CN217602916U

CN217602916U - Special ceramic gear pump

Info

Publication number: CN217602916U
Application number: CN202221196659.5U
Authority: CN
Inventors: 吴仕明; 王智
Original assignee: Shanghai Lansheng New Material Technology Co ltd
Current assignee: Shanghai Lansheng New Material Technology Co ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-10-18
Anticipated expiration: 2032-05-18

Abstract

The utility model provides a special ceramic gear pump relating to the field of gear pumps, which comprises a driving shaft, a driven shaft, a driving gear, a driven gear, a ceramic ring and a universal plug seal, wherein the driving shaft is connected with the driving gear through the ceramic ring and the universal plug seal, the driven shaft is connected with the driven gear through the ceramic ring and the universal plug seal, and the driving gear is meshed with the driven gear; the driving shaft drives the driving gear to rotate, the driving gear drives the driven gear to rotate in a meshed mode, glue enters an inner cavity of the gear pump from the outer cavity, and pressure of the inner cavity is driven to increase so as to drive the flooding plug seal to expand and improve sealing performance. The utility model adopts the ceramic ring to reduce the friction heating value, improve the service life of the pump, improve the sealing effect when matching with the universal plug seal, and improve the glue applying effect; the locking nut is adopted to replace the existing compression mode, the compression structure is simplified, and the sealing effect is improved.

Description

Special ceramic gear pump

Technical Field

The utility model relates to a gear pump field specifically, relates to special ceramic gear pump.

Background

The existing gear pump is mainly fixed by using a 3-screw compression mode, is complex to operate, has high requirements on operators, and is easy to cause the condition of poor sealing performance. And the heat that current gear pump friction produced in the motion process is higher, and the rising of inside temperature can impel the structure to take place the damage, causes the fracture of sealing washer etc. shortens the life of structure.

Through the search discovery of prior art patent literature, chinese utility model patent publication number is CN210509582U, discloses a diesel oil gear pump for passenger car, belongs to gear pump technical field. Comprises a shell, a motor component and a pump body component; the utility model discloses a set up hole and pump chamber communicated with the hole on the oil outlet plate of pump body structure, make internal gear and external gear can install in the pump chamber, realized the integral type structure setting of oil outlet plate, be convenient for clamping processing preparation once, simplified the assembly process, reduced the processing cost, also improved its precision and uniformity, avoided the problem of wearing and tearing and noise; meanwhile, the ceramic plates are arranged among the inner gear, the outer gear and the oil inlet plate, so that the problems of unstable flow and high noise caused by abrasion in long-time operation can be solved, and the ceramic plates are positioned by flanges, so that the assembly process is further simplified, and accumulated errors are reduced; in addition, the tooth numbers of the inner gear and the outer gear are arranged in an odd-even matching mode, so that sound energy is effectively prevented from being concentrated on a fixed channel section, and noise is reduced. And the utility model provides a special ceramic gear pump solves the leakproofness poor, the high and short-lived scheduling problem of heat generation volume. Therefore, the method disclosed in the document and the present invention belong to different inventive concepts.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a special ceramic gear pump.

According to the utility model provides a special ceramic gear pump, including driving shaft, driven shaft, driving gear, driven gear, ceramic ring and general stopper seal, the driving shaft is connected with the driving gear through ceramic ring and general stopper seal, the driven shaft is connected with the driven gear through ceramic ring and general stopper seal, the driving gear meshes with the driven gear and connects;

the driving shaft drives the driving gear to rotate, the driving gear drives the driven gear to rotate in a meshed mode, glue enters an inner cavity of the gear pump from the outer cavity, and pressure of the inner cavity is increased to drive the flooding plug seal to expand and improve sealing performance.

In some embodiments, the ceramic ring and the flooding plug seal are respectively sleeved on the driving shaft and the driven shaft.

In some embodiments, the ceramic rings include an upper ceramic ring and a lower ceramic ring, the upper ceramic ring is connected to a connection portion of the driving shaft and the upper sealing block, and the lower ceramic ring is connected to a bottom end of the driving shaft.

In some embodiments, the ceramic rings further comprise an upper driven shaft ceramic ring and a lower driven shaft ceramic ring, and the upper driven shaft ceramic ring and the lower driven shaft ceramic ring are respectively connected to the joints of the two ends of the driven gear and the driven shaft.

In some embodiments, the flooding plug seal comprises an upper flooding plug seal and a lower flooding plug seal, wherein the upper flooding plug seal is connected with the joint of the driving shaft and the driving gear, and the lower flooding plug seal is connected with the joint of the driving gear and the lower ceramic ring.

In some embodiments, the pump further comprises a pump body, wherein the driving shaft, the driven shaft, the driving gear, the driven gear, the ceramic ring and the flooding plug seal are connected inside the pump body, and the driving shaft extends to the outer side of the pump body.

In some embodiments, the pump body includes an upper plate, an intermediate plate, and a lower plate, the upper and lower plates being connected by the intermediate plate.

In some embodiments, the drive gear and the driven gear are meshingly connected within the intermediate plate.

In some embodiments, the device further comprises an upper sealing block, the upper sealing block is connected to the upper plate in a sealing mode, and the driving shaft penetrates through the upper sealing block.

In some embodiments, the sealing device further comprises a locking nut, and the driving shaft is connected with the upper sealing block through the locking nut.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) The utility model adopts the ceramic ring to reduce the friction heating value, improve the service life of the pump, improve the sealing effect when matching with the universal plug seal, and improve the glue applying effect;

(2) The utility model discloses a current mode that compresses tightly of lock nut replacement has simplified the compact structure, has improved sealed effect.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 isbase:Sub>A cross-sectional view of the present invention A-A;

FIG. 2 is a cross-sectional view of the present invention, shown generally at D-D;

FIG. 3 is a cross-sectional view of the present invention C-C;

FIG. 4 is a cross-sectional view of the present invention B-B;

fig. 5 is a front view of the present invention.

The reference numbers in the figures:

the locking device comprises a driving shaft 1, a locking nut 2, an upper sealing block 3, an upper plate 4, an intermediate plate 5, a lower plate 6, a driven shaft 7, a driving gear 8, a driven gear 9, an upper ceramic ring 10, an upper flooding plug seal 11, a lower flooding plug seal 12, a lower ceramic ring 13, a driven shaft upper ceramic ring 14 and a driven shaft lower ceramic ring 15.

Detailed Description

The present invention will be described in detail with reference to specific embodiments. The following examples will aid those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

Examples

The utility model provides a special ceramic gear pump, as shown in figures 1-4, comprising a driving shaft 1, a locking nut 2, an upper sealing block 3, an upper plate 4, a middle plate 5, a lower plate 6, a driven shaft 7, a driving gear 8, a driven gear 9, an upper ceramic ring 10, an upper universal plug seal 11, a lower universal plug seal 12, a lower ceramic ring 13, a driven shaft upper ceramic ring 14 and a driven shaft lower ceramic ring 15; upper plate 4 and hypoplastron 6 connect through intermediate lamella 5 and form the pump body, go up sealed piece 3 sealing connection on upper plate 4, inside driving shaft 1 bottom passed sealed piece 3 and extended to the pump body, driving shaft 1 top was connected with last sealed piece through locking lock nut 2. The driven shaft 7, the driving gear 8, the driven gear 9, the upper ceramic ring 10, the upper flooding plug seal 11, the lower flooding plug seal 12, the lower ceramic ring 13, the driven shaft upper ceramic ring 14 and the driven shaft lower ceramic ring 15 are respectively connected to the interior of the pump body.

The driving shaft 1 is connected with a driving gear 8, the driven shaft 7 is connected with a driven gear 9, and the driving gear 8 and the driven gear 9 are meshed and connected in the middle plate 5. The upper ceramic ring 10 is sleeved at the joint of the driving shaft 1 and the upper sealing block 3, and the lower ceramic ring 13 is sleeved at the bottom end of the driving shaft 1. The upper flooding plug seal 11 is connected with the joint of the driving shaft 1 and the driving gear 8, and the lower flooding plug seal 12 is connected with the joint of the driving gear 8 and the lower ceramic ring 13. The driven shaft upper ceramic ring 14 and the driven shaft lower ceramic ring 15 are respectively sleeved at the joint of the two ends of the driven gear 9 and the driven shaft 7.

The working principle is as follows: in the use process of the gear pump, the driving shaft 1 rotates to drive the driving gear 8 to rotate, and the driving gear and the upper ceramic ring 10 and the lower ceramic ring 13 generate friction. The driving gear 8 rotates to drive the driven gear 9 to rotate in a meshed mode, and glue can be extruded out from an outlet of the gear pump. The driven gear 9 rotates to drive the driven shaft upper ceramic ring 14 and the driven shaft lower ceramic ring 15 to rub against the driven shaft 7. It is rotatory at 8 rotatory driven gear 9 meshing of driving gear, make glue extrude simultaneously from the gear pump export, the pressure of gear pump inner chamber can increase, goes up general stopper and seals 11 and general stopper 12 down and just rise to open, makes sealed effect better.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, are not to be construed as limiting the present application.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the essential spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. The special ceramic gear pump is characterized by comprising a driving shaft (1), a driven shaft (7), a driving gear (8), a driven gear (9), a ceramic ring and a universal plug seal, wherein the driving shaft (1) is connected with the driving gear (8) through the ceramic ring and the universal plug seal, the driven shaft (7) is connected with the driven gear (9) through the ceramic ring and the universal plug seal, and the driving gear (8) is meshed with the driven gear (9);

the driving shaft (1) drives the driving gear (8) to rotate, the driving gear (8) drives the driven gear (9) to rotate in a meshed mode, glue enters an inner cavity of the gear pump from an outer cavity, and pressure of the inner cavity is increased to drive the flooding plug to expand and improve sealing performance.

2. The dedicated ceramic gear pump according to claim 1, wherein the ceramic ring and the flooding plug seal are respectively sleeved on the driving shaft (1) and the driven shaft (7).

3. The dedicated ceramic gear pump according to claim 2, wherein the ceramic rings comprise an upper ceramic ring (10) and a lower ceramic ring (13), the upper ceramic ring (10) is connected to the connection of the driving shaft (1) and the upper sealing block (3), and the lower ceramic ring (13) is connected to the bottom end of the driving shaft (1).

4. The dedicated ceramic gear pump as claimed in claim 3, characterized in that the ceramic rings further comprise a driven shaft upper ceramic ring (14) and a driven shaft lower ceramic ring (15), the driven shaft upper ceramic ring (14) and the driven shaft lower ceramic ring (15) are respectively connected to the connection of the two ends of the driven gear (9) and the driven shaft (7).

5. The dedicated ceramic gear pump according to claim 4, characterized in that the flooding plug seals comprise an upper flooding plug seal (11) and a lower flooding plug seal (12), the upper flooding plug seal (11) being connected at the connection of the driving shaft (1) and the driving gear (8), the lower flooding plug seal (12) being connected at the connection of the driving gear (8) and the lower ceramic ring (13).

6. The dedicated ceramic gear pump according to claim 5, further comprising a pump body, the driving shaft (1), the driven shaft (7), the driving gear (8), the driven gear (9), the ceramic ring and the flood plug seal being connected inside the pump body, the driving shaft (1) extending outside the pump body.

7. The dedicated ceramic gear pump according to claim 6, characterized in that said pump body comprises an upper plate (4), an intermediate plate (5) and a lower plate (6), said upper plate (4) and lower plate (6) being connected by said intermediate plate (5).

8. The dedicated ceramic gear pump as claimed in claim 7, characterized in that the driving gear (8) and the driven gear (9) are connected in mesh within the intermediate plate (5).

9. The dedicated ceramic gear pump according to claim 8, characterized in that the upper sealing block (3) is sealingly connected to the upper plate (4) and the drive shaft (1) passes through the upper sealing block (3).

10. The dedicated ceramic gear pump according to claim 9, further comprising a lock nut (2), wherein the drive shaft (1) is connected with the upper sealing block (3) through the lock nut (2).