CN114221516A - Magnetic transmission mechanism of vacuum box - Google Patents
Magnetic transmission mechanism of vacuum box Download PDFInfo
- Publication number
- CN114221516A CN114221516A CN202111292245.2A CN202111292245A CN114221516A CN 114221516 A CN114221516 A CN 114221516A CN 202111292245 A CN202111292245 A CN 202111292245A CN 114221516 A CN114221516 A CN 114221516A
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- vacuum box
- magnet
- mounting
- transmission mechanism
- motor
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 78
- 230000007246 mechanism Effects 0.000 title claims abstract description 33
- 230000005389 magnetism Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 26
- 230000007774 longterm Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 description 23
- 239000001307 helium Substances 0.000 description 19
- 229910052734 helium Inorganic materials 0.000 description 19
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 19
- 238000001514 detection method Methods 0.000 description 6
- 125000004122 cyclic group Chemical group 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K51/00—Dynamo-electric gears, i.e. dynamo-electric means for transmitting mechanical power from a driving shaft to a driven shaft and comprising structurally interrelated motor and generator parts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/102—Magnetic gearings, i.e. assembly of gears, linear or rotary, by which motion is magnetically transferred without physical contact
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manipulator (AREA)
Abstract
The invention discloses a magnetic transmission mechanism of a vacuum box, which is arranged on the vacuum box and used for driving a conveying device in the vacuum box to rotate. The first magnet is connected with the motor and is driven by the motor to rotate; the second magnet sets up in the vacuum chamber, set up with first magnet relatively, and second magnet is the same with the relative one side magnetism of first magnet, the box of the same contactless vacuum chamber of second magnet, drive mechanism through first magnet and second magnet inter attraction and drive can avoid arousing the damage to the vacuum chamber because of rotating drive mechanism, and then avoid the vacuum chamber to reveal the air because drive mechanism's long-term use, can guarantee that the motor is in the outside transmission assembly who also can drive the vacuum chamber inside function of vacuum chamber, also can guarantee the closure and the endurance of vacuum chamber.
Description
Technical Field
The invention relates to the technical field of sealing technology, in particular to a magnetic transmission mechanism of a vacuum box.
Background
The existing helium side leakage detection device mostly adopts a bubble method and a vacuum box for detection, a helium tank to be detected is placed in water, bubbles and air pressure difference formed by helium in the water are checked, whether helium is in side leakage or not is determined, but the detection data of the mode is not accurate, and the size of helium side leakage and the leakage condition and data cannot be known. The helium gas detected in the vacuum box mainly drives the transmission shaft to rotate through the external motor, and the helium gas detected in the vacuum box can ensure the accuracy of data and control the leakage condition of the helium gas through the detection system in the transmission shaft driving vacuum box. But the transmission shaft of present vacuum chamber directly passes the vacuum chamber lateral wall, is equipped with the sealing washer between transmission shaft and the vacuum chamber lateral wall, because the high-speed operation of motor, wearing and tearing are serious between transmission shaft and the sealing washer to there is the sealed effect variation of vacuum chamber and external switch-on risk for long-term use, helium reveals easily, and then influences the helium and examine the effect. And need frequently to change the sealed sealing washer in order to guarantee the vacuum chamber leakproofness, dismantle the installation troublesome, extravagant manpower and materials, so need a reduction to the drive mechanism of vacuum chamber lateral wall and sealing device wearing and tearing urgent.
Disclosure of Invention
The invention aims to provide a magnetic transmission mechanism of a vacuum box, which enables the vacuum box to have better sealing property and endurance and longer service life, and further ensures the accuracy of helium detection.
In order to solve the above technical problem, an embodiment of the present invention provides a vacuum box magnetic transmission mechanism, which is disposed on a vacuum box and drives a conveying device in the vacuum box to rotate, and the vacuum box magnetic transmission mechanism includes:
a motor;
the first magnet is connected with the motor and is driven by the motor to rotate;
the second magnet is arranged in the vacuum box and is opposite to the first magnet, and the magnetism of one side of the second magnet opposite to the first magnet is the same;
the transmission shaft assembly is positioned in the vacuum box and fixed with the second magnet; and the number of the first and second groups,
and the chain wheel assembly is positioned in the vacuum box and is connected with the transmission shaft assembly and the conveying device in the vacuum box.
In one embodiment, the vacuum box magnetic transmission mechanism further comprises: the base is used for being fixed on the vacuum box;
the drive shaft assembly includes:
the transmission shaft is fixed with the second magnet and penetrates through the base; and the number of the first and second groups,
and the bearing is sleeved on the transmission shaft and is connected with the base.
In one embodiment, the vacuum box is provided with a mounting neck pipe extending along the direction of the main shaft of the motor, and one end of the mounting neck pipe facing the inside of the vacuum box is provided with a first mounting port; the base is connected with one end, facing the inside of the vacuum box, of the mounting neck pipe and seals the first mounting port.
In one embodiment, the outward end of the mounting neck has a second mounting opening; the outward end of the mounting neck is connected with a cover plate, and the cover plate is used for sealing the second mounting opening and separating the first magnet from the second magnet.
In one embodiment, the second magnet is proximate to the cover plate.
In one embodiment, the cover plate is flanged to the mounting neck with a sealing ring disposed therebetween.
In one embodiment, the mounting neck projects outside the vacuum box; the lower part of the motor is connected with the rack, and the rack extends to the lower part of the mounting neck pipe and is separated from the mounting neck pipe.
In one embodiment, the sprocket assembly comprises:
the first chain wheel is sleeved on the transmission shaft;
the second chain wheel is connected with the conveying device and is positioned below the first chain wheel; and the number of the first and second groups,
a chain connecting the first sprocket and the second sprocket.
In one embodiment, the first magnet, the second magnet, and the drive shaft assembly are coaxially disposed with a main shaft of the motor.
In one embodiment, the conveying device is provided with a plurality of rows of roller groups which are sequentially arranged, each roller group is provided with a plurality of rollers which are in transmission connection, and the arrangement direction of each roller in one row of roller groups is perpendicular to the arrangement direction of each roller group;
wherein the chain wheel component is connected with the rollers in the roller group adjacent to the chain wheel component.
When the vacuum box magnetic transmission mechanism operates, the first magnet is driven by the motor to rotate, the first magnet acts on the second magnet to enable the second magnet to correspondingly rotate, the second magnet is connected with the transmission shaft assembly and drives the transmission shaft assembly to rotate, the transmission shaft assembly rotates to drive the chain wheel assembly to transmit, and the chain wheel assembly drives the conveying device to rotate, so that the vacuum box magnetic transmission mechanism cannot penetrate through the vacuum box, the vacuum box is prevented from being worn by the vacuum box magnetic transmission mechanism after being used for a long time, the vacuum box is always in a good sealing state during long-term use, helium cannot leak out of the vacuum box when helium exists in the vacuum box, the helium detection accuracy is guaranteed, and the atmosphere cannot be polluted.
Drawings
FIG. 1 is a perspective view of a vacuum box of one embodiment of the present invention.
Fig. 2 is a perspective view of a magnetic rotating mechanism according to an embodiment of the present invention.
FIG. 3 is a cross-sectional view of a vacuum box of one embodiment of the present invention.
Fig. 4 is a partially enlarged view of a portion a in fig. 3.
100. A magnetic transmission mechanism of the vacuum box; 1. a motor; 2. a first magnet; 3. a second magnet; 4. a driveshaft assembly; 41. a drive shaft; 42. a bearing; 5. a sprocket assembly; 51. a first sprocket; 52. a second sprocket; 6. a base; 61. a chassis; 62. an installation part; 63. mounting holes; 200. a vacuum box; 201. mounting a neck pipe; 2011. a first mounting port; 2012. a first mounting port; 202. a cover plate; 203. a conveying device; 2031. a roller set; 2032. a drum; 2033. a rotating shaft; 204. and a frame.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
In the following description, for the purposes of illustrating various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that the embodiments may be practiced without one or more of the specific details. In other instances, well-known devices, structures and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.
Throughout the specification and claims, the word "comprise" and variations thereof, such as "comprises" and "comprising," are to be understood as an open, inclusive meaning, i.e., as being interpreted to mean "including, but not limited to," unless the context requires otherwise.
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings in order to more clearly understand the objects, features and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely intended to illustrate the spirit of the technical solution of the present invention.
Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
As used in this specification and the appended claims, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.
In the following description, for the purposes of clearly illustrating the structure and operation of the present invention, directional terms will be used, but terms such as "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "upper", "lower", etc. should be construed as words of convenience and should not be construed as limiting terms.
Embodiments of the present invention are described below with reference to the drawings.
The invention relates to a vacuum box magnetic transmission mechanism 100, the vacuum box magnetic transmission mechanism 100 is arranged on a vacuum box 200 and drives a conveying device 203 in the vacuum box 200 to rotate, and the vacuum box magnetic transmission mechanism 100 comprises a motor 1, a first magnet 2, a second magnet 3, a transmission shaft assembly 4 and a chain wheel assembly 5. First magnet 2 links to each other with motor 1, and by motor 1 drive rotates, and first magnet 2 and motor 1 all set up with vacuum chamber 200 outside, and contactless and vacuum chamber 200. The second magnet 3 is arranged in the vacuum box 200 and opposite to the first magnet 2, and the magnetism of the opposite side of the second magnet 3 and the first magnet 2 is the same, and the first magnet 2 acts on the second magnet 3 to enable the second magnet 3 to rotate correspondingly. The transmission shaft assembly 4 is located in the vacuum chamber 200 and fixed to the second magnet 3. The sprocket assembly 5 is located within the vacuum box 200 and connects the drive shaft assembly 4 to the conveyor 203 within the vacuum box 200. First magnet 2 is driven by motor 1 and rotates, first magnet 2 lets the corresponding rotation of second magnet 3 to the 3 effects of second magnet, second magnet 3 links to each other and drives transmission shaft assembly and rotate with transmission shaft assembly, transmission shaft assembly 4 rotates and drives the transmission of sprocket assembly, let 5 drive conveyor 203 of sprocket assembly operate, thereby vacuum box magnetic transmission mechanism can not run through vacuum box 200, vacuum box magnetic transmission mechanism long-term use has been avoided and has been caused wearing and tearing to vacuum box 200, make vacuum box 200 be in better encapsulated situation always in long-term use, and then when there is the helium in vacuum box 200, the helium can not be revealed outside vacuum box 200, the degree of accuracy that the helium examined has been guaranteed, can not cause the pollution to the atmosphere yet.
Further, the vacuum box magnetic transmission mechanism 100 further comprises a base 6 for fixing on the vacuum box 200, it is understood that the base 6 is fixedly connected to the inside of the vacuum box 200 for installing the transmission shaft assembly 4, and the base 6 can be connected to the inside of the vacuum box 200 in various ways, such as by screwing on a sidewall of the inside of the vacuum box 200. In the embodiment shown in the figures, the vacuum box 200 has a mounting neck 201 extending along the main axis direction of the motor 1, a first mounting port 2011 is opened at one end of the mounting neck 201 facing the inside of the vacuum box 200, and the base 6 is connected with one end of the mounting neck 201 facing the inside of the vacuum box 200 and seals the first mounting port 2011. Specifically, the mounting neck 201 is a metal pipe embedded into the side of the vacuum box 200, one end of the mounting neck 201 is located inside the vacuum box 200, the other end of the mounting neck is located outside the vacuum box 200, and the mounting neck 201 and the vacuum box 200 are integrally formed; or a through hole penetrating through the side part of the vacuum box 200 is formed in the side part of the vacuum box 200, then the mounting neck pipe 201 is embedded into the through hole, and the mounting neck pipe 201 and the vacuum box 200 are connected in a sealing matching mode. The shape of installation neck 201 is not limited, and can be the cylindrical pipeline of cross-section, also can be polygonal pipeline, also can be other irregular pipelines, and in one embodiment, installation neck 201 is the cylindrical pipeline, and first installing port 2011 is seted up on installation neck 201 to be the opening towards the inside one end of vacuum box 200. The one end that first installing port 2011 was seted up to installation neck 201 is equipped with a plurality of connecting holes and is used for connecting base 6, and optionally, first installing port 2011 circumference is surrounded there is cyclic annular connecting portion, and cyclic annular connecting portion orientation is kept away from installation neck 201 circumference and is extended, and a plurality of connecting holes can also set up on cyclic annular connecting portion, and base 6 can be connected in installation neck 201 through cyclic annular connecting portion. Further, the base 6 includes a chassis 61 and a mounting portion 62, the mounting portion 62 is tubular and is connected to one side of the chassis 61, specifically, the mounting portion 62 is located inside the mounting neck 201, one end of the chassis 61 is located inside the mounting neck 201, and the other end is close to the inside of the vacuum box 200. A through cylindrical mounting hole 63 is formed in the chassis 61 and the mounting portion 62, one end of the mounting hole 63 opens towards the inside of the vacuum box 200, the other end of the mounting hole is located inside the mounting neck 201, and the transmission shaft 41 of the transmission shaft assembly 4 can penetrate through the mounting hole 63 from the mounting neck 201 to enter the inside of the vacuum box. The base plate 61 is provided with a plurality of holes which are respectively aligned with the connecting holes of the mounting neck pipe 201, and bolts can be screwed into the connecting holes of the mounting neck pipe 201 from the holes of the base plate 61, so that the base plate 61 is connected to the mounting neck pipe 201.
The position of the mounting neck 201 on the vacuum box 200 can be adjusted as required, and can be arranged on any one side plate of the vacuum box 200, and the outer end of the mounting neck 201 needs to be aligned with the first magnet 2. In the embodiment shown in fig. 1, the motor 1 and the first magnet 2 are disposed outside the vacuum box 200 and near a position below the vacuum box 200, the mounting neck 201 is disposed on one side plate of the vacuum box 200, and the mounting neck 201 is aligned with the first magnet 2. The internal diameter of installation neck 201 is greater than the diameter of second magnet 3 at least in order to facilitate the installation second magnet 3, and the internal diameter of installation neck 201 can guarantee at least that second magnet 3 can be at installation neck 201 internal rotation to second magnet 3 can not touch the inner wall of installation neck 201 when rotating.
The end of the mounting neck 201 facing the outside of the vacuum box 200 is provided with a second mounting opening 2012, and the end of the mounting neck 201 located outside the vacuum box 200 is connected with a cover plate 202, and the cover plate 202 is used for sealing the second mounting opening 2012 and separating the first magnet 2 from the second magnet 3. In the embodiment shown in fig. 3 and 4, the cover plate 202 is flanged to the mounting neck 201, in particular, the end of the mounting neck 201 facing the second mounting opening 2012 is provided with a plurality of threaded holes, the shape of the cover plate 202 matches the end of the mounting neck 201, and the cover plate 202 is circumferentially provided with a plurality of holes aligned with the threaded holes of the mounting neck 201, and the cover plate 202 can be connected to the mounting neck 201 by bolts. Optionally, a sealing ring is disposed between the cover plate 202 and the mounting neck 201, specifically, the cover plate 202 is disc-shaped and sized to match the end surface of the mounting neck 201, and an inwardly recessed annular groove is disposed on one side of the cover plate 202, the annular groove and the cover plate 202 are coaxial and the annular groove is close to the outer periphery of the cover plate 202. The sealing washer is cyclic annular and have elasticity, and the sealing washer can be installed in annular groove and the sealing washer install in annular groove back bulge slightly in annular groove, apron 202 through the bolt constantly screw up and connect with installation neck 201 after, apron 201 and installation neck 201 constantly compress tightly the sealing washer and can make the sealing washer compressed, and then make sealing connection between apron 202 and the installation neck 201. It will be appreciated that the sealing ring may also be provided on the end face of the mounting neck 201, i.e. an inwardly recessed groove is provided on the end face of the mounting neck 201, which groove extends in a ring shape along the end face of the mounting neck 201, and the sealing ring is also mounted in the groove, and the sealing function between the cover plate 202 and the mounting neck 201 may also be achieved by the pressing of the cover plate 202 and the mounting neck 201. It will be appreciated that the sealing ring may be silicone or other resilient material. First magnet 2 is pressed close to the outside of apron 202, second magnet 3 is located the inside of installation neck 201 and is pressed close to apron 202, but first magnet 2 and second magnet 3 all do not contact with apron 202, first magnet 2 can drive second magnet 3 and rotate, and the rotation of first magnet 2 and second magnet 3 can not touch apron 202 or the inner wall of installation neck 201, therefore apron 202 can not receive wearing and tearing because first magnet 2 and second magnet 3 rotate, thereby avoid making in the outside air gets into vacuum chamber 200 because the wearing and tearing of apron 202, still can avoid the helium in vacuum chamber 200 to leak to the outside.
Optionally, the end of the mounting neck 201 close to the second mounting opening 2012 protrudes outside the vacuum box 200, and the cover plate 202 is connected to the mounting neck 201 and protrudes outside the vacuum box 200, and it can be understood that the cover plate 202 may slightly protrude outside the vacuum box 200 or may be aligned with the outside of the vacuum box 200, that is, the position of the cover plate 202 does not affect the use of the vacuum box 200 and can ensure the sealing performance of the mounting neck 201.
The propeller shaft assembly 4 includes a propeller shaft 41 and a bearing 42. One end of the transmission shaft 41 is fixedly connected with the second magnet 3 and can penetrate through the base 6 to the inside of the vacuum box 200, and the other end is connected with a chain wheel in the vacuum box 200. The bearings 42 are fixedly installed in the installation holes 63 of the base 6 and are sleeved on the transmission shaft 41, the transmission shaft 41 penetrates through the bearings 42 and enters the vacuum box 200, it is understood that the number of the bearings 42 can be multiple or single, and the outer diameter of the bearings 42 matches the inner diameter of the installation holes 63, so that the bearings 42 can be stably installed in the installation holes 63, in the embodiment shown in fig. 4, there are two bearings 42 in the installation holes 63, and the two bearings 42 are respectively installed at two ends of the installation holes 63, and one end of one end is close to the inner side of the vacuum box 200, that is, located inside the chassis 61; the other is disposed at one end of the interior of the mounting neck 201, i.e., within the mounting portion 62. The transmission shaft 41 penetrates through the bearing 42, one end of the transmission shaft 41 is connected with the second magnet 3, the other end of the transmission shaft 41 is connected with the chain wheel in the vacuum box 200, the second magnet 3 can drive the transmission shaft 41 to rotate, and the transmission shaft 41 drives the chain wheel to rotate so as to drive the chain wheel assembly 5 in the vacuum box to operate. The whole transmission shaft 41 does not directly contact the side plate of the vacuum box 200, and the bearing 42 can reduce the friction of the transmission shaft 41 to the base 6 when rotating, thereby enhancing the endurance of the vacuum box 200.
Further, first magnet 2, second magnet 3, the coaxial setting of transmission shaft subassembly 4 and motor 1's main shaft, first magnet 2 promptly, the axle center coincidence of second magnet 3 and motor 1's main shaft, as shown in fig. 2, fig. 3 and fig. 4, first magnet 2 and second magnet 3 are discoid, motor 1's main shaft be the cylinder and connect with first magnet 2, motor 1's main shaft and the coaxial setting of first magnet 2 drive the operation of first magnet 2, first magnet 2 and the coaxial setting of second magnet 3 are more favorable to the rotation that first magnet 2 drove second magnet 3. It will be appreciated that the second magnet 3 and the drive shaft 41 are also arranged coaxially.
The sprocket assembly 5 comprises a first sprocket 51, a second sprocket 52 and a chain (not shown), wherein the first sprocket 51 is sleeved on the transmission shaft 41; the second chain wheel 52 is connected with the conveying device 203, and the second chain wheel 52 is positioned below the first chain wheel 51; the chain is sleeved on the first chain wheel 51 and the second chain wheel 52, and the first chain wheel 51 can drive the second chain wheel 52 to run through the chain. As can be appreciated, the first sprocket 51 is disposed coaxially with the drive shaft 41. The second sprocket 52 is disposed directly below the first sprocket 51, or may be disposed below the first sprocket 51 in a staggered manner, that is, the axial centers of the first sprocket 51 and the second sprocket 52 are not on a vertical plane, and the first sprocket 51 and the second sprocket 52 may have the same size or different sizes, and may be disposed as needed. The first chain wheel 51 drives the second chain wheel 52 to rotate through a chain, the second chain wheel 52 is connected with the conveying device 203 and can drive the conveying device 203 to rotate, specifically, the conveying device 203 has a plurality of rows of sequentially arranged roller groups 2031, each roller group 2031 has a plurality of rollers 2032 in transmission connection, and the arrangement direction of each roller 2032 in each row of roller groups 2031 is perpendicular to the arrangement direction of each roller group 2031; wherein the sprocket assembly 5 is connected to the rollers 2032 of its adjacent roller set 2031. One end of the second sprocket 52 is fixedly connected to the rotating shaft 2033, the second sprocket 52 and the rotating shaft 2033 are coaxially disposed and can drive the rotating shaft 2033 to rotate, and the rotating shaft 2033 extends along the plurality of sequentially arranged roller groups 2031 and can drive each roller group 2031 to roll. The rollers 2032 of the roller groups 2031 are driven by a chain, i.e., the shaft 2033 can drive the rollers 2032 of each row of roller groups 2031 to roll.
The motor 1 is arranged on a frame 204, and the frame 204 is arranged on the vacuum box 200 below the mounting neck pipe 201 and is spaced from the mounting neck pipe 201 by a certain distance. In the embodiment shown in fig. 1, the frame 204 is attached to the bottom of the vacuum box 200, and the bottom of the frame 204 may be in the same plane as the bottom of the vacuum box 200 to facilitate the more stable placement of the vacuum box 200 on the ground or other platform. The motor 1 is disposed on the top of the frame 204, and the frame 204 can support the operation of the motor 1.
The vacuum box magnetic transmission mechanism 100 is arranged in the vacuum box 200, and the vacuum box 200 can be used for detecting helium leakage and testing other gas leakage. According to the invention, the first magnet 2 and the second magnet 3 are respectively arranged outside and inside the vacuum box 200 and are not in contact with the vacuum box 200, the first magnet 2 is connected with the external motor 1, the motor 1 drives the first magnet 2 to rotate, so that the second magnet 3 is caused to rotate, the second magnet 3 is connected with the transmission shaft 41 inside the vacuum box 200 and can drive the transmission shaft 41 to rotate, the whole transmission shaft assembly 4 is not in contact with the vacuum box 200 during operation, so that the vacuum box 200 is prevented from being worn or broken due to long-term use of the transmission shaft assembly 4, the motor 1 can be positioned outside the vacuum box 200 and can drive the transmission shaft assembly 4 inside the vacuum box 200 to operate, and the sealing property and the fatigue resistance of the vacuum box 200 can be ensured.
While the preferred embodiments of the present invention have been described in detail above, it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide yet further embodiments. These and other changes can be made to the embodiments in light of the above detailed description. In general, in the claims, the terms used should not be construed to be limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled.
Claims (10)
1. A vacuum box magnetic transmission mechanism is characterized in that the vacuum box magnetic transmission mechanism is used for being arranged on a vacuum box and driving a conveying device in the vacuum box to rotate, and comprises:
a motor;
the first magnet is connected with the motor and is driven by the motor to rotate;
the second magnet is arranged in the vacuum box and is opposite to the first magnet, and the magnetism of one side of the second magnet opposite to the first magnet is the same;
the transmission shaft assembly is positioned in the vacuum box and fixed with the second magnet; and the number of the first and second groups,
and the chain wheel assembly is positioned in the vacuum box and is connected with the transmission shaft assembly and the conveying device in the vacuum box.
2. The vacuum box magnetic transmission mechanism of claim 1, further comprising: the base is used for being fixed on the vacuum box;
the drive shaft assembly includes:
the transmission shaft is fixed with the second magnet and penetrates through the base; and the number of the first and second groups,
and the bearing is sleeved on the transmission shaft and is connected with the base.
3. The magnetic transmission mechanism of the vacuum box as claimed in claim 2, wherein the vacuum box is provided with a mounting neck tube extending along the main shaft direction of the motor, and one end of the mounting neck tube facing the inside of the vacuum box is provided with a first mounting port; the base is connected with one end, facing the inside of the vacuum box, of the mounting neck pipe and seals the first mounting port.
4. The vacuum box magnetic transmission mechanism of claim 3, wherein the outward end of the mounting neck has a second mounting port; the outward end of the mounting neck is connected with a cover plate, and the cover plate is used for sealing the second mounting opening and separating the first magnet from the second magnet.
5. The vacuum box magnetic drive of claim 4, wherein the second magnet is proximate to the cover plate.
6. The vacuum box magnetic transmission mechanism according to claim 4, wherein the cover plate is flanged with the mounting neck, and a sealing ring is arranged between the cover plate and the mounting neck.
7. A vacuum box magnetic transmission as claimed in claim 3, wherein the mounting neck projects outside the vacuum box; the lower part of the motor is connected with the rack, and the rack extends to the lower part of the mounting neck pipe and is separated from the mounting neck pipe.
8. The vacuum box magnetic transmission mechanism of claim 2, wherein the sprocket assembly comprises:
the first chain wheel is sleeved on the transmission shaft;
the second chain wheel is connected with the conveying device and is positioned below the first chain wheel; and the number of the first and second groups,
a chain connecting the first sprocket and the second sprocket.
9. The vacuum box magnetic transmission mechanism of claim 1, wherein the first magnet, the second magnet, and the transmission shaft assembly are coaxially disposed with a main shaft of the motor.
10. The magnetic transmission mechanism of the vacuum box according to claim 1, wherein the conveying device is provided with a plurality of rows of roller groups which are sequentially arranged, each roller group is provided with a plurality of rollers which are in transmission connection, and the arrangement direction of the rollers in one row of roller groups is perpendicular to the arrangement direction of each roller group;
wherein the chain wheel component is connected with the rollers in the roller group adjacent to the chain wheel component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111292245.2A CN114221516A (en) | 2021-11-03 | 2021-11-03 | Magnetic transmission mechanism of vacuum box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111292245.2A CN114221516A (en) | 2021-11-03 | 2021-11-03 | Magnetic transmission mechanism of vacuum box |
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| Publication Number | Publication Date |
|---|---|
| CN114221516A true CN114221516A (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111292245.2A Pending CN114221516A (en) | 2021-11-03 | 2021-11-03 | Magnetic transmission mechanism of vacuum box |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101630893A (en) * | 2009-08-04 | 2010-01-20 | 东莞宏威数码机械有限公司 | Vacuum magnetic transmission mechanism |
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| CN110611397A (en) * | 2019-10-16 | 2019-12-24 | 北京泓慧国际能源技术发展有限公司 | Flywheel energy storage device |
| CN212721942U (en) * | 2020-07-15 | 2021-03-16 | 湖北锐诚真空科技有限公司 | Vacuum box type helium leakage detection device |
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| CN101630893A (en) * | 2009-08-04 | 2010-01-20 | 东莞宏威数码机械有限公司 | Vacuum magnetic transmission mechanism |
| CN204420043U (en) * | 2015-01-23 | 2015-06-24 | 深圳市金耀玻璃机械有限公司 | A kind of magnetic drive device |
| CN206918256U (en) * | 2017-04-28 | 2018-01-23 | 星弧涂层新材料科技（苏州）股份有限公司 | Ultrahigh vacuum magnetic coupling type seals |
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| CN208353147U (en) * | 2018-07-25 | 2019-01-08 | 广州威德玛环境仪器有限公司 | A kind of low pressure test chamber by strong Magnetic drive |
| CN110611397A (en) * | 2019-10-16 | 2019-12-24 | 北京泓慧国际能源技术发展有限公司 | Flywheel energy storage device |
| CN212721942U (en) * | 2020-07-15 | 2021-03-16 | 湖北锐诚真空科技有限公司 | Vacuum box type helium leakage detection device |
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Application publication date: 20220322 |