CN212250455U

CN212250455U - Lubricating device for oil pump rotor

Info

Publication number: CN212250455U
Application number: CN202020765136.2U
Authority: CN
Inventors: 魏刚
Original assignee: Nanjing Jinniu Mechanical Manufacture Co ltd
Current assignee: Nanjing Jinniu Mechanical Manufacture Co ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2020-12-29
Anticipated expiration: 2030-05-11

Abstract

The utility model belongs to the technical field of mechanical equipment, in particular to an oil pump rotor lubricating device, which comprises a pump cover, the inner side of the pump cover is provided with a shell, the middle part of one side of the shell is provided with a slotted hole, the edge parts of two ends of one side of the shell are both provided with first oil inlet grooves, a second oil inlet groove is arranged at the bottom end of one side of the shell, guide holes are arranged in the middle parts of the inner sides of the first oil inlet groove and the second oil inlet groove, the first oil inlet groove and the second oil inlet groove facilitate the oil inlet of the oil pump, so that the oil can enter the slotted hole, so as to lubricate the inner rotor and the outer rotor, fully lubricate the periphery and the inside of the outer rotor and the inner rotor, finely filter the engine oil through the oil inlet hole and the fine filter screen, so that the impurities in the engine oil can be filtered, and the engine oil containing the impurities is prevented from entering the outer rotor and the inner rotor, thereby causing damage to the rotor.

Description

Lubricating device for oil pump rotor

Technical Field

The utility model relates to the technical field of mechanical equipment, specifically be an oil pump rotor lubricating arrangement.

Background

The inner rotor of the rotor type oil pump is fixed on a driving shaft, the outer rotor is arranged in an oil pump shell and can freely rotate, a certain eccentric distance is arranged between the inner rotor and the outer rotor, when the inner rotor rotates, the outer rotor is driven to rotate, the tooth profile of the rotor is designed to ensure that when the rotor rotates to any angle, the tooth profile lines of each tooth of the inner rotor and the outer rotor always form point contact with each other, so that four working cavities are formed between the inner rotor and the outer rotor, the volume of one working cavity is increased when the working cavity rotates from an oil inlet, vacuum is generated, engine oil is sucked through the oil inlet, the rotor continues to rotate, when the working cavity is communicated with an oil outlet, the volume in the cavity is reduced;

however, when the oil pump rotor is used, the traditional oil outlet hole is small in size, the outer rotor and the inner rotor cannot be fully lubricated all around and inside, meanwhile, when the engine oil contains impurities, the oil outlet hole can be blocked by the impurities, and tiny impurity particles can enter the space between the inner rotor and the outer rotor, so that the outer rotor and the inner rotor are blocked, and the service life of the rotor is further shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil pump rotor lubricating arrangement to solve the problem that above-mentioned background art provided.

In order to achieve the above object, the utility model provides a following technical scheme: an oil pump rotor lubricating device comprises a pump cover, wherein a shell is arranged on the inner side of the pump cover, a slotted hole is formed in the middle of one side of the shell, first oil inlet grooves are formed in the edge portions of two ends of one side of the shell, a second oil inlet groove is formed in the bottom end of one side of the shell, guide holes are formed in the middle of the inner sides of the first oil inlet groove and the second oil inlet groove, oil inlet holes are formed in the positions, close to the slotted hole, of the inner sides of the first oil inlet groove and the second oil inlet groove, and a layer of fine filter screen;

the improved pump cover is characterized in that lantern rings are welded on the top end and the bottom end side portion of the outer side of the shell, a cylinder is welded inside the lantern rings, screws are sleeved inside the cylinder, one ends of the screws are meshed with the pump cover and connected, a containing groove is formed in one side of the lantern rings, and nuts are meshed outside the other ends of the screws.

The further improvement lies in that: a driving shaft penetrates through the middle of the inner side of the pump cover, an inner rotor is sleeved outside the driving shaft, and an outer rotor is arranged outside the inner rotor.

The further improvement lies in that: the driving shaft, the inner rotor and the outer rotor are all located inside the slotted hole.

The further improvement lies in that: the thickness of casing is 4.3cm, the material of casing is made by stainless steel synthetic metal.

The further improvement lies in that: the diameter of the accommodating groove is larger than that of the nut, and the depth of the accommodating groove is equal to the thickness of the nut.

The further improvement lies in that: the radial distance between the outer side of the inner rotor and the inner side of the outer rotor is 2 cm.

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

1. the utility model discloses, be provided with the casing, through the effect of first oil feed groove and second oil feed groove, be convenient for oil pump oil feed, make machine oil can enter into the slotted hole inside, so that lubricate internal rotor, external rotor, make external rotor and inner rotor all around and inside can fully lubricate, rethread oil inlet and the effect of thin filter screen, can finely filter machine oil, so as to filter the impurity in the machine oil, avoid the machine oil that contains impurity to enter into external rotor and inner rotor, lead to impurity jam external rotor and inner rotor, further improve the lubricated effect of machine oil, to sum up, adopt this kind of structure to lubricate, make things convenient for machine oil can fully lubricate the oil pump rotor, improve its life;

2. the utility model discloses, be provided with the lantern ring, through the effect of drum, screw and nut, be convenient for install between this casing and the pump cover, the simple operation, the practicality is better, simultaneously through the effect of accomodating the groove, is convenient for accomodate the nut, has reduced its area that occupies for the casing is clean and tidy level and smooth more, has improved its pleasing to the eye degree.

Drawings

Fig. 1 is a front view of the structure of the present invention;

fig. 2 is a schematic view of the mounting structure of the housing of the present invention;

fig. 3 is a schematic view of the structure of the area a of the present invention.

In the figure: 1. a pump cover; 2. a housing; 3. a slot; 4. a first oil inlet groove; 5. a second oil inlet groove; 6. a guide hole; 7. an oil inlet hole; 8. a fine filter screen; 9. a collar; 10. a cylinder; 11. a screw; 12. a receiving groove; 13. a nut; 14. a drive shaft; 15. an inner rotor; 16. and an outer rotor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, 2 and 3, the present invention provides a technical solution: the utility model provides an oil pump rotor lubricating arrangement, including pump cover 1, 1 inboard of pump cover is provided with casing 2, the thickness of casing 2 is 4.3cm, the material of casing 2 is made by stainless steel synthetic metal, when being convenient for improve casing 2's hardness, its size has been reduced, slotted hole 3 has been seted up at 2 one side middle parts of casing, first inlet tank 4 has all been seted up at 2 one side both ends limit portions of casing, second inlet tank 5 has been seted up to 2 one side bottom of casing, guide hole 6 has all been seted up at 5 inboard middle parts of first inlet tank 4 and second inlet tank, inlet port 7 has all been seted up near slotted hole 3 positions department in 5 inboards of first inlet tank 4 and second inlet tank, inlet port 7 internally mounted has one deck fine filter screen 8.

2 outside tops of casing 2 and bottom limit portion all weld have the

lantern ring

9, 9 internal weld of lantern ring has drum 10, and drum 10 is inside to be cup jointed

screw

11, and 11 one ends of screw are connected with the meshing of pump cover 1, and 9 one sides of lantern ring have been seted up and have been accomodate

groove

12, and 11 other ends of screw outside meshing is connected with nut 13, and the diameter of accomodating groove 12 is greater than the diameter of nut 13, and the degree of depth of accomodating groove 12 equals the thickness of nut 13, is convenient for accomodate nut 13.

The driving shaft 14 penetrates through the middle of the inner side of the pump cover 1, the inner rotor 15 is sleeved outside the driving shaft 14, the outer rotor 16 is arranged outside the inner rotor 15, the outer rotor 16 can be driven to rotate when the inner rotor 15 rotates, the driving shaft 14, the inner rotor 15 and the outer rotor 16 are located inside the slotted hole 3, engine oil can enter the slotted hole 3 conveniently, the inner rotor 15 and the outer rotor 16 are lubricated, the radial distance between the outer side of the inner rotor 15 and the inner side of the outer rotor 16 is 2cm, and the engine oil can enter the joint of the inner rotor 15 and the outer rotor 16 conveniently to lubricate the engine oil.

The working principle is as follows: firstly, when the lubricating device is used, the lubricating device needs to be installed, the shell 2 is placed on one side of the pump cover 1, the driving shaft 14, the inner rotor 15 and the outer rotor 16 are all located inside the slotted hole 3, the screw 11 penetrates through the cylinder 10, the shell 2 and the pump cover 1 are meshed and connected through the screw 11, then the nut 13 and the screw 11 are meshed and connected, the nut 13 is moved into the containing groove 12, the shell 2 and the pump cover 1 are fixed, the lubricating device is convenient to operate and good in practicability, meanwhile, the nut 13 is convenient to contain under the action of the containing groove 12, the occupied area of the nut is reduced, the shell 2 is enabled to be neat and smooth, and the attractiveness of the lubricating device is improved;

then, the machine oil in the oil pump can enter the first oil inlet groove 4 and the second oil inlet groove 5 through the guide hole 6, and pass through the thin filter screen 8 in the oil inlet hole 7, and enter the inside of the slotted hole 3, so as to lubricate the inner rotor 15 and the outer rotor 16, so that the outer rotor 16 and the inner rotor 15 can be fully lubricated all around and inside, and the machine oil can be finely filtered under the action of the thin filter screen 8 in the oil inlet hole 7, so as to filter out impurities in the machine oil, thereby preventing the machine oil containing impurities from entering the outer rotor 16 and the inner rotor 15, causing the impurities to block the outer rotor 16 and the inner rotor 15, further improving the lubricating effect of the machine oil, and in sum, the structure is adopted for lubrication, so that the machine oil can fully lubricate the oil pump rotor, and the service life of the machine oil.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. An oil pump rotor lubricating device comprises a pump cover (1) and is characterized in that a shell (2) is arranged on the inner side of the pump cover (1), a slotted hole (3) is formed in the middle of one side of the shell (2), first oil inlet grooves (4) are formed in the edge portions of two ends of one side of the shell (2), a second oil inlet groove (5) is formed in the bottom end of one side of the shell (2), guide holes (6) are formed in the middle of the inner sides of the first oil inlet groove (4) and the second oil inlet groove (5), oil inlet holes (7) are formed in the positions, close to the slotted hole (3), of the inner sides of the first oil inlet groove (4) and the second oil inlet groove (5), and a layer of fine filter screen (8) is installed inside;

the improved pump cover is characterized in that a sleeve ring (9) is welded on the top end of the outer side of the shell (2) and the edge portion of the bottom end of the shell, a cylinder (10) is welded inside the sleeve ring (9), a screw (11) is sleeved inside the cylinder (10), one end of the screw (11) is meshed with the pump cover (1) to be connected, a containing groove (12) is formed in one side of the sleeve ring (9), and a nut (13) is meshed outside the other end of the screw (11).

2. The oil pump rotor lubricating apparatus according to claim 1, characterized in that: the pump cover is characterized in that a driving shaft (14) penetrates through the middle of the inner side of the pump cover (1), an inner rotor (15) is sleeved outside the driving shaft (14), and an outer rotor (16) is arranged outside the inner rotor (15).

3. The oil pump rotor lubricating apparatus according to claim 2, characterized in that: the driving shaft (14), the inner rotor (15) and the outer rotor (16) are all positioned in the slotted hole (3).

4. The oil pump rotor lubricating apparatus according to claim 1, characterized in that: the thickness of the shell (2) is 4.3cm, and the shell (2) is made of stainless steel synthetic metal.

5. The oil pump rotor lubricating apparatus according to claim 1, characterized in that: the diameter of the accommodating groove (12) is larger than that of the nut (13), and the depth of the accommodating groove (12) is equal to the thickness of the nut (13).

6. The oil pump rotor lubricating apparatus according to claim 2, characterized in that: the radial distance between the outer side of the inner rotor (15) and the inner side of the outer rotor (16) is 2 cm.