Bearing box lubricating oil sealing mechanism

Abstract

The utility model discloses a bearing box lubricating oil sealing mechanism which comprises a main body unit, the main body unit comprises a bearing box body, a bearing hole is formed in the center of the bearing box body, a bearing shaft body is arranged in the bearing hole in a rotating mode, two first rotating rings and two second rotating rings are symmetrically and fixedly connected to the bearing shaft body in a sleeved mode, and the two first rotating rings and the two second rotating rings are arranged on the main body unit. The bearing box has the beneficial effects that the first rotating ring and the second rotating ring are fixedly connected with the bearing shaft body and rotate along with the bearing shaft body, the first fixing ring and the second fixing ring play a sealing role on the bearing shaft body, and the sealing performance of the bearing box is improved; an electric rotating disc, a cam and a reset spring are arranged to drive a push rod to move left and right, air can be intermittently blown into an air inlet through the push rod and a piston plate and discharged from an air outlet, water vapor, dust and other impurities between a first rotating ring and a second rotating ring are blown out, and therefore internal lubricating oil is prevented from being polluted, and the lubricating effect of the lubricating oil is guaranteed; and adverse effects on normal operation of the bearing are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing box lubrication, in particular to a bearing box lubricating oil sealing mechanism. Background Art

[0002] The bearing box, also known as the winch box, is a box part that supports and lubricates the bearing. It also bears the axial and radial forces generated by the equipment during operation.

[0003] The bearing box is equipped with lubricating oil to ensure the efficient and smooth operation of the bearing. However, the sealing performance of some bearing boxes on the market is not satisfactory, which leads to oil leakage in the actual working process, and impurities such as water vapor and dust from the outside easily invade the bearing box, thereby contaminating the lubricating oil, weakening its lubrication effect, and adversely affecting the normal operation of the bearing.

[0004] Therefore, a bearing box lubricating oil sealing mechanism is needed to solve the above problems. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In view of the above-mentioned problems of the lubricating oil sealing mechanism of the bearing box, the present utility model is proposed.

[0007] Therefore, the purpose of the utility model is to provide a bearing box lubricating oil sealing mechanism, which is used to solve the problem that "the sealing performance of some bearing boxes on the market is not satisfactory, which leads to oil leakage of the oil seal during actual working process, and external impurities such as water vapor and dust can easily invade the interior of the bearing box, thereby contaminating the lubricating oil, weakening its lubrication effect, and causing adverse effects on the normal operation of the bearing."

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions: a bearing box lubricating oil sealing mechanism, comprising:

[0009] A main body unit, the main body unit comprises a bearing housing, a bearing hole is provided at the center of the bearing housing, a bearing shaft is rotatably arranged in the bearing hole, two No. 1 rotating circles and two No. 2 rotating circles are symmetrically and fixedly sleeved on the bearing shaft, a No. 1 fixing ring is fixedly sleeved on each of the No. 1 rotating circles, two No. 1 annular holes are symmetrically provided on the inner wall of the bearing hole, each of the No. 1 fixing rings is rotatably connected to the No. 1 annular hole, a No. 2 annular hole is provided on the side wall of each of the No. 2 rotating circles, two No. 2 fixing rings are symmetrically and fixedly connected on the inner wall of the bearing hole, each of the No. 2 fixing rings is rotatably connected to the No. 2 annular hole, two air inlet holes are symmetrically provided on the upper end of the bearing housing, and two air outlet holes are symmetrically provided on the lower end of the bearing housing;

[0010] An auxiliary sealing assembly, the auxiliary sealing assembly includes a fixed box, the fixed box is fixedly connected to the upper end of the bearing box body, the upper end of the fixed box is fixedly connected to an electric turntable, the output end of the electric turntable passes through the fixed box and is fixedly connected to a cam, two straight cylinders are symmetrically fixedly connected to both sides of the fixed box, a piston plate is slidably connected to the inner wall of each straight cylinder, a push rod is fixedly connected to the opposite side of each piston plate, a return spring is sleeved on each push rod, a connecting block is fixedly connected to the opposite ends of the two push rods, the lower ends of the two straight cylinders are fixedly connected to an exhaust pipe, the upper end of each straight cylinder is fixedly connected to an intake pipe, and an intake check valve and an exhaust check valve are fixedly installed in each of the intake pipe and the exhaust pipe, respectively.

[0011] As a preferred solution of the bearing box lubricating oil sealing mechanism described in the utility model, a limiting groove is provided on the side wall of the cam, the limiting groove is annular, and the opposite ends of the two connecting blocks are both against the limiting groove and slidably connected to the inner wall of the limiting groove.

[0012] As a preferred solution of the bearing box lubricating oil sealing mechanism of the utility model, the opposite ends of the two push rods penetrate the side walls of the straight tube and the fixed box and are slidably connected in the inner walls of the straight tube and the fixed box.

[0013] As a preferred solution of the bearing box lubricating oil sealing mechanism described in the utility model, the lower ends of the two exhaust pipes are connected to the air inlet holes, and the multiple air inlet holes and air outlet holes are arranged between the first rotating circle and the second rotating circle.

[0014] As a preferred solution of the bearing box lubricating oil sealing mechanism of the utility model, wherein: a plurality of mounting holes are symmetrically opened on the bearing box body, and two oil inlet pipes are symmetrically fixedly connected to the upper end of the bearing box body.

[0015] As a preferred solution of the bearing box lubricating oil sealing mechanism of the utility model, the two ends of the two return springs are respectively fixedly connected to the side wall of the piston plate and the inner wall of the straight cylinder.

[0016] Beneficial effects of the utility model:

[0017] The No. 1 rotating circle and the No. 2 rotating circle are fixedly connected to the bearing shaft and rotate therewith, and the No. 1 fixing ring and the No. 2 fixing ring both seal it, thereby improving the sealing performance of the bearing box; the push rod is driven to move left and right through the setting of the electric turntable, cam and reset spring, and air can be intermittently blown into the air inlet and discharged from the air outlet through the push rod and the piston plate, so as to blow out impurities such as water vapor and dust between the No. 1 rotating circle and the No. 2 rotating circle, thereby avoiding contamination of the internal lubricating oil, ensuring the lubricating effect of the lubricating oil, and avoiding adverse effects on the normal operation of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 The utility model is a front structural schematic diagram of a bearing box lubricating oil sealing mechanism.

[0020] Figure 2 The utility model is a structural schematic diagram of a cam in a bearing box lubricating oil sealing mechanism.

[0021] Figure 3 The utility model is a partial cross-sectional structural schematic diagram of a bearing box lubricating oil sealing mechanism.

[0022] Figure 4 The utility model is a structural schematic diagram of a No. 2 fixing ring in a bearing box lubricating oil sealing mechanism.

[0023] Figure 5 The utility model is a structural schematic diagram of a bearing shaft body in a bearing box lubricating oil sealing mechanism.

[0024] Figure 6 The utility model is a structural schematic diagram of a bearing box body in a bearing box lubricating oil sealing mechanism.

[0025] Description of the drawings: 100, main unit; 101, bearing housing; 102, bearing shaft; 103, rotating circle No. 1; 104, fixing ring No. 1; 105, rotating circle No. 2; 106, fixing ring No. 2; 200, auxiliary sealing assembly; 201, fixing box; 202, electric turntable; 203, cam; 204, straight cylinder; 205, piston plate; 206, push rod; 207, return spring. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagram. When the embodiments of the present invention are described in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0030] Reference Figure 1-Figure 6 , is an embodiment of the utility model, and provides a bearing box lubricating oil sealing mechanism, which includes:

[0031] The main unit 100 comprises a bearing housing 101, a bearing hole is provided at the center of the bearing housing 101, a bearing shaft 102 is rotatably provided in the bearing hole, two No. 1 rotating circles 103 and two No. 2 rotating circles 105 are symmetrically fixedly sleeved on the bearing shaft 102, a No. 1 fixing ring 104 is fixedly sleeved on each No. 1 rotating circle 103, two No. 1 annular holes are symmetrically provided on the inner wall of the bearing hole, each No. 1 fixing ring 104 is rotatably connected to the No. 1 annular hole, a No. 2 annular hole is provided on the side wall of each No. 2 rotating circle 105, two No. 2 fixing rings 106 are symmetrically fixedly connected to the inner wall of the bearing hole, each No. 2 fixing ring 106 is rotatably connected to the No. 2 annular hole, two air inlet holes are symmetrically provided on the upper end of the bearing housing 101, and two air outlet holes are symmetrically provided on the lower end of the bearing housing 101;

[0032] Auxiliary sealing assembly 200, the auxiliary sealing assembly 200 includes a fixed box 201, the fixed box 201 is fixedly connected to the upper end of the bearing box body 101, the upper end of the fixed box 201 is fixedly connected with an electric turntable 202, the output end of the electric turntable 202 passes through the fixed box 201 and is fixedly connected with a cam 203, two straight cylinders 204 are symmetrically fixedly connected on both sides of the fixed box 201, a piston plate 205 is slidably connected to the inner wall of each straight cylinder 204, a push rod 206 is fixedly connected to the opposite side of each piston plate 205, a return spring 207 is sleeved on each push rod 206, and a connecting block is fixedly connected to the opposite ends of the two push rods 206, the lower ends of the two straight cylinders 204 are fixedly connected with an exhaust pipe, the upper end of each straight cylinder 204 is fixedly connected with an intake pipe, and an intake check valve and an exhaust check valve are fixedly installed in each intake pipe and exhaust pipe, respectively.

[0033] The No. 1 rotating circle 103 and the No. 2 rotating circle 105 are fixedly connected to the bearing shaft 102 and rotate therewith, and the No. 1 fixing ring 104 and the No. 2 fixing ring 106 both seal it, thereby improving the sealing performance of the bearing box; the push rod 206 is driven to move left and right by the setting of the electric turntable 202, the cam 203 and the reset spring 207, and air can be intermittently blown into the air inlet and discharged from the air outlet through the push rod 206 and the piston plate 205, so as to blow out impurities such as water vapor and dust between the No. 1 rotating circle 103 and the No. 2 rotating circle 105, thereby avoiding contamination of the internal lubricating oil, ensuring the lubricating effect of the lubricating oil, and avoiding adverse effects on the normal operation of the bearing.

[0034] A limiting groove is provided on the side wall of the cam 203 , and the limiting groove is annular. The opposite ends of the two connecting blocks are both against the limiting groove and slidably connected to the inner wall of the limiting groove, and the push rod 206 is pushed to move by the cam 203 .

[0035] The opposite ends of the two push rods 206 penetrate through the side walls of the straight tube 204 and the fixed box 201 and are slidably connected in the inner walls of the straight tube 204 and the fixed box 201 .

[0036] The lower ends of the two exhaust pipes are both connected to the air inlet holes, and the multiple air inlet holes and air outlet holes are all arranged between the first rotating circle 103 and the second rotating circle 105 .

[0037] Among them, a plurality of mounting holes are symmetrically opened on the bearing housing 101, and two oil inlet pipes are symmetrically fixedly connected to the upper end of the bearing housing 101, which are easy to install through the mounting holes.

[0038] The two ends of the two return springs 207 are respectively fixedly connected to the side wall of the piston plate 205 and the inner wall of the straight cylinder 204 , so that the return springs 207 can be used to return the piston plate 205 .

[0039] Working principle: When in use, the No. 1 rotating circle 103 and the No. 2 rotating circle 105 are fixedly connected to the bearing shaft 102 and rotate therewith, and the No. 1 fixing ring 104 and the No. 2 fixing ring 106 both seal it, thereby improving the sealing of the bearing box; further, the electric turntable 202 is started, and its output end drives the cam 203 to rotate, and the push rod 206 is driven to move left and right through the cam 203 and the reset spring 207, and the piston plate 205 is driven to move left and right through the push rod 206, so that air is intermittently blown into the air inlet and discharged from the air outlet, and impurities such as water vapor and dust between the No. 1 rotating circle 103 and the No. 2 rotating circle 105 are blown out, thereby avoiding contamination of the internal lubricating oil, ensuring the lubricating effect of the lubricating oil, and avoiding adverse effects on the normal operation of the bearing. The contents not described in detail in this description belong to the prior art known to professional and technical personnel in this field.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A bearing box lubricating oil sealing mechanism, characterized in that: include: The main unit (100) comprises a bearing housing (101), a bearing hole is provided at the center of the bearing housing (101), a bearing shaft (102) is rotatably arranged in the bearing hole, two first rotating circles (103) and two second rotating circles (105) are symmetrically and fixedly sleeved on the bearing shaft (102), each of the first rotating circles (103) is fixedly sleeved with a first fixing ring (104), and two symmetrically and symmetrically arranged on the inner wall of the bearing hole are provided. A first annular hole, each of the first fixing rings (104) is rotatably connected in the first annular hole, a second annular hole is opened on the side wall of each of the second rotating rings (105), two second fixing rings (106) are symmetrically fixedly connected on the inner wall of the bearing hole, each of the second fixing rings (106) is rotatably connected in the second annular hole, the upper end of the bearing housing (101) is symmetrically opened with two air inlet holes, and the lower end of the bearing housing (101) is symmetrically opened with two air outlet holes; The auxiliary sealing assembly (200) comprises a fixed box (201), the fixed box (201) is fixedly connected to the upper end of the bearing housing (101), the upper end of the fixed box (201) is fixedly connected to an electric turntable (202), the output end of the electric turntable (202) passes through the fixed box (201) and is fixedly connected to a cam (203), two straight cylinders (204) are symmetrically fixedly connected to the two sides of the fixed box (201), and the inner wall of each straight cylinder (204) is A piston plate (205) is slidably connected, a push rod (206) is fixedly connected to the opposite side of each piston plate (205), a return spring (207) is sleeved on each push rod (206), a connecting block is fixedly connected to the opposite ends of the two push rods (206), the lower ends of the two straight cylinders (204) are fixedly connected to the exhaust pipe, the upper end of each straight cylinder (204) is fixedly connected to the intake pipe, and an intake check valve and an exhaust check valve are fixedly installed in each intake pipe and exhaust pipe, respectively.

2. A bearing box lubricating oil sealing mechanism according to claim 1, characterized in that: A limiting groove is provided on the side wall of the cam (203), the limiting groove is annular, and opposite ends of the two connecting blocks are both against the limiting groove and slidably connected to the inner wall of the limiting groove.

3. A bearing box lubricating oil sealing mechanism according to claim 1, characterized in that: The opposite ends of the two push rods (206) penetrate the side walls of the straight cylinder (204) and the fixed box (201) and are slidably connected in the inner walls of the straight cylinder (204) and the fixed box (201).

4. A bearing box lubricating oil sealing mechanism according to claim 1, characterized in that: The lower ends of the two exhaust pipes are both connected to the air inlet hole, and the plurality of air inlet holes and air outlet holes are all arranged between the first rotating circle (103) and the second rotating circle (105).

5. The bearing box lubricating oil sealing mechanism according to claim 1, characterized in that: The bearing housing (101) is symmetrically provided with a plurality of mounting holes, and the upper end of the bearing housing (101) is symmetrically fixedly connected with two oil inlet pipes.

6. A bearing box lubricating oil sealing mechanism according to claim 1, characterized in that: Both ends of the two return springs (207) are fixedly connected to the side wall of the piston plate (205) and the inner wall of the straight cylinder (204) respectively.

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