Outer magnetic steel assembly of magnetic drive pump

Abstract

The utility model relates to the technical field of magnetic pumps, in particular to an outer magnetic steel assembly of a magnetic pump, which comprises a sleeve, one side of the sleeve is connected with an end shaft, one end of the sleeve far away from the end shaft is provided with a plurality of inserting holes which are annularly distributed at equal intervals, and magnetic steel is inserted in the inserting holes in a sliding mode. An end ring attached to the end of the magnetic steel is fixed to one end of the sleeve, locking mechanisms which are annularly distributed at equal intervals are installed on the circumferential side wall of the end ring, limiting holes matched with the locking mechanisms in a clamped mode are formed in the edge of the circumferential outer wall of the sleeve, and each locking mechanism comprises an inner groove formed in the side wall of the end ring. According to the utility model, the lifting block can be driven by the elastic supporting piece to move towards the limiting hole along the inner wall of the inner groove until the limiting block moves into the limiting hole, so that the end ring is automatically locked, and the magnetic steel can be quickly disassembled, assembled and maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic pumps, in particular to an external magnetic steel assembly of a magnetic pump. Background Art

[0002] The magnetic pump is mainly composed of three parts: pump, magnetic transmission and motor. The key component, magnetic transmission, consists of an outer magnetic rotor, an inner magnetic rotor and a non-magnetic isolation sleeve. When the motor drives the outer magnetic rotor to rotate, the magnetic field can penetrate the air gap and non-magnetic materials, driving the inner magnetic rotor connected to the impeller to rotate synchronously, realizing contactless transmission of power. As one of the core components, the outer magnetic rotor is usually composed of a magnetic cylinder and a magnetic steel.

[0003] However, the existing external magnetic assembly has some problems during use. For example, the magnetic steel will be demagnetized due to the high temperature environment, and the demagnetized magnetic steel needs to be replaced. The existing magnetic steel is fixed on the base, which is not convenient for rapid disassembly and assembly of the magnetic steel. Utility Model Content

[0004] The purpose of the utility model is to provide an external magnetic steel assembly of a magnetic pump to solve the problems raised in the above background technology.

[0005] The technical solution of the utility model is: an outer magnetic steel assembly of a magnetic pump, comprising a sleeve, one side of the sleeve is connected to an end shaft, and the end of the sleeve away from the end shaft is provided with a plurality of equidistant annularly distributed jacks, a magnetic steel is slidably inserted in the jack, one end of the sleeve is fixed with an end ring that fits the end head of the magnetic steel, and a locking mechanism distributed in annularly and equidistantly is installed on the circumferential side wall of the end ring, and a limiting hole that is snap-fitted with the locking mechanism is opened at the edge of the circumferential outer wall of the sleeve, and the locking mechanism includes an inner groove opened on the side wall of the end ring, a lifting block is slidably installed in the inner groove, a limiting block extending to the outside of the end ring is fixed on the top of the lifting block, and an inclined surface is opened on the side of the limit block close to the sleeve, and an elastic support is fixed between the bottom of the lifting block and the inner wall of the bottom of the inner groove.

[0006] The effect achieved by the above-mentioned components is: the sleeve can be connected to the output shaft of the output motor through the end shaft, wherein the magnetic steel can be evenly inserted in the socket provided in the sleeve in sequence, and then the end ring is pressed inside the end side of the sleeve, and the edge of the inner wall of the end side of the sleeve is used to squeeze the inclined surface, so that the limit block drives the lifting block to move toward the elastic support part at the bottom of the inner groove and compress it, until the end ring and the end side of the magnetic steel are tightly pressed, the elastic support part drives the lifting block to move along the inner wall of the inner groove toward the limit hole, until the limit block moves into the limit hole, and the end ring is automatically locked, thereby completing the positioning and locking purpose of the magnetic steel. If the magnetic steel needs to be maintained, it is only necessary to press the limit block until it is out of the limit hole to release the limiting effect of the limit hole on the end ring. After removing the end ring, the magnetic steel is exposed, which is convenient for quick disassembly and maintenance of the magnetic steel.

[0007] Preferably, the elastic support member includes a spring arranged in the inner groove, and connecting columns connected to the outer wall of the bottom of the lifting block and the inner wall of the bottom of the inner groove are fixed at both ends of the spring.

[0008] The effect achieved by the above components is that the spring can cooperate with the connecting column to elastically support the lifting block and the limit block, so that the limit block can be lifted and reset easily.

[0009] Preferably, an end groove is provided on one side of the sleeve close to the end shaft, an end block connected to the end shaft is embedded in the end groove, and a connecting flange bolted to the end wall of the sleeve is sleeved on the outer wall of the end shaft.

[0010] The effect achieved by the above components is: the end block connected to the end shaft can be easily fitted through the end groove, and then the end shaft and the end block are fixed to the outside of the sleeve by the connecting flange, which is convenient for disassembly and maintenance.

[0011] Preferably, a limiting protrusion is provided on the side wall of the end block, and a limiting groove adapted to the limiting protrusion is opened on the inner side wall of the end groove.

[0012] The effect achieved by the above components is that the limiting protrusion can cooperate with the limiting slot to avoid sliding dislocation between the end block and the end slot.

[0013] Preferably, an extension convex ring is provided on one side of the end ring close to the sleeve, and an annular groove which fits with the extension convex ring is provided on the inner edge of the sleeve.

[0014] The effect achieved by the above components is: the extended convex ring can cooperate with the annular groove to increase the contact area between the end ring and the sleeve, thereby improving the sealing effect.

[0015] The utility model provides an outer magnetic steel assembly of a magnetic pump through improvement, which has the following improvements and advantages compared with the prior art:

[0016] The utility model presses the end ring inside the end side of the sleeve, and uses the edge of the inner wall of the end side of the sleeve to extrude the inclined surface, so that the limit block drives the lifting block to move toward the elastic support part at the bottom end of the inner groove and compresses it, until the end ring and the end side surface of the magnetic steel are tightly abutted, and the elastic support part drives the lifting block to move along the inner wall of the inner groove toward the limit hole, until the limit block moves into the limit hole, and the end ring is automatically locked to complete the positioning and locking purpose of the magnetic steel. If the magnetic steel needs to be maintained, it is only necessary to press the limit block until it is out of the limit hole to release the limiting effect of the limit hole on the end ring. After the end ring is removed, the magnetic steel is exposed, which is convenient for quick disassembly and maintenance of the magnetic steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from a first perspective;

[0019] Figure 2 It is a schematic diagram of the third perspective structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the assembly structure of the middle end ring of the utility model;

[0021] Figure 4 It is a schematic diagram of the assembly structure of the middle end shaft of the utility model;

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the locking mechanism in the utility model.

[0023] Description of reference numerals:

[0024] 1. Sleeve; 2. End shaft; 3. End ring; 4. Connecting flange; 5. Limit hole; 6. Locking mechanism; 61. Inner groove; 62. Lifting block; 63. Limit block; 64. Inclined surface; 65. Spring; 66. Connecting column; 7. Magnet; 8. End groove; 9. End block. DETAILED DESCRIPTION

[0025] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides an outer magnetic steel assembly of a magnetic pump through improvement. The technical solution of the utility model is:

[0027] In the embodiment of the present utility model, Figure 1-Figure 5 As shown, an outer magnetic steel assembly of a magnetic pump includes a sleeve 1, one side of the sleeve 1 is connected to an end shaft 2, the end of the sleeve 1 away from the end shaft 2 is provided with a plurality of equally spaced annular jacks, a magnetic steel 7 is slidably inserted into the jack, an end ring 3 that fits the end of the magnetic steel 7 is fixed to one end of the sleeve 1, an extended convex ring is provided on the side of the end ring 3 close to the sleeve 1, an annular groove that fits the extended convex ring is provided on the inner edge of the sleeve 1, and an annular distribution ring equidistant from the circumferential side wall of the end ring 3 is installed. The locking mechanism 6 of the cloth, the edge of the outer wall of the sleeve 1 is provided with a limiting hole 5 which is engaged with the locking mechanism 6, the locking mechanism 6 includes an inner groove 61 provided on the side wall of the end ring 3, a lifting block 62 is slidably installed in the inner groove 61, a limiting block 63 extending to the outside of the end ring 3 is fixed on the top of the lifting block 62, a slope 64 is provided on the side of the limiting block 63 close to the sleeve 1, an elastic support is fixed between the bottom of the lifting block 62 and the inner wall of the bottom of the inner groove 61, and the elastic The support member includes a spring 65 arranged in the inner groove 61, and connecting columns 66 connected to the outer wall of the bottom of the lifting block 62 and the inner wall of the bottom of the inner groove 61 are fixed at both ends of the spring 65, pressing the end ring 3 inside the end side of the sleeve 1, and using the edge of the inner wall of the end side of the sleeve 1 to squeeze the inclined surface 64, so that the limit block 63 drives the lifting block 62 to move in the direction of the elastic support member at the bottom end of the inner groove 61 and compresses it, until the end ring 3 and the end side surface of the magnetic steel 7 are tightly abutted, and the elastic support member drives the lifting block 62 to move along the inner wall of the inner groove 61 toward the limit hole 5 until the limit block 63 moves into the limit hole 5, automatically locking the end ring 3, and completing the positioning and locking purpose of the magnetic steel 7. If maintenance of the magnetic steel 7 is required, it is only necessary to press the limit block 63 until it is out of the limit hole 5, thereby releasing the limiting effect of the limit hole 5 on the end ring 3. After removing the end ring 3, the magnetic steel 7 is exposed, which is convenient for quick disassembly and maintenance of the magnetic steel 7.

[0028] In an embodiment of the utility model, an end groove 8 is provided on one side of the sleeve 1 close to the end shaft 2, and an end block 9 connected to the end shaft 2 is embedded in the end groove 8. The outer wall of the end shaft 2 is provided with a connecting flange 4 bolted to the end wall of the sleeve 1. The end groove 8 can facilitate the fitting of the end block 9 connected to the end shaft 2, and then the end shaft 2 and the end block 9 are fixed to the outside of the sleeve 1 by using the connecting flange 4, which is convenient for disassembly and maintenance. A limiting protrusion is provided on the side wall of the end block 9, and a limiting groove matched with the limiting protrusion is provided on the inner wall of the end groove 8. The limiting protrusion can cooperate with the limiting groove to avoid sliding dislocation between the end block 9 and the end groove 8.

[0029] The working principle of the external magnetic steel assembly of a magnetic pump provided by the utility model is as follows: the sleeve 1 can be connected to the output shaft of the output motor through the end shaft 2, wherein the magnetic steel 7 can be uniformly inserted in the socket provided in the sleeve 1 in sequence, and then the end ring 3 is pressed inside the end side of the sleeve 1, and the inclined surface 64 is squeezed by the edge of the inner wall of the end side of the sleeve 1, so that the limit block 63 drives the lifting block 62 to move in the direction of the spring 65 at the bottom of the inner groove 61 and compress it until the end ring 3 and the spring 65 are pressed together. After the end side of the magnet 7 is pressed tightly, the spring 65 drives the lifting block 62 to move along the inner wall of the inner groove 61 toward the limiting hole 5 until the limiting block 63 moves into the limiting hole 5, automatically locking the end ring 3, thereby completing the positioning and locking purpose of the magnet 7. If maintenance of the magnet 7 is required, it is only necessary to press the limiting block 63 until it is disengaged from the limiting hole 5, thereby releasing the limiting effect of the limiting hole 5 on the end ring 3. After removing the end ring 3, the magnet 7 is exposed, which is convenient for quick disassembly and assembly of the magnet 7 for maintenance.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic pump outer magnetic steel assembly, comprising a sleeve (1), one side of the sleeve (1) being connected to an end shaft (2), characterized in that: The sleeve (1) is provided with a plurality of equidistantly annularly distributed insertion holes at one end away from the end shaft (2), a magnetic steel (7) is slidably inserted into the insertion hole, an end ring (3) is fixed at one end of the sleeve (1) and is in contact with the end of the magnetic steel (7), a locking mechanism (6) equidistantly annularly distributed is installed on the circumferential side wall of the end ring (3), and a limiting hole (5) is provided at the edge of the circumferential outer wall of the sleeve (1) and is engaged with the locking mechanism (6). The stop mechanism (6) comprises an inner groove (61) provided on the side wall of the end ring (3), a lifting block (62) being slidably mounted in the inner groove (61), a limit block (63) extending to the outside of the end ring (3) being fixed at the top of the lifting block (62), a slope (64) being provided on a side of the limit block (63) close to the sleeve (1), and an elastic support member being fixed between the bottom of the lifting block (62) and the inner wall of the bottom of the inner groove (61).

2. The outer magnetic steel assembly of a magnetic pump according to claim 1, characterized in that: The elastic support member comprises a spring (65) arranged in the inner groove (61), and connecting columns (66) connected to the bottom outer wall of the lifting block (62) and the bottom inner wall of the inner groove (61) are fixed at both ends of the spring (65).

3. The outer magnetic steel assembly of a magnetic pump according to claim 1, characterized in that: An end groove (8) is provided on one side of the sleeve (1) close to the end shaft (2), an end block (9) connected to the end shaft (2) is embedded in the end groove (8), and a connecting flange (4) connected to the end wall of the sleeve (1) is sleeved on the outer wall of the end shaft (2).

4. The outer magnetic steel assembly of a magnetic pump according to claim 3, characterized in that: The side wall of the end block (9) is provided with a limiting protrusion, and the inner side wall of the end groove (8) is provided with a limiting slot adapted to the limiting protrusion.

5. The outer magnetic steel assembly of a magnetic pump according to claim 1, characterized in that: An extended convex ring is arranged on one side of the end ring (3) close to the sleeve (1), and an annular groove which fits with the extended convex ring is provided on the inner edge of the sleeve (1).

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