Efficient mechanical sealing element

Abstract

The utility model belongs to the technical field of mechanical sealing elements, and particularly relates to an efficient mechanical sealing element which comprises a shaft sleeve, a rotating shaft rotationally connected to the inner side of the shaft sleeve, an installation block assembled on the inner side of the shaft sleeve, an installation groove formed in the inner side of the installation block, an oil inlet formed in the top of the installation groove, and a plurality of sealing rotating balls installed on the side, close to the rotating shaft, of the installation block. A sealing assembly is further mounted on the inner side of the shaft sleeve, an oiling structure is assembled on the side, away from the rotating shaft, of the inner side of the mounting groove, the sealing assembly comprises a guide strip, one end of the guide strip is in lap joint with the mounting block and penetrates through the mounting block to extend to the lower position of the middle of the mounting groove, and the other end of the guide strip is arranged on the outer side of the mounting block. A sealing gasket is fixed to the other end of the guide strip, attached to the rotating shaft and fixedly connected with the shaft sleeve. The shaft sleeve and the rotating shaft can be effectively sealed, and meanwhile the friction force between the shaft sleeve and the rotating shaft is obviously reduced through lubricating oil.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical seals, and in particular relates to a high-efficiency mechanical seal. Background Art

[0002] In modern industrial equipment, mechanical seals are one of the key components to ensure the normal operation of the equipment. Traditional mechanical seals usually face the contradiction between sealing performance and friction. Especially in the sealing process of the sleeve and the shaft, excessive friction will lead to reduced equipment efficiency, increased energy consumption, and may even cause premature damage to the seal.

[0003] In recent years, although a number of patents have been proposed to improve this problem, such as a mechanical seal with good connection stability proposed in the publication number CN216768344U, which has the advantages of self-lubrication and good high temperature resistance, this design still has the problem of large friction in practical applications;

[0004] In view of the shortcomings of the existing technology, it is necessary to propose a new type of high-efficiency mechanical seal. Utility Model Content

[0005] The utility model aims to provide a high-efficiency mechanical seal which can effectively seal a shaft sleeve and a rotating shaft and significantly reduce the friction between the two by using lubricating oil.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A high-efficiency mechanical seal comprises a shaft sleeve, the inner side of the shaft sleeve is rotatably connected with a rotating shaft, the inner side of the shaft sleeve is equipped with a mounting block, the inner side of the mounting block is provided with a mounting groove, the top of the mounting groove is provided with an oil inlet, and a plurality of sealing rotating balls are installed on a side of the mounting block close to the rotating shaft;

[0008] A sealing assembly is also installed on the inner side of the shaft sleeve, and an oiling structure is installed on the inner side of the mounting groove and on the side away from the rotating shaft.

[0009] The sealing assembly includes an oil guide strip, one end of which is overlapped on the mounting block and extends through the mounting block to the lower middle position of the mounting groove, the other end of the oil guide strip is arranged on the outer side of the mounting block, and a sealing gasket is fixed to the other end of the oil guide strip, the sealing gasket is in contact with the rotating shaft, and the sealing gasket is fixedly connected to the shaft sleeve.

[0010] The refueling assembly includes a mounting frame fixed to the outside of the mounting groove near the top, and a spring is fixed at the center position of the top of the mounting frame. A sealing block is fixed on the top of the spring, and the sealing block is used to seal the oil inlet.

[0011] The inner side of the oil inlet is also threadedly connected with a sealing cap.

[0012] The material of the oil guide strip is cotton.

[0013] A guide bar is fixed at the bottom of the sealing block and located inside the spring, and the guide bar is slidably connected with the mounting frame.

[0014] The technical effects achieved by the utility model are:

[0015] The utility model can effectively seal the shaft sleeve and the rotating shaft and significantly reduce the friction between the two by using lubricating oil, which not only improves the operating efficiency of the equipment, reduces energy consumption, but also prolongs the service life of the sealing component. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure between the shaft sleeve, the rotating shaft and the mounting block in the utility model;

[0018] Figure 3 It is a schematic diagram of the structure among the installation groove, the sealing gasket and the spring in the utility model.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Bushing; 2. Rotating shaft; 3. Mounting block; 4. Sealing gasket; 5. Mounting groove; 6. Sealing rotating ball; 7. Oil guide strip; 8. Mounting frame; 9. Sealing block; 10. Spring; 11. Guide strip; 12. Oil inlet. DETAILED DESCRIPTION

[0021] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0022] like Figure 1-3 As shown, a high-efficiency mechanical seal comprises a shaft sleeve 1, the inner side of the shaft sleeve 1 is rotatably connected with a rotating shaft 2, the inner side of the shaft sleeve 1 is equipped with a mounting block 3, the mounting block 3 and the shaft sleeve 1 are tightly connected and can be mounted and fixed on the shaft sleeve 1, the inner side of the mounting block 3 is provided with a mounting groove 5, the top of the mounting groove 5 is provided with an oil inlet 12, the interior of the oil inlet 12 is equipped with lubricating oil, and a plurality of sealing rotating balls 6 are installed on the side of the mounting block 3 close to the rotating shaft 2;

[0023] When the rotating shaft 2 rotates, the sealing rotating ball 6 can enhance the rotation effect between the shaft sleeve 1 and the rotating shaft 2, reduce the friction, and effectively increase the sealing performance of the shaft sleeve 1 and the rotating shaft 2 by setting the sealing rotating ball 6;

[0024] A sealing assembly is also installed on the inner side of the sleeve 1 , and an oil filling structure is installed on the inner side of the mounting groove 5 and on the side away from the rotating shaft 2 .

[0025] See attached Figure 3 The sealing assembly includes an oil guide strip 7, which is made of cotton. The material of the oil guide strip 7 can be the same as that of a wick to absorb oil. One end of the oil guide strip 7 is overlapped on the mounting block 3 and extends through the mounting block 3 to the lower middle position of the mounting groove 5. The other end of the oil guide strip 7 is arranged on the outside of the mounting block 3, and a sealing gasket 4 is fixed to the other end of the oil guide strip 7. The sealing gasket 4 fits the rotating shaft 2, and the sealing gasket 4 is fixedly connected to the shaft sleeve 1.

[0026] By setting the oil guide strip 7, the oil guide strip 7 can absorb the oil inside the mounting groove 5 and transfer it to the sealing gasket 4. Through the contact between the sealing gasket 4 and the rotating shaft 2, the sealing gasket 4 can reduce the friction through the conduction of oil while ensuring the sealing of the sleeve 1 and the rotating shaft 2.

[0027] See attached Figure 3 The refueling assembly includes a mounting frame 8 fixed to the outside of the mounting groove 5 near the top, and a spring 10 is fixed at the center of the top of the mounting frame 8, a sealing block 9 is fixed to the top of the spring 10, and a guide bar 11 is fixed to the bottom of the sealing block 9 and located inside the spring 10, and the guide bar 11 is slidably connected to the mounting frame 8. Through this arrangement, the skewness of the spring 10 is reduced when the spring 10 is compressed. The top of the sealing block 9 is a cylinder adapted to the oil inlet 12, and the bottom of the sealing block 9 is a slightly larger disc, which will not cause the sealing block 9 to move out of the shaft sleeve 1 through the oil inlet 12, and the sealing block 9 is used to block the oil inlet 12;

[0028] When injecting new lubricating oil into the installation groove 5, the sealing block 9 can be pressed through the external oil nozzle, and the sealing block 9 can cancel the blockage of the oil inlet 12. At this time, the oil nozzle can be tilted a little, or an oil nozzle with an inclined oil outlet can be used to press the external oil bottle to add lubricating oil to the installation groove 5. After the addition is completed, the oil nozzle is removed. At this time, the sealing block 9 is reset by the setting of the spring 10, and the oil inlet 12 is re-sealed to prevent the oil from volatilizing. The inner side of the oil inlet 12 is also threadedly connected to a sealing cap. Through this setting, the sealing cap further seals the oil inlet 12. When oil filling is needed, the sealing cap is screwed and removed to fill the installation groove 5 with oil.

[0029] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A high-efficiency mechanical seal, comprising a sleeve (1), characterized in that: The inner side of the shaft sleeve (1) is rotatably connected to a rotating shaft (2), the inner side of the shaft sleeve (1) is equipped with a mounting block (3), the inner side of the mounting block (3) is provided with a mounting groove (5), the top of the mounting groove (5) is provided with an oil inlet (12), and a plurality of sealing rotating balls (6) are installed on a side of the mounting block (3) close to the rotating shaft (2); A sealing assembly is also installed on the inner side of the shaft sleeve (1), and an oiling assembly is installed on the inner side of the installation groove (5) and on the side away from the rotating shaft (2).

2. A high-efficiency mechanical seal according to claim 1, characterized in that: The sealing assembly comprises an oil guide strip (7), one end of which is overlapped on the mounting block (3) and extends through the mounting block (3) to the middle and lower position of the mounting groove (5), the other end of which is arranged on the outside of the mounting block (3), and a sealing gasket (4) is fixed to the other end of the oil guide strip (7), the sealing gasket (4) is in contact with the rotating shaft (2), and the sealing gasket (4) is fixedly connected to the shaft sleeve (1).

3. A high-efficiency mechanical seal according to claim 1, characterized in that: The refueling assembly comprises a mounting frame (8) fixed to the outside of the mounting groove (5) near the top, a spring (10) is fixed at the center position of the top of the mounting frame (8), a sealing block (9) is fixed to the top of the spring (10), and the sealing block (9) is used to seal the oil inlet (12).

4. A high-efficiency mechanical seal according to claim 1, characterized in that: The inner side of the oil inlet (12) is also threadedly connected with a sealing cap.

5. A high-efficiency mechanical seal according to claim 2, characterized in that: The material of the oil guide strip (7) is cotton.

6. A high-efficiency mechanical seal according to claim 3, characterized in that: A guide bar (11) is fixed at the bottom of the sealing block (9) and located on the inner side of the spring (10), and the guide bar (11) is slidably connected to the mounting frame (8).

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