CN218093332U

CN218093332U - Integrated driving device for hydraulic pump and lubricating pump plunger unit

Info

Publication number: CN218093332U
Application number: CN202222767218.2U
Authority: CN
Inventors: 刘卫; 申正武; 凌匡; 韦俊强; 彭小燕
Original assignee: Zhejiang Liwei Intelligent Fluid Technology Co ltd
Current assignee: Zhejiang Liwei Intelligent Fluid Technology Co ltd
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2022-12-20
Anticipated expiration: 2032-10-20

Abstract

The utility model discloses an integrative drive arrangement of hydraulic pump and lubricating pump plunger unit, including grease casing, drive unit, lubricated mechanism and hydraulic pressure mechanism, the drive unit dress is in the grease casing, the drive unit includes motor and eccentric wheel, lubricated mechanism with the hydraulic pressure mechanism sharing the drive unit. Has the advantages that: the integrated driving device of the hydraulic pump and the lubricating pump plunger unit shares one driving unit, and can integrally drive the first plunger and the second plunger to move by driving the rotation of the eccentric wheel, so that the lubricating mechanism can be circularly and continuously supplied with oil, and meanwhile, the hydraulic mechanism can be continuously pressurized, and the cost is low; and the whole structure is stable in grease conveying, suitable for complex load working conditions and high in reliability.

Description

Integrated driving device for hydraulic pump and lubricating pump plunger unit

Technical Field

The utility model belongs to the technical field of wind power generation, concretely relates to integrative drive arrangement of hydraulic pump and lubricating pump plunger unit.

Background

At present, in the field of wind power generation, a bearing is dispersed and inconvenient to maintain, and faults caused by poor lubrication often occur in use.

Because the harsh operating environment of wind turbine generator system needs to carry each lubricating point with lubricating grease through centralized lubrication system, simultaneously because wind power generation need brake the wind wheel when overhauing, needs additionally to establish one set of braking system, runs lubricating system and braking system respectively simultaneously in the harsh environment, and is with high costs, and is difficult to long-time stable work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an integrative drive arrangement of hydraulic pump and lubricating pump plunger unit to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a hydraulic pump and lubricating pump plunger unit integrated driving device comprises a grease shell, a driving unit, a lubricating mechanism and a hydraulic mechanism, wherein the driving unit is arranged in the grease shell and comprises a motor and an eccentric wheel, and the lubricating mechanism and the hydraulic mechanism share the driving unit; the lubricating mechanism comprises a lubricating pump core shell, a first plunger and a first one-way valve core, the lubricating pump core shell is provided with a through cavity, the first plunger is arranged in the through cavity, the head end of the first plunger is sleeved with a first reset spring, the head of the lubricating pump core shell is provided with a through hole penetrating through the through cavity, the tail part of the lubricating pump core shell is provided with the first one-way valve core and a first one-way valve spring, the tail part of the lubricating pump core shell is provided with an oil outlet and is connected with an external pipeline, and the head end of the first plunger is tightly attached to the outer wall of the eccentric wheel; the hydraulic mechanism comprises a hydraulic pump core shell, a second plunger, a second one-way valve core and a hydraulic oil way, the second plunger is arranged at the front end in the hydraulic pump core shell, a second reset spring is arranged at the head end of the second plunger, a one-way valve core seat is arranged at the tail end of the hydraulic pump core shell, the second one-way valve core and the second one-way valve spring are arranged in the one-way valve core seat, a through hole communicated with the oil cavity of the grease shell is formed between the second plunger and the one-way valve core seat, and an oil outlet is formed in the tail portion of the one-way valve core seat and is connected with an external hydraulic braking element through the hydraulic oil way.

Preferably, the connection part of the motor and the grease shell is sealed by using a framework.

Preferably, the eccentric wheel, the first plunger head end and the second plunger head end are all made of wear-resistant materials.

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

1. the hydraulic pump and lubricating pump plunger unit integrated driving device shares one driving unit, and can integrally drive the first plunger and the second plunger to move by driving the eccentric wheel to rotate, so that the lubricating mechanism can be continuously supplied with oil circularly and the hydraulic mechanism can be continuously pressurized, and the cost is low; and the whole structure is stable in grease conveying, is suitable for complex load working conditions, and is high in reliability.

Drawings

FIG. 1 is a schematic sectional view of the front view of the present invention;

fig. 2 is a schematic view of the top view structure of the present invention.

In the figure: 1. a grease housing; 2. a motor; 3. an eccentric wheel; 4. lubricating the pump core housing; 5. a first plunger; 6. a first one-way valve element; 7. a first return spring; 8. a port; 9. a first check valve spring; 10. a hydraulic pump core housing; 11. a second plunger; 12. a second one-way valve element; 13. a hydraulic oil circuit; 14. a second return spring; 15. a one-way valve core seat; 16. a second check valve spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example 1: referring to fig. 1-2, the present invention provides a technical solution: a hydraulic pump and lubricating pump plunger unit integrated driving device comprises a grease shell 1, a driving unit, a lubricating mechanism and a hydraulic mechanism, wherein the driving unit is arranged in the grease shell 1 and comprises a motor 2 and an eccentric wheel 3, and the lubricating mechanism and the hydraulic mechanism share the driving unit; the lubricating mechanism comprises a lubricating pump core shell 4, a first plunger 5 and a first one-way valve core 6, the lubricating pump core shell 4 is provided with a through cavity, the first plunger 5 is arranged in the through cavity, the head end of the first plunger 5 is sleeved with a first return spring 7, the head of the lubricating pump core shell 4 is provided with a through hole 8 penetrating through the through cavity, the tail part of the lubricating pump core shell 4 is provided with the first one-way valve core 6 and a first one-way valve spring 9, the tail part of the lubricating pump core shell 4 is provided with an oil outlet and is connected with an external pipeline, and the head end of the first plunger 5 is tightly attached to the outer wall of the eccentric wheel 3; the hydraulic mechanism comprises a hydraulic pump core shell 10, a second plunger 11, a second one-way valve core 12 and a hydraulic oil path 13, the second plunger 11 is arranged at the front end in the hydraulic pump core shell 10, a second return spring 14 is arranged at the head end of the second plunger 11, a one-way valve core seat 15 is arranged at the tail end of the hydraulic pump core shell 10, the second one-way valve core 12 and a second one-way valve spring 16 are arranged in the one-way valve core seat 15, a through hole communicated with the oil chamber of the grease shell 1 is arranged between the second plunger 11 and the one-way valve core seat 15, and an oil outlet is arranged at the tail part of the one-way valve core seat 15 and is connected with an external hydraulic braking element through the hydraulic oil path 13; when a rated power supply is connected, the motor 2 drives the eccentric wheel 3 to rotate, and drives the first plunger 5 which is in contact with the eccentric wheel 3 to reciprocate under the action of the first return spring 7, so that the first plunger 5 stops plugging the through opening 8 when reaching the rightmost end, a low-pressure area is formed in a cavity on the right side of the first one-way valve core 6, grease enters the cavity on the right side of the first one-way valve core 6 through the through opening 8, then the grease in the cavity on the right side of the first one-way valve core 6 is pressed leftwards when the first plunger 5 moves to the leftmost end, so that the first one-way valve core 6 is pushed leftwards, and the grease is pressurized and then enters a lubricating point through an oil outlet and an external pipeline; when the first plunger 5 moves rightwards again, the first return spring 7 pushes back the first one-way valve core 6, and circulation is carried out on the same principle, so that continuous and stable grease conveying is realized; and when the eccentric wheel 3 rotates, the second plunger 11 contacted with the right side reciprocates under the action of the second return spring 14, when the second plunger 11 reaches the leftmost end, the gap between the second plunger 11 and the one-way valve core seat 15 is increased to form a low-pressure area, so that grease is sucked from the grease cavity of the grease shell 1 through the through hole, when the second plunger 11 is driven to move rightwards through the eccentric wheel 3, the second one-way valve core 12 is pushed open, the grease is pushed into the cavity of the one-way valve core seat 15, and the grease is conveyed to an external hydraulic braking element through the oil outlet through a hydraulic oil way 13 to work.

Specifically, the connection part of the motor 2 and the grease shell 1 is sealed by a framework; in this embodiment, grease is prevented from entering the motor 2 to damage the motor.

Specifically, the eccentric wheel 3, the head end of the first plunger 5 and the head end of the second plunger 11 are all made of wear-resistant materials; in the embodiment, the wear resistance of the eccentric wheel 3, the first plunger 5 and the second plunger 11 is enhanced, and the service life of the eccentric wheel is prolonged.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

The working principle is as follows: when a rated power supply is connected, the motor 2 drives the eccentric wheel 3 to rotate, and drives the first plunger 5 which is in contact with the eccentric wheel 3 to reciprocate under the action of the first return spring 7, so that the first plunger 5 stops plugging the through opening 8 when reaching the rightmost end, a low-pressure area is formed in a cavity on the right side of the first one-way valve core 6, grease enters the cavity on the right side of the first one-way valve core 6 through the through opening 8, then the grease in the cavity on the right side of the first one-way valve core 6 is pressed leftwards when the first plunger 5 moves to the leftmost end, so that the first one-way valve core 6 is pushed leftwards, and the grease is pressurized and then enters a lubricating point through an oil outlet and an external pipeline; when the first plunger 5 moves rightwards again, the first return spring 7 can push back the first one-way valve core 6, and circulation is carried out on the same principle, so that continuous and stable grease conveying is realized.

And when the eccentric wheel 3 rotates, the second plunger 11 contacted with the right side reciprocates under the action of the second return spring 14, when the second plunger 11 reaches the leftmost end, the gap between the second plunger 11 and the one-way valve core seat 15 is increased to form a low-pressure area, so that grease is sucked from the grease cavity of the grease shell 1 through the through hole, when the second plunger 11 is driven to move rightwards through the eccentric wheel 3, the second one-way valve core 12 is pushed open, the grease is pushed into the cavity of the one-way valve core seat 15, and the grease is conveyed to an external hydraulic braking element through the oil outlet through a hydraulic oil way 13 to work.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A hydraulic pump and lubricating pump plunger unit integrated driving device comprises a grease shell (1), a driving unit, a lubricating mechanism and a hydraulic mechanism, and is characterized in that the driving unit is arranged in the grease shell (1), the driving unit comprises a motor (2) and an eccentric wheel (3), and the lubricating mechanism and the hydraulic mechanism share the driving unit; the lubricating mechanism comprises a lubricating pump core shell (4), a first plunger (5) and a first one-way valve core (6), the lubricating pump core shell (4) is provided with a through cavity, the first plunger (5) is arranged in the through cavity, a first reset spring (7) is sleeved at the head end of the first plunger (5), a through hole (8) penetrating through the through cavity is formed in the head part of the lubricating pump core shell (4), the first one-way valve core (6) and a first one-way valve spring (9) are arranged in a through cavity at the tail part of the lubricating pump core shell (4), an oil outlet is formed in the tail part of the lubricating pump core shell (4) and is connected with an external pipeline, and the head end of the first plunger (5) is tightly attached to the outer wall of the eccentric wheel (3); the hydraulic mechanism comprises a hydraulic pump core shell (10), a second plunger (11), a second one-way valve core (12) and a hydraulic oil way (13), wherein the second plunger (11) is installed at the front end in the hydraulic pump core shell (10), a second reset spring (14) is installed at the head end of the second plunger (11), a one-way valve core seat (15) is installed at the tail end of the hydraulic pump core shell (10), the second one-way valve core (12) and a second one-way valve spring (16) are installed in the one-way valve core seat (15), a through hole communicated with an oil cavity of the grease shell (1) is formed between the second plunger (11) and the one-way valve core seat (15), an oil outlet is formed in the tail portion of the one-way valve core seat (15), and the hydraulic oil way (13) is connected with an external hydraulic braking element.

2. The integrated drive device of a hydraulic pump and a lubricating pump plunger unit according to claim 1, characterized in that the connection of the motor (2) and the grease housing (1) uses a skeleton seal.

3. A hydraulic pump and lubricating pump plunger unit integrated drive as claimed in claim 1, characterised in that the eccentric (3), the head end of the first plunger (5) and the head end of the second plunger (11) are made of wear resistant material.