CN213088261U

CN213088261U - Cooling pump for high-sealing machine tool

Info

Publication number: CN213088261U
Application number: CN202021450448.0U
Authority: CN
Inventors: 王朱峰; 丁卫忠
Original assignee: Jiangsu Fengchao Pump Co ltd
Current assignee: Jiangsu Fengchao Pump Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-04-30
Anticipated expiration: 2030-07-21

Abstract

The utility model discloses a high leakproofness is cooling pump for lathe, including the motor, connecting seat and the pump body, the connecting seat is fixed between the motor and the pump body. The connecting seat pump body includes the cylindric casing of upper and lower open-ended, the connecting seat casing internal rotation is connected with the pivot, connecting seat casing lower extreme is fixed with the pump cover that has the inlet opening, be provided with the switching chamber in the connecting seat, still be provided with the through-hole of intercommunication switching chamber and casing on the connecting seat, the connecting seat pivot is passed the through-hole and is stretched into in the switching chamber, the output shaft of connecting seat motor extends into the switching intracavity and is connected with the pivot through the shaft coupling, the intercommunication department of the inner chamber of connecting seat switching chamber and casing is provided with seal assembly, connecting seat seal assembly includes the sponge circle of suit outside the pivot, rubber circle and mechanical seal, connecting seat sponge circle, rubber circle and mechanical seal set gradually from. The sealing performance is good, and the service life is long.

Description

Cooling pump for high-sealing machine tool

Technical Field

The utility model relates to a centrifugal pump technical field especially relates to high leakproofness cooling pump for lathe.

Background

The machine tool cooling pump is a lift type multistage centrifugal pump, a pump suction inlet is in the axial position, a discharge outlet is in the radial direction, and the machine tool cooling pump is used for a high-precision and high-function machine tool which needs high pressure, cools a processed object and improves the surface smoothness, and is very suitable for dispersing cutting powder and then enabling the cutting powder to flow out or be cleaned. The machine tool cooling pump has the advantages of attractive appearance, high efficiency, energy conservation, quiet operation and the like. But present cooling pump can produce ponding in the pump at the in-process of work, and sealed form is simple, and the leakproofness is poor, and the coolant liquid of transmission can get into the junction of motor output shaft and pivot, influences cooling pump's life.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model aims to provide a high leakproofness is cooling pump for lathe, sealed effectual, effectively protect shaft coupling and motor, improve life.

In order to achieve the above purpose, the utility model discloses a technical scheme is: high leakproofness is cooling pump for lathe, including motor, connecting seat and the pump body, the connecting seat is fixed between the motor and the pump body, its characterized in that: the pump body includes the cylindric casing of upper and lower open-ended, the rotation is connected with the pivot in the casing, the casing lower extreme is fixed with the pump cover that has the inlet opening, be provided with the switching chamber in the connecting seat, still be provided with the through-hole of intercommunication switching chamber and casing on the connecting seat, the pivot passes the through-hole and stretches into in the switching chamber, the output shaft of motor extends into the switching intracavity and is connected with the pivot through the shaft coupling, the intercommunication department of the inner chamber of switching chamber and casing is provided with seal assembly, seal assembly includes sponge circle, rubber circle and the mechanical seal piece of suit outside the pivot, sponge circle, rubber circle and mechanical seal piece set gradually from being close to the switching chamber to keeping away from the switching chamber.

The beneficial effects of the utility model reside in that: adopt sponge circle, rubber circle and the triple seal of mechanical seal, when liquid upwards leaked in the casing, at first through mechanical seal, the liquid that oozes blockked through the rubber circle, if still some liquid oozes, then absorbed by the sponge circle, triple seal, sealed effectual effectively protects shaft coupling and motor, improves life.

Further, the rubber circle includes annular sealing and the joint portion of following the outside extension of sealing outer wall, the inner wall of through-hole is provided with the draw-in groove that supplies the embedding of joint portion and supports the boss that leans on terminal surface under the sealing, and the rubber circle of being convenient for is fixed, leave the clearance between boss and pivot, prevent that the boss from blockking the pivot and rotate.

Further, the lower terminal surface that sealing portion and boss leaned on is the helicitic texture with the inseparable block of boss, the inner wall that sealing portion and pivot leaned on is the arc type of outside salient, improves the leakproofness.

Further, the inner wall of the through hole is further provided with a first annular groove for embedding a sponge ring and a second annular groove for embedding a mechanical sealing element, the sponge ring is of a circular ring structure, and the mechanical sealing element extends downwards into the shell so as to be convenient to replace and maintain.

Further, still be provided with the delivery port with casing inner chamber intercommunication on the connecting seat, the delivery port is located the through-hole below, reduces the liquid that gets into in the through-hole, improves the aridity of switching chamber.

Further, a plurality of impellers rotating in the shell are fixed on the rotating shaft, a fluid director fixed in the shell is arranged between every two adjacent impellers, and liquid is transmitted from bottom to top under the action of the impellers.

Furthermore, the connecting seat further comprises an upper flange and a lower flange, the adapter cavity is positioned between the upper flange and the lower flange, the motor is fixed on the upper flange, the shell is fixed on the lower flange, and the pump cover is fixedly connected with the lower flange through a plurality of pull rods, so that the installation is convenient and fast.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of the position A in the embodiment of the present invention;

fig. 3 is a cross-sectional view of the rubber ring in the embodiment of the present invention.

In the figure:

1-motor, 11-output shaft, 2-connecting seat, 21-switching cavity, 22-water outlet, 3-shell, 4-rotating shaft, 41-impeller, 5-pump cover, 6-coupler, 71-sponge ring, 72-rubber ring, 721-sealing part, 722-clamping part, 73-mechanical sealing part, 81-clamping groove, 82-boss and 9-pull rod.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Examples

Referring to the attached drawings 1-3, the cooling pump for the high-sealing machine tool of the present invention comprises a motor 1, a connecting seat 2 and a pump body, wherein the connecting seat 2 is fixed between the motor 1 and the pump body. The pump body includes cylindric casing 3 of upper and lower open-ended, the casing 3 internal rotation is connected with pivot 4, casing 3 lower extreme is fixed with pump cover 5 that has the inlet opening. The connecting seat 2 further comprises an upper flange and a lower flange, the adapter cavity 21 is located between the upper flange and the lower flange, the motor 1 is fixed on the upper flange, the shell 3 is fixed on the lower flange, and the pump cover 5 is fixedly connected with the lower flange through the pull rods 9, so that the installation is convenient and fast.

A switching cavity 21 is arranged in the connecting seat 2, a through hole for communicating the switching cavity 21 with the shell 3 is further arranged on the connecting seat 2, and the rotating shaft 4 penetrates through the through hole and extends into the switching cavity 21. The output shaft 11 of the motor 1 extends into the adapting cavity 21 and is connected with the rotating shaft 4 through the coupler 6. Switching chamber 21 and the intercommunication department of the inner chamber of casing 3 are provided with seal assembly, seal assembly includes that the suit is at sponge circle 71, rubber circle 72 and the mechanical seal 73 outside pivot 4, sponge circle 71, rubber circle 72 and mechanical seal 73 set gradually from being close to switching chamber 21 to keeping away from switching chamber 21. The mechanical seal 73 is conventional and is a commercially available component and will not be described in detail herein. The sponge ring 71, the rubber ring 72 and the mechanical sealing piece 73 are used for triple sealing, when liquid in the shell 3 leaks upwards, the liquid seeped out is blocked by the mechanical sealing piece 73 through the rubber ring 72, and if some liquid seeps out, the liquid is absorbed by the sponge ring 71.

The rubber ring 72 comprises an annular sealing part 721 and a clamping part 722 extending outwards along the outer wall of the sealing part 721, the inner wall of the through hole is provided with a clamping groove 81 for embedding the clamping part 722 and a boss 82 abutted to the lower end face of the sealing part 721, so that the rubber ring 72 is convenient to fix, a gap is reserved between the boss 82 and the rotating shaft 4, and the boss 82 is prevented from blocking the rotating shaft 4 to rotate. The lower end face of the sealing part 721 abutted against the boss 82 is of a thread structure tightly clamped with the boss 82, and the inner wall of the sealing part 721 abutted against the rotating shaft 4 is of an arc shape protruding outwards, so that the sealing performance is improved.

The inner wall of through-hole still sets up the first annular groove that supplies sponge circle 71 embedding and the second annular groove that supplies mechanical seal 73 embedding, sponge circle 71 is the ring structure, mechanical seal 73 downwardly extending is convenient for replace and maintain in the casing 3.

Still be provided with the delivery port 22 with the intercommunication of casing 3 inner chamber on the connecting seat 2, delivery port 22 is located the through-hole below, reduces the liquid that gets into in the through-hole, improves the aridity of adapter 21.

A plurality of impellers 41 which rotate in the shell 3 are fixed on the rotating shaft 4, a fluid director fixed in the shell 3 is arranged between every two adjacent impellers 41, and liquid is transmitted from bottom to top under the action of the impellers 41.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. High leakproofness is cooling pump for lathe, including motor (1), connecting seat (2) and the pump body, its characterized in that is fixed between motor (1) and the pump body in connecting seat (2): the pump body includes cylindric casing (3) of upper and lower open-ended, casing (3) internal rotation is connected with pivot (4), casing (3) lower extreme is fixed with pump cover (5) that have the inlet opening, be provided with switching chamber (21) in connecting seat (2), still be provided with the through-hole of intercommunication switching chamber (21) and casing (3) on connecting seat (2), pivot (4) pass the through-hole and stretch into in switching chamber (21), output shaft (11) of motor (1) extend into switching chamber (21) in be connected with pivot (4) through shaft coupling (6), the intercommunication department of the inner chamber of switching chamber (21) and casing (3) is provided with seal assembly, seal assembly includes sponge circle (71), rubber circle (72) and mechanical seal (73) of suit outside pivot (4), sponge circle (71), rubber circle (72) and mechanical seal (73) set gradually from being close to switching chamber (21) to keeping away from switching chamber .

2. The cooling pump for a high-sealing machine tool according to claim 1, wherein: the rubber ring (72) comprises an annular sealing part (721) and a clamping part (722) extending outwards along the outer wall of the sealing part (721), the inner wall of the through hole is provided with a clamping groove (81) for embedding the clamping part (722) and a boss (82) abutted against the lower end face of the sealing part (721), and a gap is reserved between the boss (82) and the rotating shaft (4).

3. The cooling pump for a high-sealing machine tool according to claim 2, wherein: the lower end face of the sealing part (721) abutted against the boss (82) is of a thread structure tightly clamped with the boss (82), and the inner wall of the sealing part (721) abutted against the rotating shaft (4) is of an arc shape protruding outwards.

4. The cooling pump for a high-sealing machine tool according to claim 1, wherein: the inner wall of the through hole is further provided with a first annular groove for embedding the sponge ring (71) and a second annular groove for embedding the mechanical sealing element (73), and the sponge ring (71) is of a circular ring structure.

5. The cooling pump for a high-sealing machine tool according to claim 1, wherein: a water outlet (22) communicated with the inner cavity of the shell (3) is also arranged on the connecting seat (2), and the water outlet (22) is positioned below the through hole.

6. The cooling pump for a high-sealing machine tool according to claim 1, wherein: a plurality of impellers (41) rotating in the shell (3) are fixed on the rotating shaft (4), and a fluid director fixed in the shell (3) is arranged between every two adjacent impellers (41).

7. The cooling pump for a high-sealing machine tool according to claim 1, wherein: the connecting seat (2) further comprises an upper flange and a lower flange, the adapter cavity (21) is located between the upper flange and the lower flange, the motor (1) is fixed on the upper flange, the shell (3) is fixed on the lower flange, and the pump cover is fixedly connected with the lower flange through a plurality of pull rods (9).