Connecting structure of multi-pole magnetic ring and bushing for clamping

Abstract

The utility model discloses a connecting structure of a multi-pole magnetic ring and a clamping bush, which comprises a multi-pole magnetic ring sleeve, a clamping bush and a connecting component, the clamping bush is sleeved in the multi-pole magnetic ring sleeve, the connecting component is arranged at the end parts of the multi-pole magnetic ring sleeve and the clamping bush, a first clamping unit is arranged at the end part of the clamping bush, and a second clamping unit is arranged at the end part of the clamping bush. The first clamping unit is used for clamping and limiting the multi-pole magnetic ring sleeve, the second clamping unit is arranged at the end part of the multi-pole magnetic ring sleeve, the second clamping unit is in sliding clamping connection with the first clamping unit, and the injection molding sleeve is connected outside the second clamping unit and the first clamping unit in an injection molding manner. According to the utility model, the multi-pole magnetic ring sleeve, the clamping lining and the connecting assembly are used in a matched manner, and the first clamping unit and the second clamping unit can clamp and limit the multi-pole magnetic ring sleeve, so that the multi-pole magnetic ring sleeve has higher shearing torsion resistance and can resist the press-in force of a shaft during installation, and the risks of assembly and later use are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of multipolar magnetic ring, especially relates to a connecting structure of multipolar magnetic ring and clamping bushing. BACKGROUND

[0002] The multipolar magnetic ring is a kind of magnetic material with multiple magnetic poles distributed on a small ring, and is widely used in high-tech equipment such as motor and sensor, and the magnetization methods of the multipolar magnetic ring include axial magnetization, radial magnetization and radiation magnetization, different magnetization methods have different characteristics and application scenarios, for example, the magnetic poles of axial magnetization are evenly distributed, and the magnetic force is strong, which is often used in equipment requiring stable magnetic field and high magnetic force.

[0003] When installing the multi-stage magnetic ring, the multi-stage magnetic ring is usually directly sleeved on the outside of a shell or a shaft sleeve, so that when the multi-stage magnetic ring is subjected to torque or extrusion force, the multi-stage magnetic ring may rotate or slide, thereby reducing the stability of the multi-stage magnetic ring installation and use. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a connecting structure of multipolar magnetic ring and clamping bushing to solve the problems in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a connecting structure of multipolar magnetic ring and clamping bushing, comprising:

[0006] A multipolar magnetic ring sleeve;

[0007] A clamping bushing is sleeved in the interior of the multipolar magnetic ring sleeve;

[0008] A connecting assembly is arranged at the end of the multipolar magnetic ring sleeve and the clamping bushing, and the connecting assembly comprises:

[0009] A first clamping unit is arranged at the end of the clamping bushing, and the first clamping unit is used for clamping and limiting the multipolar magnetic ring sleeve;

[0010] A second clamping unit is arranged at the end of the multipolar magnetic ring sleeve, and the second clamping unit is slidably clamped with the first clamping unit;

[0011] An injection molding sleeve is injection molded on the exterior of the second clamping unit and the first clamping unit.

[0012] Preferably, the first clamping unit comprises:

[0013] A flange portion is formed by flanging the end of the clamping bushing, the flange portion is clamped at the end of the multipolar magnetic ring sleeve, and the flange portion is used for clamping and limiting the axial position of the multipolar magnetic ring sleeve.

[0014] Preferably, the first clamping unit further comprises:

[0015] A slot is arranged on the side of the flange part, the second clamping unit is clamped in the interior of the slot, and the slot limits the axial angle of the multi-pole magnetic ring sleeve through the second clamping unit.

[0016] Preferably, the first clamping unit further comprises:

[0017] A notch is arranged on the side of the flange part, the notch is arranged alternately with the slot, and the notch is used to increase the connection resistance between the flange part and the injection sleeve.

[0018] Preferably, the second clamping unit comprises:

[0019] A magnet boss is arranged in an annular array on the top of the multi-pole magnetic ring sleeve, and the magnet boss is clamped in the interior of the slot.

[0020] Preferably, the second clamping unit further comprises:

[0021] A groove is arranged on the top of the magnet boss.

[0022] A through hole is arranged on the side of the magnet boss, and the groove and the through hole are used to increase the connection resistance between the magnet boss and the injection sleeve.

[0023] The technical effects and advantages of the utility model are as follows:

[0024] The utility model discloses a multi-pole magnetic ring sleeve, clamping sleeve and connecting assembly cooperation mode, and the connecting assembly comprises a first clamping unit, a second clamping unit and an injection sleeve, the first clamping unit and the second clamping unit can clamp and limit the multi-pole magnetic ring sleeve, so that the multi-pole magnetic ring sleeve installation not only has strong shear torsional force ability and resistance to the compression force of the shaft, reduces the risk of assembly and later use, and through the design of proper boss circumference, also ensures the assembly coaxial degree of the multi-pole magnetic ring and the connecting assembly, and improves the use precision of the sensor. DRAWINGS

[0025] Figure 1 It is the overall structure schematic diagram of the utility model.

[0026] Figure 2 It is the overall structure schematic diagram of the utility model multi-pole magnetic ring sleeve and clamping sleeve assembly structure.

[0027] Figure 3 It is the overall structure schematic diagram of the utility model clamping sleeve.

[0028] Figure 4 It is the overall structure schematic diagram of the utility model multi-pole magnetic ring sleeve.

[0029] In the figure: 1, multi-pole magnetic ring cover; 2, clamping bushing; 3, connecting assembly; 31, first clamping unit; 311, flange portion; 312, slot; 313, notch; 32, second clamping unit; 321, magnet boss; 322, groove; 323, through hole; 33, injection molding cover. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] The utility model provides a kind of multi-pole magnetic ring and the connecting structure of clamping bushing as shown in Figures 1-4 Including multi-pole magnetic ring cover 1, clamping bushing 2 and connecting assembly 3, clamping bushing 2 is sleeved in the inside of multi-pole magnetic ring cover 1, connecting assembly 3 is arranged at the end of multi-pole magnetic ring cover 1 and clamping bushing 2, connecting assembly 3 includes first clamping unit 31, second clamping unit 32 and injection molding cover 33, first clamping unit 31 is arranged at the end of clamping bushing 2, first clamping unit 31 is used to limit the clamping of multi-pole magnetic ring cover 1, second clamping unit 32 is arranged at the end of multi-pole magnetic ring cover 1, second clamping unit 32 is slidably connected with first clamping unit 31, first clamping unit 31 and second clamping unit 32 can limit the clamping of multi-pole magnetic ring cover 1 outside clamping bushing 2, guarantee the stability of multi-pole magnetic ring cover 1 installation, and clamping bushing 2 can improve the axial length of multi-pole magnetic ring cover 1 installation, injection molding cover 33 is injection molded in the outside of second clamping unit 32 and first clamping unit 31, and injection molding cover 33 is injection molded outside first clamping unit 31 and second clamping unit 32 after the assembly of multi-pole magnetic ring cover 1 and clamping bushing 2, and first clamping unit 31, second clamping unit 32 and injection molding cover 33 are used to connect and install clamping bushing 2 and multi-pole magnetic ring cover 1, in the case of high-low temperature difference, it can reduce the extrusion and crack of multi-pole magnetic ring cover 1 connecting part due to the difference of expansion coefficient.

[0032] Further, the first clamping unit 31 comprises a turned-up portion 311 formed by turning up the end of the clamping bush 2, the turned-up portion 311 is clamped to the end of the multi-pole magnetic ring sleeve 1, and the turned-up portion 311 is used to limit the axial position of the multi-pole magnetic ring sleeve 1, under the action of the turned-up portion 311, the multi-pole magnetic ring sleeve 1 can be limited, and the multi-pole magnetic ring sleeve 1 is prevented from sliding out of one end of the clamping bush 2, and in the later installation, the other end of the clamping bush 2 is welded and installed, so as to ensure the stability of the installation of the multi-pole magnetic ring sleeve 1, the first clamping unit 31 further comprises a slot 312, the slot 312 is arranged on the side of the turned-up portion 311, the second clamping unit 32 is clamped in the slot 312, and the slot 312 limits the axial angle of the multi-pole magnetic ring sleeve 1 through the second clamping unit 32, that is, the multi-pole magnetic ring sleeve 1 is prevented from rotating relative to the clamping bush 2, and the first clamping unit 31 further comprises a notch 313, the notch 313 is arranged on the side of the turned-up portion 311, the notch 313 is arranged alternately with the slot 312, and the notch 313 is used to increase the connection resistance between the turned-up portion 311 and the injection molding sleeve 33, so as to improve the stability of the connection between the injection molding sleeve 33 and the turned-up portion 311.

[0033] Further, the second clamping unit 32 comprises a magnet boss 321, the magnet boss 321 is arranged in an annular array on the top of the multi-pole magnetic ring sleeve 1, the magnet boss 321 is clamped in the slot 312, the number of the magnet boss 321 corresponds to the number of the slot 312, the magnet boss 321 is clamped in the slot 312, and the multi-pole magnetic ring sleeve 1 is prevented from rotating relative to the clamping bush 2, the second clamping unit 32 further comprises a groove 322 and a through hole 323, the groove 322 is arranged on the top of the magnet boss 321, and the through hole 323 is arranged on the side of the magnet boss 321, the groove 322 and the through hole 323 are used to increase the connection resistance between the magnet boss 321 and the injection molding sleeve 33, so as to improve the stability of the injection molding sleeve 33 injected on the outside of the magnet boss 321 and reduce the situation that the injection molding sleeve 33 is forced to fall off.

[0034] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A connection structure between a multipole magnetic ring and a clamping bushing, characterized in that, The utility model relates to a multi-pole magnetic ring sleeve (1) is provided with a clamping sleeve (2) and a connecting assembly (3), the clamping sleeve (2) is sleeved in the inside of the multi-pole magnetic ring sleeve (1), the connecting assembly (3) is arranged at the end of the multi-pole magnetic ring sleeve (1) and the clamping sleeve (2), and the connecting assembly (3) comprises a first clamping unit (31), a second clamping unit (32) and an injection molding sleeve (33). The utility model relates to a multi-pole magnetic ring sleeve (1) is provided with a clamping sleeve (2) and a connecting assembly (3), the clamping sleeve (2) is sleeved in the inside of the multi-pole magnetic ring sleeve (1), the connecting assembly (3) is arranged at the end of the multi-pole magnetic ring sleeve (1) and the clamping sleeve (2), and the connecting assembly (3) comprises a first clamping unit (31), a second clamping unit (32) and an injection molding sleeve (33). The utility model relates to a multi-pole magnetic ring sleeve (1) is provided with a clamping sleeve (2) and a connecting assembly (3), the clamping sleeve (2) is sleeved in the inside of the multi-pole magnetic ring sleeve (1), the connecting assembly (3) is arranged at the end of the multi-pole magnetic ring sleeve (1) and the clamping sleeve (2), and the connecting assembly (3) comprises a first clamping unit (31), a second clamping unit (32) and an injection molding sleeve (33). The utility model relates to a multi-pole magnetic ring sleeve (1) is provided with a clamping sleeve (2) and a connecting assembly (3), the clamping sleeve (2) is sleeved in the inside of the multi-pole magnetic ring sleeve (1), the connecting assembly (3) is arranged at the end of the multi-pole magnetic ring sleeve (1) and the clamping sleeve (2), and the connecting assembly (3) comprises a first clamping unit (31), a second clamping unit (32) and an injection molding sleeve (33). The utility model relates to a multi-pole magnetic ring sleeve (1) is provided with a clamping sleeve (2) and a connecting assembly (3), the clamping sleeve (2) is sleeved in the inside of the multi-pole magnetic ring sleeve (1), the connecting assembly (3) is arranged at the end of the multi-pole magnetic ring sleeve (1) and the clamping sleeve (2), and the connecting assembly (3) comprises a first clamping unit (31), a second clamping unit (32) and an injection molding sleeve (33). The utility model relates to a multi-pole magnetic ring sleeve (1) is provided with a clamping sleeve (2) and a connecting assembly (3), the clamping sleeve (2) is sleeved in the inside of the multi-pole magnetic ring sleeve (1), the connecting assembly (3) is arranged at the end of the multi-pole magnetic ring sleeve (1) and the clamping sleeve (2), and the connecting assembly (3) comprises a first clamping unit (31), a second clamping unit (32) and an injection molding sleeve (33). The utility model relates to a multi-pole magnetic ring sleeve (1) is provided with a clamping sleeve (2) and a connecting assembly (3), the clamping sleeve (2) is sleeved in the inside of the multi-pole magnetic ring sleeve (1), the connecting assembly (3) is arranged at the end of the multi-pole magnetic ring sleeve (1) and the clamping sleeve (2), and the connecting assembly (3) comprises a first clamping unit (31), a second clamping unit (32) and an injection molding sleeve (33).

2. The connection structure of a multi-pole magnetic ring and a clamping bushing according to claim 1, characterized in that, The utility model relates to a multi-pole magnetic ring sleeve (1) is provided with a clamping sleeve (2) and a connecting assembly (3), the clamping sleeve (2) is sleeved in the inside of the multi-pole magnetic ring sleeve (1), the connecting assembly (3) is arranged at the end of the multi-pole magnetic ring sleeve (1) and the clamping sleeve (2), and the connecting assembly (3) comprises a first clamping unit (31), a second clamping unit (32) and an injection molding sleeve (33). The utility model relates to a multi-pole magnetic ring sleeve (1) is provided with a clamping sleeve (2) and a connecting assembly (3), the clamping sleeve (2) is sleeved in the inside of the multi-pole magnetic ring sleeve (1), the connecting assembly (3) is arranged at the end of the multi-pole magnetic ring sleeve (1) and the clamping sleeve (2), and the connecting assembly (3) comprises a first clamping unit (31), a second clamping unit (32) and an injection molding sleeve (33).

3. The connection structure of a multi-pole magnetic ring and a clamping bushing according to claim 1, characterized in that, The utility model relates to a multi-pole magnetic ring sleeve (1) is provided with a clamping sleeve (2) and a connecting assembly (3), the clamping sleeve (2) is sleeved in the inside of the multi-pole magnetic ring sleeve (1), the connecting assembly (3) is arranged at the end of the multi-pole magnetic ring sleeve (1) and the clamping sleeve (2), and the connecting assembly (3) comprises a first clamping unit (31), a second clamping unit (32) and an injection molding sleeve (33). The utility model relates to a multi-pole magnetic ring sleeve (1) is provided with a clamping sleeve (2) and a connecting assembly (3), the clamping sleeve (2) is sleeved in the inside of the multi-pole magnetic ring sleeve (1), the connecting assembly (3) is arranged at the end of the multi-pole magnetic ring sleeve (1) and the clamping sleeve (2), and the connecting assembly (3) comprises a first clamping unit (31), a second clamping unit (32) and an injection molding sleeve (33).

4. The connection structure of a multi-pole magnetic ring and a clamping bushing according to claim 3, characterized in that, The utility model relates to a multi-pole magnetic ring sleeve (1) is provided with a clamping sleeve (2) and a connecting assembly (3), the clamping sleeve (2) is sleeved in the inside of the multi-pole magnetic ring sleeve (1), the connecting assembly (3) is arranged at the end of the multi-pole magnetic ring sleeve (1) and the clamping sleeve (2), and the connecting assembly (3) comprises a first clamping unit (31), a second clamping unit (32) and an injection molding sleeve (33). The utility model relates to a multi-pole magnetic ring sleeve (1) is provided with a clamping sleeve (2) and a connecting assembly (3), the clamping sleeve (2) is sleeved in the inside of the multi-pole magnetic ring sleeve (1), the connecting assembly (3) is arranged at the end of the multi-pole magnetic ring sleeve (1) and the clamping sleeve (2), and the connecting assembly (3) comprises a first clamping unit (31), a second clamping unit (32) and an injection molding sleeve (33).

5. The connection structure of a multi-pole magnetic ring and a clamping bushing according to claim 3, characterized in that, The utility model relates to a multi-pole magnetic ring sleeve (1) is provided with a clamping sleeve (2) and a connecting assembly (3), the clamping sleeve (2) is sleeved in the inside of the multi-pole magnetic ring sleeve (1), the connecting assembly (3) is arranged at the end of the multi-pole magnetic ring sleeve (1) and the clamping sleeve (2), and the connecting assembly (3) comprises a first clamping unit (31), a second clamping unit (32) and an injection molding sleeve (33). The utility model relates to a multi-pole magnetic ring sleeve (1) is provided with a clamping sleeve (2) and a connecting assembly (3), the clamping sleeve (2) is sleeved in the inside of the multi-pole magnetic ring sleeve (1), the connecting assembly (3) is arranged at the end of the multi-pole magnetic ring sleeve (1) and the clamping sleeve (2), and the connecting assembly (3) comprises a first clamping unit (31), a second clamping unit (32) and an injection molding sleeve (33).

6. The connection structure of a multi-pole magnetic ring and a clamping bushing according to claim 1, characterized in that, The utility model relates to a multi-pole magnetic ring sleeve (1) is provided with a clamping sleeve (2) and a connecting assembly (3), the clamping sleeve (2) is sleeved in the inside of the multi-pole magnetic ring sleeve (1), the connecting assembly (3) is arranged at the end of the multi-pole magnetic ring sleeve (1) and the clamping sleeve (2), and the connecting assembly (3) comprises a first clamping unit (31), a second clamping unit (32) and an injection molding sleeve (33). The utility model relates to a multi-pole magnetic ring sleeve (1) is provided with a clamping sleeve (2) and a connecting assembly (3), the clamping sleeve (2) is sleeved in the inside of the multi-pole magnetic ring sleeve (1), the connecting assembly (3) is arranged at the end of the multi-pole magnetic ring sleeve (1) and the clamping sleeve (2), and the connecting assembly (3) comprises a first clamping unit (31), a second clamping unit (32) and an injection molding sleeve (33). The utility model relates to a multi-pole magnetic ring sleeve (1) is provided with a clamping sleeve (2) and a connecting assembly (3), the clamping sleeve (2) is sleeved

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