A bearing housing sealing device

Abstract

This utility model discloses a bearing housing sealing device, relating to the field of bearing housing technology. It includes a bearing housing body and a positioning seat. End caps are fitted at both the front and rear ends of the bearing housing body. A locking ring, sliding within the bearing housing body, is fixed to the end face of each end cap. An annular groove is formed at the end of the locking ring furthest from the end cap, and two sets of second-step arc plates are fitted within the groove. An abutment ring, sliding within the bearing housing body, is provided on the end face of the locking ring. This utility model applies an external force to the end caps near the bearing housing body through the locking rings, ensuring the end caps are securely and easily fixed to the end face of the bearing housing body, thus sealing the assembled bearing. Simultaneously, the abutment ring abuts against the bearing in a central position within the bearing housing, effectively preventing bearing wobbling. Furthermore, the position of the abutment ring can be adjusted according to the thickness of the bearing, making the bearing housing widely applicable.

Description

Technical Field

[0001] This utility model relates to the field of bearing housing technology, specifically a bearing housing sealing device. Background Technology

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support rotating mechanical parts, reduce the coefficient of friction during their movement, and ensure their rotational accuracy. Compared to large machinery, bearings are very small components, but they play a crucial role. Bearing housings are commonly used parts in mechanical equipment, and the quality of the bearing housings is related to whether the equipment can operate normally.

[0003] Currently, after the bearing is placed in the bearing housing, end caps need to be installed on both the front and rear end faces to constrain the bearing and prevent external dust from entering and affecting the rotation of the bearing. However, since the space inside the bearing housing is fixed, it cannot accommodate bearings of different thicknesses. At the same time, the end caps and bearing housing are fixed with bolts, making it inconvenient to disassemble and replace the bearing. Therefore, a bearing housing sealing device is proposed. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a bearing housing sealing device to solve the technical problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bearing housing sealing device, comprising a bearing housing body and a positioning seat, wherein end caps are fitted at both the front and rear ends of the bearing housing body, and a locking ring that slides within the bearing housing body is fixed to the end face of each set of end caps;

[0006] The locking ring has an annular groove at one end away from the end cap, and two sets of second-step arc plates are fitted in the annular groove. The end face of the locking ring has a stop ring that slides in the bearing seat body. The end face of the stop ring is fixed with a first-step arc plate that matches the second-step arc plate. The outer curved wall of the locking ring has a conical annular groove, and the outer wall of the bearing seat body is fitted with two sets of locking arc plates that abut against the inclined surface of the conical annular groove.

[0007] As a preferred technical solution, each set of locking arc pieces includes two sets of L-shaped semi-arc pieces sleeved on the outer wall of the bearing housing body and extending to the end face of the end cap. The two sets of L-shaped semi-arc pieces form a locking ring, and three sets of locking arc blocks that abut against the inclined surface of the conical ring groove are fixed on the inner wall of each set of L-shaped semi-arc pieces.

[0008] As a preferred technical solution, a clearance ring groove is provided at the contact position between the outer wall of the bearing housing body and the L-shaped semi-arc plate, and a slot is provided at the contact position between the clearance ring groove and the locking arc block. Each set of clearance ring grooves is provided with an elastic element that constrains the locking arc block.

[0009] As a preferred technical solution, a positioning ring groove is reserved at the position where the end face of the end cap contacts the L-shaped semi-arc piece, and the L-shaped semi-arc piece fixes the end cap to the end face of the bearing seat body through the positioning ring groove.

[0010] As a preferred technical solution, the end face of the locking ring is fixed with four sets of telescopic rods connected to the conical ring groove, and the end face of the locking ring is provided with blind holes for installing the telescopic rods.

[0011] As a preferred technical solution, the positioning seat is fixed to the curved outer wall of the bearing housing body, and a threaded hole is provided at the top of the positioning seat near the edge.

[0012] As a preferred technical solution, the telescopic rod is equipped with a telescopic spring for automatic return of the telescopic rod.

[0013] In summary, the present invention has the following main advantages:

[0014] This invention applies an external force to the end cap near the bearing housing body by using a locking ring, which securely and conveniently fixes the end cap to the end face of the bearing housing body, thus sealing the assembled bearing. At the same time, the abutment ring abuts against the bearing in the center of the bearing housing, effectively preventing the bearing from shaking. Furthermore, the position of the abutment ring can be adjusted according to the thickness of the bearing, making the bearing housing widely applicable. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is an unfolded structural diagram of the bearing housing body and end cap of this utility model;

[0017] Figure 3 This is a schematic diagram of the end cap and L-shaped semi-arc plate structure of this utility model;

[0018] Figure 4 This is a first-view view of the unfolded locking ring of this utility model;

[0019] Figure 5 This is a second-view view of the unfolded locking ring of this utility model;

[0020] Figure 6 This is a cross-sectional view of the bearing housing body of this utility model.

[0021] In the diagram: 100, bearing housing body; 101, clearance ring groove; 102, groove opening; 103, elastic element; 110, positioning seat; 120, end cap; 121, positioning ring groove; 130, locking ring; 131, conical ring groove; 132, first stepped arc plate; 133, abutment ring; 134, telescopic rod; 135, second stepped arc plate; 136, ring groove; 140, L-shaped semi-arc plate; 141, locking arc block. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] The embodiments of this utility model will be described below based on its overall structure.

[0024] A bearing housing sealing device, such as Figures 1 to 6 As shown, the bearing housing body 100 and the positioning seat 110 are included. The front and rear ends of the bearing housing body 100 are equipped with end caps 120. Each end cap 120 has a locking ring 130 that slides inside the bearing housing body 100 fixed on its end face.

[0025] The locking ring 130 has an annular groove 136 at one end away from the end cover 120. Two sets of second stepped arc plates 135 are installed in the annular groove 136. The end face of the locking ring 130 has a stop ring 133 that slides in the bearing seat body 100. The end face of the stop ring 133 is fixed with a first stepped arc plate 132 that matches the second stepped arc plate 135. The curved outer wall of the locking ring 130 has a conical annular groove 131. The outer wall of the bearing seat body 100 is fitted with two sets of locking arc plates that abut against the inclined surface of the conical annular groove 131.

[0026] Each set of locking arc pieces includes two sets of L-shaped semi-arc pieces 140 that are sleeved on the outer wall of the bearing housing body 100 and extend to the end face of the end cover 120. The two sets of L-shaped semi-arc pieces 140 form a locking ring. Each set of L-shaped semi-arc pieces 140 has three sets of locking arc blocks 141 fixed on the inner wall of ...

[0027] The outer wall of the bearing housing body 100 is provided with a relief ring groove 101 at the contact position with the L-shaped semi-arc piece 140. The relief ring groove 101 is provided with a slot 102 at the contact position with the locking arc block 141. Each set of relief ring grooves 101 is provided with an elastic element 103 that constrains the locking arc block 141.

[0028] During bearing installation, the bearing is fitted onto the outer wall of the shaft and placed inside the bearing housing body 100. Two sets of end caps 120 are then fitted against the ends of the bearing housing body 100, and the locking ring 130 extends into the bearing housing body 100. At this time, two sets of abutment rings 133 abut against both ends of the bearing, positioning the bearing in the center within the bearing housing body 100. Then, L-shaped semi-arc pieces 140 are fitted into the relief ring groove 101, and their locking arc blocks 141 extend into the groove opening 102. At this point, the locking arc blocks 141 will... The compression elastic element 103 deforms and passes through it, while the locking arc block 141 compresses the inclined surface of the conical ring groove 131, generating an external force on the end cover 120 and the locking ring 130 towards the inner center of the bearing housing body 100, so that the end cover 120 is in tight contact with the end face of the bearing housing body 100 (a sealing ring can be added between the end cover 120 and the end face of the bearing housing body 100), and the L-shaped semi-arc piece 140 will wrap around the outer edge of the end cover 120 and be fixedly connected to the bearing housing body 100, thereby achieving a better sealing effect;

[0029] When the thickness of the bearing to be replaced changes, the end cap 120 needs to be removed and an external force is applied to the abutment ring 133 to create a gap between the abutment ring 133 and the end face of the locking ring 130. At the same time, an external force is applied to the second stepped arc plate 135 to rotate it in the ring groove 136 and change its position with the first stepped arc plate 132, resulting in a misalignment. At this time, the thickness of the two sets of first stepped arc plates 132 and second stepped arc plates 135 when they come into contact changes, which increases the distance between the end faces of the two sets of abutment rings 133 and the locking ring 130, and reduces the space formed by the two sets of abutment rings 133 in the bearing housing body 100. This allows the bearing housing to accommodate bearings of various thicknesses and makes it more widely applicable.

[0030] Please refer to this carefully. Figure 2 and Figure 3 A positioning ring groove 121 is reserved at the position where the end face of the end cover 120 contacts the L-shaped semi-arc piece 140. The L-shaped semi-arc piece 140 fixes the end cover 120 to the end face of the bearing housing body 100 through the positioning ring groove 121.

[0031] The L-shaped semi-arc plate 140 is used to constrain the positioning ring groove 121, so that the end cover 120 can be firmly placed on the end face of the bearing housing body 100, thereby achieving a sealing effect on the bearing installed inside.

[0032] Please refer to this carefully. Figure 5 The end face of the locking ring 130 is fixed with four sets of telescopic rods 134 connected to the conical ring groove 131, and the end face of the locking ring 130 is provided with blind holes for installing the telescopic rods 134.

[0033] The telescopic rod 134 is equipped with a telescopic spring for automatic return of the telescopic rod 134.

[0034] Utilizing the self-recovering property of the telescopic rod 134, the abutment ring 133 is firmly attached to the end face of the locking ring 130, and in conjunction with the trapezoidal arc plate, it can accommodate bearings of different thicknesses within the bearing housing body 100.

[0035] Please refer to this carefully. Figure 1 The positioning seat 110 is fixed to the curved outer wall of the bearing housing body 100, and the top of the positioning seat 110 is provided with a threaded hole near the edge.

[0036] By screwing the helix into the threaded hole, the bearing housing body 100 can be fixed through the positioning seat 110, which can stably support the shaft.

[0037] During use, when installing the bearing, the bearing is fitted onto the outer wall of the shaft and placed inside the bearing housing body 100. The two sets of end caps 120 are then fitted against the ends of the bearing housing body 100, and the locking ring 130 extends into the bearing housing body 100. At this time, the two sets of abutment rings 133 abut against both ends of the bearing, placing the bearing in the centered position within the bearing housing body 100. Then, the L-shaped semi-arc pieces 140 are fitted into the relief ring groove 101, and their locking arc blocks 141 extend into the groove opening 102. At this time, the locking arc blocks 14... The elastic element 103 is deformed by compression and allowed to pass through, while the locking arc block 141 compresses the inclined surface of the conical ring groove 131, generating an external force on the end cover 120 and the locking ring 130 towards the inner center of the bearing housing body 100, so that the end cover 120 is in close contact with the end face of the bearing housing body 100 (a sealing ring can be added between the end cover 120 and the end face of the bearing housing body 100), and the L-shaped semi-arc piece 140 is wrapped around the outer edge of the end cover 120 and fixedly connected to the bearing housing body 100, thereby achieving a better sealing effect;

[0038] When the thickness of the bearing to be replaced changes, the end cap 120 needs to be removed and an external force is applied to the abutment ring 133 to create a gap between the abutment ring 133 and the end face of the locking ring 130. At the same time, an external force is applied to the second stepped arc plate 135 to rotate it in the ring groove 136 and change its position with the first stepped arc plate 132, resulting in a misalignment. At this time, the thickness of the two sets of first stepped arc plates 132 and second stepped arc plates 135 when they come into contact changes, which increases the distance between the end faces of the two sets of abutment rings 133 and the locking ring 130, and reduces the space formed by the two sets of abutment rings 133 in the bearing housing body 100. This allows for bearings of various thicknesses to be accommodated, making the bearing housing more widely applicable. The parts not mentioned in this device are the same as or can be implemented using existing technology.

[0039] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A bearing housing sealing device, comprising a bearing housing body (100) and a positioning seat (110), characterized in that: The bearing housing body (100) is equipped with end caps (120) at both the front and rear ends, and each set of end caps (120) has a locking ring (130) that slides inside the bearing housing body (100) fixed on its end face; The locking ring (130) has an annular groove (136) at one end away from the end cap (120). Two sets of second stepped arc plates (135) are installed in the annular groove (136). The end face of the locking ring (130) is provided with a stop ring (133) that slides in the bearing seat body (100). The end face of the stop ring (133) is fixed with a first stepped arc plate (132) that matches the second stepped arc plate (135). The outer wall of the curved surface of the locking ring (130) is provided with a conical annular groove (131). The outer wall of the bearing seat body (100) is fitted with two sets of locking arc plates that abut against the inclined surface of the conical annular groove (131).

2. The bearing housing sealing device according to claim 1, characterized in that: Each set of locking arc pieces includes two sets of L-shaped semi-arc pieces (140) sleeved on the outer wall of the bearing housing body (100) and extending to the end face of the end cap (120). The two sets of L-shaped semi-arc pieces (140) form a locking ring. The inner wall of each set of L-shaped semi-arc pieces (140) is fixed with three sets of locking arc blocks (141) that abut against the inclined surface of the conical ring groove (131).

3. The bearing housing sealing device according to claim 2, characterized in that: The outer wall of the bearing housing body (100) is provided with a relief ring groove (101) at the contact position with the L-shaped semi-arc piece (140), and a slot (102) is provided at the contact position with the locking arc block (141). Each set of relief ring grooves (101) is provided with an elastic element (103) for constraining the locking arc block (141).

4. The bearing housing sealing device according to claim 1, characterized in that: A positioning ring groove (121) is reserved at the position where the end face of the end cap (120) contacts the L-shaped semi-arc piece (140). The L-shaped semi-arc piece (140) fixes the end cap (120) to the end face of the bearing seat body (100) through the positioning ring groove (121).

5. The bearing housing sealing device according to claim 1, characterized in that: The locking ring (130) has four sets of telescopic rods (134) fixed on its end face and connected to the conical ring groove (131). The locking ring (130) has blind holes for installing the telescopic rods (134) on its end face.

6. The bearing housing sealing device according to claim 1, characterized in that: The positioning seat (110) is fixed to the curved outer wall of the bearing housing body (100), and the top of the positioning seat (110) is provided with a threaded hole near the edge.

7. The bearing housing sealing device according to claim 5, characterized in that: The telescopic rod (134) is equipped with a telescopic spring for automatic return of the telescopic rod (134).

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