Bearing airtightness detection device and bearing airtightness detection method

Abstract

The embodiment of the invention provides a bearing airtightness detection device and a bearing airtightness detection method, and relates to the field of bearing detection. The bearing air tightness detection device comprises a frame body, a bearing part, a pressing part and a detection part, wherein the bearing part is connected to the frame body and is used for bearing the bearing, the pressing part is connected to the frame body and is used for pressing the bearing, a sealing cavity is defined by the pressing part, the inner ring end face and the outer ring end face of the bearing, the pressing part is provided with a flow guide channel, the flow guide channel is communicated with the sealing cavity, and the detection part is arranged on the pressing part and is located in the sealing cavity. In the detection operation process, the frame body is used for playing a supporting and fixing role, so that the bearing can be borne on the bearing part, then the pressing part is used for pressing the bearing to form the sealing cavity, the sealing cavity is inflated through the flow guide channel, and then the detection part is used for detection, so that the operation steps of the air tightness detection operation of the bearing are simplified, and the detection efficiency is improved. And the convenience of air tightness detection operation is improved.

Description

Technical Field

[0001] The present invention relates to the field of bearing inspection, and in particular to a bearing air tightness detection device and a bearing air tightness detection method. Background Art

[0002] After the bearing is processed and formed, it is usually necessary to perform an air tightness test on it to ensure that the air tightness of the bearing meets the design requirements.

[0003] The existing air tightness testing operation needs to be carried out by multiple auxiliary tools in coordination, which has the problems of complicated steps and inconvenient operation. Summary of the invention

[0004] The present invention provides a bearing air tightness detection device and a bearing air tightness detection method, which can simplify the bearing air tightness detection steps and thus improve the convenience of the air tightness detection operation.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, an embodiment of the present invention provides a bearing air tightness detection device, comprising:

[0007] Frame, bearing parts, pressing parts and testing parts;

[0008] Among them, the supporting member is connected to the frame and is used to support the bearing, the pressing member is connected to the frame and is used to press the bearing, and is combined with the inner ring end face and the outer ring end face of the bearing to form a sealed cavity, the pressing member is provided with a guide channel, and the guide channel is connected to the sealed cavity, and the detection member is arranged on the pressing member and is located in the sealed cavity.

[0009] Optionally, at least one of the pressing member and the supporting member is telescopically connected to the frame, so that the pressing member can approach and press the bearing.

[0010] Optionally, the pressing part includes a pressing base, a pressing connecting rod and a pressing head which are arranged in sequence, the pressing base is connected to the frame, the pressing head is used to press the bearing and has a confluence outlet, the pressing connecting rod has a confluence outlet, and the guide channel is formed between the confluence outlet and the confluence outlet.

[0011] Optionally, the pressing head includes an inner pressure head and an outer pressure head which are sleeved together, an annular groove is provided between the inner pressure head and the outer pressure head, the inner pressure head is used to press the inner ring end face, the outer pressure head is used to press the outer ring end face, the outlet is opened on the side wall of the inner pressure head and is connected to the annular groove, and the detection component is arranged on the inner pressure head and / or the outer pressure head.

[0012] Optionally, the pressing member further includes a sealing gasket, and the sealing gasket is arranged on the bottom surface of the pressing head.

[0013] Optionally, the pressing base is rotatably connected to the frame, and / or the pressing base is telescopically connected to the frame.

[0014] Optionally, the bearing member includes a bearing base, a bearing connecting rod and a bearing plate which are arranged in sequence, the bearing base is telescopically connected to the frame, and the bearing plate is used to bear the bearing.

[0015] Optionally, the bearing member further comprises a rotational power source, wherein the rotational power source is connected to the bearing base and is transmission-connected to the bearing connecting rod so as to drive the bearing plate to rotate via the bearing connecting rod.

[0016] Optionally, the bearing member further comprises a driving gear and a driven gear, the driving gear is coaxially connected to the rotary power source, the driven gear is coaxially connected to the bearing connecting rod, and the driving gear is meshed with the driven gear.

[0017] In a second aspect, an embodiment of the present invention further provides a bearing air tightness detection method, which is implemented by the bearing air tightness detection device, and the bearing air tightness detection method includes:

[0018] Controlling the bearing member to carry the bearing;

[0019] Controlling the pressing member to press the bearing tightly;

[0020] Controlling the flow guide channel to fill the sealed cavity with gas;

[0021] The detection element is controlled to output parameter information describing the gas.

[0022] The beneficial effects of the bearing air tightness detection device and the bearing air tightness detection method according to the embodiments of the present invention include, for example:

[0023] The bearing air tightness detection device includes a frame, a bearing, a pressing piece and a detection piece; wherein the bearing is connected to the frame and used to bear the bearing, the pressing piece is connected to the frame and used to press the bearing, and is enclosed with the inner ring end face and the outer ring end face of the bearing to form a sealed cavity, the pressing piece is provided with a guide channel, the guide channel is connected to the sealed cavity, and the detection piece is arranged on the pressing piece and is located in the sealed cavity. During the detection operation, the frame is used to play a supporting and fixing role, so that the bearing can be carried on the bearing, and then the pressing piece is used to press the bearing to form a sealed cavity, the sealed cavity is inflated through the guide channel, and then the detection piece is used to perform detection, thereby simplifying the operation steps of the bearing air tightness detection operation and improving the convenience of the air tightness detection operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic structural diagram of a bearing air tightness detection device provided in an embodiment of the present invention at a first viewing angle;

[0026] Figure 2 It is a structural schematic diagram of a bearing air tightness detection device provided in an embodiment of the present invention at a second viewing angle;

[0027] Figure 3 It is a schematic diagram of the positions of the pressing head and the detection member provided in the embodiment of the present invention.

[0028] Icons: 100-bearing air tightness detection device; 110-frame; 120-carrying member; 121-carrying base; 122-carrying connecting rod; 123-carrying plate; 124-rotating power source; 125-driving gear; 126-driven gear; 130-pressing member; 131-pressing base; 132-pressing connecting rod; 133-pressing head; 1331-inner pressure head; 1332-outer pressure head; 1333-annular groove; 134-inlet; 135-flow guide channel; 136-inlet; 137-sealing pad; 140-detection member. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0034] The terms "comprises," "comprising," or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0035] Unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0037] Embodiment 1

[0038] refer to Figure 1 and Figure 2 , an embodiment of the present invention provides a bearing air tightness detection device 100, which includes: a frame 110, a bearing member 120, a pressing member 130 and a detection member 140;

[0039] Among them, the supporting member 120 is connected to the frame 110 and is used to support the bearing, the pressing member 130 is connected to the frame 110 and is used to press the bearing, and is surrounded by the inner ring end face and the outer ring end face of the bearing to form a sealed cavity, the pressing member 130 is provided with a guide channel 135, the guide channel 135 is connected to the sealed cavity, and the detection member 140 is arranged on the pressing member 130 and is located in the sealed cavity.

[0040] During the detection operation, the frame 110 is used to support and fix the bearing, so that the bearing can be supported on the carrier 120, and then the pressing part 130 is used to press the bearing to form a sealed cavity. The sealed cavity is inflated through the guide channel 135, and then the detection part 140 is used for detection, thereby simplifying the operating steps of the bearing air tightness detection operation and improving the convenience of the air tightness detection operation.

[0041] It is worth noting that in order to accurately detect the air tightness, the detection member 140 can be a pressure sensor, which outputs a pressure value representing the gas in the sealing cavity to determine whether the sealing performance of the bearing meets the design requirements.

[0042] In the present embodiment, a design is provided to facilitate the installation of the bearing, so that at least one of the pressing member 130 and the supporting member 120 can be telescopically connected to the frame 110, so that the pressing member 130 can approach and press the bearing; that is, only the pressing member 130 can be telescopically connected to the frame 110, only the supporting member 120 can be telescopically connected to the frame 110, or both the pressing member 130 and the supporting member 120 can be telescopically connected to the frame 110.

[0043] refer to Figure 1-Figure 3 The pressing part 130 includes a pressing base 131, a pressing connecting rod 132 and a pressing head 133 which are arranged in sequence. The pressing base 131 is connected to the frame 110. The pressing head 133 is used to press the bearing and has a confluence port 136. The pressing connecting rod 132 has a confluence port 134. A guide channel 135 is formed between the confluence port 134 and the confluence port 136.

[0044] Specifically, the pressing base 131 is retractably and rotatably connected to the frame 110, and the pressing base 131 itself has a retractable power source, which can drive the pressing head 133 to approach or move away from the bearing 120. In addition, by driving the pressing head 133 to move, the pressing force applied to the bearing can also be adjusted.

[0045] It is worth noting that the telescopic power source used in the pressing base 131 can specifically be a telescopic electric cylinder, a telescopic air cylinder or a telescopic hydraulic cylinder, and its specific power shape is not limited.

[0046] refer to Figure 3 In order to cooperate with the bearing to form a sealed cavity, the pressing head 133 can include an inner pressure head 1331 and an outer pressure head 1332 which are sleeved together, and an annular groove 1333 is provided between the inner pressure head 1331 and the outer pressure head 1332. The inner pressure head 1331 is used to press the inner ring end face, and the outer pressure head 1332 is used to press the outer ring end face. The outlet 136 is provided on the side wall of the inner pressure head 1331 and is connected to the annular groove 1333. The detection member 140 is provided on the inner pressure head 1331 and / or the outer pressure head 1332.

[0047] In the present embodiment, the number of the detection component 140 is one, and the single detection component 140 is installed on the inner wall of the external pressure head 1332; of course, in other embodiments of the present invention, the number of the detection components 140 can also be two, three, five, eight, etc., and they can also be installed on the outer wall of the internal pressure head 1331 or the bottom wall of the annular groove 1333. There is no limitation on the specific setting position and number of the detection components 140.

[0048] refer to Figure 1 and Figure 2 In order to further improve the sealing performance and avoid gas leakage caused by the gap between the bearing and the pressing head 133, the pressing part 130 can also include a sealing gasket 137, which is arranged on the bottom surface of the pressing head 133 and is used to seal the gap between the bottom surface of the pressing head 133 and the top surface of the bearing.

[0049] refer to Figure 1 and Figure 2 The bearing member 120 includes a bearing base 121, a bearing connecting rod 122 and a bearing plate 123 which are arranged in sequence. The bearing base 121 is telescopically connected to the frame 110, and the bearing plate 123 is used to bear the bearing.

[0050] In the working state, the supporting base 121 can drive the supporting plate 123 to move up and down through the telescopic movement with the frame body 110 , so that the supporting plate 123 is relatively close to or away from the pressing head 133 .

[0051] The telescopic movement of the supporting base 121 can be achieved by installing a telescopic power source inside the supporting base 121, and the telescopic power source used in the supporting base 121 can specifically be a telescopic electric cylinder, a telescopic air cylinder or a telescopic hydraulic cylinder, and its specific power shape is not limited.

[0052] In addition, in order to further improve the reliability of air tightness detection, the bearing 120 may further include a rotational power source 124, which is connected to the bearing base 121 and is in transmission connection with the bearing connecting rod 122, so as to drive the bearing plate 123 to rotate through the bearing connecting rod 122. By rotating the bearing plate 123, the bearing is driven to rotate synchronously, thereby forming a relative rotation with the pressing head 133, which is helpful to verify the air tightness when the bearing is rotating.

[0053] Furthermore, in order to verify the air tightness of the inner ring and outer ring of the bearing in a relative rotation state, the supporting plate 123 can only support the inner ring or outer ring of the bearing, so that when the supporting plate 123 rotates, it can only drive the supported part to rotate, so as to verify the air tightness of the inner ring and outer ring of the bearing in a relative rotation state.

[0054] refer to Figure 1 and Figure 2 The bearing member 120 further includes a driving gear 125 and a driven gear 126. The driving gear 125 is coaxially connected to the rotating power source 124, and the driven gear 126 is coaxially connected to the bearing connecting rod 122. The driving gear 125 meshes with the driven gear 126. During operation, the rotating power source 124 provides power to drive the driving gear 125 to rotate, the driving gear 125 meshes with the driven gear 126, and then the driven gear 126 drives the bearing connecting rod 122 and the bearing plate 123 to rotate.

[0055] It is worth noting that the number of teeth of the driving gear 125 is less than the size of the driven gear 126 to achieve differential transmission. In addition, the rotary power source 124 can be a rotary electric cylinder, a rotary air cylinder or a rotary hydraulic cylinder, and the specific power form of the rotary power source 124 is not limited.

[0056] Embodiment 2

[0057] The embodiment of the present invention further provides a bearing air tightness detection method, which is implemented by the above-mentioned bearing air tightness detection device 100. The bearing air tightness detection method includes:

[0058] Step S100: controlling the bearing 120 to bear the bearing;

[0059] Step S200: controlling the pressing member 130 to press the bearing;

[0060] Step S300: controlling the flow guide channel 135 to fill the sealed cavity with gas;

[0061] Step S400: Control the detection element 140 to output parameter information describing the gas.

[0062] It is worth noting that the specific details in the above steps can be completed by the division of labor of each component in the first embodiment.

[0063] Embodiment 3

[0064] The embodiment of the present invention further provides a bearing lubrication method, which is implemented by the above-mentioned bearing air tightness detection device 100. The bearing lubrication method includes:

[0065] Step X100: Control the bearing to be placed between the bearing member 120 and the pressing member 130;

[0066] Step X200: Control the flow guide channel 135 to evacuate the sealed cavity;

[0067] Step X300: Control the flow guide channel 135 to fill the sealing cavity with lubricating medium;

[0068] Step X400: Control the bearing member 120 or the pressing member 130 to rotate so that the inner ring and the outer ring of the bearing rotate relative to each other.

[0069] It is worth noting that in order to further disperse the lubricating medium, step X300 and step X400 may be performed simultaneously.

[0070] In addition, in order to make the overall bearing processing more convenient, the air tightness test and bearing lubrication can be integrated into an operation. First, the bearing is tested for air tightness, and then the lubrication operation is performed after the test is completed. The specific operation steps can be carried out in the order of S100-S200-S300-S400-X200-X300-X400.

[0071] In summary, the bearing air tightness detection device provided by the embodiments of the present invention has at least the following advantages:

[0072] (1) The bearing can be supported on the support member 120, and then the pressing member 130 is used to press the bearing to form a sealed cavity. The sealed cavity is inflated through the guide channel 135, and then the detection member 140 is used to detect it, thereby simplifying the operating steps of the bearing air tightness detection operation and improving the convenience of the air tightness detection operation.

[0073] (2) It can perform bearing air tightness detection and bearing lubrication operations, thereby integrating the two processes, improving operating efficiency while reducing equipment costs.

[0074] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A bearing air tightness detection device, characterized in that: include: A frame (110), a bearing member (120), a pressing member (130) and a detection member (140); The bearing member (120) is connected to the frame (110) and is used to bear the bearing, the pressing member (130) is connected to the frame (110) and is used to press the bearing, and is combined with the inner ring end face and the outer ring end face of the bearing to form a sealed cavity, the pressing member (130) is provided with a guide channel (135), and the guide channel (135) is connected to the sealed cavity, and the detection member (140) is arranged on the pressing member (130) and is located in the sealed cavity.

2. The bearing air tightness detection device according to claim 1, characterized in that: At least one of the pressing member (130) and the bearing member (120) is telescopically connected to the frame (110) so that the pressing member (130) can approach and press the bearing.

3. The bearing air tightness detection device according to claim 1, characterized in that: The pressing part (130) comprises a pressing base (131), a pressing connecting rod (132) and a pressing head (133) which are arranged in sequence. The pressing base (131) is connected to the frame (110). The pressing head (133) is used to press the bearing and is provided with a confluence port (136). The pressing connecting rod (132) is provided with a confluence port (134). The guide channel (135) is formed between the confluence port (134) and the confluence port (136).

4. The bearing air tightness detection device according to claim 3, characterized in that: The pressing head (133) comprises an inner pressure head (1331) and an outer pressure head (1332) which are sleeved together, an annular groove (1333) is provided between the inner pressure head (1331) and the outer pressure head (1332), the inner pressure head (1331) is used to press the inner ring end face, and the outer pressure head (1332) is used to press the outer ring end face, the outlet (136) is provided on the side wall of the inner pressure head (1331) and is connected to the annular groove (1333), and the detection component (140) is provided on the inner pressure head (1331) and / or the outer pressure head (1332).

5. The bearing air tightness detection device according to claim 3, characterized in that: The pressing piece (130) further comprises a sealing gasket (137), and the sealing gasket (137) is arranged on the bottom surface of the pressing head (133).

6. The bearing air tightness detection device according to claim 3, characterized in that: The pressing base (131) is rotatably connected to the frame (110), and / or the pressing base (131) is telescopically connected to the frame (110).

7. The bearing air tightness detection device according to any one of claims 2 to 6, characterized in that: The bearing member (120) comprises a bearing base (121), a bearing connecting rod (122) and a bearing plate (123) which are arranged in sequence; the bearing base (121) is telescopically connected to the frame (110); and the bearing plate (123) is used to bear the bearing.

8. The bearing air tightness detection device according to claim 7, characterized in that: The bearing member (120) further comprises a rotational power source (124), wherein the rotational power source (124) is connected to the bearing base (121) and is transmission-connected to the bearing connecting rod (122) so as to drive the bearing plate (123) to rotate via the bearing connecting rod (122).

9. The bearing air tightness detection device according to claim 8, characterized in that: The bearing member (120) further comprises a driving gear (125) and a driven gear (126), wherein the driving gear (125) is coaxially connected to the rotating power source (124), and the driven gear (126) is coaxially connected to the bearing connecting rod (122), and the driving gear (125) is meshed with the driven gear (126).

10. A method for detecting air tightness of a bearing, characterized in that: The bearing air tightness detection device according to any one of claims 1 to 9 is implemented, and the bearing air tightness detection method comprises: Controlling the bearing member (120) to bear the bearing; Controlling the pressing member (130) to press the bearing; Controlling the flow guide channel (135) to fill the sealed cavity with gas; The detection element (140) is controlled to output parameter information describing the gas.

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