Fixing device for rubber supports of various standards and specifications

Abstract

The invention discloses a multi-standard and multi-specification rubber support fixing device, and relates to the technical field of rubber support fixing equipment.The multi-standard and multi-specification rubber support fixing device comprises an upper support fixing plate and a lower support fixing plate, the upper support fixing plate is rotationally connected to an upper foundation mounting plate of a testing machine, and the lower support fixing plate is rotationally connected to a lower foundation mounting plate of the testing machine; the lower support fixing plate is rotationally connected to a lower foundation mounting plate of the testing machine, a rubber support is fixed between the upper support fixing plate and the lower support fixing plate, and a plurality of adjusting sliding grooves are formed in the sides, close to the rubber support, of the upper support fixing plate and the lower support fixing plate. A plurality of adjusting nuts are connected into each adjusting sliding groove in a sliding mode, a plurality of support fixing screw holes are formed in each adjusting nut, and the support connecting holes of the support connecting plate on the rubber support are connected with the support fixing screw holes through support fixing bolts. The device can be used for fixing rubber supports of different standards and different sizes, frequent replacement is not needed, and therefore the detection efficiency can be improved.

Description

Technical Field

[0001] This invention relates to the field of rubber bearing fixing equipment, and in particular to a rubber bearing fixing device of various specifications. Background Technology

[0002] As the requirements for seismic performance of building and bridge structures become increasingly stringent, the performance requirements for seismic isolation rubber bearings are also rising, consequently placing higher demands on the testing instruments and equipment for rubber bearings. Most existing rubber bearings consist of a central rubber body and connecting plates at both ends. The fixing holes on the connecting plates are arranged in various ways, including four holes at four corners, eight holes at four corners, and uniformly spaced holes. Each arrangement produces different hole spacings depending on the bearing size, resulting in a vast number of possible combinations of layouts and hole spacings.

[0003] Currently, the performance testing of rubber bearings is generally conducted using a compression-shear testing machine. This requires fixing the upper and lower connecting plates of the rubber bearing to the upper and lower base mounting plates in the compression-shear testing machine. Existing compression-shear testing machines have base mounting plates with fixed module connection holes or T-slot holes. When dealing with rubber bearings of different sizes and hole distributions, different transition plates are needed for transition or the base mounting plates need to be replaced directly.

[0004] The problem is that even with the above solution, the number of transition plates with different numbers of connection holes is still large, although the number is reduced, resulting in a waste of resources. Furthermore, hoisting inside the compression-shear testing machine is generally inconvenient, and the disassembly and assembly of the transition plates and foundation mounting plates are cumbersome and inefficient, which is not conducive to the continuous and efficient operation of factory testing.

[0005] Therefore, there is an urgent need in this field for a rubber bearing fixing device with multiple specifications to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a rubber bearing fixing device with multiple specifications to solve the problems existing in the prior art. It can be applied to fixing rubber bearings of different specifications and sizes without frequent replacement, thereby improving the efficiency of testing.

[0007] To achieve the above objectives, the present invention provides the following solution: This invention discloses a rubber bearing fixing device with various specifications, including an upper bearing fixing plate and a lower bearing fixing plate. The upper bearing fixing plate is rotatably connected to the upper base mounting plate of the testing machine, and the lower bearing fixing plate is rotatably connected to the lower base mounting plate of the testing machine. A rubber bearing is fixed between the upper bearing fixing plate and the lower bearing fixing plate. Both the upper bearing fixing plate and the lower bearing fixing plate have several adjusting grooves on the side near the rubber bearing. Several adjusting nuts are slidably connected in each adjusting groove. Each adjusting nut has several bearing fixing screw holes. The bearing connecting hole of the bearing connecting plate of the rubber bearing is connected to the bearing fixing screw holes through bearing fixing bolts.

[0008] Preferably, both the upper support fixing plate and the lower support fixing plate are disc structures.

[0009] Preferably, each of the adjusting grooves is radially distributed outward from the center of the upper support fixing plate and the lower support fixing plate.

[0010] Preferably, all the adjusting slides are divided into single-hole groups and double-hole groups, each single-hole group includes one adjusting slide, and each double-hole group includes two adjusting slides.

[0011] Preferably, both the single-hole group and the double-hole group are provided in four groups, and the single-hole group and the double-hole group are distributed alternately.

[0012] Preferably, each of the adjusting grooves is slidably connected to an adjusting nut, and each adjusting nut is provided with two support fixing screw holes.

[0013] Preferably, the upper support fixing plate and the lower support fixing plate are provided with a central through hole, a connecting bolt passes through the central through hole, the connecting bolt on the upper support fixing plate is threadedly connected to the upper foundation mounting plate of the testing machine, and the connecting bolt on the lower support fixing plate is threadedly connected to the lower foundation mounting plate of the testing machine. A first thrust bearing is provided between the end of the connecting bolt and the end of the central through hole of the fixing plate.

[0014] Preferably, a gravity balance mounting seat is provided on the upper surface of the upper support fixing plate and the lower surface of the lower support fixing plate. The connecting bolt passes through the gravity balance mounting seat. A second thrust bearing and a disc spring are sleeved on the outside of the connecting bolt. A gravity balance cavity is provided inside the gravity balance mounting seat. The second thrust bearing and the disc spring are both located inside the gravity balance cavity.

[0015] Preferably, the adjusting groove is a T-groove, and the adjusting nut is a T-nut.

[0016] Preferably, both the upper support fixing plate and the lower support fixing plate are made of carbon structural steel.

[0017] The present invention achieves the following technical effects compared to the prior art: This invention allows for the adjustment of the distribution of the fixing screw holes on the supports by adjusting the sliding of the nuts within the adjusting grooves, thus adapting to different types and sizes of rubber supports. It eliminates the need for frequent replacement of the upper or lower support fixing plates, significantly improving testing efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the rubber bearing fixing device of various specifications in this invention when connecting the four-corner four-hole rubber bearing; Figure 2 This is a schematic diagram of the structure of the rubber bearing fixing device of various specifications in this invention when connecting the four-corner eight-hole rubber bearing; Figure 3 This is a schematic diagram of the lower support fixing plate in various types and specifications of rubber support fixing devices according to embodiments of the present invention; Figure 4 This is a cross-sectional view of various standard specifications of rubber bearing fixing devices according to embodiments of the present invention; Figure 5 This is a partial enlarged view of the gravity balance mounting base in various types and specifications of rubber bearing fixing devices according to embodiments of the present invention; In the diagram: 1-Upper support fixing plate; 2-Lower support fixing plate; 3-Adjusting slide; 4-Adjusting nut; 5-Rubber support; 6-Gravity balance mounting base; 7-Connecting bolt; 8-First thrust bearing; 9-Disc spring; 10-Second thrust bearing. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The purpose of this invention is to provide a rubber bearing fixing device with multiple specifications to solve the problems existing in the prior art. It can be applied to fixing rubber bearings of different specifications and sizes without frequent replacement, thereby improving the efficiency of testing.

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1-5 As shown, this embodiment provides a fixing device for rubber bearings 5 ​​of various specifications, including an upper bearing fixing plate 1 and a lower bearing fixing plate 2 with identical structures. The upper bearing fixing plate 1 is rotatably connected to the upper base mounting plate of the testing machine, while the lower bearing fixing plate 2 is rotatably connected to the lower base mounting plate of the testing machine. An existing compression-shear testing machine can be used as the testing machine. A rubber support 5 is fixed between the upper support fixing plate 1 and the lower support fixing plate 2. In order to install rubber supports 5 of different sizes, the upper support fixing plate 1 and the lower support fixing plate 2 are provided with several adjusting grooves 3 on the side near the rubber support 5. The number and distribution of each adjusting groove 3 are not limited here. Several adjusting nuts 4 are slidably connected in each adjusting groove 3, and several support fixing screw holes are provided on each adjusting nut 4. A support connecting plate is fixed on both the upper and lower sides of the rubber support 5. The support connecting hole of the support connecting plate on the rubber support 5 is connected to the support fixing screw hole through the support fixing bolt, that is, the support fixing bolt passes through the support connecting hole and is threadedly connected to the support fixing screw hole.

[0024] In actual use, first install the upper support fixing plate 1 and the lower support fixing plate 2 onto the corresponding upper and lower base mounting plates on the testing machine, respectively. Then, roughly adjust the position of each adjusting bolt in the adjusting groove 3, and rotate the upper support fixing plate 1 and the lower support fixing plate 2 as needed to make the support fixing screw holes in each adjusting nut 4 basically correspond to the support connection holes on the rubber support 5. Then place the rubber support 5. If there is still some deviation between the support fixing screw holes in the adjusting nut 4 and the support connection holes on the rubber support 5, the position of the adjusting nut 4 can be finely adjusted again to make the support fixing screw holes in the adjusting nut 4 correspond one-to-one with the support connection holes on the rubber support 5. Finally, fix the two together with the support fixing bolts.

[0025] In this embodiment, both the upper support fixing plate 1 and the lower support fixing plate 2 are disc structures. Of course, those skilled in the art can also change them to square, rectangular or other shapes, and are not limited to circles.

[0026] In this embodiment, as Figure 3 As shown, each adjusting groove 3 is radially distributed outward from the center of the upper support fixing plate 1 and the lower support fixing plate 2, that is, evenly distributed in the circumferential direction. However, it should be noted that each adjusting groove 3 is not evenly distributed, that is, the included angle or spacing between any two adjacent adjusting grooves 3 is not necessarily the same. The purpose of this setting is to make it applicable to different types of rubber supports 5.

[0027] In other embodiments, the adjusting slides 3 can also be distributed in a staggered pattern, i.e., a grid-like layout. Of course, the adjusting slides 3 can also be arranged in other ways, as long as the adjusting nut 4 can slide along the adjusting slide 3 to the desired position. Therefore, the distribution of the adjusting slides 3 is not unique.

[0028] In this embodiment, as Figure 3 As shown, all the adjusting slides 3 can be divided into two types: single-hole groups and double-hole groups. Each single-hole group includes one adjusting slide 3, while each double-hole group includes two adjusting slides 3, and the two adjusting slides 3 in each double-hole group are arranged parallel to each other.

[0029] The reason for this setting is that, for example Figures 1-2 As shown, Figure 1 Each corner of the support connecting plate of the rubber bearing 5 is provided with a support connecting hole, so it can be used to connect the adjusting nut 4 in the adjusting groove 3 in the single hole group; Figure 2 The rubber support 5 has two support connection holes at each corner of the support connection plate, so it can be used to connect the corresponding adjusting nuts 4 in the two adjusting grooves 3 in the double hole group.

[0030] In this embodiment, as Figure 3 As shown, there are four groups of both single-hole groups and double-hole groups, and the single-hole groups and double-hole groups are staggered, that is, the included angle between adjacent single-hole groups and double-hole groups is 45°.

[0031] When the four-corner four-hole rubber bearing 5 is removed and the eight-corner rubber bearing 5 needs to be installed, the upper bearing fixing plate 1 and the lower bearing fixing plate 2 need to be rotated together by 45°. Then the eight-corner rubber bearing 5 can be placed between the upper bearing fixing plate 1 and the lower bearing fixing plate 2.

[0032] In this embodiment, each adjusting groove 3 is slidably connected with an adjusting nut 4, and each adjusting nut 4 is provided with two support fixing screw holes. When the adjusting nut 4 needs to be connected to the support connecting plate, any of the support fixing screw holes on the adjusting nut 4 can be connected to the corresponding support connecting hole on the support connecting plate.

[0033] In this embodiment, in order to achieve a rotatable connection between the upper support fixing plate 1 and the lower support fixing plate 2, as follows: Figure 4 As shown, the upper support fixing plate 1 and the lower support fixing plate 2 are provided with a through hole in the center of the fixing plate. Figure 4 The central through hole on the lower support fixing plate 2 is the smallest diameter through hole in the center of the lower support fixing plate 2, and its upper end is connected to a stepped hole with a larger diameter. The central through holes on the upper support fixing plate 1 are symmetrically distributed, so they will not be described again. A connecting bolt 7 passes through the central through hole of the fixing plate. The connecting bolt 7 and the central through hole of the fixing plate are slidably connected, not threaded. The connecting bolt 7 on the upper support fixing plate 1 is threadedly connected to the upper base mounting plate of the testing machine, and the connecting bolt 7 on the lower support fixing plate 2 is threadedly connected to the lower base mounting plate of the testing machine. The purpose of this arrangement is that the connecting bolt 7 can be fixedly connected to the corresponding upper or lower base mounting plate, while being able to rotate relative to the corresponding upper support fixing plate 1 or lower support fixing plate 2, thereby realizing the rotational connection between the upper support fixing plate 1 or lower support fixing plate 2 and the corresponding upper or lower base mounting plate.

[0034] In addition, such as Figure 5 As shown, a first thrust bearing 8 is provided between the end of the connecting bolt 7 (i.e., the large end of the connecting bolt 7) and the end of the central through hole of the fixing plate. The first thrust bearing 8 can be an existing thrust needle roller bearing. The first thrust bearing 8 reduces the rotational friction between the connecting bolt 7 and the corresponding upper support fixing plate 1 or lower support fixing plate 2, ensuring that the resistance during rotation is small and can be manually rotated, and can bear part of the axial force of the connecting bolt 7.

[0035] In this embodiment, a gravity balance mounting base 6 is provided on the upper surface of the upper support fixing plate 1 and the lower surface of the lower support fixing plate 2. Connecting bolts 7 pass through the central channel of the corresponding gravity balance mounting base 6, and a second thrust bearing 10 and a disc spring 9 are sleeved on the outer side of each connecting bolt 7. A gravity balance cavity is provided on the side of the gravity balance mounting base 6 near its corresponding upper support fixing plate 1 or lower support fixing plate 2, and the second thrust bearing 10 and disc spring 9 on the connecting bolt 7 are both located within the corresponding gravity balance cavity. The second thrust bearing 10 is also a thrust needle roller bearing, and the second thrust bearing 10 is closer to the corresponding upper support fixing plate 1 or lower support fixing plate 2 than the disc spring 9.

[0036] The upper gravity balance mounting base 6 is fixed to the upper support plate 1 with bolts. Under the action of gravity, the upper support plate 1 is supported by the upper first thrust bearing 8. At this time, the upper gravity balance mounting base 6 does not contact the upper base mounting plate of the testing machine. The lower gravity balance mounting base 6 and the lower support plate 2 do not need to be fixed with bolts. They are simply adjacent to each other and can rotate relative to each other under the connection of the connecting bolt 7. The lower disc spring 9 provides an upward thrust to the lower second thrust bearing 10. Under the clamping action of the lower first thrust bearing 8 and the lower thrust bearing 10, the lower support plate 2 can rotate. The lower gravity balance mounting base 6, under the action of the lower disc spring 9, contacts the lower base mounting plate of the testing machine, preventing it from rotating under the action of greater friction. At the same time, the elastic force of the lower disc spring 9 is equal to the sum of the weight of the lower support plate 2 and the tension of the lower connecting bolt 7.

[0037] In this embodiment, the adjusting groove 3 is a T-shaped groove, and the adjusting nut 4 is a T-shaped nut that matches the cross-sectional dimensions of the adjusting groove 3. Of course, those skilled in the art can also change the cross-sectional shape and size of the adjusting nut 4 and the adjusting groove 3 according to actual needs, and are not limited to this one.

[0038] In this embodiment, both the upper support fixing plate 1 and the lower support fixing plate 2 are made of carbon structural steel, which enables the upper support fixing plate 1 and the lower support fixing plate 2 to maintain stable mechanical properties under different load conditions, so that the load can be reasonably distributed and transmitted inside the device.

[0039] In the description of this invention, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this invention, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] If this invention discloses or relates to components or structural parts that are fixedly connected to each other, then, unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws) or a non-detachable fixed connection (e.g., riveting, welding). Of course, a fixed connection can also be replaced by an integral structure (e.g., manufactured in one piece using a casting process) (except where it is obviously impossible to use an integral molding process).

[0042] In addition, unless otherwise stated, the terms used in any of the technical solutions disclosed in this invention to indicate positional relationships or shapes include states or shapes that are similar to, close to, or approximate with those states or shapes.

[0043] Any component provided by this invention can be assembled from multiple individual components or can be a single component manufactured by a one-piece molding process.

[0044] It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings of this specification are only used to complement the content disclosed in the specification, so as to enable those skilled in the art to understand and read them, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0045] It should also be noted that in the embodiments of this application, the same reference numerals are used to denote the same component or the same part.

[0046] Any adaptive changes made according to actual needs are within the scope of protection of this invention.

[0047] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A multi-standard rubber bearing fixing device, characterized in that: The test machine includes an upper support fixing plate (1) and a lower support fixing plate (2). The upper support fixing plate (1) is rotatably connected to the upper base mounting plate of the test machine, and the lower support fixing plate (2) is rotatably connected to the lower base mounting plate of the test machine. A rubber support (5) is fixed between the upper support fixing plate (1) and the lower support fixing plate (2). Both the upper support fixing plate (1) and the lower support fixing plate (2) have several adjusting grooves (3) on the side near the rubber support (5). Several adjusting nuts (4) are slidably connected in each adjusting groove (3). Several support fixing screw holes are provided on each adjusting nut (4). The support connecting hole of the support connecting plate on the rubber support (5) is connected to the support fixing screw hole through the support fixing bolt.

2. The multi-standard rubber support fixing device according to claim 1, characterized in that: Both the upper support fixing plate (1) and the lower support fixing plate (2) are disc structures.

3. The multi-standard rubber support fixing device according to claim 1, characterized in that: Each of the adjustment grooves (3) is radially distributed outward from the center of the upper support fixing plate (1) and the lower support fixing plate (2).

4. The multi-standard rubber support fixing device according to claim 1, characterized in that: All of the adjustment slides (3) are divided into single-hole groups and double-hole groups. Each single-hole group includes one adjustment slide (3), and each double-hole group includes two adjustment slides (3).

5. The multi-standard rubber support fixing device according to claim 4, characterized in that: Both the single-hole group and the double-hole group have four groups, and the single-hole group and the double-hole group are distributed alternately.

6. The multi-standard rubber support fixing device according to claim 1, characterized in that: Each of the adjusting grooves (3) is slidably connected to an adjusting nut (4), and each adjusting nut (4) is provided with two support fixing screw holes.

7. The multi-standard rubber support fixing device according to claim 1, characterized in that: The upper support fixing plate (1) and the lower support fixing plate (2) are provided with a central through hole, and a connecting bolt (7) passes through the central through hole. The connecting bolt (7) on the upper support fixing plate (1) is threadedly connected to the upper foundation mounting plate of the testing machine, and the connecting bolt (7) on the lower support fixing plate (2) is threadedly connected to the lower foundation mounting plate of the testing machine. A first thrust bearing (8) is provided between the end of the connecting bolt (7) and the end of the central through hole of the fixing plate.

8. The multi-standard rubber bearing fixing device according to claim 7, characterized in that: The upper surface of the upper support fixing plate (1) and the lower surface of the lower support fixing plate (2) are each provided with a gravity balance mounting seat (6). The connecting bolt (7) passes through the gravity balance mounting seat (6). A second thrust bearing (10) and a disc spring (9) are sleeved on the outside of the connecting bolt (7). The gravity balance mounting seat (6) is provided with a gravity balance cavity. The second thrust bearing (10) and the disc spring (9) are both located in the gravity balance cavity.

9. The multi-standard rubber support fixing device according to claim 1, characterized in that: The adjusting groove (3) is a T-shaped groove, and the adjusting nut (4) is a T-shaped nut.

10. The multi-standard rubber support fixing device according to claim 1, characterized in that: The upper support fixing plate (1) and the lower support fixing plate (2) are both made of carbon structural steel.

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