Concave hub bearing single-face bearing structure

Abstract

The utility model relates to the technical field of hub bearings, and discloses a concave hub bearing single-face bearing structure which comprises a ring, an inner ring is rotatably connected to the middle of the inner wall of an outer ring, a first guide groove is formed in the middle of the vertical inner wall of the outer ring, and a plurality of sets of circulation holes are evenly formed in the periphery of the inner wall of the first guide groove. A second guide groove is formed in the middle of the horizontal inner wall of the outer ring, a plurality of balls are slidably connected to the inner wall of the second guide groove, and the upper portions of the outer walls of the balls are sleeved with an upper supporting frame; the guide grooves corresponding to the width of the supporting frame and the bottom diameter of the ball are formed in the vertical inner wall and the horizontal inner wall of the outer ring, so that the ball and the supporting frame in the operation process can be guided and limited, and the situation that the whole rotating radial direction of the bearing is changed due to deviation generated after acting force is applied is avoided; the guide grooves can effectively limit the movement range of the balls and prevent the balls from deviating or inclining in the operation process, so that the stability and reliability of the whole bearing are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hub bearing technical field, concretely is a concave hub bearing single -sided bearing structure. BACKGROUND

[0002] The hub bearing is the key part of connecting tire (or brake disc) and steering knuckle (or axle), it can bear axial load (such as steering force or lateral impact force when vehicle is running), and can bear radial load, main function is to reduce the friction between rotating parts (such as tire) and fixed parts (such as steering knuckle), and transmit strength, ensure that vehicle can travel smoothly, accurately, and the concave hub bearing single -sided bearing structure is a design form of hub bearing, it adopts the structure of one -way bearing, that is, only the bearing in one direction can bear load;

[0003] The sealing design of concave hub bearing can not be as effective as double -sided bearing structure, is vulnerable to the invasion of external pollutants (such as water, dust, etc.), and then influence the lubrication and working performance of bearing, and it is designed as single -sided bearing, when the concave hub bearing bears load from multiple directions, can not effectively disperse stress, to cause the decline of bearing capacity, the design of single -sided bearing structure can make the maintenance and replacement process become complex, especially when operating in a narrow space, can need to disassemble more components, due to the design of single -sided bearing, long -term use can cause fatigue damage, shorten the overall service life of bearing;

[0004] Therefore, a concave hub bearing single -sided bearing structure is provided. INVENTION CONTENTS

[0005] The utility model discloses a concave hub bearing single -sided bearing structure to solve the problem in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a concave hub bearing single -sided bearing structure, including the outer ring, the inner wall middle part of outer ring is connected with the inner ring, the vertical inner wall middle part of outer ring is equipped with guide groove no.

[0007] Preferably, the bottom of the upper support frame is fixedly connected with a plurality of clamping legs, and the outer wall of the ball is sleeved with a lower support frame below.

[0008] Preferably, the middle part of the lower support frame is uniformly provided with a plurality of clamping holes, and the clamping holes and the clamping legs correspondingly clamp and match.

[0009] Preferably, the middle part of the outer ring is provided with an oil injection cavity, and a plurality of return springs are fixedly connected around the inner part of the oil injection cavity.

[0010] Preferably, the top of the return spring is fixedly connected with a sealing ring, and a plurality of pressing pieces are fixedly connected around the top of the sealing ring.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1. The vertical inner wall and the horizontal inner wall of the outer ring are provided with guide grooves with the width of the support frame and the diameter of the bottom of the ball, so that the ball and the support frame in the operation process can be guided and limited, the rotation radius of the bearing as a whole can be prevented from changing due to the deviation caused by the acting force, the movement range of the ball can be effectively limited to prevent the deviation or inclination of the ball in the operation process, the stability and reliability of the whole bearing are improved, the movement of the ball between the inner ring and the outer ring is smoother through the provision of the guide, unnecessary friction and wear are reduced, the service life of the bearing is prolonged, the load applied on the ball can be uniformly distributed through the guide grooves, the local overload phenomenon is avoided, and the carrying capacity and overall performance of the bearing are improved.

[0013] 2. The stable movement of the ball in the guide groove can reduce the vibration and noise in the operation process, the middle part of the outer ring is provided with an oil injection cavity, the position of the sealing ring can be controlled through the deformation of the return spring caused by the pressing of the sealing ring, the inside of the oil injection cavity can be filled with lubricating oil, the inside of the bearing can be conveniently filled with lubricating oil through the oil injection cavity, the trouble of disassembling the whole bearing or the equipment is avoided, the maintenance convenience is improved, the regular filling of lubricating oil can ensure that the bearing always maintains a good lubrication state, the friction and wear are reduced, the service life of the bearing is prolonged, the design of the sealing ring can effectively prevent external pollutants such as dust and water from entering the inside of the bearing, the lubricating oil is protected from being polluted, and the reliability of the bearing is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure perspective schematic view of the utility model;

[0015] Figure 2 It is a vertical section schematic view of the outer ring structure of the utility model;

[0016] Figure 3 It is a part structure split state schematic view of the utility model;

[0017] Figure 4 It is a part structure split state schematic view of the utility model; Figure 3 It is an enlarged schematic view of the middle A of the utility model;

[0018] Figure 5 It is an inner structure schematic view of the outer ring of the utility model.

[0019] In the drawings:

[0020] 1. outer ring; 2. inner ring; 3. guide groove one; 4. guide groove two; 5. upper support frame; 6. clamping leg; 7. lower support frame; 8. ball; 9. clamping hole; 10. oil injection cavity; 11. return spring; 12. sealing ring; 13. pressing piece; 14. flow-through hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0022] Please refer to Figures 1 to 5 An embodiment provided by the present application is as follows: a concave hub bearing single-sided bearing structure, comprising an outer ring 1, a inner ring 2 rotatably connected to the middle part of the inner wall of the outer ring 1, a guide groove one 3 formed in the vertical inner wall of the middle part of the outer ring 1, a plurality of groups of flow-through holes 14 evenly formed in the inner wall of the guide groove one 3, a guide groove two 4 formed in the horizontal inner wall of the middle part of the outer ring 1, a plurality of balls 8 slidingly connected to the inner wall of the guide groove two 4, and an upper support frame 5 sleeved on the outer wall of the ball 8.

[0023] Among them: the rotation adjustment track of the outer ring 1 and the inner ring 2 operates with the same axis;

[0024] Better: install the outer ring 1 on the automobile hub, and then connect and install the inner ring 2 on the outer wall of the shaft rod, the diameter of the ball 8 matches the guide groove one 3, and the ball 8 rolls on the inner wall of the guide groove one 3 and is guided and limited by the guide groove one 3, and the ball is usually made of metal or plastic. In the concave hub bearing single-sided bearing structure, the design of the upper support frame 5 takes into account the requirement of one-way bearing to ensure that the ball 8 can only move in one direction.

[0025] A plurality of clamping legs 6 are fixedly connected to the bottom of the upper support frame 5, a lower support frame 7 is sleeved on the lower part of the outer wall of the ball 8, a plurality of clamping holes 9 are evenly formed in the middle part of the lower support frame 7, the clamping holes 9 correspondingly clamp and match the clamping legs 6, an oil injection cavity 10 is formed in the middle part of the outer ring 1, a plurality of return springs 11 are fixedly connected to the inner wall of the oil injection cavity 10, a sealing ring 12 is fixedly connected to the top of the return spring 11, and a plurality of pressing pieces 13 are fixedly connected to the top of the sealing ring 12;

[0026] Wherein: the width size of the oil injection cavity 10 is unified with the radial width of the sealing ring 12, and the material of the pressing piece 13 is selected from stainless steel;

[0027] More preferably, the lower support frame 7 is clamped below the outer wall of each ball 8, and the upper support frame 5 is connected and locked with the inner wall of the clamping hole 9 through each clamping leg 6, when the ball 8 needs to be repaired and replaced, only need to reverse operation to handle, more convenient and efficient, when the bearing needs to be maintained, only need to press the sealing ring 12 downward by pressing piece 13, so that the reset spring 11 is deformed, and then the sealing ring 12 is popped to the inside of the oil injection cavity 10, and the lubricating oil is injected into the inside of the oil injection cavity 10, and the lubricating oil can flow to the inner wall of the outer ring 1 through the oil injection cavity 10, and contact with each ball 8 to lubricate it, avoiding the trouble of disassembling the whole bearing, improving the convenience of maintenance, regular injection of lubricating oil can ensure that the bearing always maintains good lubrication state, reduces friction and wear, prolongs the service life of the bearing, the design of the sealing ring 12 can effectively prevent dust, moisture and other external pollutants from entering the bearing, protect the lubricating oil from being contaminated, thereby improving the reliability of the bearing.

[0028] The working principle of the above embodiment is as follows:

[0029] The working steps are as follows:

[0030] First, the outer ring 1 is installed on the automobile hub, and then the inner ring 2 is connected and installed on the outer wall of the shaft, the diameter size of the ball 8 is matched with the guide groove 3, corresponding to the rolling on the inner wall of the guide groove 3, and is limited and guided by it, and is a component usually made of metal or plastic. In the concave hub bearing single-sided bearing structure, the design of the upper support frame 5 takes into account the requirement of one-way bearing, to ensure that the ball 8 can only move in one direction, the vertical inner wall and the horizontal inner wall of the outer ring 1 are provided with guide grooves corresponding to the width of the support frame and the diameter of the bottom of the ball 8, so as to guide and limit the ball 8 and the support frame during operation, avoid the rotation of the bearing as a whole due to the deviation caused by the action force, the guide groove can effectively limit the movement range of the ball 8, prevent it from deviating or tilting during operation, thereby improving the stability and reliability of the whole bearing, by providing guidance, the movement of the ball 8 between the inner ring 2 and the outer ring 1 is more smooth, reducing unnecessary friction and wear, prolonging the service life of the bearing;

[0031] The lower support frame 7 is clamped below the outer wall of each ball 8, and the upper support frame 5 is butted into the inner wall of the clamping hole 9 through each clamping leg 6, so that the connection and locking of the upper support frame 5 and the lower support frame 7 are completed, when the ball 8 needs to be overhauled and replaced, only need to reverse the operation to handle, more convenient and efficient, when the bearing needs to be maintained as a whole, only need to press the sealing ring 12 downward by pressing the piece 13, so that the reset spring 11 is deformed, and then the sealing ring 12 is popped out to the inside of the oil injection cavity 10, so that the lubricating oil is injected into the inside of the oil injection cavity 10, and the lubricating oil can flow to the inner wall of the outer ring 1 through the oil injection cavity 10, and contact each ball 8 to lubricate it, avoiding the trouble of disassembling the whole bearing, improving the convenience of maintenance, regular injection of lubricating oil can ensure that the bearing always maintains good lubrication, reduces friction and wear, prolongs the service life of the bearing, and the design of the sealing ring 12 can effectively prevent dust, moisture and other external pollutants from entering the bearing, protect the lubricating oil from being contaminated, and improve the reliability of the bearing.

[0032] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0033] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A concave hub bearing single plane load carrying structure, characterized by: The utility model relates to a kind of outer ring (1), the inner wall middle part of the outer ring (1) is rotatably connected with inner ring (2), the vertical inner wall middle part of the outer ring (1) is equipped with guide groove one (3), the inner wall of the guide groove one (3) is evenly equipped with several groups of through hole (14) in one week, the horizontal inner wall middle part of the outer ring (1) is equipped with guide groove two (4), the inner wall of the guide groove two (4) is slidably connected with several ball (8), the outer wall of the ball (8) is above sleeve and is connected with upper support frame (5).

2. A one-sided load carrying structure for a concave hub bearing according to claim 1, characterized in that: The bottom of the upper support frame (5) is fixedly connected with several clamping legs (6) in one week, the outer wall of the ball (8) is below sleeve and is connected with lower support frame (7).

3. A one-sided load carrying structure for a concave hub bearing according to claim 2, characterized in that: The middle part of the lower support frame (7) is evenly equipped with several clamping holes (9) in one week, and the clamping holes (9) and the clamping legs (6) are correspondingly clamped and matched.

4. A one-sided load carrying structure for a concave hub bearing according to claim 3, wherein: The middle part of the outer ring (1) is equipped with oil injection cavity (10), and the inside of the oil injection cavity (10) is fixedly connected with several return springs (11) in one week.

5. A one-sided load carrying structure for a concave hub bearing according to claim 4, wherein: The top of the return spring (11) is fixedly connected with sealing ring (12), and the top of the sealing ring (12) is fixedly connected with several pressing pieces (13) in one week.

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