CN220036926U

CN220036926U - Gear pump

Info

Publication number: CN220036926U
Application number: CN202320753855.6U
Authority: CN
Inventors: 雷鸣
Original assignee: Xiamen Jier Micropump Co ltd
Current assignee: Xiamen Jier Micropump Co ltd
Priority date: 2023-04-07
Filing date: 2023-04-07
Publication date: 2023-11-17
Anticipated expiration: 2033-04-07

Abstract

The utility model discloses a gear pump, which comprises a motor, wherein a main shaft is arranged at the power output end of the motor, a shaft seal is arranged at the periphery of one end of the main shaft, a pump body is fixed at one end of the shaft seal, a base is arranged at the bottom end of the pump body, a liquid inlet valve is fixed on one side wall of the pump body, a liquid discharge valve is fixed on the side wall, opposite to the liquid inlet valve, of the pump body, one end of the main shaft is connected with a lower gear, and an upper gear is arranged at the upper end of the lower gear. The beneficial effects are that: according to the utility model, the marking inclined plate can be visually seen through the arranged transparent resin plate, the allowance of the lubricating liquid is known by means of the marks on the marking inclined plate, and the fixing bolt can be opened for timely supplementing, so that the convenience of gear pump lubricating liquid supplementing is improved.

Description

Gear pump

Technical Field

The utility model relates to the technical field of gear pumps, in particular to a gear pump.

Background

The gear pump is a rotary pump which conveys liquid or pressurizes the liquid by means of the change and movement of working volume formed between a pump cylinder and an engaged gear, two closed spaces are formed by two gears, a pump body and a front cover and a rear cover, when the gears rotate, the volume of a space at the disengaging side of the gears is changed from small to large to form vacuum, the liquid is sucked, the volume of the space at the engaging side of the gears is changed from large to small, the liquid is extruded into a pipeline, a suction cavity and a discharge cavity are separated by the engaging lines of the two gears, and the pressure of the discharge outlet of the gear pump is completely dependent on the resistance at the pump outlet.

In order to satisfy the self-lubricating use of gear pump, the chinese patent of patent number CN201920699327.0 discloses a gear pump, relates to gear pump technical field, including gear cavity and unable adjustment base, the side radiating groove has all been seted up to two wall upper ends around the gear cavity, and both ends all are fixed with side strengthening mechanism around the middle part of gear cavity, the middle part outer wall of gear cavity wears to be equipped with the location screw, and the upper end at gear cavity middle part is settled there is the lubricating tank.

Although the gear pump described in the above patent can perform self-lubricating operation, the closed structure thereof causes that the staff cannot check the lubricant allowance in time and is difficult to supplement in time, thereby reducing the convenience of supplementing the lubricant of the gear pump.

Disclosure of Invention

First, the technical problem to be solved

Aiming at the current state of the art, the utility model provides the gear pump with good protection effect and convenient replacement.

(II) technical scheme

The utility model is realized by the following technical scheme: the utility model provides a gear pump, which comprises a motor, wherein a main shaft is arranged at the power output end of the motor, a shaft seal is arranged at the periphery of one end of the main shaft, one end of the shaft seal is fixedly provided with a pump body, a base is arranged at the bottom end of the pump body, a liquid inlet valve is fixedly arranged on one side wall of the pump body, a liquid discharge valve is fixedly arranged on the side wall, opposite to the liquid inlet valve, of the pump body, one end of the main shaft is connected with a lower gear, an upper gear is arranged at the upper end of the lower gear, a lubricating oil bin is arranged at the middle part of the upper end of the pump body, a transparent resin plate is arranged at the upper end of the lubricating oil bin, a fixing bolt is arranged at one side of the transparent resin plate, and a marking inclined plate is arranged at one side in the lubricating oil bin.

Further, the main shaft is connected with the motor through a key, and the shaft seal is connected with the pump body through a flange.

Through adopting above-mentioned technical scheme, when using, through the motor drives the main shaft rotates, the condition that the shaft seal can effectively avoid the weeping can play sealed effect.

Further, the main shaft penetrates through the shaft seal and is connected with the lower gear, and the base is welded with the pump body.

By adopting the technical scheme, the main shaft can drive the lower gear to rotate, and the base facilitates the installation and fixation of the pump body.

Further, the liquid inlet valve is welded with the pump body, the liquid outlet valve is welded with the pump body, and the liquid inlet valve and the liquid outlet valve are provided with connecting holes.

Through adopting above-mentioned technical scheme, the feed liquor valve is convenient to be connected with outside feed liquor pipe, the flowing back liquid valve is convenient to be connected with outside drain pipe.

Further, the upper gear is meshed with the lower gear, and the upper gear is rotatably connected with the pump body.

By adopting the technical scheme, after the lower gear is driven by the motor, the upper gear can be driven to move through the action of meshing connection.

Further, the lubricating oil bin is welded with the pump body, and the transparent resin plate is glued with the lubricating oil bin.

Through adopting above-mentioned technical scheme, lubricating oil can be filled in the lubricating oil storehouse, carries out self-lubricating operation, transparent resin board is convenient to look over and uses, has better wear-resisting effect simultaneously.

Further, the fixing bolt is in threaded connection with the lubricating oil bin, the marking inclined plate is welded with the lubricating oil bin, and the lubricating oil bin is provided with identification numbers with different colors.

Through adopting above-mentioned technical scheme, when carrying out the lubricating liquid and supplementing, will the gim peg is opened and is poured the use, mark scale display on the swash plate, the user of facilitating the use watches remaining lubricating liquid surplus.

(III) beneficial effects

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

in order to solve the problem that the existing gear pump can perform self-lubricating operation, but the closed structure of the gear pump can not check the residual quantity of lubricating oil in time and is difficult to supplement in time, so that the convenience of gear pump lubricating fluid supplement is reduced.

Drawings

FIG. 1 is a schematic view of a gear pump according to the present utility model;

FIG. 2 is a right side cross-sectional view of a pump body in a gear pump according to the present utility model;

fig. 3 is an enlarged view of a gear pump according to the present utility model at a in fig. 1.

The reference numerals are explained as follows:

1. a motor; 2. a lubricating oil bin; 3. a transparent resin plate; 4. a main shaft; 5. a shaft seal; 6. a pump body; 7. a liquid inlet valve; 8. marking a sloping plate; 9. a fixing bolt; 10. a top gear; 11. a top gear; 12. a lower gear; 13. and (5) a base.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1-3, a gear pump in this embodiment, including motor 1, spindle 4 is installed to motor 1's power take off end, spindle 4 one end periphery is installed shaft seal 5, when using, drive spindle 4 through motor 1 and rotate, shaft seal 5 can effectively avoid the condition of weeping, can play sealed effect, shaft seal 5 one end is fixed with pump body 6, base 13 is installed to pump body 6 bottom, be fixed with feed liquor valve 7 on one side wall of pump body 6, be fixed with fluid-discharge valve 11 on the side wall opposite to feed liquor valve 7 on the pump body 6, spindle 4 one end is connected with lower gear 12, lower gear 12 upper end is provided with gear 10, pump body 6 upper end mid-mounting has lubricating oil storehouse 2, lubricating oil storehouse 2 can fill lubricating oil, carry out the self-lubricating operation, transparent resin plate 3 makes things convenient for looking over the use, have better wear-resisting effect simultaneously, lubricating oil storehouse 2 upper end is provided with transparent resin plate 3, transparent resin plate 3 one side is provided with dead bolt 9, one side is provided with marking 8 in lubricating oil storehouse 2. When the lubricating liquid is replenished, the fixing bolt 9 is opened for filling, the scales on the inclined plate 8 are marked for displaying, and a user can conveniently watch the residual lubricating liquid.

As shown in fig. 1-3, the main shaft 4 is connected with the motor 1 through a key, the shaft seal 5 is connected with the pump body 6 through a flange, the main shaft 4 penetrates through the shaft seal 5 and is connected with the lower gear 12, the base 13 is welded with the pump body 6, the main shaft 4 can drive the lower gear 12 to rotate, the base 13 is convenient for installing and fixing the pump body 6, the liquid inlet valve 7 is welded with the pump body 6, the liquid outlet valve 11 is welded with the pump body 6, the liquid inlet valve 7 and the liquid outlet valve 11 are provided with connecting holes, the liquid inlet valve 7 is convenient to be connected with an external liquid inlet pipe, the liquid outlet valve is convenient to be connected with an external liquid outlet pipe, the upper gear 10 is meshed with the lower gear 12, the upper gear 10 is rotationally connected with the pump body 6, the lower gear 12 can drive the upper gear 10 to move through the effect of meshing connection after being driven by the motor 1, the lubricating oil bin 2 is welded with the pump body 6, the transparent resin plate 3 is glued with the lubricating oil bin 2, the fixing bolt 9 is in threaded connection with the lubricating oil bin 2, the marking swash plate 8 is welded with the lubricating oil bin 2, and the lubricating oil bin 2 is provided with identification numbers with different colors.

The specific implementation process of this embodiment is as follows: firstly, install fixedly motor 1 and pump body 6, then with feed liquor valve 7 and flowing back valve 11 respectively with outside pipe connection, drive gear 12 rotation down by main shaft 4 after motor 1 circular telegram, gear 10 rotates down to drive, realize supplying the liquid operation, when needing to look over the lubricating liquid surplus, can audio-visually see mark swash plate 8 through the transparent resin board 3 of laying, and rely on the mark swash plate 8 to know the surplus of lubricating liquid, can open gim 9 and carry out timely replenishment, and then improved the convenience when gear pump lubricating liquid is replenished.

The above examples are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the spirit and scope of the present utility model. Various modifications and improvements of the technical scheme of the present utility model will fall within the protection scope of the present utility model without departing from the design concept of the present utility model, and the technical content of the present utility model is fully described in the claims.

Claims

1. A gear pump, characterized in that: including motor (1), main shaft (4) are installed to the power take off of motor (1), shaft seal (5) are installed to main shaft (4) one end periphery, shaft seal (5) one end is fixed with pump body (6), base (13) are installed to pump body (6) bottom, be fixed with feed liquor valve (7) on a pump body (6) lateral wall, on pump body (6) with be fixed with fluid-discharge valve (11) on the lateral wall that feed liquor valve (7) is relative, main shaft (4) one end is connected with gear (12) down, gear (10) are provided with in gear (12) upper end down, pump body (6) upper end mid-mounting has lubricating oil storehouse (2), lubricating oil storehouse (2) upper end is provided with transparent resin board (3), transparent resin board (3) one side is provided with gim peg (9), one side is provided with in lubricating oil storehouse (2) marks swash plate (8).

2. The gear pump of claim 1, wherein: the main shaft (4) is in key connection with the motor (1), and the shaft seal (5) is in flange connection with the pump body (6).

3. The gear pump of claim 1, wherein: the main shaft (4) penetrates through the shaft seal (5) and is connected with the lower gear (12), and the base (13) is welded with the pump body (6).

4. The gear pump of claim 1, wherein: the liquid inlet valve (7) is welded with the pump body (6), the liquid discharge valve (11) is welded with the pump body (6), and the liquid inlet valve (7) and the liquid discharge valve (11) are provided with connecting holes.

5. The gear pump of claim 1, wherein: the upper gear (10) is meshed with the lower gear (12), and the upper gear (10) is rotatably connected with the pump body (6).

6. The gear pump of claim 1, wherein: the lubricating oil bin (2) is welded with the pump body (6), and the transparent resin plate (3) is glued with the lubricating oil bin (2).

7. The gear pump of claim 1, wherein: the fixing bolt (9) is in threaded connection with the lubricating oil bin (2), the marking inclined plate (8) is welded with the lubricating oil bin (2), and the lubricating oil bin (2) is provided with identification numbers with different colors.