阅读说明：本技术 一种分体式柱塞结构 (Split type plunger structure ) 是由 金龙飞 于 2020-08-31 设计创作，主要内容包括：本发明公开一种分体式柱塞结构,包括柱塞本体,所述柱塞本体中部开设有轴承卡槽,所述轴承卡槽内开设有小平面,所述小平面两侧开设有小台阶,所述柱塞本体两端对称开设有中空的连接管,所述连接管上套设有陶瓷套管,所述连接管外端通过螺纹连接有锁紧螺丝,所述轴承卡槽两侧的壁上镶嵌有耐磨合金,所述连接管和轴承卡槽之间的柱塞本体上开设有环形凸起,所述小台阶的高度为0.5-1.5mm。本发明所述的一种分体式柱塞结构,解决传统柱塞表面容易磨损,两端容易生锈,轴承平面容易磨损的问题。(The invention discloses a split type plunger structure which comprises a plunger body, wherein a bearing clamping groove is formed in the middle of the plunger body, a small plane is formed in the bearing clamping groove, small steps are formed in two sides of the small plane, hollow connecting pipes are symmetrically formed in two ends of the plunger body, a ceramic sleeve is sleeved on each connecting pipe, the outer ends of the connecting pipes are connected with locking screws through threads, wear-resistant alloy is embedded on the walls of the two sides of the bearing clamping groove, an annular bulge is formed in the plunger body between each connecting pipe and the corresponding bearing clamping groove, and the height of each small step is 0.5-1.5 mm. The split plunger structure provided by the invention solves the problems that the surface of the traditional plunger is easy to wear, two ends of the traditional plunger are easy to rust, and the plane of a bearing is easy to wear.)

1. A split type plunger structure which characterized in that: including plunger body (1), bearing draw-in groove (2) have been seted up at plunger body (1) middle part, facet (3) have been seted up in bearing draw-in groove (2), little step (4) have been seted up to facet (3) both sides, hollow connecting pipe (5) have been seted up to plunger body (1) both ends symmetry, the cover is equipped with ceramic sleeve (6) on connecting pipe (5), there are locking screw (7) connecting pipe (5) outer end through threaded connection, it has wear-resisting alloy (8) to inlay on the wall of bearing draw-in groove (2) both sides, annular arch (9) have been seted up on plunger body (1) between connecting pipe (5) and bearing draw-in groove (2), the height of little step (4) is 0.5-1.5 mm.

2. The split plunger structure of claim 1, wherein: the locking screw (7) comprises a screw rod (10) and a nut (11), and an inner hexagonal head (12) is arranged on the nut (11).

3. The split plunger structure of claim 2, wherein: the joint of the screw rod (10) and the screw cap (11) is sleeved with a rubber sealing ring (13).

4. The split plunger structure of claim 1, wherein: the outer diameter of the ceramic sleeve (6) is equal to that of the annular bulge (9).

5. The split plunger structure of claim 1, wherein: the outer diameters of the ceramic sleeve (6) and the nut (11) are equal.

6. The split plunger structure of claim 1, wherein: and a small convex ring (14) is arranged at the joint of the annular bulge (9) and the connecting pipe (5).

7. The split plunger structure of claim 1, wherein: the edge of the upper end of the annular bulge (9) close to the connecting pipe (5) is provided with a chamfer (15).

8. The split plunger structure of claim 1, wherein: the height of the small step (4) is 1 mm.

Technical Field

The invention relates to the field of plungers, in particular to a split type plunger structure.

Background

Traditional plunger is generally made by single metal, and the plunger constantly round trip movement in the plunger chamber causes plunger surface wear easily, influences the life of whole water pump, and the plunger both ends are long-term and water contact, rust corrosion easily, and whole bearing plane and plunger contact have increased the degree of wear of bearing, influence the life of bearing.

Disclosure of Invention

The invention aims to provide a split type plunger structure, which solves the problems that the surface of a traditional plunger is easy to wear, two ends of the traditional plunger are easy to rust, and a bearing plane is easy to wear.

In order to achieve the purpose, the invention provides the technical scheme that: the plunger comprises a plunger body, a bearing clamping groove is formed in the middle of the plunger body, a small plane is formed in the bearing clamping groove, small steps are formed in two sides of the small plane, hollow connecting pipes are symmetrically formed in two ends of the plunger body, a ceramic sleeve is sleeved on each connecting pipe, the outer ends of the connecting pipes are connected with locking screws through threads, abrasion-resistant alloy is inlaid on the walls of two sides of the bearing clamping groove, annular protrusions are formed in the plunger body between each connecting pipe and the corresponding bearing clamping groove, and the height of each small step is 0.5-1.5 mm.

Furthermore, the locking screw comprises a screw rod and a nut, and an inner hexagon is arranged on the nut.

Furthermore, a rubber sealing ring is sleeved at the joint of the screw rod and the screw cap.

Further, the outer diameter of the ceramic bushing and the outer diameter of the annular protrusion are equal.

Further, the outer diameters of the ceramic sleeve and the nut are equal.

Furthermore, a small convex ring is arranged at the joint of the annular bulge and the connecting pipe.

Furthermore, the edge of the annular bulge, which is close to the upper end of the connecting pipe, is provided with a chamfer.

Further, the height of the small step is 1 mm.

The invention has the beneficial effects that: a split plunger structure is provided with small steps, so that the contact area between a bearing plane and a plunger is reduced, and the bearing abrasion is reduced; the ceramic sleeve is arranged to increase the wear resistance of the surface of the bearing; the wear-resistant alloy is arranged, so that the wear-resistant strength of the wall of the bearing clamping groove is improved; set up locking screw and make things convenient for the dismouting, and locking screw makes for the stainless steel, places plunger both ends and rusts.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is an assembly view of the present invention;

FIG. 3 is a schematic view of the structure of the boss and the connection pipe according to the present invention;

fig. 4 is a schematic view of the structure of the locking screw of the present invention.

Detailed Description