Multifunctional lubricating bearing body structure

Abstract

The utility model belongs to the field of mechanical transmission, and provides a multifunctional lubricating bearing body structure which comprises a body and a cover body. Wherein the body forms an oil cavity and a bearing cavity for mounting a target bearing, and further forms an oil mist inlet hole communicated with the bearing cavity as well as a vent hole, an oil return groove and an oil through hole which are respectively communicated with the oil cavity; the first presser foot, the second presser foot, the third presser foot and the fourth presser foot abut against the inner wall of the bearing cavity, a first notch capable of enabling the oil mist inlet hole to be communicated with the bearing cavity is formed in the first presser foot, and the vent hole is sealed by the first presser foot when the first notch is communicated with the oil mist inlet hole. Annular grooves coaxial with the bearing cavity are formed in the sides, away from the center axis of the bearing cavity, of the second presser foot and the fourth presser foot respectively, and four second notches are further formed in the cover body so that the first presser foot, the second presser foot, the third presser foot and the fourth presser foot can be evenly distributed around the center axis of the flange part at intervals.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of mechanical transmission, and particularly relates to a multifunctional lubricated bearing body structure. BACKGROUND

[0002] The conventional bearing body structure is usually designed to adapt to a single lubrication mode: for example, a pure oil mist lubrication structure meets the heat dissipation requirement of a high-speed bearing through high-pressure oil mist injection, but the oil way system of the pure oil mist lubrication structure cannot store lubricating oil, resulting in insufficient lubrication during low-speed operation; and an oil bath lubrication structure relies on an oil storage cavity to immerse a bearing to realize stable lubrication at low speed, but the oil bath lubrication structure is prone to oil splashing and low heat dissipation efficiency during high-speed operation. Since the two lubrication modes have fundamental differences in the requirements for oil ways, exhaust and sealing structures, the existing bearing body often needs to be customized with special structures for different working conditions. When a device needs to operate in a wide speed range (such as a variable-speed machine), the conventional structure cannot realize lubrication mode switching without disassembling components, resulting in poor bearing adaptability, high maintenance cost, and even device failure due to lubrication failure. Therefore, it is necessary to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the embodiment of the application is to provide a multifunctional lubricated bearing body structure to solve the technical problem of single lubrication mode of the bearing body in the prior art.

[0004] To achieve the above purpose, the technical scheme adopted by the application is as follows: a multifunctional lubricated bearing body structure is provided, comprising:

[0005] A body forms an oil cavity and a bearing cavity for mounting a target bearing, and further forms an oil mist inlet hole communicated with the bearing cavity, and an air vent hole, an oil return groove and an oil passage hole communicated with the oil cavity respectively, the air vent hole and the oil return groove are distributed on the upper and lower sides of the bearing cavity along the radial direction of the bearing cavity, and the oil cavity is further communicated with the bearing cavity through the oil passage hole;

[0006] The cover body forms a flange part and first, second, third and fourth pressing feet abutting against the inner wall of the bearing cavity. The first pressing foot forms a first notch enabling the oil mist inlet hole to communicate with the bearing cavity, and the vent hole is closed by the first pressing foot when the first notch communicates with the oil mist inlet hole. The second and fourth pressing feet are oppositely arranged in the radial direction of the bearing cavity and each forms a ring groove coaxial with the bearing cavity on the side away from the central axis of the bearing cavity. The cover body further forms four second notches to uniformly distribute the first, second, third and fourth pressing feet around the central axis of the flange part. The ring groove arranged on the second pressing foot is used to cooperate with the vent hole and the second notch to form a vent gap enabling the oil cavity to communicate with the bearing cavity. The ring groove arranged on the fourth pressing foot is used to cooperate with the oil return groove and the second notch to form an oil return gap enabling the oil cavity to communicate with the bearing cavity. The flange part is detachably connected to the body and can be rotated around its central axis relative to the body to align or turn away the first notch from the oil mist inlet hole.

[0007] Optionally, the oil return groove and the oil passage are arranged in the axial direction of the bearing cavity and are used to distribute on both sides of the target bearing.

[0008] Optionally, the body further forms an oil injection hole and an oil discharge hole respectively communicating with the oil cavity.

[0009] Optionally, the multifunctional lubricated bearing body structure further comprises a screw plug detachably filled in the oil mist inlet hole and used to close the oil mist inlet hole.

[0010] Optionally, the flange part forms a through hole for the target main shaft to extend into the bearing cavity.

[0011] The multifunctional lubricated bearing body structure further comprises a dust cover used to coaxially fit on the target main shaft and extend into the through hole to form a dustproof effect.

[0012] The multifunctional lubricating bearing body structure provided by the application has the beneficial effects that, compared with the prior art, in the multifunctional lubricating bearing body structure provided by the application, the cover body is detachably connected to the body through the flange part and can rotate and adjust relative to the body around the central axis of the cover body, and the first pressing foot, the second pressing foot, the third pressing foot and the fourth pressing foot formed on the cover body abut against the inner wall of the bearing cavity, so that when the cover body rotates and adjusts relative to the body around the central axis of the flange part, the first pressing foot, the second pressing foot, the third pressing foot and the fourth pressing foot can also rotate around the central axis of the flange part. Since the first pressing foot and the third pressing foot are oppositely arranged, and the first gap provided on the first pressing foot can close the vent hole when the oil mist inlet hole is communicated with the first gap, when the oil mist inlet hole is communicated with the bearing cavity through the first gap, the third pressing foot can just block the oil return groove oppositely arranged with the vent hole, so that the target bearing in the bearing cavity can realize the lubrication mode of pure oil mist lubrication. When the flange part rotates by 90° around the central axis thereof, the first gap is closed, and the annular grooves formed on the second pressing foot and the fourth pressing foot can form the vent gap and the oil return gap for communicating the oil chamber with the bearing cavity, respectively. Therefore, due to the balanced pressure effect of the vent gap, the lubricating oil in the oil chamber can be freely transferred from the oil hole to the bearing cavity or transferred from the bearing cavity to the oil chamber through the oil return gap, so that the target bearing in the bearing cavity can realize the lubrication mode of pure oil bath lubrication. Therefore, the multifunctional lubricating bearing body structure provided by the application can realize the quick switching of different lubrication modes by rotating the cover body, which is much better than the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0014] Figure 1 The overall structure of the multifunctional lubricating bearing body structure in the embodiments of the application is shown in the cross-sectional view along the A-A line. Figure 1 ;

[0015] Figure 2 The overall structure of the multifunctional lubricating bearing body structure in the embodiments of the application is shown in the cross-sectional view along the A-A line. Figure 1

[0016] Figure 3 The overall structure of the multifunctional lubricating bearing body structure in the embodiments of the application is shown in the cross-sectional view along the A-A line. Figure 2 ;

[0017] Figure 4 The overall structure of the multifunctional lubricating bearing body structure in the embodiments of the application is shown in the cross-sectional view along the A-A line. Figure 3 ​​

[0018] Figure 5 The overall structure of the cover body in the embodiment of the present application is shown Figure 1 ;

[0019] Figure 6 The overall structure of the cover body in the embodiment of the present application is shown Figure 2 .

[0020] In the figure, the reference signs are as follows: 100, body; 101, oil cavity; 102, bearing cavity; 103, oil mist inlet hole; 104, air vent hole; 105, oil return groove; 106, oil passage hole; 107, oil injection hole; 108, oil discharge hole; 200, cover body; 201, flange part; 202, first pressing foot; 203, second pressing foot; 204, third pressing foot; 205, fourth pressing foot; 206, first notch; 207, ring groove; 208, second notch; 209, air vent gap; 210, oil return gap; 211, through hole; 300, target bearing; 400, target spindle; 500, screw plug; 600, dust cover. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0024] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0025] Please see Figures 1 to 6 Now a multi-functional lubricating bearing body structure provided by the embodiment of the application will be described. The multi-functional lubricating bearing body structure comprises a body 100 and a cover 200. Wherein:

[0026] The body 100 forms an oil cavity 101 and a bearing cavity 102 for mounting a target bearing 300, and also forms an oil mist inlet hole 103 communicated with the bearing cavity 102, and an air vent hole 104, an oil return groove 105 and an oil passage hole 106 respectively communicated with the oil cavity 101, the air vent hole 104 and the oil return groove 105 are distributed on the upper and lower sides of the bearing cavity 102 along the radial direction of the bearing cavity 102, and the oil cavity 101 is also communicated with the bearing cavity 102 through the oil passage hole 106;

[0027] The cover 200 forms a flange part 201 and first, second, third and fourth pressing feet 202, 203, 204 and 205 abutting against the inner wall of the bearing cavity 102, the first pressing foot 202 is formed with a first gap 206 capable of making the oil mist inlet hole 103 communicated with the bearing cavity 102, and the air vent hole 104 is closed by the first pressing foot 202 when the air vent hole 104 is communicated with the oil mist inlet hole 103 through the first gap 206, the second and fourth pressing feet 203 and 205 are oppositely arranged in the radial direction of the bearing cavity 102 and respectively formed with a ring groove 207 coaxial with the bearing cavity 102 on the side away from the central axis of the bearing cavity 102, the cover 200 is also formed with four second gaps 208 to make the first, second, third and fourth pressing feet 202, 203, 204 and 205 uniformly and spacedly distributed around the central axis of the flange part 201, the ring groove 207 arranged on the second pressing foot 203 is used to form an air vent gap 209 making the oil cavity 101 communicated with the bearing cavity 102 by cooperating with the air vent hole 104 and the second gap 208, the ring groove 207 arranged on the fourth pressing foot 205 is used to form an oil return gap 210 making the oil cavity 101 communicated with the bearing cavity 102 by cooperating with the oil return groove 105 and the second gap 208, and the flange part 201 is detachably connected to the body 100 and can be rotated and adjusted relative to the body 100 around the central axis thereof to make the first gap 206 aligned with or turned away from the oil mist inlet hole 103. In the embodiment, the oil cavity 101 can perform oil bath lubrication for the target bearing 300 in the bearing cavity 102 through the oil passage hole 106 communicated with the bearing cavity 102, and the oil mist inlet hole 103 can perform oil mist lubrication for the target bearing 300 in the bearing cavity 102 by being communicated with an external oil mist supply device.

[0028] According to the above structure provided in the embodiment, in the multifunctional lubricating bearing body structure provided in the embodiment, since the cover 200 is detachably connected to the body 100 through the flange portion 201 and can rotate and adjust relative to the body 100 around the central axis thereof, and since the first pressing foot 202, the second pressing foot 203, the third pressing foot 204 and the fourth pressing foot 205 are formed on the cover 200 and abut against the inner wall of the bearing cavity 102, when different lubricating schemes are needed, only the cover 200 needs to be rotated relative to the body 100 around the central axis of the flange portion 201, so that the first pressing foot 202, the second pressing foot 203, the third pressing foot 204 and the fourth pressing foot 205 can also rotate around the central axis of the flange portion 201. Since the first pressing foot 202 and the third pressing foot 204 are oppositely arranged, and since the first gap 206 arranged on the first pressing foot 202 can close the air vent hole 104 when the oil mist inlet hole 103 is communicated with the bearing cavity 102, when the oil mist inlet hole 103 is communicated with the bearing cavity 102 through the first gap 206, the third pressing foot 204 can block the oil return groove 105 arranged opposite to the air vent hole 104 to avoid that the oil mist directly enters the oil cavity 101 from the oil return groove 105, so that the oil mist from the oil mist inlet hole 103 can enter the rolling elements of the target bearing 300 and then enter the oil cavity 101 through the oil inlet hole 106 and then circulate back to the external oil mist supply device through the oil outlet hole 108 (to be described later), that is, the target bearing 300 in the bearing cavity 102 can realize the lubricating mode of pure oil mist lubrication. When the flange portion 201 is rotated 90° around the central axis thereof, the first gap 206 is closed, and the annular grooves 207 formed on the second pressing foot 203 and the fourth pressing foot 205 can respectively form the air vent gap 209 and the oil return gap 210 that communicate the oil cavity 101 with the bearing cavity 102, so that due to the balance of air pressure of the air vent gap 209, the lubricating oil in the oil cavity 101 can be transferred from the oil inlet hole 106 to the bearing cavity 102 or transferred from the bearing cavity 102 to the oil cavity 101 through the oil return gap 210, so that the target bearing 300 in the bearing cavity 102 can realize the lubricating mode of pure oil bath lubrication. Therefore, the multifunctional lubricating bearing body structure provided in the embodiment can realize the quick switching of different lubricating modes only by rotating and adjusting the cover 200, which is much better than the prior art.

[0029] In another embodiment of the present application, please refer to Figures 1 to 6 , the oil return groove 105 and the oil inlet hole 106 are arranged in the axial direction of the bearing cavity 102 and are used to distribute on both sides of the target bearing 300. According to the above structure provided in the embodiment, the oil return groove 105 and the oil inlet hole 106 distributed on both sides of the target bearing 300 can more smoothly complete the circulation of the lubricating oil, so that the oil bath lubrication function of the multifunctional lubricating bearing body structure in the embodiment can be better realized.

[0030] Please see Figures 1 to 6 In the embodiment of the present application, the oil hole 106 is provided as a through hole structure for the target spindle 400 to pass through. When the target bearing 300 is installed into the bearing cavity 102, and the target spindle 400 is installed into the target bearing 300 and the shaft end of the target spindle 400 extends into the oil cavity 101, the oil cavity 101 can still communicate with the rolling elements of the target bearing 300 through the gap between the outer cylindrical surface of the target spindle 400 and the inner wall of the oil hole 106, and the circulation of lubricating oil is more smooth, so that the target bearing 300 can be well lubricated in the oil bath or oil mist lubrication state, and the lubrication function of the multifunctional lubricating bearing body structure in the embodiment can be further realized.

[0031] In another embodiment of the present application, please see Figures 1 to 6 The body 100 further forms an oil injection hole 107 and an oil discharge hole 108 which respectively communicate with the oil cavity 101. According to the above structure provided in the embodiment, the oil injection hole 107 and the oil discharge hole 108 formed on the body 100 can facilitate the injection, replacement or circulation of lubricating oil in the oil cavity 101, so that the multifunctional lubricating bearing body structure in the embodiment can achieve better oil bath lubrication effect.

[0032] In another embodiment of the present application, please see Figures 1 to 6 The multifunctional lubricating bearing body structure further includes a screw plug 500 which can be detachably filled in the oil mist inlet hole 103 and used to close the oil mist inlet hole 103. According to the above structure provided in the embodiment, the screw plug 500 arranged in the oil mist inlet hole 103 can effectively prevent impurities from entering the bearing cavity 102 by closing the oil mist inlet hole 103 when the oil bath lubrication mode is adopted, so that the multifunctional lubricating bearing body structure in the embodiment can achieve better oil bath lubrication effect.

[0033] In another embodiment of the present application, please see Figures 1 to 6 The flange portion 201 forms a through hole 211 for the target spindle 400 to extend into the bearing cavity 102; the multifunctional lubricating bearing body structure further includes a dust cover 600 which is coaxially sleeved on the target spindle 400 and extends into the through hole 211 to form a dustproof effect. According to the above structure provided in the embodiment, the dust cover 600 arranged in the through hole 211 can effectively prevent impurities from entering the bearing cavity 102, so that the multifunctional lubricating bearing body structure in the embodiment can achieve better lubrication effect.

[0034] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-functional lubricated bearing body structure, characterized by, Comprise: The body (100) forms an oil cavity (101) and a bearing cavity (102) for installing a target bearing (300), also forms an oil mist inlet hole (103) communicated with the bearing cavity (102), and respectively forms a vent hole (104), an oil return groove (105) and an oil passage hole (106) communicated with the oil cavity (101), the vent hole (104) and the oil return groove (105) are distributed on the upper and lower sides of the bearing cavity (102) along the radial direction of the bearing cavity (102), and the oil cavity (101) is also communicated with the bearing cavity (102) through the oil passage hole (106); The cover body (200) forms a flange part (201) and a first pressing foot (202), a second pressing foot (203), a third pressing foot (204) and a fourth pressing foot (205) abutting against the inner wall of the bearing cavity (102), the first pressing foot (202) forms a first gap (206) capable of making the oil mist inlet hole (103) communicated with the bearing cavity (102), and the vent hole (104) is closed by the first pressing foot (202) when the first gap (206) is communicated with the oil mist inlet hole (103), the second pressing foot (203) and the fourth pressing foot (205) are oppositely arranged in the radial direction of the bearing cavity (102) and respectively form a ring groove (207) coaxial with the bearing cavity (102) on the side away from the central axis of the bearing cavity (102), the cover body (200) further forms four second gaps (208) to make the first pressing foot (202), the second pressing foot (203), the third pressing foot (204) and the fourth pressing foot (205) uniformly spaced around the central axis of the flange part (201), the ring groove (207) arranged on the second pressing foot (203) is used to cooperate with the vent hole (104) and the second gap (208) to form a vent gap (209) for making the oil cavity (101) communicated with the bearing cavity (102), the ring groove (207) arranged on the fourth pressing foot (205) is used to cooperate with the oil return groove (105) and the second gap (208) to form an oil return gap (210) for making the oil cavity (101) communicated with the bearing cavity (102), the flange part (201) is detachably connected to the body (100) and can be rotated and adjusted relative to the body (100) around the central axis thereof, so that the first gap (206) is aligned to communicate with the oil mist inlet hole (103) or turned away from the oil mist inlet hole (103).

2. The multifunctional lubricating bearing body structure according to claim 1, characterized in that: The oil return groove (105) and the oil passage hole (106) are arranged in the axial direction of the bearing cavity (102) and are used to distribute on both sides of the target bearing (300).

3. The multifunctional lubricating bearing body structure according to claim 1, characterized in that: The body (100) further forms an oil injection hole (107) and an oil discharge hole (108) communicated with the oil cavity (101).

4. The multifunctional lubricated bearing body structure according to claim 1, characterized in that: The multifunctional lubricated bearing body structure further comprises a screw plug (500) detachably filled in the oil mist inlet hole (103) and used for closing the oil mist inlet hole (103).

5. The multifunctional lubricated bearing body structure according to claim 1, characterized in that: A through hole (211) is formed on the flange part (201) for the target spindle (400) to extend into the bearing cavity (102); The multifunctional lubricated bearing body structure further comprises a dust cover (600) coaxially sleeved on the target spindle (400) and extending into the through hole (211) to form a dustproof effect.

Images