Steel support with low friction coefficient

Abstract

The utility model discloses a steel support with a low friction coefficient, which relates to the technical field of engineering of bridges, buildings and the like and comprises an upper support plate and a lower support plate. The spherical crown lining plate is arranged below the upper support plate, the upper surface of the spherical crown lining plate is a plane, the lower surface of the spherical crown lining plate is a spherical surface, a spherical stainless steel plate is arranged on the spherical surface, a plane sliding plate is arranged on the upper surface of the spherical crown lining plate, and the plane sliding plate makes contact with the plane stainless steel plate; the lower support plate is arranged below the spherical crown lining plate, the upper surface of the lower support plate is matched with the lower surface of the spherical crown lining plate, a spherical sliding plate is arranged on the upper surface of the lower support plate, and the spherical sliding plate is in contact with the spherical stainless steel plate; wherein the surfaces of the planar stainless steel plate and the spherical stainless steel plate are respectively provided with a low-friction-coefficient spraying layer. Due to the fact that the low-friction-coefficient spraying coatings are arranged on the surfaces of the plane stainless steel plate and the spherical stainless steel plate, the problem that a traditional steel support is large in friction coefficient in the sliding process is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the engineering technical field of bridge, building etc. BACKGROUND

[0002] In the existing engineering structure such as bridge, large building, support is the important part of connecting upper structure and lower structure, its function is to deliver the load of upper structure to lower structure, and allows the displacement and rotation of upper structure in certain range, to adapt to the deformation caused by temperature change, concrete shrinkage and creep, earthquake and other factors.

[0003] The common steel support at present mainly includes fixed support, one-way sliding support and multi-way sliding support etc. These traditional steel supports have the following problems in the working process:

[0004] Wear problem: due to the direct friction between metals, the surface of friction pair is easy to produce wear in the long-term use process. Wear not only can further increase the friction coefficient, but also can reduce the service life of support, increases the maintenance cost. When wear reaches a certain degree, the displacement and rotation function of support can not be realized normally, and the safety of the whole engineering structure is threatened.

[0005] Lubrication maintenance difficulty: in order to reduce the friction coefficient, some existing steel supports adopt the way of adding lubricant regularly. However, in the actual engineering environment, especially for the support in some large bridge or high-rise building, the operation of adding lubricant is difficult, and it is difficult to ensure that the lubricant can be uniformly distributed on the surface of friction pair. In addition, the lubricant is easy to lose, be contaminated or deteriorate in the long-term use process, so as to lose the lubricating effect, and cannot continuously and effectively reduce the friction coefficient. INVENTION CONTENTS

[0006] Therefore, the utility model provides a low friction coefficient steel support, aims at solving the problems of high friction coefficient, serious wear and lubrication maintenance difficulty of existing steel support, improves the performance and service life of steel support in engineering structure, reduces the internal force transmission loss and maintenance cost of structure, and ensures that the support can effectively realize the displacement and rotation function under normal use and special working condition.

[0007] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] The utility model provides a low friction coefficient steel support, which comprises:

[0009] The bottom surface of the upper support plate is provided with a plane stainless steel plate.

[0010] A spherical cap lining plate is arranged below the upper support plate, and the upper surface of the spherical cap lining plate is a plane, the lower surface is a spherical surface, and a spherical surface stainless steel plate is arranged on the spherical surface; the upper surface of the spherical cap lining plate is provided with a plane sliding plate, and the plane sliding plate is in contact with the plane stainless steel plate;

[0011] A lower support plate is arranged below the spherical cap lining plate, the upper surface of the lower support plate is matched with the lower surface of the spherical cap lining plate, and the upper surface of the lower support plate is provided with a spherical surface sliding plate, and the spherical surface sliding plate is in contact with the spherical surface stainless steel plate;

[0012] The surface of the plane stainless steel plate and the spherical surface stainless steel plate is provided with a low friction coefficient spraying layer.

[0013] According to the low friction coefficient steel support, the upper surface of the spherical cap lining plate has a plane embedding groove, the plane sliding plate is embedded in the plane embedding groove, and the upper surface of the plane sliding plate protrudes out of the plane embedding groove.

[0014] According to the low friction coefficient steel support, the upper surface of the lower support plate has a spherical surface embedding groove, the spherical surface sliding plate is embedded in the spherical surface embedding groove, and the upper surface of the spherical surface sliding plate protrudes out of the spherical surface embedding groove.

[0015] According to the low friction coefficient steel support, the area of the plane stainless steel plate is greater than the area of the plane sliding plate, and the plane stainless steel plate completely covers the plane sliding plate.

[0016] According to the low friction coefficient steel support, the area of the spherical surface stainless steel plate is greater than the area of the spherical surface sliding plate, and the spherical surface stainless steel plate completely covers the spherical surface sliding plate.

[0017] According to the low friction coefficient steel support, the thickness of the low friction coefficient spraying layer is 20-80 microns.

[0018] Compared with the prior art, the low friction coefficient steel support provided by the utility model has the advantages of small friction coefficient, wear resistance, superior fatigue resistance, simple structure, reasonable structure, stable performance, long service life, and wide application in the field of shock isolation and shock absorption of bridges and building structures, and can be flexibly designed according to different design requirements to meet the performance requirements under different seismic levels. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described below are only part of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0020] Figure 1 The structure schematic diagram of the low-friction coefficient steel support provided by the present application is shown in the figure.

[0021] Figure 2 The connection structure schematic diagram of the upper support plate and the plane stainless steel plate provided by the present application is shown in the figure.

[0022] Figure 3 The connection structure schematic diagram of the spherical cap lining plate and the spherical stainless steel plate provided by the present application is shown in the figure.

[0023] Figure 4 The connection structure schematic diagram of the spherical cap lining plate and the spherical stainless steel plate provided by the present application is shown in the figure. Figure 3 The partial enlarged view of I.

[0024] In the figure, 1 is an upper support plate, 2 is a plane stainless steel plate, 3 is a plane sliding plate, 4 is a spherical cap lining plate, 5 is a spherical stainless steel plate, 6 is a spherical sliding plate, 7 is a lower support plate, and 8 is a low-friction coefficient spraying layer. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] Referring to Figures 1-4 The embodiments of the present application disclose a low-friction coefficient steel support, which comprises: an upper support plate 1, a spherical cap lining plate 4, and a lower support plate 7.

[0027] The bottom surface of the upper support plate 1 is provided with a plane stainless steel plate 2. The upper support plate 1 is made of ordinary steel plate or cast steel; the plane stainless steel plate 2 is fixed or welded on the lower surface of the upper support plate 1 by screws, and the plane stainless steel plate 2 is the main sliding component of the support.

[0028] The spherical cap lining plate 4 is arranged below the upper support plate 1, the upper surface of the spherical cap lining plate 4 is a plane, the lower surface is a spherical surface, and a spherical surface stainless steel plate 5 is arranged on the spherical surface, the upper surface of the spherical cap lining plate 4 is provided with a plane sliding plate 3, and the plane sliding plate 3 is in contact with the plane stainless steel plate 2. The spherical cap lining plate 4 is the main rotating part of the support and is made of a steel plate or a casting; the plane sliding plate 3 is the main sliding part of the support and is a polytetrafluoroethylene plate or a modified polytetrafluoroethylene plate or a modified ultra-high molecular weight polyethylene plate or other low-friction coefficient material and has no grease storage groove on the surface; the spherical surface stainless steel plate 5 is fixed or welded on the spherical surface of the spherical cap lining plate 4 by screws, and the spherical surface stainless steel plate 5 is the main rotating part of the support.

[0029] The lower support plate 7 is arranged below the spherical cap lining plate 4, the upper surface of the lower support plate 7 is matched with the lower surface of the spherical cap lining plate 4, and the upper surface of the lower support plate 7 is provided with a spherical surface sliding plate 6 in contact with the spherical surface stainless steel plate 5. The lower support plate 7 is made of a common steel plate or cast steel; the spherical surface sliding plate 6 is the main rotating part of the support and is also a polytetrafluoroethylene plate or a modified polytetrafluoroethylene plate or a modified ultra-high molecular weight polyethylene plate or other low-friction coefficient material and has no grease storage groove on the surface.

[0030] The surfaces of the plane stainless steel plate 2 and the spherical surface stainless steel plate 5 are provided with a low-friction coefficient spraying layer 8. Specifically, the forming process of the low-friction coefficient spraying layer 8 is as follows: first, the surfaces of the plane stainless steel plate 2 and the spherical surface stainless steel plate 5 are subjected to appropriate cleaning treatment, the surfaces of the plane stainless steel plate 2 and the spherical surface stainless steel plate 5 are wiped with alcohol, and after being wiped clean, the surfaces are rubbed with a grinding wheel to ensure that the surfaces have no obvious scratches and protrusions and the surface adhesion is enhanced. After completion, the surface dust is blown off with an air gun, and the surface is wiped with a dry cloth. Then, low-friction coefficient paint is sprayed on the surfaces of the plane stainless steel plate 2 and the spherical surface stainless steel plate 5. Specifically, the low-friction coefficient paint is lubricating paint, preferably, fluorocarbon resin-based lubricating paint, and in other embodiments, the low-friction coefficient paint can also be Teflon paint; after the low-friction coefficient paint is sprayed on the steel plate, the steel plate is sintered in an oven at 80-200°C for not less than 30 minutes. The low-friction coefficient paint sprayed on the plane stainless steel plate 2 and the spherical surface stainless steel plate 5 forms the low-friction coefficient spraying layer 8, the thickness of the low-friction coefficient spraying layer 8 is 20-80μm, and the thickness of the low-friction coefficient spraying layer 8 can be selected according to specific needs.

[0031] The utility model provides a low friction coefficient steel support, through being provided with low friction coefficient spraying layer 8 on the surface of plane stainless steel sheet 2 and spherical surface stainless steel sheet 5, the problem that the friction coefficient of traditional steel support is big in the sliding process is solved, the low friction coefficient steel support provided by the utility model has the advantages of small friction coefficient, wear resistance, superior fatigue resistance and the like, the low friction coefficient steel support provided by the utility model is simple in structure, reasonable in structure, stable in performance, long in service life and wide in application in the field of shock insulation and shock absorption of bridge and building structure, is suitable for spherical steel support, basin support, friction swing support and the like, and the friction coefficient can be designed flexibly according to different design needs, thereby meeting the performance demand under different earthquake horizontal action.

[0032] In further embodiments, the upper surface of the spherical crown lining plate 4 has a plane embedding groove, the plane sliding plate 3 is embedded in the plane embedding groove, and the upper surface of the plane sliding plate 3 protrudes from the plane embedding groove. In this way, the upper support plate 1 and the spherical crown lining plate 4 slide relative to each other through the contact surface of the plane stainless steel sheet 2 and the plane sliding plate 3, ensuring the smoothness of the relative sliding between the two.

[0033] In further embodiments, the upper surface of the lower support plate 7 has a spherical surface embedding groove, the spherical surface sliding plate 6 is embedded in the spherical surface embedding groove, and the upper surface of the spherical surface sliding plate 6 protrudes from the spherical surface embedding groove. In this way, the spherical crown lining plate 4 and the lower support plate 7 rotate relative to each other through the contact surface of the spherical surface stainless steel sheet 5 and the spherical surface sliding plate 6, ensuring the smoothness of the relative rotation between the two.

[0034] In further embodiments, the area of the plane stainless steel sheet 2 is greater than the area of the plane sliding plate 3, and the plane stainless steel sheet 2 completely covers the plane sliding plate 3. This ensures that the plane sliding plate 3 can fully contact the plane stainless steel sheet 2, reducing the friction coefficient between the upper surface of the upper support plate 1 and the plane of the spherical crown lining plate 4.

[0035] According to the low friction coefficient steel support provided by the utility model, the area of the spherical surface stainless steel sheet 5 is greater than the area of the spherical surface sliding plate 6, and the spherical surface stainless steel sheet 5 completely covers the spherical surface sliding plate 6. This ensures that the spherical surface sliding plate 6 can fully contact the spherical surface stainless steel sheet 5, reducing the friction coefficient between the spherical surface of the lower support plate 7 and the spherical crown lining plate 4.

[0036] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts of each embodiment can be referred to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0037] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A low coefficient of friction steel bearing characterized by, The application relates to a ball bearing, which comprises the following parts: an upper support plate, the bottom surface of which is provided with a flat stainless steel plate; a spherical cap lining plate, which is arranged below the upper support plate, the upper surface of the spherical cap lining plate is flat, the lower surface is spherical, a spherical stainless steel plate is arranged on the spherical surface, the upper surface of the spherical cap lining plate is provided with a flat sliding plate, and the flat sliding plate is in contact with the flat stainless steel plate; a lower support plate, which is arranged below the spherical cap lining plate, the upper surface of the lower support plate is matched with the lower surface of the spherical cap lining plate, and the upper surface of the lower support plate is provided with a spherical sliding plate, which is in contact with the spherical stainless steel plate; wherein the surfaces of the flat stainless steel plate and the spherical stainless steel plate are provided with low-friction coefficient spraying layers.

2. The low coefficient of friction steel bearing of claim 1, wherein, The upper surface of the spherical cap lining plate is provided with a flat embedding groove, the flat sliding plate is embedded in the flat embedding groove, and the upper surface of the flat sliding plate protrudes from the flat embedding groove.

3. Steel bearing with low coefficient of friction according to claim 1 or 2, characterized in that The upper surface of the lower support plate is provided with a spherical embedding groove, the spherical sliding plate is embedded in the spherical embedding groove, and the upper surface of the spherical sliding plate protrudes from the spherical embedding groove.

4. The low coefficient of friction steel bearing of claim 1, wherein, The area of the flat stainless steel plate is larger than that of the flat sliding plate, and the flat stainless steel plate completely covers the flat sliding plate.

5. The low coefficient of friction steel bearing of claim 1, wherein, The area of the spherical stainless steel plate is larger than that of the spherical sliding plate, and the spherical stainless steel plate completely covers the spherical sliding plate.

6. The low coefficient of friction steel bearing of claim 1, wherein, The thickness of the low-friction coefficient spraying layer is 20-80 mu m.

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