Sliding bearing with adjustable shape line state
By designing multiple independent arc-shaped support walls and bending/torsion units on the inner wall of the sliding bearing, and using high-pressure oil to adjust the shape, the load-bearing and lubrication problems of the sliding bearing under different conditions are solved, resulting in temperature reduction and life extension.
Patent Information
- Application Number
- CN202520300375.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Existing sliding bearings have fixed profiles, making it difficult to achieve optimal load-bearing and lubrication performance under different operating conditions, leading to increased temperature, accelerated wear, and shortened service life.
By designing multiple independent arc-shaped support walls on the inner wall of the sliding bearing, and utilizing bending and torsion units and oil reservoirs, the shape of the arc-shaped support walls can be changed by high-pressure oil, thereby adjusting the lubrication effect and load-bearing capacity.
It enables adaptive adjustment of the bearing profile under different operating conditions, reducing temperature, improving lubrication, and extending service life.
Smart Images
Figure CN223594735U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a bearing, especially a sliding bearing with adjustable profile state. BACKGROUND
[0002] The sliding bearing is an important mechanical basic part, which mainly supports the rotating shaft and reduces the friction, and is widely used in the mechanical field. However, the profile of the existing sliding bearing is generally fixed, and it is difficult to achieve the best bearing and lubrication effect under different operating conditions and load actions, which may cause the bearing temperature to rise and the wear to intensify, thereby reducing the working efficiency of the bearing and shortening the service life. SUMMARY
[0003] Therefore, the utility model provides a sliding bearing with adjustable profile state, which can change the profile state of the bearing by adjusting the pressure of the high-pressure oil to make the arc-shaped support wall and the bending and twisting unit deform, so as to adapt to different bearing loads and operating conditions and improve the bearing capacity and lubrication effect of the bearing.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0005] The sliding bearing with adjustable profile state comprises a bearing body in a circular ring structure and an alloy layer applied on the hole surface of the central hole of the bearing body, a plurality of oil inlet grooves and a plurality of oil storage chambers are arranged on the bearing body at intervals, the oil inlet grooves are radially arranged and communicate with the central hole, the oil storage chambers are arranged along the axial direction of the bearing body and are arranged at intervals along the circumferential direction of the bearing body, and a baffle for plugging the oil storage chamber is connected to each end surface of the bearing body; each two oil inlet grooves have one oil storage chamber, the plurality of oil inlet grooves and the plurality of oil storage chambers divide the inner hole wall of the bearing body into a plurality of independent arc-shaped support walls, the arc-shaped support walls are integrated with the bearing body through the bending and twisting unit; a low-pressure oil hole communicating with the oil inlet grooves and a high-pressure oil hole communicating with the oil storage chambers are arranged on the bearing body, the oil inlet grooves are connected with the bearing lubricating oil through the low-pressure oil hole, and the oil storage chambers are connected with the high-pressure oil through the high-pressure oil hole.
[0006] The inner hole wall of the utility model has a plurality of independent arc-shaped support walls, each arc-shaped support wall is connected with the bearing body through the bending and twisting unit, the arc-shaped support wall and the bending and twisting unit can be completely deformed by introducing the high-pressure oil with a certain pressure into the oil storage chamber, so as to change the profile state of the bearing, meet the requirements under different working conditions, reduce the bearing temperature, improve the lubrication effect, and prolong the service life; the design of the oil inlet grooves and the low-pressure oil hole can ensure the smooth entry of the lubricating oil and provide good lubrication conditions for the bearing.
[0007] Preferably, the first end of the oil storage chamber is gradually narrowed in the circumferential direction to the second end, the second end of the oil storage chamber has an axially arranged gap, and the oil storage chamber is communicated with the oil inlet groove at the second end through the gap; the bending and torsion unit is a bending and torsion wall arranged at the first end, and the inner surface of the bending and torsion wall is in a circular arc structure. The beneficial effects are that the oil storage chamber is in a long strip structure with one end large and one end small, the deformation of the arc-shaped supporting wall under stress can better adapt to the deformation of the shaft while ensuring the oil storage capacity, the abrasion is reduced, the lubrication effect is ensured, and the service life of the bearing is prolonged; the small end of the oil storage chamber has a gap, the arc-shaped supporting wall and the bearing body are disconnected, and the flexible deformation of the arc-shaped supporting wall is further improved.
[0008] Preferably, the radial dimension of the gap is 0.05-0.2 mm, and the circumferential length of the gap is 1-3 mm.
[0009] Preferably, the oil storage chamber is 3-6, and is uniformly arranged on the bearing body; the circumferential width of the oil inlet groove is 3-10 mm, and the depth of the oil inlet groove is greater than the thickness of the arc-shaped supporting wall and the radial dimension of the first end of the oil storage chamber, so that the large end (i.e. the first end) of the oil storage chamber is located in the oil inlet groove.
[0010] Compared with the prior art, the inner hole wall of the utility model has a plurality of mutually independent arc-shaped supporting walls, each arc-shaped supporting wall is connected with the bearing body through a bending and torsion unit, the arc-shaped supporting wall and the bending and torsion unit can be completely deformed by introducing high-pressure oil of a certain pressure into the oil storage chamber, so that the profile state of the bearing is changed to meet the needs of different working conditions, the temperature of the bearing is reduced, and the lubrication effect is improved. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the utility model.
[0012] Figure 2 It is a sectional view schematic diagram of the utility model.
[0013] Figure 3 It is Figure 2 The enlarged schematic diagram of A part in figure 1. DETAILED DESCRIPTION
[0014] The embodiments of the utility model will be described in detail below with reference to the drawings, and the embodiments are implemented on the premise of the technical scheme of the utility model, and the detailed implementation mode and specific operation process are given, but the protection scope of the utility model is not limited to the following embodiments.
[0015] It should be noted that in the description of the utility model, the terms "first" and "second" and the like are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between the entities or operations.
[0016] In the description of the utility model, unless otherwise expressly specified and limited, the terms "connected", "connected" that may appear should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.
[0017] As shown in Figures 1-2 The utility model discloses a profile state adjustable sliding bearing, including the bearing body 1 of circular ring structure and the alloy layer 2 of smearing on the center hole hole face of bearing body 1, still including five oil inlets 3 and five oil storage chambers 4 (the number of oil inlet 3 and oil storage chamber 4 can also be other integer in 3 ~ 6) that are separated and arranged on bearing body 1, oil inlet 3 is communicated with the center hole of bearing body 1 and is radially arranged, and the axial length of oil inlet 3 is consistent with bearing body 1. The low-pressure oil hole 5 is radially arranged on the bearing body 1 at the corresponding position of each oil inlet 3, and the oil inlet 3 is connected with the bearing lubricating oil through the low-pressure oil hole 5. The lubricating oil enters the oil inlet 3 through the low-pressure oil hole 5, and then enters the bearing and the shaft for lubrication.
[0018] The oil storage chamber 4 is arranged along the axial direction of the bearing body 1, and the five oil storage chambers 4 are uniformly arranged along the circumferential direction of the bearing body 1. Each end surface of the bearing body 1 is connected with a baffle 6 for plugging the two ports of the oil storage chamber 4, so as to ensure the sealing performance of the oil storage chamber 4. The bearing body 1 has a plurality of high-pressure oil holes 7 radially arranged, and the oil storage chamber 4 and the high-pressure oil hole 7 are communicated one by one. Each oil storage chamber 4 is connected with high-pressure oil (lubricating oil) through the high-pressure oil hole 7, and the high-pressure oil enters the oil storage chamber 4 through the high-pressure oil hole 7.
[0019] There is an oil storage chamber 4 between every two oil inlets 3, and the five oil inlets 3 and the five oil storage chambers 4 divide the inner hole wall of the bearing body 1 into five mutually independent arc-shaped support walls 8. Each arc-shaped support wall 8 corresponds to an oil storage chamber 4, so that each arc-shaped support wall 8 has a certain deformation space. The arc-shaped support wall 8 is connected with the bearing body 1 through a bending and twisting unit 9, so as to ensure the connection between each arc-shaped support wall 8 and the bearing body 1.
[0020] The application changes the structure of traditional sliding bearing, designs the inner hole wall as multiple independent arc supporting walls 8, one end of each arc supporting wall 8 is connected with the bearing body 1, the other end is disconnected with the bearing body 1, and each arc supporting wall 8 corresponds to an oil storage chamber 4, when the oil with certain pressure is input into the oil storage chamber 4, the arc supporting wall 8 and the bending and torsion unit 9 are completely deformed, so that the bearing profile state is changed to meet the requirements in different working conditions, the bearing temperature is reduced, the lubrication effect is improved, and the service life is prolonged.
[0021] During processing, the oil storage chambers 4 are uniformly arranged on the bearing body 1, the oil inlet grooves 3 are uniformly arranged on the bearing body 1, the width of the oil inlet grooves 3 in the circumferential direction is 3-10 mm, the depth of the oil inlet grooves 3 is greater than the thickness of the arc supporting wall 8 and the radial dimension of the first end of the oil storage chamber 4, so that the first end of the oil storage chamber 4 is located in the oil inlet groove 3. The inner hole diameter of the baffle 6 is slightly larger than the hole diameter of the central hole of the bearing body, so that the bearing body is smoothly installed.
[0022] In one preferred embodiment of the application, Figures 2-3 It can be known that the oil storage chamber 4 is a long strip structure (similar to a water drop arranged in the circumferential direction), which has a first end and a second end, the oil storage chamber 4 gradually narrows in the circumferential direction from the first end to the second end, that is, the first end is large, and the second end is small; the small end of the oil storage chamber 4 has an axially arranged gap 10, and the oil storage chamber 4 is communicated with the corresponding oil inlet groove 3 through the gap 10; the bending and torsion unit 9 is a bending and torsion wall arranged at the first end (the bending and torsion wall is also a groove wall of the oil inlet groove 3), and the inner surface of the bending and torsion wall (that is, the large end surface of the oil storage chamber 4) is a circular arc structure. The arc supporting wall 8 is connected with the bearing body 1 through the bending and torsion wall, the gap 10 of the small end of the oil storage chamber 4 disconnects the arc supporting wall 8 and the bearing body 1, improves the flexible deformation ability of the arc supporting wall 8, so as to realize flexible adjustment of the bearing profile state, effectively meet the working requirements in different working conditions, and prolong the service life. The radial dimension of the gap 10 is controlled to be 0.05-0.2 mm, and the length of the gap 10 in the circumferential direction is 1-3 mm, so as to meet the deformation requirements of bearings of different specifications.
[0023] Finally, it should be further emphasized that the above is only the preferred embodiment of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still be modified without the need for creative labor to the technical solutions recorded in the foregoing embodiments, or to make equivalent replacement for some of the technical features. Thus, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application.
Claims
1. A sliding bearing of which the line profile state is adjustable, comprising a bearing body in a circular ring shape and an alloy layer applied to the hole face of the central hole of the bearing body, characterized in that: The bearing body is provided with a plurality of oil inlet grooves and a plurality of oil storage chambers, the oil inlet grooves are radially arranged and communicate with the central hole, the oil storage chambers are arranged along the axial direction of the bearing body, and a plurality of oil storage chambers are arranged along the circumferential direction of the bearing body, each end surface of the bearing body is connected with a baffle for sealing the oil storage chamber, each two oil inlet grooves are provided with an oil storage chamber, the plurality of oil inlet grooves and the plurality of oil storage chambers divide the inner hole wall of the bearing body into a plurality of independent arc-shaped supporting walls, the arc-shaped supporting walls are integrated with the bearing body through a bending and torsion unit, the bearing body is provided with a low-pressure oil hole communicating with the oil inlet grooves and a high-pressure oil hole communicating with the oil storage chambers, the oil inlet grooves are connected with the bearing lubricating oil through the low-pressure oil hole, and the oil storage chambers are connected with high-pressure oil through the high-pressure oil hole.
2. The line profile condition adjustable sliding bearing according to claim 1, characterized in that: The first end of the oil storage chamber is gradually narrowed along the circumferential direction to the second end, the second end of the oil storage chamber is provided with a slit arranged in the axial direction, the oil storage chamber communicates with the oil inlet groove at the second end through the slit, the bending and torsion unit is a bending and torsion wall arranged at the first end, and the inner surface of the bending and torsion wall is a circular arc structure.
3. The line profile condition adjustable plain bearing according to claim 1, characterized in that The radial size of the slit is 0.05-0.2 mm, and the circumferential length of the slit is 1-3 mm.
4. The line profile condition adjustable plain bearing according to claim 1, characterized in that The oil storage chamber is 3-6, and is uniformly arranged on the bearing body; the circumferential width of the oil inlet groove is 3-10 mm, and the depth of the oil inlet groove is greater than the thickness of the arc-shaped supporting wall and the radial size of the first end of the oil storage chamber.