Hollow shaft servo motor device

Abstract

The utility model relates to a hollow shaft servo motor device which comprises a casing main body, a stator is arranged inside the casing main body, a rotor is rotatably connected inside the stator, a hollow shaft is fixedly connected to an output shaft of the rotor, and a noise reduction structure is arranged on the outer surface of the casing main body. The noise reduction structure comprises a box body, a cover body, a through hole, a first fixing frame, a second fixing frame, first sound insulation cotton, second sound insulation cotton, a connecting plate and a bolt. According to the hollow shaft servo motor device, a noise reduction structure is arranged, a cover body is opened, a machine shell body is clamped to a first fixing frame, a hollow shaft is inserted into a through hole, first sound insulation cotton and second sound insulation cotton are arranged, noise generated by a servo motor is absorbed by the sound insulation cotton, the cover body is buckled, and the bottom of a second fixing frame is clamped to the top end of the machine shell body; and the whole servo motor is wrapped, so that the noise of the hollow shaft servo motor is reduced, and the applicability of the hollow shaft servo motor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of servo motors, in particular to a hollow shaft servo motor device. Background Art

[0002] Servo motors can control speed and position with very high accuracy. They can convert voltage signals into torque and speed to drive the controlled object. They are divided into two categories: DC and AC servo motors. Their main characteristics are that there is no self-rotation when the signal voltage is zero, and the speed decreases uniformly with the increase of torque.

[0003] Nowadays, in the application of servo motors, the heavy rotor will cause the motor to vibrate, run unsteadily, and make a lot of noise. The additional resistance torque is also too large, which seriously affects the normal operation of the motor. Therefore, a hollow shaft servo motor device is proposed to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a hollow shaft servo motor device, which has the advantages of noise reduction and the like, and solves the problem of high noise of the hollow shaft servo motor.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a hollow shaft servo motor device, including a casing main body, a stator is arranged inside the casing main body, a rotor is rotatably connected inside the stator, a hollow shaft is fixedly connected to the output shaft of the rotor, and a noise reduction structure is arranged on the outer surface of the casing main body.

[0008] The noise reduction structure includes a box body, a cover body, a through hole, a first fixing frame, a second fixing frame, a first sound insulation cotton, a second sound insulation cotton, a connecting plate and bolts. The outer surface of the casing main body is provided with a box body, the top of the box body is provided with a cover body, the front side wall of the box body is provided with a through hole, the inner bottom wall of the box body is fixedly installed with two first fixing frames, the bottom of the cover body is fixedly installed with two second fixing frames, the inner bottom wall of the box body is fixedly installed with the first sound insulation cotton, the left and right inner walls of the box body are fixedly installed with the second sound insulation cotton, the left and right outer surfaces of the box body are provided with connecting plates, and two bolts are provided on the connecting plates.

[0009] Furthermore, the front end of the hollow shaft extends to the outside of the box body through the through hole, and the hollow shaft is rotatably connected to the through hole through a bearing.

[0010] Furthermore, the top ends of the two first fixing frames are snap-fitted to the bottom end of the casing body, and the bottom ends of the two second fixing frames are snap-fitted to the top end of the casing body.

[0011] Furthermore, the bottom end of the first fixing frame passes through the first sound insulation cotton and extends to the inner bottom wall of the box body, and the two second sound insulation cottons are symmetrically arranged on the left and right.

[0012] Furthermore, the top ends of the two first fixing frames are adapted to the size of the bottom end of the casing body, and the bottom ends of the two second fixing frames are adapted to the size of the top end of the casing body.

[0013] Furthermore, rubber pads are fixedly installed on the tops of the two first fixing frames, and rubber pads are fixedly installed on the bottoms of the two second fixing frames.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] 1. The hollow shaft servo motor device is provided with a noise reduction structure. The cover is opened, the casing body is clamped to the first fixing frame, the hollow shaft is inserted into the through hole, and the first sound insulation cotton and the second sound insulation cotton are arranged so that the noise emitted by the servo motor is absorbed by the sound insulation cotton. The cover is buckled, and the bottom of the second fixing frame is clamped to the top of the casing body to wrap the entire servo motor to achieve the noise reduction of the hollow shaft servo motor.

[0017] 2. The hollow shaft servo motor device is provided with a hollow shaft servo motor. The interior of the casing body is provided with a hollow structure. The stator is fixed inside the casing body. The rotor is fixed inside the stator. The stator drives the rotor through electromagnetic force. A roller screw and a screw nut are installed inside the rotor, so that the hollow shaft can be quickly installed. The hollow shaft is filled with coolant, thereby improving the applicability of the hollow shaft servo motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view cross-sectional view of the utility model;

[0019] Figure 2 It is a side sectional view of the utility model;

[0020] Figure 3 It is a three-dimensional structural diagram of the utility model;

[0021] Figure 4 This is a schematic diagram of the noise reduction structure of the utility model.

[0022] In the figure: 1. casing body; 2. stator; 3. rotor; 4. hollow shaft; 5. noise reduction structure; 501. box body; 502. cover body; 503. through hole; 504. first fixing frame; 505. second fixing frame; 506. first sound insulation cotton; 507. second sound insulation cotton; 508. connecting plate; 509. bolt. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-4 In this embodiment, a hollow shaft servo motor device includes a casing body 1, a stator 2 is arranged inside the casing body 1, a rotor 3 is rotatably connected inside the stator 2, a hollow shaft 4 is fixedly connected at the output shaft of the rotor 3, a noise reduction structure 5 is arranged on the outer surface of the casing body 1, and the noise reduction structure 5 includes a box body 501, a cover body 502, a through hole 503, a first fixing frame 504, a second fixing frame 505, a first sound insulation cotton 506, a second sound insulation cotton 507, a connecting plate 508 and a bolt 509, and a box body 501 is arranged on the outer surface of the casing body 1, a box A cover body 502 is provided on the top of the box body 501, a through hole 503 is opened on the front side wall of the box body 501, two first fixing frames 504 are fixedly installed on the inner bottom wall of the box body 501, two second fixing frames 505 are fixedly installed on the bottom of the cover body 502, a first sound insulation cotton 506 is fixedly installed on the inner bottom wall of the box body 501, and second sound insulation cotton 507 is fixedly installed on the inner walls of the left and right sides of the box body 501, and connecting plates 508 are provided on the outer surfaces of the left and right sides of the box body 501, and two bolts 509 are provided on the connecting plates 508.

[0025] like Figure 2 and Figure 3 As shown, the front end of the hollow shaft 4 extends to the outside of the box body 501 through the through hole 503, and the hollow shaft 4 is rotatably connected to the through hole 503 through a bearing, thereby isolating the sound of the servo motor inside the box body 501. The servo motor can drive the hollow shaft 4 inside the box body 501 through the through hole 503.

[0026] like Figure 1 and Figure 2As shown, the top ends of the two first fixing frames 504 are snap-fitted to the bottom end of the casing body 1, and the bottom ends of the two second fixing frames 505 are snap-fitted to the top end of the casing body 1. The first fixing frames 504 and the second fixing frames 505 fix the servo motor to reduce vibration and noise.

[0027] like Figure 1 and Figure 2 As shown, the bottom end of the first fixing frame 504 passes through the first sound insulation cotton 506 and extends to the inner bottom wall of the box body 501. The two second sound insulation cottons 507 are symmetrically arranged on the left and right. The first sound insulation cotton 506 and the second sound insulation cotton 507 absorb the noise generated inside the box body 501 to reduce the external emission of noise.

[0028] like Figure 1 and Figure 2 As shown, the top ends of the two first fixing frames 504 are adapted to the size of the bottom end of the casing body 1, and the bottom ends of the two second fixing frames 505 are adapted to the size of the top end of the casing body 1. The first fixing frames 504 and the second fixing frames 505 can firmly fix the servo motor inside the box body 501, so that it is fixed in the box body 501.

[0029] like Figure 1 and Figure 4 As shown, rubber pads are fixedly installed on the tops of the two first fixing frames 504, and rubber pads are fixedly installed on the bottoms of the two second fixing frames 505. The rubber pads on the upper and lower sides can reduce the vibration generated in the servo motor and the noise reduction box.

[0030] When implementing, follow these steps:

[0031] 1) First open the cover 2 and place the housing body 1 on the first fixing frame 504;

[0032] 2) Then insert the hollow shaft 4 into the through hole 503 and cover the cover 2;

[0033] 3) Finally, turn on the servo motor to reduce the noise generated by the servo motor.

[0034] The hollow shaft servo motor device can reduce noise and vibration, and can be widely promoted and used in suitable fields, such as industrial automation, machinery manufacturing, aerospace manufacturing and other fields.

[0035] To summarize, the hollow shaft servo motor device, by setting a noise reduction structure 5, opens the cover 502, snaps the casing body 1 into the first fixing frame 504, inserts the hollow shaft 4 into the through hole 503, arranges the first sound insulation cotton 506 and the second sound insulation cotton 507, so that the noise emitted by the servo motor is absorbed by the sound insulation cotton, buckles the cover 502, and snaps the bottom of the second fixing frame 505 into the top of the casing body 1 to wrap the entire servo motor to achieve the noise reduction of the hollow shaft servo motor. The hollow shaft servo motor device, by setting a hollow shaft servo motor, the interior of the casing body 1 is set as a hollow structure, the interior of the casing body 1 is fixed with a stator 2, the rotor 3 is fixedly installed inside the stator 2, the stator 2 drives the rotor 3 by electromagnetic force, and the rotor 3 is installed with a roller screw and a screw nut, so that the hollow shaft 4 can be quickly installed, and the hollow shaft 4 is filled with coolant to improve the applicability of the hollow shaft servo motor.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hollow shaft servo motor device, comprising a housing body (1), characterized in that: A stator (2) is arranged inside the casing body (1), a rotor (3) is rotatably connected inside the stator (2), a hollow shaft (4) is fixedly connected to the output shaft of the rotor (3), and a noise reduction structure (5) is arranged on the outer surface of the casing body (1); The noise reduction structure (5) comprises a box body (501), a cover body (502), a through hole (503), a first fixing frame (504), a second fixing frame (505), a first sound insulation cotton (506), a second sound insulation cotton (507), a connecting plate (508) and a bolt (509); the outer surface of the housing body (1) is provided with a box body (501); the top of the box body (501) is provided with a cover body (502); the front side wall of the box body (501) is provided with a through hole (503); the inner wall of the box body (501) is provided with a through hole (503); Two first fixing frames (504) are fixedly installed on the bottom wall, two second fixing frames (505) are fixedly installed on the bottom of the cover body (502), the inner bottom wall of the box body (501) is fixedly installed with a first sound insulation cotton (506), the left and right inner walls of the box body (501) are fixedly installed with a second sound insulation cotton (507), and the left and right outer surfaces of the box body (501) are both provided with connecting plates (508), and the connecting plates (508) are provided with two bolts (509).

2. A hollow shaft servo motor device according to claim 1, characterized in that: The front end of the hollow shaft (4) extends to the outside of the box body (501) through the through hole (503), and the hollow shaft (4) is rotatably connected to the through hole (503) via a bearing.

3. The hollow shaft servo motor device according to claim 1, characterized in that: The top ends of the two first fixing frames (504) are snap-fitted to the bottom end of the casing body (1), and the bottom ends of the two second fixing frames (505) are snap-fitted to the top end of the casing body (1).

4. The hollow shaft servo motor device according to claim 1, characterized in that: The bottom end of the first fixing frame (504) passes through the first sound insulation cotton (506) and extends to the inner bottom wall of the box body (501), and the two second sound insulation cottons (507) are arranged symmetrically on the left and right.

5. The hollow shaft servo motor device according to claim 1, characterized in that: The top ends of the two first fixing frames (504) are adapted to the size of the bottom end of the casing body (1), and the bottom ends of the two second fixing frames (505) are adapted to the size of the top end of the casing body (1).

6. The hollow shaft servo motor device according to claim 1, characterized in that: The top ends of the two first fixing frames (504) are fixedly mounted with rubber pads, and the bottom ends of the two second fixing frames (505) are fixedly mounted with rubber pads.

Images