阅读说明：本技术 磁滞联轴器 (Hysteresis coupling ) 是由 安瑞桢 于 2020-07-29 设计创作，主要内容包括：本发明提出了一种磁滞联轴器,包括第一套体、套设于第一套体外的第二套体及设于该第一套体与第二套体之间的轴承、永磁铁、磁滞环及摩擦环,所述第一套体包括环板及由该环板的中心孔的周缘向外延伸形成的筒体,所述轴承支撑于筒体与第二套体之间,所述永磁铁、摩擦环及磁滞环套设于筒体外,并夹设于第二套体与环板之间,所述第一套体与第二套体通过永磁铁与磁滞环的吸引力及二者与摩擦环之间的摩擦力传递扭矩。该磁滞联轴器的第一套体与第二套体通过永磁铁与磁滞环的吸引力及二者与摩擦环之间的摩擦力传递扭矩,达到限制扭矩后永磁铁与磁滞环产生相对滑动并以限制扭矩做定扭矩输出,其结构简单。(The invention provides a hysteresis coupling, which comprises a first sleeve body, a second sleeve body sleeved outside the first sleeve body, and a bearing, a permanent magnet, a hysteresis ring and a friction ring which are arranged between the first sleeve body and the second sleeve body, wherein the first sleeve body comprises an annular plate and a cylinder body formed by extending the periphery of a central hole of the annular plate outwards, the bearing is supported between the cylinder body and the second sleeve body, the permanent magnet, the friction ring and the hysteresis ring are sleeved outside the cylinder body and clamped between the second sleeve body and the annular plate, and the torque is transmitted by the first sleeve body and the second sleeve body through the attraction force of the permanent magnet and the hysteresis ring and the friction force between the permanent magnet and the hysteresis ring and the friction ring. The first sleeve body and the second sleeve body of the hysteresis coupler transmit torque through the attraction force of the permanent magnet and the hysteresis loop and the friction force between the permanent magnet and the hysteresis loop and the friction ring, the permanent magnet and the hysteresis loop generate relative sliding after the torque is limited, the torque is limited to be output as fixed torque, and the hysteresis coupler is simple in structure.)

1. A hysteresis coupling characterized by: including the first cover body, the cover locate the outer second cover body of first cover body and locate bearing, permanent magnet, hysteresis loop and the friction ring between this first cover body and the second cover body, the first cover body includes the crown plate and by the outside barrel that extends formation of periphery of the centre bore of this crown plate, the bearing supports between barrel and second cover body, permanent magnet, friction ring and hysteresis loop cover are located outside the barrel to press from both sides and locate between the second cover body and the crown plate, the first cover body passes through the appeal of permanent magnet and hysteresis loop and the frictional force transmission moment of torsion between the two and the friction ring with the second cover body.

2. A hysteresis coupling as defined in claim 1, wherein: the permanent magnet is correspondingly fixed on the second sleeve body, and the hysteresis loop is fixed on the annular plate.

3. A hysteresis coupling as defined in claim 2, wherein: the cylinder body comprises a first ring cylinder, a second ring cylinder and a third ring cylinder, wherein the first ring cylinder extends outwards from the ring plate, the outer diameter of the second ring cylinder is smaller than that of the first ring cylinder, the third ring cylinder extends outwards from the second ring cylinder, the outer diameter of the third ring cylinder is smaller than that of the second ring cylinder, the first ring cylinder, the second ring cylinder and the third ring cylinder are connected in a step shape, the second sleeve body is sleeved on the periphery of the third ring cylinder of the cylinder body and corresponds to the ring plate in the radial direction and keeps an interval, the bearing is supported between the third ring cylinder and the second sleeve body, the permanent magnet and the friction ring are correspondingly sleeved on the periphery of the second ring cylinder, the magnetic hysteresis ring is correspondingly sleeved on the periphery of the first ring cylinder, and the friction ring is clamped between the magnetic hysteresis rings.

4. A hysteresis coupling as claimed in any one of claims 1 to 3, wherein: the permanent magnet is composed of a plurality of fan-shaped blocks and is distributed in a ring shape along the circumferential direction, the magnetization direction of the permanent magnet is parallel to the direction of the central shaft of the second sleeve body, and the magnetization directions of the adjacent fan-shaped blocks are parallel and opposite.

5. A hysteresis coupling as claimed in any one of claims 1 to 3, wherein: the hysteresis loop is made of soft magnetic materials.

6. A hysteresis coupling as claimed in any one of claims 1 to 3, wherein: the friction ring is made of an ultrahigh molecular material.

7. A hysteresis coupling as claimed in any one of claims 1 to 3, wherein: the first sleeve body and the second sleeve body are input or output mutually.

Technical Field

The invention relates to a coupler, in particular to a hysteresis coupler.

Background

In order to decelerate the unpowered moving object and avoid the overlarge impact force in the industrial production, a damper is generally used for blocking the moving object, and the specific deceleration purpose is realized according to different damping characteristics and damping forces. When the moving object does acceleration movement, a driving device is additionally arranged to realize the acceleration and deceleration movement of the object under constant acceleration. The conveying system needs more stop positions, each stop position needs to be provided with an independent damping device and a driving device in order to realize respective acceleration and deceleration, and meanwhile, the damping devices, besides the dampers, also need to be provided with avoidance devices of the damping system, so that objects can be conveyed continuously along the conveying direction, and the whole system becomes complicated and needs to be improved.

Disclosure of Invention

The invention provides a hysteresis coupling, which solves the problems of complex structure and the like in the prior art.

The technical scheme of the invention is realized as follows:

the utility model provides a hysteresis coupling, includes that first cover body, cover locate the outer second cover body of first cover body and locate bearing, permanent magnet, hysteresis loop and the friction ring between this first cover body and the second cover body, first cover body includes the crown plate and by the barrel of the outside extension formation of periphery of the centre bore of this crown plate, the bearing supports between barrel and second cover body, permanent magnet, friction ring and hysteresis loop cover are located outside the barrel to press from both sides and locate between the second cover body and the crown plate, the first cover body passes through the appeal of permanent magnet and hysteresis loop and the frictional force transmission moment of torsion between the two and the friction ring with the second cover body.

Preferably, the permanent magnet is correspondingly fixed on the second sleeve body, and the hysteresis loop is fixed on the annular plate.

Preferably, the cylinder body comprises a first ring cylinder extending outwards from a ring plate, a second ring cylinder extending outwards from the first ring cylinder and having an outer diameter smaller than that of the first ring cylinder, and a third ring cylinder extending outwards from the second ring cylinder and having an outer diameter smaller than that of the second ring cylinder, the first ring cylinder, the second ring cylinder and the third ring cylinder are connected in a step shape, the second sleeve is sleeved on the periphery of the third ring cylinder of the cylinder body and corresponds to the ring plate along the radial direction and keeps a gap, the bearing is supported between the third ring cylinder and the second sleeve, the permanent magnet and the friction ring are correspondingly sleeved on the periphery of the second ring cylinder, the hysteresis ring is correspondingly sleeved on the periphery of the first ring cylinder, and the friction ring is clamped between the permanent magnet and the hysteresis ring.

Preferably, the permanent magnet is composed of a plurality of fan-shaped blocks and is distributed in a ring shape along the circumferential direction, the magnetization direction of the permanent magnet is parallel to the direction of the central shaft of the second sleeve body, and the magnetization directions of the adjacent fan-shaped blocks are parallel and opposite.

Preferably, the hysteresis loop is made of a soft magnetic material.

Preferably, the friction ring is made of an ultra-high molecular material.

Preferably, the first sleeve and the second sleeve are input or output with each other.

The invention has the beneficial effects that:

the first sleeve body and the second sleeve body of the hysteresis coupling transmit torque through the attraction force between the permanent magnet and the hysteresis loop and the friction ring, so that the permanent magnet and the hysteresis loop generate relative sliding after the torque is limited and the torque is limited to be output as fixed torque, and the hysteresis coupling is simple in structure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of the construction of a hysteresis coupling according to the invention.

In the figure:

10. a first sleeve body; 20. a second sleeve body; 30. a bearing; 40. a permanent magnet; 50. a magnetic hysteresis loop; 60. a friction ring; 11. a ring plate; 12. a barrel; 13. a first annulus; 15. a second annulus; 16. and a third ring cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, the hysteresis coupling includes a first sleeve 10, a second sleeve sleeved outside the first sleeve 10, and a bearing 30, a permanent magnet 40, a hysteresis ring 50, and a friction ring 60 disposed between the first sleeve 10 and the second sleeve 20.

The first sleeve 10 includes a ring plate 11 and a cylinder 12 formed by extending outward from the periphery of the central hole of the ring plate 11. In this embodiment, the cylinder 12 includes a first ring 13 extending from the ring plate 11, a second ring 15 extending from the first ring 13 and having an outer diameter smaller than that of the first ring 13, and a third ring 16 extending from the second ring 15 and having an outer diameter smaller than that of the second ring 13, wherein the first ring 13, the second ring 15, and the third ring 16 are connected in a step shape.

The second sleeve 20 is sleeved on the outer periphery of the third ring 16 of the barrel 12, and radially corresponds to the ring plate 11 and keeps a gap. The bearing 30 is supported between the third ring 16 and the second sleeve 20 of the barrel 12, and abuts against a step between the second ring 15 and the third ring 16. The permanent magnet 40, the friction ring 60 and the hysteresis ring 50 are sequentially and mutually abutted in the interval between the second sleeve 20 and the ring plate 11 of the first sleeve 10. In this embodiment, the permanent magnet 50 and the friction ring 60 are correspondingly sleeved on the periphery of the second ring barrel 15, and the hysteresis ring 50 is correspondingly sleeved on the periphery of the first ring barrel 13. The permanent magnet 40 is fixed to the second sleeve 20 with a gap from the second ring 15. The permanent magnet 40 is composed of a plurality of fan-shaped blocks and is distributed in a ring shape along the circumferential direction. The magnetization direction of the permanent magnet 40 is parallel to the direction of the central axis of the second sleeve 20, and the magnetization directions of the adjacent fan-shaped blocks are parallel and opposite. The hysteresis ring 50 is fixed to the ring plate and abuts against the first ring cylinder 13. The hysteresis loop 50 is made of a soft magnetic material having a low coercive force. The friction ring 60 is made of an ultra-high molecular material, and is sandwiched between the permanent magnet 40 and the hysteresis ring 50. The hysteresis gap between the permanent magnet 40 and the hysteresis ring 50 is adjusted by setting the thickness of the friction ring 60, thereby achieving the purpose of adjusting and limiting the torque.

When the magnetic hysteresis device is used, the torque is transmitted by the first sleeve 10 and the second sleeve 20 through the attraction force between the permanent magnet 40 and the hysteresis loop 50 and the friction force between the permanent magnet and the hysteresis loop 60, the permanent magnet 40 and the hysteresis loop 50 slide relatively after the torque is limited, and the torque is output in a fixed torque mode through the limited torque, and the adjustment of the limited torque can be realized through the material and the magnetizing strength of the permanent magnet, the material and the size of the hysteresis loop 50, the gap between the permanent magnet 40 and the hysteresis loop 50 and other factors. In specific implementation, the first sleeve 10 and the second sleeve 20 can be input or output to each other, and the permanent magnet 40 and the hysteresis loop 50 can be arranged in an interchangeable position.

When the magnetic hysteresis coupler is applied specifically, a shaft body is connected in the first sleeve body 10 of the magnetic hysteresis coupler, the second sleeve body 20 is connected with a chain wheel, the shaft body is driven by the magnetic hysteresis coupler through a motor drive chain wheel, and conveyed objects on the shaft body can be driven by constant driving force. When the motor of the driving chain wheel is braked, the chain wheel is suddenly stopped, and the hysteresis coupling outputs the rated torque to the shaft body, so that the conveyed object is decelerated to stop by the rated driving force. The hysteresis coupling can realize the transmission of constant torque, namely the torque output can be provided by the rotation of the first sleeve body 10, and the torque can be provided as the braking force by the brake of the first sleeve body 10.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.