A deflection-correcting seismic isolation bearing suitable for high-intensity fortification areas

Abstract

The present invention discloses a correctable seismic isolation bearing suitable for high-intensity fortified areas, relating to the technical field of seismic isolation bearings; it comprises a bottom end plate and a top end plate, a folding shielding portion is provided on the top end plate, and a seismic isolation rubber portion is arranged in an array between the bottom end plate and the top end plate; a supporting mechanism is provided on the bottom end plate, the supporting mechanism comprises a supporting plate which is lifted and lowered on the bottom end plate, and a supporting seat which is radially slidably provided on the bottom end plate, the supporting seat being used to support the supporting plate; a positioning mechanism is provided on the top end plate for positioning and fixing the seismic isolation rubber portion; an inspection mechanism is provided in the central area of ​​the bottom end plate, the inspection mechanism comprises a mounting tube which is provided on the bottom end plate, a supporting oil cylinder is provided inside the mounting tube, an inspection electric cylinder is movably provided on the mounting tube, and an inspection component is provided on the telescopic rod of the inspection electric cylinder; the present invention can replace the rubber layer, instead of the integral replacement method, and can perform maintenance and inspection on the rubber layer, so as to facilitate timely replacement and maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of seismic isolation bearings, and in particular to a deviation-correcting seismic isolation bearing suitable for high-intensity defense areas. Background Art

[0002] Seismic isolation bearings are key equipment for shock absorption and isolation in construction projects. They are widely used in seismic design, especially for seismic protection of bridges, buildings and other large structures. Its main function is to effectively isolate the propagation of seismic waves, reduce the impact of earthquakes on buildings or facilities, and thus improve their seismic resistance and safety. The current seismic isolation bearing structure is generally composed of upper and lower end plates and a middle rubber layer. As the service cycle increases, the middle rubber layer ages or is otherwise damaged, resulting in poor seismic isolation effect. When replacing and maintaining, it is generally necessary to disassemble and assemble the entire bearing; based on this, the present invention proposes a seismic isolation bearing that can replace the rubber layer instead of the integral replacement method, and can perform maintenance and inspection on the rubber layer to facilitate timely replacement and maintenance. Summary of the Invention

[0003] In view of the above technical problems, the present invention can replace the rubber layer instead of the integral replacement method, and can perform maintenance and inspection on the rubber layer to facilitate timely replacement and maintenance.

[0004] The usage scheme of the present invention is: a correctable seismic isolation bearing suitable for high-intensity fortification areas, including a bottom end plate and a top end plate, a folding shielding part is provided on the top end plate, and seismic isolation rubber parts are arranged in an array between the bottom end plate and the top end plate; a supporting mechanism is provided on the bottom end plate, the supporting mechanism includes a supporting plate arranged for lifting on the bottom end plate, and a supporting seat arranged for radial sliding on the bottom end plate, and the support seat is used to support the support plate; a positioning mechanism is provided on the top end plate for positioning and fixing the seismic isolation rubber part; an inspection mechanism is provided in the central area of ​​the bottom end plate, the inspection mechanism includes a mounting tube arranged on the bottom end plate, a supporting oil cylinder is provided inside the mounting tube, an inspection electric cylinder is movably provided on the mounting tube, and an inspection component is provided on the telescopic rod of the inspection electric cylinder.

[0005] Furthermore, a retractable cylinder is provided on the top plate, a hanging rope is provided on the retractable cylinder, a free end of the hanging rope is connected to the bottom end of the foldable shielding part, and the top end of the foldable shielding part is connected to the top plate.

[0006] Furthermore, the support mechanism includes a second motor arranged on the bottom end plate, a second gear is provided on the output shaft of the second motor, a second gear ring is rotatably mounted on the bottom end plate, the second gear ring is engaged with the second gear, and a connecting rod is rotatably connected to the second gear ring, and one end of the connecting rod is rotatably connected to the support seat.

[0007] Furthermore, a ball bearing is arranged on the support seat, and a linkage rack is provided on the side of the support seat, two springs are connected between the support plate and the bottom end plate, and two positioning parts are arranged on the support plate for positioning and installing the seismic isolation rubber part; a lifting plate is telescopically arranged on the bottom end plate and below the support plate, a guide rod and a screw rod are connected to the lifting plate, and a belt structure is provided on the bottom end plate, one end of the belt structure forms a spiral pair with the screw rod, and a linkage gear is provided on the other end of the belt structure, and the linkage gear is engaged with the linkage rack to drive the lifting plate to move up and down.

[0008] Furthermore, the positioning mechanism includes a motor 1 arranged on the top plate, a gear 1 is provided on the output shaft of the motor 1, a ring gear 1 is rotatably mounted on the top plate, the ring gear 1 is engaged with the gear 1, a push wheel is provided on the circumference of the ring gear 1, a fixing plate is arrayed and radially arranged on the top plate, a positioning part 1 for positioning and installing the seismic isolation rubber part is arranged in an array on the top plate, and the fixing plate is used to fix the seismic isolation rubber part.

[0009] Furthermore, a spring is connected between the fixed plate and the top plate, and a pushing portion is provided at one end of the fixed plate, and the pushing portion is pushed by a push wheel to move the fixed plate.

[0010] Furthermore, the inspection mechanism includes a support portion arranged on the telescopic rod of the supporting cylinder, a position motor and a position screw are arranged on the supporting cylinder, the position motor is used to drive the position screw, a position slide is slidably installed on the supporting cylinder, the position slide and the position screw form a spiral pair, an azimuth gear ring is rotatably installed on the position slide, and an azimuth motor is arranged on the position slide, an azimuth gear is arranged on the output shaft of the azimuth motor, and the azimuth gear is engaged with the azimuth gear ring; the inspection electric cylinder is arranged on the azimuth gear ring.

[0011] Furthermore, the inspection component includes a mounting ring arranged on the telescopic rod of the inspection electric cylinder, a telescopic contact shaft is telescopically arranged on the mounting ring, a displacement sensor is arranged between the telescopic contact shaft and the mounting ring, for outputting feedback of the displacement signal of the telescopic contact shaft; a position detector is arranged on the telescopic rod of the inspection electric cylinder, for outputting feedback of the position information of the top plate.

[0012] Compared with the prior art, the present invention has the following advantages: (1) the folding shielding part can be retracted and extended by controlling the retractable cylinder to shield the seismic isolation rubber part, thereby preventing the seismic isolation rubber from being exposed to ultraviolet rays for a long time and slowing down aging; (2) the lifting plate moves downward, and the support plate moves downward following the lifting plate, so that the top of the seismic isolation rubber part is separated from the positioning part 1, and the damaged or aged seismic isolation rubber part can be replaced; (3) the position motor contacts the circumferential area of ​​the seismic isolation rubber part. When the seismic isolation rubber part ages or is subjected to uneven force, its circumference expands and deforms significantly. By detecting the expansion degree of its circumference, that is, when the telescopic contact shaft contacts the circumference of the seismic isolation rubber part, it moves telescopically, and its displacement sensor can output a telescopic displacement signal of the telescopic contact shaft; further, the position motor contacts the fixed plate above, and can output a top height signal of the seismic isolation rubber part in each direction, that is, judge the degree of deflection of the top plate, and thereby judge whether the seismic isolation rubber part needs to be replaced or maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 This is a schematic diagram of the installation structure of the seismic isolation rubber part of the present invention.

[0015] Figure 3 This is a schematic diagram of the top plate installation structure of the present invention.

[0016] Figure 4 This is a structural schematic diagram of the fixing plate of the present invention.

[0017] Figure 5 This is a schematic diagram of the support plate structure of the present invention.

[0018] Figure 6 This is a schematic diagram of the bottom end plate installation structure of the present invention.

[0019] Figure 7 This is a schematic diagram of the installation structure of the support base and lifting plate of the present invention.

[0020] Figure 8 This is a schematic diagram of the installation tube structure of the present invention.

[0021] Figure 9 This is a schematic diagram of the supporting oil cylinder structure of the present invention.

[0022] Figure 10 This is a schematic diagram of the position slide installation structure of the present invention.

[0023] Figure 11 This is a schematic diagram of the inspection component structure of the present invention.

[0024] Figure numerals: 1- bottom plate; 2- top plate; 3- folding shielding part; 4- retractable cylinder; 5- seismic isolation rubber part; 6- positioning part 1; 7- motor 1; 8- gear 1; 9- gear ring 1; 10- push wheel; 11- fixing plate; 12- spring 1; 13- pushing part; 14- supporting plate; 15- positioning part 2; 16- spring 2; 17- supporting seat; 18- gear ring 2; 19- motor 2; 20- gear 2; 21- connecting rod ;22-lifting plate;23-guide rod;24-screw rod;25-belt structure;26-linkage gear;27-linkage rack;28-mounting cylinder;29-position screw rod;30-position motor;31-support cylinder;32-support part;33-position slide;34-azimuth gear ring;35-azimuth motor;36-azimuth gear;37-inspection electric cylinder;38-mounting ring;39-position detector;40-telescopic contact shaft. DETAILED DESCRIPTION

[0025] Example: Figures 1 to 11 As shown, a correctable seismic isolation bearing suitable for high-intensity fortification areas includes a bottom end plate 1 and a top plate 2, a folding shielding portion 3 is provided on the top plate 2, and seismic isolation rubber portions 5 are arranged in an array between the bottom end plate 1 and the top plate 2; a supporting mechanism is provided on the bottom end plate 1, the supporting mechanism includes a supporting plate 14 which is lifted and lowered on the bottom end plate 1, and a supporting seat 17 which is radially slidably provided on the bottom end plate 1, and the support seat 17 is used to support the supporting plate 14; a positioning mechanism is provided on the top plate 2 for positioning and fixing the seismic isolation rubber portion 5; an inspection mechanism is provided in the central area of ​​the bottom end plate 1, the inspection mechanism includes a mounting tube 28 which is provided on the bottom end plate 1, a supporting oil cylinder 31 is provided inside the mounting tube 28, an inspection electric cylinder 37 is movably provided on the mounting tube 28, and an inspection component is provided on the telescopic rod of the inspection electric cylinder 37.

[0026] A retractable cylinder 4 is provided on the top plate 2 , and a hanging rope is provided on the retractable cylinder 4 . The free end of the hanging rope is connected to the bottom end of the foldable shielding part 3 , and the top end of the foldable shielding part 3 is connected to the top plate 2 .

[0027] The support mechanism includes a motor 2 19 arranged on the bottom end plate 1, a gear 2 20 is arranged on the output shaft of the motor 2 19, a gear ring 2 18 is rotatably mounted on the bottom end plate 1, the gear ring 2 18 is meshed with the gear 2 20, and a connecting rod 21 is rotatably connected to the gear ring 2 18, one end of the connecting rod 21 is rotatably connected to the support seat 17; a ball is arranged on the support seat 17, and a linkage rack 27 is arranged on the side of the support seat 17, a spring 2 16 is connected between the support plate 14 and the bottom end plate 1, and A positioning portion 215 is provided on the support plate 14 for positioning and installing the seismic isolation rubber portion 5; a lifting plate 22 is telescopically provided on the bottom end plate 1 and below the support plate 14, and a guide rod 23 and a screw rod 24 are connected to the lifting plate 22. A belt structure 25 is provided on the bottom end plate 1, and one end of the belt structure 25 forms a spiral pair with the screw rod 24, and a linkage gear 26 is provided on the other end of the belt structure 25, which engages with a linkage rack 27 to drive the lifting plate 22 to move up and down.

[0028] The positioning mechanism includes a motor 7 arranged on the top plate 2, a gear 8 is provided on the output shaft of the motor 7, a ring gear 9 is rotatably installed on the top plate 2, the ring gear 9 is engaged with the gear 8, a push wheel 10 is provided on the circumference of the ring gear 9, and a fixed plate 11 is arranged in an array and radially on the top plate 2. Positioning parts 6 for positioning and installing the seismic isolation rubber part 5 are arranged in an array on the top plate 2, and the fixed plate 11 is used to fix the seismic isolation rubber part 5; a spring 12 is connected between the fixed plate 11 and the top plate 2, and a pushing part 13 is provided at one end of the fixed plate 11, and the pushing part 13 is pushed by the push wheel 10 to move the fixed plate 11.

[0029] The inspection mechanism includes a support part 32 arranged on the telescopic rod of the support cylinder 31, and a position motor 30 and a position screw 29 are arranged on the support cylinder 31. The position motor 30 is used to drive the position screw 29, and a position slide 33 is slidably installed on the support cylinder 31. The position slide 33 and the position screw 29 form a spiral pair, and an azimuth gear ring 34 is rotatably installed on the position slide 33, and an azimuth motor 35 is arranged on the position slide 33. An azimuth gear 36 is arranged on the output shaft of the azimuth motor 35, and the azimuth gear 36 is engaged with the azimuth gear ring 34; the inspection electric cylinder 37 is arranged on the azimuth gear ring 34; the inspection component includes a mounting ring 38 arranged on the telescopic rod of the inspection electric cylinder 37, and a telescopic contact shaft 40 is telescopically arranged on the mounting ring 38. A displacement sensor is arranged between the telescopic contact shaft 40 and the mounting ring 38 for outputting a displacement signal of the telescopic contact shaft 40; a position detector 39 is arranged on the telescopic rod of the inspection electric cylinder 37 for outputting position information of the feedback top plate 2.

[0030] Working principle: the supported carrier is installed on the top plate 2, and the seismic isolation rubber part 5 is installed between the bottom plate 1 and the top plate 2 to play the role of buffering and seismic isolation. In the case of direct sunlight, the folding shielding part 3 can be retracted and extended by controlling the retractable cylinder 4 to shield the seismic isolation rubber part 5, preventing the seismic isolation rubber part 5 from being exposed to ultraviolet rays for a long time and slowing down aging.

[0031] When the isolation rubber part 5 has been used for a certain period and has irreversible deformation, the isolation rubber part 5 can be easily replaced without removing the supported carrier. Specifically, the support part 32 is controlled by the support cylinder 31 to support the top plate 2. The motor 2 19 works and the ring gear 2 18 rotates. Under the connection of the connecting rod 21, the support seat 17 moves. When the support seat 17 moves outward and the linkage rack 27 engages with the linkage gear 26, under the transmission action of the belt structure 25, the screw rod 24 and the lifting plate 22 move, that is, the lifting plate 22 moves downward, and the support plate 14 moves downward with the lifting plate 22, so that the top of the isolation rubber part 5 is separated from the positioning part 1 6, and the damaged or aged isolation rubber part 5 can be replaced.

[0032] During replacement, the bottom end of the isolation rubber part 5 is installed in the positioning part 2 15, and the support seat 17 is controlled to move inward first, that is, the lifting plate 22 moves upward synchronously, that is, the lifting support plate 14 moves, so that the top end of the isolation rubber part 5 is installed and matched with the positioning part 1 6, and then the support seat 17 is located under the support plate 14 to support the support plate 14; for the top end of the isolation rubber part 5, the motor 17 is operated to make the gear ring 1 9 rotate, and the push wheel 10 pushes the pushing part 13, so that the fixing plate 11 fixes the top circumferential surface.

[0033] The isolation rubber part 5 can be inspected regularly. Specifically, the position motor 30 works and the position screw 29 rotates to adjust the height of the position slide 33. The azimuth motor 35 works and the azimuth gear ring 34 rotates to adjust the azimuth of the inspection electric cylinder 37. The inspection electric cylinder 37 controls the movement of the mounting ring 38. The position motor 30 contacts the circumferential area of ​​the isolation rubber part 5. When the isolation rubber part 5 ages or has uneven force, its circumference expands and deforms significantly. By detecting the degree of expansion of its circumference, that is, when the telescopic contact shaft 40 contacts the circumference of the isolation rubber part 5, it performs telescopic movement, and its displacement sensor can output a telescopic displacement signal of the telescopic contact shaft 40. Furthermore, the position motor 30 contacts the upper fixed plate 11 and can output a top height signal of the isolation rubber part 5 in each direction, that is, judge the degree of deflection of the top plate 2, and thereby judge whether the isolation rubber part 5 needs to be replaced and maintained.

Claims

1. A deflection-correcting seismic isolation bearing suitable for high-intensity fortification areas, comprising a bottom end plate (1) and a top end plate (2), characterized in that: A folding shielding portion (3) is provided on the top end plate (2), and a seismic isolation rubber portion (5) is arranged in an array between the bottom end plate (1) and the top end plate (2); a supporting mechanism is provided on the bottom end plate (1), the supporting mechanism comprising a supporting plate (14) which is lifted and lowered on the bottom end plate (1), and a supporting seat (17) which is radially slidably provided on the bottom end plate (1), the supporting seat (17) being used to support the supporting plate (14); a positioning mechanism is provided on the top end plate (2) for positioning and fixing the seismic isolation rubber portion (5); an inspection mechanism is provided in the central area of ​​the bottom end plate (1), the inspection mechanism comprising a mounting cylinder (28) which is provided on the bottom end plate (1), a supporting oil cylinder (31) being provided inside the mounting cylinder (28), an inspection electric cylinder (37) being movably provided on the mounting cylinder (28), and an inspection component being provided on the telescopic rod of the inspection electric cylinder (37); The support mechanism includes a second motor (19) arranged on the bottom end plate (1), a second gear (20) is arranged on the output shaft of the second motor (19), a second gear ring (18) is rotatably mounted on the bottom end plate (1), the second gear ring (18) is meshed with the second gear (20), and a connecting rod (21) is rotatably connected to the second gear ring (18), and one end of the connecting rod (21) is rotatably connected to the support seat (17); A ball bearing is arranged on the support seat (17), and a linkage rack (27) is arranged on the side of the support seat (17); a second spring (16) is connected between the support plate (14) and the bottom end plate (1), and a second positioning part (15) is arranged on the support plate (14) for positioning and installing the seismic isolation rubber part (5); a lifting plate (22) is telescopically arranged on the bottom end plate (1) and below the support plate (14); a guide rod (23) and a screw rod (24) are connected to the lifting plate (22); a belt structure (25) is arranged on the bottom end plate (1); one end of the belt structure (25) and the screw rod (24) form a spiral pair; the other end of the belt structure (25) is provided with a linkage gear (26); the linkage gear (26) is engaged with the linkage rack (27) to drive the lifting plate (22) to move up and down; The positioning mechanism includes a motor (7) arranged on the top plate (2), a gear (8) arranged on the output shaft of the motor (7), a ring gear (9) rotatably mounted on the top plate (2), the ring gear (9) meshing with the gear (8), a push wheel (10) arranged on the circumference of the ring gear (9), a fixed plate (11) arranged in an array and radially on the top plate (2), a positioning part (6) for positioning and mounting the seismic isolation rubber part (5) arranged in an array on the top plate (2), and the fixed plate (11) used to fix the seismic isolation rubber part (5); A spring (12) is connected between the fixed plate (11) and the top plate (2), and a pushing portion (13) is provided at one end of the fixed plate (11). The pushing portion (13) is pushed by the pushing wheel (10) to move the fixed plate (11).

2. The correctable seismic isolation bearing suitable for high-intensity fortification areas according to claim 1 is characterized by: The top plate (2) is provided with a retractable cylinder (4), the retractable cylinder (4) is provided with a hanging rope, the free end of the hanging rope is connected to the bottom end of the folding shielding part (3), and the top end of the folding shielding part (3) is connected to the top plate (2).

3. The correctable seismic isolation bearing suitable for high-intensity fortification areas according to claim 1 is characterized by: The inspection mechanism includes a support portion (32) arranged on a telescopic rod of a support oil cylinder (31); a position motor (30) and a position screw (29) are arranged on the support oil cylinder (31); the position motor (30) is used to drive the position screw (29); a position slide (33) is slidably mounted on the support oil cylinder (31); the position slide (33) and the position screw (29) form a spiral pair; an azimuth gear ring (34) is rotatably mounted on the position slide (33); an azimuth motor (35) is arranged on the position slide (33); an azimuth gear (36) is arranged on the output shaft of the azimuth motor (35); the azimuth gear (36) is meshed with the azimuth gear ring (34); and an inspection electric cylinder (37) is arranged on the azimuth gear ring (34).

4. The correctable seismic isolation bearing suitable for high-intensity fortification areas according to claim 1 is characterized by: The inspection assembly comprises a mounting ring (38) arranged on a telescopic rod of an inspection electric cylinder (37); a telescopic contact shaft (40) is telescopically arranged on the mounting ring (38); a displacement sensor is arranged between the telescopic contact shaft (40) and the mounting ring (38) for outputting a displacement signal of the telescopic contact shaft (40); and a position detector (39) is arranged on the telescopic rod of the inspection electric cylinder (37) for outputting position information of the top plate (2).

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