CN214679819U - Hysteresis damping device and damping device applied to rowing machine - Google Patents
Hysteresis damping device and damping device applied to rowing machine Download PDFInfo
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- CN214679819U CN214679819U CN202120780972.2U CN202120780972U CN214679819U CN 214679819 U CN214679819 U CN 214679819U CN 202120780972 U CN202120780972 U CN 202120780972U CN 214679819 U CN214679819 U CN 214679819U
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Abstract
The utility model discloses a hysteresis damping device, including receiving and releasing the wheel, axle bed and the axis body of rotation connection on the axle bed, the axle bed is including the hysteresis zone that is equipped with the magnetic part and the transmission area that is equipped with the wind spring, the axis body is including the first shaft section that is equipped with the magnetic damping wheel and the second shaft section that the cover is equipped with one-way bearing, the first shaft section of axis body is located the hysteresis zone of axle bed so that magnetic damping wheel and magnetic part form hysteresis effect, receive and release the wheel and be the annular, the inner ring that receives and releases the wheel cup joints with the outer lane of one-way bearing mutually, the wind spring is including the first end that is connected to the axle bed and being connected to the second tip that receives and releases the wheel. The scheme takes the hysteresis effect as a main damping force source, has compact structure and difficult abrasion, is particularly suitable for fitness equipment with the characteristics of repeated running such as a rowing machine, a belly-building wheel and the like, can automatically reset when external force is lost by the retractable wheel, and better accords with the motion law of a human body. The utility model also discloses a practical damping device who is applied to the rowing machine.
Description
Technical Field
The utility model relates to a damping device's technical field specifically is to relate to a hysteresis damping device to and be applied to the damping device of rowing machine.
Background
The resistance source of the aerobic exercise fitness equipment in the market at present is mostly designed by taking friction, water resistance, wind resistance and the like as principles. However, such devices are either bulky, have wear problems with moving parts, or have the disadvantage of being difficult to maintain, and are of low utility.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the hysteresis damping device is compact in structure, long in service life and convenient to maintain.
The technical scheme of the utility model is that: the utility model provides a hysteresis damping device, including receiving and releasing wheel, axle bed and the axis body of rotation connection on the axle bed, the axle bed is including the hysteresis zone that is equipped with the magnetic part and the transmission area that is equipped with the coil spring, the axis body is equipped with the second shaft section of one-way bearing including the first shaft section that is equipped with the magnetic damping wheel and cover, the first shaft section of axis body is located the hysteresis zone of axle bed is so that magnetic damping wheel and magnetic part form the hysteresis effect, receive and release the wheel and be the annular, receive and release the inner ring of wheel with the outer lane of one-way bearing cup joints mutually, the coil spring is including being connected to the first end of axle bed with be connected to receive and release the second end of wheel.
When the magnetic damping wheel is used, the shaft seat is kept in a fixed state, when the retractable wheel is positively rotated by external force, the retractable wheel drives the shaft body to rotate through the one-way bearing, and at the moment, the magnetic damping wheel on the shaft body generates damping force due to hysteresis effect; on the other hand, the coil spring is pulled and accumulates elastic potential energy due to the rotation of the retracting wheel, and at this time, a damping force is also generated. When the external force is removed, the elastic potential energy of the coil spring is released, and the winding and unwinding wheel is driven to rotate reversely and reset. Compared with the prior art, the scheme takes the hysteresis effect as a main damping force source, has compact structure, is not easy to wear, has better practicability, is particularly suitable for fitness equipment with the characteristics of repeated operation such as a rowing machine, an exercise wheel and the like, can automatically reset when external force is lost by the retractable wheel, and better accords with the motion law of a human body.
Preferably, the magnetic part is a magnetic conductive ring made of a ferromagnetic material, and the magnetic conductive ring and the magnetic damping wheel are arranged coaxially; magnetic damping wheel includes wheel body and two at least permanent magnetism pieces of setting on the wheel body, the wheel body is located the inboard of magnetic conduction ring, at least one of them the north pole orientation of permanent magnetism piece the magnetic conduction ring, and at least one of them the south pole orientation of permanent magnetism piece the magnetic conduction ring to when the wheel body rotates, will produce stronger hysteresis lag effect between permanent magnetism piece on the wheel body and the magnetic conduction ring, provide great damping force.
Preferably, the permanent magnet pieces are even and distributed on the outer ring of the wheel body along the circumferential direction, and the magnetism of any adjacent permanent magnet piece is opposite to that of one side of the magnetic conductive ring, so that the force value of the damping force is larger and more stable.
Preferably, the transmission area of the shaft seat is provided with an annular protruding portion, the inner ring of the protruding portion is sleeved with a rolling bearing, the inner ring of the rolling bearing is sleeved on the shaft body, and the first end portion of the coil spring is connected with the outer ring wall of the protruding portion, so that the rotation of the shaft body relative to the shaft seat is smoother, the abrasion is reduced, the connection between the coil spring and the shaft seat is tighter, and the overall structure is compact.
Preferably, the axle bed has two and respectively the symmetry set up in receive and release the left side and the right side of wheel, two the transmission district of axle bed sets up relatively, first shaft section is two and is located respectively the left end and the right-hand member of axis body to make the axis body control both ends homoenergetic receive the damping force that the hysteresis lag district of axle bed provided, not only increased the damping force, make the axis body atress more balanced moreover.
Preferably, the diameters of the left side and the right side of the inner ring of the winding and unwinding wheel are increased to form two accommodating grooves, and the second end parts of the coil springs on the two shaft seats are respectively connected to the groove walls of the two corresponding accommodating grooves, so that larger coil springs can be stored in the accommodating grooves, the forward rotation angle of the winding and unwinding wheel is increased, and the structure is more compact.
The utility model also provides a be applied to rowing machine damping device, include as above hysteresis lag damping device, still include the belt, the one end of belt connect in receive and release the outer lane of wheel and the other end and be equipped with the handle to can simulate the law of motion of rowing comparatively accurately through the pulling belt.
Drawings
Fig. 1 is an isometric view of a hysteresis damping device of the present invention;
fig. 2 is an isometric view of a hysteresis damping device of the present invention with the left axle seat hidden;
fig. 3 is a schematic front view of a hysteresis damping device according to the present invention;
FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3;
fig. 5 is a schematic view of a magnetic damping wheel of a hysteresis damping device according to the present invention;
fig. 6 is an isometric view of the damping device of the present invention applied to a rowing machine;
in the drawings: 1-shaft seat; 1.1-magnetic member; 1.2-raised portion; 1.3-rolling bearings; 2-retracting and releasing wheels; 2.1-accommodating groove; 3-a shaft body; 3.1-wheel body; 3.2-permanent magnet pieces; 3.3-one-way bearing; 4-coil spring; 5-a belt.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
First, the hysteresis effect is a phenomenon that when a ferromagnet (magnetic neutral state) is placed in an external magnetic field and magnetized, the magnetic field strength increases from zero to increase the magnetization to a certain value, and at this time, if the magnetic field is gradually decreased, the magnetization does not return to the original changing curve but changes along another curve. In other words, the change of magnetization always lags behind the change of magnetic field strength in accordance with the change of magnetic field strength, and the energy loss due to hysteresis is called hysteresis loss.
Please refer to fig. 1-5, an embodiment of the present invention provides a hysteresis damping device, including winding and unwinding wheel 2, shaft seat 1 and axis body 3 rotatably connected to shaft seat 1, shaft seat 1 includes the hysteresis zone that is equipped with magnetic part 1.1 and the transmission zone that is equipped with coil spring 4, axis body 3 includes the first shaft section that is equipped with the magnetic damping wheel and the second shaft section that is equipped with one-way bearing 3.3, the first shaft section of axis body 3 is located the hysteresis zone of shaft seat 1 so that magnetic damping wheel and magnetic part 1.1 form the hysteresis effect, winding and unwinding wheel 2 is the annular, the inner ring of winding and unwinding wheel 2 cup joints with one-way bearing 3.3's outer lane, coil spring 4 includes the first end that is connected to shaft seat 1 and the second end that is connected to winding and unwinding wheel 2.
When the magnetic damping wheel is used, the shaft seat 1 is kept in a fixed state, when the retractable wheel 2 is positively rotated by external force, on one hand, the retractable wheel 2 drives the shaft body 3 to rotate through the one-way bearing 3.3, and at the moment, the magnetic damping wheel on the shaft body 3 generates damping force due to hysteresis effect (namely, hysteresis loss is overcome); on the other hand, the coil spring 4 is pulled and accumulates elastic potential energy due to the rotation of the retractable wheel 2, and at this time, a damping force is also generated. When the external force is removed, the elastic potential energy of the coil spring 4 is released, and the retractable wheel 2 is driven to rotate reversely and reset. Compared with the prior art, the scheme takes the hysteresis effect as a main damping force source, has compact structure, is not easy to wear, has better practicability, is particularly suitable for fitness equipment with the characteristics of repeated operation such as a rowing machine, an exercise wheel and the like, can automatically reset when external force is lost by the retractable wheel 2, and better accords with the motion law of a human body.
In this embodiment, the magnetic member 1.1 is an annular magnetic conductive ring, the magnetic conductive ring is coaxially disposed with the magnetic damping wheel, and an outer ring of the magnetic conductive ring is connected to the shaft seat 1 for fixing. The magnetic conductive ring is made of ferromagnetic material, preferably iron-cobalt-vanadium alloy, so that the magnetic conductive ring has extremely high saturation magnetic flux density. Of course, the magnetic member 1.1 may have other shapes such as an arc shape or a sheet shape, and this is not limited by this design.
The magnetic damping wheel comprises a wheel body 3.1 and at least two permanent magnet sheets 3.2 arranged on the wheel body 3.1, the wheel body 3.1 is positioned at the inner side of the magnetic conductive ring, the N pole of at least one of the permanent magnet sheets 3.2 faces the magnetic conductive ring, and the S pole of at least one of the permanent magnet sheets faces the magnetic conductive ring, so that when the wheel body 3.1 rotates, a strong magnetic hysteresis effect is generated between the permanent magnet sheets 3.2 on the wheel body 3.1 and the magnetic conductive ring, and a large damping force is provided.
It should be noted that, the mounting positions of the permanent magnet pieces 3.2 and the magnetic conductive ring can be interchanged, for example, the permanent magnet pieces 3.2 can be arranged on the shaft seat 1, and the magnetic conductive ring can be arranged on the wheel body 3.1, which can also generate magnetic damping force, and the design concept of the present invention should also be regarded as the present invention.
As the optimization to the magnetic damping wheel, permanent-magnet pieces 3.2 are even number and distribute in the outer lane of wheel body 3.1 along circumference, and adjacent permanent-magnet piece 3.2 is opposite towards the one end magnetism of magnetic ring to make the power value of damping force bigger, and more stable.
In this embodiment, axle bed 1 has two and respectively the symmetry set up in the left side and the right side of receiving and releasing wheel 2, and the transmission district of two axle beds 1 sets up relatively, and first shaft section on the axis body 3 is two and is located the left end and the right-hand member of axis body 3 respectively to make the damping force that the hysteresis lag district that both ends homoenergetic received axle bed 1 about the axis body 3 provided, not only increased the damping force, make the axis body 3 atress more balanced moreover.
In addition, as the optimization to receiving and releasing wheel 2, the aperture increase on the left side and the right side of the inner ring of receiving and releasing wheel 2 forms two holding tanks 2.1, and the second end of coil spring 4 on two axle beds 1 is connected respectively to the cell walls of two corresponding holding tanks 2.1 to can deposit bigger coil spring 4 in holding tank 2.1, increased the forward rotation angle of receiving and releasing wheel 2 on the one hand, on the other hand also makes the structure more compact.
As shown in fig. 1-6, the utility model also provides a be applied to damping device of rowing machine, including hysteresis damping device as above, still include belt 5, the one end of belt 5 can be dismantled and connect in the outer lane of receiving and releasing wheel 2, and the other end of belt 5 is equipped with the handle that supplies the user to grip, and the user can drive through pulling belt 5 and receive and release wheel 2 rotatory to comparatively accurately simulate the law of motion of rowing.
The present invention has been described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (7)
1. The utility model provides a hysteresis damping device, its characterized in that, connects axis body (3) on axle bed (1) including receiving and releasing wheel (2), axle bed (1) and rotation, axle bed (1) is including the hysteresis lag district that is equipped with magnetic part (1.1) and the transmission area that is equipped with wind spring (4), axis body (3) are including the first shaft section that is equipped with the magnetic damping wheel and the second shaft section that the cover is equipped with one-way bearing (3.3), the first shaft section of axis body (3) is located the hysteresis lag district of axle bed (1) is so that magnetic damping wheel and magnetic part (1.1) form the hysteresis lag, receive and release wheel (2) are the annular, receive and release wheel's (2) inner ring with the outer lane of one-way bearing (3.3) cup joints mutually, wind spring (4) are including being connected to the first end of axle bed (1) and being connected to receive and release wheel's (2) second end.
2. A hysteresis damping device according to claim 1, characterized in that said magnetic member (1.1) is a magnetically conductive ring made of ferromagnetic material, said magnetically conductive ring being arranged coaxially with said magnetic damping wheel; the magnetic damping wheel comprises a wheel body (3.1) and at least two permanent magnet sheets (3.2) arranged on the wheel body (3.1), wherein the wheel body (3.1) is positioned on the inner side of the magnetic conductive ring, the N pole of at least one of the permanent magnet sheets (3.2) faces the magnetic conductive ring, and the S pole of at least one of the permanent magnet sheets (3.2) faces the magnetic conductive ring.
3. A hysteresis damping device according to claim 2, characterised in that an even number of said permanent magnet pieces (3.2) are circumferentially distributed on the outer ring of said wheel body (3.1), and that the sides of any adjacent permanent magnet pieces (3.2) facing said magnetic conductive ring are magnetically opposite.
4. A hysteresis damping device according to any of claims 1-3, characterized in that the transmission area of the shaft seat (1) is provided with an annular protrusion (1.2), the inner ring of the protrusion (1.2) is sleeved with a rolling bearing (1.3), the inner ring of the rolling bearing (1.3) is sleeved on the shaft body (3), and the first end of the coil spring (4) is connected to the outer ring wall of the protrusion (1.2).
5. A hysteresis damping device according to claim 4, characterised in that said shaft seats (1) are two and symmetrically arranged on the left and right sides of said retractable wheel (2), respectively, the transmission areas of said two shaft seats (1) are arranged opposite to each other, and said first shaft sections are two and located on the left and right ends of said shaft body (3), respectively.
6. A hysteresis damping device according to claim 5, characterised in that the diameters of the left and right sides of the inner ring of the winding and unwinding wheel (2) are enlarged to form two receiving slots (2.1), and the second ends of the coil springs (4) on two said axle seats (1) are connected to the walls of the corresponding two said receiving slots (2.1), respectively.
7. Damping device for a rowing machine, characterized in that it comprises a hysteresis damping device according to any of claims 1 to 6, and further comprises a belt (5), one end of the belt (5) being connected to the outer ring of the wheel (2) and the other end being provided with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120780972.2U CN214679819U (en) | 2021-04-13 | 2021-04-13 | Hysteresis damping device and damping device applied to rowing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120780972.2U CN214679819U (en) | 2021-04-13 | 2021-04-13 | Hysteresis damping device and damping device applied to rowing machine |
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| CN214679819U true CN214679819U (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120780972.2U Active CN214679819U (en) | 2021-04-13 | 2021-04-13 | Hysteresis damping device and damping device applied to rowing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112957654A (en) * | 2021-04-13 | 2021-06-15 | 宁波睿特菲体育科技有限公司 | Hysteresis damping device and damping device applied to rowing machine |
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2021
- 2021-04-13 CN CN202120780972.2U patent/CN214679819U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112957654A (en) * | 2021-04-13 | 2021-06-15 | 宁波睿特菲体育科技有限公司 | Hysteresis damping device and damping device applied to rowing machine |
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