Miniaturized ultrasonic vibration motor

Abstract

The utility model discloses a miniaturized ultrasonic vibration motor, including the casing, its inner chamber is equipped with electric motor, upper connecting block, ultrasonic transducer, lower connecting block and amplitude lever from top to bottom in proper order, and electric motor is installed in the inner chamber of casing, and is equipped with the mounting mechanism for connecting on upper connecting block and lower connecting block, through with the linkage type structure that positioning column and control component adopt, both avoid the phenomenon that positioning column loses in the dismounting process because of small size, and also facilitate control component to drive two positioning columns on the same horizontal line to move synchronously to each other or opposite, realize the locking operation to stud, play the effect of preventing loosening, need not control operation to positioning column in turn, help to improve the dismounting efficiency of electric motor, ultrasonic transducer and amplitude lever, and simultaneously utilize control component can increase the stress area of control positioning column, further improve the assembly convenience between electric motor, ultrasonic transducer and amplitude lever.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic motor technology, and in particular to a miniaturized ultrasonic vibration motor. Background Technology

[0002] Ultrasonic motors differ significantly from traditional motors. Regardless of the variety of traditional motors, their principle generally involves converting electromagnetic force into rotational force. In contrast, the rotational force of an ultrasonic motor is generated from the energy of ultrasonic vibrations. Ultrasonic motors are divided into two types: ring-shaped and miniature ultrasonic motors.

[0003] Existing patent document CN214380697U discloses an ultrasonic vibration motor that integrates the housing, ultrasonic transducer, electric motor, and amplitude transformer into a single structure. This significantly reduces the size of the ultrasonic vibration motor, enabling it to be used in the assembly or development of miniaturized ultrasonic products. This expands the application range of the ultrasonic vibration motor, improves its applicability, and meets the production needs of existing miniaturized ultrasonic products. An anti-loosening structure ensures a stable connection between the electric motor and the connecting flange, preventing transmission attenuation due to loosening and ensuring the transmission and operating efficiency of the ultrasonic vibration motor. An anti-loosening structure also ensures a stable connection between the amplitude transformer and the connecting flange, preventing energy attenuation from the ultrasonic generator or electric motor due to loosening and ensuring the transmission efficiency of the drive energy. This guarantees the operating efficiency and performance of the ultrasonic vibration motor. Furthermore, the anti-loosening structure and anti-loosening structure 1 allow for a detachable connection between the ultrasonic generator, electric motor, and amplitude transformer, ensuring the operating efficiency and performance of the ultrasonic vibration motor while facilitating replacement of faulty components and reducing subsequent maintenance costs.

[0004] Although the aforementioned ultrasonic vibration motor can solve the corresponding technical problems, it uses an anti-loosening structure to ensure the connection stability between the electric motor and the connecting flange, and an anti-loosening structure one to ensure the connection stability between the amplitude transformer and the connecting flange. However, the hidden screws of the anti-loosening structure and the first anti-loosening structure are small in size, making it difficult to remove and place the hidden screws during disassembly and assembly, which is not conducive to quick disassembly and assembly, and is also prone to loss. This affects the disassembly and assembly operations of the ultrasonic generator, electric motor and amplitude transformer. Therefore, a miniaturized ultrasonic vibration motor is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a miniaturized ultrasonic vibration motor to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] A miniaturized ultrasonic vibration motor, comprising:

[0008] The housing has an inner cavity in which an electric motor, an upper connecting block, an ultrasonic transducer, a lower connecting block, and an amplitude transformer are arranged sequentially from top to bottom. The electric motor is installed in the inner cavity of the housing, and both the upper and lower connecting blocks are provided with a mounting mechanism for connection.

[0009] The installation mechanism includes screw holes on the top of the upper and lower connecting blocks. A stud is threaded into the inner cavity of each screw hole. The top of one stud is fixedly connected to the rotating shaft of an electric motor, and the top of the other stud passes through the inner cavity of the ultrasonic transducer and is fixedly connected to the bottom of the upper connecting block. Positioning pins are movably connected through the upper and lower connecting blocks. Two symmetrical positioning grooves are formed on the bottom of the surface of each stud. One end of each positioning pin is inserted into the inner cavity of the corresponding positioning groove. Control components are provided on the upper and lower connecting blocks to drive the two positioning grooves on the same horizontal line to move in opposite directions.

[0010] As a preferred technical solution, the control component includes threaded sleeves that are respectively threaded onto the surfaces of the upper connecting block and the lower connecting block, and a linkage component is provided between the threaded sleeves and the adjacent positioning pins.

[0011] As a preferred technical solution, the linkage component is movably connected to a first protrusion on the side of the screw sleeve facing the ultrasonic transducer. A second protrusion is slidably connected to the side of the first protrusion away from the screw sleeve. One side of the second protrusion is fixedly connected to one end of the corresponding positioning post. The sides of the first protrusion and the corresponding second protrusion facing each other are respectively provided with inclined surfaces that contact each other.

[0012] As a preferred technical solution, a limiting member is provided between the first protrusion and the second protrusion;

[0013] The limiting member includes a limiting groove formed on the inclined surface of the second protrusion, a limiting block is slidably connected to the inner cavity of the limiting groove, and one side of the limiting block is fixedly connected to the inclined surface of the first protrusion.

[0014] As a preferred technical solution, the limiting groove and the limiting block are in the shape of a dovetail or an inverted T.

[0015] As a preferred technical solution, a guide ring is fixedly connected to the side of the threaded sleeve facing the first protrusion, and a guide groove adapted to the guide ring is opened on the side of the first protrusion away from the inclined surface, and the inner wall surface of the guide groove is slidably connected to the surface of the guide ring.

[0016] As a preferred technical solution, the opening size of the guide groove is smaller than the cross-sectional diameter of the guide ring.

[0017] As a preferred technical solution, the top end of the amplitude rod is integrally formed on the bottom of the lower connecting block, the bottom end of the amplitude rod extends movably through to the bottom of the housing, and the surface of the amplitude rod is rotatably connected to the housing through a bearing.

[0018] This utility model has at least the following beneficial effects:

[0019] The beneficial effects of this utility model are that by adopting a linkage structure for the positioning post and the control component, it avoids the phenomenon of the positioning post being lost during disassembly and assembly due to its small size, and facilitates the control component to drive the two positioning posts on the same horizontal line to move synchronously towards or away from each other, thereby achieving the locking operation of the stud and playing an anti-loosening role. It eliminates the need to operate the positioning posts sequentially, thereby improving the locking efficiency of the stud and helping to improve the disassembly efficiency of the electric motor, ultrasonic transducer, and amplitude transformer. At the same time, the control component can increase the force-bearing area of ​​the control positioning post, further improving the ease of assembly between the electric motor, ultrasonic transducer, and amplitude transformer. Attached Figure Description

[0020] Figure 1 This is a schematic front sectional view of the structure of the miniaturized ultrasonic vibration motor of this utility model.

[0021] Figure 2 This is a partial three-dimensional structural schematic diagram of the miniaturized ultrasonic vibration motor of this utility model.

[0022] Figure 3 This is a three-dimensional cross-sectional schematic diagram of a partial structure of the miniaturized ultrasonic vibration motor of this utility model.

[0023] Figure 4 This is a three-dimensional cross-sectional view of the first and second protrusions of the miniaturized ultrasonic vibration motor of this utility model.

[0024] In the diagram: 1. Housing; 2. Electric motor; 3. Upper connecting block; 4. Ultrasonic transducer; 5. Lower connecting block; 6. Amplitude bar; 7. Mounting mechanism; 71. Screw hole; 72. Screw; 73. Positioning pin; 74. Positioning groove; 75. Control component; 751. Screw sleeve; 752. Linkage component; 7521. First protrusion; 7522. Second protrusion; 7523. Limiting groove; 7524. Limiting block; 7525. Guide ring; 7526. Guide groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-4 This embodiment provides a miniaturized ultrasonic vibration motor, including: a housing 1, the inner cavity of which, from top to bottom, is provided an electric motor 2, an upper connecting block 3, an ultrasonic transducer 4, a lower connecting block 5, and an amplitude transformer 6. The electric motor 2 is installed in the inner cavity of the housing 1. Both the upper connecting block 3 and the lower connecting block 5 are provided with a mounting mechanism 7 for connection. The electric motor 2 and the upper connecting block 3 are detachably connected through one of the mounting mechanisms 7, and the upper connecting block 3 and the lower connecting block 5 are detachably connected through the other mounting mechanism 7. The mounting mechanism 7 includes screws formed on the top of the upper connecting block 3 and the lower connecting block 5. Hole 71 has a threaded connection to a stud 72 in its inner cavity. The top of one stud 72 is fixedly connected to the rotating shaft of the electric motor 2, and the top of the other stud 72 passes through the inner cavity of the ultrasonic transducer 4 and is fixedly connected to the bottom of the upper connecting block 3. Positioning pins 73 are movably provided on the upper connecting block 3 and the lower connecting block 5 respectively. Two symmetrical positioning grooves 74 are opened on the bottom of the surface of the stud 72. One end of the positioning pin 73 is inserted into the inner cavity of the corresponding positioning groove 74. The upper connecting block 3 and the lower connecting block 5 are respectively provided with control components 75 that drive the two positioning grooves 74 on the same horizontal line to move in opposite directions.

[0027] The control component 75 includes a threaded sleeve 751 that is threaded onto the surfaces of the upper connecting block 3 and the lower connecting block 5 respectively. A linkage component 752 is provided between the threaded sleeve 751 and the adjacent positioning post 73. By rotating the threaded sleeve 751, it can move vertically up and down along the central axis of the electric motor 2 under the action of the thread.

[0028] The linkage component 752 is movably connected to the first protrusion 7521 on the side of the screw sleeve 751 facing the ultrasonic transducer 4. The side of the first protrusion 7521 away from the screw sleeve 751 is slidably connected to the second protrusion 7522. One side of the second protrusion 7522 is fixedly connected to one end of the corresponding positioning post 73. The sides of the first protrusion 7521 and the corresponding second protrusion 7522 facing each other are respectively provided with inclined surfaces that contact each other. The direction of force can be changed by the linkage component 752. When the screw sleeve 751 moves vertically up and down, the positioning post 73 can be moved horizontally left and right by the linkage component 752, thereby realizing the unlocking or locking operation of the screw post 72.

[0029] A limiting member is provided between the first protrusion 7521 and the second protrusion 7522. The limiting member includes a limiting groove 7523 formed on the inclined surface of the second protrusion 7522. A limiting block 7524 is slidably connected to the inner cavity of the limiting groove 7523. One side of the limiting block 7524 is fixedly connected to the inclined surface of the first protrusion 7521. The limiting member can prevent the first protrusion 7521 and the second protrusion 7522 from separating, so as to ensure that the inclined surface of the first protrusion 7521 and the inclined surface of the second protrusion 7522 can always remain in contact.

[0030] The limiting groove 7523 and the limiting block 7524 are in the shape of a dovetail or an inverted T.

[0031] Among them, the threaded sleeve 751 is fixedly connected to the side facing the first protrusion 7521 with a guide ring 7525. The side of the first protrusion 7521 away from the inclined surface is provided with a guide groove 7526 that matches the guide ring 7525. The inner wall surface of the guide groove 7526 is slidably connected to the surface of the guide ring 7525. Through the cooperation of the guide ring 7525 and the guide groove 7526, it is possible to prevent the first protrusion 7521 from rotating synchronously with the threaded sleeve 751, and to ensure that the first protrusion 7521 can move vertically up and down synchronously with the threaded sleeve 751.

[0032] The opening size of the guide groove 7526 is smaller than the cross-sectional diameter of the guide ring 7525, which effectively prevents the guide ring 7525 from slipping out of the inner cavity of the guide groove 7526.

[0033] The top of the amplitude rod 6 is integrally formed at the bottom of the lower connecting block 5, and the bottom end of the amplitude rod 6 extends through to the bottom of the housing 1. The surface of the amplitude rod 6 is rotatably connected to the housing 1 through the bearing.

[0034] The working principle of this utility model is as follows: By rotating the threaded sleeve 751, under the action of the thread, the threaded sleeve 751 moves vertically upward or downward. The threaded sleeve 751 drives the guide ring 7525 to slide in the inner cavity of the guide groove 7526, and drives the first protrusion 7521 to move synchronously. The inclined surface of the first protrusion 7521 pushes the inclined surface of the second protrusion 7522, so that the second protrusion 7522 is subjected to force and moves horizontally along the central axis of the positioning post 73. The second protrusion 7522 drives the limiting groove 7523 and the positioning... The positioning post 73 moves synchronously, and the limiting block 7524 slides in the inner cavity of the limiting groove 7523 until it moves to the maximum extent. Then the positioning post 73 can be moved out of the inner cavity of the positioning groove 74, thereby completing the unlocking operation of the stud 72. At this time, the lower connecting block 5 can be rotated to remove the lower connecting block 5 from the stud 72 at the bottom of the upper connecting block 3. Similarly, the upper connecting block 3 can be removed from the rotating shaft of the electric motor 2. When assembly is required, the above steps can be reversed to complete the assembly operation.

[0035] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A miniaturized ultrasonic vibration motor, characterized in that, include: The housing (1) has an electric motor (2), an upper connecting block (3), an ultrasonic transducer (4), a lower connecting block (5) and an amplitude transformer (6) arranged sequentially from top to bottom in its inner cavity. The electric motor (2) is installed in the inner cavity of the housing (1). The upper connecting block (3) and the lower connecting block (5) are each provided with a mounting mechanism (7) for connection. The installation mechanism (7) includes screw holes (71) on the top of the upper connecting block (3) and the lower connecting block (5). The inner cavity of the screw hole (71) is threaded with a stud (72). The top of one stud (72) is fixedly connected to the rotating shaft of the electric motor (2), and the top of the other stud (72) passes through the inner cavity of the ultrasonic transducer (4) and is fixedly connected to the bottom of the upper connecting block (3). The upper connecting block (3) and the lower connecting block (5) are respectively provided with positioning pins (73). The bottom of the surface of the stud (72) is provided with two symmetrical positioning grooves (74). One end of the positioning pin (73) is inserted into the inner cavity of the corresponding positioning groove (74). The upper connecting block (3) and the lower connecting block (5) are respectively provided with control components (75) that drive the two positioning grooves (74) on the same horizontal line to move in opposite directions.

2. The miniaturized ultrasonic vibration motor according to claim 1, characterized in that: The control component (75) includes a threaded sleeve (751) that is threaded onto the surfaces of the upper connecting block (3) and the lower connecting block (5), respectively, and a linkage component (752) is provided between the threaded sleeve (751) and the adjacent positioning post (73).

3. A miniaturized ultrasonic vibration motor according to claim 2, characterized in that: The linkage component (752) is movably connected to the first protrusion (7521) on the side of the threaded sleeve (751) facing the ultrasonic transducer (4). The side of the first protrusion (7521) away from the threaded sleeve (751) is slidably connected to the second protrusion (7522). One side of the second protrusion (7522) is fixedly connected to one end of the corresponding positioning post (73). The sides of the first protrusion (7521) and the corresponding second protrusion (7522) facing each other are respectively provided with inclined surfaces that contact each other.

4. A miniaturized ultrasonic vibration motor according to claim 3, characterized in that: A limiting member is provided between the first protrusion (7521) and the second protrusion (7522); The limiting member includes a limiting groove (7523) formed on the inclined surface of the second protrusion (7522), and a limiting block (7524) is slidably connected to the inner cavity of the limiting groove (7523). One side of the limiting block (7524) is fixedly connected to the inclined surface of the first protrusion (7521).

5. A miniaturized ultrasonic vibration motor according to claim 4, characterized in that: The limiting groove (7523) and the limiting block (7524) have a dovetail or inverted T-shaped structure.

6. A miniaturized ultrasonic vibration motor according to claim 3, characterized in that: The threaded sleeve (751) is fixedly connected to a guide ring (7525) on the side facing the first protrusion (7521). The first protrusion (7521) has a guide groove (7526) adapted to the guide ring (7525) on the side away from the inclined surface. The inner wall surface of the guide groove (7526) is slidably connected to the surface of the guide ring (7525).

7. A miniaturized ultrasonic vibration motor according to claim 6, characterized in that: The opening size of the guide groove (7526) is smaller than the cross-sectional diameter of the guide ring (7525).

8. A miniaturized ultrasonic vibration motor according to any one of claims 1-7, characterized in that: The top end of the amplitude rod (6) is integrally formed at the bottom of the lower connecting block (5), and the bottom end of the amplitude rod (6) extends movably through to the bottom of the housing (1). The surface of the amplitude rod (6) is rotatably connected to the housing (1) through the penetration point of the bearing.

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