CN218971818U

CN218971818U - Oil seal for mixer

Info

Publication number: CN218971818U
Application number: CN202223435677.7U
Authority: CN
Inventors: 韩一鸣; 韩长永
Original assignee: Ningbo Quantum Sealing Co ltd
Current assignee: Ningbo Quantum Sealing Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-05-05
Anticipated expiration: 2032-12-20

Abstract

The application relates to an oil blanket for mixer belongs to sealing member technical field. The oil storage device comprises a main body, wherein the main body is provided with a rotating hole through which a rotating shaft passes, the side wall of the main body is provided with an oil filling hole communicated with the rotating hole, the two sides of the rotating hole of the main body are provided with sealing flanges, and the sealing flanges on the two sides are provided with oil storage tanks for lubricating oil storage in the rotating hole. The lubricating oil seal can reduce the probability of lubricating oil separating from the rotating hole and improve the lubricating effect of the oil seal on the rotating shaft.

Description

Oil seal for mixer

Technical Field

The present application relates to seals, and more particularly to an oil seal for a mixer.

Background

Oil seals are a common convention designation for seals, simply referred to as lubrication seals. The oil seal is a mechanical element for reducing leakage of media such as lubricating oil, water, liquid medicine and gas from a gap.

The mixer generally has a rotating shaft for stirring the materials, and a housing of the mixer has a mounting hole through which the rotating shaft protrudes. The oil seal is usually arranged in the mounting hole to be matched with the rotating shaft, so that the sealing effect of the shell is realized. When the oil seal is used, oil injection operation is needed to be carried out on the oil seal so as to reduce friction between the rotating shaft and the oil seal. Therefore, the oil seal is usually provided with an oil filling hole, but the inner side of the oil seal is generally a flat wall surface, when lubricating oil is filled from the oil filling hole, the lubricating oil is easy to drop from the inner side of the oil seal to the outside, and the mixing of materials is polluted.

With respect to the related art described above, the inventors have recognized a need to provide an oil seal capable of reducing the probability of leakage of lubricating oil from the inner wall of the oil seal.

Disclosure of Invention

In order to reduce the probability of leakage of lubricating oil from the inner wall of an oil seal, the application provides an oil seal for a mixer.

The application provides an oil blanket for mixing machine adopts following technical scheme:

the utility model provides an oil blanket for mixer, includes the main part, the main part has the rotatory hole that supplies the axis of rotation to pass, the oil filler point with rotatory hole intercommunication has been seted up to the lateral wall of main part, the main part is provided with sealed turn-ups in rotatory hole both sides, both sides sealed turn-ups are in be formed with the oil storage tank that supplies lubricating oil to store in the rotatory hole.

Through adopting above-mentioned technical scheme, when adopting above-mentioned oil blanket, pass the tip of axis of rotation from the rotatory hole of main part, rotation axis and the oil blanket main part that will accomplish the equipment are installed on the casing, when operating personnel pours into lubricating oil from the oil filler point of main part into, lubricating oil enters into the rotatory downthehole wall of main part along the oil filler point, through the setting of main part internal seal turn-ups for lubricating oil can temporarily store in the oil storage tank that is formed at rotatory hole by the sealed turn-ups in both sides, thereby can reduce the probability that lubricating oil revealed from rotatory hole lateral wall, the life of extension axis of rotation.

Optionally, the sealing flange comprises a first flange and a second flange, the first flange is provided with a first annular groove on one side facing the second flange, and a first sealing ring is arranged in the first annular groove.

Through adopting above-mentioned technical scheme, disclose sealed turn-ups's constitution, first turn-ups and second turn-ups are located the both ends opening part of swivel vent respectively, the cooperation of first annular and first sealing washer on first turn-ups for after axis of rotation and oil blanket installation, help improving the leakproofness of oil blanket, reduce the probability that lubricating oil revealed from the oil storage tank.

Optionally, the first flange is provided with a first limit flange at one side of the first annular groove, which is close to the second flange.

Through adopting above-mentioned technical scheme, the setting of first spacing turn-ups for can play spacing effect to the inboard of first sealing washer, reduce the probability that first sealing washer breaks away from first annular.

Optionally, the main body is provided with a guiding surface in the rotation hole, and the guiding surface is located near the opening end of the first flanging in the rotation hole.

Through adopting above-mentioned technical scheme, the setting of guide surface for the axis of rotation can be followed the guide surface and inserted to the rotatory downthehole from the outside of first turn-ups, helps making the insertion of axis of rotation more smooth and easy.

Optionally, the second flange is flush with the end face of the main body, a second ring groove is arranged on one side of the second flange away from the first flange, and a second sealing ring is arranged in the second ring groove.

Through adopting above-mentioned technical scheme, after the installation is accomplished to oil blanket and axis of rotation, through the cooperation of second annular and second sealing washer, help reducing the probability that external dust enters into the oil storage tank, improve the leakproofness of oil blanket.

Optionally, the second flange is provided with a second limit flange at one side of the second ring groove opposite to the first flange.

Through adopting above-mentioned technical scheme, the setting of the spacing turn-ups of second for can play spacing effect to the inboard of second sealing washer, reduce the probability that the second sealing washer breaks away from the second annular.

Optionally, an installation ring groove is formed in the outer side of the main body, and the oil filling hole is located in the installation ring groove.

Through adopting above-mentioned technical scheme, the setting of installation annular for help making things convenient for main part and the casing of mixer to seal the installation, improve the stability of oil blanket at the casing, reduced the probability that the oil blanket breaks away from on the casing.

Optionally, the main body is provided with a third annular groove at two sides of the installation annular groove, and a third sealing ring is arranged in the third annular groove.

Through adopting above-mentioned technical scheme, the cooperation of the third annular in main part outside and third sealing washer helps improving the leakproofness after oil blanket and the casing installation, reduces the probability that external dust enters into the casing and influences the mixer performance.

Optionally, the main body is provided with at least two rotation holes, at least two rotation holes are arranged at intervals along the length direction of the main body, and the oil filling holes are arranged in one-to-one correspondence with the rotation holes.

Through adopting above-mentioned technical scheme, set up rotatory hole into two at least for the oil blanket can adapt to the biax and above mixes the machine, improves the suitability of oil blanket.

Optionally, the main body is provided with at least three rotation holes, at least three rotation holes are circumferentially arranged at intervals along the central axis of the main body, and the oil filling holes are arranged in one-to-one correspondence with the rotation holes.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the oil seal for the mixer comprises a main body, wherein sealing flanges are arranged on two sides of a rotating hole of the main body, so that lubricating oil flowing into the rotating hole from an oil injection hole can be temporarily stored in an oil storage tank formed by the sealing flanges on two sides, and the leakage probability of the lubricating oil from the rotating hole is reduced;

2. the probability of leakage of lubricating oil in the oil storage tank is reduced through the cooperation of the first annular groove and the first sealing ring; the second ring groove is matched with the second sealing ring, so that the tightness of the oil seal is improved, and impurities such as external dust are reduced to enter the oil storage groove;

3. through the setting of the first spacing turn-ups, the spacing turn-ups of second, reduced the probability that first sealing washer breaks away from the spacing turn-ups of first, the probability that second sealing washer breaks away from the spacing turn-ups of second.

Drawings

Fig. 1 is an exploded view of the mixer and oil seal in example 1.

Fig. 2 is a schematic diagram of the overall structure of the oil seal in embodiment 1.

Fig. 3 is a schematic cross-sectional view of the oil seal in example 1.

Fig. 4 is a schematic view of the structure of an oil seal in embodiment 2.

Reference numerals illustrate: 1. a main body; 11. a rotation hole; 12. an oil filling hole; 13. sealing and flanging; 131. a first flanging; 1311. a first ring groove; 1312. a first seal ring; 1313. the first limit flanging; 132. a second flanging; 1321. a second ring groove; 1322. a second seal ring; 1323. the second limit flanging; 14. an oil storage tank; 15. a guide surface; 16. installing a ring groove; 17. a third ring groove; 18. a third seal ring; 2. a mixer; 21. a housing; 22. and (3) rotating the shaft.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

The embodiment of the application discloses an oil seal for a mixer.

Example 1:

referring to fig. 1, the oil seal of the present application is for cooperation with a rotating shaft 22 of a mixer 2 so that the rotating shaft 22 can be sealingly mounted on a housing 21 of the mixer 2.

Referring to fig. 1 and 2, an oil seal for a mixer 2 includes a main body 1 for rotating engagement with a rotating shaft 22. The whole body 1 is in a three-dimensional round rectangle. The main body 1 has a rotation hole 11 penetrating both side end surfaces and through which an end of the rotation shaft 22 passes. In the present embodiment, the main body 1 has two rotation holes 11, and the two rotation holes 11 are arranged at intervals along the length direction of the main body 1. The outer side wall of the main body 1 has oil injection holes 12 which are in one-to-one correspondence with the rotation holes 11 and communicate with the rotation holes 11. In other embodiments, when the main body 1 has more than two rotation holes 11, all the rotation holes 11 are uniformly spaced apart along the length direction of the main body 1.

Referring to fig. 1 and 2, the main body 1 is provided with sealing beads 13 at both side openings of the rotation hole 11. The sealing flanges 13 extend towards the axis near the rotation hole 11, so that an oil storage tank 14 for storing lubricating oil is formed under the cooperation of the side walls of the rotation hole 11 and the sealing flanges 13 on the two sides. The sealing flange 13 is injection molded integrally with the body 1. When the lubricating oil is injected into the rotary hole 11 from the oil injection hole 12, the oil storage tank 14 is provided to temporarily store the lubricating oil, so that the lubricating effect between the rotating shaft 22 and the side wall of the rotary hole 11 is more satisfactory.

Referring to fig. 3, the sealing flange 13 includes a first flange 131 and a second flange 132 corresponding to the first flange 131. The first flange 131 has a first annular groove 1311 on a side facing the second flange 132, and a first seal ring 1312 is sealed and clamped at the first annular groove 1311. The outer diameter of the first seal ring 1312 is adapted to the inner diameter of the rotary hole 11. The first flange 131 is integrally provided with a first limit flange 1313 at a side close to the axis of the rotation hole 11, so as to reduce the probability of the first seal ring 1312 being separated from the first ring groove 1311. The body 1 also has a guide surface 15 on the side facing away from the second flange 132 for guiding the insertion of the end of the rotary shaft 22 into the rotary hole 11. The guide surface 15 is inclined inwardly toward the vicinity of the second flange 132 and extends inwardly to the first flange 131. While the guide surface 15 is an arc-shaped curved surface recessed inward in a direction away from the axis of the rotation hole 11.

Referring to fig. 3, the second flange 132 has a second annular groove 1321 on a side facing away from the first flange 131, that is, on an end surface of the main body 1, and a second seal ring 1322 is sealingly engaged with the second annular groove 1321. The outer diameter of the second seal 1322 is the same as the outer diameter of the first seal 1312. The second flange 132 is integrally provided with a second limit flange 1323 at a side near to the axis of the rotation hole 11, so as to reduce the probability of the second seal ring 1322 separating from the second ring groove 1321. By the cooperation of the first seal ring 1312 and the first ring groove 1311 and the cooperation of the second seal ring 1322 and the second ring groove 1321, the sealing performance of the oil seal can be improved, and the probability of external impurities entering the mixer 2 can be reduced.

Referring to fig. 3, the body 1 is provided with a mounting groove 16 along the outer sidewall circumference. The mounting ring groove 16 is located in the middle of the outer sidewall of the main body 1. The main body 1 has third annular grooves 17 on both sides of the mounting annular groove 16, and a third seal ring 18 is sealed and clamped in the third annular grooves 17. The oil filling hole 12 is located at the bottom wall of the mounting ring groove 16 and is communicated with the oil storage groove 14.

The implementation principle of the oil seal for the mixer 2 in the embodiment of the application is as follows: when the lubricating oil is injected into the rotary hole 11 from the oil injection hole 12, the lubricating oil enters the rotary hole 11 along the oil injection hole 12 and is temporarily stored in the oil storage tank 14, so that the lubricating oil has a better lubricating effect after the oil seal is mounted with the rotating shaft 22; in addition, the first seal ring 1312 and the first ring groove 1311, the second seal ring 1322 and the second ring groove 1321, and the third seal ring 18 and the third ring groove 17 can be combined to improve the sealing performance of the entire oil seal, and reduce the probability of leakage of lubricating oil from the oil reservoir 14 and the probability of entry of external dust into the mixer 2.

Example 2:

the oil seal of this embodiment and embodiment 1 is identical to that of embodiment 1 except for the shape of the main body 1 and the number of rotation holes 11 in the main body 1.

Referring to fig. 4, the main body 1 has a disk shape as a whole. The main body 1 has a rotation hole 11 penetrating both side end surfaces and through which an end of the rotation shaft 22 passes. In the present embodiment, the main body 1 has three rotation holes 11, and the three rotation holes 11 are circumferentially spaced along the central axis of the main body 1. The outer side wall of the main body 1 has oil injection holes 12 which are in one-to-one correspondence with the rotation holes 11 and communicate with the rotation holes 11. In other embodiments, when the main body 1 has three or more rotation holes 11, all the rotation holes 11 are circumferentially spaced along the central axis of the main body 1.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides an oil blanket for mixer, includes main part (1), main part (1) have and supply rotation axis (22) rotatory hole (11) that pass, oil filler point (12) with rotatory hole (11) intercommunication have been seted up to the lateral wall of main part (1), a serial communication port, main part (1) are provided with sealed turn-ups (13) in rotatory hole (11) both sides, both sides sealed turn-ups (13) are in be formed with in rotatory hole (11) oil storage tank (14) that supply lubricating oil to store.

2. An oil seal for a mixer according to claim 1, wherein: the sealing flange (13) comprises a first flange (131) and a second flange (132), wherein a first annular groove (1311) is formed in one side of the first flange (131) facing the second flange (132), and a first sealing ring (1312) is arranged in the first annular groove (1311).

3. An oil seal for a mixer according to claim 2, wherein: the first flanging (131) is provided with a first limit flanging (1313) at one side of the first annular groove (1311) close to the second flanging (132).

4. An oil seal for a mixer according to claim 2, wherein: the main body (1) is provided with a guide surface (15) in the rotary hole (11), and the guide surface (15) is positioned in the rotary hole (11) close to the opening end of the first flanging (131).

5. An oil seal for a mixer according to claim 2, wherein: the second flanging (132) is flush with the end face of the main body (1), a second annular groove (1321) is formed in one side, away from the first flanging (131), of the second flanging (132), and a second sealing ring (1322) is arranged in the second annular groove (1321).

6. An oil seal for a mixer according to claim 5, characterized in that the second flange (132) is provided with a second limit flange (1323) at the side of the second ring groove (1321) facing away from the first flange (131).

7. An oil seal for a mixer according to claim 1, wherein: the outer side of the main body (1) is provided with an installation ring groove (16), and the oil filling hole (12) is positioned in the installation ring groove (16).

8. An oil seal for a mixer according to claim 7, wherein: the main body (1) is provided with a third annular groove (17) at two sides of the installation annular groove (16), and a third sealing ring (18) is arranged in the third annular groove (17).

9. An oil seal for a mixer according to claim 6, wherein: the main body (1) is provided with at least two rotating holes (11), the at least two rotating holes (11) are arranged at intervals along the length direction of the main body (1), and the oil filling holes (12) are arranged in one-to-one correspondence with the rotating holes (11).

10. An oil seal for a mixer according to claim 6, wherein: the main body (1) is provided with at least three rotary holes (11), at least three rotary holes (11) are circumferentially arranged at intervals along the central axis of the main body (1), and oil injection holes (12) are arranged in one-to-one correspondence with the rotary holes (11).