Bearing gland with sealing structure

Abstract

The utility model relates to the technical field of bearing glands, and discloses a bearing gland with a sealing structure, the bearing gland with the sealing structure comprises a bearing gland body and a bolt, the bearing gland body is provided with a mounting hole, the bolt is in threaded connection with the inner wall of the mounting hole, and the sealing structure is arranged on the bearing gland body. The bearing gland comprises a bearing gland body, a sealing mechanism is arranged on the bearing gland body, a positioning mechanism for preventing a bolt from loosening is arranged on the bearing gland body, the sealing mechanism comprises a guide rod, the guide rod is slidably connected to the inner wall of the bearing gland body, and through the arrangement of the sealing mechanism, the joint of the bolt and a mounting hole can be sealed; the sealing rubber ring can be prevented from being extruded when the bolt is screwed, so that the sealing rubber ring can be prevented from being damaged, the service life of the sealing rubber ring can be prolonged, and the sealing rubber ring can give full play to the sealing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing glands, in particular to a bearing gland with a sealing structure. Background Art

[0002] The bearing gland is generally used for the axial positioning of the bearing and ensures sufficient centering accuracy to ensure the normal working conditions of the bearing.

[0003] According to a publicly disclosed bearing cover with a sealing structure (publication number: CN209164392U), in the above application, a sealing gasket is provided on the left side of the fixing bolt, and the bearing cover plate is fixed to the pump by rotating the fixing bolt, and a sealing effect is achieved through the sealing gasket.

[0004] The above-mentioned bearing cover achieves a sealing effect by adding a sealing gasket on the left side of the bolt. However, during the tightening process of the bolt, the sealing gasket will cause friction between the sealing gasket and the outer wall of the bearing cover plate, and as the bolt is gradually tightened, the sealing gasket will also be subjected to the tightening force of the bolt. Under the action of pressure and friction, it is very easy to cause the sealing gasket to be damaged or even ruptured. Once the sealing gasket is ruptured, it will no longer be able to seal, and there is a risk of oil leakage. Utility Model Content

[0005] The purpose of the present utility model is to provide a bearing gland with a sealing structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a bearing gland with a sealing structure, comprising a bearing gland body and a bolt, wherein the bearing gland body is provided with a mounting hole, the bolt is threadedly connected to the inner wall of the mounting hole, the bearing gland body is provided with a sealing mechanism, the bearing gland body is provided with a positioning mechanism for preventing the bolt from loosening, and the sealing mechanism comprises:

[0007] A guide rod, wherein the guide rod is slidably connected to the inner wall of the bearing gland body, a top plate is fixedly mounted on the outer wall of the guide rod, a guide shaft is fixedly mounted on the side wall of the guide rod, and a sealing rubber ring is fixedly mounted on the outer wall of the top plate. The top plate can be provided to drive the sealing rubber ring to be tightly attached to the connection between the bolt and the mounting hole;

[0008] A slide plate is slidably connected to the inner wall of the bearing cover body, and a pull plate is fixedly installed on the slide plate passing through the bearing cover body, a pull rod is fixedly installed on the side wall of the pull plate, and a sealing gasket is fixedly installed on the outer wall of the pull plate. The sealing gasket can be provided to seal the joint between the pull plate and the bearing cover body. An inclined groove is provided on the slide plate, and the outer wall of the guide shaft is fitted on the inner wall of the inclined groove. The inclined groove can provide guidance for the guide shaft;

[0009] A return spring, one end of which is fixedly mounted on the outer wall of the pull plate, and the other end of which is fixedly mounted on the inner wall of the bearing cover body.

[0010] Preferably, the positioning mechanism includes a rotating rod, one end of which is rotatably connected to the outer wall of the bearing cover body, and the other end of the rotating rod is fixedly mounted with a limit plate, and the limit plate can be supported by arranging the rotating rod.

[0011] Preferably, a through slot is provided on the limiting plate.

[0012] Preferably, a limit axis is fixedly mounted on one end of the pull rod away from the pull plate.

[0013] Preferably, the outer wall of the limiting shaft is fitted on the inner wall of the through slot, and the limiting plate can be pushed by arranging the limiting shaft to cooperate with the through slot.

[0014] Preferably, the outer wall of the limiting plate is fitted on the outer wall of the bolt, and the bolt can be limited by providing the limiting plate.

[0015] Compared with the prior art, the present invention provides a bearing gland with a sealing structure, which has the following beneficial effects:

[0016] 1. The bearing gland with a sealing structure can not only seal the connection between the bolt and the mounting hole through the setting of the sealing mechanism, but also prevent the sealing rubber ring from being squeezed when the bolt is tightened, thereby avoiding the sealing rubber ring from being damaged. It can not only increase the service life of the sealing rubber ring, but also enable the sealing rubber ring to fully exert its sealing effect.

[0017] 2. The bearing gland with a sealing structure can drive the limit plate to fit against the outer wall of the bolt through the rotation of the rotating rod. When the limit plate fits against the outer wall of the bolt, the limit plate can be used to limit the bolt to prevent the bolt from loosening due to vibration during the operation of the pump, thereby improving the stability of the bolt and allowing the bearing gland body to be stably installed on the pump through the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a partial cross-sectional structural diagram of the bearing gland body of the utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the sealing mechanism and positioning mechanism of the utility model;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the top plate of the utility model.

[0022] In the figure: 1. Bearing cover body; 2. Mounting hole; 3. Bolt; 4. Sealing mechanism; 41. Guide rod; 42. Slide plate; 43. Return spring; 44. Top plate; 45. Guide shaft; 46. Sealing rubber ring; 47. Inclined groove; 48. Pull plate; 49. Pull rod; 410. Sealing gasket; 5. Positioning mechanism; 51. Rotating rod; 52. Limiting plate; 53. Through groove; 54. Limiting shaft. DETAILED DESCRIPTION

[0023] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a bearing cover with a sealing structure, comprising a bearing cover body 1 and a bolt 3, a mounting hole 2 being opened on the bearing cover body 1, the bolt 3 being threadedly connected to the inner wall of the mounting hole 2, a sealing mechanism 4 being provided on the bearing cover body 1, and the connection between the bolt 3 and the mounting hole 2 can be sealed by setting the sealing mechanism 4, and a positioning mechanism 5 for preventing the bolt 3 from loosening is provided on the bearing cover body 1, and the positioning mechanism 5 can prevent the bolt 3 from loosening, thereby improving the stability of the bearing cover body 1.

[0024] The sealing mechanism 4 includes a guide rod 41, a slide 42, a return spring 43, a top plate 44, a guide shaft 45, a sealing rubber ring 46, an inclined groove 47, a pull plate 48, a pull rod 49, and a sealing gasket 410; the guide rod 41 is slidably connected to the inner wall of the bearing cover body 1, the outer wall of the guide rod 41 is fixedly mounted with a top plate 44, the side wall of the guide rod 41 is fixedly mounted with a guide shaft 45, the outer wall of the top plate 44 is fixedly mounted with a sealing rubber ring 46, and the connection between the bolt 3 and the mounting hole 2 can be sealed by the sealing rubber ring 46, the slide 42 is slidably connected to the inner wall of the bearing cover body 1, and the slide 42 passes through the bearing cover body 1 and is fixedly mounted with a pull plate 48. The slide plate 42 is slidably connected to the through-hole of the bearing cover body 1, a pull rod 49 is fixedly installed on the side wall of the pull plate 48, and a sealing gasket 410 is fixedly installed on the outer wall of the pull plate 48. An inclined groove 47 is provided on the slide plate 42, and the outer wall of the guide shaft 45 fits against the inner wall of the inclined groove 47. When the slide plate 42 slides on the inner wall of the bearing cover body 1, it cooperates with the inclined groove 47 and the guide shaft 45 to drive the guide rod 41 to slide on the inner wall of the bearing cover body 1. One end of the reset spring 43 is fixedly installed on the outer wall of the pull plate 48, and the other end of the reset spring 43 is fixedly installed on the inner wall of the bearing cover body 1. The elasticity of the reset spring 43 can drive the pull plate 48 to move and reset.

[0025] The above-mentioned positioning mechanism 5 includes a rotating rod 51, a limiting plate 52, a through slot 53, and a limiting shaft 54; one end of the rotating rod 51 is rotatably connected to the outer wall of the bearing cover body 1, and the other end of the rotating rod 51 is fixedly installed with the limiting plate 52. When the limiting plate 52 drives the rotating rod 51 to rotate on the outer wall of the bearing cover body 1 and fits against the outer wall of the bolt 3, the limiting plate 52 can be used to limit the bolt 3 to prevent the bolt 3 from loosening due to vibration during the operation of the pump. A through slot 53 is provided on the limiting plate 52, and the end of the pull rod 49 away from the pull plate 48 is fixedly installed with the limiting shaft 54, the outer wall of the limiting shaft 54 ​​fits against the inner wall of the through slot 53, and the outer wall of the limiting plate 52 fits against the outer wall of the bolt 3. When the pull rod 49 moves, it can cooperate with the limiting shaft 54 ​​and the through slot 53 to drive the limiting plate 52 to swing.

[0026] Working principle: When the bearing cover body 1 needs to be installed on the pump through the bolt 3, first pull the pull plate 48 through the pull rod 49, so that the pull plate 48 is driven gradually away from the bearing cover body 1. At the same time, the pull plate 48 will stretch the reset spring 43 and drive the slide plate 42 to gradually slide out to the outside of the bearing cover body 1. In the process of the slide plate 42 sliding out to the outside of the bearing cover body 1, the inclined groove 47 will squeeze the guide shaft 45, so that the guide shaft 45 pushes the guide rod 41. At this time, the guide rod 41 will slide on the inner wall of the bearing cover body 1 and drive the top plate 44 to gradually enter the inside of the mounting hole 2. At the same time, the top plate 44 will drive the sealing rubber ring 46 to move synchronously. At this time, the bolt 3 can be inserted into the inside of the mounting hole 2 and connected to the pump. After tightening the bolt 3, loosen the pull rod 49, so that the pull rod 49 can stop pulling the pull plate 48. At this time, the reset spring 43 will pull the pull plate 48, so that the pull plate 48 gradually approaches the bearing cover body. 1 and drives the sealing gasket 410 to be tightly attached to the outer wall of the bearing cover body 1. The sealing gasket 410 can be used to seal the joint between the pull plate 48 and the bearing cover body 1. In the process of gradually approaching the bearing cover body 1, the pull plate 48 will drive the slide plate 42 to gradually slide into the interior of the bearing cover body 1. At the same time, the inclined groove 47 provided on the slide plate 42 will squeeze the guide shaft 45, so that the guide shaft 45 pushes the guide rod 41. At this time, the guide rod 41 will slide on the inner wall of the bearing cover body 1 and drive the top plate 44 to gradually approach the bolt 3. At the same time, the top plate 44 will drive the sealing rubber ring 46 to be tightly attached to the connection between the bolt 3 and the mounting hole 2. At this time, the sealing rubber ring 46 can be used to seal the connection between the bolt 3 and the mounting hole 2. At the same time, it can also prevent the sealing rubber ring 46 from being subjected to the extrusion force when the bolt 3 is tightened, thereby preventing the sealing rubber ring 46 from being damaged and allowing the sealing rubber ring 46 to fully exert its sealing effect.

[0027] When the pull plate 48 is gradually approaching the bearing cover body 1, the pull rod 49 will drive the limit shaft 54 ​​to move against the inner wall of the through groove 53, and the limit shaft 54 ​​will push the limit plate 52. At this time, the limit plate 52 will drive the rotating rod 51 to rotate on the outer wall of the bearing cover body 1, and the limit plate 52 will gradually move away from the mounting hole 2. When the pull plate 48 is gradually approaching the bearing cover body 1, it will drive the pull rod 49 to move synchronously, and at this time the pull rod 49 will drive the limit shaft 54 ​​to move against the inner wall of the through groove 53, and the limit shaft 54 ​​will push the limit plate 52, so that the limit plate 52 drives the rotating rod 51 to rotate on the outer wall of the bearing cover body 1 and gradually approach the bolt 3. After the limit plate 52 is in contact with the outer wall of the bolt 3, the limit plate 52 can be used to limit the bolt 3 to prevent the bolt 3 from loosening due to vibration during the operation of the pump, thereby improving the stability of the bolt 3 and allowing the bearing cover body 1 to be stably installed on the pump through the bolt 3.

[0028] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A bearing gland with a sealing structure, comprising a bearing gland body (1) and a bolt (3), characterized in that: The bearing cover body (1) is provided with a mounting hole (2), the bolt (3) is threadedly connected to the inner wall of the mounting hole (2), the bearing cover body (1) is provided with a sealing mechanism (4), the bearing cover body (1) is provided with a positioning mechanism (5) for preventing the bolt (3) from loosening, and the sealing mechanism (4) comprises: A guide rod (41), the guide rod (41) being slidably connected to the inner wall of the bearing cover body (1), a top plate (44) being fixedly mounted on the outer wall of the guide rod (41), a guide shaft (45) being fixedly mounted on the side wall of the guide rod (41), and a sealing rubber ring (46) being fixedly mounted on the outer wall of the top plate (44); A slide plate (42), wherein the slide plate (42) is slidably connected to the inner wall of the bearing cover body (1), and the slide plate (42) passes through the bearing cover body (1) and is fixedly mounted with a pull plate (48), a pull rod (49) is fixedly mounted on the side wall of the pull plate (48), and a sealing gasket (410) is fixedly mounted on the outer wall of the pull plate (48), an inclined groove (47) is formed on the slide plate (42), and the outer wall of the guide shaft (45) is fitted on the inner wall of the inclined groove (47); A return spring (43), one end of the return spring (43) is fixedly mounted on the outer wall of the pull plate (48), and the other end of the return spring (43) is fixedly mounted on the inner wall of the bearing cover body (1).

2. The bearing gland with a sealing structure according to claim 1, characterized in that: The positioning mechanism (5) comprises a rotating rod (51), one end of the rotating rod (51) is rotatably connected to the outer wall of the bearing cover body (1), and the other end of the rotating rod (51) is fixedly mounted with a limiting plate (52).

3. The bearing gland with a sealing structure according to claim 2, characterized in that: A through slot (53) is provided on the limiting plate (52).

4. The bearing gland with a sealing structure according to claim 1, characterized in that: A limiting shaft (54) is fixedly mounted on one end of the pull rod (49) away from the pull plate (48).

5. The bearing gland with a sealing structure according to claim 4, characterized in that: The outer wall of the limiting shaft (54) is fitted onto the inner wall of the through groove (53).

6. The bearing gland with a sealing structure according to claim 2, characterized in that: The outer wall of the limiting plate (52) is fitted onto the outer wall of the bolt (3).

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