A machining method of a concave surface support plate, the concave surface support plate and a spherical support

Abstract

This invention provides a processing method for a concave surface support plate, the concave surface support plate, and a spherical support. The method includes: forming multiple receiving grooves on the concave surface substrate of the support plate; coating an adhesive on a mirror stainless steel plate, the concave surface, and the receiving grooves; positioning and fixing the mirror stainless steel plate and the concave surface, then heating it, whereby the adhesive melts upon heating and flows along the concave surface to fill it, forming an adhesive bonding layer. This adhesive bonding layer seamlessly connects the mirror stainless steel plate to the concave surface. The above solution provided by this invention achieves seamless bonding between the adhesive bonding layer and the concave surface of the support plate and the mirror stainless steel plate, avoiding deformation and hollow areas of the mirror stainless steel plate, thus ensuring the firmness of the mirror stainless steel plate, improving the rotation and wear resistance of the entire spherical support product, and reducing product maintenance and repair costs.

Description

Technical Field

[0001] This invention relates to the field of bearing technology, specifically to a method for processing a concave bearing plate, the concave bearing plate, and a spherical bearing. Background Technology

[0002] In the construction industry, supports are frequently used to bear pressure and transfer horizontal forces on beams to accommodate horizontal displacement and rotation caused by external factors. For example... Figure 1 and Figure 2 As shown, the spherical bearing currently in use includes an upper bearing plate 1, a spherical crown liner 2, and a lower bearing plate 3.

[0003] exist Figure 1 In the structure shown, the upper and lower surfaces of the spherical crown liner 2 are made of carbon steel clad with stainless steel wear-resistant plates, and mirror-finish stainless steel plates are welded into the concave surfaces of the upper support plate 1 and the lower support plate 3. Figure 2 In the structure shown, the upper surface of the spherical crown liner 2 is made of carbon steel covered with stainless steel wear-resistant plate, and a mirror stainless steel plate is welded in the concave surface of the upper support plate 1. The lower surface of the spherical crown liner 2 is also made of welded mirror stainless steel plate, and a stainless steel wear-resistant plate is welded in the concave surface of the lower support plate 3. In the above scheme, the mirror stainless steel plate and the conventional stainless steel plate form a friction pair.

[0004] In the above structure, when the curved mirror stainless steel is placed on the concave surface of the support plate for welding, the thickness of the curved stainless steel is very thin, only 1-5mm. The heat input during welding is too large, and a large amount of heat cannot be dissipated. This leads to the deformation of the curved stainless steel and the problem of the stainless steel being pushed out by the hot air and firmly connected to the concave surface of the support plate. This reduces the rotation and wear resistance of the product and greatly increases the maintenance and repair costs of the product. Summary of the Invention

[0005] The present invention aims to provide a processing method for a concave surface support plate, a concave surface support plate, and a spherical support, so as to solve the problem of poor connection firmness when welding arc-shaped stainless steel plates to support plates in the prior art.

[0006] Therefore, some embodiments of the present invention provide a method for processing a concave surface support plate, comprising the following steps:

[0007] Multiple receiving grooves are opened on the concave surface base of the support plate;

[0008] An adhesive is applied to the mirror-finished stainless steel plate, the concave surface, and the receiving groove;

[0009] After the mirror stainless steel plate is positioned and fixed to the concave surface, it is heated. The adhesive is heated and melts, flowing along the concave surface to fill it and form an adhesive bonding layer. The adhesive bonding layer enables the mirror stainless steel plate to be seamlessly connected to the concave surface.

[0010] The processing method of the concave surface support plate provided in some embodiments of the present invention includes the step of forming multiple receiving grooves on the concave surface substrate of the support plate, which includes: processing a recessed layer on the concave surface substrate of the support plate; and forming multiple receiving grooves on the recessed layer.

[0011] In some embodiments of the present invention, the processing method for a concave surface support plate includes a step of processing a recessed layer on the concave surface substrate of the support plate, wherein the depth of the recessed layer is 1-3 mm.

[0012] In some embodiments of the present invention, a method for processing a concave support plate is provided. In the step of opening multiple receiving grooves on the concave layer, the receiving grooves are arc-shaped grooves, toothed grooves, or cylindrical grooves, and the receiving grooves are evenly distributed on the surface of the concave layer; the depth of each receiving groove is 1-3 mm, and the maximum length of the opening of each receiving groove is less than 5 mm; the distance between adjacent receiving grooves is 80-110 mm.

[0013] In some embodiments of the present invention, the processing method of the concave support plate includes a step of coating an adhesive on the mirror stainless steel plate, the concave surface, and the receiving groove, wherein the coating thickness of the adhesive is 0.1-1 mm, and the receiving groove is filled with the adhesive.

[0014] The processing method of the concave support plate provided in some embodiments of the present invention further includes, before applying adhesive to the mirror stainless steel plate, the concave surface and the receiving groove, a step of cleaning the mirror stainless steel plate and the concave surface with a cleaning solution and then air-drying them.

[0015] In some embodiments of the present invention, the processing method of the concave support plate includes the step of heating after positioning and fixing the mirror stainless steel plate and the concave surface. After positioning and fixing the mirror stainless steel plate and the concave surface with a tooling fixture, the plate is placed in a vacuum device. After adding a counterweight of 10-50 kg to the upper part of the stainless steel plate, the vacuum device is evacuated to perform the heating operation.

[0016] In some embodiments of the present invention, the processing method of the concave surface support plate includes a step of heating the mirror stainless steel plate after positioning and fixing it with the concave surface. The heating temperature is 900℃~1300℃. After the adhesive melts and fills the concave surface, the plate is kept at a constant temperature for 480~840 minutes. Then, an inert gas is filled for cooling.

[0017] In some embodiments of the present invention, a concave surface support plate is provided, which is prepared by the processing method of the concave surface support plate described in any of the above embodiments.

[0018] In some embodiments of the present invention, a spherical support is provided, comprising an upper support plate, a spherical crown liner, and a lower support plate connected in sequence, wherein the upper support plate and / or the lower support plate are concave surface support plates as described in the above embodiments.

[0019] The technical solution provided by this invention has at least the following advantages compared with the prior art: Multiple receiving grooves are processed on the concave surface of the support plate. When adhesive is applied to the mirror stainless steel plate, the concave surface, and the receiving grooves, the receiving grooves can be filled with adhesive. When connecting the mirror stainless steel plate and the concave surface, only heating the adhesive is needed to allow the melted adhesive to flow throughout the concave surface, thus filling the entire concave surface. Applying pressure to the mirror stainless steel plate achieves a seamless connection between the mirror stainless steel plate and the concave surface of the support plate substrate. Compared with the welding operation of the prior art, this solution can achieve a seamless bond between the adhesive bonding layer and the concave surface of the support plate and the mirror stainless steel plate, avoiding deformation and hollow areas of the mirror stainless steel plate, thereby ensuring the firmness of the mirror stainless steel plate, improving the rotation and wear resistance of the entire spherical bearing product, and reducing the maintenance and repair costs of the product. Attached Figure Description

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] Figure 1 This is a schematic diagram of a spherical support in the prior art.

[0022] Figure 2 This is a schematic diagram of another spherical support in the prior art;

[0023] Figure 3 This is a flowchart illustrating the process steps of a method for processing a concave surface support plate according to an embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of the support plate according to one embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the support plate according to another embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the spherical support according to one embodiment of the present invention;

[0027] Figure 7 for Figure 6 Enlarged schematic diagram of section I;

[0028] Figure 8 for Figure 6 Enlarged schematic diagram of Part II;

[0029] Figure 9 This is a schematic diagram of the spherical support according to another embodiment of the present invention;

[0030] Figure 10 for Figure 9 Enlarged schematic diagram of Part III;

[0031] Figure 11 for Figure 9 Enlarged schematic diagram of the middle IV section. Detailed Implementation

[0032] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this invention and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] In some embodiments of this embodiment, a method for processing a concave surface support plate is provided; in other embodiments, a concave surface support plate obtained using this processing method is provided. Specifically, as shown... Figure 3 and Figure 4 As shown, the method includes the following steps:

[0035] Step 1: Process a recessed layer 25 on the concave surface substrate 21 of the support plate.

[0036] Step 2: Create multiple receiving grooves 24 on the recessed layer 25.

[0037] Step 3: Apply adhesive to the surface of the mirror stainless steel plate 23, the recessed layer, and the receiving groove 24.

[0038] Step 4: After positioning and fixing the mirror stainless steel plate 23 and the recessed layer 25, heat it. The adhesive melts after being heated and flows along the recessed layer 25 to fill the recessed layer 25 and form an adhesive bonding layer 22. The adhesive bonding layer 22 makes the mirror stainless steel plate 23 and the recessed layer 25 seamlessly connected.

[0039] The concave support plate obtained by the above method is... Figure 4 In the structure shown, the thickness of the adhesive bonding layer 22 obtained in the above scheme is less than 2.5 mm, for example, 1 mm. The adhesive includes solder paste or platinum, and a drying operation is required after coating. The mirror stainless steel plate 23 can be pre-formed by cold pressing of stainless steel plate.

[0040] The above-described solution of the present invention, by providing a receiving groove 24, can hold more adhesive. Even if some adhesive is squeezed out when pressure is applied to the mirror stainless steel plate 23, the receiving groove 24 can continue to provide adhesive, allowing the adhesive to fill the entire recessed layer, ultimately forming an adhesive bonding layer 22 covering the entire recessed layer. The adhesive bonding layer 22 has high adhesion to the concave surface of the substrate 21 and the mirror stainless steel plate 23, with a large bonding area, and the mirror stainless steel plate 23 will not tear. Furthermore, after testing and verification, the adhesion strength between the mirror stainless steel plate 23 and the concave surface in the above solution is between 100MPa and 500MPa. In contrast, the existing technical solution only has a perimeter weld between the stainless steel and carbon steel, with no connection strength in other areas. In comparison, this solution can achieve seamless bonding between the adhesive bonding layer 22 and the concave layer 25 of the support plate and the mirror stainless steel plate 23, avoiding deformation and hollowing of the mirror stainless steel plate 23, thereby ensuring the firmness of the mirror stainless steel plate 23, improving the rotation and wear resistance of the entire spherical bearing product, and reducing the maintenance and repair costs of the product.

[0041] Furthermore, in step one above, the depth of the recessed layer 25 is 1-3mm, which can be obtained by milling. Using this solution, it is equivalent to fitting the mirror-finished stainless steel plate 23 tightly inside the recessed layer 25. The recessed layer 25 can further protect the mirror-finished stainless steel plate 23, thereby improving the connection stability of the mirror-finished stainless steel plate 23.

[0042] In some embodiments of the present invention, the processing method of the concave surface support plate, in step two, the receiving groove 24 is an arc-shaped groove, a toothed groove, or a cylindrical groove, and the receiving groove 24 is evenly distributed on the surface of the recessed layer 25. The shape of the receiving groove 24 is not particularly limited; the above-mentioned conventional groove structure facilitates processing. Further, the depth of each receiving groove is 1-3 mm, and the maximum length of the opening of each receiving groove is less than 5 mm; the distance between adjacent receiving grooves is 80-110 mm. In some preferred embodiments, the receiving groove 24 can be selected as a cylindrical groove with a diameter of 3 mm and a depth of 2 mm, and the distance between adjacent receiving grooves 24 is 90 mm. This can improve service life and vibration damping and wear resistance while ensuring adhesion.

[0043] In some embodiments of the present invention, the processing method of the concave support plate includes a step three in which the adhesive coating thickness is 0.1-1 mm, and the adhesive in the receiving groove 24 is completely filled. Because the receiving groove 24 is filled with adhesive, it ensures that the heated adhesive can cover the entire concave surface. Furthermore, before applying the adhesive, the method includes a step of cleaning the surfaces of the mirror stainless steel plate 23 and the concave layer 25 with a cleaning solution followed by air drying. The cleaning solution can be alcohol or acetone, and the air drying process can be natural air drying, thereby ensuring that the adhesive performance of the adhesive is maximized.

[0044] In some embodiments, in step four of the above scheme, after the mirror stainless steel plate 23 and the recessed layer 25 are positioned and fixed using a tooling fixture, they are placed in a vacuum device. A counterweight of 10-50 kg is added to the upper part of the stainless steel plate 23, and then the vacuum device is evacuated to perform a heating operation. The tooling fixture is made of ceramic, carbon steel, etc. Preferably, in this step, the heating temperature is 900℃~1300℃. After the adhesive melts and fills the recessed layer, it is kept at this temperature for 480~840 minutes, and then cooled by filling with an inert gas, which can be nitrogen or argon.

[0045] The concave support plate prepared by the above method is as follows: Figure 4 As shown, as one feasible approach, the recessed layer 25 can be omitted from the concave surface of the concave support plate, and the receiving groove 24 can be directly machined onto the concave surface, resulting in the structure shown below. Figure 5As shown, the concave support plate includes a substrate 21, an adhesive bonding layer 22, and a mirror-finished stainless steel plate 23. The substrate 21 has a concave surface with multiple receiving grooves 24, which are used to coat an adhesive and the adhesive fills the receiving grooves 24. The mirror-finished stainless steel plate 23 is attached to the surface of the adhesive. After the adhesive is heated, an adhesive bonding layer 22 is formed between the mirror-finished stainless steel plate 23 and the concave surface, and the adhesive bonding layer 22 bonds the mirror-finished stainless steel plate 23 to the concave surface of the substrate 21. In this embodiment, the concave support plate has multiple receiving grooves 24 on the concave surface of the base 21. The receiving grooves 24 can be filled with adhesive. When the mirror stainless steel plate 23 is connected to the concave surface, it is only necessary to heat the adhesive to make the melted adhesive flow throughout the concave surface and fill the entire concave surface. Applying pressure to the mirror stainless steel plate 23 during connection can achieve a seamless connection between the mirror stainless steel plate 23 and the concave surface of the base 21.

[0046] In some embodiments of the present invention, a spherical support is also provided, such as... Figures 6 to 8 As shown, the spherical support includes an upper support plate, a spherical crown liner, and a lower support plate connected in sequence. The upper support plate and / or the lower support plate are concave surface support plates as described in any of the above embodiments, i.e., at least one of the upper support plate and the lower support plate. Figure 4 or Figure 5 The concave support plate shown in the example (in the example) Figure 4 (The structure shown is used as an example for illustration). As shown in the figure, both the upper and lower support plates have receiving grooves 24 in their concave surfaces, and the mirror stainless steel plate 23 is bonded to the concave surfaces by adhesive bonding layers 23. Based on this, the spherical crown liner includes a spherical core 10 and first wear-resistant plates 11 respectively disposed on the upper and lower surfaces of the spherical core 10. Figure 6 The final structure of the adhesive bonding layer 22 is shown, which includes protrusions corresponding to the shape of the receiving groove 24.

[0047] In other embodiments of the present invention, a spherical support is also provided, such as... Figure 9 Zhihe Figure 11 As shown, the system includes an upper support plate, a spherical crown liner, and a lower support plate connected in sequence. The upper support plate is a concave surface support plate as described in any of the above embodiments. The spherical crown liner includes a spherical core 10, the upper surface of which is provided with a first wear-resistant plate 11 that mates with the mirror-finished stainless steel plate 23 in the upper support plate, and the lower surface of which is provided with a mirror-finished arc-shaped stainless steel plate 13. The lower support plate base 31 has an arc-shaped surface that mates with the lower surface of the spherical crown liner, and a second wear-resistant plate 32 is provided on the arc-shaped surface. The second wear-resistant plate 32 and the mirror-finished arc-shaped stainless steel plate 13 form a mating friction pair.

[0048] More preferably, the lower surface of the spherical core 10 of the spherical crown liner is provided with a plurality of grooves 14. The lower surface of the spherical core 10 and the interior of the plurality of grooves 14 are coated or filled with an adhesive, which may be a platinum solder paste. The mirror-finished arc-shaped stainless steel plate 13 is attached to the surface of the adhesive. After the adhesive is heated, a composite adhesive layer 12 is formed between the mirror-finished arc-shaped stainless steel plate 13 and the lower surface of the spherical core 10. The composite adhesive layer 12 bonds the mirror-finished arc-shaped stainless steel plate 13 and the lower surface of the spherical core 10 together. Preferably, in the spherical support described in the above embodiment, the grooves 14 are arc-shaped grooves, toothed grooves, or cylindrical grooves, and the grooves 14 are evenly distributed on the lower surface of the spherical core 10; the depth of each groove 14 is 1-5 mm, and the maximum length of the opening of each groove is less than 5 mm; the distance between adjacent grooves is 30-100 mm. In some preferred embodiments, the groove 14 can be a cylindrical groove with a depth of 2mm and a diameter of 1.5mm, and the spacing between adjacent grooves 14 is 55mm. This can improve the service life and wear resistance of the support while ensuring the adhesion.

[0049] Specifically, the connection between the mirror-finished curved stainless steel plate 13 and the lower surface of the spherical core 10 can be achieved in the following way:

[0050] An adhesive is applied or filled into the grooves and arc-shaped surfaces on the lower surface of the ball core 10, with a coating thickness of 0.01-5 mm, and the grooves 14 are filled with adhesive. After coating, the adhesive needs to be dried. The mirror-finished arc-shaped stainless steel plate 13 is pre-formed by cold pressing of stainless steel plate and then assembled onto the lower surface of the ball core 10 coated with adhesive. The mirror-finished arc-shaped stainless steel plate 13 is pressed tightly against the lower surface of the ball core 10 using a clamping device. The clamping fixture is made of ceramic, carbon steel, etc. After heating the adhesive in a vacuum environment, the adhesive melts and flows along the lower surface of the ball core 10. Moreover, since more adhesive is filled in the grooves 14, it can be ensured that the adhesive covers the entire lower surface of the ball core 10, ultimately forming a composite adhesive layer 12. In this embodiment, the thickness of the final composite adhesive layer 12 is less than 5 mm, preferably less than 2.5 mm. In the above scheme, the composite adhesive layer 12 has high adhesion to the lower surface of the ball core 10 and the mirror-finished curved stainless steel plate 13, with a large bonding area, and the mirror-finished curved stainless steel plate 13 will not tear. Furthermore, experimental verification shows that the bonding structure between the mirror-finished curved stainless steel plate 13 and the lower surface of the ball core 10 in the above scheme is stable, with a minimum adhesion strength of 100 MPa and a maximum of 500 MPa.

[0051] The spherical support provided by the above solution can achieve seamless bonding between the substrate and the stainless steel plate, avoiding deformation and hollowing of the stainless steel plate, ensuring the firmness of the stainless steel plate, effectively solving the problem of stainless steel falling off due to stress fatigue, corrosion and other reasons at the welded parts, and reducing the maintenance and repair costs of the product.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for processing a concave surface support plate, characterized in that, Includes the following steps: Multiple receiving grooves are formed on the concave surface of the support plate; including: processing a recessed layer on the concave surface of the support plate; forming multiple receiving grooves on the recessed layer; the depth of the recessed layer is 1-3mm; the receiving grooves are arc-shaped grooves, toothed grooves or cylindrical grooves, and the receiving grooves are evenly distributed on the surface of the recessed layer; the depth of each receiving groove is 1-3mm, and the maximum length of the opening of each receiving groove is less than 5mm; the distance between adjacent receiving grooves is 80-110mm. An adhesive is applied to the mirror-finished stainless steel plate, the concave surface, and the receiving groove; the adhesive coating thickness is 0.1-1 mm, and the receiving groove is filled with the adhesive; the adhesive includes solder paste or platinum, and a drying operation is performed on the adhesive after coating is completed; After the mirror stainless steel plate is positioned and fixed to the concave surface, it is heated. The adhesive melts upon heating and flows along the concave surface to fill it and form an adhesive bonding layer. The adhesive bonding layer enables a seamless connection between the mirror stainless steel plate and the concave surface. In the step of positioning and fixing the mirror stainless steel plate to the concave surface and then heating, the heating temperature is 900℃~1300℃. After the adhesive melts and fills the concave surface, it is kept at this temperature for 480~840 minutes, and then cooled by filling with inert gas.

2. The processing method of the concave surface support plate according to claim 1, characterized in that: The step of applying adhesive to the mirror stainless steel plate, the concave surface, and the receiving groove includes, before applying the adhesive, a step of cleaning the mirror stainless steel plate and the concave surface with a cleaning solution and then air-drying them.

3. The processing method of the concave surface support plate according to claim 1 or 2, characterized in that: In the step of heating after positioning and fixing the mirror stainless steel plate and the concave surface, the mirror stainless steel plate and the concave surface are positioned and fixed using tooling fixtures and then placed in a vacuum device. After adding a counterweight of 10-50Kg to the upper part of the mirror stainless steel plate, the vacuum device is evacuated to perform the heating operation.

4. A concave surface support plate, characterized in that, The concave surface support plate is prepared by the processing method of the concave surface support plate according to any one of claims 1-3.

5. A spherical support, characterized in that, It includes an upper support plate, a spherical crown liner plate, and a lower support plate connected in sequence, wherein the upper support plate and / or the lower support plate is the concave surface support plate as described in claim 4.

Images