Main shaft mounting structure of permanent magnet synchronous motor

Abstract

The utility model discloses a permanent magnet synchronous motor main shaft installation structure, and relates to the permanent magnet synchronous motor technology field, the permanent magnet synchronous motor main shaft installation structure comprises an installation rack, the outer wall of the installation rack is fixedly connected with an electric push rod, through arranging a placing rod, when the motor main shaft is installed through the installation rack, the placing rod is arranged to improve the pre-positioning effect when the main shaft and the motor are installed; when the spindle is installed, the spindle is firstly placed on the top of a placing rod, an electric push rod is opened to drive a sliding rod to slide along the inner wall of a sliding groove and drive the spindle to do telescopic motion, and according to the requirement for the size and height of the motor, the spindle is placed on the top of the placing rod, so that the spindle can be conveniently installed. And a first rotary knob is rotated to drive a placing rod to do lifting motion along the outer wall of a sliding rod through rotation of a first threaded rod, the effect of mounting, supporting and positioning the main shaft is achieved, and the effect of improving the mounting precision between the main shaft and the motor is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of permanent magnet synchronous motors, in particular to a permanent magnet synchronous motor main shaft installation structure. Background Art

[0002] Permanent magnet synchronous motors use permanent magnets to provide excitation, which makes the motor structure simpler, reduces processing and assembly costs, and eliminates collector rings and brushes that are prone to problems, thereby improving the reliability of motor operation. Because no excitation current is required and there is no excitation loss, the efficiency and power density of the motor are improved. Permanent magnet synchronous motors are composed of components such as stators, rotors, and end covers. The stator is basically the same as an ordinary induction motor, and a laminated structure is used to reduce iron loss during motor operation. The rotor can be made solid or laminated. The armature winding can be a concentrated full-pitch winding, a distributed short-pitch winding, or an unconventional winding. When assembling and using the permanent magnet synchronous motor, it will be necessary to use a mounting frame to assist the main shaft and the permanent magnet synchronous motor in the installation operation.

[0003] However, although the existing permanent magnet synchronous motor spindle mounting structure can perform better installation operations on the spindle when in use, when installing the spindle on the motor, the installer is required to manually insert the spindle into the interior of the motor, so that when the spindle and the motor are installed, the installer is required to frequently adjust the installation position of the spindle, and the pre-positioning support effect during the installation of the spindle is not high, thereby reducing the installation efficiency and installation accuracy of the spindle and the motor.

[0004] Therefore, in view of this, the shortcomings of the existing structure are studied and improved, and a permanent magnet synchronous motor main shaft installation structure is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a permanent magnet synchronous motor spindle mounting structure to solve the problem proposed in the above background technology that the installer needs to manually insert the spindle into the interior of the motor, so that when the spindle and the motor are installed, the installer needs to frequently adjust the installation position of the spindle, and the pre-positioning support effect during the installation of the spindle is not high.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a permanent magnet synchronous motor spindle mounting structure, comprising a mounting frame, an outer wall of the mounting frame is fixedly connected to an electric push rod, one end of the electric push rod is fixedly connected to a sliding rod slidably connected to the outer wall of the mounting frame, a sliding groove is provided at the connecting portion between the outer wall of the mounting frame and the sliding rod, the outer wall of the sliding rod is rotatably connected to a first threaded rod, one end of the first threaded rod is fixedly connected to a first knob, the outer wall of the first threaded rod is threadedly connected to a placement rod slidably connected to the outer wall of the sliding rod, and the spindle body is placed on the top of the placement rod.

[0007] Furthermore, the outer wall of the mounting bracket is slidably connected to the motor body, a placement groove is provided at the connection position between the outer wall of the mounting bracket and the motor body, the inner wall of the mounting bracket is rotatably connected to the second threaded rod, one end of the second threaded rod is fixedly connected to the second knob, the outer wall of the second threaded rod is threadedly connected to the threaded sliding rod slidably connected to the inner wall of the mounting bracket, a connecting groove is provided at the connection position between the inner wall of the mounting bracket and the threaded sliding rod, the outer wall of the threaded sliding rod is rotatably connected to the rotating rod, one end of the rotating rod is rotatably connected to a clamping rod slidably connected to the inner wall of the mounting bracket, a fixing groove is provided at the connection position between the inner wall of the mounting bracket and the clamping rod, and a clamping groove is provided at the connection position between the side wall of the motor body and the clamping rod.

[0008] Furthermore, a lifting groove is provided at a connection position between the outer wall of the sliding rod and the placement rod.

[0009] Furthermore, the top outer wall profile of the placement rod is semicircular, and the top outer wall profile of the placement rod is adapted to the outer wall profile of the main shaft body.

[0010] Furthermore, the inner wall profile of the placement groove is in a "U" shape.

[0011] Furthermore, two groups of rotating rods are provided, and the positions of the two groups of rotating rods are distributed symmetrically with respect to the central axis of the threaded sliding rod.

[0012] Furthermore, the clamping rods are symmetrically arranged on both sides of the motor body.

[0013] Furthermore, the clamping slot and the clamping rod are arranged in a one-to-one correspondence, and the inner wall contour of the clamping slot is larger than the outer wall contour of the clamping rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model provides a placement rod. When the motor spindle is installed through the mounting frame, in order to improve the pre-positioning effect of the spindle and the motor during installation, reduce the cumbersomeness of the installation personnel holding the spindle for installation, and reduce the installation accuracy between the spindle and the motor, the spindle can be placed on the top of the placement rod when the spindle is installed, and the electric push rod is turned on to drive the sliding rod to slide along the inner wall of the slide groove, driving the spindle to perform telescopic movement, and according to the requirements of the motor size and height, the first knob is turned to drive the placement rod to perform lifting and lowering movement along the outer wall of the sliding rod through the rotation of the first threaded rod, thereby playing the role of supporting and positioning the spindle installation, and achieving the effect of improving the installation accuracy between the spindle and the motor;

[0016] 2. The utility model provides a clamping rod. When the motor spindle is installed, in order to improve the accuracy of the placement of the motor on the mounting frame and prevent the motor from being shifted when the spindle is inserted into the motor for installation, the motor can be slid into the outer wall of the mounting frame through the connection of the placement groove, and the second knob is turned to drive the threaded sliding rod to slide along the inner wall of the connecting groove through the rotation of the second threaded rod. The sliding of the threaded sliding rod drives the clamping rod to slide along the inner wall of the fixed groove through the rotation of the rotating rod, so that the clamping rod is inserted into the inner wall of the clamping groove, which plays a role in stabilizing the placement position of the motor on the mounting frame and achieves the effect of improving the installation accuracy between the spindle and the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the three-dimensional structure of the mounting frame;

[0018] Figure 2 A schematic diagram of the three-dimensional structure for installation in another direction;

[0019] Figure 3 It is a schematic diagram of the connection structure between the placement rod and the main shaft body;

[0020] Figure 4 It is a schematic diagram of the connection structure between the rotating rod and the clamping rod.

[0021] In the figure: 1. mounting frame; 2. electric push rod; 3. sliding rod; 4. sliding groove; 5. first threaded rod; 6. first knob; 7. placement rod; 8. spindle body; 9. placement groove; 10. motor body; 11. second threaded rod; 12. second knob; 13. threaded sliding rod; 14. connecting groove; 15. rotating rod; 16. clamping rod; 17. fixing groove; 18. clamping groove. DETAILED DESCRIPTION

[0022] 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.

[0023] Embodiment 1: Figure 1-Figure 3As shown, a permanent magnet synchronous motor spindle mounting structure comprises a mounting frame 1, an outer wall of the mounting frame 1 is fixedly connected to an electric push rod 2, one end of the electric push rod 2 is fixedly connected to a sliding rod 3 slidably connected to the outer wall of the mounting frame 1, a sliding groove 4 is provided at the connecting portion between the outer wall of the mounting frame 1 and the sliding rod 3, the outer wall of the sliding rod 3 is rotatably connected to a first threaded rod 5, one end of the first threaded rod 5 is fixedly connected to a first knob 6, the outer wall of the first threaded rod 5 is threadedly connected to a placement rod 7 slidably connected to the outer wall of the sliding rod 3, and a spindle body 8 is placed on the top of the placement rod 7.

[0024] Furthermore, a lifting groove is provided at the connection position between the outer wall of the sliding rod 3 and the placement rod 7. The placement rod 7 forms a lifting structure through the first threaded rod 5 and the sliding rod 3, which is beneficial to the rotation of the first threaded rod 5, driving the placement rod 7 to perform lifting and lowering movements along the outer wall of the sliding rod 3, thereby driving the height adjustment of the main shaft to be installed.

[0025] Furthermore, the top outer wall contour of the placing rod 7 is semicircular, and the top outer wall contour of the placing rod 7 is adapted to the outer wall contour of the main shaft body 8. This is beneficial for pre-positioning the main shaft to be installed by setting the top outer wall contour of the placing rod 7 in a semicircular shape, thereby achieving the effect of improving the installation position accuracy of the main shaft and the motor.

[0026] Embodiment 2: Figure 1 , Figure 2 and Figure 4As shown, a permanent magnet synchronous motor spindle mounting structure proposed by the utility model, compared with the first embodiment, as another implementation mode of the utility model, the outer wall of the mounting frame 1 is slidably connected with the motor body 10, and the connecting portion between the outer wall of the mounting frame 1 and the motor body 10 is provided with a placement groove 9, the inner wall of the mounting frame 1 is rotatably connected with a second threaded rod 11, one end of the second threaded rod 11 is fixedly connected with a second knob 12, the outer wall of the second threaded rod 11 is threadedly connected with a threaded slide rod 13 slidably connected to the inner wall of the mounting frame 1, the connecting portion between the inner wall of the mounting frame 1 and the threaded slide rod 13 is provided with a connecting groove 14, the outer wall of the threaded slide rod 13 is rotatably connected with a rotating rod 15, one end of the rotating rod 15 is rotatably connected with a clamping rod 16 slidably connected to the inner wall of the mounting frame 1, and the connecting portion between the inner wall of the mounting frame 1 and the clamping rod 16 is provided with a fixed The connecting part of the side wall of the motor body 10 and the clamping rod 16 is provided with a clamping groove 18. When working, by setting the clamping rod 16, it is beneficial to improve the accuracy of the placement of the motor on the mounting frame 1 when installing the motor spindle, and prevent the motor from being offset when the spindle is inserted into the motor for installation. The motor can be slid into the outer wall of the mounting frame 1 through the connection of the placement groove 9, and the second knob 12 is rotated to drive the threaded slide rod 13 to slide along the inner wall of the connecting groove 14 through the rotation of the second threaded rod 11. The sliding of the threaded slide rod 13 drives the clamping rod 16 to slide along the inner wall of the fixed groove 17 through the rotation of the rotating rod 15, so that the clamping rod 16 is inserted into the inner wall of the clamping groove 18, which plays a role in the stability of the placement position of the motor on the mounting frame 1, thereby achieving the effect of improving the installation accuracy between the spindle and the motor.

[0027] Furthermore, the inner wall profile of the placement groove 9 is in a “U” shape, which is beneficial for pre-positioning the motor on the mounting frame 1 through the setting of the inner wall profile of the placement groove 9 in a “U” shape.

[0028] Furthermore, two groups of rotating rods 15 are provided, and the position distribution of the two groups of rotating rods 15 is symmetrical about the central axis of the threaded sliding rod 13. The rotating rods 15 form a rotating structure through the threaded sliding rod 13 and the clamping rod 16, which is beneficial to the sliding of the threaded sliding rod 13 through the connection of the clamping rod 16, thereby driving the rotating rod 15 to rotate effectively, thereby driving the clamping rod 16 to facilitate telescopic movement.

[0029] Furthermore, the clamping rod 16 is symmetrically arranged on both sides of the motor body 10, and the motor body 10 forms a clamping structure with the mounting frame 1 through the clamping rod 16 and the clamping slot 18, which is conducive to the clamping rod 16 sliding along the inner wall of the clamping slot 18, thereby driving the motor body 10 and the mounting frame 1 to be clamped and fixed, thereby achieving the effect of improving the stability of the motor on the mounting frame 1.

[0030] Furthermore, the card slot 18 and the card rod 16 are arranged in a one-to-one correspondence, and the inner wall contour of the card slot 18 is larger than the outer wall contour of the card rod 16. This is beneficial for ensuring the stability of the position of the motor on the mounting frame 1 through the one-to-one correspondence between the card slot 18 and the card rod 16, thereby achieving the effect of improving the installation accuracy between the spindle and the motor.

[0031] Working principle: When using this permanent magnet synchronous motor spindle installation structure, first, when the motor spindle is installed through the mounting frame 1, in order to improve the pre-positioning effect of the spindle and the motor during installation, reduce the cumbersomeness of the installer holding the spindle for installation, and reduce the installation accuracy between the spindle and the motor, when installing the spindle, the spindle can be placed on the top of the placement rod 7, and the electric push rod 2 is turned on to drive the sliding rod 3 to slide along the inner wall of the slide groove 4, driving the spindle to perform telescopic movement, and according to the requirements of the motor size and height, the first knob 6 is turned through the rotation of the first threaded rod 5 to drive the placement rod 7 to perform lifting and lowering movements along the outer wall of the sliding rod 3, which plays a role in supporting and positioning the spindle installation, thereby achieving the effect of improving the installation accuracy between the spindle and the motor.

[0032] Finally, when installing the motor spindle, in order to improve the accuracy of the placement of the motor on the mounting frame 1 and prevent the motor from being displaced when the spindle is inserted into the motor for installation, the motor can be slid into the outer wall of the mounting frame 1 through the connection of the placement slot 9, and the second knob 12 is rotated to drive the threaded slide rod 13 to slide along the inner wall of the connecting slot 14 through the rotation of the second threaded rod 11. The sliding of the threaded slide rod 13 drives the clamping rod 16 to slide along the inner wall of the fixed slot 17 through the rotation of the rotating rod 15, so that the clamping rod 16 is inserted into the inner wall of the clamping slot 18, which plays a role in stabilizing the placement of the motor on the mounting frame 1 and achieving the effect of improving the installation accuracy between the spindle and the motor.

[0033] This is the working principle of the main shaft mounting structure of a permanent magnet synchronous motor.

[0034] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A permanent magnet synchronous motor main shaft mounting structure, comprising a mounting frame (1), characterized in that: The outer wall of the mounting frame (1) is fixedly connected to an electric push rod (2), one end of the electric push rod (2) is fixedly connected to a sliding rod (3) slidably connected to the outer wall of the mounting frame (1), a sliding groove (4) is provided at the connection portion between the outer wall of the mounting frame (1) and the sliding rod (3), the outer wall of the sliding rod (3) is rotatably connected to a first threaded rod (5), one end of the first threaded rod (5) is fixedly connected to a first knob (6), the outer wall of the first threaded rod (5) is threadedly connected to a placement rod (7) slidably connected to the outer wall of the sliding rod (3), and a main shaft body (8) is placed on the top of the placement rod (7).

2. A permanent magnet synchronous motor main shaft mounting structure according to claim 1, characterized in that: The outer wall of the mounting frame (1) is slidably connected to the motor body (10); a placement groove (9) is provided at a connection position between the outer wall of the mounting frame (1) and the motor body (10); a second threaded rod (11) is rotatably connected to the inner wall of the mounting frame (1); one end of the second threaded rod (11) is fixedly connected to a second knob (12); the outer wall of the second threaded rod (11) is threadedly connected to a threaded sliding rod (13) slidably connected to the inner wall of the mounting frame (1); a connection groove (14) is provided at a connection position between the inner wall of the mounting frame (1) and the threaded sliding rod (13); a rotating rod (15) is rotatably connected to the outer wall of the threaded sliding rod (13); one end of the rotating rod (15) is rotatably connected to a clamping rod (16) slidably connected to the inner wall of the mounting frame (1); a fixing groove (17) is provided at a connection position between the inner wall of the mounting frame (1) and the clamping rod (16); a clamping groove (18) is provided at a connection position between the side wall of the motor body (10) and the clamping rod (16).

3. The permanent magnet synchronous motor main shaft mounting structure according to claim 1, characterized in that: A lifting groove is provided at the connection position between the outer wall of the sliding rod (3) and the placement rod (7).

4. A permanent magnet synchronous motor main shaft mounting structure according to claim 2, characterized in that: The top outer wall profile of the placement rod (7) is semicircular, and the top outer wall profile of the placement rod (7) is adapted to the outer wall profile of the main shaft body (8).

5. The permanent magnet synchronous motor main shaft mounting structure according to claim 2, characterized in that: The inner wall profile of the placement groove (9) is in a "U" shape.

6. A permanent magnet synchronous motor main shaft mounting structure according to claim 2, characterized in that: Two groups of rotating rods (15) are provided, and the positions of the two groups of rotating rods (15) are distributed symmetrically with respect to the central axis of the threaded sliding rod (13).

7. The permanent magnet synchronous motor main shaft mounting structure according to claim 2, characterized in that: The clamping rods (16) are symmetrically arranged on both sides of the motor body (10).

8. The permanent magnet synchronous motor main shaft mounting structure according to claim 2, characterized in that: The clamping slot (18) and the clamping rod (16) are arranged in a one-to-one correspondence, and the inner wall profile of the clamping slot (18) is larger than the outer wall profile of the clamping rod (16).

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