CN212563634U

CN212563634U - Gear oil pump

Info

Publication number: CN212563634U
Application number: CN202020361621.3U
Authority: CN
Inventors: 高志雄; 谢振东; 张寅虎; 马杰
Original assignee: Weihai Chongding Utopia Intelligent Equipment Co ltd
Current assignee: Weihai Chongding Utopia Intelligent Equipment Co ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2021-02-19
Anticipated expiration: 2030-03-20

Abstract

The utility model relates to a gear oil pump, it has solved gear pump gear end face and has lacked the technical problem that unusual wearing and tearing appear easily at the initial during operation of oil pump, it is equipped with the pump body, the midbody, the pump cover, long spacer ring, short spacer ring, the oil pump gear, pump shaft and bearing, long spacer ring is installed between the pump body and midbody, short spacer ring is installed between the pump cover and midbody, the pump shaft passes the oil pump gear, it is whole to have constituteed the gear pump jointly, characterized by, be equipped with oil pump gear contact position on the pump body and inlay the groove, it installs and is equipped with wear-resisting curb plate in the groove to inlay, wear-resisting curb plate comprises the three-layer, wear-resisting curb plate superficial layer. The utility model discloses can extensively be applied to improvement gear oil pump life occasion.

Description

Gear oil pump

Technical Field

The utility model relates to a gear oil pump.

Background

The existing gear oil pump in the existing market has an independent side plate and does not have the independent side plate, and has the almost bimetal form of the independent side plate, the surface is wear-resistant metal, and the substrate is the steel plate. The bimetal single side plate can reduce the abnormal abrasion of the end face of the gear and the side wall of the pump cavity of the oil pump, but the service life of the bimetal side plate gear pump still has a space for improving.

Disclosure of Invention

The utility model discloses a solve current gear pump gear end face and lack the technical problem that unusual wearing and tearing appear easily at the initial during operation of oil pump, provide a furthest's promotion gear end face and the gear oil pump of the wear resistance between the pump body.

The utility model provides a gear oil pump, be equipped with the pump body, the midbody, the pump cover, long spacer ring, short spacer ring, the oil pump gear, pump shaft and bearing, long spacer ring is installed and is constituted first working chamber between the pump body and midbody, short spacer ring is installed and is constituted the second working chamber between pump cover and midbody, the pump shaft passes the oil pump gear, the pump shaft is located first working chamber and second working chamber respectively with the oil pump gear, characterized by, be equipped with oil pump gear contact position on the pump body and inlay the groove, it installs the built-in wear-resisting curb plate that is equipped with in the groove, wear-resisting curb plate comprises the three-layer, wear-resisting curb plate superficial layer is engineering plastics, wear-resisting curb plate intermediate.

Preferably, the height difference between the wear-resistant side plate and the plane of the pump body is less than 0.02 mm.

Preferably, the connection mode of the wear-resistant side plate and the pump body is glue bonding.

Preferably, the wear-resistant side plate and the pump body are fastened by using countersunk screws, taper pins or pins.

Preferably, the surface layer of the wear-resistant side plate is made of modified polytetrafluoroethylene, polyformaldehyde and fiber mixture or modified polyether ether ketone, and the thickness of the surface layer is 0.02mm-0.2 mm.

Preferably, the intermediate layer is brass, tin bronze or aluminium bronze, the intermediate layer having a thickness of 0.02mm to 1 mm.

The utility model has the advantages that: the utility model has the main advantages that the problem of gear end face and the pump body production abnormal wear appear easily at the oil pump when the oil pump is out of service is solved, adopt this scheme can improve the oil-out operating time that the oil pump originally allows from 10 minutes to 1 hour, promoted the ability of this type gear pump oil-out work greatly, improved the reliability of work.

Drawings

FIG. 1 is a diagram showing the effect of the installation of the wear-resistant side plate and the pump body of the present invention;

FIG. 2 is an exploded view of the wear-resistant side plate and the pump body of the present invention;

fig. 3 is a schematic view of the structure of the wear-resistant side plate of the present invention.

Description of the symbols of the drawings:

1. a pump body; 11. embedding a groove; 2. a wear-resistant side plate; 21. a surface layer; 22. an intermediate layer; 23. a base layer.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, so that those skilled in the art can easily implement the present invention.

Example 1: the utility model discloses a gear oil pump comprises the pump body, midbody, pump cover, long spacer ring, short spacer ring, gear wheel, pinion, pump shaft and bearing etc. and long spacer ring is installed between the pump body and midbody, has constituteed the working chamber of gear wheel jointly, and the working chamber of pinion has been constituteed jointly to short spacer ring installation between pump cover and midbody. The pump shafts are divided into a long shaft and a short shaft, the two pump shafts respectively penetrate through the large gear and the small gear, the long shaft is a driving shaft, and the short shaft is a driven shaft, so that the whole gear pump is formed. Because the pump body, the intermediate body and the pump cover are all in contact with the end face of the gear, dry friction is easy to occur during the operation of the oil pump, so that the contact surface is abnormally abraded, and wear-resistant side plates are all embedded on the pump body, the intermediate body and the pump cover. As shown in fig. 1-2, the utility model discloses processing has the groove 11 of inlaying on the pump body 1 to the specification and size of groove 11 is inlayed in accurate control, installs the wear-resisting curb plate 2 that the precision finishing is good in inlaying the groove 11, and wear-resisting curb plate 2 is less than 0.02mm with the planar difference in height of the pump body 1. The connection mode of the wear-resistant side plate 2 and the pump body 1 can be adhesive bonding, countersunk head screw fastening, taper pin positioning fastening or pin fastening connection.

As shown in fig. 3, which is a schematic structural diagram of the wear-resistant side plate 2, the wear-resistant side plate 2 is composed of three layers, including a surface layer 21, a middle layer 22 and a base layer 23, wherein the surface layer 21 is made of engineering plastics, such as modified polytetrafluoroethylene, a mixture of polyformaldehyde and fiber, and modified polyetheretherketone, and the thickness of the surface layer 21 is 0.02mm-0.2 mm; the intermediate layer 22 is made of copper alloy, such as brass, tin bronze, aluminum bronze and the like, and the thickness of the intermediate layer 22 is 0.02mm-1 mm; the base layer 23 is a steel plate.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, as various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the scope defined by the claims of the present invention shall be within the protection scope of the present invention.

Claims

1. The utility model provides a gear oil pump, its is equipped with the pump body, midbody, pump cover, long spacer ring, short spacer ring, oil pump gear, pump shaft and bearing, long spacer ring is installed constitute first working chamber between the pump body and the midbody, short spacer ring is installed constitute the second working chamber between pump cover and the midbody, the pump shaft passes the oil pump gear, the pump shaft is located respectively with the oil pump gear first working chamber and second working chamber, characterized by, on the pump body with oil pump gear contact position is equipped with inlays the groove, inlay the built-in wear-resisting curb plate that is equipped with in groove, wear-resisting curb plate comprises the three-layer, wear-resisting curb plate superficial layer is engineering plastics, wear-resisting curb plate intermediate level is the copper alloy, wear-resisting curb plate basic unit is the steel sheet.

2. The gear oil pump of claim 1, wherein the difference in height between the wear side plate and the plane of the pump body is less than 0.02 mm.

3. The gear oil pump of claim 2, wherein the wear-resistant side plate is attached to the pump body by gluing.

4. The gear oil pump of claim 2, wherein the wear-resistant side plate is fastened with the pump body by using a countersunk head screw, taper pin positioning fastening or pin fastening.

5. The gear oil pump of claim 1, wherein the surface layer of the wear-resistant side plate is modified polytetrafluoroethylene, a mixture of polyoxymethylene and fiber, or modified polyetheretherketone, and the thickness of the surface layer is 0.02mm to 0.2 mm.

6. The gear oil pump of claim 1, wherein the intermediate layer is brass, tin bronze, or aluminum bronze, and the intermediate layer has a thickness of 0.02mm to 1 mm.