CN219938180U - Magnetic transmission rotating speed feedback device - Google Patents

Magnetic transmission rotating speed feedback device Download PDF

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Publication number
CN219938180U
CN219938180U CN202321356692.4U CN202321356692U CN219938180U CN 219938180 U CN219938180 U CN 219938180U CN 202321356692 U CN202321356692 U CN 202321356692U CN 219938180 U CN219938180 U CN 219938180U
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China
Prior art keywords
poles
magnet
connecting piece
feedback device
rotating shaft
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CN202321356692.4U
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Chinese (zh)
Inventor
车轸旭
张宇亮
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Joymed Technology (shanghai) Ltd
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Joymed Technology (shanghai) Ltd
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Abstract

The utility model relates to the technical field of magnetic transmission, in particular to a magnetic transmission rotating speed feedback device; the device comprises a driving rotating shaft, a driven rotating shaft and a connecting piece, wherein the connecting piece is connected with the driving rotating shaft through a screw, the driven rotating shaft stretches into the connecting piece to be arranged inside, an outer magnet part is arranged in the connecting piece in an embedded manner, an inner magnet part is arranged on the outer wall of the driven rotating shaft, and the outer magnet part is positioned on the outer side of the inner magnet part; the connecting piece can be dismantled with initiative pivot through the screw and be connected, and the inside embedded outer magnet part that sets up of connecting piece, driven pivot stretch into the inside setting of connecting piece, and driven pivot outer wall cover is established interior magnet part, and outer magnet part is located interior magnet part outside, through changing not unidimensional connecting piece, can be convenient for change outer magnet part and interior magnet part interval to be convenient for change the effort that magnetic drive produced.

Description

Magnetic transmission rotating speed feedback device
Technical Field
The utility model relates to the technical field of magnetic transmission, in particular to a magnetic transmission rotating speed feedback device.
Background
The magnetic transmission technology is a technology for transmitting power and torque by using magnetic force lines, and compared with the traditional mechanical transmission mode, the magnetic transmission technology has the advantages of no contact, no friction, no leakage, no noise, high efficiency, simple maintenance and the like, so that the magnetic transmission technology is widely applied in certain specific fields.
The prior art CN203798815U discloses a magnetic coupling transmission device for a non-contact magnetic transmission type locomotive rotation speed sensor, which comprises a magnet support, a driving magnet part and a driven magnet part, wherein the magnet support is arranged on a locomotive wheel shaft, the driving magnet part is arranged on the magnet support, a speed detection device is arranged on the outer cover of the locomotive axle box, the speed detection device comprises a rotating shaft and a photointerrupter, the rotating shaft stretches into the driving magnet part and the driven magnet part is sleeved on the outer wall of the stretching part, the driving magnet part and the driven magnet part form a magnetic coupling structure, the locomotive wheel shaft rotates to drive the driving magnet part to rotate, the driving magnet part rotates to form a rotating magnetic field, the driven magnet part is driven to rotate, the speed of the rotating shaft is detected by the speed detection device, so that the rotation speed of the locomotive wheel shaft is obtained, but the magnet support is fixedly arranged on the locomotive wheel shaft, and if the acting force between the driving magnet part and the driven magnet part is adjusted in order to adjust the thickness of the driving magnet part or the gap between the driving magnet part and the driven magnet part in later period, the problem of inconvenient disassembly can exist.
Therefore, it is desirable to provide a magnetic transmission rotation speed feedback device, which is convenient for adjusting the acting force generated by magnetic transmission compared with the prior art.
Disclosure of Invention
In order to solve the problems, the utility model provides a magnetic transmission rotating speed feedback device.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a magnetic drive rotational speed feedback device, includes initiative pivot, driven pivot and connecting piece, the connecting piece with the initiative pivot passes through screw connection, driven pivot stretches into the inside setting of connecting piece, the connecting piece is embedded to set up outer magnet part, driven pivot outer wall is equipped with interior magnet part, outer magnet part is located the interior magnet part outside.
Further, the connecting piece is provided with a first mounting groove and a second mounting groove, the driving rotating shaft is arranged in the first mounting groove, the outer magnet component is arranged in the second mounting groove in an embedded mode, and the driven rotating shaft stretches into the second mounting groove to be arranged in the second mounting groove.
Still further, the connecting piece lateral wall is equipped with the screw hole, initiative pivot outer wall also is equipped with the screw hole, the screw hole that the connecting piece lateral wall set up with the screw hole that initiative pivot outer wall set up corresponds the setting.
Furthermore, the connecting piece adopts a shaft sleeve.
Further, the screw is a set screw.
Further, the outer magnet member and the inner magnet member are both provided in a ring shape.
Still further, the outer magnet part includes a plurality of outer magnet N poles and a plurality of outer magnet S poles, outer magnet N poles with outer magnet S poles enclose into the annular, outer magnet N poles with outer magnet S poles crisscross setting and the position corresponds the setting.
Still further, the inner magnet part includes a plurality of inner magnet N poles and a plurality of inner magnet S poles, inner magnet N poles with inner magnet S poles enclose into the annular, inner magnet N poles with inner magnet S poles crisscross setting and the position corresponds the setting.
Further, the number of the inner magnet N poles is the same as the number of the outer magnet S poles, and the number of the inner magnet S poles is the same as the number of the outer magnet N poles.
Further, the driving rotating shaft is connected with a driving piece, and the driving piece is used for controlling the driving rotating shaft to rotate.
Compared with the prior art, the utility model has the beneficial effects that:
(1) According to the utility model, the connecting piece is detachably connected with the driving rotating shaft through the screw, the outer magnet component is embedded in the connecting piece, the driven rotating shaft stretches into the connecting piece to be arranged, the inner magnet component is sleeved on the outer wall of the driven rotating shaft, the outer magnet component is positioned on the outer side of the inner magnet component, and the distance between the outer magnet component and the inner magnet component can be conveniently changed by changing the connecting pieces with different sizes, so that the acting force generated by magnetic transmission can be conveniently changed.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a cross-sectional view showing an internal structure of the present utility model.
Fig. 3 is a cross-sectional view at A-A in fig. 2.
Fig. 4 is a cross-sectional view at B-B in fig. 2.
Reference numerals illustrate:
1. a driving rotating shaft; 2. a driven rotating shaft; 3. a shaft sleeve; 4. a speed measuring piece; 5. a set screw; 6. an inner magnet N pole; 7. an inner magnet S pole; 8. an outer magnet N pole; 9. and an outer magnet S pole.
Detailed Description
The technical solutions of the present utility model will be clearly described below with reference to the accompanying drawings, and it is obvious that the described embodiments are not all embodiments of the present utility model, and all other embodiments obtained by a person skilled in the art without making any inventive effort are within the scope of protection of the present utility model. It should be noted that, the positional or positional relationship indicated by the terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
As shown in fig. 1 and 2, the utility model provides a magnetic transmission rotating speed feedback device, which comprises a driving rotating shaft 1, a driven rotating shaft 2, a connecting piece and a speed measuring piece 4, wherein one end of the driving rotating shaft 1 is connected with a driving piece, the other end of the driving rotating shaft 1 is detachably provided with the connecting piece, the driven rotating shaft 2 can extend into the connecting piece, and the driving rotating shaft 1 and the driven rotating shaft 2 are respectively arranged at the left end and the right end of the connecting piece.
The connecting piece is connected to the driving rotating shaft 1 through a screw, the screw adopts a set screw 5, and the set screw 5 is screwed, so that the connecting piece can be fixed on the driving rotating shaft 1, the synchronous rotation of the driving rotating shaft 1 and the connecting piece is kept, and meanwhile, the connecting piece is convenient to detach and replace; the connecting piece preferably adopts axle sleeve 3, be equipped with the screw hole on the initiative pivot 1 outer wall, also be equipped with the screw hole on the axle sleeve 3 lateral wall, the screw hole that axle sleeve 3 lateral wall set up corresponds the setting with the screw hole that initiative pivot 1 outer wall set up, axle sleeve 3 both ends all are equipped with the mounting groove, be first mounting groove and second mounting groove respectively, initiative pivot 1 sets up inside first mounting groove, the second mounting groove inner wall is equipped with outer magnet part, outer magnet part is embedded to be set up on second mounting groove inner wall, driven pivot 2 one end stretches into inside the second mounting groove, driven pivot 2 stretches into the outer wall cover of the inside one end of second mounting groove and establishes inner magnet part.
The driving piece is used for driving the driving rotating shaft 1 to rotate, the driving piece is also used for feeding back the rotating speed signal of the driving rotating shaft 1, the speed measuring piece 4 is correspondingly arranged with the inner magnet part, and the speed measuring piece 4 is used for feeding back the rotating speed signal of the driven rotating shaft 2.
As shown in fig. 3 and 4, the outer magnet member includes a plurality of outer magnet N poles 8 and a plurality of outer magnet S poles 9, each outer magnet N pole 8, each outer magnet S pole 9 are embedded inside the sleeve 3, the plurality of outer magnet N poles 8 and the plurality of outer magnet S poles 9 enclose a circular ring, the outer magnet N poles 8 and the outer magnet S poles 9 are staggered, and the positions of the outer magnet N poles 8 and the outer magnet S poles 9 are set opposite to each other, and the outer magnet N poles 8 and the outer magnet S poles are preferably set two.
The inner magnet part comprises a plurality of inner magnet N poles 6, a plurality of inner magnet S poles 7 and a shell, wherein the shell is in a cylinder shape, the inner wall of the shell is fixedly connected with the inner magnet N poles 6 and the inner magnet S poles 7, the plurality of inner magnet N poles 6 and the plurality of inner magnet S poles 7 are enclosed into a circular ring, the inner magnet N poles 6 and the inner magnet S poles 7 are arranged in a staggered mode, the positions of the inner magnet N poles 6 and the inner magnet S poles 7 are arranged oppositely, and the number of the inner magnet N poles 6 and the inner magnet S poles 7 is preferably two.
The number of inner magnet N poles 6 is the same as the number of outer magnet S poles 9, and the number of inner magnet S poles 7 is the same as the number of outer magnet N poles 8.
The utility model provides a working principle of a magnetic transmission rotating speed feedback device, which comprises the following steps: the outer magnet component is arranged in a second mounting groove of the connecting piece, the driving rotating shaft 1 stretches into the first mounting groove of the connecting piece, a threaded hole formed in the driving rotating shaft 1 corresponds to the threaded hole formed in the connecting piece, the fastening screw 5 is screwed, the connecting piece and the driving rotating shaft 1 are fixed, after the driven rotating shaft 2 is placed in the connecting piece, the inner magnet S pole 7 and the outer magnet N pole 8 generate magnetic force, the inner magnet N pole 6 and the outer magnet S pole 9 generate magnetic force, the motor is started to drive the driving rotating shaft 1 to rotate, the driving rotating shaft 1 obtains torque to drive the outer magnet N pole 8 and the outer magnet S pole 9 embedded in the connecting piece to rotate, at the moment, a rotating magnetic field is formed in the shaft sleeve 3, the driven rotating shaft 2 is driven to rotate together under the influence of the rotating magnetic field, and the speed measuring piece 4 can feed back the speed signal of the driven rotating shaft 2 after the driven rotating shaft 2 rotates; when the acting force between the inner magnet part and the outer magnet part needs to be changed, the connection piece with the corresponding size can be replaced.
The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the scope of the technical solution of the present utility model, which is intended to be covered by the claims of the present utility model.

Claims (10)

1. The utility model provides a magnetic transmission rotational speed feedback device, its characterized in that, includes initiative pivot, driven pivot and connecting piece, the connecting piece with the initiative pivot passes through screw connection, driven pivot stretches into the inside setting of connecting piece, the embedded outer magnet part that sets up of connecting piece, driven pivot outer wall is equipped with interior magnet part, outer magnet part is located interior magnet part outside.
2. The magnetic transmission rotating speed feedback device according to claim 1, wherein the connecting piece is provided with a first mounting groove and a second mounting groove, the driving rotating shaft is arranged in the first mounting groove, the outer magnet component is arranged in the second mounting groove in an embedded mode, and the driven rotating shaft extends into the second mounting groove.
3. The magnetic transmission rotating speed feedback device according to claim 2, wherein the side wall of the connecting piece is provided with a threaded hole, the outer wall of the driving rotating shaft is also provided with a threaded hole, and the threaded hole formed in the side wall of the connecting piece is arranged corresponding to the threaded hole formed in the outer wall of the driving rotating shaft.
4. A magnetic drive speed feedback device according to any of claims 1-3, wherein the coupling member is a sleeve.
5. A magnetically driven rotational speed feedback device in accordance with claim 1 wherein said screw is a set screw.
6. A magnetically geared rotational speed feedback device as claimed in claim 1, wherein the outer magnet member and the inner magnet member are each annular.
7. The magnetic transmission rotation speed feedback device according to claim 6, wherein the outer magnet member comprises a plurality of outer magnet N poles and a plurality of outer magnet S poles, the outer magnet N poles and the outer magnet S poles are formed in a ring shape, and the outer magnet N poles and the outer magnet S poles are arranged in a staggered manner and are arranged in a corresponding position.
8. The magnetic transmission rotation speed feedback device according to claim 7, wherein the inner magnet part comprises a plurality of inner magnet N poles and a plurality of inner magnet S poles, the inner magnet N poles and the inner magnet S poles are surrounded to form a ring shape, and the inner magnet N poles and the inner magnet S poles are staggered and arranged correspondingly.
9. The magnetically driven rotational speed feedback device of claim 8 wherein the number of inner magnet N poles is the same as the number of outer magnet S poles and the number of inner magnet S poles is the same as the number of outer magnet N poles.
10. The magnetic transmission rotational speed feedback device according to claim 1, wherein the driving shaft is connected to a driving member, and the driving member is configured to control the rotation of the driving shaft.
CN202321356692.4U 2023-05-30 2023-05-30 Magnetic transmission rotating speed feedback device Active CN219938180U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321356692.4U CN219938180U (en) 2023-05-30 2023-05-30 Magnetic transmission rotating speed feedback device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321356692.4U CN219938180U (en) 2023-05-30 2023-05-30 Magnetic transmission rotating speed feedback device

Publications (1)

Publication Number Publication Date
CN219938180U true CN219938180U (en) 2023-10-31

Family

ID=88487700

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321356692.4U Active CN219938180U (en) 2023-05-30 2023-05-30 Magnetic transmission rotating speed feedback device

Country Status (1)

Country Link
CN (1) CN219938180U (en)

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