Splicing type hydraulic oil cylinder guide ring

Abstract

The utility model relates to the technical field of oil cylinder sealing elements, in particular to a splicing type hydraulic oil cylinder guide ring which comprises an elastic ring and a splicing ring, a butt joint groove is formed in the side wall face of the elastic ring, an inclined opening is formed in the splicing ring, and the butt joint groove is communicated with the butt joint groove. A convex lip of a trapezoidal structure is arranged on one side of each splicing ring, a groove of a trapezoidal structure is formed in the other side of each splicing ring, the splicing rings of a certain number are mutually inserted through matching of the convex lips and the grooves, and the convex lip located on the outermost side is inserted into the butt joint groove; the guide ring structure has the advantages of being capable of adapting to different guide ring groove widths, high in adaptation flexibility, good in lubricating effect, beneficial to machining due to the structure and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of oil cylinder sealing element, concretely is a spliced hydraulic oil cylinder guide ring. BACKGROUND

[0002] The guide ring is classified into polyformaldehyde, phenolic cloth resin and polytetrafluoroethylene filled bronze powder and a plurality of materials, the guide ring plays a supporting and guiding role on the piston rod and the piston, can avoid metal friction between the piston rod, the guide sleeve, the piston and the cylinder side wall and damage, and is one of important components in the hydraulic cylinder sealing assembly.

[0003] The installation groove width of the hydraulic cylinder guide ring has a plurality of specifications according to the size of the oil cylinder, and is limited by the personal experience of different technicians, so that the wideband series of the guide ring is numerous, and the corresponding width specification of the guide ring is difficult to find in time when the hydraulic cylinder is maintained, therefore, it is necessary to design a guide ring with width adaptability. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model provides a spliced hydraulic oil cylinder guide ring.

[0005] The utility model discloses the following technical scheme, a spliced hydraulic oil cylinder guide ring, including elastic ring and splicing ring, the butt joint groove is seted up to the elastic ring lateral wall surface, be provided with an inclined opening on the splicing ring, the splicing ring one side is provided with the convex lip of trapezoidal structure, the other side is provided with the recess of trapezoidal structure, a certain number of splicing rings are mutually inserted by the cooperation of convex lip and recess, the convex lip of the outermost side is inserted in the butt joint groove.

[0006] Further, the cross section of the butt joint groove is horn-shaped, and the groove bottom of the butt joint groove is circularly arc-shaped.

[0007] Further, the working surface of the splicing ring is provided with oil grooves, and the oil grooves are arranged at equal intervals and are inclined at a certain angle.

[0008] Further, a certain number of oil holes are distributed on the oil grooves, and the cross section of the oil hole is hemispherical.

[0009] In summary, the utility model has the beneficial effects of being suitable for different guide ring groove widths, high adaptability, good lubrication effect, and structure facilitating processing. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the whole cross section structure schematic view of the utility model under the working condition.

[0011] Figure 2The elastic ring cross section structure schematic view of the utility model.

[0012] Figure 3 The splicing ring front view structure schematic view of the utility model.

[0013] Figure 4 The splicing ring cross section structure schematic view of the utility model.

[0014] Figure 5 The oil pocket cross section structure schematic view of the utility model.

[0015] The marks in the drawing are: 1, elastic ring;11, butt joint groove;2, splicing ring;21, convex lip;22, recess;23, oil groove;24, oil pocket. DETAILED DESCRIPTION

[0016] In order to make the technical means, creation features, purposes and effects realized by the utility model easy to understand, the following will clearly and completely describe the technical scheme in the specific embodiment of the utility model, so as to further illustrate the utility model. Obviously, the specific embodiment described is only a part of the embodiment of the utility model, rather than all the modes.

[0017] Referring to Figure 1 , Figure 2 and Figure 3 , a splicing type hydraulic oil cylinder guide ring, comprising an elastic ring 1 and a splicing ring 2, the side wall surface of the elastic ring 1 is provided with a butt joint groove 11, the splicing ring 2 is provided with an inclined opening, one side of the splicing ring 2 is provided with a convex lip 21 of trapezoidal structure, the other side is provided with a recess 22 of trapezoidal structure, a certain number of splicing rings 2 are inserted and connected with each other through the cooperation of the convex lip 21 and the recess 22, the convex lip 21 located at the outermost side is inserted into the butt joint groove 11, in a specific embodiment, according to the width of the guide ring groove, a corresponding number of splicing rings 2 are selected, first, the elastic ring 1 is sleeved into the guide ring groove, and is tightly pressed to the side wall of the guide ring groove, then, one splicing ring 2 is clamped in the guide ring groove, is pushed and makes the convex lip 21 thereof inserted into the butt joint groove 11 of the elastic ring 1, then, the next splicing ring 2 is clamped, the convex lip 21 of the latter is inserted into the recess 22 of the former, until the set number is reached and the installation is completed, such design can adapt to different widths of the guide ring groove, and has high adaptive flexibility.

[0018] It should be noted that the elastic ring 1 can be made of polyurethane material, has certain wear resistance and resilience characteristics;The resilience of the elastic ring 1 can press the splicing rings 2 tightly, so that the splicing rings 2 are not loose as a whole and affect the use.

[0019] Referring to FIG. 2 , the cross-section of the docking groove 11 is trumpet-shaped, and the bottom of the docking groove 11 is an arc transition. In a specific embodiment, such a design can leave a depth margin for insertion at the front end of the lip 21 and facilitate demoulding of the injection mold or sealing turning processing.

[0020] Referring to 4 , the working surface of the splicing ring 2 is provided with oil grooves 23 , which are inclined at a certain angle and arranged in multiple equal intervals. In a specific embodiment, the oil grooves 23 can guide oil and lubricate, and can prevent the splicing ring 2 from being locally heated and damaged prematurely.

[0021] Referring to Figure 5 , a certain number of oil holes 24 are distributed on the oil groove 23 . The cross section of the oil hole 24 is hemispherical. In a specific embodiment, the oil hole 24 can retain hydraulic oil, thereby further improving the lubrication effect of the guide ring. The hemispherical cross section design facilitates pecking drilling.

[0022] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A spliced ​​hydraulic cylinder guide ring, characterized by: The invention comprises an elastic ring (1) and a splicing ring (2); a side wall of the elastic ring (1) is provided with a docking groove (11); the splicing ring (2) is provided with an inclined opening; one side of the splicing ring (2) is provided with a convex lip (21) of a trapezoidal structure, and the other side is provided with a groove (22) of a trapezoidal structure; a certain number of the splicing rings (2) are plugged into each other through the cooperation of the convex lip (21) and the groove (22); the outermost convex lip (21) is plugged into the docking groove (11).

2. The spliced ​​hydraulic cylinder guide ring according to claim 1, characterized in that: The cross section of the docking groove (11) is trumpet-shaped, and the bottom of the docking groove (11) is an arc transition.

3. The spliced ​​hydraulic cylinder guide ring according to claim 1, characterized in that: An oil groove (23) is provided on the working surface of the splicing ring (2), and a plurality of the oil grooves (23) are inclined at a certain angle and arranged at equal intervals.

4. The spliced ​​hydraulic cylinder guide ring according to claim 3 is characterized by: A certain number of oil holes (24) are distributed on the oil groove (23), and the cross section of the oil hole (24) is hemispherical.

Images