A new type of mud pump main bearing end cover

Abstract

The utility model discloses a novel slurry pump main bearing end cover, including the cover, the cover top middle part is installed and is closed the head, the cover bottom is installed and is reinforced sealing assembly, reinforced sealing assembly includes seal ring cover, seal ring pad, inner ring, ball, outer ring, rotation groove and revolving stage. Advantageous effect lies in: the utility model discloses the flange plate downside adds the reinforced sealing assembly, makes this vertical slurry pump main bearing end cover when using, can be sealed to the vertical slurry pump main shaft bearing seat place under the joint action of the closed head and reinforced sealing assembly, effectively reduces the closed head place in the risk of the lubricating oil outflow and external slurry into after the friction damage of vertical slurry pump main shaft bearing seat, makes the sealing performance of vertical slurry pump main shaft bearing seat place better, and the long -term stable use of vertical slurry pump is convenient.

Description

Technical Field

[0001] This utility model relates to the field of bearing end cover technology, specifically to a novel mud pump main bearing end cover. Background Technology

[0002] To prevent the outflow of lubricating oil from inside the pump body and to protect the pump body from dust and other debris when the drilling mud pump is in operation, a bearing end cover needs to be installed at the main shaft bearing housing of the mud pump.

[0003] The existing main bearing end cover for vertical drilling mud pumps mainly consists of a flange, a sealing head mounted on the flange, and an oiling nozzle mounted on one side of the flange. Although this type of main bearing end cover can seal the main shaft bearing, in actual use, relying solely on the sealing head at the bearing end cover to seal the main shaft bearing of the vertical mud pump has limited sealing effect. It is prone to damage due to friction between the sealing head and the main shaft of the vertical mud pump, resulting in the leakage of lubricating oil from the vertical mud pump. At the same time, it can also allow external mud and other impurities to enter the body, which is not conducive to the long-term stable use of the vertical mud pump. Utility Model Content

[0004] (a) Technical problems to be solved The technical problem to be solved by this utility model is to provide a new type of mud pump main bearing end cover with a strong sealing structure, based on the current state of the technology.

[0005] (II) Technical Solution This utility model is achieved through the following technical solution: This utility model proposes a novel end cover for the main bearing of a mud pump, including a cover body, a sealing head installed at the middle of the top of the cover body, and a reinforced sealing assembly installed at the bottom of the cover body. The reinforced sealing assembly includes a sealing ring sleeve, a sealing ring gasket, an inner ring, balls, an outer ring, a rotating groove, and a rotating platform.

[0006] Furthermore, the bottom center of the cover has a concave structure, and an oil filler is installed on one side of the top of the cover, which is connected to the concave structure at the bottom of the cover.

[0007] Furthermore, the sealing head is made of plastic, the sealing head is inserted into the cover body, and the middle part of the sealing head has a hollow structure.

[0008] Furthermore, the outer ring is inserted into the middle of the bottom end of the cover, the rotating groove is formed in the middle of the inner wall of the outer ring, the sealing ring gasket is bonded to the upper inner side of the outer ring, and a gap is reserved between the inner ring and the sealing ring gasket.

[0009] Furthermore, the inner ring is installed inside the outer ring, and a turntable is reserved on the outer wall of the inner ring at the part that mates with the rotating groove, and the turntable rotatably engages with the rotating groove.

[0010] Furthermore, a ball bearing is rotatably mounted on the turntable, and the ball bearing contacts the bottom of the rotating groove.

[0011] Furthermore, the sealing ring sleeve is bonded to the inner wall of the inner ring, the sealing ring sleeve is interference-fitted with the main shaft of the vertical mud pump, and the inner wall of the sealing ring sleeve has a labyrinth-type sealing ring groove.

[0012] (III) Beneficial Effects Compared with the prior art, this utility model has the following advantages: This invention, by adding a reinforced sealing component to the lower side of the flange, enables the main bearing end cover of the vertical mud pump to seal the main shaft bearing seat of the vertical mud pump under the combined action of the sealing head and the reinforced sealing component. This effectively reduces the risk of lubricating oil leakage from the main shaft bearing seat of the vertical mud pump and the entry of external mud after friction damage to the sealing head. This results in better sealing performance at the main shaft bearing seat of the vertical mud pump, facilitating the long-term stable use of the vertical mud pump. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a novel mud pump main bearing end cover according to the present invention; Figure 2 This is a front sectional view of a novel mud pump main bearing end cover according to this utility model; Figure 3 This utility model describes a novel mud pump main bearing end cover. Figure 2 Enlarged view of point A in the middle.

[0014] The annotations in the attached figures are explained as follows: 1. Cover body; 2. Sealing head; 3. Oil nozzle; 4. Reinforced sealing assembly; 401. Sealing ring sleeve; 402. Sealing ring gasket; 403. Inner ring; 404. Ball bearing; 405. Outer ring; 406. Rotary groove; 407. Turntable. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] like Figures 1-3As shown, a novel mud pump main bearing end cover in this embodiment includes a cover body 1. A sealing head 2 is installed at the center of the top of the cover body 1. The sealing head 2 can provide initial sealing at the bearing seat of the vertical mud pump main shaft. A reinforcing sealing assembly 4 is installed at the bottom of the cover body 1. The reinforcing sealing assembly 4 includes a sealing ring sleeve 401, a sealing ring gasket 402, an inner ring 403, a ball bearing 404, an outer ring 405, a rotating groove 406, and a rotating platform 407. The sealing ring gasket 402 and the sealing ring sleeve 401 are used to further reinforce the bearing seat of the vertical mud pump main shaft. For sealing, after the vertical mud pump main shaft is inserted and fixed to the sealing ring sleeve 401, as the vertical mud pump main shaft rotates, the turntable 407 on the inner ring 403 will rotate relative to the rotating groove 406 on the outer ring 405. By utilizing the relative rotation between the inner ring 403 and the outer ring 405, the relative rotational wear between the vertical mud pump main shaft and the sealing ring sleeve 401 can be reduced. At the same time, the cooperation between the turntable 407 and the rotating groove 406 also increases the sealing area on the lower side of the sealing ring gasket 402, further reducing the risk of leakage at the bearing seat of the vertical mud pump main shaft.

[0017] like Figures 1-3 As shown in this embodiment, the bottom center of the cover 1 has a concave structure, and a grease nipple 3 is installed on one side of the top of the cover 1. The grease nipple 3 is connected to the concave structure at the bottom of the cover 1. Lubricating oil can be added to the bearing housing of the vertical mud pump main shaft through the grease nipple 3. The sealing head 2 is made of plastic and is inserted into the cover 1. The middle of the sealing head 2 has a hollow structure. The sealing head 2 is mainly used to ensure the sealing performance between the cover 1 and the bearing housing of the vertical mud pump main shaft.

[0018] like Figures 1-3 As shown, in this embodiment, the outer ring 405 is inserted into the middle of the bottom end of the cover 1, the rotating groove 406 is formed in the middle of the inner wall of the outer ring 405, the sealing ring gasket 402 is bonded to the upper inner side of the outer ring 405, and a gap is reserved between the inner ring 403 and the sealing ring gasket 402. The reserved gap can reduce the frictional loss between the inner ring 403 and the sealing ring gasket 402. The inner ring 403 is installed inside the outer ring 405, and a turntable 407 is reserved on the outer wall of the inner ring 403 at the part that mates with the rotating groove 406. The turntable 407 rotatably engages with the rotating groove 406. The turntable 407 and the rotating groove 406 rotatably engage, and the rotation of the turntable 407 and the rotating groove 406 can... To reduce the risk of relative rotation between the sealing ring 401 and the main shaft of the vertical mud pump, a ball bearing 404 is rolled on the turntable 407. The ball bearing 404 contacts the bottom of the rotating groove 406. The ball bearing 404 can reduce the frictional loss between the turntable 407 and the rotating groove 406. The sealing ring 401 is bonded to the inner wall of the inner ring 403. The sealing ring 401 is interference-fitted with the main shaft of the vertical mud pump. The inner wall of the sealing ring 401 has a labyrinth-type sealing ring groove. The labyrinth-type sealing ring groove makes the sealing area between the sealing ring and the main shaft of the vertical mud pump larger and the sealing performance better.

[0019] The specific implementation process of this embodiment is as follows: First, install the capping head 2 on the cap body 1, and install the reinforcing sealing component 4 at the bottom center of the cap body 1. Then, simply install the cap body 1 on the upper side of the vertical mud pump main shaft bearing seat to put the main bearing end cover into use. During use, the sealing ring gasket 402 and the sealing ring sleeve 401 are used to further reinforce the seal of the vertical mud pump main shaft bearing seat. Simultaneously, after the vertical mud pump main shaft and the sealing ring sleeve 401 are inserted and fixed, as the vertical mud pump main shaft rotates, the turntable 407 on the inner ring 403 will rotate relative to the rotating groove 406 on the outer ring 405. The relative rotation between the inner ring 403 and the outer ring 405 reduces the relative rotational wear between the main shaft of the vertical mud pump and the sealing ring sleeve 401. The combination of the turntable 407 and the rotating groove 406 also increases the sealing area on the lower side of the sealing ring gasket 402, further reducing the risk of leakage at the main shaft bearing housing of the vertical mud pump. Due to the action of this type of main bearing end cover, the risk of lubricating oil leakage from the main shaft bearing housing of the vertical mud pump and the entry of external mud is effectively reduced after frictional damage to the sealing head 2. This results in better sealing performance at the main shaft bearing housing of the vertical mud pump, facilitating long-term stable use of the vertical mud pump.

[0020] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A novel end cover for the main bearing of a mud pump, characterized in that: Includes a cover (1), a sealing head (2) is installed at the middle of the top of the cover (1), and a reinforced sealing assembly (4) is installed at the bottom of the cover (1). The reinforced sealing assembly (4) includes a sealing ring sleeve (401), a sealing ring gasket (402), an inner ring (403), a ball (404), an outer ring (405), a rotating groove (406), and a turntable (407). The outer ring (405) is inserted into the middle of the bottom end of the cover (1), the rotating groove (406) is opened in the middle of the inner wall of the outer ring (405), the sealing ring gasket (402) is bonded to the upper inner side of the outer ring (405), and a gap is reserved between the inner ring (403) and the sealing ring gasket (402). The inner ring (403) is installed inside the outer ring (405), and the turntable (407) is reserved on the outer wall of the inner ring (403) at the part that mates with the rotating groove (406). The turntable (407) rotatably engages with the rotating groove (406). A ball bearing (404) is rotatably mounted on the turntable (407), and the ball bearing (404) contacts the bottom of the rotating groove (406); The sealing ring sleeve (401) is bonded to the inner wall of the inner ring (403), the sealing ring sleeve (401) is interference-fitted with the main shaft of the vertical mud pump, and the inner wall of the sealing ring sleeve (401) has a labyrinth-type sealing ring groove.

2. The novel mud pump main bearing end cover according to claim 1, characterized in that: The bottom center of the cover (1) is concave, and a filler nozzle (3) is installed on one side of the top of the cover (1). The filler nozzle (3) is connected to the concave structure at the bottom of the cover (1).

3. The novel mud pump main bearing end cover according to claim 1, characterized in that: The sealing head (2) is made of plastic and is inserted into the cover (1). The middle part of the sealing head (2) is hollow.

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