Bridge rubber bearing corner test device

Abstract

The utility model provides a bridge rubber support corner test device, including base, set up below base for jacking rubber support's jacking device, the slide bar of setting in the upper portion of base, the crossbeam of setting on the slide bar, the upper bearing plate of setting below crossbeam, the corner plate of setting below upper bearing plate, the lower bearing plate of setting below corner plate, and set up in the lower pressure device for the corner plate is pressed down to one side of crossbeam, the workbench of butt joint base is also correspondingly established to one side of base, is equipped with the guide rail on the workbench, is equipped with the corresponding guide rail on the upper portion of base, is equipped with the pulley of matching guide rail on the lower bearing plate. Through setting up the workbench that is apart from base certain distance, like this rubber support can complete the feeding and the discharging at the workbench, like this rubber support hoist time will not contact with test device, test device is also not easy to wear and tear, and the operator is fed and discharged at the workbench, and the distance is far from test device, like this operation is also more convenient.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering technology, and in particular to a bridge rubber bearing rotation angle testing device. Background Technology

[0002] Rubber bearings are key components installed on bridge piers and abutments to support the superstructure. Their main function is to fix the bridge superstructure to the piers and abutments, bear various loads acting on the superstructure (including vertical forces, horizontal forces, and bending moments), and reliably transfer these forces to the lower piers and abutments. Due to their excellent vibration reduction and isolation performance and large deformation adaptability, rubber bearings have been widely used in various bridge projects.

[0003] However, the problem of rubber bearing detachment is particularly common in bridge bearing quality accidents, seriously affecting the safety and durability of bridge structures. Therefore, testing its corner performance under actual working conditions is crucial. Currently, common corner testing devices have significant drawbacks: their loading and testing stations usually overlap, meaning that the rubber bearing must be directly hoisted to the test loading position for installation and testing during the test. This method is not only inconvenient and inefficient, but also prone to causing impact damage to the precision components of the testing device during hoisting, leading to decreased equipment accuracy, shortened service life, and potential safety risks. Utility Model Content

[0004] The purpose of this invention is to provide a bridge rubber bearing rotation angle testing device to solve the technical problems of inconvenience in operation and easy damage to equipment caused by the overlap of the feeding station and the testing station in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model provides a bridge rubber bearing corner testing device, including a base, a lifting device disposed below the base for lifting the rubber bearing, a sliding rod disposed above the base, a crossbeam disposed on the sliding rod, an upper bearing plate disposed below the crossbeam, a corner plate disposed below the upper bearing plate, a lower bearing plate disposed below the corner plate, and a pressing device disposed on one side of the crossbeam for applying downward pressure to the corner plate. A worktable corresponding to the base is also disposed on one side of the base, a guide rail is disposed on the worktable, a corresponding guide rail is disposed above the base, and a pulley matching the guide rail is disposed on the lower bearing plate.

[0006] In a preferred embodiment, a cylinder is provided on the worktable, a fixed seat is provided on the piston rod of the cylinder, a connecting block is provided at the front end of the fixed seat, a groove is provided above the connecting block, and a plug rod that can be inserted into the groove from top to bottom is provided at the corresponding position of the lower pressure plate.

[0007] In a preferred embodiment, a mounting base is provided on one side of the base, and a limiting rod is provided on the mounting base.

[0008] In a preferred embodiment, the lifting device includes a first mounting plate, a first hydraulic cylinder disposed below the first mounting plate, a top plate disposed on the piston rod of the first hydraulic cylinder, and a guide rod disposed on one side of the top plate.

[0009] In a preferred embodiment, the pressing device includes a second mounting plate, a second hydraulic cylinder mounted on the second mounting plate, a load sensor mounted below the second hydraulic cylinder, and a pressure rod mounted below the load sensor.

[0010] In a preferred embodiment, a crossbar is also provided on the slide bar located above the crossbeam, an adjusting rod is threaded onto the crossbar, and a connecting seat is provided on the crossbeam, the connecting seat being rotatably connected to the adjusting rod.

[0011] In a preferred embodiment, a boss larger than the adjusting rod is provided at the lower end of the adjusting rod, and a through hole for easy insertion of the adjusting rod and a receiving space for accommodating the boss are provided on the connecting seat.

[0012] The beneficial effects of this utility model are:

[0013] (1) By setting up a workbench at a certain distance from the base, the rubber support can be loaded and unloaded at the workbench. This way, the rubber support will not come into contact with the test device when it is hoisted, and the test device will not be easily worn. Moreover, the operator can load and unload materials at the workbench, which is far away from the test device, so the space will not be crowded and the operation is more convenient.

[0014] (2) In addition, by setting an adjustable rod above the crossbeam to adjust the height of the crossbeam, the distance between the upper and lower bearing plates can be adjusted to accommodate rubber supports of different heights. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a front view structural diagram of an embodiment of the present utility model;

[0017] Figure 2 This is a top view of the base structure of an embodiment of this utility model;

[0018] Figure 3 This is a side view of the lifting device according to an embodiment of the present invention;

[0019] Figure 4 This is a connection structure diagram of the connector in an embodiment of this utility model.

[0020] Reference numerals: Base 11; Slide rod 12; Crossbeam 13; Upper pressure plate 14; Corner plate 15; Lower pressure plate 16; Worktable 17; Guide rail 18; Pulley 19; Lifting device 2; First mounting plate 21; First hydraulic cylinder 22; Top plate 23; Guide rod 24; Pressing device 3; Second mounting plate 31; Second hydraulic cylinder 32; Load sensor 33; Pressure rod 34; Cylinder 41; Fixed seat 42; Connecting block 43; Insert rod 44; Crossbar 51; Adjusting rod 52; Boss 53; Connecting seat 54; Accommodation space 541; Mounting seat 55; Limiting rod 56. Detailed Implementation

[0021] In the description of this invention, it should be understood that if terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, 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. Therefore, they should not be construed as limiting this invention.

[0022] Example 1:

[0023] Please see Figure 1-4 As shown, the present application provides a technical solution: a bridge rubber bearing corner testing device, including a base 11, a lifting device 2 disposed below the base 11 for lifting the rubber bearing, a sliding rod 12 disposed above the base 11, a crossbeam 13 disposed on the sliding rod 12, an upper bearing plate 14 disposed below the crossbeam 13, a corner plate 15 disposed below the upper bearing plate 14, a lower bearing plate 16 disposed below the corner plate 15, and a pressing device 3 disposed on one side of the crossbeam 13 for applying downward pressure to the corner plate 15. A workbench 17 corresponding to the base 11 is also disposed on one side of the base 11, a guide rail 18 is disposed on the workbench 17, a corresponding guide rail is disposed above the base 11, and a pulley 19 matching the guide rail 18 is disposed on the lower bearing plate 16.

[0024] With the above structure, pulley 19 can roll along guide rail 18. When a bridge rubber bearing rotation test is required, the lower bearing plate 16 is pushed from one side, and the lower bearing plate 16 moves along guide rail 18 to the workbench 17. Then, the rubber bearing is hoisted onto the lower bearing plate 16. After hoisting the rubber bearing, the lower bearing plate 16 is pushed to the position corresponding to the upper bearing plate 14 on the base 11. This allows for the rubber bearing rotation test. By setting the workbench 17 at a certain distance from the base 11, the rubber bearing can be loaded and unloaded on the workbench 17. This prevents the rubber bearing from contacting the testing device during hoisting, reduces wear on the testing device, and allows operators to load and unload materials at the workbench 17, keeping the space less crowded and making operation more convenient.

[0025] In a preferred embodiment, a cylinder 41 is provided on the worktable 17, a fixed seat 42 is provided on the piston rod of the cylinder 41, a connecting block 43 is provided at the front end of the fixed seat 42, a groove is provided above the connecting block 43, and a plug rod 44 that can be inserted into the groove from top to bottom is provided at the corresponding position of the lower pressure plate 16.

[0026] With the above structure, cylinder 41 can be connected to the lower pressure plate 16. By controlling cylinder 41 to retract, the lower pressure plate 16 can be pulled toward the workbench 17. Then, the rubber support can be hoisted onto the lower pressure plate 16. By controlling cylinder 41 to extend, the rubber support can be sent to the position below the upper pressure plate 14.

[0027] At the same time, the insertion rod 44 is inserted into the groove from top to bottom. This avoids the upward movement of the lower pressure plate 16 pulling up the connecting block 43 when the lifting device 2 pushes the lower pressure plate 16 upward, thus affecting the movement of the cylinder 41. Moreover, when the lower pressure plate 16 descends after the test, the insertion rod 44 can be directly inserted into the groove without reconnecting the lower pressure plate 16 and the connecting block 43.

[0028] In a preferred embodiment, a mounting base 55 is provided on one side of the base 11, and a limiting rod 56 is provided on the mounting base 55.

[0029] With the above structure, the limiting rod 56 can hold the lower pressure plate 16 on one side to prevent the lower pressure plate 16 from continuing to move to the left, thus playing a positioning role for the lower pressure plate 16.

[0030] In a preferred embodiment, the lifting device 2 includes a first mounting plate 21, a first hydraulic cylinder 22 disposed below the first mounting plate 21, a top plate 23 disposed on the piston rod of the first hydraulic cylinder 22, and a guide rod 24 disposed on one side of the top plate 23.

[0031] Using the above structure, by controlling the first oil cylinder 22 to extend out of the top plate 23, the lower pressure plate 16 can be pushed upwards, thereby pressing the rubber support placed between the upper pressure plate 14 and the lower pressure plate 16.

[0032] In a preferred embodiment, the pressing device 3 includes a second mounting plate 31, a second hydraulic cylinder 32 mounted on the second mounting plate 31, a load sensor 33 mounted below the second hydraulic cylinder 32, and a pressure rod 34 mounted below the load sensor 33.

[0033] Using the above structure, the second hydraulic cylinder 32 is extended, and the pressure rod 34 presses against the corner plate. By observing the test data of the load sensor 33 and the state of the rubber support, the rotational performance of the rubber support can be calculated. The load sensor 33 functions similarly to a pressure sensor here. The pressure rod 34 is detachable, and by replacing the pressure rod 34 with different lengths, a larger rotational angle of the rubber support can be tested.

[0034] Example 2:

[0035] Further explanation in conjunction with Example 1;

[0036] This embodiment is a further optimized design based on Embodiment 1. Repeated content will not be described here; only the differences from Embodiment 1 will be described. These differences are as follows:

[0037] In a preferred embodiment, a crossbar 51 is provided on the slide bar 12 located above the crossbeam 13, an adjusting rod 52 is threadedly connected to the crossbar 51, and a connecting seat 54 is provided on the crossbeam 13, the connecting seat 54 being rotatably connected to the adjusting rod 52.

[0038] With the above structure, the adjusting rod 52 can be rotated, which can drive the crossbeam 13 to rise and fall. This allows for adjustment of the space between the upper bearing plate 14 and the lower bearing plate 16 to accommodate rubber supports of different heights.

[0039] In a preferred embodiment, a boss 53 with a size larger than the adjusting rod 52 is provided at the lower end of the adjusting rod 52, and a through hole for easy insertion of the adjusting rod 52 and a receiving space 541 for accommodating the boss 53 are provided on the connecting seat 54.

[0040] With the above structure, when the adjusting rod 52 is rotated, since the adjusting rod 52 and the crossbar 51 are threadedly connected, the adjusting rod 52 will rise or fall relative to the crossbar 51. The upper or lower surface of the boss 53 will contact the connecting seat 54, and synchronously drive the connecting seat 54 to rise or fall, thereby adjusting the height of the crossbeam 13.

[0041] The working principle of the rotation angle testing device of the pressure testing machine of the present invention is as follows: During the experiment, the rotation angle plate 15 is placed between the two rubber supports, and all three are aligned with the central axis of the device. The lifting device 2 is activated to apply a vertical design bearing force upward to simulate the actual stress state of the supports. Subsequently, the pressing device 3 is activated, and the pressing device 3 pushes downward, transmitting pressure to the rotation angle plate 15 through the detachable pressure rod 34, forcing the rotation angle plate 15 to produce a downward rotation angle displacement. The applied force value is monitored by the load sensor 33, and the mechanical response of the rubber support under this force and rotation angle is observed. By changing the pressure rod 34 of different lengths to change the lever arm, the above process is repeated for multiple measurements, and the true rotation angle performance of the rubber support can be comprehensively evaluated.

[0042] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A test device for the rotation angle of bridge rubber bearings, characterized in that: The device includes a base (11), a lifting device (2) located below the base (11) for lifting the rubber support, a slide bar (12) vertically located above the base (11), a crossbeam (13) located on the slide bar (12), an upper pressure plate (14) located below the crossbeam (13), a corner plate (15) located below the upper pressure plate (14), a lower pressure plate (16) located below the corner plate (15), and a pressing device (3) located on one side of the crossbeam (13) for applying downward pressure to the corner plate (15). A workbench (17) corresponding to the base (11) is also provided on one side of the base (11). A guide rail (18) is provided on the workbench (17), a corresponding guide rail is provided above the base (11), and a pulley (19) matching the guide rail (18) is provided on the lower pressure plate (16).

2. The bridge rubber bearing rotation angle testing device according to claim 1, characterized in that: A cylinder (41) is provided on the workbench (17), a fixed seat (42) is provided on the piston rod of the cylinder (41), a connecting block (43) is provided at the front end of the fixed seat (42), a groove is provided above the connecting block (43), and a plug (44) is provided at the corresponding position of the lower pressure plate (16) that can be inserted into the groove from top to bottom.

3. The bridge rubber bearing rotation angle testing device according to claim 1, characterized in that: A mounting base (55) is also provided on one side of the base (11), and a limiting rod (56) is provided on the mounting base (55).

4. The bridge rubber bearing rotation angle testing device according to claim 1, characterized in that: The lifting device (2) includes a first mounting plate (21), a first hydraulic cylinder (22) disposed below the first mounting plate (21), a top plate (23) disposed on the piston rod of the first hydraulic cylinder (22), and a guide rod (24) disposed on one side of the top plate (23).

5. The bridge rubber bearing rotation angle testing device according to claim 1, characterized in that: The pressing device (3) includes a second mounting plate (31), a second cylinder (32) mounted on the second mounting plate (31), a load sensor (33) mounted below the second cylinder (32), and a pressure rod (34) mounted below the load sensor (33).

6. The bridge rubber bearing rotation angle testing device according to claim 1, characterized in that: A crossbar (51) is also provided on the slide bar (12) located above the crossbeam (13), and an adjusting rod (52) is threadedly connected to the crossbar (51). A connecting seat (54) is provided on the crossbeam (13), and the connecting seat (54) is rotatably connected to the adjusting rod (52).

7. The bridge rubber bearing rotation angle testing device according to claim 6, characterized in that: A boss (53) larger than the adjusting rod (52) is provided at the lower end of the adjusting rod (52), and a through hole for easy insertion of the adjusting rod (52) and a receiving space (541) for accommodating the boss (53) are provided on the connecting seat (54).

Images