disc and rotor shaft are all made of 45# steel;

[0017] Through the above technical solution, 45 steel material is a high-quality carbon structural steel with higher strength and deformation resistance. It is often used in the production of various rotating shafts to increase structural strength.

[0018] Furthermore, the rotor tube shaft and the connecting outer disk are integrally arranged, and the fixed outer disk and the plurality of connecting columns are integrally arranged;

[0019] The above technical solution can increase the stability of the connection, and the integrated arrangement facilitates overall manufacturing.

[0020] The utility model has the following beneficial effects:

[0021] In the utility model, the motor rotor is sleeved and fixed on the outer side of the rotor tube shaft, and then the whole formed by the motor rotor and the rotor tube shaft is installed inside the motor housing. First, the fixed sleeve is fixedly connected to the inside of the motor housing through the fixed disc and the fixing bolts arranged on the rear side, and then the whole formed by the bearing and the fixed outer disk is sleeved on the front outer side of the fixed sleeve, and is threadedly connected with the connecting bolt through the threaded hole arranged on the rear side of the connecting sleeve, so that the connecting sleeve and the fixed sleeve form a whole, and the bearing is fixed. Secondly, the insertion column arranged at the rear end of the rotor tube shaft is inserted into the hollow groove, and at the same time, a plurality of insertion holes arranged on the rear side of the connecting outer disk are engaged and connected with the corresponding insertion columns. When the motor rotor and the rotor tube shaft rotate, the insertion column arranged at the rear end of the rotor tube shaft rotates in the hollow groove, and the rotor tube shaft drives the outer ring of the bearing to rotate, thereby increasing the rotation connection performance of the rotor tube shaft with the motor housing during the rotation process, reducing the rotation resistance, and at the same time, the rotor tube shaft can be positioned and installed inside the motor housing to increase the convenience of installation, and the rotor tube shaft will not fall off after long-term operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a right-side three-dimensional structural schematic diagram of a rotor tube of an inner positioning structure proposed by the utility model;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the rotor tube axis rear side of a rotor tube with an inner positioning structure proposed by the utility model;

[0024] Figure 3 This is a schematic diagram of the front side three-dimensional structure of a fixed sleeve of a rotor tube of an inner positioning structure proposed by the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the bearing, the fixed outer disk and the connecting column of the rotor tube of the inner positioning structure proposed by the utility model;

[0026] Figure 5 A schematic diagram of the rear side three-dimensional structure of a connecting sleeve to a rotor tube of an inner positioning structure proposed by the utility model;

[0027] Figure 6 This is a schematic diagram of the front side three-dimensional structure of a connecting sleeve to a rotor tube of an inner positioning structure proposed by the utility model.

[0028] Legend:

[0029] 1. Rotor tube shaft; 2. Fixed sleeve; 3. Connecting sleeve; 4. Bearing; 5. Fixed outer disk; 6. Connecting column; 7. Connecting outer disk; 8. Insertion hole; 9. Hollow groove; 10. Insertion column; 11. Connecting bolt; 12. Threaded hole; 13. Fixed disc; 14. Fixing bolt. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1-6 The utility model provides an embodiment: a rotor tube with an inward positioning structure, comprising a rotor tube axis 1 and a fixed sleeve 2, a connecting sleeve 3 is arranged on the front side of the fixed sleeve 2, a bearing 4 is arranged between the fixed sleeve 2 and the connecting sleeve 3, the outer ring of the bearing 4 is fixedly connected with a fixed outer disk 5, a front side of the fixed outer disk 5 is equidistantly arranged with a plurality of connecting columns 6, a rear side of the rotor tube axis 1 is provided with a connecting outer disk 7, a rear side of the connecting outer disk 7 is equidistantly arranged with a plurality of insertion holes 8, the insertion holes 8 are respectively engaged and connected with the front ends of the corresponding connecting columns 6, and is suitable for a rotor tube with an inward positioning structure.

[0032] A hollow groove 9 is provided on the front side of the connecting sleeve 3, and an insert column 10 is provided on the middle part of the rear side of the connecting outer disk 7. The insert column 10 is rotatably connected to the inner side of the hollow groove 9, thereby increasing the connection performance and rotation performance of the rear end of the rotor tube shaft 1 at the front end of the connecting sleeve 3. A connecting bolt 11 is provided on the middle part of the front side of the fixed sleeve 2, and a threaded hole 12 is provided on the middle part of the rear side of the connecting sleeve 3. The connecting bolt 11 is threadedly connected to the inner side of the threaded hole 12, so as to facilitate the fixing between the fixed sleeve 2 and the connecting sleeve 3, and install the bearing 4 therebetween. A fixing disc 13 is provided on the rear side of the fixed sleeve 2, and a plurality of fixing bolts 14 are equidistantly provided on the outer side of the fixing disc 13, so as to facilitate the fixing of the fixed sleeve 2 through the fixing disc 13 and The fixing bolt 14 is fixedly connected to the inside of the motor housing, the inner ring of the bearing 4 is snap-connected to the outside of the front end of the fixed sleeve 2, and the inner ring of the bearing 4 is sleeved and snap-fitted on the outside of the front end of the fixed sleeve 2, so that the outer ring of the bearing 4 is driven to rotate during the rotation of the rotor tube shaft 1. The fixed sleeve 2, the connecting sleeve 3, the bearing 4, the fixed outer disk 5 and the rotor tube shaft 1 are all made of 45 steel. 45 steel is a high-quality carbon structural steel with higher strength and deformation resistance. It is commonly used in the production of various rotating shafts to increase structural strength. The rotor tube shaft 1 and the connecting outer disk 7 are integrated, and the fixed outer disk 5 and several connecting columns 6 are integrated to increase the stability of the connection. At the same time, the integrated arrangement facilitates overall manufacturing.

[0033] Working principle: The motor rotor is sleeved and fixed on the outside of the rotor tube axis 1, and then the whole formed by the motor rotor and the rotor tube axis 1 is installed inside the motor housing. First, the fixed sleeve 2 is fixedly connected to the inside of the motor housing through the fixed disc 13 and the fixing bolt 14 arranged on the rear side, and then the whole formed by the bearing 4 and the fixed outer disk 5 is sleeved on the outside of the front end of the fixed sleeve 2, and is threadedly connected with the connecting bolt 11 through the threaded hole 12 arranged on the rear side of the connecting sleeve 3, so that the connecting sleeve 3 and the fixed sleeve 2 form a whole, and the bearing 4 is fixed. Secondly, the insertion column 10 arranged at the rear end of the rotor tube axis 1 is inserted into the hollow groove 9, and at the same time, the several insertion holes 8 arranged on the rear side of the connecting outer disk 7 are snap-connected with the corresponding insertion columns 10. When the motor rotor and the rotor tube axis 1 rotate, the insertion column 10 arranged at the rear end of the rotor tube axis 1 rotates in the hollow groove 9, and the rotor tube axis 1 drives the outer ring of the bearing 4 to rotate.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotor tube with an internal positioning structure, comprising a rotor tube shaft (1) and a fixed sleeve (2), characterized in that: A connecting sleeve (3) is arranged on the front side of the fixed sleeve (2), a bearing (4) is arranged between the fixed sleeve (2) and the connecting sleeve (3), the outer ring of the bearing (4) is fixedly connected to a fixed outer disk (5), a plurality of connecting columns (6) are equidistantly arranged on the front side of the fixed outer disk (5), a connecting outer disk (7) is arranged on the rear side of the rotor tube shaft (1), a plurality of insertion holes (8) are equidistantly arranged on the rear side of the connecting outer disk (7), and the insertion holes (8) are respectively engaged and connected with the front ends of the corresponding connecting columns (6).

2. The rotor tube with an inner positioning structure according to claim 1, characterized in that: The front side of the connecting sleeve (3) is provided with a hollow groove (9), and the middle part of the rear side of the connecting outer disk (7) is provided with an insertion column (10), and the insertion column (10) is rotatably connected to the inner side of the hollow groove (9).

3. The rotor tube with an inner positioning structure according to claim 1, characterized in that: A connecting bolt (11) is provided in the middle of the front side of the fixing sleeve (2), a threaded hole (12) is provided in the middle of the rear side of the connecting sleeve (3), and the connecting bolt (11) is threadedly connected to the inner side of the threaded hole (12).

4. The rotor tube with an inner positioning structure according to claim 1, characterized in that: A fixing disc (13) is arranged at the rear side of the fixing sleeve (2), and a plurality of fixing bolts (14) are arranged at equal intervals on the outer side of the fixing disc (13).

5. The rotor tube with an inner positioning structure according to claim 1, characterized in that: The inner ring of the bearing (4) is snap-connected to the outer side of the front end of the fixed sleeve (2).

6. The rotor tube with an inner positioning structure according to claim 1, characterized in that: The fixed sleeve (2), the connecting sleeve (3), the bearing (4), the fixed outer disc (5) and the rotor tube shaft (1) are all made of No. 45 steel.

7. The rotor tube with an inner positioning structure according to claim 1, characterized in that: The rotor tube shaft (1) and the connecting outer disk (7) are integrally arranged, and the fixed outer disk (5) and the plurality of connecting columns (6) are integrally arranged.

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