Embedding method for in-situ manufacturing of bearing sensing elements and machining method for embedding grooves

Abstract

This invention relates to an in-situ manufacturing and embedding method for bearing sensing elements, comprising the following steps: Step 1, preparing a sensing element for detecting vibration, temperature, and strain information, a heat insulation frame matching the sensing element, an integrated microsystem placed within the heat insulation frame, and a copper cap; Step 2, creating a stepped embedding groove, wider at the top and narrower at the bottom, according to the dimensions of the copper cap and the heat insulation frame; Step 3, placing the sensing element at the bottom of the embedding groove, then placing the heat insulation frame at the bottom of the embedding groove with its upper part flush with the stepped portion of the embedding groove, then placing the integrated microsystem within the heat insulation frame, and finally installing the copper cap onto the outside of the embedding groove. The purpose of this invention is to provide an in-situ manufacturing and embedding method for bearing sensing elements and a method for processing the embedding groove. By creating an embedding groove on the bearing, the sensing element is installed inside the bearing without affecting the overall structure of the bearing, while simultaneously enabling the monitoring of bearing data through the sensing element.

Description

Technical Field

[0001] This invention relates to the field of bearings, and more particularly to an embedding method for in-situ manufacturing of bearing sensing elements and a method for processing embedding grooves. Background Technology

[0002] As a core structural component, bearings are widely used in various industries. For some demanding operating environments, it is necessary to understand the dynamic condition of the bearing. In this case, sensing elements are needed to detect relevant data of the bearing, such as vibration, temperature and strain information. Such bearings can also be called smart bearings. However, how to install sensing elements on the bearing without affecting its use is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0003] The purpose of this invention is to provide an embedding method for in-situ manufacturing of bearing sensing elements and a processing method for the embedding groove. By opening an embedding groove on the bearing, the sensing element is installed inside the bearing, so as not to affect the overall structure of the bearing, while the bearing data can be monitored through the sensing element.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: an embedding method for in-situ manufacturing of bearing sensing elements, comprising the following steps:

[0005] Step 1: Prepare the sensitive element for detecting vibration, temperature and strain information, the heat insulation frame that matches the sensitive element, the integrated microsystem placed inside the heat insulation frame, and the copper cover;

[0006] Step 2: Create a stepped embedding groove that is wider at the top and narrower at the bottom, according to the dimensions of the copper cap and the heat insulation frame;

[0007] Step 3: Place the sensitive element at the bottom of the embedding slot, then place the heat insulation frame at the bottom of the embedding slot and align the top of the heat insulation frame with the stepped portion of the embedding slot. Next, place the integrated microsystem inside the heat insulation frame, and then install the copper cap on the outside of the embedding slot.

[0008] Preferably, the lower part of the embedding groove is interference-fitted with the heat insulation frame.

[0009] Preferably, an inverted conical cladding groove is provided at the step of the embedding groove, and the lower part of the cladding groove exceeds the height of the sensitive element after installation. After the heat insulation frame is installed, laser cladding powder is filled into the cladding groove to form a cladding area through laser cladding, and the heat insulation frame and bearing are connected as one unit through the cladding area.

[0010] Preferably, the method for processing the embedded groove includes the following steps:

[0011] Step 1: First, mark lines on the bearing according to the dimensions of the heat insulation frame and the copper cover;

[0012] Step 2: Use milling to machine the scribed part of the bearing to create an embedding groove with a cladding groove.

[0013] Preferably, the upper and lower parts of the stepped embedding groove are both machined by rough milling and finish milling. A φ12 tool is used for rough milling, and a φ6 tool is used for finish milling. The finish milling amount is 1mm.

[0014] Preferably, the milling cutter speed is 700 rpm, the longitudinal feed is 23.5 mm / min, the transverse feed is 15 mm / min, and the vertical feed is 8 mm / min.

[0015] Preferably, in step 2, the smaller part of the embedding groove is first machined by rough milling and finish milling, then the larger part of the embedding groove is machined by rough milling, then the cladding groove is machined by rough milling, and finally the larger part of the embedding groove is machined by finish milling.

[0016] The technical advantages of this invention are as follows: By creating an embedding groove in the bearing, the sensing element is installed inside the bearing without affecting the overall structure of the bearing. Simultaneously, the sensing element can monitor bearing data. The lower part of the embedding groove has an interference fit with the heat insulation frame, and an inverted conical cladding groove is formed at the step of the embedding groove. A cladding area is formed by laser cladding, which integrates the heat insulation frame and the bearing, ensuring their integrity. The heat insulation frame also presses the sensing element firmly, preventing relative movement between the frame and the bearing and ensuring consistent bearing movement. Furthermore, the embedding groove is machined using a combination of roughing and finishing processes. Only the cladding groove is rough-machined, and the finishing of the step is performed after the cladding groove is created. This reduces the area requiring finishing and lowers processing costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the bearing and the embedded groove.

[0018] Figure 2 A partial cross-sectional view after the sensing element has been installed.

[0019] The text labels in the figure represent: 1. Bearing; 2. Embedded groove; 3. Sensitive element; 4. Heat insulation frame; 5. Integrated microsystem; 6. Copper cap; 7. Cladding area. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0021] Example 1

[0022] An in-situ manufacturing and embedding method for bearing sensing elements includes the following steps:

[0023] Step 1: Prepare the sensitive element 3 for detecting vibration, temperature and strain information, the heat insulation frame 4 that matches the sensitive element 3, the integrated microsystem 5 placed inside the heat insulation frame 3, and the copper cover 6.

[0024] Step 2: Based on the dimensions of the copper cover and the heat insulation frame, create a stepped embedding groove 2 that is wider at the top and narrower at the bottom. An inverted conical cladding groove is created at the step of the embedding groove, and the lower part of the cladding groove extends beyond the height of the sensitive element after installation.

[0025] Step 3: Place the sensitive element 3 into the bottom of the embedding groove 2, then place the heat insulation frame 4 into the bottom of the embedding groove 2 to press down the sensing element, and make the upper part of the heat insulation frame 4 flush with the stepped part of the embedding groove 2, and the lower part of the embedding groove and the heat insulation frame interference fit. Fill the cladding groove with laser cladding powder, and form the cladding area 7 through laser cladding. The cladding area connects the heat insulation frame and the bearing into one piece. Then, place the integrated microsystem into the heat insulation frame 4, and then install the copper cover 6 on the outside of the embedding groove 2.

[0026] The method in this embodiment embeds the sensing element into the outer wall of the bearing without affecting the overall structure of the bearing. The copper cover design ensures that the part with the embedding groove will not be underweight, thus ensuring the smooth operation of the bearing. There will be an electrical connection between the sensing element 3 and the heat insulation frame 4. The simplest way is to insert the pins of the sensing element 3 into the heat insulation frame 4, so that the sensing element 3 and the heat insulation frame 4 can be made into an integral structure. Alternatively, they can be separate structures. The integrated microsystem in the heat insulation frame needs to be electrically connected to the pins. In order to ensure that the laser cladding will not affect the integrated microsystem, it is best to separate the integrated microsystem 5 from the heat insulation frame. It is then fastened into the heat insulation frame 4 by subsequent welding or bolts.

[0027] Example 2

[0028] Compared to Example 1, this example specifically discloses a method for processing the embedded groove, including the following steps:

[0029] Step 1: First, mark lines on the bearing according to the dimensions of the heat insulation frame and the copper cover;

[0030] Step 2: First, machine the smaller part of the embedding groove through rough milling and finish milling. Then, machine the larger part of the embedding groove through rough milling. Next, machine the cladding groove through rough milling. Finally, machine the larger part of the embedding groove through finish milling. Use a φ12 cutter for rough milling and a φ6 cutter for finish milling. The finish milling allowance is 1mm. The milling cutter speed is 700 rpm, the longitudinal feed is 23.5mm / min, the transverse feed is 15mm / min, and the vertical feed is 8mm / min.

[0031] The overall depth of the machined embedding groove is 12mm. The small-sized part is 30*30mm in size and 7mm in depth. The sensing element is 1mm thick. The bottom and side thicknesses of the heat insulation frame are both 1mm. The thickness of the integrated Microsoft is within 5mm. The depth of the large-sized part of the embedding groove is 5mm, and the length and width are 45*45mm. The size of the machined embedding groove and the sensing element installed in the embedding groove is almost negligible compared to the size of the bearing. Moreover, through the design of the copper cover, the counterweight of this part can be adjusted to a certain extent. Therefore, the embedded sensing element will not affect the normal operation of the bearing. It can monitor various data of the bearing in real time, such as vibration, temperature and strain information, to achieve intelligent monitoring of the bearing.

[0032] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. An embedding method for in-situ manufacturing of bearing sensing elements, characterized in that, Includes the following steps: Step 1: Prepare the sensitive element for detecting vibration, temperature and strain information, the heat insulation frame that matches the sensitive element, the integrated microsystem placed inside the heat insulation frame, and the copper cover; Step 2: Based on the dimensions of the copper cap and the heat insulation frame, create a stepped embedding groove on the bearing moving ring that is larger at the top and smaller at the bottom; Step 3: Place the sensitive element at the bottom of the embedding slot, then place the heat insulation frame at the bottom of the embedding slot and align the top of the heat insulation frame with the stepped portion of the embedding slot. Next, place the integrated microsystem inside the heat insulation frame, and then install the copper cap on the outside of the embedding slot.

2. The embedding method for in-situ manufacturing of the bearing sensing element according to claim 1, characterized in that, The lower part of the embedded groove is interference-fitted with the heat insulation frame.

3. The embedding method for in-situ manufacturing of the bearing sensing element according to claim 2, characterized in that, An inverted conical cladding groove is provided at the step of the embedded groove. The lower part of the cladding groove exceeds the height of the sensitive element after installation. After the heat insulation frame is installed, laser cladding powder is filled into the cladding groove. A cladding area is formed by laser cladding, and the heat insulation frame and bearing are connected as one unit through the cladding area.

4. The embedding method for in-situ manufacturing of the bearing sensing element according to claim 3, characterized in that, The machining method for the embedded groove includes the following steps: Step 1: First, mark lines on the bearing according to the dimensions of the heat insulation frame and the copper cover; Step 2: Use milling to machine the scribed part of the bearing to create an embedding groove with a cladding groove.

5. The embedding method for in-situ manufacturing of the bearing sensing element according to claim 4, characterized in that, The stepped embedding groove is machined in two passes: rough milling and finish milling. A φ12 tool is used for rough milling, and a φ6 tool is used for finish milling. The finish milling allowance is 1mm.

6. The embedding method for in-situ manufacturing of the bearing sensing element according to claim 5, characterized in that, The milling cutter speed is 700 rpm, the longitudinal feed is 23.5 mm / min, the transverse feed is 15 mm / min, and the vertical feed is 8 mm / min.

7. The embedding method for in-situ manufacturing of the bearing sensing element according to claim 5, characterized in that, In step 2, the smaller part of the embedding groove is first machined by rough milling and finish milling, then the larger part of the embedding groove is machined by rough milling, then the cladding groove is machined by rough milling, and finally the larger part of the embedding groove is machined by finish milling.

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