Floating oil seal with compact structure

Abstract

The utility model discloses a floating oil seal with a compact structure, which relates to the technical field of floating oil seals and comprises a first metal sealing ring and a second metal sealing ring, the upper surface of the first metal sealing ring is provided with a first circular groove, and the lower surface of the second metal sealing ring is provided with an annular groove in a surrounding manner. The first metal sealing ring is slidably connected into the annular groove in a sleeved mode through the first circular groove, the outer surface of the second metal sealing ring is slidably connected with a metal floating ring in a sleeved mode, and a floating mechanism is arranged between the metal floating ring and the second metal sealing ring. According to the floating oil seal, one part of the second metal sealing ring is placed in the first metal sealing ring, so that the overall width of the first metal sealing ring and the second metal sealing ring can be reduced, the floating oil seal can be more compact, and the floating oil seal can be conveniently installed in an environment with a limited space.

Description

TECHNICAL FIELD

[0001] The utility model relates to floating oil seal technical field, concretely relates to a compact structure floating oil seal. BACKGROUND

[0002] Floating oil seal is a kind of compact structure mechanical sealing device designed for many coal dust, silt, water gas and other adverse working environment, can prevent lubricating oil leakage at the same time prevent external silt, sand and other pollutants from invading the inside of equipment.It was born in the late 1950s, initially used to replace the rubber oil seal on the chassis of bulldozer.

[0003] Among them, the announcement number for CN220286421U a floating oil seal, including rubber seal ring, the rubber seal ring one side is provided with metal floating ring component, the metal floating ring component includes rubber ring support part, the rubber ring support part one side is slidably connected with positioning column.

[0004] However, the structure of the existing floating oil seal is more complicated, its internal is not enough compact, when the space of floating oil seal use occasion is limited, then unable to meet the requirement of installation, thereby leading to the adaptability of floating oil seal is not strong. UTILITY MODEL CONTENTS

[0005] In view of the above problems existing in the prior art floating oil seal, the utility model is proposed.

[0006] Therefore, the utility model aims at providing a compact structure floating oil seal, solve the structure of the existing floating oil seal is more complicated, its internal is not enough compact, when the space of floating oil seal use occasion is limited, then unable to meet the requirement of installation, thereby leading to the adaptability of floating oil seal is not strong Problem.

[0007] In order to achieve the above object, the utility model provides the following technical scheme:

[0008] A compact structure floating oil seal, including first metal seal ring and second metal seal ring, the upper surface of the first metal seal ring is provided with first circular groove, the lower surface of the second metal seal ring is provided with annular groove, the first metal seal ring is slidably connected in the inside of annular groove through first circular groove, the outer surface of the second metal seal ring is slidably connected with metal floating ring, floating mechanism is arranged between the metal floating ring and the second metal seal ring.

[0009] Preferably, the floating mechanism includes annular sealing pad, the upper surface of the second metal seal ring is provided with first annular sealing groove, and the annular sealing pad is arranged in the inside of the first annular sealing groove.

[0010] Preferably, the lower surface of the metal floating ring is provided with a second circular groove, and the metal floating ring is sleeved on the upper surface of the second metal sealing ring through the second circular groove.

[0011] Preferably, the inside of the second circular groove is symmetrically provided with two limiting grooves, and the two limiting grooves are symmetrically and fixedly connected to the outer surface of the second metal sealing ring.

[0012] Preferably, the outer surface of the first metal sealing ring is surrounded by a second annular sealing groove, and the second annular sealing groove is sleeved with an annular sealing ring.

[0013] Preferably, the inner wall of the first circular groove and the outer surface of the annular groove are smooth planes.

[0014] Preferably, the annular sealing gasket and the annular sealing ring are both made of rubber.

[0015] In the above technical solution, the technical effects and advantages of the utility model are provided:

[0016] 1. The utility model discloses a part of the second metal sealing ring is put into the inside of the first metal sealing ring, so that the width of the first metal sealing ring and the second metal sealing ring can be reduced, and the floating oil seal can be more compact, so that the floating oil seal can be installed in a limited space.

[0017] 2. The utility model discloses an annular sealing ring, which can improve the sealing performance of the floating oil seal, and because the inner wall of the first circular groove and the outer surface of the annular groove are smooth planes, the phenomenon of oil leakage can be prevented. DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art according to these drawings.

[0019] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0020] Figure 2 It is a sectional view of the utility model;

[0021] Figure 3 It is the A part enlarged schematic view of the utility model. Figure 2

[0022] Mark explanation:

[0023] ​1, first metal seal ring; 2, second metal seal ring; 3, metal floating ring; 4, annular sealing pad; 5, limiting block; 6, annular sealing ring. DETAILED DESCRIPTION

[0024] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model will be further described in detail below with reference to the drawings.

[0025] The utility model discloses a compact structure floating oil seal.

[0026] The utility model provides a compact structure floating oil seal as Figures 1-3 The compact structure floating oil seal includes a first metal seal ring 1 and a second metal seal ring 2, a first circular groove is formed in the upper surface of the first metal seal ring 1, an annular groove is formed around the lower surface of the second metal seal ring 2, the first metal seal ring 1 is slidably connected to the inside of the annular groove through the first circular groove, a metal floating ring 3 is slidably connected to the outer surface of the second metal seal ring 2, and a floating mechanism is arranged between the metal floating ring 3 and the second metal seal ring 2.

[0027] Part of the second metal seal ring 2 is placed in the inside of the first metal seal ring 1, so that the width of the first metal seal ring 1 and the second metal seal ring 2 as a whole can be reduced, the floating oil seal can be more compact, and the floating oil seal can be installed in a limited space.

[0028] In order to make the second metal seal ring 2 float, as Figures 1-2 The floating mechanism includes an annular sealing pad 4, a first annular sealing groove is formed in the upper surface of the second metal seal ring 2, the annular sealing pad 4 is arranged in the inside of the first annular sealing groove, and the annular sealing pad 4 and an annular sealing ring 6 are both made of rubber.

[0029] Because the annular sealing pad 4 is made of rubber, it can deform when being extruded, so that the floating oil seal can be normally used.

[0030] In order to prevent the metal floating ring 3 and the second metal seal ring 2 from falling off, as Figures 2-3 A second circular groove is formed in the lower surface of the metal floating ring 3, the metal floating ring 3 is slidably connected to the upper surface of the second metal seal ring 2 through the second circular groove, two limiting grooves are symmetrically formed in the inside of the second circular groove, limiting blocks 5 are slidably arranged in the insides of the two limiting grooves, and the two limiting blocks 5 are symmetrically and fixedly connected to the outer surface of the second metal seal ring 2.

[0031] The two limiting blocks 5 can limit the metal floating ring 3 and the second metal seal ring 2 from falling off.

[0032] In order to improve the sealing of the floating oil seal, as shown in Figures 1-3 The outer surface of the first metal sealing ring 1 is surrounded by a second annular sealing groove, the inside of the second annular sealing groove is sleeved with an annular sealing ring 6, and the inner wall of the first circular groove and the outer surface of the annular groove are both smooth planes.

[0033] The annular sealing ring 6 can improve the sealing of the floating oil seal, and because the inner wall of the first circular groove and the outer surface of the annular groove are both smooth planes, the phenomenon of oil leakage can be prevented.

[0034] The above only describes certain exemplary embodiments of the utility model by way of illustration, without doubt, for ordinary skilled in the art, under the condition that without deviating from the spirit and scope of the utility model, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.

Claims

1. A compact floating oil seal comprising a first metal seal ring (1) and a second metal seal ring (2), characterized in that, The upper surface of the first metal sealing ring (1) is provided with a first circular groove, the lower surface of the second metal sealing ring (2) is provided with an annular groove, the first metal sealing ring (1) is sleeved in the annular groove through the first circular groove, the outer surface of the second metal sealing ring (2) is sleeved with a metal floating ring (3), and a floating mechanism is arranged between the metal floating ring (3) and the second metal sealing ring (2).

2. A compact structure floating oil seal according to claim 1, characterized by The floating mechanism comprises an annular sealing gasket (4), the upper surface of the second metal sealing ring (2) is provided with a first annular sealing groove, and the annular sealing gasket (4) is arranged in the first annular sealing groove.

3. The compact floating oil seal of claim 1, wherein, The lower surface of the metal floating ring (3) is provided with a second circular groove, and the metal floating ring (3) is sleeved on the upper surface of the second metal sealing ring (2) through the second circular groove.

4. A compact floating oil seal according to claim 3, wherein Two limiting grooves are symmetrically arranged in the second circular groove, and limiting blocks (5) are symmetrically arranged in the two limiting grooves.

5. The compact floating oil seal of claim 1, wherein, The outer surface of the first metal sealing ring (1) is provided with a second annular sealing groove, and the second annular sealing groove is sleeved with an annular sealing ring (6).

6. The compact structure floating oil seal according to claim 1, characterized in that, The inner wall of the first circular groove and the outer surface of the annular groove are smooth planes.

7. The compact structure floating oil seal according to claim 1, characterized by, The annular sealing gasket (4) and the annular sealing ring (6) are made of rubber.

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