CN220248797U

CN220248797U - Driven rotating shaft with magnetic damping

Info

Publication number: CN220248797U
Application number: CN202321971234.1U
Authority: CN
Inventors: 贾新星
Original assignee: Qingdao Jiuli Material Technology Co ltd
Current assignee: Qingdao Jiuli Material Technology Co ltd
Priority date: 2023-07-26
Filing date: 2023-07-26
Publication date: 2023-12-26
Anticipated expiration: 2033-07-26

Abstract

The application discloses driven rotating shaft with magnetic damping relates to mechanical structure technical field, including a plurality of ferromagnetic metal piece, guy wire wheel section of thick bamboo and carousel, both establish into integrated structure through the connecting rod, the stay cord has been laid in the winding on the guy wire wheel section of thick bamboo, a plurality of magnetic pole piece has been laid along its circumference equidistance to the carousel lateral part, the stay cord of pull makes the carousel that has the magnetic pole piece rotate, each ferromagnetic metal piece evenly lays along the circumference equidistance of carousel, and be equipped with the installation clearance between ferromagnetic metal piece and the magnetic pole piece, the carousel rotates the in-process, the magnetic pole piece is once near ferromagnetic metal piece, then produce a magnetic damping suction, the technical advantage of this application is: the damping effect can be achieved by arranging the magnetic pole block and the ferromagnetic metal block in the same vertical plane and by utilizing tangential suction force, and the damping effect can be achieved by arranging the magnetic pole block and the ferromagnetic metal block in the same axial direction and utilizing the rotation suction force of the side parts of the magnetic pole block and the ferromagnetic metal block.

Description

Driven rotating shaft with magnetic damping

Technical Field

The application relates to the technical field of mechanical structures, in particular to a driven rotating shaft with magnetic damping.

Background

Pull cords are widely used in several fields, such as on many fitness equipment, e.g. sitting rowing machines, training equipment, etc., where the user can exercise muscles and exercise the whole body by pulling the cord; also, a pull rope door and window, in some occasions, such as parking lots, shops, warehouses and the like, the pull rope is used for controlling the opening and closing of the door and window, and the door and window can be conveniently opened or closed by pulling the rope; in still other toys, pull cords are used to simulate specific actions or trigger specific effects, for example pulling the cord may initiate rotation of the aircraft, or pulling the engine sound of an automobile model; pull cords are also commonly used in hanging devices, such as hammocks, swings, and the like, where the user can adjust the height or amplitude of the suspended object by tightening or loosening the cord. In fact, the pull cord has various applications in various fields, such as fishing poles, dog ropes, stage devices, agricultural machinery, sports equipment, etc., and the use of the pull cord requires attention to safety and proper operation to ensure proper operation and prevent accidents.

The existing pull rope mechanism does not have a buffering damping structure, the pull rope can be subjected to impact force, for example, when an object suddenly stops or changes direction, if no buffering measures are provided, the impact force can cause damage or destruction of mechanical parts; the stay cord may generate vibration and vibration in the transmission process, which may damage related equipment and parts, and the stay cord with high speed or large force may have a certain safety risk; how to make the rope motion smoother and more stable, reduce the sudden acceleration and deceleration of the rope, and become the urgent problem to be solved by the person skilled in the art.

Disclosure of Invention

The device provides a driven rotating shaft with magnetic damping, and the specific implementation mode is as follows:

a driven shaft with magnetic damping, comprising:

the wire pulling wheel cylinder and the rotary table are arranged into an integrated structure through a connecting rod, pull ropes are wound on the wire pulling wheel cylinder, a plurality of magnetic pole blocks are equidistantly arranged on the side part of the rotary table along the circumferential direction of the rotary table, and the rotary table with the magnetic pole blocks rotates by pulling the pull ropes;

and in the rotating process of the turntable, each magnetic pole block is close to the corresponding ferromagnetic metal block once, so that magnetic damping attraction force is generated once.

Based on the technical scheme, in order to improve the stability of the pull rope when the pull rope is pulled out, a mode of point-touch induction in the circumferential direction of the ferromagnetic metal block and the magnetic pole block is adopted, and magnetic damping is intermittently provided for the pull rope at equal intervals.

Still include the mounting bracket that comprises pedestal and the hollow piece of locating the pedestal top, the connecting rod rotates and connects in hollow piece, and its both ends all run through in hollow piece, and rotate the department of meeting and be equipped with the bearing, and hollow piece is worn out one side that is close to the carousel by the connecting rod in the position and is equipped with first installation section of thick bamboo, and the diameter of first installation section of thick bamboo is greater than the diameter of carousel.

The hollow block is internally provided with a fixed shaft which is in parallel relation with the connecting rod, and a coil spring for automatically resetting the wire pulling wheel cylinder is wound between the peripheral surfaces of the fixed shaft and the connecting rod.

The positional relationship between the pole pieces and the ferromagnetic metal pieces can be divided into two, respectively:

firstly, the magnetic pole block and the ferromagnetic metal block are positioned in the same vertical plane, a limit mounting rod for positioning the corner position of the ferromagnetic metal block is arranged in the first mounting cylinder, the ferromagnetic metal block is inserted into the limit mounting rod, a T-shaped clamping groove is formed in the side part of the turntable along the direction parallel to the axial direction, the magnetic pole block is inserted into the T-shaped clamping groove, a limit plate matched with the T-shaped clamping groove is arranged at the bottom of the magnetic pole block, and the magnetic surface of the limit plate faces the direction of the ferromagnetic metal block.

The circular sealing plate is clamped at the outer end part of the first mounting cylinder, a first guide hole seat is arranged on the side part of the circular sealing plate, a thread seat is arranged on the side part of the first mounting cylinder, and a bolt penetrates through the first guide hole seat and is connected with the thread seat in a threaded manner.

Based on the above technical solution, the ferromagnetic metal block may be provided in a square, circular or any other irregular shape, preferably a square sheet-like structure.

The second magnetic pole block and the ferromagnetic metal block are not located in the same vertical plane, the circumferential structures formed by the magnetic pole block and the ferromagnetic metal block are concentric and designed to be the same in diameter, the second magnetic pole block and the ferromagnetic metal block also comprise a second mounting cylinder which is clamped at the outer end part of the first mounting cylinder, the second mounting cylinder is clamped on the ferromagnetic metal block through a limiting mounting rod, the limiting mounting rod is of a hollow structure, and the outer circumferential surface of the ferromagnetic metal block is in an exposed state relative to the limiting mounting rod.

T-shaped clamping grooves are formed in the periphery of the turntable along the radial direction, the magnetic pole blocks are inserted into the T-shaped clamping grooves, limiting plates on the back of the magnetic pole blocks are connected to the T-shaped clamping grooves through screws, and magnetic surfaces of the magnetic pole blocks face to one side of the ferromagnetic metal block.

The side part of the second installation cylinder is provided with a second guide hole seat, the side part of the first installation cylinder is provided with a thread seat, and a bolt penetrates through the second guide hole seat and is connected with the thread seat in a threaded manner.

Based on the technical scheme, the connection mode of the limiting plate and the T-shaped clamping groove is not limited to the screw, and the conventional connection modes such as a buckle and a bolt can be selected, so that the magnetic pole blocks are prevented from being thrown out in the rotating process of the turntable.

In summary, the present application includes the following beneficial technical effects:

1. according to the utility model, by arranging the coil spring, the stay wire wheel cylinder can automatically reset after corresponding rotation, and the stay wire can be stably pulled out and retracted under the combination of the magnetic pole block and the ferromagnetic metal block;

2. the utility model can realize damping effect by utilizing tangential suction force by arranging the magnetic pole block and the ferromagnetic metal block in the same vertical plane;

3. the utility model has simple structure, and can realize damping effect by arranging the magnetic pole block and the ferromagnetic metal block in the same axial direction and utilizing the rotation suction force of the side parts of the magnetic pole block and the ferromagnetic metal block.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the structure of the present utility model;

FIG. 3 is a schematic view of the structure of FIG. 1 with the mounting bracket removed in accordance with the present utility model;

FIG. 4 is a schematic view of the circular closure plate of FIG. 1 with the circular closure plate removed;

FIG. 5 is an exploded view of the portion of the structure of FIG. 4 of the present utility model;

FIG. 6 is a schematic view of the structure of the variant of FIG. 4 after application in accordance with the present utility model;

FIG. 7 is an axial exploded view of the portion of the structure of FIG. 6 in accordance with the present utility model;

fig. 8 is a schematic view of a radial explosion of a portion of the structure of fig. 6 in accordance with the present utility model.

Reference numerals illustrate:

1. the magnetic wire drawing device comprises a mounting rack, 2, a wire drawing wheel cylinder, 3, a drawing rope, 4, bolts, 5, a rotary table, 6, coil springs, 7, connecting rods, 8, magnetic pole blocks, 9, ferromagnetic metal blocks, 10, a limit mounting rod, 101, a hollow block, 102, a seat body, 103, a first mounting cylinder, 104, a round sealing plate, 105, a fixed shaft, 106, a second mounting cylinder, 1031, a thread seat, 1041, a first guide hole seat, 1061, a second guide hole seat, 501, a T-shaped clamping groove, 801 and a magnetic surface.

Detailed Description

The following describes specific embodiments of the utility model with reference to the drawings and examples:

it should be noted that the structures, proportions, sizes, etc. shown in the drawings are merely for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the utility model, which is defined by the appended claims.

Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.

The present application is described in further detail below in conjunction with figures 1-7.

The embodiment of the application discloses a driven rotating shaft with magnetic damping.

Example 1

Referring to fig. 1 to 3, this embodiment discloses a driven rotating shaft with magnetic damping, including mounting bracket 1, five ferromagnetic metal pieces 9, guy wire wheel section of thick bamboo 2 and carousel 5, both establish into an organic whole form structure through connecting rod 7, guy wire 3 has been laid to the winding on the guy wire wheel section of thick bamboo 2, five magnetic pole pieces 8 have been laid to carousel 5 lateral part equidistance along its circumference, each ferromagnetic metal piece 9 evenly lays along the circumference equidistance of carousel 5, and be equipped with the installation clearance between ferromagnetic metal piece 9 and the magnetic pole piece 8, mounting bracket 1 includes pedestal 102 and locates hollow piece 101 above pedestal 102 in this structure, connecting rod 7 rotates and connects in hollow piece 101, and both ends all run through in hollow piece 101, and the rotation junction is equipped with the bearing, hollow piece 101 is by connecting rod 7 one side near carousel 5 in the position of wearing out, and the diameter of first mounting cylinder 103 is greater than the diameter of carousel 5.

The hollow block 101 is internally provided with a fixed shaft 105, the fixed shaft 105 is in parallel relation with the connecting rod 7, a coil spring 6 for automatically resetting the wire pulling wheel cylinder 2 is wound between the peripheral surfaces of the fixed shaft 105 and the connecting rod, and a handle convenient for screwing can be arranged on the side part of the wire pulling wheel cylinder 2 in the structure.

The specific implementation process is as follows: manually rotating the wire pulling wheel cylinder 2 or pulling the pull rope 3 to synchronously rotate the wire pulling wheel cylinder 2 and the rotary table 5 relative to the mounting frame 1; during the process, the rotary table 5 generates rotation damping under the intermittent suction action of the magnetic pole blocks 8 and the ferromagnetic metal blocks 9, so that the pulling-out process of the pull rope 3 tends to be smooth; when the external acting force on the stay wire wheel cylinder 2 is removed, the stay wire wheel cylinder 2 and the turntable 5 drive the stay wire 3 to automatically reset under the action of the coil spring 6.

Example 2

Referring to fig. 4 to 5, and based on embodiment 1, this embodiment further provides a driven rotating shaft with magnetic damping, the magnetic pole block 8 and the ferromagnetic metal block 9 are located in the same vertical plane, a limit mounting rod 10 for locating the corner position of the ferromagnetic metal block 9 is disposed in the first mounting cylinder 103, the ferromagnetic metal block 9 is inserted into the limit mounting rod 10, and in this structure, the respective circular ring structures of the magnetic pole block 8 and the ferromagnetic metal block 9 are concentric with the vertical plane.

Still include circular shrouding 104, T shape draw-in groove 501 has been seted up along being parallel to the axial to carousel 5 lateral part, magnetic pole piece 8 inserts in T shape draw-in groove 501, and magnetic pole piece 8 bottom is equipped with the limiting plate that agrees with T shape draw-in groove 501, its magnetic surface 801 face in ferromagnetic metal piece 9 direction, the outer tip of first installation section of thick bamboo 103 is located to circular shrouding 104 card in this structure, circular shrouding 104 lateral part is equipped with first guide hole seat 1041, first installation section of thick bamboo 103 lateral part is equipped with screw thread seat 1031, bolt 4 passes first guide hole seat 1041 and the silk is connected in screw thread seat 1031.

Example 3

Referring to fig. 6 to 8, based on embodiment 1, this embodiment further provides a driven rotating shaft with magnetic damping, the magnetic pole block 8 and the ferromagnetic metal block 9 are not located in the same vertical plane, and the circumferential structures formed by the two are designed in a concentric and same diameter shape, and in this structure, the respective circular ring structures of the magnetic pole block 8 and the ferromagnetic metal block 9 are coaxial and have the same diameter.

The magnetic pole piece is characterized by further comprising a second mounting barrel 106 clamped at the outer end part of the first mounting barrel 103, the second mounting barrel 106 is clamped in the ferromagnetic metal block 9 through a limiting mounting rod 10, the limiting mounting rod 10 is of a hollow structure, the outer peripheral surface of the ferromagnetic metal block 9 is exposed relative to the limiting mounting rod 10, a T-shaped clamping groove 501 is formed in the periphery of the turntable 5 in the radial direction in the structure, the magnetic pole piece 8 is inserted into the T-shaped clamping groove 501, a limiting plate at the back of the magnetic pole piece 8 is connected to the T-shaped clamping groove 501 through a screw, and the magnetic surface 801 of the magnetic pole piece 8 faces one side of the ferromagnetic metal block 9.

The second guide hole seat 1061 is provided at a side portion of the second mounting cylinder 106, the screw seat 1031 is provided at a side portion of the first mounting cylinder 103, and the bolt 4 passes through the second guide hole seat 1061 and is screwed to the screw seat 1031.

Many other changes and modifications may be made without departing from the spirit and scope of the utility model. It is to be understood that the utility model is not to be limited to the specific embodiments, but only by the scope of the appended claims.

Claims

1. A driven shaft with magnetic damping comprising:

the wire pulling wheel cylinder (2) and the rotary table (5) are arranged into an integrated structure through the connecting rod (7), the wire pulling wheel cylinder (2) is wound with the pull wires (3), the side part of the rotary table (5) is provided with a plurality of magnetic pole blocks (8) along the circumferential direction at equal intervals, and the pull wires (3) are pulled to enable the rotary table (5) with the magnetic pole blocks (8) to rotate;

the magnetic pole pieces (8) are close to the ferromagnetic metal pieces (9) once in the rotating process of the turntable (5), and then magnetic damping suction force is generated once.

2. The driven rotating shaft with magnetic damping according to claim 1, further comprising a mounting frame (1) composed of a base body (102) and a hollow block (101) arranged above the base body (102), wherein the connecting rod (7) is rotatably connected with the hollow block (101), both ends of the connecting rod penetrate through the hollow block (101), and a bearing is arranged at the rotation joint;

the hollow block (101) is provided with a first mounting cylinder (103) at one side of the part, which is close to the rotary table (5), of the penetrating part of the connecting rod (7), and the diameter of the first mounting cylinder (103) is larger than that of the rotary table (5).

3. A driven rotating shaft with magnetic damping according to claim 2, characterized in that a fixed shaft (105) is arranged in the hollow block (101), the fixed shaft (105) and the connecting rod (7) are in parallel relation, and a coil spring (6) for automatically resetting the wire drawing drum (2) is wound between the peripheral surfaces of the fixed shaft and the connecting rod.

4. A driven spindle with magnetic damping according to claim 2, characterized in that the pole piece (8) and the ferromagnetic metal piece (9) are in the same vertical plane, a limit mounting rod (10) for positioning the corner position of the ferromagnetic metal piece (9) is arranged in the first mounting cylinder (103), and the ferromagnetic metal piece (9) is inserted into the limit mounting rod (10);

t-shaped clamping grooves (501) are formed in the side portions of the rotary disc (5) in parallel to the axial direction, the magnetic pole blocks (8) are inserted into the T-shaped clamping grooves (501), limiting plates matched with the T-shaped clamping grooves (501) are arranged at the bottoms of the magnetic pole blocks (8), and the magnetic surfaces (801) face the directions of the ferromagnetic metal blocks (9).

5. The driven rotating shaft with magnetic damping according to claim 4, further comprising a circular sealing plate (104), wherein the circular sealing plate (104) is clamped at the outer end of the first mounting cylinder (103);

the circular shrouding (104) lateral part is equipped with first guide hole seat (1041), first mounting cylinder (103) lateral part is equipped with screw thread seat (1031), bolt (4) pass first guide hole seat (1041) and connect in screw thread seat (1031).

6. A driven rotating shaft with magnetic damping according to claim 2, characterized in that the magnetic pole block (8) and the ferromagnetic metal block (9) are not in the same vertical plane, and the circumferential structures formed by the two are designed in a concentric and same diameter shape;

the device is characterized by further comprising a second mounting cylinder (106) clamped at the outer end part of the first mounting cylinder (103), wherein the second mounting cylinder (106) is clamped to the ferromagnetic metal block (9) through a limiting mounting rod (10), the limiting mounting rod (10) is of a hollow structure, and the outer peripheral surface of the ferromagnetic metal block (9) is exposed relative to the limiting mounting rod (10).

7. The driven rotating shaft with magnetic damping according to claim 6, characterized in that a T-shaped clamping groove (501) is formed in the periphery of the rotating disc (5) in the radial direction, the magnetic pole block (8) is inserted into the T-shaped clamping groove (501), a limiting plate on the back of the magnetic pole block (8) is connected to the T-shaped clamping groove (501) through a screw, and a magnetic surface (801) of the magnetic pole block (8) faces to one side of the ferromagnetic metal block (9).

8. The driven rotating shaft with magnetic damping according to claim 7, wherein a second guide hole seat (1061) is provided at a side portion of the second mounting cylinder (106), a screw seat (1031) is provided at a side portion of the first mounting cylinder (103), and a bolt (4) passes through the second guide hole seat (1061) and is screwed to the screw seat (1031).