RU215182U1 - SPHERICAL STEEL SUPPORT - Google Patents

Abstract

The utility model relates to the field of bridge engineering. The spherical steel bearing part contains an upper anchor plate, a fixing element, a flat wear plate, an upper bearing plate, a ball segment, a spherical wear plate, a lower bearing plate and a lower anchor plate. The upper anchor plate and the upper base plate are firmly connected to each other; the upper anchor plate in the lower part is provided with the first groove, and the upper base plate in the upper part is provided with the second groove; the fixing element is installed in the first groove and the second groove and is connected to the upper anchor plate and the upper base plate by welding or bolts. Compared with the prior art, since the spherical steel support part of the present utility model uses a locking member firmly fixed in the first groove and the second groove, the fixing member can securely position the upper anchor plate and the upper base plate in the longitudinal direction of the bridge, which prevents their separation from each other; The present utility model facilitates construction work, shortens construction time, reduces construction cost, is safe and reliable, and has wide applicability.

Description

Technical field

The present utility model relates to the field of bridge engineering, and in particular it relates to a spherical steel bearing.

State of the art

With the growth of modern high-speed rail, rail transport and road networks, bridge construction is rapidly developing, and spherical steel bearing parts, which can be used for significant tilt control, are important elements in the bridge structure, which during the entire life of the bridge take up loads. from the beams in its upper part and at the same time must also provide rotation and the possibility of adjusting the inclination of the beam.

In the existing spherical steel bearings, the tilt adjustment is mainly carried out in the following two ways: one of them is to cast wedge-shaped blocks at the bottom of the beam with the bearing horizontally installed; with this method, the support part is able to easily absorb forces, but the need to separately provide wedge-shaped blocks at the bottom of the beam will increase the complexity of the construction work, while in the case of beams with a variable slope, in particular prefabricated beams, it is very difficult to carry out in-line construction work; increasing the time for completion of work; and the cost goes up. Another way is that instead of wedge-shaped blocks to control the slope, steel sheets are laid under the bottom of the beam; this method is more suitable for cast-in-place and fixed-slope beams, but the steel plates embedded under the beams, which require significant slope adjustment, usually need to be very thick, which will increase the cost significantly, while in the case of beams with a variable slope, in particular prefabricated beams, it is also very difficult to carry out in-line construction work; increasing the time for completion of work; and the cost goes up.

CN 208167509 U discloses an energy-absorbing and energy-dissipating spherical support with a beam fall prevention function, which is the closest analogue of the claimed utility model. The support comprises an uppermost base plate, an upper base plate, a middle base plate, a lower base plate, a lowermost base plate, an E-type damping element, and a viscous damper. The lower surface of the uppermost base plate is provided with a longitudinal displacement limiting structure, the two longitudinal sides of the uppermost base plate are respectively provided with an E-type damping member, the bottom surface of the lower base plate is provided with a lateral displacement limiting structure, and the two sides of the lower base plate a viscous damper is accordingly provided; or the lower surface of the uppermost base plate is provided with a lateral displacement limiting structure, the two sides of the uppermost base plate are respectively provided with an E-type damping element, the bottom surface of the lower base plate is provided with a longitudinal displacement limiting structure on the two longitudinal sides of the lower base plate accordingly, a viscous damper is provided, and wherein the cylindrical body of the viscous damper is connected to the longitudinal side wall of the lower base plate. However, this support has the following disadvantages: the support mainly solves the problem of seismic isolation in long-term areas with high intensity and poor site conditions when using long-span flexible structures, and also prevents the beam from falling; at the same time, the support is not suitable for conventional bridges in areas with low seismic activity; located between the uppermost base plate and the upper base plate, the structure limiting the displacement in one direction is an unprotected element that allows a change in function in case of damage; the two contact surfaces of the uppermost, upper, lower and lowermost plates are flat friction pairs that allow displacement and cannot be built into the height adjustment platform; in the event of a stop block failure, the five main parts will have four moving surfaces, which may cause slipping.

In this regard, the development and production of spherical steel bearings, which facilitate construction work and are suitable for conventional bridges in areas of low seismic activity, are particularly important in the production of steel bearings.

The essence of the utility model

The purpose of the present utility model is to provide a spherical steel bearing part that facilitates construction work, and can reduce the complexity of construction work, shorten construction time, reduce construction cost while ensuring the stability and reliability of the position in the longitudinal direction of the bridge, is safe and reliable, and also has a wide applicability.

This utility model is implemented through the following technical solution:

A spherical steel bearing part which comprises an upper anchor plate, a locking element, a flat wear plate, an upper bearing plate, a ball segment, a spherical wear plate, a lower bearing plate, and a lower anchor plate; the upper anchor plate and the upper base plate are firmly connected to each other, while the upper anchor plate in the lower part is provided with a first groove, the upper base plate in the upper part is provided with a second groove, and the locking element is located in the first groove and the second groove and is connected to the upper anchor plate. plate and top base plate by welding or bolting; the ball segment on the upper surface is provided with a mounting groove; a flat wear-resistant plate is placed in the mounting groove; the upper base plate is slidable relative to the flat wear plate; the bottom base plate and the bottom anchor plate are firmly connected to each other; the lower base plate in the upper part is provided with a spherical recess; the spherical wear plate is placed in the spherical recess; the ball segment is configured to roll relative to the spherical wear plate.

In addition, the ball segment contains the main part and the mating part; the main part and the mating part are firmly connected to each other; the mating part interacts with the spherical wear plate while rolling; the surface roughness of the mating part is less than or equal to 0.8 µm.

In addition, the mating part on the side remote from the main part is provided with a spherical mating surface; the spherical mating surface interacts with the spherical wear plate; the range of the central angle of the spherical mating surface is from 35 degrees to 40 degrees.

In addition, the main body is made of Q355 steel, cast steel, stainless steel or aluminum alloy; the mating part is made of stainless steel, nickel-phosphorus alloy, chromium or aluminum alloy.

In addition, when the main part and the mating part are made of aluminum alloy, the yield strength of the specified ball segment is greater than or equal to 250 MPa.

In addition, when the body is made of Q355 steel and when the mating part is made of nickel-phosphorus alloy, the thickness of the mating part is greater than or equal to 30 µm.

In addition, the bottom base plate on the side surface is provided with an annular groove; the annular groove is designed to reduce weight.

In addition, the upper base plate and the lower base plate are made of Q355 steel, ZGS10CrNiCu cast steel, ZGS10Cr3NiCu cast steel, or ZGS10Cr5NiCu cast steel.

In addition, layers of anti-corrosion coating are applied on the surfaces of the upper base plate and the lower base plate; the anti-corrosion coating layers comprise a bottom paint layer, an intermediate paint layer and a top paint layer in succession; the bottom paint layer and the intermediate paint layer are nanocomposite paint coatings, and the top paint layer is a fluorocarbon finish paint; the thickness of the lower ink layer, the intermediate ink layer and the upper ink layer is in the range of 40 µm to 80 µm.

In addition, the spherical steel support further comprises upper anchor steel bars and lower anchor steel bars; the upper anchor steel bars are firmly connected to the upper anchor plate, and the lower anchor steel bars are firmly connected to the lower anchor plate; the upper anchor steel bars and the lower anchor steel bars on the circumferential surface are provided with several annular recesses made at regular intervals; the depth of the annular grooves is less than or equal to 10 mm.

The spherical steel bearing provided by the present utility model has the following beneficial effects:

In the spherical steel base part proposed by the present utility model, the top anchor plate and the top base plate are firmly connected to each other, the top anchor plate at the bottom is provided with a first groove, the top base plate at the top is provided with a second groove, and the fixing member located in the first slot and the second slot and connected to the upper anchor plate and the upper base plate by welding or bolts; the ball segment on the upper surface is provided with a mounting groove; a flat wear-resistant plate is placed in the mounting groove; the upper base plate is slidable relative to the flat wear plate; the bottom base plate and the bottom anchor plate are firmly connected to each other; the lower base plate in the upper part is provided with a spherical recess; the spherical wear plate is placed in the spherical recess; the ball segment is configured to roll relative to the spherical wear plate. Compared with the prior art, since the spherical steel support part of the present utility model uses a locking member firmly fixed in the first groove and the second groove, the fixing member can securely position the upper anchor plate and the upper base plate in the longitudinal direction of the bridge, which prevents their separation from each other; The present utility model facilitates construction work, shortens construction time, reduces construction cost, is safe and reliable, and has wide applicability.

Description of attached graphics

In order to provide a more understandable description of the technical solution in the embodiments of the present utility model, a simple description of the attached drawings to be used in the embodiments will be presented below; it should be understood that the accompanying drawings below show only some embodiments of the present utility model, therefore these drawings should not be construed as limiting the scope, and based on these attached drawings, specialists in the art without creative efforts can also obtain other related attached graphics.

Figure 1 shows a schematic representation of the construction of a spherical steel bearing, proposed according to the embodiments of the present utility model;

Fig. 2 is an enlarged view of area II in Fig. 1;

Figure 3 is a schematic representation of the design of the connection of the upper anchor plate with the upper base plate by means of a locking element in a spherical steel base proposed according to embodiments of the present utility model;

figure 4 shows a schematic representation of the design of the ball segment in a spherical steel bearing, proposed according to the embodiments of the present utility model;

Fig. 5 is a schematic representation of the construction of a lower base plate in a spherical steel base proposed according to embodiments of the present utility model.

The figures show: 100 - spherical steel bearing; 110 - top anchor plate; 111 - first groove; 120 - fixing element; 130 - flat wear plate; 140 - upper base plate; 141 - second groove; 150 - ball segment; 151 - mounting groove; 152 - the main part; 153 - mating part; 154 - spherical mating surface; 155 - first annular groove; 160 - spherical wear plate; 170 - lower base plate; 171 - spherical recess; 172 - annular groove; 173 - second annular groove; 180 - bottom anchor plate; 190 - upper anchor steel bar; 191 - annular undercut; 200 - lower anchor steel bar; 210 - the first bolt; 220 - second bolt; 230 - the first sealing ring; 240 - the second sealing ring.

Specific implementation method

In order to make the objectives, technical solutions and advantages of the embodiments of this utility model more clear, below with reference to the attached graphics in the embodiments of this utility model, a clear and complete description of the technical solutions according to the embodiments of this utility model will be presented; of course, the considered embodiments are part of the embodiments of the present utility model, and not all of its embodiments. The components of the embodiments of the present utility model, usually presented and displayed in the accompanying graphics, can be located and designed in different configurations.

Therefore, the following detailed description of the embodiments of the present utility model presented in the accompanying drawings is not at all intended to limit the scope of the claimed protection of the present utility model and serves only to represent selected embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without the application of creative efforts are included in the scope of protection of the present utility model.

It should be noted that similar numbers and letters in the attached drawings indicate similar elements, therefore, if the definition of one element presented in one attached figure is given, then this element shown in subsequent attached figures does not need to be further defined and explained.

It should be noted that in the description of the present utility model, the direction or spatial distribution indicated by using the words "inner", "outer", "upper", "lower", "horizontal", etc., represent the direction or spatial distribution, indicated according to the accompanying graphics, or represent a direction or spatial distribution regarding the location of products according to this utility model in use, while they are provided only for convenience and simplicity of describing this utility model and do not indicate or mean that the indicated device or elements are necessarily must be directed in a certain way, as well as be arranged or applied in a certain direction, so they should not be construed as limiting the present utility model. In addition, the words "first", "second", "third", etc. are intended only to differentiate the description and should not be understood as indicating or implying relative importance.

It should also be noted that throughout the description of this utility model, unless otherwise specifically defined and stated, the words "install", "mate", "mount" and "connect" must be understood in a broad sense: for example, there may be a rigid connection, and can also be a connection with the possibility of detachment or connection as a whole; there may be a mechanical connection, and there may also be an electrical connection; there may be a direct connection, and there may also be an indirect, indirect connection; and there can be a message inside two elements. The specific meaning of the above words regarding the present utility model will be clear to those skilled in the art in specific cases.

Below, with reference to the accompanying drawings, a detailed description of several embodiments of the present utility model is presented. In the absence of conflicts, the features in the following embodiments may be combined with each other.

First Embodiment:

As shown in Fig. 1, Fig. 2 and Fig. 3, according to this embodiment of the present utility model, a spherical steel bearing portion 100 is provided for bearing loads from beams at the top of a bridge. It facilitates construction work, can reduce the complexity of construction work, shorten the construction time, reduce the cost of construction work while ensuring the stability and reliability of the position in the longitudinal direction of the bridge, is safe and reliable, and has a wide applicability.

The spherical steel bearing portion 100 includes a top anchor plate 110, a locking member 120, a flat wear plate 130, an upper base plate 140, a ball segment 150, a spherical wear plate 160, a bottom base plate 170, a bottom anchor plate 180, an upper anchor steel bars 190, and lower anchor steel bars 200. In this case, the upper anchor plate 110, the upper base plate 140, the flat wear plate 130, the ball segment 150, the spherical wear plate 160, the lower base plate 170, and the lower anchor plate 180 are arranged sequentially from top to bottom; the upper anchor steel bars 190 are installed at the top of the upper anchor plate 110, and the lower anchor steel bars 200 are installed at the bottom of the lower anchor plate 180; the locking member 120 is installed between the top anchor plate 110 and the top base plate 140. Specifically, the top anchor steel bars 190 and the top anchor plate 110 are integrally integrated with each other and embedded in the bottom surface of a beam (not shown) to provide support beam; the lower anchor plate 180 and the lower anchor steel bars 200 are integrally integrated with each other and embedded in the bridge abutment truss (not shown) to rest on the bridge abutment truss.

It should be noted that the upper anchor plate 110 and the upper base plate 140 are firmly connected to each other; the upper anchor plate 110 is provided with a first slot 111 at the bottom, and the upper base plate 140 is provided with a second slot 141 at the top; the fixing member 120 is installed in the first slot 111 and the second slot 141 and is connected to the upper anchor plate 110 and the upper base plate 140 by welding or bolts. The locking member 120 is firmly fixed in the first slot 111 and the second slot 141 to determine the relative position of the first slot 111 and the second slot 141 in the longitudinal direction of the bridge, thereby limiting the relative position of the upper anchor plate 110 and the upper base plate 140 and preventing the upper anchor plate 110 from sliding. relative to the upper base plate 140. In this embodiment, the upper anchor plate 110 and the upper base plate 140 are firmly connected to each other by the first bolts 210 to increase the strength of the connection of the upper anchor plate 110 to the upper base plate 140.

It should be noted that the ball segment 150 on the upper surface is provided with a mounting groove 151; flat wear plate 130 is placed in the mounting groove 151; the mounting groove 151 can fix the relative position of the flat wear plate 130 and the ball segment 150 to prevent the flat wear plate 130 from sliding relative to the ball segment 150. The upper base plate 140 can slide relative to the flat wear plate 130, and since the flat wear plate 130 has good wear resistance, the flat wear plate 130 can extend the overall service life of the spherical steel bearing portion 100.

In addition, the ball segment 150 on the upper surface is also provided with the first annular groove 155; the first annular groove 155 is formed around the mounting groove 151; the first sealing ring 230 is installed in the first annular groove 155; the first sealing ring 230 is made protruding from the first annular groove 155, and abuts against the upper base plate 140; the ball segment 150, the first sealing ring 230 and the upper base plate 140 in combination with each other form the first sealed cavity (not shown in the figures); a flat wear plate 130 is located in the first sealed cavity.

In addition, the bottom base plate 170 is provided with a spherical recess 171 at the top; the spherical wear plate 160 is placed in the spherical recess 171; the spherical recess 171 can fix the relative position of the spherical wear plate 160 and the lower base plate 170 to prevent the spherical wear plate 160 from sliding relative to the lower base plate 170. The ball segment 150 can roll relative to the spherical wear plate 160, and since the spherical wear plate 160 has good wear resistance, then the spherical wear plate 160 can extend the overall service life of the spherical steel bearing portion 100.

In addition, the spherical recess 171 on the side wall is provided with a second annular groove 173; the second annular groove 173 is circular; inside the second annular groove 173, a second sealing ring 240 is installed; the second sealing ring 240 is made protruding from the second annular groove 173 and adjacent to the ball segment 150; the bottom base plate 170, the second O-ring 240, and the ball segment 150, in combination with each other, form a second sealed cavity (not shown in the figures); the spherical wear plate 160 is located in the second sealed cavity.

It should be noted that the bottom base plate 170 and the bottom anchor plate 180 are firmly connected to each other to fix the relative position of the bottom base plate 170 and the bottom anchor plate 180, preventing the bottom base plate 170 from sliding relative to the bottom anchor plate 180. In this embodiment, the bottom base plate the plate 170 and the bottom anchor plate 180 are firmly connected to each other by the second bolts 220 to improve the bonding strength of the bottom base plate 170 and the bottom anchor plate 180.

It should be noted that the upper anchor steel bars 190 are firmly connected to the upper anchor plate 110, and the lower anchor steel bars 200 are firmly connected to the lower anchor plate 180. The upper anchor steel bars 190 and the lower anchor steel bars 200 are provided with several annular grooves 191 on the circumferential surface. made at equal intervals, while the depth of the annular grooves 191 is less than or equal to 10 mm. In particular, the annular grooves 191 on the top anchor steel bars 190 can increase the area of contact with the beam, thereby increasing the strength of the connection of the top anchor steel bars 190 with the beam; the annular grooves 191 on the lower anchor steel bars 200 can increase the area of contact with the bridge abutment truss, thereby increasing the bonding strength of the lower anchor steel bars 200 to the bridge abutment truss.

As shown in Fig.4, the ball segment 150 includes the main part 152 and the mating part 153. On the side of the main part 152, remote from the mating part 153, is made of the installation groove 151; the main body 152 and the mating part 153 are firmly connected to each other, while the mating part 153 covers the spherical surface of the main part 152, and the mating part 153 cooperates with the spherical wear plate 160 while rolling; the mating part 153 has good wear resistance and can extend the overall service life of the spherical steel bearing part 100. In particular, the mating part 153 has a surface roughness of less than or equal to 0.8 µm to reduce the friction force between the mating part 153 and the spherical wear plate 160. In this embodiment. The mating portion 153 has a surface roughness of 0.8 μm, but the utility model is not limited to this, and in other embodiments, the mating portion 153 may have a surface roughness of 0.6 μm, and may also be 0.5 μm, and the surface roughness of the mating Part 153 is not specifically limited.

In addition, the mating part 153 on the side remote from the main part 152 is provided with a spherical mating surface 154 and interacts with the spherical mating surface 160 through the spherical mating surface 154. In particular, the spherical mating surface 154 has a central angle range of 35 degrees to 40 degrees. degrees. In this embodiment, the spherical mating surface 154 has a central angle of 38 degrees, but the utility model is not limited to this, and in other embodiments, the spherical mating surface 154 may have a central angle of 35 degrees, and may also be 40 degrees, and the central angle of the spherical interface 154 is not specifically limited. In addition, the radius of the spherical mating surface 154 is determined based on the plan size of the flat wear plate 130 and the central angle of the spherical mating surface 154 using a trigonometric function, and is also not specifically limited.

Note that the main body 152 is made of Q355 steel, cast steel, stainless steel, or aluminum alloy; the mating portion 153 is made of stainless steel, nickel-phosphorus alloy, chromium alloy or aluminum alloy. In this embodiment, the main body 152 is made of Q355 steel and the mating part 153 is made of stainless steel, and the ball segment 150 is a structure obtained by covering the spherical surface of Q355 steel with a stainless steel sliding plate.

As shown in FIG. 5, in this embodiment, the bottom base plate 170 is provided with an annular groove 172 on the side surface, and the annular groove 172 is designed to reduce weight, thereby reducing the weight of the bottom base plate 170 without affecting the ability of the bottom base plate 170 to receive effort, and reduce the cost.

In this embodiment, the upper base plate 140 and the lower base plate 170 are made of Q355 steel, but the utility model is not limited to this, and in other embodiments, the upper base plate 140 and the lower base plate 170 can also be made of ZGS10CrNiCu cast steel, can also be made of cast steel ZGS10Cr3NiCu, and may also be made of cast steel ZGS10Cr5NiCu, while the material for manufacturing the upper base plate 140 and the lower base plate 170 is not particularly limited.

In this embodiment, the surfaces of the upper base plate 140 and the lower base plate 170 are coated with anti-corrosion coatings (not shown in the figures) to prevent external corrosion of the upper base plate 140 and lower base plate 170 and to prolong the life of the spherical steel bearing portion 100. B in particular, the anti-corrosion coating layers comprise a bottom paint layer, an intermediate paint layer and a top paint layer arranged in succession. The bottom paint layer and the intermediate paint layer are nanocomposite paint coatings, and the top paint layer is a fluorocarbon finish paint. The thickness of the lower ink layer, the intermediate ink layer and the upper ink layer is in the range of 40 µm to 80 µm.

In the spherical steel base part 100 proposed according to this embodiment of the present utility model, the top anchor plate 110 and the top base plate 140 are firmly connected to each other, while the top anchor plate 110 is provided with the first groove 111 at the bottom, the top base plate 140 in the upper part is provided with a second groove 141, and the locking member 120 is installed in the first groove 111 and the second groove 141 and is connected to the upper anchor plate 110 and the upper base plate 140 by welding or bolts; the ball segment 150 on the top surface is provided with a mounting groove 151, the flat wear plate 130 is placed in the mounting slot 151, and the upper base plate 140 can be slid relative to the flat wear plate 130; the lower base plate 170 and the lower anchor plate 180 are firmly connected to each other, while the lower base plate 170 is provided with a spherical recess 171 in the upper part, the spherical wear plate 160 is placed in the spherical recess 171, and the ball segment 150 can roll relative to the spherical wear plate 160 Compared with the prior art, since the spherical steel support portion 100 of the present utility model uses the locking member 120 firmly fixed in the first slot 111 and the second slot 141, the locking member 120 can be securely positioning the upper anchor plate 110 and the upper base plate 140 in the longitudinal direction of the bridge to prevent them from separating from each other; The present utility model facilitates construction work, shortens construction time, reduces construction cost, is safe and reliable, and has wide applicability.

Second embodiment:

In this embodiment of the present utility model, a spherical steel support portion 100 is proposed, and this embodiment differs from the first embodiment in that cast steel is selected as the material for the body portion 152 instead of Q355 steel.

In this embodiment, the main body 152 is formed using low temperature resistant and weather resistant cast steel, and the mating portion 153 is made of stainless steel, the ball segment 150 being a structure obtained by covering a spherical surface of cast steel with a sliding plate of of stainless steel.

With the spherical steel support portion 100 proposed in this embodiment of the present utility model, the benefits are the same as those of the first embodiment, so they will not be discussed here.

Third embodiment:

In this embodiment of the present utility model, a spherical steel support portion 100 is proposed, and this embodiment differs from the first embodiment in that nickel-phosphorus alloy is selected as the material for the mating portion 153 instead of stainless steel.

In this embodiment, the main body 152 is made using Q355 steel, and the mating part 153 is made using a nickel-phosphorus alloy, and the ball segment 150 is a structure obtained by electroplating a spherical surface of Q355 steel with a nickel-phosphorus alloy layer. In particular, the mating portion 153 has a thickness greater than or equal to 30 μm, good wear resistance and long service life.

With the spherical steel support portion 100 proposed in this embodiment of the present utility model, the benefits are the same as those of the first embodiment, so they will not be discussed here.

Fourth Embodiment:

In this embodiment of the present utility model, a spherical steel support portion 100 is proposed, and this embodiment differs from the first embodiment in that chromium is selected as the material for the mating portion 153 instead of stainless steel.

In this embodiment, the main body 152 is made using Q355 steel, and the mating part 153 is made using chromium, and the ball segment 150 is a structure obtained by electroplating a spherical surface of Q355 steel with a layer of chromium.

With the spherical steel support portion 100 proposed in this embodiment of the present utility model, the benefits are the same as those of the first embodiment, so they will not be discussed here.

Fifth Embodiment:

In this embodiment of the present utility model, a spherical steel support portion 100 is proposed, and this embodiment differs from the first embodiment in that stainless steel is selected as the material for the base portion 152 instead of Q355 steel.

In this embodiment, the main body 152 is made of stainless steel and the mating part 153 is made of stainless steel, so the ball segment 150 is an all-stainless steel structure.

With the spherical steel support portion 100 proposed in this embodiment of the present utility model, the benefits are the same as those of the first embodiment, so they will not be discussed here.

Sixth Embodiment:

In this embodiment of the present utility model, a spherical steel support portion 100 is proposed, and this embodiment differs from the first embodiment in that instead of steel Q355, an aluminum alloy is selected as the material for manufacturing the main portion 152, and instead of stainless steel, as a material for manufacturing mating part 153 selected aluminum alloy.

In this embodiment, the main body 152 is made of an aluminum alloy and the mating part 153 is made of an aluminum alloy, so the ball segment 150 is an all-aluminum alloy structure. In particular, the ball segment 150 has a yield strength greater than or equal to 250 MPa, which prolongs the service life.

With the spherical steel support portion 100 proposed in this embodiment of the present utility model, the benefits are the same as those of the first embodiment, so they will not be discussed here.

The foregoing are only preferred embodiments of the present utility model, so it is not intended to limit the present utility model, and various changes and modifications may be made to the present utility model by those skilled in the art. Any changes, equivalent replacements, modifications, etc., made without departing from the essence and principles of this utility model, should be included in the scope of protection of this utility model.

Claims (10)

1. A spherical steel bearing part, characterized in that it comprises an upper anchor plate, a locking element, a flat wear plate, an upper bearing plate, a ball segment, a spherical wear plate, a lower bearing plate, and a lower anchor plate; said upper anchor plate and said upper base plate are firmly connected to each other, wherein said upper anchor plate is provided with a first groove in its lower part, said upper base plate is provided with a second groove in its upper part, and said locking element is located in said first groove and said the second groove and is connected with the specified upper anchor plate and the specified upper base plate by welding or bolts; the specified ball segment on the upper surface is provided with a mounting groove; the specified flat wear plate is placed in the specified mounting groove; said upper base plate is slidable relative to said flat wear plate; said lower base plate and said lower anchor plate are firmly connected to each other; the specified lower base plate in the upper part is provided with a spherical recess; said spherical wear plate is placed in said spherical recess; said ball segment is configured to roll relative to said spherical wear plate. 2. Spherical steel bearing part according to claim 1, characterized in that said ball segment contains a main part and a mating part; said body and said mating portion are firmly connected to each other; the specified mating part is made with the possibility of interaction with the specified spherical wear plate when rolling; the surface roughness of said mating part is less than or equal to 0.8 µm. 3. Spherical steel support part according to claim 2, characterized in that said mating part on the side remote from said main part is provided with a spherical mating surface; said spherical mating surface is configured to interact with said spherical wear plate; the range of the central angle of the specified spherical mating surface is from 35 degrees to 40 degrees. 4. The spherical steel bearing part according to claim 2, wherein said body is made of Q355 steel, cast steel, stainless steel, or aluminum alloy; said mating part is made of stainless steel, nickel-phosphorus alloy, chromium or aluminum alloy. 5. A spherical steel support part according to claim 4, characterized in that when said main part and said mating part are made of aluminum alloy, the yield strength of said spherical segment is greater than or equal to 250 MPa. 6. A spherical steel bearing part according to claim 4, characterized in that when said main part is made of Q355 steel and when said mating part is made of nickel-phosphorus alloy, the thickness of said mating part is greater than or equal to 30 µm. 7. A spherical steel base according to claim 1, characterized in that said lower base plate is provided with an annular groove on the side surface, said annular groove being intended to reduce weight. 8. The spherical steel base according to claim 1, characterized in that said upper base plate and said lower base plate are made of Q355 steel, ZGS10CrNiCu cast steel, ZGS10Cr3NiCu cast steel, or ZGS10Cr5NiCu cast steel. 9. Spherical steel bearing part according to claim 1, characterized in that layers of anti-corrosion coating are applied on the surfaces of said upper base plate and said lower base plate; these layers of anti-corrosion coating contain sequentially located the lower layer of paint, the intermediate layer of paint and the top layer of paint; said bottom paint layer and said intermediate paint layer are nanocomposite paint coatings, and said top paint layer is a fluorocarbon finish paint; the thickness of said lower ink layer, said intermediate ink layer and said upper ink layer is in the range of 40 µm to 80 µm. 10. Spherical steel bearing part according to claim 1, characterized in that said spherical steel bearing part further comprises upper anchor steel bars and lower anchor steel bars; said upper anchor steel bars are firmly connected to said upper anchor plate, and said lower anchor steel bars are firmly connected to said lower anchor plate; said upper anchor steel bars and said lower anchor steel bars on the circumferential surface are provided with a plurality of annular grooves at regular intervals; the depth of said annular grooves is less than or equal to 10 mm.

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