Shock absorption and noise reduction type servo motor

Abstract

The invention relates to the technical field of servo motors, in particular to a shock absorption and noise reduction type servo motor which comprises a motor outer shell, the bottom face of a bottom plate is connected with a mounting base through four sets of spring shock absorbers which are symmetrically arranged, and two sets of regulation and control pipes are symmetrically mounted in the middle of the upper surface of the mounting base; and a regulation and control plate used for reducing the vibration amplitude of the motor outer shell is connected to the upper portion of the rear end of the regulation and control pipe, the upper portion of the regulation and control plate is connected with the bottom face of the bottom plate through a first rubber pad, auxiliary supporting plates are installed at the four corners of the upper portion of the installation base, and the upper ends of the auxiliary supporting plates are connected with the bottom plate. According to the shock absorption and noise reduction type servo motor, when the motor outer shell vibrates downwards, the regulation and control plate can apply an upward thrust to the motor outer shell, so that the vibration amplitude of the motor outer shell can be further reduced, and the shock absorption and noise reduction effects of the servo motor in long-time use are improved; and meanwhile, the service life of the first damping spring and the spring damper can be prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of servo motors, in particular to a vibration-reducing and noise-reducing servo motor. Background Art

[0002] Servo motors are the core actuators in industrial automation and are widely used in various automated production lines, robots, CNC machine tools and other equipment. By using servo motors together with other equipment, a series of automated operations can be completed, thereby improving production efficiency in industrial automation. For example, the patent title disclosed in the prior art with the announcement number "CN116566112A" is "A servo motor with vibration reduction and noise reduction and its assembly method", which discloses that the vibration generated by the servo motor in daily use is reduced by a first vibration reduction mechanism and a second vibration reduction mechanism. When the servo motor vibrates, it drives the motor housing to vibrate. At this time, the first vibration reduction spring on the first vibration reduction mechanism initially reduces the vibration. At the same time, when the motor housing vibrates, the slider on the second vibration reduction mechanism moves in the guide rail. During the movement, the second vibration reduction spring reduces the movement frequency of the slider, thereby reducing the vibration of the motor housing. When the rotating shaft body rotates, the noise reduction mechanism is used to reduce noise. The noise reduction mechanism suspends the rotating shaft body in the motor housing through the bearing fixed in the fixed groove, so that the noise is reduced when the rotating shaft body rotates, which can reduce the vibration amplitude of the servo motor, avoid the loosening of parts caused by vibration, and increase the service life of the motor. At the same time, it can reduce the noise generated during the vibration process, as well as the prior art announcement number " The patent name disclosed in "CN112467924B" is "A servo motor", which discloses that the motor mounting seat will take away the heat generated by the motor to keep the motor temperature constant, and the sound-absorbing sponges inside the two silencer covers can effectively absorb and reduce the noise generated by the motor by using their unique comprehensive properties such as sound absorption, heat insulation, flame retardancy, high temperature resistance, water absorption, and light weight. At the same time, the motor can be operated in an environment with constant temperature and humidity, making the motor operation more stable, and at the same time protecting the staff from being injured by operating errors or accidental explosions of the motor. The vibration generated when the motor is running will drive the sliding platform to vibrate together, and the sliding platform will drive the four small circular plates to shake, and the four small circular plates will drive the four sliding rods to slide in the four sliding bases respectively, and four shock-absorbing springs are used to reduce the vibration amplitude, so that the motor can run stably, and at the same time, the noise generated by the vibration can be reduced to protect the ears of the staff from being damaged.

[0003] Although the servo motor in the above-mentioned prior art can slide in the sliding base through the sliding rod, and then cooperate with the shock-absorbing spring to reduce the vibration amplitude, thereby achieving the effect of shock absorption and noise reduction, the shock-absorbing spring will be continuously subjected to alternating stress of tension and compression during long-term use, so that the shock-absorbing spring will bear a certain load for a long time, which will in turn affect the elastic performance and shock-absorbing effect of the shock-absorbing spring, thereby making the shock absorption and noise reduction effect of the servo motor poor after long-term use. Therefore, we propose a shock-absorbing and noise-reducing servo motor to solve the above-mentioned problems. Summary of the invention

[0004] The purpose of the present invention is to provide a shock-absorbing and noise-reducing servo motor to solve the problem raised in the above background technology that the servo motors on the market currently have a shock-absorbing spring that is constantly subjected to alternating stresses of tension and compression during long-term use, causing the shock-absorbing spring to bear a certain load for a long time, which in turn affects the elastic properties and shock-absorbing effect of the shock-absorbing spring, thereby causing the servo motor to have poor shock-absorbing and noise-reducing effects after long-term use.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a shock-absorbing and noise-reducing servo motor, comprising a motor housing, and a base plate installed under the motor housing, the bottom surface of the base plate being connected to a mounting seat through four symmetrically arranged groups of spring shock absorbers, two groups of regulating tubes being symmetrically installed in the middle of the upper surface of the mounting seat, an automatic control board being connected to the upper front end of the regulating tube, the upper part of the automatic control board being fixedly connected to the base plate, a regulating plate for reducing the vibration amplitude of the motor housing being connected to the upper rear end of the regulating tube, the upper part of the regulating plate being connected to the bottom surface of the base plate through a first rubber pad, auxiliary support plates being installed at the four upper corners of the mounting seat, and the upper end of the auxiliary support plate being connected to the base plate.

[0006] Preferably, the regulating tube is arranged in a "U" shape, and a first piston assembly is slidably connected to the inside of the front end of the regulating tube, the bottom surface of the first piston assembly is connected to the first connecting spring inside the front end of the regulating tube, and the upper end of the first piston assembly is connected to the automatic control board.

[0007] Furthermore, through the arrangement of the above structure, a certain amount of gas can be stored in the control tube arranged in a "U" shape, so that the first piston assembly can automatically drive the automatic control plate to rise and fall without the need for an additional power source, thus saving energy.

[0008] Preferably, a second piston assembly is slidably connected inside the rear end of the regulating tube, the bottom surface of the second piston assembly is connected to the second connecting spring inside the rear end of the regulating tube, and the upper end of the second piston assembly is connected to the regulating plate.

[0009] Furthermore, through the arrangement of the above structure, the second piston assembly can automatically drive the control plate to move up and down without the need for an additional power source, thus saving energy.

[0010] Preferably, the auxiliary support plate is arranged in an inclined shape, and the bottom surface of the auxiliary support plate is rotatably connected to a moving block, a sliding rod is arranged inside the moving block, and a first shock-absorbing spring is nested and connected to the outer side of one end of the sliding rod, and the sliding rod is installed in a groove opened above the mounting seat.

[0011] Furthermore, through the arrangement of the above structure, the inclined auxiliary support plate can further provide auxiliary support and shock absorption to the bottom plate and the motor housing, thereby ensuring that the motor housing can be used well.

[0012] Preferably, the lower part of the moving block is arranged in a "7"-shaped structure.

[0013] Furthermore, the above-mentioned structure is arranged to facilitate the contact between the moving block in the shape of a figure "7" and the fixed rod.

[0014] Preferably, a bidirectional screw rod is rotatably connected to the inside of the mounting seat, and connecting blocks are threadedly connected to the outer sides of the left and right ends of the bidirectional screw rod, and fixed rods are fixed on the front and rear sides of the connecting block, and the end of the fixed rod away from the connecting block is arranged to fit with a side surface below the moving block.

[0015] Furthermore, through the arrangement of the above structure, it is convenient to adjust the position of the fixed rod, thereby locking the moving block and unlocking the moving block, which facilitates the use of the moving block.

[0016] Preferably, the sum of the heights of the regulating plate and the first rubber pad is greater than the height of the automatic control plate.

[0017] Furthermore, through the arrangement of the above structure, when the automatic control board descends, the regulating board can rise well, so that the regulating board can exert an upward thrust on the bottom plate and the motor housing well, which is convenient for reducing the vibration amplitude in the later stage.

[0018] Preferably, the upper surface of the mounting seat is connected to an auxiliary lifting plate via a support frame, the auxiliary lifting plate is rotatably connected to the support frame, and the auxiliary lifting plate is arranged on the upper outer side of the regulating tube.

[0019] Furthermore, through the arrangement of the above structure, the auxiliary lifting plate can rotate well in the support frame, and the auxiliary lifting plate can be reversely rotated and reset by lowering the regulating plate in the later stage to facilitate the next use.

[0020] Preferably, a first rotating roller is connected to the lower front side of the automatic control plate, and a second rotating roller is connected to the lower rear side of the regulating plate.

[0021] Furthermore, through the arrangement of the above-mentioned structure, the arrangement of the first cylindrical rotating roller and the second rotating roller can reduce the friction with the rotating auxiliary lifting plate, thereby facilitating the auxiliary lifting plate to rotate well without generating much noise.

[0022] Preferably, a second rubber pad is installed on the upper surface of the auxiliary lifting plate, the auxiliary lifting plate and the second rubber pad are both arranged in an "H" shape, and the lower parts of the first rotating roller and the second rotating roller are both arranged in contact with the second rubber pad.

[0023] Furthermore, through the setting of the above-mentioned structure, the auxiliary lifting plate arranged in an "H" shape is well arranged on the upper outer side of the control tube, so that the auxiliary lifting plate can lift the rising control plate later to improve the stability of the control plate.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: when the motor housing vibrates downward, the control plate can apply an upward thrust to the motor housing, thereby further reducing the vibration amplitude of the motor housing, improving the vibration reduction and noise reduction effect of the servo motor when used for a long time, and also improving the service life of the first damping spring and the spring damper. The specific contents are as follows: (1) Through the coordinated use of the self-control board and the first piston assembly, when the motor housing vibrates, the self-control board and the first piston assembly will be driven to move downward, and then the gas in the control tube will automatically push the second piston assembly and the control board to move upward. Therefore, when the motor housing vibrates downward, the control board can exert an upward thrust on the motor housing, thereby further reducing the vibration amplitude of the motor housing, improving the shock absorption and noise reduction effect of the servo motor when used for a long time, and at the same time protecting the first shock absorption spring and the spring shock absorber, thereby improving the service life of the first shock absorption spring and the spring shock absorber; Furthermore, by fitting the first rubber pad to the bottom plate, noise generated when the bottom plate contacts the regulating plate can be avoided, thereby further reducing the generation of noise; By storing a certain amount of gas in the control tube and combining it with the vibration of the motor housing, the first piston assembly and the second piston assembly can be automatically driven to perform reciprocating lifting and lowering. Therefore, the automatic control board and the control board can be automatically driven to perform reciprocating lifting and lowering without the use of an additional power source. This not only saves energy, but also reduces production and use costs.

[0025] (2) By using the bidirectional screw and the connecting block, the positions of the four sets of fixed rods can be adjusted at the same time, so that the four sets of fixed rods can be moved to a position where they are in contact with the moving block at the same time, and then the moving block can be fixed, so it is convenient to lock the height position of the bottom plate, which can prevent the entire servo motor from generating large vibrations during transportation; (3) When the self-control plate moves downward, it controls the first rotating roller to apply a downward thrust to the auxiliary lifting plate, so that the auxiliary lifting plate rotates about the center of the support frame, and then the rear side of the auxiliary lifting plate rotates upward to apply an upward lifting force to the control plate, thereby improving the stability of the control plate when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the overall bottom-up structure of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the mounting base of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the control tube of the present invention; Figure 5 It is a schematic diagram of a three-dimensional partial cross-sectional structure of the mounting seat of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the bidirectional screw rod of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the mounting base in the second embodiment of the present invention; Figure 8 This is a schematic diagram of the connection structure between the auxiliary lifting plate and the automatic control plate of the present invention; Fig. 9 It is a schematic diagram of the top view of the auxiliary lifting plate of the present invention.

[0027] In the figure: 1. motor housing; 2. bottom plate; 3. spring shock absorber; 4. mounting seat; 5. auxiliary support plate; 6. moving block; 61. sliding rod; 62. first shock-absorbing spring; 7. bidirectional screw rod; 8. regulating tube; 9. automatic control board; 91. first rotating roller; 10. first piston assembly; 11. first connecting spring; 12. second connecting spring; 13. regulating plate; 131. second rotating roller; 14. first rubber pad; 15. connecting block; 16. fixing rod; 17. auxiliary lifting plate; 171. second rubber pad; 18. supporting frame; 19. second piston assembly. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 9 , the present invention provides the following technical solutions: Embodiment 1: The vibration reduction and noise reduction servo motor in this embodiment can not only further reduce the vibration amplitude of the motor housing 1, but also protect the first vibration reduction spring 62 and the spring shock absorber 3, thereby improving the service life of the first vibration reduction spring 62 and the spring shock absorber 3, thereby improving the vibration reduction and noise reduction effect of the servo motor when used for a long time. For the specific structure, refer to the attached Figure 1-Figure 6 As shown, it includes a motor housing 1 and a base plate 2 installed under the motor housing 1, the bottom surface of the base plate 2 is connected to the mounting seat 4 through four groups of symmetrically arranged spring shock absorbers 3, two groups of regulating tubes 8 are symmetrically installed in the middle position of the upper surface of the mounting seat 4, the front end of the regulating tube 8 is connected to an automatic control board 9, the upper part of the automatic control board 9 is fixedly connected to the base plate 2, the rear end of the regulating tube 8 is connected to a regulating board 13 for reducing the vibration amplitude of the motor housing 1, the upper part of the regulating board 13 is connected to the bottom surface of the base plate 2 through a first rubber pad 14, and auxiliary support plates 5 are installed at the four corners above the mounting seat 4, and the upper end of the auxiliary support plate 5 is connected to the base plate 2.

[0030] The regulating tube 8 is arranged in a "U" shape, and the front end of the regulating tube 8 is fitted and slidably connected with a first piston assembly 10, the bottom surface of the first piston assembly 10 is connected to the first connecting spring 11 inside the front end of the regulating tube 8, and the upper end of the first piston assembly 10 is connected to the automatic control board 9. The rear end of the regulating tube 8 is fitted and slidably connected with a second piston assembly 19, the bottom surface of the second piston assembly 19 is connected to the second connecting spring 12 inside the rear end of the regulating tube 8, and the upper end of the second piston assembly 19 is connected to the regulating board 13. The auxiliary support plate 5 is arranged in an inclined shape, and the bottom surface of the auxiliary support plate 5 is rotatably connected with a moving block 6 A sliding rod 61 is arranged inside the moving block 6, and a first shock-absorbing spring 62 is nested on the outer side of one end of the sliding rod 61. The sliding rod 61 is installed in a groove opened above the mounting seat 4. The lower part of the moving block 6 is arranged in a "7"-shaped structure. A bidirectional screw rod 7 is rotatably connected to the inner part of the mounting seat 4. The left and right ends of the bidirectional screw rod 7 are both threadedly connected to the outer sides of the connecting blocks 15. Fixed rods 16 are fixed on both sides of the front and rear of the connecting block 15. One end of the fixed rod 16 away from the connecting block 15 is fitted with a side surface below the moving block 6. The sum of the heights of the regulating plate 13 and the first rubber pad 14 is greater than the height of the automatic control plate 9.

[0031] First, move the entire servo motor into the working area, and then manually rotate the bidirectional screw rod 7. At this time, the rotation of the bidirectional screw rod 7 will drive the connecting blocks 15 connected by the outer threads at the left and right ends to move outward at the same time. At this time, the connecting blocks 15 drive the fixing rods 16 on the front and rear sides to move outward, so that the fixing rods 16 are separated from the moving blocks 6. Then the mounting seat 4 is installed in the working area by screws, and then the entire servo motor can be used. When the servo motor vibrates, the spring shock absorber 3 can be used for shock absorption. At the same time, when the motor housing 1 and the bottom plate 2 vibrate downward, the bottom plate 2 will apply a downward thrust to the auxiliary support plate 5, so that the auxiliary support plate 5 drives the moving block 6 connected to the bottom end to slide on the outside of the sliding rod 61, and at the same time squeezes the first shock-absorbing spring 62, so that the first shock-absorbing spring 62 can reduce part of the vibration force. At the same time, the bottom plate 2 will apply a downward pressure to the automatic control plate 9 and the first rubber pad 14, at this time the first rubber pad 14 is deformed, and at the same time the automatic control plate 9 drives the first piston assembly 10 to move downward to squeeze the first connecting spring 11, at this time the gas in the control tube 8 automatically pushes the second piston assembly 19 to move upward, at this time the second piston assembly 19 will drive the control plate 13 and the first rubber pad 14 to move upward, so that the control plate 13 applies an upward thrust to the bottom plate 2 and the motor housing 1, thereby further reducing the vibration amplitude of the motor housing 1, and at the same time due to the use of the control plate 13, the vibration amplitude of the motor housing 1 can be further reduced, so the first shock absorbing spring 62 and the spring shock absorber 3 can be protected to a certain extent, thereby improving the service life of the first shock absorbing spring 62 and the spring shock absorber 3, so that the servo motor has a good shock absorption and noise reduction effect after long-term use.

[0032] At the same time, the first rubber pad 14 above the regulating plate 13 is in direct contact with the bottom plate 2, so that the bottom plate 2 and the regulating plate 13 can be prevented from generating large noise, thereby further reducing the noise of the entire servo motor when in use.

[0033] Embodiment 2: The vibration-reducing and noise-reducing servo motor in this embodiment can further improve the stability of the control plate 13 when in use on the basis of the embodiment 1, so that the control plate 13 can stably exert an upward thrust on the bottom plate 2 and the motor housing 1. The specific structure is shown in the attached Figure 7-Figure 9As shown, the upper surface of the mounting seat 4 is connected with an auxiliary lifting plate 17 through a support frame 18, and the auxiliary lifting plate 17 is rotatably connected to the support frame 18. The auxiliary lifting plate 17 is arranged on the upper outer side of the regulating tube 8, and a first rotating roller 91 is connected to the lower front side of the automatic control plate 9, and a second rotating roller 131 is connected to the lower rear side of the regulating plate 13. A second rubber pad 171 is installed on the upper surface of the auxiliary lifting plate 17, and the auxiliary lifting plate 17 and the second rubber pad 171 are both arranged in an "H" shape. The lower parts of the first rotating roller 91 and the second rotating roller 131 are both fitted with the second rubber pad 171. When the automatic control plate 9 drives the first rotating roller 91 to move downward together, the first rotating roller 91 will press the auxiliary lifting plate 17. The auxiliary lifting plate 17 applies a downward thrust to the front side of 17, and the auxiliary lifting plate 17 rotates with the center of the support frame 18 as the center, so that the rear side of the auxiliary lifting plate 17 rotates upward. At this time, the second rubber pad 171 on the rear side of the auxiliary lifting plate 17 contacts the second rotating roller 131. The setting of the second rubber pad 171 can avoid noise when the auxiliary lifting plate 17 contacts the second rotating roller 131. Then the auxiliary lifting plate 17 applies an upward lifting force to the second rotating roller 131 and the regulating plate 13, thereby improving the stability of the regulating plate 13 after rising, so that the regulating plate 13 can stably apply an upward thrust to the bottom plate 2 and the motor housing 1, thereby completing a series of tasks.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to 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 vibration-damping and noise-reducing servo motor, comprising a motor housing (1), and a bottom plate (2) mounted below the motor housing (1), wherein the bottom surface of the bottom plate (2) is connected to a mounting seat (4) via four sets of symmetrically arranged spring shock absorbers (3); Features: Two groups of control tubes (8) are symmetrically mounted at the middle of the upper surface of the mounting seat (4); an automatic control plate (9) is connected to the upper front end of the control tube (8); the upper part of the automatic control plate (9) is fixedly connected to the bottom plate (2); an control plate (13) for reducing the vibration amplitude of the motor housing (1) is connected to the upper rear end of the control tube (8); the upper part of the control plate (13) is connected to the bottom surface of the bottom plate (2) via a first rubber pad (14); auxiliary support plates (5) are mounted at the upper four corners of the mounting seat (4); the upper end of the auxiliary support plate (5) is connected to the bottom plate (2).

2. A vibration-reducing and noise-reducing servo motor according to claim 1, characterized in that: The control tube (8) is arranged in a "U" shape, and a first piston assembly (10) is slidably connected to the interior of the front end of the control tube (8), the bottom surface of the first piston assembly (10) is connected to a first connecting spring (11) inside the front end of the control tube (8), and the upper end of the first piston assembly (10) is connected to the automatic control board (9).

3. The vibration-reducing and noise-reducing servo motor according to claim 1, characterized in that: A second piston assembly (19) is slidably connected to the rear end of the control tube (8); the bottom surface of the second piston assembly (19) is connected to a second connecting spring (12) inside the rear end of the control tube (8); and the upper end of the second piston assembly (19) is connected to the control plate (13).

4. The vibration-reducing and noise-reducing servo motor according to claim 1, characterized in that: The auxiliary support plate (5) is arranged in an inclined shape, and the bottom surface of the auxiliary support plate (5) is rotatably connected to a moving block (6), a sliding rod (61) is arranged inside the moving block (6), and a first shock absorbing spring (62) is nested and connected to the outside of one end of the sliding rod (61), and the sliding rod (61) is installed in a groove opened above the mounting seat (4).

5. The vibration-reducing and noise-reducing servo motor according to claim 4, characterized in that: The lower part of the moving block (6) is arranged in a "7"-shaped structure.

6. The vibration-reducing and noise-reducing servo motor according to claim 4, characterized in that: A bidirectional screw rod (7) is rotatably connected to the interior of the mounting seat (4), and the left and right ends of the bidirectional screw rod (7) are both threadedly connected to connecting blocks (15). Fixed rods (16) are fixed to the front and rear sides of the connecting block (15), and one end of the fixed rod (16) away from the connecting block (15) is arranged to fit a lower side surface of the moving block (6).

7. The vibration-reducing and noise-reducing servo motor according to claim 1, characterized in that: The sum of the heights of the regulating plate (13) and the first rubber pad (14) is greater than the height of the automatic control plate (9).

8. The vibration-reducing and noise-reducing servo motor according to claim 1, characterized in that: The upper surface of the mounting seat (4) is connected to an auxiliary lifting plate (17) via a support frame (18); the auxiliary lifting plate (17) is rotatably connected to the support frame (18); and the auxiliary lifting plate (17) is arranged above and outside the regulating tube (8).

9. The vibration-reducing and noise-reducing servo motor according to claim 8, characterized in that: as stated; A first rotating roller (91) is connected to the lower front side of the automatic control plate (9), and a second rotating roller (131) is connected to the lower rear side of the regulating plate (13).

10. The vibration-reducing and noise-reducing servo motor according to claim 9, characterized in that: A second rubber pad (171) is installed on the upper surface of the auxiliary lifting plate (17), and the auxiliary lifting plate (17) and the second rubber pad (171) are both arranged in an "H" shape; The lower parts of the first rotating roller (91) and the second rotating roller (131) are both arranged in close contact with the second rubber pad (171).

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