TWM503241U - Linear power generation magnetic control damper - Google Patents

Description

Linear electromagnetic control damper

The utility model relates to a damper, in particular to a non-hydraulic damper which converts a linear displacement of a transmission shaft into a rotary motion and drives the generator set to obtain a magnetic resistance.

Press, in indoor sports or rehabilitation equipment, most reciprocating actuators must be equipped with load devices or damping devices to allow the operator's muscles to achieve robust or rejuvenate effects by overcoming the load; for example: rowing machines, muscle training FIG. 1A shows a reciprocating sports equipment 10 which is provided with a rocker 12 for swinging back and forth on the body 11, and a damping device 13 is connected between the rocker 12 and the seat body 11, due to Indoor sports equipment is limited by space, so its damper 13 is mostly a hydraulic cylinder as shown in Fig. 1B.

Further, the configuration of the hydraulic cylinder of this type generally includes: a piston 132 is disposed in the cylinder 131, a piston 133 is defined in the piston 132, and a piston rod 134 is disposed at one end, and the cylinder 131 is filled with a predetermined amount of hydraulic oil. 135. When the piston rod 134 is axially displaced by the axial force and is linearly displaced in the cylinder 131, the hydraulic oil 135 is circulated by the passage 133 in the piston 132 to generate a damping effect.

However, it is checked that the hydraulic damper device 13 used in the prior art, the piston rod 134 needs to be reciprocated, and the friction between the oil seal 136 and the oil seal 136 is frequent, so that there is a problem of easy oil leakage and the damping function is affected, and the oil leakage will cause fouling equipment and the ground. Missing. Furthermore, when the hydraulic oil is used for a period of time, its viscosity changes and is susceptible to high temperature, resulting in unstable damping. Moreover, the hydraulic oil should reciprocate from the channel 133 of the piston 132, and the reaction speed of the piston rod 134 from "stretching" to "shrinking" or "contracting" to "stretching" can not be made. Or rehabilitation equipment to achieve full exercise efficiency.

The reason is that the main purpose of this creation is to provide a non-hydraulic damper to solve the lack of oil leakage in hydraulic cylinders in the prior art.

A further object of the present invention is to ensure that the non-hydraulic dampers provided are quickly reacted and always maintain a balanced damping effect, so that the sports equipment has the function of enhancing functions.

In order to achieve the above object, the technical means adopted by the present invention comprises: an outer cylinder having a first through hole and a second through hole at two ends thereof, and a first axial direction is formed between the first and second through holes a transmission shaft having an inner end and an outer end, the outer end protruding from the outside of the first through hole, and having a first pivoting portion, the inner end being displaceable in the outer cylinder, The drive shaft has a hollow section to form a second axial passage, and the transmission shaft forms a third through hole communicating with the second axial passage relative to the inner end of the first pivotal portion; a screw sleeve, a threaded portion disposed in the third through hole and linearly displaced from the transmission shaft; a screw having a threaded portion that can be screwed with the threaded sleeve, and a shaft protruding from the outside of the transmission shaft Rod segment.

a transmission case having a transmission case bottom case and a transmission case casing, the combination thereof is configured to form an accommodation space, the outer side of the transmission case bottom case is provided with a second pivoting portion, and the transmission case casing is provided with a first a second shaft hole, and the outer side surface is provided with a flange, the flange is for inserting the second through hole of the outer tube, and the flange is provided with a first shaft hole for mounting a first bearing, The shaft segment of the screw penetrates the first bearing and penetrates into the accommodating space to make the screw rotate.

a generator set having a rotating shaft, a stator, and a rotor, the stator is provided with a positioning portion and a coil assembly, the shaft seat of the positioning portion is disposed in the second shaft hole and the coil assembly is solid a second bearing is disposed in the outer periphery of the casing of the transmission case, the shaft is inserted through the second bearing and penetrates into the accommodating space, so that the rotating shaft is in a rotatable state, and the rotor has a flywheel, and a magnet fixed to an inner edge of the flywheel, the flywheel sleeve is sleeved on an outer edge of the rotating shaft, and the magnet is rotatable around the stator coil assembly to form a motor system; a transmission mechanism An active member and a passive member coupled thereto are disposed in the accommodating space of the transmission box, and the active member is sleeved on the outer edge of the shaft portion of the screw to be driven to rotate by the screw. The passive member is sleeved on the outer edge of the rotating shaft, so that the rotating shaft can be driven to rotate by the passive member.

Thereby, when the first pivoting portion and the second pivoting portion are subjected to an axial force, the driving shaft moves linearly in the first axial passage, so that the screw sleeve drives the screw to rotate, and The transmission mechanism drives the rotating shaft to rotate, so that the rotor rotates in a circular motion, and the electromagnetic load formed by the magnet and the coil assembly further generates a torsion force as a buffer and damping of the displacement displacement movement of the transmission.

According to the above feature, in an embodiment, the flywheel of the generator set is sleeved on the outer edge of the rotating shaft by a one-way rotating member, so that the magnet can only rotate around the stator coil group in one direction.

According to the above feature, in an embodiment, the active part of the transmission mechanism is a first pulley, the passive part is a second pulley, and the belts are connected by a belt; further, the transmission mechanism is further The utility model comprises an idler wheel set pivoted in the accommodating space for adjusting the tension of the belt.

According to the above feature, in an embodiment, the generator set further includes a casing disposed on an outer edge of the stator and the rotor, and an end cover is disposed at an outer end of the outer casing, and the end cover is centrally mounted. A third bearing is disposed to allow the rotating shaft to rotate through the third bearing.

According to the above feature, in an embodiment, the first through hole is formed by a first sleeve nested in the outer port of the outer tube, and the inner ring surface of the first sleeve and the outer diameter of the transmission shaft A bushing is provided.

According to the above feature, in an embodiment, the first pivoting portion is formed by an oil-impregnated bearing or a circular tube extending perpendicularly from the outer end of the transmission shaft; further, the outer side of the transmission case is provided with a lug The second pivoting portion is formed by an oil bearing or a circular tube extending through the lug in a vertical direction.

According to the above feature, in an embodiment, the screw sleeve is set to a small length and fixed at a position of the third through hole of the transmission shaft; or the screw sleeve may be integrally formed with the transmission shaft and disposed at the The inner edge surface of the third through hole.

With the above technical features, the creation converts the circumferential rotation motion of the magnet by the linear displacement motion of the drive shaft. The electromagnetic load formed by the magnet and the coil group generates the torque, and the magnetic resistance replaces the traditional hydraulic oil, which effectively solves the problem of leakage. The lack of oil. In addition, the use of the spiral characteristics to improve the lead, so that the drive shaft, whether it is "stretching" or "shrinking" stroke, can quickly drive the generator set to form a magnetic resistance and always maintain a balanced damping effect, so that the sports equipment has a function Improve the utility.

First, as shown in FIG. 2 to FIG. 4 , a possible embodiment of the present invention includes: an outer cylinder 20 having a first through hole 21 and a second through hole 22 at two ends thereof, the first through hole A first axial passage 23 is formed between the 21 and the second through hole 22; a transmission shaft 30 having an inner end 31 and an outer end 32, the inner end 31 being displaceable in the outer cylinder 20, The outer end 32 protrudes from the outside of the first through hole 21 and is provided with a first pivoting portion 321 . In the embodiment, the first pivoting portion 321 extends from the vertical direction to the outside of the transmission shaft 30 . The oil bearing or the round pipe of the end 32 is formed; a first bushing 21A is nested in the port of the first through hole 21 of the outer cylinder 20, and the inner ring surface of the first bushing 21A and the outer diameter of the driving shaft 30 A bushing 35 is provided to ensure a smooth and smooth effect when the transmission shaft 30 is axially displaced relative to the outer cylinder 20; further, the transmission shaft 30 has a hollow section to form a second axial passage 33. A third through hole 34 communicating with the second axial passage 33 is formed with respect to the inner end of the first pivoting portion 321; a screw sleeve 41 is disposed at The third through hole 34 is in a state of being linearly displaced from the transmission shaft 30. In this embodiment, the screw sleeve 41 can be set to a small length and fixed at the position of the third through hole 34. The inner end 31 can form a larger diameter for the nesting of the screw sleeve 41, but is not limited thereto; in another possible embodiment, the threaded sleeve 41 is formed integrally with the transmission shaft 30 and is disposed at the third The inner edge surface of the through hole 34; a screw rod 42 having a threaded portion 421 screwed into the threaded sleeve 41, and a shaft portion 422 protruding from the outside of the transmission shaft 30; a transmission case 50 There is a transmission case bottom 51 and a transmission case 52 so as to form an accommodating space 53 by screw assembly; the outer side of the transmission case 51 is provided with a lug 511 extending perpendicularly to the lug 511 is provided with a second pivoting portion 512. In this embodiment, the second pivoting portion 512 is formed by an oil bearing or a circular tube. The transmission housing 52 is provided with a second shaft hole 521 and an outer side surface. A flange 522 is provided for inserting the second through hole 22 of the outer cylinder 20 so that the outer cylinder 20 can be positioned outside the transmission casing 52. A first shaft hole 523 is defined in the center of the flange 522 for mounting a first bearing 43 , and the shaft portion 422 of the screw 42 is inserted through the first bearing 43 and penetrates into the accommodating space 53 . Inside, the screw 42 is brought into a rotatable state.

A generator set 60 having a rotating shaft 61, a stator 62, and a rotor 63. The stator 62 is provided with a positioning portion 621 and a coil assembly 622. The shaft base 623 of the positioning portion 621 is passed through the gearbox. The second shaft hole 521 of the casing 52 is fixed to the transmission case 52 by screws, so that the coil assembly 622 can be fixed to the outer edge of the transmission case 52. A second bearing 64 is disposed on the inner edge of the 623, so that the rotating shaft 61 passes through the second bearing 64 and penetrates into the accommodating space 53, so that the rotating shaft 61 is in a rotatable state; the rotor 63 has a flywheel 631 and a a magnet 632 fixed to the inner edge of the flywheel 631, the flywheel 631 is sleeved on the outer edge of the rotating shaft 61, and the magnet 632 can be rotated around the stator coil assembly 622 to form a motor system; a casing 65, The sleeve is sleeved on the outer edge of the stator 62 and the rotor 63, and the outer casing 65 is locked to the stator positioning portion 621 by screws. The one end cover 66 is screwed to the outer end of the outer casing 65, and the end is A third bearing 67 is disposed at the center of the cover 66 so that the rotating shaft 61 can be rotated through the third bearing 67.

A transmission mechanism 70 having an active member 71 and a passive member 72 coupled thereto is disposed in the accommodating space 53 of the transmission case 50. In this embodiment, the active member is a first pulley 71. The passive member is a second pulley 72, and the two pulleys 71/72 are connected by a belt 73; the first pulley 71 is screwed to the outer edge of the shaft section 422 of the screw 42. The second pulley 72 is screwed to the outer edge of the rotating shaft 61 of the genset 60 so that the rotating shaft 61 can be driven by the second pulley 72 to rotate. An idler wheel set 74 is pivotally disposed in the accommodating space 53 of the transmission case 50 for adjusting the tension of the belt 73.

Therefore, when the first pivoting portion 321 and the second pivoting portion 512 are subjected to an axial force, the transmission shaft 30 moves linearly in the first axial passage 23 to be coupled to the transmission shaft 30. The screw sleeve 41 of the three-way hole 34 is displaced to drive the screw 42 to rotate. The screw 42 further drives the first pulley 71 and is transmitted to the second pulley 72 via the belt 73, and then the rotating shaft 61 of the generator set 60 is rotated. The rotor 63 is rotated in a circular motion, and the electromagnetic load generated by the magnet 632 and the coil assembly 622 is further generated to generate a torque, which is used as a buffer and damping (load) of the linear displacement movement of the transmission shaft 30.

The damper device constructed by using a magnetic control load is an electromagnetic resistance formed by using a magnetic field fluctuation. The basic principle is that a conductor is placed in a variable magnetic flux to generate a counter electromotive force on a partially closed circuit in the conductor. The reverse electromagnetic moment is generated; and it is known by Max-well's Eq. that the magnitude of the electromagnetic torque is proportional to the square of the magnetic flux density, and the electromagnetic torque can be used as a damping (load) or buffer function of the sports equipment.

Accordingly, as shown in FIG. 5, FIG. 5A and FIG. 5B, a cross-sectional view of the transmission shaft 30 subjected to the thrust and the first axial passage 23 of the outer cylinder 20 is linearly contracted and displaced, through the screw sleeve 41. The screw 42 is driven to rotate, thereby driving the first pulley 71 to rotate clockwise (or counterclockwise), and is driven to the second pulley 72 via the belt 73, and then the rotor of the generator set 60 is driven by the rotating shaft 61. 63 is a circular rotation motion.

6 , FIG. 6A and FIG. 6B are cross-sectional views showing the driving shaft 30 being subjected to a tensile force and linearly extending and displaced from the outer side of the outer cylinder 20, and the screw 42 is driven to rotate by the outwardly displaced screw sleeve 41. The first pulley 71 is driven to rotate in a counterclockwise direction, and is driven to the second pulley 72 via the belt 73. The rotor 63 of the genset 60 is rotated by the rotating shaft 61.

FIG. 7 shows another possible embodiment of the present invention. The flywheel 631 is sleeved on the outer edge of the rotating shaft 61 by a one-way rotating member 68. When the driving shaft 30 is contracted and extended. The rotating shaft 61 rotates in a clockwise direction and sometimes in a counterclockwise direction. Since the function of the one-way rotating member 68 causes the fitting member mounted on the outer edge to always rotate in one direction, the flywheel 631 will drive the rotating shaft 631. The magnet 632 is unidirectionally rotated around the coil assembly 622 of the stator 62. In the embodiment, the one-way rotating member 68 is a one-way bearing, but is not limited thereto.

The present invention performs the linear contraction and extension displacement movement of the transmission shaft 30, so that the magnet 632 forms an electromagnetic load with the coil assembly 622 to generate a torsion force, and the damping (load) formed by the magnetic resistance does not require the use of the conventional hydraulic oil. Therefore, there is no problem of oil leakage; in addition, the characteristics of the spiral are used to improve the lead, so that the contraction and extension stroke of the transmission shaft 30 can quickly drive the generator set 60 to form a magnetic resistance and always maintain a balanced damping effect, so that the sports equipment has The utility of the function enhancement.

In summary, the structure revealed by this creation is unprecedented, and it can achieve the improvement of efficacy, and it can be used for industrial utilization. It fully complies with the new patent requirements, and invites the bureau to grant patents to encourage innovation. There is no sense of morality.

However, the drawings and descriptions disclosed above are only preferred embodiments of the present invention, and modifications or equivalent changes made by those skilled in the art in accordance with the spirit of the present invention should still be included in the scope of the patent application.

20‧‧‧Outer tube
21‧‧‧First through hole
21A‧‧‧First bushing
22‧‧‧Second through hole
23‧‧‧First axial channel
30‧‧‧Drive shaft
31‧‧‧Inside
32‧‧‧Outside
321‧‧‧First pivotal
33‧‧‧Second axial channel
34‧‧‧ third through hole
35‧‧‧ bushing
41‧‧‧Spiral sleeve
42‧‧‧ screw
421‧‧ Thread segment
422‧‧‧ shaft section
43‧‧‧First bearing
50‧‧‧ gearbox
51‧‧‧ Transmission case
511‧‧‧ lugs
512‧‧‧Second pivotal
52‧‧‧ Transmission case
521‧‧‧Second shaft hole
522‧‧‧Flange
523‧‧‧First shaft hole
53‧‧‧ accommodating space
60‧‧‧Generator
61‧‧‧ shaft
62‧‧‧ Stator
621‧‧‧ Positioning Department
622‧‧‧ coil set
623‧‧‧ shaft seat
63‧‧‧Rotor
631‧‧‧Flywheel
632‧‧‧ Magnet
64‧‧‧second bearing
65‧‧‧Shell
66‧‧‧End cover
67‧‧‧ Third bearing
68‧‧‧One-way rotating parts
70‧‧‧Transmission mechanism
71‧‧‧Initiative/first pulley
72‧‧‧ Passive/Second Pulley
73‧‧‧Land
74‧‧‧Idle wheel set

Figure 1A is a schematic view showing the appearance of a sports equipment. Fig. 1B is a structural sectional view showing a conventional hydraulic cylinder damper. Figure 2 is an exploded perspective view of a preferred embodiment of the present invention. Figure 3 is a perspective view of the combination of the preferred embodiment of the present invention. Figure 4 is a combined cross-sectional view of a preferred embodiment of the present invention. Figure 5 is a cross-sectional view of the present invention in a linear contraction displacement motion. Figure 5A is a cross-sectional view taken along line 5A-5A of Figure 5. Figure 5B is a cross-sectional view taken along line 5B-5B of Figure 5. Figure 6 is a cross-sectional view of the present invention in a linear extended displacement motion. Figure 6A is a cross-sectional view taken along line 6A-6A of Figure 6. Figure 6B is a cross-sectional view taken along line 6B-6B of Figure 6. Figure 7 is a cross-sectional view of a generator set of another embodiment of the present invention.

20‧‧‧Outer tube

21‧‧‧First through hole

21A‧‧‧First bushing

22‧‧‧Second through hole

23‧‧‧First axial channel

30‧‧‧Drive shaft

31‧‧‧Inside

32‧‧‧Outside

321‧‧‧First pivotal

34‧‧‧ third through hole

41‧‧‧Spiral sleeve

42‧‧‧ screw

421‧‧ Thread segment

422‧‧‧ shaft section

43‧‧‧First bearing

51‧‧‧ Transmission case

511‧‧‧ lugs

512‧‧‧Second pivotal

52‧‧‧ Transmission case

521‧‧‧Second shaft hole

523‧‧‧First shaft hole

60‧‧‧Generator

61‧‧‧ shaft

62‧‧‧ Stator

621‧‧‧ Positioning Department

622‧‧‧ coil set

623‧‧‧ shaft seat

63‧‧‧Rotor

631‧‧‧Flywheel

632‧‧‧ Magnet

64‧‧‧second bearing

65‧‧‧Shell

66‧‧‧End cover

71‧‧‧Initiative/first pulley

72‧‧‧ Passive/Second Pulley

73‧‧‧Land

74‧‧‧Idle wheel set

Claims (10)

A linear electromagnetic control damper comprising: an outer cylinder having a first through hole and a second through hole at two ends thereof, wherein a first axial passage is formed between the first and second through holes; The shaft has an inner end and an outer end, and the outer end protrudes outside the first through hole, and is provided with a first pivoting portion, wherein the inner end is displaceable in the outer cylinder; the transmission shaft has a hollow Forming a second axial passage, and the transmission shaft forms a third through hole communicating with the second axial passage relative to the inner end of the first pivoting portion; a screw sleeve is disposed at the a three-way hole in a state of linear displacement of the drive shaft; a screw having a threaded portion that can be screwed into the threaded sleeve, and a second axial passage extending from the drive shaft a transmission case having a transmission case bottom case and a transmission case casing, the combination thereof is configured to form an accommodation space, and the outer side of the transmission case bottom case is provided with a second pivoting portion, the transmission case The casing is provided with a second shaft hole, and the outer side surface is provided with a flange for embedding a second through hole of the outer tube, and the flange is provided with a first shaft hole for mounting a first bearing, the shaft portion of the screw is inserted through the first bearing and penetrates into the accommodating space, The rotating shaft is in a rotatable state; a generator set having a rotating shaft, a stator, and a rotor, the stator is provided with a positioning portion and a coil assembly, and the shaft seat of the positioning portion is disposed through the second shaft hole The second coil bearing is disposed in the positioning portion, and the rotating shaft is inserted into the accommodating space, so that the rotating shaft is presented. Rotatable, the rotor has a flywheel, and a magnet fixed to the inner edge of the flywheel, the flywheel sleeve is sleeved on the outer edge of the rotating shaft, and the magnet can be rotated around the stator coil assembly to form a motor a transmission mechanism having an active member and a passive member coupled thereto, is disposed in a receiving space of the transmission box, and the active member is sleeved on an outer edge of the shaft portion of the screw, so that Rotating by the screw, the passive member is sleeved on the outer edge of the shaft Rotating the rotating shaft to be driven by the passive member; thereby, when the first pivoting portion and the second pivoting portion are subjected to an axial force, the driving shaft linearly moves in the first axial passage The screw sleeve drives the screw to rotate, and the rotating shaft is rotated by the transmission mechanism to rotate the rotor in a circular motion, and the electromagnetic load formed by the magnet and the coil assembly further generates a torque as the transmission axis. Buffering and damping of sexual displacement motion. The linear EM damper of claim 1, wherein the flywheel of the genset is sleeved on the outer edge of the shaft with a one-way rotating member, so that the magnet can only surround the stator in one direction. The coil set rotates. The linear electromagnetic damper according to claim 1 or 2, wherein the active member of the transmission mechanism is a first pulley, the passive member is a second pulley, and a belt is provided between the two pulleys. Make a link. The linear electromagnetic damper of the invention of claim 3, wherein the transmission mechanism further comprises an idler wheel set pivotally disposed in the accommodating space for adjusting the tension of the belt. The linear electromagnetically controlled damper according to claim 1 or 2, wherein the generator set further comprises a casing sleeved on an outer edge of the stator and the rotor, and an end cover is assembled on the outer casing The outer end of the end cap is provided with a third bearing, so that the rotating shaft can be rotated through the third bearing. The linear electromagnetically controlled damper according to claim 1 or 2, wherein the first through hole is constituted by a first sleeve nested at an outer port of the outer cylinder, and the first sleeve A bushing is disposed between the inner ring surface and the outer diameter of the drive shaft. The linear electromagnetically controlled damper according to claim 1 or 2, wherein the first pivoting portion is formed by an oil-impregnated bearing or a circular tube extending in a vertical direction from an outer end of the transmission shaft. The linear electromagnetic damper of claim 1 or 2, wherein the outer side of the transmission case is provided with a lug, and the second pivoting portion extends from the vertical direction to the oil of the lug. Bearing or round tube. The linear electromagnetically controlled damper of claim 1 or 2, wherein the screw sleeve is set to a small length and fixed at the position of the third through hole. The linear electromagnetically controlled damper according to claim 1 or 2, wherein the screw sleeve is integrally formed with the transmission shaft and disposed on an inner peripheral surface of the third through hole.