CN218325485U

CN218325485U - Direct-drive magnetic pump sealing device

Info

Publication number: CN218325485U
Application number: CN202222193078.2U
Authority: CN
Inventors: 许定明; 梁小晖
Original assignee: Hunan Weida Cnc Equipment Co ltd
Current assignee: Hunan Weida Cnc Equipment Co ltd
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2023-01-17
Anticipated expiration: 2032-08-19

Abstract

The utility model discloses a direct drive type magnetic pump sealing device, which comprises a sealing shell, wherein the sealing shell comprises an inner cylinder, a flange is fixed on the outer side surface of the opening end of the inner cylinder, the flange is connected with the middle part of the inner side surface of an outer ring, the inner side surface of the outer ring close to the opening end of the inner cylinder is an internal thread, an outer magnetic block is fixed on the inner side surface of the other end of the outer ring, the internal thread is in threaded connection with an external thread on the outer side surface of a boss of a pump body, an inner sealing component is installed in the inner cylinder, the inner sealing component is in rotational connection with an inner rotating mechanism between the bosses, the pump body is fixed at one end of a pedestal, the other end of the pedestal is connected with a box body, a motor is installed in the box body, and the output end of the motor is connected with an outer rotating mechanism; the device has the functions of self-tightening, quick disassembly and noise reduction, and the modular design can be used for conveniently disassembling and replacing the inner sleeve which is easy to corrode.

Description

Direct-drive magnetic pump sealing device

Technical Field

The utility model relates to a magnetic drive pump seals the field, concretely relates to direct drive formula magnetic drive pump sealing device.

Background

The magnetic pump is a pump machine which realizes non-contact torque transmission through magnetic transmission, and completely seals a pump shaft and an inner magnetic rotor through a pump body and an isolation sleeve, thereby thoroughly solving the problems of 'running, overflowing, dripping, leaking' and the like, being widely used for conveying inflammable, explosive, toxic and harmful media, and effectively ensuring the physical and mental health and safe production of workers.

The traditional magnetic drive pump spacer sleeve is usually fastened by bolts, so that the looseness is easy to occur, the spacer sleeve is difficult to disassemble during maintenance, and the spacer sleeve is inconvenient to replace as a whole after aging and damage.

SUMMERY OF THE UTILITY MODEL

For solving the problem, the utility model provides a direct drive formula magnetic drive pump sealing device, including the sealing shell, the sealing shell includes the inner tube, inner tube open end lateral surface mounting flange, flange joint outer lane medial surface middle part, the outer lane is the internal thread by the medial surface of inner tube open end, outer magnetic path is fixed to outer lane other end medial surface, the external screw thread of the boss lateral surface of the internal thread threaded connection pump body, the subassembly that seals in the installation in the inner tube, swivelling joint adversion mechanism between the subassembly that seals in and boss, the pump body is fixed in pedestal one end, the box is connected to the pedestal other end, the interior installation motor of box, the mechanism of turning outside is connected to the motor output.

Furthermore, the inner sealing assembly comprises an inner sleeve attached to the inner wall of the inner cylinder, the opening end of the inner sleeve exceeds the end face formed by the inner cylinder and the flange, a sealing ring is sleeved on the outer side wall of the inner sleeve exceeding the part, the center of the bottom end of the inner sleeve is a concave table, and a bearing rotatably connected with the inner rotating mechanism is arranged in the concave table.

Further, adversion mechanism includes the pivot, and the pivot inserts the capsule internal connection impeller with boss swivelling joint's one end, and the pivot other end seals subassembly swivelling joint with interior, and the inner rotor is fixed to the pivot shaft body, and the internal rotor lateral surface is fixed internal magnet.

Furthermore, the outer rotating mechanism comprises an outer rotor, the center of the bottom of the outer rotor is connected with the output end of the motor, an outer magnet is fixed on the inner side wall of the outer rotor, an inner magnetic block is fixed on the outer side wall of the outer rotor, the inner diameter of the outer rotor is larger than the outer diameter of the inner cylinder, and the outer diameter of the outer rotor is smaller than the inner diameter of the outer ring.

Furthermore, a sliding groove is arranged on the pedestal and is connected with the box body in a sliding manner.

Furthermore, a connector is arranged on one side of the box body, the outward rotating mechanism extends out of the box body from the connector, and a sound insulation layer is arranged on the inner wall of the box body.

Furthermore, a plurality of mutually matched ring grooves are respectively formed in two opposite end faces of the boss and the flange, sealing rings are arranged in the ring grooves, and sealing ring grooves matched with the inner sealing assembly are formed in the end faces of the boss.

Furthermore, a convex ring is arranged on the end face of the outer ring close to the internal thread, and when the enclosure is screwed on the boss, the convex ring contacts with a pressure sensor on the pump body.

Furthermore, a plurality of quick-release handles are arranged on the outer side surface of the outer ring.

The utility model discloses beneficial effect as follows:

1. the sealing shell of the utility model adopts threaded connection, compared with the bolt connection, the sealing effect is better, the sealing shell has self-screwing function to prevent loosening, and the alarm can be given when loosening;

2. the utility model has a quick-dismantling and modular structure, and can quickly dismantle and replace parts such as inner sleeves and the like which are easy to corrode;

3. the utility model discloses have and fall the function of making an uproar, can reduce the noise that the during operation produced.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention;

fig. 2 (a) and (b) are a front view and a side view, respectively, of the capsule of the present invention.

The reference numerals are illustrated below: 1. an enclosure; 101. an inner barrel; 102. a flange; 103. an outer ring; 104. an internal thread; 105. an outer magnetic block; 106. a convex ring; 107. a quick release handle; 2. a pump body; 201. a boss; 3. an inner sleeve; 301. a concave platform; 4. a bearing; 5. a rotating shaft; 6. an inner rotor; 601. an inner magnet; 7. an outer rotor; 701. an inner magnetic block; 702. an outer magnet; 8. a motor; 9. a box body; 901. a connecting port; 10. a sound insulating layer; 11. a pedestal; 1101. a chute; 12. an impeller; 13. a pressure sensor; 14. a seal ring; 15. and (4) a sealing ring.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention will be further explained with reference to the drawings attached to the specification:

as shown in fig. 1 and fig. 2, a direct-drive magnetic pump sealing device includes a casing 1, the casing 1 includes an inner cylinder 101, a flange 102 is fixed on an outer side surface of an opening end of the inner cylinder 101, the flange 102 is connected to a middle portion of an inner side surface of an outer ring 103, an inner side surface of the outer ring 103 close to the opening end of the inner cylinder 101 is an internal thread 104, an external magnetic block 105 is fixed on an inner side surface of the other end of the outer ring 103, the internal thread 104 is in threaded connection with an external thread on an outer side surface of a boss 201 of a pump body 2, an internal sealing component is installed in the inner cylinder 101, the internal sealing component is rotatably connected with the boss 201 to form an internal rotation mechanism, the pump body 2 is fixed at one end of a pedestal 11, a sliding chute 1101 is formed at the other end of the pedestal 11, the sliding chute 1101 is connected with a box body 9, a motor 8 is installed in the box body 9, an output end of the motor 8 is connected with an external rotation mechanism, and the casing 1, the boss 201, the internal rotation mechanism and the external rotation mechanism share a central axis with the external transmission mechanism.

In this embodiment, the inner sealing assembly includes an inner sleeve 3 attached to the inner wall of the inner cylinder 101, the inner sleeve 3 can be taken out and replaced by a quick release member, the opening end of the inner sleeve 3 exceeds the end face formed by the inner cylinder 101 and the flange 102, the outer side wall of the inner sleeve 3 exceeding the part is sleeved with a sealing ring 15, the center of the bottom end of the inner sleeve 3 is a concave platform 301, and a bearing 4 rotatably connected with the inner rotation mechanism is installed in the concave platform 301.

In this embodiment, the internal rotation mechanism includes a rotating shaft 5, one end of the rotating shaft 5 rotatably connected with the boss 201 is inserted into the interior of the enclosure 1 to connect with the impeller 12, the other end of the rotating shaft 5 is rotatably connected with the bearing 4, the shaft body of the rotating shaft 5 fixes the inner rotor 6, and the outer side surface of the inner rotor 6 fixes the inner magnet 601.

In this embodiment, the outer rotation mechanism includes an outer rotor 7, the center of the bottom of the outer rotor 7 is connected to the output end of the motor 8, an outer magnet 702 is fixed on the inner side wall of the outer rotor 7, an inner magnetic block 701 is fixed on the outer side wall of the outer rotor 7, the inner diameter of the outer rotor is larger than the outer diameter of the inner cylinder 101, and the outer diameter of the outer rotor is smaller than the inner diameter of the outer ring 103.

In this embodiment, a sliding groove 1101 is provided on the base 11, and the sliding groove 1101 is slidably connected to the box 9.

In this embodiment, a connection port 901 is formed on one side of the box body 9, the outer rotating mechanism extends out of the box body 9 from the connection port 901, when the box body 9 slides to the end of the sliding chute 1101 close to the pump body 2, the outer rotating mechanism extends into a ring gap formed by the inner cylinder 101 and the outer ring 103, at this time, under the action of magnetic force, the inner rotating mechanism can rotate together with the outer rotating mechanism, and the enclosure 1 rotates along with the outer rotating mechanism and has a rotating trend, thereby playing a role of fastening a threaded connection; when the box body slides to the other end of the sliding groove 1101, the outward rotating mechanism and the pump body 2 are pulled apart by a distance to facilitate the disassembly of the enclosure 1, and the sound insulation layer 10 is installed on the inner wall of the box body 9 and used for reducing the noise generated when the motor 8 works.

In this embodiment, two opposite end surfaces of the boss 201 and the flange 102 are respectively provided with a plurality of mutually matched ring grooves, the ring grooves are internally provided with the sealing rings 14, and the end surface of the boss 201 is further provided with a sealing ring groove matched with the inner sealing component.

In the present embodiment, a protruding ring 106 is provided on the end surface of the outer ring 103 close to the internal thread 104, when the capsule 1 is screwed on the boss 201, the protruding ring 106 contacts the pressure sensor 13 on the pump body 2, and when the pressure value is lower than the threshold value, the pressure sensor gives an alarm to indicate that the capsule 1 is loose.

In this embodiment, the outer side surface of the outer ring 103 is provided with a plurality of quick release handles 107, and an operator can rotationally detach the capsule 1 from the pump body 2 through the quick release handles 107.

The utility model discloses the theory of operation as follows:

when the magnetic pump works, the box body 9 is positioned at one end of the sliding groove 1101 closest to the pump body 2, at this time, the outer rotating mechanism extends into a ring gap formed by the inner cylinder 101 and the outer ring 103, the inner magnet 601 on the inner rotor 6 corresponds to the outer magnet 702 on the inner side surface of the outer rotor 7, the outer magnet 105 on the capsule 1 corresponds to the inner magnet 701 on the outer side surface of the outer rotor 7, when the output end of the motor 8 drives the outer rotating mechanism to rotate, the inner rotating mechanism rotates together under the action of magnetic force, the capsule 1 in threaded connection with the boss 201 has a rotating trend, because the screwing direction is consistent with the rotating direction of the motor, the capsule 1 is always in a self-screwing state, at this time, the boss 106 abuts against the pressure sensor 13 to enable the pressure value to be always kept above a threshold value, when the capsule 1 is loosened due to some reasons, the pressure applied to the pressure sensor 13 is reduced, and if the pressure is reduced below the threshold value, an alarm is sent.

When the magnetic pump needs to be overhauled and maintained, the alarm function of the pressure sensor 13 is turned off, the box body 9 slides to the other end of the sliding groove 1101, the outward rotating mechanism and the pump body 2 are separated by a distance so as to facilitate the disassembly of the capsule 1, and a worker unscrews the capsule 1 from the pump body 2 through the quick disassembling handle 107 so as to replace vulnerable parts such as the inner sleeve 3, the sealing ring 14 and the sealing ring 15; after the maintenance is finished, the inner sleeve 3 is firstly arranged in the inner cylinder 101, then the bearing 4 and the sealing ring 15 are put back, the sealing ring 14 is clamped in the ring groove, then the sealing shell 1 is screwed on the pump body 2, the convex ring 106 is pressed against the pressure sensor 13 again, then the alarm function is started, and the box body 9 is moved back.

The foregoing illustrates and describes the general principles, features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A direct drive magnetic drive pump sealing device, comprising a capsule (1), characterized in that: the sealing shell (1) comprises an inner cylinder (101), a flange (102) is fixed on the outer side face of an opening end of the inner cylinder (101), the flange (102) is connected with the middle part of the inner side face of an outer ring (103), the inner side face, close to the opening end of the inner cylinder (101), of the outer ring (103) is an internal thread (104), an outer magnetic block (105) is fixed on the inner side face of the other end of the outer ring (103), the internal thread (104) is in threaded connection with an external thread on the outer side face of a boss (201) of a pump body (2), an internal sealing component is installed in the inner cylinder (101), the internal sealing component is in rotational connection with the boss (201), the pump body (2) is fixed at one end of a pedestal (11), the other end of the pedestal (11) is connected with a box body (9), a motor (8) is installed in the box body (9), and an output end of the motor (8) is connected with an external rotation mechanism.

2. The direct-drive magnetic pump sealing device according to claim 1, wherein: the inner seal assembly comprises an inner sleeve (3) attached to the inner wall of an inner cylinder (101), the opening end of the inner sleeve (3) exceeds the end face formed by the inner cylinder (101) and a flange (102), a sealing ring (15) is sleeved on the outer side wall of the inner sleeve (3) exceeding part, the center of the bottom end of the inner sleeve (3) is a concave table (301), and a bearing (4) which is rotatably connected with an inward rotation mechanism is installed in the concave table (301).

3. The direct drive magnetic drive pump sealing device of claim 1, wherein: inner rotation mechanism includes pivot (5), and pivot (5) and boss (201) swivelling joint's one end inserts enclosure (1) internal connection impeller (12), and pivot (5) other end and interior subassembly swivelling joint, pivot (5) axle body fixed inner rotor (6), inner rotor (6) lateral surface fixed inner magnet (601).

4. The direct drive magnetic drive pump sealing device of claim 1, wherein: the outer rotating mechanism comprises an outer rotor (7), the center of the bottom of the outer rotor (7) is connected with the output end of the motor (8), an outer magnet (702) is fixed on the inner side wall of the outer rotor (7), an inner magnet (701) is fixed on the outer side wall of the outer rotor (7), the inner diameter of the outer rotor is larger than the outer diameter of the inner cylinder (101), and the outer diameter of the outer rotor is smaller than the inner diameter of the outer ring (103).

5. The direct drive magnetic drive pump sealing device of claim 1, wherein: the pedestal (11) is provided with a sliding groove (1101), and the sliding groove (1101) is connected with the box body (9) in a sliding manner.

6. The direct-drive magnetic pump sealing device according to claim 1, wherein: a connecting port (901) is formed in one side of the box body (9), the outward rotating mechanism extends out of the box body (9) from the connecting port (901), and a sound insulation layer (10) is installed on the inner wall of the box body (9).

7. The direct-drive magnetic pump sealing device according to claim 1, wherein: a plurality of mutually matched ring grooves are respectively formed in two opposite end faces of the boss (201) and the flange (102), a sealing ring (14) is arranged in each ring groove, and a sealing ring groove matched with the inner sealing component is further formed in the end face of the boss (201).

8. The direct-drive magnetic pump sealing device according to claim 1, wherein: and a convex ring (106) is arranged on the end face, close to the internal thread (104), of the outer ring (103), and when the enclosure (1) is screwed on the boss (201), the convex ring (106) is in contact with a pressure sensor (13) on the pump body (2).

9. The direct-drive magnetic pump sealing device according to claim 1, wherein: a plurality of quick-release handles (107) are arranged on the outer side surface of the outer ring (103).