High-stability floating oil seal ring

Abstract

The utility model relates to the technical field of mechanical parts, in particular to a high-stability floating oil seal ring which comprises two mounting rings, the surfaces of the mounting rings are sleeved with sealing rings, connecting rings are detachably mounted on the opposite faces of the two mounting rings, and the faces, facing the mounting rings, of the connecting rings are fixedly connected with fixing rings. A T-shaped groove is formed in the inner ring face of the mounting ring, a T-shaped positioning rod is slidably connected to the inner wall of the T-shaped groove, the end face of the T-shaped positioning rod is hemispherical, and a positioning groove is formed in the outer ring face of the fixing ring. According to the floating oil seal ring, the mounting ring, the connecting ring and the fixing ring are arranged, the floating oil seal ring is divided into the upper part and the lower part, the friction part is mounted above the connecting ring, the sealing ring is mounted on the surface of the mounting ring, the mounting ring and the connecting ring can be disassembled and assembled, and the floating oil seal ring can be replaced according to the damaged part when being damaged, so that the investment is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical components technical field especially relates to a high stability floating oil seal ring. BACKGROUND

[0002] Floating oil seal is a common name of floating seal, belongs to one kind of mechanical seal in dynamic seal, has super sealing performance under the bad working environment of much coal dust, silt, water gas etc., is a compact mechanical seal, is mainly used in low speed heavy load occasion, it has wear resistance, can automatically compensate after end face wear, work is reliable, simple structure and the like advantage, is widely applied in coal mine machinery.

[0003] Floating oil seal ring is composed of two mounting rings, the surface of two mounting rings is sleeved with a sealing ring, and the opposite surface of two mounting rings is provided with a lap joint ring, the opposite surface of two lap joint rings is polished, in use, two lap joint rings are extruded, the plane polishing of two lap joint rings can ensure the relative rotation of two mounting rings, and the sealing ring is deformed in the extrusion process, at this time, the sealing ring can fill the gap of the mounting part to ensure sealing.

[0004] After long time use, the oil seal ring will be damaged, the existing damage is mainly that the mounting ring is seriously worn and damaged, or the sealing ring is aged, the mounting ring and the lap joint ring are fixedly connected, and the whole metal floating ring needs to be replaced when being replaced, but in fact, only the friction part is worn, the rubber ring support part can be normally used, and the overall replacement will increase the production and manufacturing cost. UTILITY MODEL CONTENTS

[0005] To achieve the above object, the utility model provides a high stability floating oil seal ring, which comprises two mounting rings, the surface of the mounting ring is sleeved with a sealing ring, the opposite surface of the two mounting rings is detachably provided with a connecting ring, one side of the connecting ring towards the mounting ring is fixedly connected with a fixed ring, the inner ring surface of the mounting ring is provided with a T-shaped groove, the inner wall of the T-shaped groove is slidably connected with a T-shaped positioning rod, the end surface of the T-shaped positioning rod is semispherical, the outer ring surface of the fixed ring is provided with a positioning groove, the T-shaped positioning rod is clamped in the inner part of the positioning groove, the surface of the mounting ring is provided with an inner hexagonal bolt, and the inner hexagonal bolt is screwed into a threaded groove provided on the surface of the fixed ring.

[0006] In one example, the opposite surface of the T-shaped positioning rod and the T-shaped groove is fixedly connected with a spring.

[0007] In one example, the surface of the mounting ring is provided with a through hole, and the inner hexagonal bolt is located in the inner part of the through hole.

[0008] In one example, the surface of the mounting ring is provided with an annular groove, and the sealing ring is clamped in the inner part of the annular groove.

[0009] In one example, the upper surface of the lower connecting ring is fixedly connected with a trapezoidal ring, and the upper surface of the trapezoidal ring is planar and smooth.

[0010] In one example, the lower surface of the upper connecting ring is fixedly connected with a lap joint ring, and the inner ring surface of the lap joint ring is provided with a trapezoidal ring groove matched with the trapezoidal ring.

[0011] In one example, the inner top wall of the trapezoidal ring groove is planar and smooth, and the upper surface of the trapezoidal ring is lapped with the inner top wall of the trapezoidal ring groove.

[0012] In one example, the lower surface of the upper connecting ring is fixedly connected with a sleeve ring, and the inner ring surface of the sleeve ring is lapped with the surface of the lower connecting ring.

[0013] The high-stability floating oil seal ring can bring the following beneficial effects:

[0014] 1. The mounting ring, the connecting ring and the fixed ring are arranged, the floating oil seal ring is divided into two parts, the friction part is arranged above the connecting ring, the sealing ring is arranged on the surface of the mounting ring, the mounting ring and the connecting ring can be disassembled, and the damaged part can be replaced when damage occurs, so that the investment is reduced.

[0015] 2. The inner hexagonal bolt and the fixed ring are arranged, the mounting ring and the connecting ring can be fixed, the T-shaped positioning rod, the spring and the positioning groove are arranged to realize the positioning between the fixed ring and the mounting ring, and the inner hexagonal bolt is aligned with the threaded groove.

[0016] 3. The trapezoidal ring, the trapezoidal ring groove and the sleeve ring are arranged, the mounting ring below is wrapped by the sleeve ring, compared with the traditional lap joint between the friction surfaces, the direction of the gap is changed, the gap is in a horizontal direction, impurities can be prevented from entering the friction surface through the vertical gap under the action of gravity, the impurities are prevented from affecting the friction surface, and the service life of the floating oil seal ring is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings described herein are used to provide further understanding of the utility model and constitute a part of the utility model. The illustrative embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute improper limitation on the utility model. In the drawings:

[0018] Figure 1 The utility model discloses a three-dimensional structure schematic diagram;

[0019] Figure 2 It is the internal structure schematic diagram of the utility model;

[0020] Figure 3The fixed ring internal structure schematic view of the utility model is shown in the figure;

[0021] Figure 4 The utility model discloses Figure 3 The enlarged structure schematic view of A place in the middle;

[0022] The reference signs are as follows:

[0023] 1 mounting ring, 2 sealing ring, 3 connecting ring, 4 fixed ring, 5 T-shaped positioning rod, 6 spring, 7 positioning groove, 8 inner hexagonal bolt, 9 trapezoidal ring, 10 lap joint ring, 11 trapezoidal ring groove, 12 sleeve ring. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the overall concept of the utility model, the following detailed description is made in an exemplary manner in combination with the drawings of the specification.

[0025] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0026] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0027] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. In the description of the present application, the description of the terms "one scheme", "several schemes", "example", "specific example" or "several examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more schemes or examples in a suitable manner.

[0029] As shown in Figures 1-4 The utility model provides a kind of high-stability floating oil seal ring, including two installation rings 1, the surface of two installation rings 1 is all equipped with sealing ring 2, the surface of installation ring 1 is equipped with annular groove, sealing ring 2 is connected in annular groove, the setting of annular groove can guarantee the fixation of sealing ring 2 on installation ring 1, the opposite surface of two installation rings 1 is detachably equipped with connecting ring 3.

[0030] In order to facilitate the connection between connecting ring 3 and installation ring 1, the side of connecting ring 3 towards installation ring 1 is fixedly connected with fixed ring 4, the outer ring surface of fixed ring 4 is overlapped with the inner ring surface of installation ring 1, the inner wall of T-shaped slot is slidably connected with T-shaped positioning rod 5, the opposite surface of T-shaped positioning rod 5 and T-shaped slot is fixedly connected with spring 6, under the elastic force of spring 6, the end of T-shaped positioning rod 5 away from T-shaped slot extends to the outside of installation ring 1 at this time, and the part of T-shaped positioning rod 5 extending outside installation ring 1 is hemispherical, the outer ring surface of fixed ring 4 is equipped with positioning groove 7, the surface of the end of T-shaped positioning rod 5 is overlapped with the inner wall of positioning groove 7.

[0031] When fixed ring 4 is inserted into installation ring 1, fixed ring 4 will be overlapped with the hemispherical surface of T-shaped positioning rod 5, at this time, T-shaped positioning rod 5 will be pushed by fixed ring 4, T-shaped positioning rod 5 is accommodated into T-shaped slot, spring 6 is compressed, when fixed ring 4 is completely pushed into installation ring 1, rotate fixed ring 4 to adjust position, when T-shaped positioning rod 5 and positioning groove 7 on fixed ring 4 are aligned, the elastic force of spring 6 will push T-shaped positioning rod 5 to insert into positioning groove 7, the position of fixed ring 4 on installation ring 1 can be positioned, in order to guarantee the stable connection between fixed ring 4 and installation ring 1, through hole is equipped on the surface of installation ring 1, inner hexagonal bolt 8 is installed inside through hole, threaded groove is equipped on the surface of fixed ring 4, the fixed connection between fixed ring 4 and installation ring 1 can be realized by screwing inner hexagonal bolt 8 into threaded groove.

[0032] The upper surface of the lower connecting ring 3 is fixedly connected with a trapezoidal ring 9, the lower surface of the upper connecting ring 3 is fixedly connected with a lap joint ring 10, the inner ring surface of the lap joint ring 10 is provided with a trapezoidal ring groove 11 matched with the trapezoidal ring 9, the volume of the trapezoidal ring groove 11 is greater than that of the trapezoidal ring 9, the upper surface of the trapezoidal ring 9 is lapped with the inner top wall of the trapezoidal ring groove 11, the upper surface of the trapezoidal ring 9 and the inner top wall of the trapezoidal ring groove 11 are both planar and smooth, the smooth lapping treatment ensures the relative rotation between the upper and lower connecting rings 3, reduces the friction, and the trapezoidal ring 9 can move left and right in the trapezoidal ring groove 11, ensuring the left and right deviation between the upper and lower connecting rings 3.

[0033] Meanwhile, the lower surface of the upper connecting ring 3 is fixedly connected with a sleeve ring 12, the inner ring surface of the sleeve ring 12 is lapped with the surface of the lower connecting ring 3, at this time, the gap between the upper and lower connecting rings 3 is horizontally oriented, which can effectively avoid the foreign matter from being clamped in the gap, avoid the foreign matter from being clamped in the gap to affect the rotation, and also avoid the foreign matter from being clamped in the gap to damage the lapped surface, thereby prolonging the service life of the floating oil seal ring.

[0034] Each of the embodiments in the specification is described in a progressive manner, and the same and similar parts between the embodiments can be referred to each other, and each embodiment mainly describes the difference from other embodiments. Especially, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the related parts can be referred to the part of the method embodiment.

[0035] The above only describes the embodiments of the present application and is not used to limit the present application. The present application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A high-stability floating oil seal ring comprising two mounting rings (1), characterized in that: The surface of the mounting ring (1) is sleeved with a sealing ring (2), and the opposite surfaces of the two mounting rings (1) are detachably provided with connecting rings (3); one surface of the connecting ring (3) is fixedly connected with a fixed ring (4) towards the mounting ring (1); the inner ring surface of the mounting ring (1) is provided with a T-shaped groove, and the inner wall of the T-shaped groove is slidably connected with a T-shaped positioning rod (5); the end surface of the T-shaped positioning rod (5) is hemispherical; the outer ring surface of the fixed ring (4) is provided with a positioning groove (7), and the T-shaped positioning rod (5) is clamped in the positioning groove (7); the surface of the mounting ring (1) is provided with an inner hexagonal bolt (8), and the inner hexagonal bolt (8) is screwed into a threaded groove formed on the surface of the fixed ring (4).

2. A high stability floating oil seal ring as claimed in claim 1, wherein: The opposite surfaces of the T-shaped positioning rod (5) and the T-shaped groove are fixedly connected with springs (6).

3. A high stability floating oil seal ring as claimed in claim 1, wherein: The surface of the mounting ring (1) is provided with a through hole, and the inner hexagonal bolt (8) is located in the through hole.

4. The high stability floating oil seal ring of claim 1, wherein: The surface of the mounting ring (1) is provided with an annular groove, and the sealing ring (2) is clamped in the annular groove.

5. The high stability floating oil seal ring of claim 1, wherein: The upper surface of the connecting ring (3) is fixedly connected with a trapezoidal ring (9), and the upper surface of the trapezoidal ring (9) is smoothly polished.

6. A high stability floating oil seal ring as claimed in claim 5, wherein: The lower surface of the connecting ring (3) is fixedly connected with a lap joint ring (10), and the inner ring surface of the lap joint ring (10) is provided with a trapezoidal ring groove (11) matched with the trapezoidal ring (9).

7. A high stability floating oil seal ring as claimed in claim 6, wherein: The inner top wall of the trapezoidal ring groove (11) is smoothly polished, and the upper surface of the trapezoidal ring (9) is lap jointed with the inner top wall of the trapezoidal ring groove (11).

8. The high stability floating oil seal ring of claim 1, wherein: The lower surface of the connecting ring (3) is fixedly connected with a sleeve ring (12), and the inner ring surface of the sleeve ring (12) is lap jointed with the surface of the connecting ring (3).

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