阅读说明：本技术 一种用于燃油及机油联体同步的输油泵装置 (Oil transfer pump device for synchronous connection of fuel oil and engine oil ) 是由 吉文斌 黄萧 陈跃邦 李传金 于 2019-11-28 设计创作，主要内容包括：本发明涉及一种用于燃油及机油联体同步的输油泵装置,包括：机油泵体,机油泵体盖,燃油泵体,盖板；所述机油泵体盖固定在所述机油泵体上；所述燃油泵体通过所述机油泵体盖固定连接；所述盖板固定在所述燃油泵体的后端；所述机油泵体内设有传动轴；所述传动轴的前端设有传动销；所述传动轴的后端设有固定销铆；所述燃油泵体上设有骨架油封；所述机油泵体,燃油泵体通过所述传动轴一体连接。本发明通过机油泵体,燃油泵体的一体型设计,方便客户安装,传动轴带动机油泵体,燃油泵体同时工作,节省空间,降低加工成本,并通过定位销定位,螺栓加固,通过销联接内外转子,保护传动扭矩过大,结构简单,工作稳定。(The invention relates to a fuel delivery pump device for the conjuncted synchronization of fuel oil and engine oil, comprising: the engine oil pump body, the engine oil pump body cover, the fuel oil pump body and the cover plate; the engine oil pump body cover is fixed on the engine oil pump body; the fuel pump body is fixedly connected with the engine oil pump body cover; the cover plate is fixed at the rear end of the fuel pump body; a transmission shaft is arranged in the engine oil pump body; the front end of the transmission shaft is provided with a transmission pin; a fixed pin rivet is arranged at the rear end of the transmission shaft; a framework oil seal is arranged on the fuel pump body; the engine oil pump body and the fuel oil pump body are integrally connected through the transmission shaft. The oil pump body and the fuel pump body are integrally designed, so that the oil pump is convenient for customers to install, the transmission shaft drives the oil pump body and the fuel pump body to work simultaneously, the space is saved, the processing cost is reduced, the oil pump body is positioned by the positioning pin and reinforced by the bolt, the inner rotor and the outer rotor are connected by the pin, the overlarge transmission torque is protected, the structure is simple, and the operation is stable.)

1. A fuel delivery pump device for synchronizing fuel and engine oil is characterized by comprising an engine oil pump body, an engine oil pump body cover, a fuel oil pump body and a cover plate;

the engine oil pump body cover is fixed on the engine oil pump body; the fuel pump body is fixedly connected with the engine oil pump body cover; the cover plate is fixed at the rear end of the fuel pump body; a transmission shaft is arranged in the engine oil pump body; the front end of the transmission shaft is provided with a transmission pin; a fixed pin rivet is arranged at the rear end of the transmission shaft; a framework oil seal is arranged on the fuel pump body; the engine oil pump body and the fuel oil pump body are integrally connected through the transmission shaft.

2. The fuel delivery pump device for the conjuncted synchronization of fuel oil and engine oil according to claim 1, characterized in that: an oil pump inner rotor and an oil pump outer rotor are arranged in the oil pump body; and the oil pump inner rotor and the oil pump outer rotor are fixed through fixing pin rivets.

3. The fuel delivery pump device for the conjuncted synchronization of fuel oil and engine oil according to claim 1, characterized in that: a fuel pump inner rotor and a fuel pump outer rotor are arranged in the fuel pump body; the fuel pump inner rotor and the fuel pump outer rotor are fixed through a transmission pin.

4. The fuel delivery pump device for the conjuncted synchronization of fuel oil and engine oil according to claim 1, characterized in that: the engine oil pump body is provided with a positioning pin; the engine oil pump body is connected with the engine oil pump body cover and the fuel oil pump body in a positioning mode through positioning pins.

5. The fuel delivery pump device for the conjuncted synchronization of fuel oil and engine oil according to claim 2, characterized in that: the middle of the oil pump inner rotor and the oil pump outer rotor is provided with a partition plate; and a sealing ring is arranged on the partition plate.

6. The fuel delivery pump device for the conjuncted synchronization of fuel oil and engine oil according to claim 1, characterized in that: and an overflow valve is arranged on the engine oil pump body.

7. The fuel delivery pump device for the conjuncted synchronization of fuel oil and engine oil according to claim 1, characterized in that: the engine oil pump body is provided with a fixing bolt; the engine oil pump body cover is provided with a fixing hole on the fuel oil pump body.

8. The fuel delivery pump device for the conjuncted synchronization of fuel oil and engine oil according to claim 1, characterized in that: deep groove ball bearings are arranged in the engine oil pump body and the fuel oil pump body.

Technical Field

The invention relates to the field of oil transfer pumps, in particular to an oil transfer pump device for synchronizing fuel oil and engine oil in a combined manner.

Background

The existing oil transfer pump is in the working process, the transmission shaft often can generate certain shaking due to the simplicity of a fixing mode, the working instability is caused, the phenomenon of oil penetration can be generated inside the pump body, the oil channeling problem and the like can also be generated at the two ends of engine oil and diesel oil, the internal rotor sometimes can also shake, the problem of deviation working position and the like can be caused, the abrasion can also be generated possibly after the internal rotor is used for a long time, and the stability of the working stability is not well guaranteed. Therefore, a fuel delivery pump device for synchronizing fuel and engine oil conjunctively, which has stable work, high work efficiency and simple structure, is needed.

Disclosure of Invention

The invention aims to provide an oil delivery pump device for synchronizing fuel oil and engine oil in a combined manner, which has the advantages of stable work, high work efficiency and simple structure.

In order to ensure stable work and high work efficiency in the using process, the invention relates to an oil delivery pump device for the conjuncted synchronization of fuel oil and engine oil, which comprises:

the engine oil pump body, the engine oil pump body cover, the fuel oil pump body and the cover plate;

the engine oil pump body cover is fixed on the engine oil pump body; the fuel pump body is fixedly connected with the engine oil pump body cover; the cover plate is fixed at the rear end of the fuel pump body; a transmission shaft is arranged in the engine oil pump body; the front end of the transmission shaft is provided with a transmission pin; a fixed pin rivet is arranged at the rear end of the transmission shaft; a framework oil seal is arranged on the fuel pump body; the engine oil pump body and the fuel oil pump body are integrally connected through the transmission shaft.

The oil pump body is driven by the transmission shaft, the fuel pump body works simultaneously, space is saved, processing cost is reduced, the oil pump body is positioned by the positioning pin and the bolts are reinforced, displacement of the oil transfer pump caused by shaking in operation is prevented, the inner rotor and the outer rotor are connected by the pins, and overlarge transmission torque is protected.

Further, an oil pump inner rotor and an oil pump outer rotor are arranged in the oil pump body; and the oil pump inner rotor and the oil pump outer rotor are fixed through fixing pin rivets. The front end of the transmission shaft drives the inner rotor and the outer rotor of the oil delivery pump through the transmission pin, and the rear end of the transmission shaft is riveted with the fixing pin to fix the inner rotor and the outer rotor of the oil delivery pump, so that the axial distance of the transmission shaft is fixed, and the movement cannot be generated.

Further, a fuel pump inner rotor and a fuel pump outer rotor are arranged in the fuel pump body; the fuel pump inner rotor and the fuel pump outer rotor are fixed through a transmission pin. The transmission pin is used for fixing, so that the transmission torque is protected from being too large.

Furthermore, a positioning pin is arranged on the engine oil pump body; the engine oil pump body is connected with the engine oil pump body cover and the fuel oil pump body in a positioning mode through positioning pins.

Furthermore, a partition plate is arranged in the middle of the oil pump inner rotor and the oil pump outer rotor; and a sealing ring is arranged on the partition plate. The inner rotor and the outer rotor of the oil pump are separated by a partition plate, and the two sides of the partition plate are respectively sealed with the engine oil by O-shaped rings, so that the axial sealing of the two sides of the partition plate is ensured, and oil leakage is avoided.

Furthermore, an overflow valve is arranged on the engine oil pump body. And pressure oil is ensured to flow back to the oil inlet cavity through the safety valve when the oil supply pressure of the fuel pump body is overhigh, so that the safety protection effect is realized.

Further, a fixing bolt is arranged on the engine oil pump body; the engine oil pump body cover is provided with a fixing hole on the fuel oil pump body. Through the locating pin location, the bolt is consolidated, prevents that the fuel delivery pump from producing the displacement because of the shake in service.

Furthermore, deep groove ball bearings are arranged in the engine oil pump body and the fuel oil pump body. The deep groove ball bearing supports the inner rotor and the outer rotor at two ends to stably drive.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a structural view of an oil transfer pump device for synchronizing a combined fuel oil and engine oil according to the present invention.

The corresponding part names indicated by the numbers in the figures:

1. an engine oil pump body; 2. a seal ring; 3. an outer rotor of the oil pump; 4. an inner rotor of the oil pump; 5. a fuel pump body; 6. a drive shaft; 7. fixing a pin rivet; 8. an engine oil pump body cover; 9. positioning pins; 10. fixing the bolt; 11. a deep groove ball bearing; 12. framework oil seal; 13. an outer rotor of a fuel pump; 14. an inner rotor of a fuel pump; 15. a cover plate; 16. a drive pin; 17. a fixing hole; 18. an overflow valve; 19. a separator.

Detailed Description

The present invention will be further described in detail with reference to the following specific examples:

the invention aims to provide an oil delivery pump device for synchronizing fuel oil and engine oil in a combined manner, which has the advantages of stable work, high work efficiency and simple structure.

As shown in fig. 1, in order to ensure stable operation and high operation efficiency during the use process, the invention relates to an oil transfer pump device for the conjuncted synchronization of fuel oil and engine oil, which comprises:

the engine oil pump body 1, the engine oil pump body cover 8, the fuel oil pump body 5 and the cover plate 15;

the engine oil pump body 1 is fixed on the engine oil pump body 1 in a covering manner; the fuel pump body 5 is fixedly connected with the engine oil pump body cover 8; the cover plate 15 is fixed at the rear end of the fuel pump body 5; a transmission shaft 6 is arranged in the engine oil pump body 1; the front end of the transmission shaft 6 is provided with a transmission pin 16; a fixed pin rivet 7 is arranged at the rear end of the transmission shaft 6; a framework oil seal 12 is arranged on the fuel pump body 5; the engine oil pump body 1 and the fuel oil pump body 5 are integrally connected through the transmission shaft 6.

The oil pump body 1 and the fuel pump body 5 are integrally designed, only three mounting hole bolts of the oil pump body 1 need to be screwed, installation by a customer is facilitated, the transmission shaft 6 drives the oil pump body 1, the fuel pump body 5 works simultaneously, space is saved, machining cost is reduced, the oil pump body 1 and the fuel pump body 5 are positioned by the positioning pin 9 and the fixing bolt 10 is reinforced, displacement of the fuel pump body 5 caused by shaking in operation is prevented, the inner rotor and the outer rotor are connected through the pin, transmission torque is protected from being too large, the structure is simple, and operation is stable.

Further, an oil pump inner rotor 4 and an oil pump outer rotor 3 are arranged in the oil pump body 1; the oil pump inner rotor 4 and the oil pump outer rotor 3 are fixed through fixing pin rivets 7. The front end of the transmission shaft 6 drives the inner rotor and the outer rotor of the oil delivery pump through the transmission pin 16, and the rear end of the transmission shaft fixes the inner rotor and the outer rotor of the oil pump through the fixing pin 7, so that the axial distance of the transmission shaft 6 is fixed, and the movement cannot be generated.

Further, a fuel pump inner rotor 14 and a fuel pump outer rotor 14 are arranged in the fuel pump body 5; the fuel pump inner rotor 14 and the fuel pump outer rotor 13 are fixed through a driving pin 16. And the transmission pin 16 is used for fixing, so that the transmission torque is protected from being too large.

Further, a positioning pin 9 is arranged on the engine oil pump body 1; the engine oil pump body 1 is connected with the engine oil pump body cover 8 and the fuel oil pump body 5 in a positioning mode through the positioning pin 9.

Furthermore, a partition plate 19 is arranged in the middle of the oil pump inner rotor 4 and the oil pump outer rotor 3; and a sealing ring 2 is arranged on the partition plate 19. The inner rotor and the outer rotor of the oil pump are separated by a partition plate 19, and the two sides of the partition plate 19 are respectively sealed with the oil by O-shaped rings, so that the axial sealing of the two sides of the partition plate 19 is ensured, and oil leakage is avoided.

Further, an overflow valve 18 is arranged on the engine oil pump body 1. And the pressure oil is ensured to flow back to the oil inlet cavity through the safety valve when the oil supply pressure of the fuel pump body 5 is overhigh, so that the safety protection effect is realized.

Further, a fixing bolt 10 is arranged on the engine oil pump body 1; the engine oil pump body cover 8 and the fuel oil pump body 5 are provided with fixing holes 17. The positioning pin 9 is used for positioning, and the bolt is used for reinforcing, so that the fuel pump body 5 is prevented from generating displacement due to shaking in the operation process.

Further, deep groove ball bearings 11 are arranged in the engine oil pump body 1 and the fuel oil pump body 5. The deep groove ball bearing 11 supports the inner and outer rotors at two ends for stable transmission.

In actual operation, when a diesel and diesel integrated oil delivery pump is installed in a high-pressure oil pump, a camshaft of the high-pressure pump drives a transmission shaft 6 to drive an oil pump inner rotor 4 and an oil pump outer rotor 3 through a fixed pin rivet 7, the oil pump inner rotor 13 and an oil pump outer rotor 14 are driven to rotate together through a transmission pin 16, outer teeth of the inner rotor and inner teeth of the outer rotor are meshed in a staggered mode, under the action of a flow distribution disc formed by an oil inlet low-pressure kidney-shaped groove and an oil outlet high-pressure kidney-shaped groove of a pump body, a tooth groove cavity formed by the inner rotor and the outer rotor continuously expands in a tooth groove cavity area of; and the pressure oil discharge process is formed when the tooth space cavity formed by the inner rotor and the outer rotor is continuously reduced in the oil outlet high-pressure kidney-shaped groove area.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.