Bearing assembly structure for rotor main shaft

Abstract

The utility model belongs to the technical field of motors, and particularly relates to a bearing assembly structure for a rotor main shaft, which comprises a pressure head, a bearing assembly and a bearing assembly, a space formed between the inner side of the annular bulge and the lower end surface of the pressure head is a placement position for accommodating the top of the rotor main shaft; a through hole is formed in the pressing head, and a rotor main shaft assembly arranged at the top of a rotor main shaft penetrates through the through hole. The output end of the driving mechanism is connected with the upper end face of the pressing head so as to drive the pressing head to move towards the top of the rotor spindle and further push the bearing to slide to be arranged on the outer wall of the rotor spindle in a sleeving mode. By arranging the pressure head and forming the through hole for accommodating the rotor main shaft assembly in the pressure head, when the pressure head is driven to push the cylinder body and the bearing to move towards the rotor main shaft and the bearing is connected with the rotor main shaft, the rotor main shaft assembly is inserted into the through hole, so that the connection of the rotor main shaft and the bearing is not influenced; and the rotor main shaft assembly is prevented from being easily touched and damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to a bearing assembly structure for a rotor main shaft. Background Art

[0002] In the traditional process of installing the stator into the cylinder, the rotor and the bearing need to be connected to the cylinder. In the prior art, the bearing is pressed onto the outer wall of the rotor main shaft, and the bearing needs to be placed in the bearing mounting position on the cylinder in advance. Then the cylinder is driven to move by the driver until the rotor main shaft passes through the cylinder, and the bearing is pressed onto the rotor main shaft. In the process of driving the cylinder to move, due to the particularity of the rotor main shaft, a rotor main shaft assembly is eccentrically arranged on one end face, which is easy to touch during installation and cause damage.

[0003] Therefore, a bearing assembly structure for a rotor main shaft is designed to avoid the technical problem of damaging the rotor main shaft assembly during the process of connecting the rotor main shaft with the bearing. Utility Model Content

[0004] The utility model aims to provide a bearing assembly structure for a rotor main shaft to solve the above technical problems.

[0005] In order to solve the above technical problems, the utility model provides a bearing assembly structure for a rotor main shaft, comprising:

[0006] A pressure head, the lower end surface of which is provided with an annular protrusion;

[0007] The space formed between the inner side of the annular protrusion and the lower end surface of the pressure head is a placement position to accommodate the top of the rotor main shaft; wherein

[0008] The pressure head is provided with a through hole for the rotor main shaft assembly arranged on the top of the rotor main shaft to pass through; and

[0009] The output end of the driving mechanism is connected to the upper end surface of the pressure head to drive the pressure head to move toward the top of the rotor main shaft, thereby pushing the bearing to slide and be sleeved on the outer wall of the rotor main shaft.

[0010] Furthermore, a stator is disposed outside the rotor main shaft; and

[0011] The outer wall of the stator is connected to the inner wall of the cylinder body.

[0012] Furthermore, a bearing mounting position is provided at the top of the cylinder body;

[0013] The center of the bearing installation position is hollowed out to allow the rotor main shaft to pass through.

[0014] Furthermore, the rotor main shaft bearing assembly structure further includes:

[0015] Rotor seat; wherein

[0016] The rotor seat is T-shaped, and the center of the vertical portion of the rotor seat is hollowed out.

[0017] Furthermore, the driving mechanism comprises: a push rod, and

[0018] A control module, and a motor controlled by the control module; wherein

[0019] One end of the push rod is connected to the output end of the motor, and the other end is connected to the upper end surface of the pressure head;

[0020] The control module is suitable for controlling the motor to start, so that when the push rod is extended, the pressure head is driven to move.

[0021] Furthermore, the driving mechanism comprises: a push rod, and

[0022] A control module, and an actuator controlled by the control module; wherein

[0023] One end of the push rod is connected to the actuator, and the other end is connected to the upper end surface of the pressure head;

[0024] The control module is suitable for controlling the actuator to start, so that when the push rod is extended, the pressure head is driven to move.

[0025] Furthermore, the actuator is a hydraulic cylinder or a pneumatic cylinder.

[0026] The beneficial effect of the utility model is that, by providing a pressure head and opening a through hole on the pressure head to accommodate the rotor main shaft assembly, when the pressure head is driven to push the cylinder body and the bearing toward the rotor main shaft, and when the bearing is connected to the rotor main shaft, the through hole is used for inserting the rotor main shaft assembly, which does not affect the connection between the rotor main shaft and the bearing, and protects the rotor main shaft assembly from being easily touched and damaged.

[0027] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0031] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0032] In the figure:

[0033] 1. Cylinder body; 10. Stator; 11. Rotor; 110. Rotor main shaft; 111. Rotor main shaft assembly; 12. Bearing mounting position;

[0034] 2. Rotor seat;

[0035] 3. Indenter; 30. Annular protrusion;

[0036] 4. Bearings. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0038] In the traditional process of installing the stator into the cylinder, the rotor and the bearing need to be connected to the cylinder. In the prior art, the bearing is pressed onto the outer wall of the rotor main shaft, and the bearing needs to be placed in the bearing mounting position on the cylinder in advance. Then the cylinder is driven to move by the driver until the rotor main shaft passes through the cylinder, and the bearing is pressed onto the rotor main shaft. In the process of driving the cylinder to move, due to the particularity of the rotor main shaft, a rotor main shaft assembly is eccentrically arranged on one end face, which is easy to touch during installation and cause damage.

[0039] By providing a pressure head 3 and opening a through hole for accommodating the rotor main shaft assembly 111 on the pressure head 3, when the pressure head 3 is driven to push the cylinder body 1 and the bearing 4 toward the rotor main shaft 110, and when the bearing 4 is connected to the rotor main shaft 110, the through hole is used for inserting the rotor main shaft assembly 111, and the connection between the rotor main shaft 110 and the bearing 4 is not affected, while protecting the rotor main shaft assembly 111 from being easily touched and damaged.

[0040] In some embodiments, Figure 1 to Figure 2 As shown, before starting to assemble, the rotor is placed on the rotor seat 2, the bottom diameter of the rotor main shaft 110 is smaller than the diameter of the center of the rotor main shaft 110, the rotor seat 2 is T-shaped, and there is a hollow at the center of its vertical part, and the diameter of the hollow is set to be the same as the bottom diameter of the rotor main shaft 110. When the rotor 11 is placed on the rotor seat 2, its bottom is inserted into the hollow in the center of the rotor seat 2 to avoid shaking of the rotor 11 during assembly.

[0041] In some embodiments, a bearing mounting position 12 is opened on the upper end surface of the cylinder body 1, and the bearing 4 is pre-placed in the bearing mounting position 12, and the outer diameter of the pressure head 3 is the same as the diameter of the bearing mounting position 12, and the pressure head 3 is inserted into the bearing mounting position 12, and at this time, the lower end surface of the bearing 4 is in contact with the bottom surface of the inner wall of the bearing mounting position, and the upper end surface of the bearing 4 is in contact with the lower end surface of the annular protrusion 30, and then the motor is started, and the push rod is used to push the pressure head 3 and the cylinder body 1 as a whole toward the rotor 11, and the rotor main shaft 110 passes through the central hollow of the bearing mounting position 12 and the bearing 4 until the top of the rotor main shaft 110 is inserted into the placement position, and at this time, the rotor main shaft assembly 111 is inserted into the through hole set on the pressure head 3, and the diameter of the through hole is the same as the diameter of the rotor bearing assembly, so as to protect the rotor main shaft assembly 111.

[0042] In some embodiments, an annular protrusion 30 is provided at the bottom of the pressure head 3 to limit the movement of the bearing 4, thereby fixing the position of the bearing sleeve on the outer wall of the rotor main shaft 110.

[0043] As another embodiment, the motor may be replaced with an actuator to drive the pressure head 3 to start, and the actuator may preferably be a hydraulic cylinder or a pneumatic cylinder.

[0044] In summary, by providing a pressure head 3 and opening a through hole on the pressure head 3 to accommodate the rotor main shaft assembly 111, when the pressure head 3 is driven to push the cylinder body 1 and the bearing 4 to move toward the rotor main shaft 110, and when the bearing 4 is connected to the rotor main shaft 110, the through hole is used for inserting the rotor main shaft assembly 111, and the connection between the rotor main shaft 110 and the bearing 4 is not affected, while protecting the rotor main shaft assembly 111 from being easily touched and damaged.

[0045] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0047] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A bearing assembly structure for a rotor main shaft, characterized in that: include: A pressure head, the lower end surface of which is provided with an annular protrusion; The space formed between the inner side of the annular protrusion and the lower end surface of the pressure head is a placement position to accommodate the top of the rotor main shaft; in The pressure head is provided with a through hole for the rotor main shaft assembly arranged on the top of the rotor main shaft to pass through; and The output end of the driving mechanism is connected to the upper end surface of the pressure head to drive the pressure head to move toward the top of the rotor main shaft, thereby pushing the bearing to slide and be sleeved on the outer wall of the rotor main shaft.

2. The rotor main shaft bearing assembly structure according to claim 1, characterized in that: A stator is disposed outside the rotor main shaft; and The outer wall of the stator is connected to the inner wall of the cylinder body.

3. The rotor main shaft bearing assembly structure according to claim 2, characterized in that: The top end of the cylinder body is provided with a bearing mounting position; wherein The center of the bearing installation position is hollowed out to allow the rotor main shaft to pass through.

4. The rotor main shaft bearing assembly structure according to claim 3, characterized in that: The rotor main shaft bearing assembly structure also includes: Rotor seat; wherein The rotor seat is T-shaped, and the center of the vertical portion of the rotor seat is hollowed out.

5. The rotor main shaft bearing assembly structure according to claim 1, characterized in that: The driving mechanism comprises: a push rod, and A control module, and a motor controlled by the control module; wherein One end of the push rod is connected to the output end of the motor, and the other end is connected to the upper end surface of the pressure head; The control module is suitable for controlling the motor to start, so that when the push rod is extended, the pressure head is driven to move.

6. The rotor main shaft bearing assembly structure according to claim 1, characterized in that: The driving mechanism comprises: a push rod, and A control module, and an actuator controlled by the control module; wherein One end of the push rod is connected to the actuator, and the other end is connected to the upper end surface of the pressure head; The control module is suitable for controlling the actuator to start, so that when the push rod is extended, the pressure head is driven to move.

7. The rotor main shaft bearing assembly structure according to claim 6, characterized in that: The actuator is a hydraulic cylinder or a pneumatic cylinder.

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