Transformer mounting base with multi-stage buffering and damping functions and construction method of transformer mounting base

Abstract

The invention discloses a transformer mounting base with multi-stage buffering and damping and a construction method thereof.The transformer mounting base comprises a transformer body, a supporting plate and a cement foundation pile, and a plurality of first-stage buffering components and second-stage buffering components are fixedly arranged between the cement foundation pile and the supporting plate; a third-level buffering component is further fixedly installed between the cement foundation pile and the supporting plate, the third-level buffering component comprises a displacement triggering module and a damping buffering module, a multi-level buffering structure composed of the first-level buffering component, the second-level buffering component and the third-level buffering component is designed, and the time sequence triggering function is achieved; main vibration isolation is achieved through the first-stage buffer component, the second-stage buffer component absorbs consumed energy, the third-stage buffer component provides self-adaptive limit protection, effective response from daily operation to extreme earthquakes can be achieved, and the problems that in the prior art, the buffer performance is single, and limit protection is insufficient are solved. And the device is especially suitable for transformer substations with high requirements on anti-seismic safety and operation stability.

Description

Technical Field

[0001] This application relates to the field of transformer buffer base technology, and in particular to a transformer mounting base with multi-stage buffering and vibration reduction. Background Technology

[0002] Power transformers are core equipment in power transmission and distribution systems, and their stable, quiet, and safe operation is of paramount importance. During normal operation, transformers generate continuous low-frequency vibrations due to the magnetostriction of the iron core and the electromagnetic force of the windings. If this vibration is transmitted to the foundation through the base, it will cause structural noise pollution, and long-term effects may also cause loosening of connections.

[0003] Meanwhile, transformers may encounter short-circuit electrodynamic forces or common external impacts during operation. These medium-energy instantaneous loads can impact the transformer's structure. In extreme cases, such as natural disasters like earthquakes, transformers will withstand enormous impact energy, resulting in significant displacement and potentially causing serious accidents such as equipment overturning, internal structural damage, and bushing rupture.

[0004] Currently, most common transformer mounting bases use simple rubber pads or steel springs as single buffer elements. These buffer elements focus on daily vibration isolation design, but their ultimate displacement restraint capacity is insufficient in extreme situations.

[0005] In other words, existing technologies have the following technical problems: ordinary transformer buffer bases lack sufficient protection under extreme cleaning conditions. Therefore, a transformer mounting base with multi-stage buffering and vibration reduction is proposed to address the above problems. Summary of the Invention

[0006] This embodiment provides a transformer mounting base with multi-stage buffering and shock absorption to solve the problem that ordinary transformer buffer bases in the prior art have insufficient protection capabilities under extreme cleaning conditions.

[0007] According to one aspect of this application, a transformer mounting base with multi-stage buffering and vibration damping is provided, comprising a transformer body, a support plate, and cement piles, wherein a plurality of primary buffer components and secondary buffer components are fixedly disposed between the cement piles and the support plate. The primary and secondary buffer components are used to isolate the continuous low-frequency vibration generated by the transformer body during normal operation. A three-stage buffer component is also fixedly installed between the cement pile and the support plate. The three-stage buffer component includes a displacement triggering module and a damping buffer module. The displacement triggering module is used to be triggered when the transformer body exceeds the displacement threshold, and drives the damping buffer module to generate a frictional damping force that increases with the increase of displacement, so as to dissipate the impact energy and limit the displacement.

[0008] Furthermore, a support frame is fixedly connected to both sides of the bottom surface of the transformer body, and the two support frames are fixedly connected to the support plate.

[0009] Furthermore, the primary buffer component is a helical steel spring.

[0010] Furthermore, the secondary buffer component is a buffer damper, the bottom end of which is fixedly connected to a first support plate, the upper end of which is fixedly connected to a second support plate, and the primary buffer component is disposed between the first support plate and the second support plate.

[0011] Furthermore, the number of the secondary buffer components is the same as that of the primary buffer components, and they are symmetrically distributed in an array between the support plate and the cement pile.

[0012] Furthermore, the displacement triggering module includes a triggering part fixed to the support plate, a fixed guide rod disposed on the cement pile, a linear slide block slidably connected to the fixed guide rod, a connecting frame rotatably connected to the linear slide block, and a contact plate rotatably connected to the other end of the connecting frame, the contact plate being located directly below the triggering part.

[0013] Furthermore, the triggering part includes a fixed sleeve, an adjusting rod, and an adjusting screw. The adjusting rod is slidably connected inside the fixed sleeve, and the adjusting screw is threadedly engaged with a threaded sleeve inside the adjusting rod. The adjusting screw is connected to an adjusting knob via a bevel gear pair. Rotating the adjusting knob can drive the adjusting rod to extend or retract to adjust the gap with the contact plate.

[0014] Furthermore, the damping buffer module includes a support base fixed to the cement pile, a friction guide rod fixed to the support plate, and a movable slider disposed in the support base; The movable slider is connected to a damping friction block, which is located on both sides of the friction guide rod. An inclined plane mechanism is provided inside the support base. The movable slider is connected to the inclined plane mechanism. The inclined plane mechanism is connected to the linear slide of the displacement trigger module through a linkage rod. It is used to convert the horizontal movement of the linear slide into the opposite movement of the two movable sliders, so that the damping friction block clamps the friction guide rod to generate friction damping.

[0015] Furthermore, a movable limiting part is fixedly connected to the bottom surface of the contact plate. The movable limiting part includes a rectangular guide rod fixed to the contact plate and a rectangular seat set on the cement pile. The rectangular guide rod is slidably inserted in the rectangular seat. The rectangular guide rod is provided with ratchet teeth, and the rectangular seat is provided with a tenon that can engage the ratchet teeth to prevent the rectangular guide rod from springing back.

[0016] Furthermore, the construction method for the transformer mounting base with multi-stage buffering and vibration damping includes the following steps: S1. Before construction, the plan position, elevation and surface flatness of the cement piles are inspected to ensure that they meet the design requirements. Then, the cement piles are reliably fixed in the preset foundation position. Subsequently, the primary buffer component and the secondary buffer component are fixedly installed on the cement piles. S2. Use lifting equipment to hoist the transformer body that has been assembled with the support plate as a whole, and let it fall smoothly until the support plate is reliably supported by the primary buffer component and the secondary buffer component; S3. The damping buffer module is fixedly installed at the designed position of the cement pile; S4. Install the displacement trigger module to ensure that there is an initial safety clearance as required by design between the trigger part and the contact plate; S5. Precisely adjust the trigger gap. By operating the adjustment knob on the trigger part, drive the adjustment screw to rotate, thereby precisely adjusting the vertical distance between the lower end face of the contact part and the upper surface of the contact plate to ensure that it meets the safety gap value specified in the design. S6. Manually simulate the trigger action to check whether the linear slide, connecting bracket, and inclined slider move smoothly and ensure there is no jamming. S7. After checking that all connections are secure, power on the transformer for testing. Under normal transformer operation, observe the vibration isolation effect of the base. Simulated impact tests can be performed to verify whether the three-stage buffer component can be triggered normally and produce the expected damping effect under the set displacement. After the test, if the three-stage buffer component has been triggered, operate the slider of the moving limit part to disengage the latch from the ratchet. Under the action of the reset spring, the entire displacement trigger module is reset to the standby state. Clean up the site and put it into use.

[0017] In order to solve the technical problem that the buffer form of ordinary transformer mounting base in the prior art is simple and cannot take into account both daily vibration isolation and extreme impact protection, the present application designs a multi-level buffer structure composed of a primary buffer component, a secondary buffer component and a tertiary buffer component, and has a time-triggered function. The primary buffer component achieves main vibration isolation, the secondary buffer component absorbs moderate impact, and the tertiary buffer component provides adaptive limit protection. It can effectively cope with everything from daily operation to extreme earthquakes, thereby improving the safety and reliability of transformer installation, extending equipment life, and solving the problems of single buffer performance and insufficient limit protection in the prior art. It is particularly suitable for substations with high requirements for seismic safety and operational stability, especially for power facilities located in seismic zones. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. 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 overall structure of one embodiment of this application; Figure 2 This is a front view structural diagram of one embodiment of this application; Figure 3 This is a side view of a structural diagram according to an embodiment of this application; Figure 4 This is a schematic diagram of the connection structure of the support plate according to one embodiment of this application; Figure 5 This is a side view of the primary buffer component according to one embodiment of this application; Figure 6 This is one embodiment of the present application. Figure 5 A magnified structural diagram of point A; Figure 7 This is a schematic diagram of the distribution structure of a secondary buffer component according to an embodiment of this application; Figure 8 This is a schematic diagram of the structure of a three-stage buffer component according to an embodiment of this application; Figure 9 This is a schematic diagram of the internal structure of a three-stage buffer component according to an embodiment of this application; Figure 10 This is one embodiment of the present application. Figure 9 A magnified structural diagram of point A; Figure 11 This is one embodiment of the present application. Figure 9 A magnified structural diagram of point B; Figure 12 This is a schematic diagram of the structure of the trigger section according to an embodiment of this application.

[0020] In the diagram: 1. Transformer body; 2. Support frame; 3. Cement foundation pile; 4. Support plate; 5. Primary buffer component; 6. Secondary buffer component; 601. Buffer damper; 602. First support plate; 603. Second support plate; 7. Tertiary buffer component; 701. First leg; 702. Trigger; 7021. Fixed sleeve; 7022. Adjusting rod; 7023. Contact part; 7024. Threaded sleeve; 7025. Adjusting screw; 7026. First bevel gear; 7027. Adjusting knob; 7028. Second bevel gear; 703. Support base; 704. Fixed guide rod; 705. Straight line 706. Slide; 707. Connecting frame; 708. Contact plate; 709. Second leg; 710. Friction guide rod; 711. Moving slider; 712. Connecting block; 713. Damping friction block; 714. Connecting spring; 715. Lifting slider; 716. Pressing slider; 717. Inclined slider; 718. Guide rod; 719. Linkage rod; 719. Moving limit part; 7191. Rectangular guide rod; 7192. Ratchet; 7193. Rectangular seat; 7194. Return spring; 7195. Side fixing shell; 7196. Positioning slider; 7197. Locking tenon; 7198. Sliding piece; 7199. Connecting spring. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0022] Please see Figure 1 Figure 2 and Figure 3 As shown, a transformer mounting base with multi-stage buffering and vibration reduction includes a transformer body 1, a support plate 4, and a cement pile 3. Several primary buffer components 5 and secondary buffer components 6 are fixedly installed between the cement pile 3 and the support plate 4. The primary buffer components 5 and secondary buffer components 6 are used to effectively isolate the continuous low-frequency vibration generated by the transformer body 1 during normal operation, and absorb the medium-energy vibration caused by short-circuit electrodynamics or common external impacts, so as to prevent the vibration from being transmitted to the cement pile 3 and generating noise. A three-stage buffer component 7 is also fixedly installed between the cement pile 3 and the support plate 4. The three-stage buffer component 7 includes a displacement triggering module and a damping buffering module. The displacement triggering module is used to be triggered when the transformer body 1 encounters an extreme event and generates a large displacement, and further drives the three-stage buffer component 7 to generate a frictional damping force that increases sharply with the increase of displacement, so as to dissipate huge impact energy and limit displacement, and prevent the transformer from overturning or structural damage.

[0023] This application designs a multi-stage buffer structure consisting of a primary buffer component 5, a secondary buffer component 6, and a tertiary buffer component 7, with a time-triggered function. The primary buffer component 5 achieves main vibration isolation, the secondary buffer component 6 absorbs moderate impacts, and the tertiary buffer component 7 provides adaptive limit protection. This structure can effectively cope with everything from daily operation to extreme earthquakes, thereby improving the safety and reliability of transformer installation, extending equipment life, and solving the problems of single buffer performance and insufficient limit protection in existing technologies. It is particularly suitable for substations with high requirements for seismic safety and operational stability, especially for power facilities located in seismic zones.

[0024] For specific technical solutions, please refer to Figure 1 and Figure 2 As shown, a support frame 2 is fixedly connected to both sides of the bottom surface of the transformer body 1. The two support frames 2 are fixedly connected to the support plate 4. Through this technical solution, the weight of the transformer body 1 is evenly transferred to the support plate 4 through the support frame 2, and then supported and buffered by the multi-level buffer structure below the support plate 4.

[0025] As a further technical solution, see Figure 5 and Figure 6 As shown, the primary buffer component 5 is a buffer spring. Specifically, this buffer spring is a helical steel spring with low stiffness. Its natural frequency is much lower than the main vibration frequency of the transformer body 1 during operation, thus effectively isolating low-frequency vibrations and bearing the main static load weight of the transformer body 1. This technical solution provides the most basic elastic support and the main daily vibration isolation function for the entire device.

[0026] As a preferred technical solution, please refer to Figure 6 and Figure 7As shown, the secondary buffer component 6 is a buffer damper 601. The bottom end of the buffer damper 601 is fixedly connected to the first support plate 602, and the upper end of the buffer damper 601 is fixedly connected to the second support plate 603. The primary buffer component 5 is disposed between the first support plate 602 and the second support plate 603. Through this technical solution, the primary buffer component 5 and the secondary buffer component 6 are connected in parallel to form a buffer support unit. When vibration occurs, the piston rod of the buffer damper 601 moves rapidly, and the viscous fluid inside generates huge resistance, converting the impact kinetic energy into heat energy and dissipating it, thereby effectively suppressing the excessive amplitude of the spring and accelerating vibration attenuation.

[0027] For a preferred technical solution, please refer to Figure 7 As shown, the number of secondary buffer components 6 and primary buffer components 5 is the same, and several secondary buffer components 6 and primary buffer components 5 are symmetrically distributed in an array between the support plate 4 and the cement pile 3. Specifically, this symmetrical parallel distribution ensures that the support stiffness at each point is consistent, the force flow is directly transmitted, and stress concentration is effectively avoided, thereby ensuring the ability to resist overturning and torsion.

[0028] For specific technical solutions, please refer to Figure 3 , Figure 4 and Figure 8 As shown, the displacement triggering module includes a triggering part 702, a connecting frame 706, a contact plate 707, and a linear slide block 705. First legs 701 are fixedly connected to both side walls of the support plate 4, and the triggering part 702 is fixedly connected to the bottom surface of the first legs 701. Damping buffer modules are fixedly connected to the four corners of the cement pile 3. Fixed guide rods 704 are fixedly connected to the side walls of the damping buffer modules. Linear slide blocks 705 are slidably connected to both sides of the fixed guide rods 704. Preferably, two fixed guide rods 704 are provided, both of which penetrate the linear slide block 705 and slide in cooperation with it. This double fixed guide rod structure ensures that the linear slide block 705 can only slide smoothly along the axial direction of the fixed guide rods 704, preventing jamming.

[0029] Furthermore, one end of a connecting frame 706 is rotatably connected to the upper surface of each of the two linear slide blocks 705. A contact plate 707 is provided between the other ends of the two connecting frames 706. Both connecting frames 706 are rotatably connected to the bottom surface of the contact plate 707. The contact plate 707 is located directly below the triggering part 702. Through this technical solution, when the displacement of the support plate 4 relative to the cement pile 3 reaches the preset safety gap, the triggering part 702 presses down on the contact plate 707. The contact plate 707 pushes the two linear slide blocks 705 to move along the fixed guide rod 704 through the two sets of connecting frames 706, thereby converting the vertical triggering action into a horizontal linear drive.

[0030] Preferably, in order to achieve precise adjustment of the trigger gap to adapt to different safety setting requirements, specifically, such as Figure 12 As shown, the triggering part 702 includes a fixed sleeve 7021, an adjusting rod 7022, and an adjusting screw 7025. The adjusting rod 7022 is slidably connected to the inner cavity of the fixed sleeve 7021. A contact part 7023 is fixedly connected to the bottom end of the adjusting rod 7022. The adjusting rod 7022 has an inner cavity, and a threaded sleeve 7024 is fixedly connected to the inner cavity of the adjusting rod 7022. The adjusting screw 7025 is rotatably connected to the upper wall of the inner cavity of the fixed sleeve 7021. The adjusting screw 7025 passes through the threaded sleeve 7024 and is threadedly engaged with the threaded sleeve 7024. The arc-shaped wall of the adjusting screw 7025 is also fixedly connected to... A first bevel gear 7026 is provided, and an adjustment knob 7027 is rotatably connected to the side wall of the fixed sleeve 7021. One end of the adjustment knob 7027 is fixedly connected to a second bevel gear 7028. The second bevel gear 7028 and the first bevel gear 7026 mesh with each other. Through this technical solution, rotating the adjustment knob 7027 can drive the adjustment screw 7025 to rotate through the bevel gear pair, thereby driving the threaded sleeve 7024 and the adjustment rod 7022 to extend or retract relative to the fixed sleeve 7021, thereby adjusting the initial safety gap between the contact part 7023 and the contact plate 707 to meet the needs of different application scenarios.

[0031] Preferably, in order to ensure that the adjusting knob 7027 automatically tightens after adjustment and prevents it from rotating on its own due to vibration, a rotational damping is provided between the adjusting knob 7027 and the fixed sleeve 7021. Specifically, a rubber sealing ring or a disc spring can be provided at the pivot of the adjusting knob 7027 to provide appropriate frictional resistance torque.

[0032] As a further technical solution, see Figure 9 and Figure 10As shown, the damping buffer module includes a support base 703, a friction guide rod 709, a movable slider 710, and a damping friction block 712. The support base 703 is fixed to the upper surface of the cement pile 3. Sliding movable sliders 710 are provided on both sides of the inner cavity of the support base 703. Preferably, the movable sliders 710 and the support base 703 are slidably engaged through guide grooves. A connecting block 711 is slidably connected to one side of the movable slider 710. A damping friction block 712 is fixedly connected to one end of the connecting block 711, and a connecting spring 713 is fixedly connected to the other end of the connecting block 711. The connecting spring 713 provides an initial preload, so that the damping friction block 712 and the friction guide rod 709 maintain a constant slight contact, generating basic damping. A second leg 708 is also fixedly connected to the side of the support plate 4. The friction guide rod 709 is fixedly connected to the bottom end of the second leg 708. The friction guide rod 709 extends between the two damping friction blocks 712. With the above structure, when the displacement triggering module drives the moving slider 710 to move towards each other, it will squeeze the damping friction block 712, so that it tightly hugs the friction guide rod 709 with positive pressure, thereby generating frictional resistance related to displacement to consume energy.

[0033] As a specific technical solution, the support base 703 is also provided with an inclined surface mechanism, which includes a lifting slider 714, a pressing slider 715, and an inclined surface slider 716. The lifting slider 714 is slidably connected in the inner cavity of the support base 703. The pressing slider 715 is fixedly connected to both sides of the upper surface of the lifting slider 714. The pressing slider 715 and the moving slider 710 are both provided with an inclined surface on one side, and the inclined surfaces of the two are in contact with each other. The bottom surface of the moving slider 710 is also provided with an inclined surface. The guide rod 717 is fixedly connected in the inner cavity of the support base 703. The inclined surface slider 716 is slidably connected to the guide rod 717. The inclined surface of the inclined surface slider 716 is in contact with the inclined surface of the lifting slider 714. One end of the linkage rod 718 is fixedly connected to the side wall of the inclined surface slider 716, and the other end of the linkage rod 718 is fixedly connected to the side wall of the linear slide block 705. Through this technical solution, the horizontal movement of the linear slide block 705 pushes the inclined slider 716 to slide along the guide rod 717 via the linkage rod 718. The inclined surface of the inclined slider 716 forces the lifting slider 714 to move upward. The lifting slider 714 then converts the vertical force into a horizontal force through the inclined surface of the pressing slider 715 on it, driving the moving sliders 710 on both sides to move towards the center, thereby converting the triggered displacement into a clamping force on the friction guide rod 709.

[0034] The three-stage buffer component 7 of this application is the last line of defense for the mounting base to cope with extreme loads. It can achieve the energy dissipation effect of "the greater the displacement, the stronger the damping". Specifically, when the transformer body 1 is running normally, the relative displacement between the support plate 4 and the cement pile 3 is small. At this time, the trigger part 702 in the displacement trigger module and the contact plate 707 maintain a preset safety gap, the linkage mechanism is in the non-triggered state, and the damping buffer module only provides a small basic damping and hardly participates in the work. When encountering extreme events such as strong earthquakes, causing the displacement of the support plate 4 to exceed the safety threshold, the trigger part 702 contacts the contact plate 707 and presses down. This vertical displacement is converted into horizontal linear motion by the connecting frame 706 and the linear slide 705. The motion of the linear slide 705 is transmitted through the linkage rod 718 to the inclined mechanism inside the damping buffer module, which consists of the inclined slider 716, the lifting slider 714 and the squeezing slider 715. This causes the initial triggering force to drive the moving sliders 710 on both sides to move towards each other, thereby squeezing the damping friction block 712 and making it hold the friction guide rod 709 fixed on the support plate 4 with positive pressure. During this process, the mechanical energy of the transformer body 1 impact displacement is continuously converted into heat energy through friction and dissipated into the atmosphere. The key is that the greater the displacement of the transformer body 1, the longer the downward stroke of the trigger part 702, and the greater the positive pressure that is ultimately applied to the friction guide rod 709 through linkage. The friction damping force generated also increases accordingly, forming a strong adaptive damping effect, which limits the displacement within a safe range, thereby effectively preventing the equipment from overturning.

[0035] Preferred options, please refer to Figure 11 As shown, in order to ensure that the contact plate 707 can be temporarily locked in its current position after being triggered and pressed down, maintaining a continuous state of increased resistance until manual reset, and avoiding repeated start-stop under oscillating loads, a movable limiting part 719 is also fixedly connected to the bottom surface of the contact plate 707. The movable limiting part 719 includes a rectangular guide rod 7191, a ratchet 7192, a rectangular seat 7193, and a latch 7197. The rectangular guide rod 7191 is fixedly disposed on the bottom surface of the contact plate 707, and the rectangular seat 7193 is fixedly disposed on the upper surface of the cement pile 3. The rectangular guide rod 7191 extends into the inner cavity of the rectangular seat 7193 and slides with the rectangular seat 7193. One end of a return spring 7194 is fixedly connected to the bottom surface of the rectangular guide rod 7191, and the other end of the return spring 7194 is fixedly connected to the bottom wall of the inner cavity of the rectangular seat 7193. With this technical solution, when the trigger part 702 presses down on the contact plate 707, the rectangular guide rod 7191 moves downward accordingly, compressing the reset spring 7194.

[0036] For further details, please refer to [link / reference]. Figure 11As shown, the sidewall of the rectangular guide rod 7191 is also provided with several ratchet teeth 7192. The sidewall of the rectangular seat 7193 is fixedly connected to a side fixing shell 7195. A positioning slider 7196 is slidably connected in the inner cavity of the side fixing shell 7195. One end of a latch 7197 is fixedly connected to the sidewall of the positioning slider 7196. The other end of the latch 7197 extends to the ratchet teeth 7192. A connecting spring 7199 is fixedly connected to the other side of the positioning slider 7196. A slider 7198 is slidably connected to the upper surface of the side fixing shell 7195. The slider 7198 is fixedly connected to the positioning slider 7196. With this technical solution, when the rectangular guide rod 7191 moves downward, the inclined surface of the ratchet 7192 can push the latch 7197 to temporarily retract, allowing it to move downward; when it attempts to rebound after impact, the latch 7197 will lock onto the vertical surface of the ratchet 7192, preventing the rectangular guide rod 7191 and the contact plate 707 from rebounding, thereby maintaining the trigger state of the three-level buffer. When a reset is required, the slider 7198 is manually slid, causing the positioning slider 7196 and the latch 7197 to move backward against the force of the connecting spring 7199, disengaging them from the ratchet 7192. At this time, under the elastic force of the reset spring 7194, the rectangular guide rod 7191 and the contact plate 707 can be reset to their initial height.

[0037] Specifically, the construction method for the transformer mounting base with multi-stage buffer and vibration damping includes the following steps: S1. Before construction, the plan position, elevation, and surface flatness of the cement pile 3 are inspected to ensure they meet the design requirements. Then, the cement pile 3 is reliably fixed in the preset foundation position. Subsequently, the primary buffer component 5 and the secondary buffer component 6 are fixedly installed on the cement pile 3. S2. Use lifting equipment to hoist the transformer body 1, which has been assembled with the support plate 4, and lower it smoothly until the support plate 4 is reliably supported by the primary buffer component 5 and the secondary buffer component 6. S3. The damping buffer module is fixedly installed at the designed position of the cement pile 3; S4. Install the displacement trigger module to ensure that there is an initial safety clearance as required by design between the trigger part 702 and the contact plate 707; S5. Precisely adjust the trigger gap by operating the adjustment knob 7027 on the trigger part 702 to drive the adjustment screw 7025 to rotate, thereby precisely adjusting the vertical distance between the lower end face of the contact part 7023 and the upper surface of the contact plate 707 to ensure that it meets the safety gap value specified in the design. S6. Manually simulate the trigger action to check whether the linear slide 705, connecting bracket 706, and inclined slider 716 move smoothly and ensure that there is no jamming. S7. After checking that all connections are secure, power on the transformer for testing. Under normal transformer operation, observe the vibration isolation effect of the base. Simulated impact tests can be performed to verify whether the three-stage buffer component 7 can be triggered normally and produce the expected damping effect under the set displacement. After the test, if the three-stage buffer component 7 has been triggered, operate the slider 7198 of the moving limit part 719 to disengage the latch 7197 from the ratchet 7192. Under the action of the return spring 7194, the entire displacement trigger module is reset to the standby state. Clean up the site and put it into use.

[0038] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A transformer mounting pedestal with multi-stage cushioning shock absorption, comprising a transformer main body (1), a support plate (4) and a cement-based pile (3), characterized in that: The cement-based pile (3) and the support plate (4) are fixedly provided with a plurality of first-level buffer components (5) and second-level buffer components (6); The first-level buffer components (5) and the second-level buffer components (6) are used for buffering and isolating the transformer main body (1) in normal operation; The cement-based pile (3) and the support plate (4) are further fixedly provided with third-level buffer components (7), the third-level buffer components (7) comprise displacement triggering modules and damping buffer modules, the displacement triggering modules are used for triggering when the transformer main body (1) breaks through a displacement threshold, and driving the damping buffer modules to generate a frictional damping force that increases with the increase of displacement.

2. The transformer mounting pad with multi-stage cushioning and shock absorption according to claim 1, characterized in that: Both sides of the bottom surface of the transformer main body (1) are fixedly connected with support chassis (2), and the two support chassis (2) are fixedly connected between the support plate (4).

3. The transformer mounting pad with multi-stage cushioning and shock absorption according to claim 1, characterized in that: The first-level buffer components (5) are spiral steel springs.

4. The transformer mounting pad with multi-stage cushioning and shock absorption according to claim 1 or 3, characterized in that: The second-level buffer components (6) are buffer dampers (601), the buffer dampers (601) are fixedly connected with first support plates (602) at bottom ends, the buffer dampers (601) are fixedly connected with second support plates (603) at upper ends, and the first-level buffer components (5) are arranged between the first support plates (602) and the second support plates (603).

5. The transformer mounting pad with multi-stage cushioning and shock absorption of claim 1, wherein: The second-level buffer components (6) and the first-level buffer components (5) are the same in number and are arrayed and symmetrically distributed between the support plate (4) and the cement-based pile (3).

6. The transformer mounting pad with multi-stage cushioning and shock absorption of claim 1, wherein: The displacement triggering modules comprise triggering portions (702) fixed on the support plate (4), fixed guide rods (704) arranged on the cement-based pile (3), straight-line sliding seats (705) slidingly connected to the fixed guide rods (704), connecting frames (706) rotationally connected to the straight-line sliding seats (705), and contact plates (707) rotationally connected to the other ends of the connecting frames (706), and the contact plates (707) are located directly below the triggering portions (702).

7. The transformer mounting pad with multi-stage cushioning and shock absorption according to claim 6, characterized in that: The triggering portions (702) comprise fixed sleeve rods (7021), adjusting rods (7022) and adjusting screw rods (7025), the adjusting rods (7022) are slidingly connected in the fixed sleeve rods (7021), the adjusting screw rods (7025) are in threaded connection with threaded sleeves (7024) in the adjusting rods (7022), the adjusting screw rods (7025) are connected with adjusting knobs (7027) through bevel gear pairs, and rotating the adjusting knobs (7027) can drive the adjusting rods (7022) to extend or retract to adjust the gap with the contact plates (707).

8. The transformer mounting pad with multi-stage cushioning and shock absorption according to claim 1 or 6, characterized in that: The damping buffer modules comprise support seats (703) fixed on the cement-based pile (3), friction guide rods (709) fixed on the support plate (4), and movable sliding blocks (710) slidingly arranged in the support seats (703). The mobile slider (710) is connected with a damping friction block (712), the damping friction block (712) is located on both sides of the friction guide rod (709); The support seat (703) is provided with a slope mechanism, the mobile slider (710) is connected with the slope mechanism, the slope mechanism is provided with a linkage rod (718), the slope mechanism is connected with the linear slide (705) of the displacement trigger module through the linkage rod (718), for converting the horizontal movement of the linear slide (705) into the opposite movement of the two mobile sliders (710), so that the damping friction block (712) clamps the friction guide rod (709) to generate frictional damping.

9. The transformer mounting pad with multi-stage cushioning and shock absorption of claim 6, wherein: The bottom surface of the contact plate (707) is fixedly connected with a moving limiting part (719), the moving limiting part (719) includes a rectangular guide rod (7191) fixed to the contact plate (707) and a rectangular seat (7193) arranged on the cement-based pile (3); The rectangular guide rod (7191) is slidably arranged in the rectangular seat (7193), the rectangular guide rod (7191) is provided with a ratchet (7192), and the rectangular seat (7193) is provided with a tenon (7197) capable of being clamped into the ratchet (7192), so as to prevent the rectangular guide rod (7191) from rebounding.

10. The multi-stage cushioning and shock absorbing transformer mounting base according to any one of claims 1-9, resulting in a construction method of a multi-stage cushioning and shock absorbing transformer mounting base, characterized in that: The construction method of the transformer mounting base with multi-stage buffer damping comprises the following steps: S1. Before construction, the planar position, elevation and surface flatness of the cement-based pile (3) are checked to ensure that the design requirements are met, and then the cement-based pile (3) is reliably fixed at the preset foundation position; Then, the first buffer part (5) and the second buffer part (6) are fixedly installed on the cement-based pile (3); S2. The transformer main body (1) assembled with the support plate (4) is hoisted as a whole using a hoisting device, and is stably lowered until the support plate (4) is reliably supported by the first buffer part (5) and the second buffer part (6); S3. The damping buffer module is fixedly installed at the designed position of the cement-based pile (3); S4. The displacement trigger module is installed to ensure that there is an initial safety gap between the trigger part (702) and the contact plate (707) as required by the design; S5. The trigger gap is accurately adjusted, the adjusting knob (7027) on the trigger part (702) is operated to drive the adjusting screw (7025) to rotate, so that the vertical distance between the lower end surface of the contact part (7023) and the upper surface of the contact plate (707) is accurately adjusted, and the safety gap value meeting the design requirements is ensured; S6. The trigger action is simulated manually, and whether the linear slide (705), the connecting frame (706) and the slope slider (716) move smoothly is checked to ensure that there is no jamming phenomenon. S7. After checking that all the connecting parts are fastened correctly, the transformer is sent to the power debugging. In the normal operation state of the transformer, the base vibration isolation effect is observed; and the simulation impact test can be carried out to verify whether the three-stage buffer component (7) can normally trigger and produce the expected damping effect under the set displacement. After the test is completed, if the three-stage buffer component (7) has been triggered, the slide (7198) of the moving limiting part (719) is operated to make the tenon (7197) and the ratchet (7192) disengage. Under the action of the reset spring (7194), the entire displacement triggering module is reset to the standby state, the site is cleaned up, and the transformer is delivered for use.

Images