CN209688119U - A kind of magnetic seal transmission device - Google Patents

Abstract

The utility model discloses a kind of magnetic seal transmission devices, including coaxially arranged driving shaft and driven shaft, are also arranged with sealing axle sleeve on driving shaft and driven shaft, driving shaft is respectively fixed with the first magnet and the second magnet on the end face opposite with driven shaft；Driven shaft is equipped with the mounting groove arranged and be recessed inwardly around driven shaft close to the periphery of second magnet one end, the utility model can ensure sealing effect when being driven, driving shaft and driven shaft pass through being fully sealed between sealing shroud realization and attachment device, first magnet attracts each other with the second magnet, make to generate magnetic couple by the first magnet and the second magnet between driving shaft and driven shaft, driven shaft can follow driving shaft to rotate forward or backwards, realize the function of magnetic seal transmission device positive and negative rotation；The mounting groove combination ball being arranged on driven shaft is capable of forming end face bearing, can significantly reduce the frictional force of driven shaft rotation, the transmission efficiency with higher while ensuring to seal transmission.

Description

A kind of magnetic seal transmission device

Technical field

The utility model relates to seal transmission technical field, and in particular to a kind of magnetic seal transmission device.

Background technique

In chemical industry, carried out under the conditions of many reactions are high-revolving, since transmission shaft is applied in inside and outside equipment, in this way Transmission shaft needs to have a circumferential clearance between high pressure, condition of high vacuum degree, device with reacting to hold, and the medium in equipment passes through between this Gap leaks out, if pressure is subatmospheric in equipment, air is to equipment internal leakage, it is therefore necessary to have a prevention leakage Gland seal device, no person not can guarantee the reaction condition of high pressure, condition of high vacuum degree not only, influences reaction process.In the prior art, axis The mode of envelope generallys use the all-metal mechanical seal of plane bearing, and coating lubricating oil is needed to lubricate, and partial material steam can be right Mechanical sealing member is corroded, and tightness, contaminated material are reduced.Using all-metal mechanical seal, after using one end time, gold Lubrication is without generating self-priming between category, it is possible to turn motionless and perhaps increase motor output and lead to that the motor feels hot or other There is work safety accident in situation, and existing plane magnetic seal transmission efficiency is not high on the market, and can only single direction rotation Turn.

Utility model content

For the defects in the prior art, the purpose of the utility model is to provide the magnetic seal biographies that one kind is capable of positive and negative rotation Dynamic device, improves traditional efficiency while ensuring the leakproofness in transmission process.

The technical scheme adopted by the utility model is a kind of magnetic seal transmission device, including coaxially arranged active Axis and driven shaft, are also arranged with sealing axle sleeve on the driving shaft and driven shaft, it is described be sealing axle sleeve correspond to driving shaft and from It is equipped with the isolation part for separating driving shaft and driven shaft between moving axis, it is tight that installation is respectively provided on the driving shaft and driven shaft Determine the eccentric screwhole I and eccentric screwhole II of screw, the eccentric screwhole I on the driving shaft and the eccentric screwhole II on driven shaft are equal Screw-in has holding screw.

The driving shaft is respectively fixed with the first magnet and the second magnet on the end face opposite with driven shaft；The driving shaft It is equipped between the first magnet and is fixed on active axial end and iron plate I, the eccentric orfice I and eccentric spiral shell with eccentric orfice I Hole I concentric.It is equipped between the driven shaft and the second magnet and is fixed on driven axial end and the iron plate with eccentric orfice II II, the eccentric orfice II and eccentric screwhole II concentric；The eccentric orfice I of the iron plate I passes through the holding screw on driving shaft, iron The eccentric orfice II of piece II passes through the holding screw on driven shaft.

First magnet and iron plate I magnetism are coupled generated magnetic moment and are greater than holding screw eccentric on driving shaft The torque of generation enables driving shaft to rotate synchronously with the first magnet；Produced by second magnet and iron plate II magnetic attracting Torque be greater than the torque that eccentric holding screw generates on driven shaft, so that driven shaft is rotated synchronously with the second magnet；When When the driving shaft rotates forward or backwards, it is able to drive driven shaft and rotates forward or backwards；Driven shaft is inhaled close to the second magnet The periphery for closing iron plate one end is equipped with the mounting groove arranged and be recessed inwardly around driven shaft, is arranged with fixation in the mounting groove Bearing holder (housing, cover) in sealing axle sleeve is fitted around what slot was arranged equipped with several between the installation groove sidewall and bearing holder (housing, cover) end face Ball.

In the technical program, the sealing axle sleeve of sealing magnetic transmission device can ensure be driven when sealing effect, first Magnet pass through respectively with driving shaft and the second magnet with driven shaft iron plate and bias holding screw connect into one can not be mutual The entirety of rotation is made between driving shaft and driven shaft due to the first magnet and the second magnet mutual attractive force through the first magnet Magnetic couple is generated with the second magnet, when driving shaft rotates forward or backwards, driven shaft can follow driving shaft forward direction or anti- To rotation, the function that magnetic seal transmission device is capable of positive and negative rotation is realized；The isolation part being arranged in sealing axle sleeve can be every From driving shaft and driven shaft, it is ensured that sealing performance of the driven shaft in rotation.Since driven shaft has biggish rub in rotation Power is wiped, the mounting groove combination ball being arranged on driven shaft is capable of forming end face bearing, can significantly reduce driven shaft rotation Frictional force, the transmission efficiency with higher while ensuring to seal transmission.

Preferred technical solution, additional technical feature are, are cased with and are fixed in sealing axle sleeve on the driving shaft Hole retaining ring.

In this way, hole is mounted in the inner hole of sealing axle sleeve the end face that can block rolling bearing outer ring, hole gear with retaining ring Circle is mounted in the inner hole of sealing axle sleeve and can block rolling bearing end face and play the role of axial limiting, prevents driving shaft from rotating When axial float, improve the stability of transmission.

Preferred technical solution, additional technical feature are, are equipped with admittedly on the outside of corresponding aperture retaining ring on the driving shaft The shaft block ring being scheduled on driving shaft.

In this way, shaft block ring is mounted on driving shaft the end face that can block rolling bearing inner ring, driving shaft can be prevented Axial movement is generated with bearing.

Preferred technical solution, additional technical feature are, are equipped with and are fixed between the driving shaft and the first magnet The iron plate I, the iron plate I of active axial end are equipped with the eccentric orfice I of installation iron plate I.

In this way, the first magnet can be attracted with the iron plate I with eccentric orfice I, it is equivalent on the first magnet and is drilled with eccentric orfice, it can To be inserted into the holding screw being mounted on driving shaft, prevent the first magnet from rotating relative to driving shaft.

Preferred technical solution, additional technical feature are, are equipped with and are fixed between the driven shaft and the second magnet The iron plate II, the iron plate II of driven axial end are equipped with the eccentric orfice II of installation iron plate II.

In this way, the second magnet can be attracted with the iron plate II with eccentric orfice II, it is equivalent on the second magnet and is drilled with eccentric orfice, The holding screw being mounted on driven shaft can be inserted, prevent the second magnet from rotating relative to driven shaft.

Preferred technical solution, additional technical feature are, are cased on the driven shaft and are fixed on sealing axle sleeve end Connecting flange, the connecting flange end face be equipped be fitted with O-ring seal.

Sealed gearing device is mounted on drive apparatus in this way, connecting flange can facilitate, O-ring seal can ensure that peace The leakproofness of dress.

Preferred technical solution, additional technical feature be, first magnet and iron plate I and the second magnet and iron plate II is separately fixed at driving shaft and driven axial end by sunk screw.

In this way, the first magnet and the second magnet can be separately mounted on driving shaft and driven shaft by sunk screw, by the Magnet and driving shaft and the second magnet and passive main shaft are linked to be an entirety respectively.

The beneficial effects of the utility model are: magnetic seal transmission device sealing magnetic transmission provided by the utility model The sealing axle sleeve of device can ensure that sealing effect when being driven, driving shaft and driven shaft pass through sealing shroud realization and attachment device Between be fully sealed, since the first magnet and the second magnet are mutually attracted and generate magnetic coupling, make driving shaft and driven shaft it Between transmission connection constituted by the first magnet and the second magnet, when driving shaft rotates forward or backwards, driven shaft can be followed Driving shaft rotates forward or backwards, and the mounting groove combination ball being arranged on driven shaft is capable of forming end face bearing, can be significant The frictional force for reducing driven shaft rotation, the transmission efficiency with higher while ensuring to seal transmission.The utility model structure Rationally, good separating effect；Practical value and promotional value with higher can be widely used in sealing transmission technical field In.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar Element or part are generally identified by similar appended drawing reference.In attached drawing, each element or part might not be according to actual ratios It draws.

Fig. 1 is the structural schematic diagram for the magnetic seal transmission device that an embodiment provides.

Fig. 2 is the perspective view for the magnetic seal transmission device that an embodiment provides.

Fig. 3 is the first iron plate perspective view of the magnetic seal transmission device that an embodiment provides.

Fig. 4 is the sealing axle sleeve scheme of installation 1 for the magnetic seal transmission device that an embodiment provides.

Fig. 5 is the sealing axle sleeve scheme of installation 2 for the magnetic seal transmission device that an embodiment provides.

Fig. 6 is the driving shaft perspective view for the magnetic seal transmission device that an embodiment provides.

Fig. 7 is the first iron plate scheme of installation of the magnetic seal transmission device that an embodiment provides.

Fig. 8 is the driven shaft perspective view for the magnetic seal transmission device that an embodiment provides.

Fig. 9 is the second iron plate scheme of installation of the magnetic seal transmission device that an embodiment provides.

Specific embodiment

Here, it is to be noted that, the utility model relates to function, method etc. be only the prior art conventional adaptation Using.Therefore, improvement of the utility model for the prior art, the connection relationship being substantially between hardware, rather than it is directed to function Can, although method itself namely the utility model be related to some functions, method, but and do not include and propose to function, method itself Improvement.Description of the utility model for function, method is in order to better illustrate the utility model, preferably to manage Solve the utility model.

Fig. 1 to Fig. 9 is please referred to, Fig. 1 is the structural schematic diagram for the magnetic seal transmission device that an embodiment provides；Fig. 2 is The perspective view for the magnetic seal transmission device that one embodiment provides；Fig. 3 is the magnetic seal transmission device that an embodiment provides First iron plate perspective view；Fig. 4 is the sealing axle sleeve scheme of installation 1 for the magnetic seal transmission device that an embodiment provides；Fig. 5 is The sealing axle sleeve scheme of installation 2 for the magnetic seal transmission device that one embodiment provides；Fig. 6 is that the magnetic force that an embodiment provides is close Seal the driving shaft perspective view of transmission device；Fig. 7 is that the first iron plate installation for the magnetic seal transmission device that an embodiment provides is shown It is intended to；Fig. 8 is the driven shaft perspective view for the magnetic seal transmission device that an embodiment provides；Fig. 9 is the magnetic that an embodiment provides Second iron plate scheme of installation of power sealed gearing device.In figure, the meaning that each appended drawing reference indicates is as follows；Driving shaft 1, partially Heart screw hole I 101, driven shaft 2, eccentric screwhole II201, the first magnet 3, the second magnet 4, iron plate I5, eccentric orfice I501, angular contact Ball bearing 6, hole retaining ring 7, shaft block ring 8, bearing holder (housing, cover) 9, ball 10, connecting flange 11, sunk screw 12, sealing axle sleeve 13, Isolation part 1301, iron plate II14, eccentric orfice II1401, holding screw 15.

As shown in Figures 1 to 9, in one embodiment, a kind of magnetic seal transmission device provided by the utility model, including Coaxially arranged driving shaft 1 and driven shaft 2, is also arranged with sealing axle sleeve 13 on driving shaft 1 and driven shaft 2, driving shaft 1 with it is driven The first magnet 3 and the second magnet 4 are respectively fixed on the opposite end face of axis 2；Since the first magnet 3 and the second magnet 4 are mutually inhaled Draw, make to generate magnetic couple by the first magnet 3 and the second magnet 4 between driving shaft 1 and driven shaft 2, when 1 forward direction of driving shaft or When rotating backward, driven shaft 2 can follow driving shaft 1 to rotate forward or backwards, the corresponding driving shaft 1 of sealing axle sleeve 13 and driven shaft It is equipped with the isolation part 1301 for separating driving shaft 1 and driven shaft 2 between 2, passes through the isolation of isolation part 1301, it can be ensured that driven shaft 2 sealing performance in rotation.In the present embodiment, driving shaft 1 use motor driven, driving shaft 1 far from driven shaft 2 one End, which is equipped with, is driven the interconnecting piece being connected with motor output shaft.Since driven shaft 2 has biggish frictional force, this implementation in rotation In example, the mounting groove arranged and be recessed inwardly around driven shaft 2 is equipped on the periphery of 4 one end of the second magnet in driven shaft 2, It is arranged with the bearing holder (housing, cover) 9 being fixed in sealing axle sleeve 13 in mounting groove, is set between 9 end face of the installation groove sidewall and bearing holder (housing, cover) There are several balls 10 for being fitted around slot arrangement.Installation groove sidewall combination ball 10 is capable of forming end face bearing, can significantly drop The frictional force that low driven shaft 2 rotates, the transmission efficiency with higher while ensuring to seal transmission.

As shown in Figure 1, being arranged with one on driving shaft 1 since driving shaft 1 has certain frictional force during rotation To the angular contact ball bearing 6 being arranged in sealing axle sleeve 13.Angular contact ball bearing 6 in order to facilitate the installation of, in sealing axle sleeve 13 The bearing installation step of setting installation angular contact ball bearing 6, enables the end face of rolling bearing 6 to control driving shaft 1 axial in hole Position.

As shown in Figure 1, angular contact ball bearing 6 moves in order to prevent, it is cased in 6 cycle surface of angular contact ball bearing solid The hole retaining ring 7 being scheduled in sealing axle sleeve 13.Hole retaining ring 7, which is mounted in the inner hole of sealing axle sleeve 13, can block angular contact ball 6 cycle surface of bearing, plays the role of axial limiting, axial float when preventing angular contact ball bearing 6, meanwhile, it is corresponding on driving shaft 1 Hole retaining ring 7 is ipsilateral equipped with the shaft block ring 8 being fixed on driving shaft 1.Shaft block ring 8 and hole retaining ring 7 are shared and can be played Axial limiting effect can prevent the axial float in rotation of driving shaft 1, improve the alignment and stable type of transmission.

As shown in Fig. 3 to Fig. 7, the iron plate I5 for being fixed on 1 end face of driving shaft is equipped between driving shaft 1 and the first magnet 3.Such as Shown in Fig. 6, the iron plate II14 for being fixed on 2 end face of driven shaft is equipped between driven shaft 2 and the second magnet 4, in iron plate I5 and iron plate Eccentric orfice I501 and eccentric orfice II1401 are respectively equipped on II14.Iron plate can be mutually attracted with magnet, and magnetic attraction makes iron Relative motion will not occur easily for piece and magnet, and the eccentric orfice on such iron plate is exactly the eccentric orfice on magnet, in the present embodiment Middle iron plate I5 and iron plate II14 is separately mounted to the end face of driving shaft 1 Yu driven shaft 2, iron plate II5 and iron by holding screw 15 Eccentric orfice I501 and eccentric orfice II1401 on piece II14 is respectively and set on driving shaft 1 and the eccentric screwhole on 2 end face of driven shaft I101 and eccentric screwhole II201 alignment, and loads onto holding screw 15, can prevent driving shaft 1 and the first magnet 3, driven shaft 2 and Second magnet 4 produces relative rotation.

As shown in Figure 1, being cased with the connecting flange 11 for being fixed on 13 end of sealing axle sleeve, the connecting flange on driven shaft 2 11 end faces are equipped with and are fitted with O-ring seal.Connecting flange 11, which can facilitate, is mounted on sealed gearing device in corresponding equipment, O-ring seal can ensure that the leakproofness of installation.

As shown in figure 9, the first magnet 3 and iron plate I5 is fixed on 1 end face of driving shaft by sunk screw 12, as shown in figure 5, Iron plate II14 and the second magnet 4 pass through sunk screw 12 and are fixed on 2 end face of driven shaft.Sunk screw 12 can be by the first magnet 3 It is connected with iron plate I5 with driving shaft 1, the second magnet 4 and iron plate II14 and driven shaft can be linked to be one by sunk screw 12 Body,

In the specification of the utility model, numerous specific details are set forth.It is to be appreciated, however, that the reality of the utility model Apply example can be to practice without these specific details.In some instances, be not been shown in detail well known method, System and technology, so as not to obscure the understanding of this specification.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, system, material or spy described in conjunction with this embodiment or example Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term It states and is necessarily directed to identical embodiment or example.Moreover, specific features, system, material or the feature of description can Can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, ability The technical staff in domain can be with by the spy of different embodiments or examples described in this specification and different embodiments or examples Sign is combined.

Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should Understand: it still can be to modify the technical solutions described in the foregoing embodiments, either to part of or complete Portion's technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical The range of novel each embodiment technical solution, should all cover and work as in the claim of the utility model and the range of specification In.

Claims (2)

1. a kind of magnetic seal transmission device, it is characterised in that: including coaxially arranged driving shaft (1) and driven shaft (2)；

It is also arranged with sealing axle sleeve (13) on the driving shaft (1) and driven shaft (2), the corresponding driving shaft of the sealing axle sleeve (13) (1) isolation part (1301) for separating driving shaft (1) and driven shaft (2) is equipped between driven shaft (2)；

The driven shaft (2) arranges and is recessed inwardly equipped with circular driven shaft (2) close to the periphery of the second magnet (4) one end Mounting groove is arranged with the bearing holder (housing, cover) (9) being fixed in sealing axle sleeve (13) in the mounting groove, in the installation groove sidewall and axis Several balls (10) for being fitted around slot arrangement are equipped between bearing sleeve (9) end face；

The first magnet (3) and the second magnet (4) are respectively fixed on the driving shaft (1) and driven shaft (2) opposite end face；Institute It states to be equipped between driving shaft (1) and the first magnet (3) and is fixed on driving shaft (1) end face and the iron plate with eccentric orfice I (501) I (5) is equipped between the driven shaft (2) and the second magnet (4) and is fixed on driven shaft (2) end face and has eccentric orfice II (1401) iron plate II (14)；

The eccentric screwhole I (101) and eccentric screwhole II having respectively on the driving shaft (1) and driven shaft (2) opposite end face (201), the eccentric screwhole I (101) and eccentric screwhole II (201) respectively with the eccentric orfice I (501) and iron plate on iron plate I (5) Eccentric orfice II (1401) on II (14) with one heart, eccentric screwhole I (101) on the driving shaft (1) with it is inclined on driven shaft (2) Heart screw hole II (201), which screws in, holding screw (15)；The eccentric orfice I (501) of the iron plate I (5) and iron plate II (14) and partially Heart hole II (1401) is threaded through on the holding screw (15) of driving shaft (1) and driven shaft (2)；First magnet (3) and iron plate I (5) the magnetic torque for being coupled generated torque and being greater than holding screw (15) generation eccentric on driving shaft (1), makes driving shaft (1) it can be rotated synchronously with the first magnet (3)；Torque caused by second magnet (4) and iron plate II (14) magnetic coupling Greater than the torque that holding screw (15) eccentric on driven shaft (2) generates, make driven shaft (2) can be synchronous with the second magnet (4) Rotation；Magnetic couple can be generated between first magnet (3) and the second magnet (4), when the driving shaft (1) turns forward or backwards When dynamic, it is able to drive driven shaft (2) and rotates forward or backwards；

The angular contact ball bearing (6) that a pair is arranged in sealing axle sleeve (13) is arranged on the driving shaft (1)；In sealing axle sleeve (13) there is the hole of fixed angular contact ball bearing (6) with retaining ring (7) in；

The shaft block ring (8) being fixed on driving shaft (1) is also cased on the driving shaft (1)；

The connecting flange (11) for being fixed on sealing axle sleeve (13) end, the connecting flange (11) are cased on the driven shaft (2) End face is equipped with and is fitted with O-ring seal.

2. a kind of magnetic seal transmission device according to claim 1, it is characterised in that:

First magnet (3) and the second magnet (4) pass through sunk screw (12) and are separately fixed at driving shaft (1) and driven shaft (2) end face.