Low-friction heavy-load mechanical double-row tapered roller bearing device

Abstract

The utility model provides a low-friction heavy-load mechanical double-row tapered roller bearing device, and relates to the field of roller bearings. A first arc-shaped groove is formed in the inner side of the lower bearing seat, and a double-row tapered roller bearing body is mounted in the first arc-shaped groove; the right side of the upper part of the lower bearing seat is rotationally connected with an upper bearing seat through a rotating shaft; a fixing bolt is movably inserted into the upper portion of the left side of the upper bearing seat. The upper bearing seat is rotationally connected to the right side of the upper part of the lower bearing seat, so that when the double-row tapered roller bearing body needs to be disassembled, the disassembly work of the double-row tapered roller bearing body can be completed only by unscrewing one fixing bolt, and the convenience during maintenance of the double-row tapered roller bearing is improved; the problem that when an existing double-row tapered roller bearing needs to be maintained and disassembled, the disassembly work can be completed only by unscrewing and taking down two bolts, and therefore the convenience of maintenance of the double-row tapered roller bearing is reduced is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of roller bearings, in particular to a low-friction heavy-load mechanical double-row tapered roller bearing device. Background Art

[0002] Low friction heavy load mechanical double row tapered roller bearing unit is a bearing specially designed to withstand high load and low friction requirements. In order to achieve low friction performance, double row tapered roller bearings are usually made of high-quality materials, and are precisely processed and heat treated. The surface quality and accuracy of the rolling elements are strictly controlled to reduce friction and wear. In addition, the lubrication of the bearing is also a key factor in reducing friction. Low friction heavy load mechanical double row tapered roller bearing units have a wide range of applications, including large mining machinery, metallurgical equipment, wind turbines, ship propulsion systems and other occasions that need to withstand high loads and low friction requirements.

[0003] However, there are still some problems in the use of the existing double-row tapered roller bearings. For example, the patent application number is: CN202223205897.0 discloses a double-row tapered roller bearing with high stability. Although the double-row tapered roller bearing is provided with a refueling hole to facilitate the addition of lubricating oil to the double-row tapered roller bearing body, when the double-row tapered roller bearing needs to be repaired and disassembled, since the double-row tapered roller bearing uses two bolts to fix the lower bearing seat and the upper bearing seat together, when the upper bearing seat is removed, both bolts need to be loosened and removed to complete the disassembly work, thereby reducing the convenience of the double-row tapered roller bearing during maintenance. In addition, although the double-row tapered roller bearing uses a spring to push the block to clamp the block on the upper surface of the bolt to prevent the bolt from loosening under the influence of mechanical vibration, when the bolt needs to be loosened and removed, the block needs to be pushed outward by hand to loosen and remove the bolt, thereby reducing the practicality of the double-row tapered roller bearing. Utility Model Content

[0004] The disclosed embodiment relates to a low-friction, heavy-load mechanical double-row tapered roller bearing device, which rotatably connects the upper bearing seat to the upper right side of the lower bearing seat, so that when the double-row tapered roller bearing body needs to be disassembled, only one fixing bolt needs to be loosened to complete the disassembly of the double-row tapered roller bearing body, thereby improving the convenience of the double-row tapered roller bearing during maintenance; through the cooperation of the rotating rod and the limit block, when it is necessary to loosen and remove the fixing bolt, there is no need to push the sliding block outward by hand, thereby improving the practicality of the double-row tapered roller bearing.

[0005] According to a first aspect of the present disclosure, a low-friction, heavy-load mechanical double-row tapered roller bearing device is provided, which specifically includes: a lower bearing seat; a first arc-shaped groove is provided on the inner side of the lower bearing seat, and a double-row tapered roller bearing body is installed inside the first arc-shaped groove; the upper right side of the upper portion of the lower bearing seat is rotatably connected to the upper bearing seat via a rotating shaft, and a fixing bolt is movably inserted into the upper left portion of the upper bearing seat; a threaded blind hole is provided on the left side of the top of the lower bearing seat, and the threaded blind hole is used for threaded connection with the fixing bolt; an anti-loosening mechanism is provided on the upper end face of the left side of the upper bearing seat; a strip-shaped positioning slot is provided on the lower side inside the first arc-shaped groove.

[0006] In at least some embodiments, the double-row tapered roller bearing body includes a bearing inner ring, a retainer, a bearing outer ring, rollers, an oil inlet hole and a strip positioning block, the bearing inner ring is mounted on the outside of the retainer, and rollers are rotatably connected to the retainer in a circular array; the bearing outer ring is mounted on the outside of the retainer and the rollers, and the upper side of the outer circumferential surface of the bearing outer ring is provided with two oil inlet holes in a front-to-back symmetrical manner, and the lower side of the outer circumferential surface of the bearing outer ring is provided with a strip positioning block.

[0007] In at least some embodiments, when the double-row tapered roller bearing body is installed inside the first arc-shaped groove, the strip-shaped positioning plug-in block will be plugged into the strip-shaped positioning slot.

[0008] In at least some embodiments, two threaded thickening blocks are symmetrically arranged on the top of the upper bearing seat, and a first threaded through hole is opened on the top surface of each threaded thickening block; a second threaded through hole is opened in the middle of the upper end surface on the left side of the upper bearing seat.

[0009] In at least some embodiments, each of the first threaded through holes is threadedly connected to a sealing bolt, and a T-shaped connecting column is provided on the upper end of each sealing bolt, and a connecting rope is sleeved on the outside of each T-shaped connecting column; the other ends of the two connecting ropes are fixedly connected to the upper bearing seat; an L-shaped limit block is provided on the upper end surface of the left side of the upper bearing seat, and a second arc-shaped groove is opened on the inner side of the upper bearing seat, and the second arc-shaped groove is used to limit the double-row tapered roller bearing body.

[0010] In at least some embodiments, the upper end of the fixing bolt is externally fixedly connected to a limiting gear, and when the upper bearing seat is in a fixed state on the upper part of the lower bearing seat, the threaded blind hole and the second threaded through hole are both threadedly connected to the fixing bolt.

[0011] In at least some embodiments, the anti-loosening mechanism includes a box body, a sliding block, a tightening block, a limiting tooth block, a spring guide rod, a rotating rod and a limiting block. The box body is fixedly mounted on the upper end face of the left side of the lower bearing seat, and the sliding block is slidably connected inside the box body; the rear end face of the sliding block is provided with a tightening block that passes through the rear side wall of the box body, and the rear end face of the tightening block is provided with two limiting tooth blocks; the front end face of the sliding block is provided with two spring guide rods that pass through the front side wall of the box body, and the outside of each spring guide rod is located inside the box body and is sleeved with a spring; the upper end face of the sliding block is rotatably connected to the rotating rod through a rotating shaft; and a limiting block is provided on the top of the box body.

[0012] In at least some embodiments, when the anti-loosening mechanism is in the anti-loosening state, the rear ends of the two limiting tooth blocks are in close contact with the front side of the outer peripheral surface of the limiting gear.

[0013] The utility model provides a low-friction heavy-load mechanical double-row tapered roller bearing device, which has the following beneficial effects:

[0014] By rotatably connecting the upper bearing seat to the upper right side of the lower bearing seat, when the double-row tapered roller bearing body needs to be disassembled, only one fixing bolt needs to be loosened to complete the disassembly of the double-row tapered roller bearing body, thereby improving the convenience of maintenance of the double-row tapered roller bearing.

[0015] Through the cooperation between the rotating rod and the limit block, when the fixing bolt needs to be loosened and removed, the fixing bolt can be loosened and removed without pushing the sliding block outwards by hand, thereby improving the practicality of the double-row tapered roller bearing.

[0016] By providing the sealing bolt, the first threaded through hole can be effectively protected to prevent dust from entering, and by providing the connecting rope, the sealing bolt can be prevented from being lost after being loosened. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0018] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached picture:

[0020] Figure 1 A structural diagram showing the overall structure of the present application;

[0021] Figure 2 A schematic diagram showing the structure of the present application from a rear perspective;

[0022] Figure 3 A schematic diagram of the structure of the present application in a split state is shown;

[0023] Figure 4 The schematic diagram of the structure of the double-row tapered roller bearing body after being disassembled is shown;

[0024] Figure 5 The schematic diagram of the structure after the upper bearing seat, fixing bolts and sealing bolts of the present application are disassembled is shown;

[0025] Figure 6 The schematic diagram shows the structure of the box body and the sliding block after being separated.

[0026] Reference numerals list

[0027] Lower bearing seat; 101, threaded blind hole; 102, first arc-shaped groove; 103, strip-shaped positioning slot;

[0028] Double-row tapered roller bearing body; 201, bearing inner ring; 202, cage; 203, bearing outer ring; 204, roller; 205, oil inlet hole; 206, strip positioning plug;

[0029] Upper bearing seat; 301, threaded thickening block; 302, sealing bolt; 303, connecting rope; 304, L-shaped limit block; 305, second arc-shaped groove; 306, first threaded through hole; 307, second threaded through hole;

[0030] Fixing bolt; 401, limiting gear;

[0031] Anti-loosening mechanism; 501, box body; 502, sliding block; 503, tightening block; 504, limiting tooth block; 505, spring guide rod; 506, rotating rod; 507, limiting block. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Example 1: Please refer to Figures 1 to 6 :

[0034] The utility model proposes a low-friction heavy-load mechanical double-row tapered roller bearing device, comprising: a lower bearing seat 1; a first arc-shaped groove 102 is opened on the inner side of the lower bearing seat 1, and a double-row tapered roller bearing body 2 is installed inside the first arc-shaped groove 102; an upper bearing seat 3 is rotatably connected to the right side of the upper portion of the lower bearing seat 1 through a rotating shaft, and a fixing bolt 4 is movably inserted into the upper left portion of the upper bearing seat 3; a threaded blind hole 101 is opened on the left side of the top of the lower bearing seat 1, and the threaded blind hole 101 is used for threaded connection with the fixing bolt 4; an anti-loosening mechanism 5 is arranged on the upper end surface of the left side of the upper bearing seat 3; a strip-shaped positioning slot 103 is opened on the lower side inside the first arc-shaped groove 102.

[0035] The double-row tapered roller bearing body 2 includes a bearing inner ring 201, a retainer 202, a bearing outer ring 203, rollers 204, an oil inlet hole 205 and a strip positioning block 206. The retainer 202 is installed on the outside of the bearing inner ring 201, and the rollers 204 are rotatably connected to the retainer 202 in a ring array; the bearing outer ring 203 is installed on the outside of the retainer 202 and the rollers 204, and two oil inlet holes 205 are symmetrically provided on the upper side of the outer circumference of the bearing outer ring 203, and a strip positioning block 206 is provided on the lower side of the outer circumference of the bearing outer ring 203.

[0036] When the double-row tapered roller bearing body 2 is installed inside the first arc-shaped groove 102, the strip positioning block 206 will be plugged into the strip positioning slot 103; through the cooperation between the strip positioning block 206 and the strip positioning slot 103, an effective positioning effect can be obtained when the double-row tapered roller bearing body 2 is installed inside the first arc-shaped groove 102, and at this time, the two oil inlet holes 205 just match the positions of the two first threaded through holes 306, making it more convenient to install and align the double-row tapered roller bearing body 2.

[0037] Two threaded thickened blocks 301 are symmetrically arranged on the top of the upper bearing seat 3, and a first threaded through hole 306 is opened on the top surface of each threaded thickened block 301; a second threaded through hole 307 is opened in the middle of the upper end surface on the left side of the upper bearing seat 3; a sealing bolt 302 is threadedly connected to the inside of each first threaded through hole 306, and a T-shaped connecting column is arranged on the upper end of each sealing bolt 302, and a connecting rope 303 is sleeved on the outside of each T-shaped connecting column; the other ends of the two connecting ropes 303 are fixedly connected to the upper bearing seat 3; an L-shaped limit block 304 is arranged on the upper end surface on the left side of the upper bearing seat 3, and a second arc-shaped groove 305 is opened on the inner side of the upper bearing seat 3, and the second arc-shaped groove 305 is used to limit the double-row tapered roller bearing body 2.

[0038] Embodiment 2, based on embodiment 1, as Figure 1 and Figure 6As shown, the upper end of the fixing bolt 4 is externally fixedly connected with a limit gear 401 . When the upper bearing seat 3 is in a fixed state on the upper part of the lower bearing seat 1 , the threaded blind hole 101 and the second threaded through hole 307 are both threadedly connected with the fixing bolt 4 .

[0039] The anti-loosening mechanism 5 includes a box body 501, a sliding block 502, a tightening block 503, a limiting tooth block 504, a spring guide rod 505, a rotating rod 506 and a limiting block 507. The box body 501 is fixedly mounted on the upper end surface of the left side of the lower bearing seat 1, and the sliding block 502 is slidably connected inside the box body 501; the rear end surface of the sliding block 502 is provided with a tightening block 503 that penetrates the rear side wall of the box body 501, and the rear end surface of the tightening block 503 is provided with two limiting tooth blocks 504; the front end surface of the sliding block 502 is provided There are two spring guide rods 505 that penetrate the front side wall of the box body 501, and each spring guide rod 505 is sleeved with a spring on the outside of the box body 501; the upper end surface of the sliding block 502 is rotatably connected to a rotating rod 506 through a rotating shaft; a limit block 507 is set on the top of the box body 501; through the cooperation of the rotating rod 506 and the limit block 507, when it is necessary to loosen and remove the fixing bolt 4, there is no need to push the sliding block 502 outward by hand, thereby improving the practicality of the double-row tapered roller bearing.

[0040] When the anti-loosening mechanism 5 is in the anti-loosening state, the rear ends of the two limiting tooth blocks 504 are in close contact with the front side of the outer peripheral surface of the limiting gear 401, so that the fixing bolt 4 can be effectively prevented from loosening.

[0041] The working principle of this embodiment: During use, when the double-row tapered roller bearing needs to be repaired and disassembled, first rotate the rotating rod 506 upward by ninety degrees, then move the rotating rod 506 forward, thereby moving the sliding block 502, the tightening block 503 and the limiting tooth block 504 forward, so that the limiting tooth block 504 is separated from the front side of the outer peripheral surface of the limiting gear 401, and then the rotating rod 506 is clamped on the front side of the limiting block 507 to achieve limiting.

[0042] Then, by loosening the fixing bolt 4, the upper end surface of the fixing bolt 4 is in contact with the inner top end surface of the L-shaped limit block 304, so that the lower end of the fixing bolt 4 is separated from the threaded blind hole 101, so that the upper bearing seat 3 loses its limiting effect on the upper part of the lower bearing seat 1, and then the left end of the upper bearing seat 3 is rotated upward to open it, and then the double-row tapered roller bearing body 2 is taken out upward for maintenance.

[0043] When it is necessary to add lubricating oil to the outside of the roller 204, it is only necessary to loosen and remove the two sealing bolts 302, and then add the lubricating oil to the inside of the first threaded through hole 306, so that the lubricating oil flows to the inside of the two oil inlet holes 205 under the action of gravity, and finally flows to the outside of the roller 204, so that the roller 204 is effectively lubricated, and through the setting of the sealing bolt 302, the first threaded through hole 306 can be effectively protected to avoid the entry of dust, and through the setting of the connecting rope 303, the sealing bolt 302 can be prevented from being lost after being loosened.

[0044] In this article, there are a few points to note:

[0045] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0046] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0047] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. Low friction heavy load mechanical double row tapered roller bearing device, including: A lower bearing seat (1); a first arc-shaped groove (102) is provided on the inner side of the lower bearing seat (1), and a double-row tapered roller bearing body (2) is installed inside the first arc-shaped groove (102); the lower bearing seat (1) is characterized in that the upper right side of the lower bearing seat (1) is rotatably connected to the upper bearing seat (3) through a rotating shaft, and a fixing bolt (4) is movably inserted into the upper left side of the upper bearing seat (3); a threaded blind hole (101) is provided on the left side of the top of the lower bearing seat (1), and the threaded blind hole (101) is used for threaded connection with the fixing bolt (4); an anti-loosening mechanism (5) is provided on the upper end surface of the left side of the upper bearing seat (3); a strip-shaped positioning slot (103) is provided on the lower side of the first arc-shaped groove (102).

2. The low-friction heavy-load mechanical double-row tapered roller bearing device according to claim 1, characterized in that: The double-row tapered roller bearing body (2) comprises a bearing inner ring (201), a retaining frame (202), a bearing outer ring (203), rollers (204), an oil inlet hole (205) and a strip-shaped positioning insert (206); the bearing inner ring (201) is externally mounted with a retaining frame (202), and rollers (204) are rotatably connected to the retaining frame (202) in a ring array; the bearing outer ring (203) is externally mounted with the retaining frame (202) and the rollers (204), and two oil inlet holes (205) are provided on the upper side of the outer circumference of the bearing outer ring (203); and the bearing outer ring (203) is provided with a strip-shaped positioning insert (206) on the lower side of the outer circumference.

3. The low-friction heavy-load mechanical double-row tapered roller bearing device according to claim 2, characterized in that: When the double-row tapered roller bearing body (2) is installed inside the first arc-shaped groove (102), the strip-shaped positioning plug-in block (206) will be plugged into the strip-shaped positioning slot (103).

4. The low-friction heavy-load mechanical double-row tapered roller bearing device according to claim 1, characterized in that: Two threaded thickening blocks (301) are arranged on the top of the upper bearing seat (3), and a first threaded through hole (306) is provided on the top surface of each threaded thickening block (301); a second threaded through hole (307) is provided in the middle of the left upper end surface of the upper bearing seat (3).

5. The low-friction heavy-load mechanical double-row tapered roller bearing device according to claim 4, characterized in that: Each of the first threaded through holes (306) is threadedly connected to a sealing bolt (302), and a T-shaped connecting column is provided at the upper end of each sealing bolt (302), and a connecting rope (303) is sleeved on the outside of each T-shaped connecting column; the other ends of the two connecting ropes (303) are fixedly connected to the upper bearing seat (3); an L-shaped limiting block (304) is provided on the upper end surface on the left side of the upper bearing seat (3), and a second arc-shaped groove (305) is provided on the inner side of the upper bearing seat (3), and the second arc-shaped groove (305) is used to limit the double-row tapered roller bearing body (2).

6. The low-friction heavy-load mechanical double-row tapered roller bearing device according to claim 4, characterized in that: The upper end of the fixing bolt (4) is externally fixedly connected to the limiting gear (401), and when the upper bearing seat (3) is in a fixed state on the upper part of the lower bearing seat (1), the threaded blind hole (101) and the second threaded through hole (307) are both threadedly connected to the fixing bolt (4).

7. The low-friction heavy-load mechanical double-row tapered roller bearing device according to claim 6, characterized in that: The anti-loosening mechanism (5) comprises a box body (501), a sliding block (502), a tightening block (503), a limiting tooth block (504), a spring guide rod (505), a rotating rod (506) and a limiting block (507); the box body (501) is fixedly mounted on the left upper end surface of the lower bearing seat (1), and the sliding block (502) is slidably connected inside the box body (501); the rear end surface of the sliding block (502) is provided with a tightening block (503) penetrating the rear side wall of the box body (501). 503), and the rear end surface of the tightening block (503) is provided with two limiting tooth blocks (504); the front end surface of the sliding block (502) is provided with two spring guide rods (505) penetrating the front side wall of the box body (501), and the outside of each spring guide rod (505) is sleeved with a spring located inside the box body (501); the upper end surface of the sliding block (502) is rotatably connected to a rotating rod (506) via a rotating shaft; and a limiting block (507) is provided on the top of the box body (501).

8. The low-friction heavy-load mechanical double-row tapered roller bearing device according to claim 7, characterized in that: When the anti-loosening mechanism (5) is in the anti-loosening state, the rear ends of the two limiting tooth blocks (504) are in close contact with the front side of the outer peripheral surface of the limiting gear (401).

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