CN220726844U - Double-row angular contact ball bearing - Google Patents

Abstract

The utility model provides a double-row angular contact ball bearing, which comprises an outer ring, wherein two groups of closely attached inner rings are arranged in the outer ring, a control frame is arranged between the outer ring and the inner ring, two groups of balls are symmetrically arranged on the surface of the control frame in a circle center, the inner wall of the outer ring and the outer wall of the inner ring are both provided with moving grooves, the balls can slide along the moving grooves, the connecting rings are used for being inserted into screw rods under the action of the connecting rings and screw cylinders, the connecting rings are connected with the screw rods and are kept in rotation with the screw cylinders, after unlocking, the screw rods drive the rotating rings to rotate, compared with the prior art, the two groups of inner rings are fixedly matched with sealing plates through long screws to seal and protect the interval between the outer ring and the inner ring, dust entering is reduced, the rotating rings capable of being unlocked are matched with oil injection pipes and pass through the moving grooves to lubricate the surfaces of the balls and the control frame, the use efficiency of the bearing is improved, and abrasion is reduced.

Description

Double-row angular contact ball bearing

Technical Field

The utility model relates to the technical field of double-row angular contact ball bearings, in particular to a double-row angular contact ball bearing.

Background

The design of the double-row angular contact ball bearing is basically the same as that of a single-row angular contact ball bearing, but occupies smaller axial space, the double-row angular contact ball bearing can bear radial load and axial load acting in two directions, the double-row angular contact ball bearing can limit the bidirectional axial displacement of a shaft or a shell, and the contact angle is 30 degrees. A bearing arrangement with higher rigidity can be provided and the overturning moment can be borne;

the double-row angular contact ball bearing on the market mainly comprises an inner ring, balls, a stamping retainer and an outer ring, dust is easy to enter the ball layer when the double-row angular contact ball bearing is used for a long time, so that the friction coefficient of the bearing is affected, and the existing double-row angular contact ball bearing is inconvenient to detach after the installation is completed;

patent CN217130089U proposes a biserial angular contact ball bearing, two sets of inner circles pass through the screw fixation, easy to assemble and dismantlement, be equipped with the great baffle of radius in the outer end of inner circle, the installation clearance to the ball seals and keeps off, both played the purpose that protection ball reduces the dust entering, can realize convenient dismantlement and installation simultaneously, but in this technique, because biserial angular contact ball bearing is in order to guarantee lubricating property after using, usually need the people to pour into lubricating oil into the bearing ball inside, reduce the wearing and tearing of bearing, and the technique in the scheme because set up too to seal, lead to unable interpolation lubricating oil, can only dismantle the inner circle after adding, influence the normal use of bearing.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide the double-row angular contact ball bearing, so as to solve the problems in the background art.

In order to achieve the above object, the present utility model is realized by the following technical scheme: the utility model provides a biserial angular contact ball bearing, includes the outer lane, the inside inner circle that is equipped with two sets of laminating closely of outer lane, and is equipped with the control frame between outer lane and the inner circle, two sets of balls are installed to centre of a circle symmetry on the control frame surface, the movable groove has all been seted up to outer lane inner wall and inner circle outer wall, and the ball can follow the movable groove and slide.

Further, a rotating ring is arranged on the outer surface of the outer ring in a sealing and rotating mode, and the rotating ring covers the top of the moving groove of the outer ring.

Furthermore, the top of the rotating ring is fixedly provided with a connecting ring, the inside of the connecting ring is inserted with a screw rod, a screw cylinder is fixed on the surface of the outer side of the outer ring corresponding to the screw rod, and the screw rod in the connecting ring can be inserted in the screw cylinder in a meshed manner.

Furthermore, the top of the rotating ring is provided with an oil injection pipe, the inside of the rotating ring is provided with an oil way for connecting the oil injection pipe, and the inner wall of the rotating ring is provided with an oil injection port at the position corresponding to the two moving grooves.

Furthermore, the top of the oil filling pipe is in sealing connection with a sealing plug.

Further, a sealing plate is fixed on the outer side of the inner ring, the sealing plate corresponds to the control frame and two sides of the ball are shielded and sealed, and the inner ring penetrates out of the sealing plate.

Furthermore, four groups of long screws are symmetrically inserted on the outer surface of the sealing plate of the inner ring at one side of the inner ring at the inner side of the outer ring, screw holes are formed in the position, corresponding to the long screws, of the inner ring at the other side of the inner ring at the inner side of the outer ring, and the two groups of the inner rings are fixed through the long screws and the screw holes.

The utility model has the beneficial effects that: the utility model relates to a double-row angular contact ball bearing, which comprises an outer ring; a moving groove; an oil filling port; a rotating ring; a connecting ring; a screw cylinder; a filler pipe; a sealing plug; an inner ring; a screw hole; a long screw; a sealing plate; a ball; a control rack;

1. this biserial angular contact ball bearing carries out surrounding type oiling through rotation ring and filler pipe's effect to the inside ball of removal groove and control frame, improves the oiling effect.

2. Under the action of the connecting ring and the screw cylinder, the connecting ring is used for being inserted into the screw rod, the connecting ring and the rotating ring are kept to be integrated through connection of the screw rod and the screw cylinder, and after unlocking, the rotating ring is driven to rotate through the screw rod.

3. The sealing plates on two sides of the inner ring of the double-row angular contact ball bearing seal two sides of the mounting gap between the ball and the control frame, so that dust entering and leakage of lubricating oil are reduced.

4. This biserial angular contact ball bearing is for prior art, two sets of inner circles seal the protection to outer lane and inner circle interval department through long screw fixation cooperation shrouding, reduce the dust and get into, but through the rotation ring of outer lane top unblock, cooperation oil pipe, pass and remove groove rotation type and lubricate ball and control frame on the surface, improve the availability factor of bearing, reduce wearing and tearing.

Drawings

FIG. 1 is a schematic view showing the overall front structure of a double row angular contact ball bearing according to the present utility model;

FIG. 2 is a schematic view showing the structural disassembly of a double row angular contact ball bearing according to the present utility model;

FIG. 3 is a schematic view showing the structure of the inner surface of an outer ring of a double row angular contact ball bearing according to the present utility model;

FIG. 4 is a schematic view of the outer surface structure of an outer ring of a double row angular contact ball bearing according to the present utility model;

in the figure: 1. an outer ring; 11. a moving groove; 12. an oil filling port; 13. a rotating ring; 14. a connecting ring; 15. a screw cylinder; 16. a filler pipe; 17. a sealing plug; 2. an inner ring; 21. a screw hole; 22. a long screw; 3. a sealing plate; 4. a ball; 5. and a control frame.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

Referring to fig. 1 to 4, the present utility model provides a technical solution: the utility model provides a biserial angular contact ball bearing, includes outer lane 1, the inside inner circle 2 that is equipped with two sets of laminating closely of outer lane 1, and is equipped with control frame 5 between outer lane 1 and the inner circle 2, two sets of balls 4 are installed to centre of a circle symmetry on the control frame 5 surface, 1 inner wall of outer lane and inner circle 2 outer wall all have been seted up and have been removed groove 11, and ball 4 can follow and remove groove 11 and slide, during the device, with two sets of inner circles 2 installation, inner circle 2, outer lane 1, control frame 5 and ball 4 are installed in proper order, and ball 4 both sides slide inside removing groove 11, constitute a complete biserial angular contact ball bearing.

In this embodiment, the rotating ring 13 is installed on the outer surface of the outer ring 1 in a sealing and rotating manner, the rotating ring 13 covers the top of the moving groove 11 of the outer ring 1, the connecting ring 14 is fixed at the top of the rotating ring 13, a screw is inserted in the connecting ring 14, a screw cylinder 15 is fixed on the surface of the outer side of the outer ring 1 corresponding to the screw, the screw in the connecting ring 14 can be inserted in the screw cylinder 15 in a meshing manner, an oil injection pipe 16 is provided at the top of the rotating ring 13, an oil injection port 12 is provided at the position of the inner wall of the rotating ring 13 corresponding to the two moving grooves 11, the top of the oil injection pipe 16 is inserted in a sealing plug 17 in a sealing manner, when oil injection is not needed, the connecting ring 14 and the screw cylinder 15 are meshed and locked through the screw, the connecting ring 14 and the rotating ring 13 are kept integral, when oil injection is performed, the sealing plug 17 is removed, the screw is rotated outwards to be separated from the screw cylinder 15, then lubricating oil is added into the inner part of the oil pipe 16, the lubricating oil enters the moving groove 11 from the inner part through the oil injection port 12, and the oil injection port 12 along with the manual rotating ring 13, the control frame 5 and the rolling balls 4 are subjected to encircling oiling and oiling efficiency is improved.

In this embodiment, the outer side of the inner ring 2 is fixed with the sealing plate 3, and the sealing plate 3 corresponds to both sides of the control frame 5 and the ball 4 and shields and seal, the inner ring 2 wears out the sealing plate 3, four groups of long screws 22 are symmetrically inserted in the circle center on the outer surface of the sealing plate 3 of the inner ring 2 on one side of the inner ring 1, and the positions of the inner ring 2 on the other side of the inner ring 1 corresponding to the long screws 22 are provided with screw holes 21, two groups of the inner rings 2 are fixed through the long screws 22 and the screw holes 21, the two groups of the inner rings 2 are assembled through the meshing of the long screws 22 and the screw holes 21, so that a complete inner ring 2 body is formed, the sealing plates 3 on both sides of the inner ring 2 seal both sides of the ball 4 and the control frame 5, and dust entering and lubricating oil leakage are reduced.

When the device is used, the inner ring 2 of the group is assembled through the engagement of the long screw 22 and the screw hole 21 to form a complete inner ring 2 body, the sealing plates 3 on two sides of the inner ring 2 seal two sides of the installation gap between the balls 4 and the control frame 5, dust entering and leakage of lubricating oil are reduced, the inner ring 2, the outer ring 1, the control frame 5 and the balls 4 are sequentially installed, two sides of the balls 4 slide in the moving groove 11 to form a complete double-row angular contact ball bearing, when oiling is not needed, the connecting ring 14 and the screw barrel 15 are engaged and locked through the screw rod, the connecting ring 14 and the rotating ring 13 are kept to be integrated, when oiling is carried out, the sealing plug 17 is removed, the screw rod is outwards rotated to be separated from the screw barrel 15, then lubricating oil is added into the oil injection pipe 16, the lubricating oil passes through the oil path to enter the moving groove 11 from the oil injection port 12, and the rotating ring 13 is manually rotated to carry out surrounding oiling on the control frame 5 and the balls 4, and oiling efficiency is improved (the sliding clamping of the rotating ring 13 and the outer ring 1 is in the sliding mode of the existing sealing slide block and sliding groove).

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (5)

1. Double-row angular contact ball bearing, including outer lane (1), its characterized in that: the novel oil filling machine is characterized in that two groups of closely attached inner rings (2) are arranged inside the outer ring (1), a control frame (5) is arranged between the outer ring (1) and the inner ring (2), two groups of balls (4) are symmetrically arranged on the surface of the control frame (5) in the center of a circle, the inner wall of the outer ring (1) and the outer wall of the inner ring (2) are provided with movable grooves (11), the balls (4) can slide along the movable grooves (11), the outer surface of the outer ring (1) is provided with a rotating ring (13) in a sealing rotating manner, the rotating ring (13) covers the top of the movable grooves (11) of the outer ring (1), the top of the rotating ring (13) is provided with an oil injection pipe (16), the inner wall of the rotating ring (13) is provided with an oil way for connecting the oil injection pipe (16), and the positions of the inner wall of the rotating ring (13) corresponding to the two movable grooves (11) are provided with an oil injection port (12).

2. A double row angular contact ball bearing according to claim 1, wherein: the top of the rotating ring (13) is fixedly provided with a connecting ring (14), a screw rod is inserted into the connecting ring (14), a screw cylinder (15) is fixed on the surface of the outer side of the outer ring (1) corresponding to the screw rod, and the screw rod in the connecting ring (14) can be inserted into the screw cylinder (15) in a meshed mode.

3. A double row angular contact ball bearing according to claim 1, wherein: a sealing plug (17) is inserted into the top of the oil filling pipe (16) in a sealing way.

4. A double row angular contact ball bearing according to claim 1, wherein: the sealing plate (3) is fixed on the outer side of the inner ring (2), the sealing plate (3) is sealed by shielding corresponding to the two sides of the control frame (5) and the balls (4), and the inner ring (2) penetrates out of the sealing plate (3).

5. The double row angular contact ball bearing of claim 4 wherein: four groups of long screws (22) are symmetrically inserted on the outer surface of a sealing plate (3) of an inner ring (2) at one side of the inner part of the outer ring (1), screw holes (21) are formed in positions, corresponding to the long screws (22), of the inner ring (2) at the other side of the inner part of the outer ring (1), and the two groups of the inner rings (2) are fixed through the long screws (22) and the screw holes (21).