A phosphating prevention device for the outer spherical surface of the inner ring of a spherical bearing

Abstract

The present invention discloses an anti-phosphating device for the outer spherical surface of the inner ring of a joint bearing. The device can protect the inner ring of the joint bearing from phosphating as a whole by wrapping it in all directions, and can seal and isolate the outer spherical surface of the inner ring of the joint bearing. The device is characterized in that the upper protective sleeve is a semi-spherical structure, and the two sides of the upper protective sleeve are symmetrically cut in a vertical direction along the bottom surface of the semi-spherical structure to form two symmetrical semi-circular notches on both sides of the upper protective sleeve. At least four fixing ears are provided on the upper protective sleeve, and the cross-section of the fixing ears is parallel to the bottom surface of the semi-spherical structure. The outer edge of the semi-circular notch of the upper protective sleeve is wrapped with a sealing ring, and the inner side of the edge of the bottom surface of the upper protective sleeve is recessed to form a card platform, and a clamping sealing block is provided on the card platform. There is no gap between the bottom of the clamping sealing block and the inner side of the card platform, and the top of the clamping sealing block is slightly higher than the bottom surface of the semi-spherical structure.

Description

Technical Field

[0001] The present invention discloses a phosphating prevention device for the outer spherical surface of the inner ring of a spherical joint bearing, which belongs to the technical field of bearing manufacturing, and particularly relates to a phosphating prevention device that can prevent the phosphating of the outer spherical surface of the inner ring of a spherical joint bearing by wrapping the inner ring of the spherical joint bearing in all directions, thereby preventing the inner ring of the spherical joint bearing from being phosphated as a whole, and can provide a sealing and isolating effect on the outer spherical surface of the inner ring of the spherical joint bearing. Background Art

[0002] A spherical plain bearing has an inner spherical surface and an outer spherical surface in contact with each other, and can rotate and swing at any angle during movement. In order to enhance the structural strength of the spherical plain bearing, it is usually subjected to phosphating reaction. However, for some spherical plain bearings with high precision requirements, in order to ensure the accuracy of joint matching, it is necessary to prevent the inner spherical surface and the outer spherical surface of the spherical plain bearing from being phosphated when in contact and sliding with each other. It is often necessary to grind the outer spherical surface of the inner ring of the spherical plain bearing after overall phosphating, which is time-consuming and labor-intensive. At the same time, it is easy to cause over-grinding during grinding, which affects the matching accuracy of the inner ring of the spherical plain bearing. Existing anti-phosphating devices for bearings are mostly used for roller bearings such as tapered bearings. They cannot provide good sealing protection for the matching spherical surface of the spherical plain bearing and are difficult to apply.

[0003] Announcement No. CN207672125U discloses a device for preventing phosphating of the inner ring raceway of a tapered bearing, comprising a rubber sleeve, a pressure block, a pressure ring and a locking ring; the rubber sleeve is arranged on the raceway and the rib of the outer diameter of the inner ring of the bearing, the pressure block is arranged on the raceway of the inner ring of the bearing and matches the shape of the raceway, the locking ring is arranged on the small rib of the inner ring of the bearing, the locking ring contacts the pressure block, the pressure ring is arranged on the side of the locking ring away from the pressure block, the pressure ring and the pressure block are connected by bolts and axially fixed, the anti-phosphating device cannot wrap and protect the spherical surface in all directions, and cannot be effectively applied to the inner ring of the spherical bearing. Summary of the invention

[0004] In order to improve the above situation, the present invention provides an anti-phosphating device for the outer spherical surface of the inner ring of a spherical joint bearing, which provides an anti-phosphating device by all-round wrapping and protection of the inner ring of the spherical joint bearing to prevent it from being phosphated as a whole, and can seal and isolate the outer spherical surface of the inner ring of the spherical joint bearing.

[0005] The anti-phosphating device for the outer spherical surface of the inner ring of a spherical joint bearing of the present invention is realized as follows: the anti-phosphating device for the outer spherical surface of the inner ring of a spherical joint bearing of the present invention is composed of an upper protective sleeve, a sealing ring, a fastening bolt, a fixing ear, a lower protective sleeve, a sealing gasket, a snap-fit ​​top block, a snap-fit ​​platform and a snap-fit ​​sealing block. The upper protective sleeve is a semi-spherical structure. The two sides of the upper protective sleeve are symmetrically cut in a vertical direction along the bottom surface of the semi-spherical structure to form two symmetrical semi-circular notches on both sides of the upper protective sleeve. At least 4 fixing ears are arranged on the upper protective sleeve. The cross section of the fixing ears is parallel to the bottom surface of the semi-spherical structure. The outer edge of the semi-circular notch of the upper protective sleeve is wrapped with a sealing ring. The inner side of the edge of the bottom surface of the upper protective sleeve is recessed to form a snap-fit ​​platform. A snap-fit ​​sealing block is arranged on the snap-fit ​​platform. There is no gap between the bottom of the snap-fit ​​sealing block and the inner side surface of the snap-fit ​​platform. The top of the snap-fit ​​sealing block is slightly higher than the bottom surface of the semi-spherical structure, and there is a gap between the bottom of the snap-fit ​​sealing block on the card platform and the inner wall of the semi-spherical structure for placing a sealing gasket. The lower protective sleeve is a semi-spherical structure, and the two sides of the lower protective sleeve are symmetrically cut in the vertical direction of the upper surface of the semi-spherical structure to form two symmetrical semi-circular notches on both sides of the lower protective sleeve. The lower protective sleeve is provided with at least 4 fixing ears corresponding to the upper protective sleeve, and the fixing ears are fixed by fastening bolts. The cross-section of the fixing ears is parallel to the upper surface of the semi-spherical structure. The outer edge of the semi-circular notch of the lower protective sleeve is wrapped with a sealing ring, and the inner side of the edge of the upper surface of the lower protective sleeve is recessed to form a snap-fit ​​platform, and the snap-fit ​​platform corresponds to the card platform, and the snap-fit ​​platform is provided with a card The top block has a gap between the bottom of the top block and the inner side of the card platform, the distance from the bottom of the top block to the inner side of the card platform is smaller than the distance from the top of the top block to the inner side of the card platform, the top of the top block is slightly higher than the upper surface of the semi-spherical structure, and there is a gap for the sealing gasket to be placed from the bottom of the top block on the card platform to the inner wall of the semi-spherical structure, the inner ring body of the spherical bearing is engaged between the upper protective sleeve and the lower protective sleeve, the card platform on the upper protective sleeve and the engaging platform on the lower protective sleeve are engaged with each other, the sealing gasket is engaged between the card platform and the engaging platform, the engaging sealing block on the card platform is engaged in the gap between the bottom of the top block and the inner side of the card platform, the engaging sealing block is made of elastic material, and the engaging top block is made of elastic material.

[0006] Beneficial effects.

[0007] 1. It can provide all-round wrapping protection for the outer spherical surface of the inner ring of the spherical plain bearing to prevent it from being phosphated as a whole.

[0008] 2. The sealing and isolation effect is good.

[0009] 3. Simple operation and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A three-dimensional structural diagram of a phosphating prevention device for the outer spherical surface of an inner ring of a spherical joint bearing according to the present invention.

[0011] Figure 2 A three-dimensional exploded view of a phosphating prevention device for the outer spherical surface of an inner ring of a spherical joint bearing according to the present invention.

[0012] Figure 3 A schematic structural diagram of a phosphating prevention device for the outer spherical surface of an inner ring of a spherical joint bearing according to the present invention.

[0013] In the attached figure

[0014] The components include: an upper protective sleeve (1), a sealing ring (2), a fastening bolt (3), a fixing ear (4), a lower protective sleeve (5), an inner ring of a spherical bearing (6), a sealing gasket (7), a snap-fit ​​top block (8), a snap-fit ​​platform (9), and a snap-fit ​​sealing block (10). DETAILED DESCRIPTION

[0015] The present invention provides an anti-phosphating device for the outer spherical surface of the inner ring of a spherical joint bearing, which is realized as follows: The present invention provides an anti-phosphating device for the outer spherical surface of the inner ring of a spherical joint bearing, which comprises an upper protective sleeve (1), a sealing ring (2), a fastening bolt (3), a fixing ear (4), a lower protective sleeve (5), a sealing gasket (7), a snap-fit ​​top block (8), a snap-fit ​​platform (9) and a snap-fit ​​sealing block (10), wherein the upper protective sleeve (1) is a semi-spherical structure, and the two sides of the upper protective sleeve (1) are symmetrically cut along the vertical direction of the bottom surface of the semi-spherical structure to form two symmetrical semi-circular notches on the two sides of the upper protective sleeve (1), and at least four fixing ears (4) are arranged on the upper protective sleeve (1), and the cross section of the fixing ears (4) is parallel to the bottom surface of the semi-spherical structure, and the outer edge of the semi-circular notch of the upper protective sleeve (1) is wrapped with a sealing ring (2), and the inner side of the bottom edge of the upper protective sleeve (1) is recessed to form a snap-fit ​​platform, and a snap-fit ​​sealing block (10) is arranged on the snap-fit ​​platform, and there is no gap between the bottom of the snap-fit ​​sealing block (10) and the inner side surface of the snap-fit ​​platform, The top of the snap-fit ​​sealing block (10) is slightly higher than the bottom surface of the semi-spherical structure. There is a gap between the bottom of the snap-fit ​​sealing block (10) on the clamping platform and the inner wall of the semi-spherical structure for placing a sealing gasket. The lower protective sleeve (5) is a semi-spherical structure. The two sides of the lower protective sleeve (5) are symmetrically cut along the vertical direction of the upper surface of the semi-spherical structure to form two symmetrical semi-circular notches on the two sides of the lower protective sleeve (5). The lower protective sleeve (5) is provided with at least four fixing ears (4) corresponding to the upper protective sleeve (1). The fixing ears (4) are fixed by fastening bolts (3). The cross section of the fixing ears (4) is parallel to the upper surface of the semi-spherical structure. The outer edge of the semi-circular notch of the lower protective sleeve (5) is wrapped with a sealing ring (2). The inner side of the upper surface edge of the lower protective sleeve (5) is recessed to form a snap-fit ​​platform (9). The snap-fit ​​platform (9) corresponds to the clamping platform. The snap-fit ​​platform (9) is provided with a snap-fit ​​top. The top block (8) has a gap between the bottom of the engaging top block (8) and the inner side of the card platform, the distance between the bottom of the engaging top block (8) and the inner side of the card platform is smaller than the distance between the top of the engaging top block (8) and the inner side of the card platform, the top of the engaging top block (8) is slightly higher than the upper surface of the semi-spherical structure, and there is a gap between the bottom of the engaging top block (8) on the card platform and the inner wall of the semi-spherical structure for placing a sealing gasket, the inner ring body (6) of the spherical bearing is engaged between the upper protective sleeve (1) and the lower protective sleeve (5), the card platform on the upper protective sleeve (1) and the engaging platform (9) on the lower protective sleeve (5) are engaged with each other, the sealing gasket (7) is engaged between the card platform and the engaging platform (9), the engaging sealing block (10) on the card platform is engaged in the gap between the bottom of the engaging top block (8) and the inner side of the card platform, the engaging sealing block (10) is made of elastic material, and the engaging top block (8) is made of elastic material;

[0016] When in use, first place the inner ring of the joint bearing in the ring body of the auxiliary protective sleeve, then engage the two sealing gaskets (7) between the clamping platform and the clamping platform (9), at which time the sealing gasket (7) is between the clamping top block (8) and the outer spherical surface of the inner ring of the joint bearing, then use the upper protective sleeve (1) to cover the lower protective sleeve (5) to cover the inner ring of the joint bearing, and lock it by tightening the bolts (3). During the covering and locking process, the clamping sealing block (10) on the clamping platform is clamped in the gap between the bottom of the clamping top block (8) and the inner side of the clamping platform. As the clamping top block (8) and the clamping sealing block (10) are inserted, the sealing gasket (7) is squeezed toward the connection between the upper protective sleeve (1) and the lower protective sleeve (5), so that the sealing gasket (7) is tightly supported on the outer spherical surface of the inner ring of the joint bearing for sealing;

[0017] The design of the outer edge of the semicircular notch of the upper protective sleeve (1) being wrapped with a sealing ring (2) can prevent the inner ring body (6) of the spherical bearing from colliding with the semicircular notch of the upper protective sleeve (1) during use, thereby preventing damage and affecting the matching accuracy of the inner ring of the spherical bearing;

[0018] The outer edge of the semicircular notch of the lower protective sleeve (5) is wrapped with a sealing ring (2), which can prevent the inner ring body (6) of the spherical bearing from colliding with the semicircular notch of the lower protective sleeve (5) during use and causing damage, thereby affecting the matching accuracy of the inner ring of the spherical bearing;

[0019] The top of the snap-fit ​​sealing block (10) is slightly higher than the bottom surface of the semi-spherical structure, and the top of the snap-fit ​​top block (8) is slightly higher than the upper surface of the semi-spherical structure. When the upper protective sleeve (1) and the lower protective sleeve (5) are closed and connected, the snap-fit ​​sealing block (10) is pressed tightly to achieve a sealing effect.

[0020] The design of the spherical bearing inner ring body (6) being engaged between the upper protective sleeve (1) and the lower protective sleeve (5) can provide all-round wrapping protection for the outer spherical surface of the spherical bearing inner ring, and the upper protective sleeve (1) and the lower protective sleeve (5) are more closely fitted, thereby enhancing the sealing protection effect of the spherical bearing inner ring;

[0021] The corresponding engagement design of the engagement platform on the upper protective sleeve (1) and the engagement platform (9) on the lower protective sleeve (5) enables the upper protective sleeve (1) and the lower protective sleeve (5) to be more tightly covered, thereby enhancing the seal and providing protection for the inner ring of the spherical bearing;

[0022] The design of the sealing gasket (7) being clamped between the clamping platform and the clamping platform (9) can make the upper and lower protective sleeves (5) and the inner ring of the spherical bearing fit more closely, further enhancing the sealing effect;

[0023] The snap-fit ​​sealing block (10) is made of an elastic material, and the snap-fit ​​top block (8) is made of an elastic material, so that when the upper protective sleeve (1) and the lower protective sleeve (5) are snap-fitted and connected, the outer spherical surface of the inner ring of the spherical bearing can be more closely fitted, thereby providing sealing protection for the outer spherical surface of the inner ring body (6) of the spherical bearing;

[0024] The purpose is to achieve all-round wrapping and protection of the inner ring of the spherical bearing to prevent it from being phosphated as a whole, and to achieve a sealing and isolation effect on the outer spherical surface of the inner ring around the joint.

Claims

1. A phosphating prevention device for the outer spherical surface of the inner ring of a spherical plain bearing, characterized by: The invention comprises an upper protective sleeve, a sealing ring, a fastening bolt, a fixing ear, a lower protective sleeve, a sealing gasket, a locking top block, a locking platform and a locking sealing block. The upper protective sleeve is a semi-spherical structure, and the two sides of the upper protective sleeve are symmetrically cut in a vertical direction along the bottom surface of the semi-spherical structure to form two symmetrical semi-circular notches on both sides of the upper protective sleeve. At least 4 fixing ears are arranged on the upper protective sleeve, and the cross-section of the fixing ears is parallel to the bottom surface of the semi-spherical structure. The outer edge of the semi-circular notch of the upper protective sleeve is wrapped with a sealing ring, and the inner side of the edge of the bottom surface of the upper protective sleeve is recessed to form a locking platform. A locking sealing block is arranged on the locking platform, and there is no gap between the bottom of the locking sealing block and the inner side of the locking platform. The top of the locking sealing block is slightly higher than the bottom surface of the semi-spherical structure, and there is a gap from the bottom of the locking sealing block on the locking platform to the inner wall of the semi-spherical structure for placing the sealing gasket. The lower protective sleeve is a semi-spherical structure, and the two sides of the lower protective sleeve are symmetrically cut in a vertical direction along the upper surface of the semi-spherical structure to form two symmetrical semi-circular notches on both sides of the lower protective sleeve. At least 4 fixing ears corresponding to the upper protective sleeve are provided, the fixing ears are fixed by fastening bolts, the cross section of the fixing ears is parallel to the upper surface of the semi-spherical structure, the outer edge of the semi-circular notch of the lower protective sleeve is wrapped with a sealing ring, the inner side of the edge of the upper surface of the lower protective sleeve is recessed to form a snap-fit ​​platform, the snap-fit ​​platform corresponds to the snap-fit ​​platform, a snap-fit ​​top block is provided on the snap-fit ​​platform, a gap is provided between the bottom of the snap-fit ​​top block and the inner side of the snap-fit ​​platform, the distance from the bottom of the snap-fit ​​top block to the inner side of the snap-fit ​​platform is smaller than the distance from the top of the snap-fit ​​top block to the inner side of the snap-fit ​​platform, the top of the snap-fit ​​top block is slightly higher than the upper surface of the semi-spherical structure, there is a gap for placing a sealing gasket from the bottom of the snap-fit ​​top block on the snap-fit ​​platform to the inner wall of the semi-spherical structure, the inner ring body of the spherical bearing is snapped between the upper protective sleeve and the lower protective sleeve, the snap-fit ​​platform on the upper protective sleeve is snapped with the snap-fit ​​platform on the lower protective sleeve, the sealing gasket is snapped between the snap-fit ​​platform and the snap-fit ​​platform, and the snap-fit ​​sealing block on the snap-fit ​​platform is snapped in the gap between the bottom of the snap-fit ​​top block and the inner side of the snap-fit ​​platform.

2. The anti-phosphating device for the outer spherical surface of the inner ring of a spherical plain bearing according to claim 1, characterized in that The distance from the bottom of the engaging top block to the inner side of the card platform is smaller than the distance from the top of the engaging top block to the inner side of the card platform.

3. The anti-phosphating device for the outer spherical surface of the inner ring of a spherical plain bearing according to claim 2 is characterized in that The top of the engaging top block is slightly higher than the upper surface of the semi-spherical structure.

4. The anti-phosphating device for the outer spherical surface of the inner ring of a spherical plain bearing according to claim 1, characterized in that The top of the locking sealing block is slightly higher than the bottom surface of the semi-spherical structure.

5. The anti-phosphating device for the outer spherical surface of the inner ring of a spherical plain bearing according to claim 4, characterized in that The clamping sealing block is made of elastic material.

6. The anti-phosphating device for the outer spherical surface of the inner ring of a spherical plain bearing according to claim 3, characterized in that The engaging top block is made of elastic material.

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