CN219299513U

CN219299513U - Gear pump with sealing and self-priming functions

Info

Publication number: CN219299513U
Application number: CN202320628050.9U
Authority: CN
Inventors: 杨玉辉; 张景阳
Original assignee: Zhangzhou Junteer Electromechanical Equipment Co ltd
Current assignee: Zhangzhou Junteer Electromechanical Equipment Co ltd
Priority date: 2023-03-28
Filing date: 2023-03-28
Publication date: 2023-07-04
Anticipated expiration: 2033-03-28

Abstract

The utility model provides a pump with sealing self-priming function, which comprises a pump body: the pump body comprises a motor, a driven shaft, a gear box, a driving bevel gear, a driven bevel gear, a gear box cover, a sealing ring, an oil seal, the gear box is fixed at the front end of the motor, the driving bevel gear and the driven bevel gear are mutually meshed with each other, the gear box cover is fixed at the front end of the gear box, the oil seal is arranged in an oil seal groove correspondingly formed between the motor and the gear box, the sealing ring is arranged in the gear box cover, an output shaft of the motor penetrates through the oil seal to extend into the gear box and is fixedly connected with the driving bevel gear, the driven shaft is rotatably arranged on the gear box and the gear box cover, the driven bevel gear is fixed on the outer wall of the driven shaft, a space gap in the gear box is compact, and the pump can be used for self-sucking water pumping when the motor rotates.

Description

Gear pump with sealing and self-priming functions

Technical Field

The utility model mainly relates to the technical field of gear pumps, in particular to a water pumping gear pump with sealing and self-priming functions.

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 the space at the disengaging side of the gears is changed from small to large, vacuum is formed, liquid is sucked, the volume of the space at the engaging side of the gears is changed from large to small, and the liquid is extruded into a pipeline. The suction cavity and the discharge cavity are separated by the meshing line of the two gears, the pressure of the discharge outlet of the gear pump is completely dependent on the large resistance at the pump outlet, the gear pump is pumping oil at present, the self-priming performance is poor when no lubricating oil exists, the pumping oil gear pump has less lubrication and sealing of the oil, and the self-priming can not be realized and is easy to be blocked.

Disclosure of Invention

In order to solve the problems in the background technology, the utility model aims to provide the gear pump with the sealing and self-priming functions, which can enhance the compactness of the space in the pump cavity, ensure the normal operation of the pump and ensure the clearance of the internal space when no lubricating oil is added, and can self-priming and pump water.

The utility model adopts the following technical scheme: a pump for pumping water having sealed self-priming, comprising a pump body: the pump body comprises a motor, a driven shaft, a gear box, a driving bevel gear, a driven bevel gear, a gear box cover, a sealing ring and an oil seal, wherein the gear box is fixed at the front end of the motor, the driving bevel gear and the driven bevel gear are installed in the gear box to be meshed with each other up and down, the gear box cover is fixed at the front end of the gear box, the oil seal is arranged in an oil seal groove correspondingly formed between the motor and the gear box, the sealing ring is arranged in the gear box cover, an output shaft of the motor penetrates through the oil seal to extend into the gear box and is fixedly connected with the driving bevel gear, the driven shaft is rotatably installed on the gear box and the gear box cover, the driven bevel gear is fixed on the outer wall of the driven shaft, a space gap in the gear box is compact, and the motor can self-suction water pumping when in a semi-vacuum state.

Preferably, the driving bevel gear and the driven bevel gear both adopt large-modulus positive displacement.

Preferably, the motor output shaft is parallel to the driven shaft, so that the driving helical teeth and the driven helical teeth are meshed.

Preferably, screws are symmetrically arranged on the left and right sides of the gear box, and the gear box is fixedly connected with the motor through the symmetrical screws.

Preferably, the gear box cover is provided with a plurality of stainless steel screws, and the gear box cover is fixed on the front end face of the gear box through the stainless steel screws.

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

the utility model enhances the compactness of the space in the pump cavity, ensures the normal operation of the pump and the clearance of the internal space when no lubricating oil is added, can self-suction water pumping, adopts large-modulus positive displacement of the driving bevel gear and the driven bevel gear, is beneficial to tighter meshing of the two gears and reduces vortex generated during self-suction water pumping; the gear is not blocked and can draw water from the suction.

The utility model will be explained in detail below with reference to the drawings and specific embodiments.

Drawings

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

FIG. 2 is a schematic diagram of a gear pump according to the present utility model;

fig. 3 is a schematic diagram of a gear matching structure of the present utility model.

In the figure: 1. a motor; 2. an oil seal; 3. a gear box; 4. a screw; 5. a driving helical gear; 6. driven helical gears; 7. a driven shaft; 8. a seal ring; 9. a gear box cover; 10. stainless steel screw.

Detailed Description

In order that the utility model may be more fully understood, a more particular description of the utility model will be rendered by reference to the appended drawings, in which several embodiments of the utility model are illustrated, but which may be embodied in different forms and are not limited to the embodiments described herein, which are, on the contrary, provided to provide a more thorough and complete disclosure of the utility model.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs, and the terms used herein in this description of the utility model are for the purpose of describing particular embodiments only and are not intended to be limiting of the utility model, with the term "and/or" as used herein including any and all combinations of one or more of the associated listed items.

Embodiment one:

referring to fig. 1-3, a pump with sealed self-priming function includes a pump body, the pump body includes a motor 1, a driven shaft 7, a gear box 3, a driving bevel gear 5, a driven bevel gear 6, a gear box cover 9, a sealing ring 8, an oil seal 2, the gear box 3 is fixed at the front end of the motor 1, the driving bevel gear 5 and the driven bevel gear 6 are installed in the gear box 3 up and down and meshed with each other, the gear box cover 9 is fixed at the front end of the gear box 3, the oil seal 2 is arranged in an oil seal 2 groove correspondingly formed between the motor 1 and the gear box 3, the sealing ring 8 is arranged in the gear box cover 9, an output shaft of the motor 1 penetrates through the oil seal 2 and stretches into the gear box 3 to be fixedly connected with the driving bevel gear 5, the driven shaft 7 is rotatably installed on the gear box 3 and the gear box cover 9, the driven bevel gear 6 is fixed at the outer wall of the driven shaft 7, a space gap in the gear box 3 is in a semi-vacuum state, when lubrication is not only required, normal running of the pump is ensured, but also an internal space gap is ensured, and when the motor 1 rotates.

In this embodiment, the driving helical gear 5 and the driven helical gear 6 both adopt large-modulus positive displacement, and the driving helical gear 5 and the driven helical gear 6 adopt large-modulus positive displacement, which is beneficial to the tightness of the two gears when meshing, and reduces the vortex generated during self-priming pumping.

In this embodiment, the output shaft of the motor 1 is arranged parallel to the driven shaft 7.

In this embodiment, the gear box 3 is symmetrically provided with screws 4, the gear box 3 is fixedly connected with the motor 1 through the screws 4, and the gear box 3 is fixedly installed.

In this embodiment, the gear box cover 9 is provided with a plurality of stainless steel screws 10, the gear box cover 9 is fixed to the front end surface of the gear box 3 by the plurality of stainless steel screws 10, and the gear box cover 9 is fixedly mounted.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the embodiments described above, but is intended to be within the scope of the utility model, as long as such insubstantial modifications are made by the method concepts and technical solutions of the utility model, or the concepts and technical solutions of the utility model are applied directly to other occasions without any modifications.

Claims

1. The utility model provides a draw water gear pump that has sealed self priming, includes the pump body, its characterized in that: the pump body comprises a motor (1), a driven shaft (7), a gear box (3), a driving bevel gear (5), a driven bevel gear (6), a gear box cover (9), a sealing ring (8) and an oil seal (2), and is characterized in that: the motor is characterized in that the gear box (3) is fixed at the front end of the motor (1), the driving bevel gear (5) and the driven bevel gear (6) are installed in the gear box (3) in an up-down manner, the gear box cover (9) is fixed at the front end of the gear box (3), the oil seal (2) is arranged in an oil seal (2) groove correspondingly formed between the motor (1) and the gear box (3), the sealing ring (8) is arranged in the gear box cover (9), an output shaft of the motor (1) penetrates through the oil seal (2) to extend into the gear box (3) and is fixedly connected with the driving bevel gear (5), the driven bevel gear (7) is rotatably installed on the gear box (3) and the gear box cover (9), the driven bevel gear (6) is fixed on the outer wall of the driven shaft (7), and the space in the gear box (3) is compact in a semi-vacuum state.

2. The pump of claim 1, wherein the pump has a sealed self priming gear pump: the driving bevel gear (5) and the driven bevel gear (6) adopt large-modulus positive displacement.

3. The pump of claim 2 having a sealed self priming gear pump, wherein: the output shaft of the motor (1) is parallel to the driven shaft (7).

4. A pump with sealed self priming gear pump according to claim 3, wherein: the gear box (3) is symmetrically provided with screws (4) left and right, and the gear box (3) is fixedly connected with the motor (1) through the screws (4) which are symmetrical.

5. The pump of claim 4, wherein the pump has a sealed self priming gear pump: the gear box cover (9) is provided with a plurality of stainless steel screws (10), and the gear box cover (9) is fixed on the front end face of the gear box (3) through the stainless steel screws (10).