CN106968964B

CN106968964B - Linear spring magnetic strong electric pump

Info

Publication number: CN106968964B
Application number: CN201710317815.6A
Authority: CN
Inventors: 江荣华; 金实斌
Original assignee: Zhejiang Qifeng Pump Industry Co ltd
Current assignee: Zhejiang Qifeng Pump Industry Co ltd
Priority date: 2017-05-08
Filing date: 2017-05-08
Publication date: 2023-01-24
Anticipated expiration: 2037-05-08
Also published as: CN106968964A

Abstract

The invention provides a linear spring magnetic strong electric pump, and belongs to the technical field of machinery. It has solved the short-lived scheduling problem of current orthoscopic spring magnetic force charge pump. This orthoscopic spring magnetic force charge pump includes the pump body, pump shaft and electromagnetic machine, the rigid support has been linked firmly between the pump body and the electromagnetic machine, the lower extreme of pump shaft passes the rigid support and links firmly mutually with the iron core, threaded connection has the swivel nut and the cover is equipped with the spring on the pump shaft, the one end of spring acts on the swivel nut, the other end of spring acts on the rigid support, be equipped with the seal structure that prevents water from getting into the electromagnetic machine between impeller and the rigid support, the cover has the auxiliary stand who is located between rigid support and the iron core on the pump shaft, the auxiliary stand cover is equipped with the rubber auxiliary ring that is located between its and the rigid support, the auxiliary stand is fixed in the iron core, the bottom of rubber auxiliary ring is contradicted in the auxiliary stand, the top of rubber auxiliary ring has the round and turns over the edge, the reason mouth that turns over the edge is contradicted in the rigid support. The invention has the advantages of stable operation, long service life and the like.

Description

Linear spring magnetic-strength electric pump

Technical Field

The invention belongs to the technical field of machinery, relates to a pump, and particularly relates to a linear spring magnetic-strength electric pump.

Background

The building floor of the current society is higher and higher, and the high-rise water use all needs to utilize linear spring magnetic force electric pump to realize. When the traditional linear spring magnetic strong electric pump is used in daily life, water can be discharged after waiting for a period of time, and the water has uneven pressure when discharged, so that the height of a water column can be changed, and high-rise residents can often touch the problems of small water flow, intermittent water discharge and the like. In order to improve the water inflow and water outflow of the linear spring magnetic strong electric pump body, a mode of increasing a water inlet hole and a water outlet hole is generally adopted, but the improvement cannot achieve good effect due to the size limitation of the pump body in the prior art.

In view of the above-mentioned problems, the applicant has devised a vibration-type canned motor pump and has filed a patent application No.: 201320728942.2; authorization notice number: CN203560107U ], which comprises a pump body, a pump shaft and an electromagnetic motor, wherein the electromagnetic motor is fixedly connected with the lower end of the pump body, a water inlet and a water outlet which are communicated with each other are formed in the top end of the pump body, the pump shaft is positioned in the pump body, an impeller positioned in the water inlet is fixedly connected to the top end of the pump shaft, a rigid positioning plate is fixedly connected between the pump body and the electromagnetic motor, the lower end of the pump shaft penetrates through the rigid positioning plate, an elastic structure which provides assistance for the pump shaft when the electromagnetic motor drives the pump shaft to axially move so that the impeller is close to the water inlet is arranged between the impeller and the lower end of the pump shaft, a sealing structure which prevents water from entering the electromagnetic motor is further arranged between the impeller and the lower end of the pump shaft, the elastic structure comprises a spring and a threaded sleeve which is fixedly connected to the pump shaft, the threaded sleeve is positioned between the impeller and the rigid positioning plate, the spring is sleeved on the pump shaft, one end of the spring acts on the threaded sleeve, the other end of the rubber sleeve acts on the rigid positioning plate, and the end face of the rubber sleeve is always abutted to the rigid positioning plate in the axial movement process of the pump shaft.

The vibrating type canned motor pump can improve the lift, but in the using process, the applicant finds that the end face of the rubber sleeve facing the electromagnetic motor is easily heated to form a coke surface, the rubber sleeve is easily aged or heated to be burnt after being used for a period of time, the service life is not ideal enough, the rubber sleeve is in a bead shape of a abacus, the whole stress is not uniform, the compression energy of the spring cannot be uniformly distributed, the axial linear motion of the pump shaft is influenced, the vibration of the spring is large, the working noise is large, the spring is repeatedly stressed and vibrated, the breakage is easy to occur, and the service life is short.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a linear spring magnetic strong electric pump with good working stability and long service life.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a orthoscopic spring magnetic force charge pump, includes the pump body, pump shaft and electromagnetic machine, the lower extreme of the electromagnetic machine and the pump body link firmly mutually, pump body top seted up inlet opening and the apopore that is linked together, the pump shaft be located the pump body and the top of pump shaft linked firmly the impeller that is located inlet opening department, pump body and electromagnetic machine between link firmly rigid support, the lower extreme of pump shaft pass rigid support and link firmly mutually with the iron core, the pump shaft on threaded connection have the swivel nut and pump shaft on the cover be equipped with the spring, the one end of spring act on the swivel nut, the other end of spring acts on rigid support, impeller and rigid support between be equipped with the seal structure that prevents water from entering into electromagnetic machine, a serial communication port, the pump shaft on the cover have the auxiliary stand who is located between rigid support and the iron core, auxiliary stand cover be equipped with the rubber auxiliary ring that is located between its and the rigid support, auxiliary stand's bottom be fixed in the iron core, rubber auxiliary ring's bottom contradict in auxiliary stand, rubber auxiliary ring's top have the round and outwards extend and be horn mouth and be the turn over the edge form along turn over the edge in the rigid support.

The auxiliary support in the linear spring magnetic strong electric pump plays a role in blocking, heat on the side of the iron core is prevented from being transmitted to the rubber auxiliary ring, the end face, facing the side of the iron core, of the rubber auxiliary ring is prevented from being heated to form a coke surface, the heat dissipation area of the turned edge is large, heat dissipation is timely, the rubber auxiliary ring cannot be damaged due to heating, the service life of the rubber auxiliary ring is long, and the linear spring magnetic strong electric pump can normally work for a long time; in addition, when the impeller is driven by the pump shaft to axially move away from the water inlet hole, the threaded sleeve acts on the spring to enable the spring to compress and store energy, and when the impeller is driven by the pump shaft to axially move close to the water inlet hole, the spring releases compression energy to act on the threaded sleeve to enable the pump shaft to accelerate to axially move, so that the impeller accelerates to move to generate large water pressure to press water out of the water outlet hole, and the lift is improved; at the pump shaft axial displacement in-process, the bottom of the supplementary circle of rubber is contradicted in auxiliary stand all the time, the edge of turning over of the supplementary circle of rubber is contradicted in rigid stand all the time, the effort is applyed to the iron core to the supplementary circle of rubber, thereby the effort in rigid stand is applyed to balance spring, it is good with the effect that resets to turn over the deformation on edge, make the compression energy distribution that the pump shaft removed even, avoid pump shaft axial displacement to produce and rock, play the balancing action, the pump shaft can keep axial linear motion better, the motion stability is good.

In the linear spring magnetic strong electric pump, the inner ring of the rubber auxiliary ring is buckled with the auxiliary bracket. Therefore, the rubber auxiliary ring is positioned, and the working stability is good.

In the linear spring magnetic electric pump, an air cavity is formed between the turning edge and the bottom surface of the rigid support, and the auxiliary support is provided with a vent hole communicated with the air cavity and the inner cavity of the electromagnetic motor. The air vent will turn over along compressed deformation in the compressed gas that produces in the air cavity discharges to the inner chamber of electromagnetism motor, avoids compressed gas to cause the damage of turning over the edge, and the air vent makes things convenient for the cold air of electromagnetism motor inner chamber to get into the air cavity in, to turning over along having played the radiating effect, turn over along can not damaged and the heat dissipation in time, can long-time normal work.

In the linear spring magnetic electric pump, the bottom end of the rubber auxiliary ring is a conical surface and forms an air chamber with the auxiliary support, and the auxiliary support is provided with an air passing hole communicated with the air chamber and the inner cavity of the electromagnetic motor. Compressed gas in the air chamber is discharged to the inner chamber of the electromagnetic motor from the air hole when the bottom end of the rubber auxiliary ring is deformed, and when the bottom end of the rubber auxiliary ring is reset, cold air in the inner chamber of the electromagnetic motor enters the air chamber from the air hole to play a role in heat dissipation at the bottom end of the rubber auxiliary ring, so that the heat dissipation at the bottom end of the rubber auxiliary ring is timely, a coke surface cannot be formed, and the rubber auxiliary ring can normally work for a long time.

In the linear spring magnetic electric pump, the rim of the turning edge has a first annular spigot protruding axially, and the rim of the bottom end of the rubber auxiliary ring has a second annular spigot protruding radially. The first seam allowance strengthens the contact effect of the turning edge and the rigid support, increases the structural strength so that a crack can not appear after the edge opening of the turning edge works for a long time, strengthens the contact effect of the bottom edge of the rubber auxiliary ring and the auxiliary support through the second seam allowance on the same principle, and increases the structural strength so that a crack can not appear after the edge of the bottom end of the rubber auxiliary ring works for a long time.

In the linear spring magnetic electric pump, the bottom surface of the rigid support facing the rubber auxiliary ring is provided with a concave groove into which the turned edge extends, and the notch of the groove is in a necking shape so that the edge opening of the turned edge is clamped into the bottom edge of the groove. Thus, the edge turning device plays a certain positioning role in the edge turning and increases the working stability of the edge turning.

In the linear spring magnetic strong electric pump, the two ends of the spring are sleeved with cylindrical rubber damping rings. The rubber vibration damping ring plays a role in vibration absorption and noise reduction, and improves the working stability of the spring.

In the above linear spring magnetic force electric pump, the inner wall of the rubber damping ring has an embedded portion embedded in the spring. The embedding part plays the positioning action to rubber damping circle, and the damping is effectual among the embedding spring the during operation both ends interact power moreover, avoids the spring fracture, the long service life of spring.

In the above linear spring magnetic electric pump, a rubber sleeve is disposed between the threaded sleeve and the spring and penetrates through the pump shaft. The rubber sleeve plays a role in buffering and damping vibration, so that the spring works stably.

In the linear spring magnetic strong electric pump, the sealing structure comprises a water sealing block and a positioning cylinder, the water sealing block is used for a pump shaft to penetrate and is positioned between the impeller and the threaded sleeve, the bottom end of the positioning cylinder is sealed on the rigid support, and the top end of the positioning cylinder is fixedly connected with the water sealing block. The water sealing block and the positioning cylinder have a sealing and waterproof effect, the water sealing block is used for the pump shaft to pass through, and the positioning and guiding effect is further achieved on the pump shaft.

Compared with the prior art, the linear spring magnetic-strong electric pump has higher lift under the same power consumption, has the effects of energy conservation and consumption reduction, and has the advantages of good vibration and noise reduction effects, good working stability, long service life and low working noise, and can normally work for a long time.

Drawings

Fig. 1 is a sectional view showing the structure of the linear spring electromagnetic strong electric pump.

Fig. 2 is an enlarged view of the structure of fig. 1 at circle a.

Fig. 3 is a top view of the structure of the auxiliary bracket in the linear spring magnetic strong electric pump.

In the figure, 1, a pump body; 1a, a water inlet hole; 1b, water outlet holes; 2. a pump shaft; 3. an electromagnetic motor; 4. an impeller; 5. a rigid support; 5a, a groove; 6. an iron core; 7. a threaded sleeve; 8. a spring; 9. an auxiliary support; 9a, a frame body; 9b, an inner edge; 9c, an outer edge; 10. a rubber auxiliary ring; 10a, turning over edges; 10b, arc-shaped grooves; 11. an air cavity; 12. a vent hole; 13. an air chamber; 14. air passing holes; 15. a first seam allowance; 16. a spigot II; 17. a rubber vibration damping ring; 17a, an insertion portion; 18. a rubber sleeve; 19. a water sealing block; 20. a positioning cylinder.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, the linear spring magnetic-strength electric pump includes a pump body 1, a pump shaft 2 and an electromagnetic motor 3, the electromagnetic motor 3 is fixedly connected with the lower end of the pump body 1, a water inlet hole 1a and a water outlet hole 1b communicated with each other are formed in the top end of the pump body 1, the pump shaft 2 is located in the pump body 1, and the top end of the pump shaft 2 is fixedly connected with an impeller 4 located at the water inlet hole 1a, a rigid support 5 is fixedly connected between the pump body 1 and the electromagnetic motor 3, the lower end of the pump shaft 2 penetrates through the rigid support 5 and is fixedly connected with an iron core 6, the pump shaft 2 is in threaded connection with the screw sleeve 7, and the pump shaft 2 is sleeved with a spring 8, one end of the spring 8 acts on the screw sleeve 7, the other end of the spring 8 acts on the rigid support 5, a sealing structure for preventing water from entering the electromagnetic motor 3 is arranged between the impeller 4 and the rigid support 5, the sealing structure includes a water sealing block 19 and a positioning cylinder 20, the water sealing block 19 is provided for the pump shaft 2 to penetrate through and is located between the impeller 4 and the screw sleeve 7, the bottom end of the positioning cylinder 20 is sealed on the rigid support 5, the bottom of the auxiliary support 10, the auxiliary support is provided with a rubber groove 10, and the rubber ring 10b, the rubber ring 10, the rubber ring is provided with a groove 10, the auxiliary ring, the rubber ring 10, the rubber ring 10b, the rubber ring is not easily extended along the groove 10, and the groove 10, the groove, and the rubber ring, the rubber ring 10b, the rubber ring 10 groove 10b, the rubber ring is provided with the rubber ring, and the rubber ring 10 groove, and the rubber ring.

In more detail, as shown in fig. 2 and 3, an inner ring of the rubber auxiliary ring 10 is fastened to the auxiliary support 9, an air cavity 11 is formed between the turned edge 10a and the bottom surface of the rigid support 5, an air vent 12 communicating with the air cavity 11 and the inner cavity of the electromagnetic motor 3 is formed in the auxiliary support 9, the bottom end of the rubber auxiliary ring 10 is a conical surface and forms an air chamber 13 with the auxiliary support 9, the auxiliary support 9 is provided with air passing holes 14 communicating with the air chamber 13 and the inner cavity of the electromagnetic motor 3, in this embodiment, the auxiliary support 9 includes a cylindrical support 9a, an inner edge 9b which is turned inward and annularly sleeved on the pump shaft 2 is formed at the top end of the support 9a, six air passing holes 12 which are vertically communicated and circumferentially and uniformly distributed are formed in the inner edge 9b, an outer edge 9c which is turned outward and annularly abutted against the bottom end of the rubber auxiliary ring 10 is formed at the bottom end of the support 9a, eight air passing holes 14 which are vertically communicated and circumferentially and uniformly distributed are formed in the outer edge 9c, the outer wall of the support 9a has two annular grooves, the inner ring groove is formed in which the outer wall of the rubber auxiliary ring 10 is clamped in the inner ring groove.

In order to increase the contact effect and prolong the service life, the edge of the turning edge 10a is provided with a circle of first stop 15 which axially protrudes and is annular, and the edge of the bottom end of the rubber auxiliary ring 10 is provided with a circle of second stop 16 which radially protrudes and is annular. In order to increase the operational stability of the flange 10a, the bottom of the rigid support 5 facing the rubber auxiliary ring 10 has a recessed groove 5a into which the flange 10a protrudes, the notch of the groove 5a being in the form of a constriction so that the rim of the flange 10a snaps into the bottom edge of the groove 5 a.

In order to reduce vibration and noise and improve the working stability and the service life of the spring 8, the two ends of the spring 8 are sleeved with cylindrical rubber vibration damping rings 17, and the inner wall of each rubber vibration damping ring 17 is provided with an embedded part 17a embedded into the spring 8; the pump shaft 2 is provided with a rubber sleeve 18 between the threaded sleeve 7 and the spring 8 in a penetrating way.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A linear spring magnetic-strength electric pump comprises a pump body (1), a pump shaft (2) and an electromagnetic motor (3), wherein the electromagnetic motor (3) is fixedly connected with the lower end of the pump body (1), the top end of the pump body (1) is provided with a water inlet hole (1 a) and a water outlet hole (1 b) which are communicated with each other, the pump shaft (2) is positioned in the pump body (1), the top end of the pump shaft (2) is fixedly connected with an impeller (4) positioned at the water inlet hole (1 a), a rigid support (5) is fixedly connected between the pump body (1) and the electromagnetic motor (3), the lower end of the pump shaft (2) penetrates through the rigid support (5) and is fixedly connected with an iron core (6), the pump shaft (2) is in threaded connection with a threaded sleeve (7) and is sleeved with a spring (8), one end of the spring (8) acts on the threaded sleeve (7), the other end of the spring (8) acts on the rigid support (5), a sealing structure for preventing water from entering the electromagnetic motor (3) is arranged between the impeller (4) and the rigid support (5), and the sealing structure is arranged between the auxiliary support (9) and is arranged between the auxiliary support (6), the bottom of auxiliary stand (9) be fixed in iron core (6), the bottom of supplementary circle of rubber (10) contradict in auxiliary stand (9), the top of supplementary circle of rubber (10) has the outside extension of round and is the edge of turning over (10 a) of horn mouth form, the edge of turning over along (10 a) contradict in rigid support (5).

2. A linear spring-type magnetohydrodynamic pump as claimed in claim 1, characterized in that the inner ring of the rubber auxiliary ring (10) is fastened to the auxiliary support (9).

3. The linear spring magnetic electric pump according to claim 1 or 2, characterized in that an air cavity (11) is formed between the turning edge (10 a) and the bottom surface of the rigid support (5), and the auxiliary support (9) is provided with a vent hole (12) communicated with the air cavity (11) and the inner cavity of the electromagnetic motor (3).

4. The linear spring magnetic electric pump according to claim 1 or 2, characterized in that the bottom end of the rubber auxiliary ring (10) is a conical surface and forms an air chamber (13) with the auxiliary support (9), and the auxiliary support (9) is provided with an air hole (14) communicating the air chamber (13) and the inner cavity of the electromagnetic motor (3).

5. The linear spring-type magnetoelectric pump according to claim 1, characterized in that the rim of the turning edge (10 a) has a first axially protruding and annular stop (15), and the rim of the bottom end of the rubber auxiliary ring (10) has a second radially protruding and annular stop (16).

6. The linear spring magnetomechanical pump according to claim 1, wherein the bottom surface of the rigid support (5) facing the rubber auxiliary ring (10) has a concave groove (5 a) into which the flange (10 a) extends, the notch of the groove (5 a) being necked down such that the rim of the flange (10 a) snaps into the bottom edge of the groove (5 a).

7. The linear spring magnetomechanical pump of claim 1, wherein both ends of the spring (8) are fitted with cylindrical rubber damping rings (17).

8. The linear spring-type magnetohydrodynamic pump of claim 7, characterized in that the inner wall of the rubber damping ring (17) has an insertion portion (17 a) which is inserted into the spring (8).

9. The linear spring-type magnetoelectric pump according to claim 1 or 7, characterized in that the pump shaft (2) is provided with a rubber sleeve (18) disposed between the threaded sleeve (7) and the spring (8).

10. The linear spring-magnetic-strong electric pump according to claim 1, characterized in that the sealing structure comprises a water sealing block (19) and a positioning cylinder (20), the water sealing block (19) is used for the pump shaft (2) to pass through and is located between the impeller (4) and the threaded sleeve (7), the bottom end of the positioning cylinder (20) is sealed on the rigid support (5), and the top end of the positioning cylinder (20) is fixedly connected with the water sealing block (19).