Lossless mounting structure of detachable equipment cushion block, gravity rack and mounting method

Abstract

The invention relates to the technical field of hydroelectric generating set hoisting, and provides a lossless mounting structure of a detachable equipment cushion block, a gravity rack and a mounting method.The lossless mounting structure of the detachable equipment cushion block comprises a cushion block assembly detachably fixed to an equipment base body through a connecting assembly; the cushion block assembly comprises a cushion block body provided with at least one first connecting hole, a first connecting plate and a second connecting plate, and the first connecting plate and the second connecting plate are fixedly arranged on the two sides of the cushion block body in the length direction of the cushion block body respectively; according to the connecting assembly, a first bolt penetrates through a first connecting hole and connects the cushion block body with the equipment base body; the second bolt sequentially penetrates through the second connecting hole and the first mounting hole in the annular support and is screwed with the first nut; and a third bolt sequentially penetrates through the third connecting hole and a second mounting hole in the annular bracket and is screwed with a second nut. Through the design of the cushion block assembly and the connecting assembly, the cushion block is lossless, adjustable, rapid to disassemble and assemble and reliable to fix.

Description

Technical Field

[0001] This application relates to the field of hydraulic generator set hoisting technology, and more specifically, to a non-destructive installation structure for detachable equipment pads, a gravity frame, and an installation method. Background Technology

[0002] In existing technologies, equipment pads are generally fixed directly to the equipment base by welding. While this method provides a secure connection, it has significant drawbacks. During equipment inspection, maintenance, or replacement of the pads, destructive removal through cutting, grinding, or other methods is necessary. This process is time-consuming and labor-intensive, causing irreversible damage to the equipment base, resulting in weld scars and stress concentration points, affecting the structural integrity and aesthetics of the equipment. Furthermore, in installation scenarios involving high altitudes and confined spaces, such as the gravity frame of a hydroelectric generator set, workers must perform welding and cutting operations in extremely restricted positions. This is not only highly inefficient, with the removal of a single pad taking 30 to 50 minutes, but also carries high safety risks such as falls from heights and sparks. Welding also completely eliminates the possibility of subsequent adjustment of the pad's position, failing to meet the need for fine-tuning the elevation during equipment installation. Therefore, there is an urgent need for a pad fixing structure that enables rapid, non-destructive installation and disassembly, allowing for positional adjustments, to improve equipment maintenance efficiency, ensure operational safety, and reduce maintenance costs. Summary of the Invention

[0003] This application aims to at least solve the technical problem in the related art where, during the hoisting process of a gravity frame for a hydro-generator unit, the traditional method of fixing the pads to the ring support of the frame by welding requires hot work and cutting during disassembly, which results in the workers having to perform welding and cutting operations in extremely restricted postures, leading to low efficiency and safety risks.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows: In a first aspect, this application provides a non-destructive installation structure for a detachable equipment pad, comprising: an equipment base, on which an annular bracket is provided; and a pad assembly, which is detachably fixed to the equipment base via a connecting assembly; wherein the pad assembly comprises: a pad body, on which at least one first connecting hole is provided; a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate being respectively fixedly disposed on both sides of the pad body along its length direction, and the first connecting plate being provided with a second connecting hole and the second connecting plate being provided with a third connecting hole; the connecting assembly comprises: a first bolt, which passes through the first connecting hole and connects the pad body to the equipment base; a second bolt, which passes sequentially through the second connecting hole and a first mounting hole on the annular bracket, and is screwed with a first nut to press the first connecting plate against the annular bracket; and a third bolt, which passes sequentially through the third connecting hole and a second mounting hole on the annular bracket, and is screwed with a second nut to press the second connecting plate against the annular bracket.

[0005] This application provides a non-destructive installation structure for a detachable equipment pad. Through innovative design of the pad assembly and connecting components, it achieves non-destructive, adjustable, rapid assembly and disassembly, and reliable fixation of the pad. In scenarios requiring non-destructive connection and rapid assembly / disassembly, the connecting components utilize multiple bolts and nuts, replacing traditional welding methods. Operators only need to tighten or loosen the first, second, and third bolts to complete the installation and disassembly of the pad assembly. The entire process requires no open flame work and will not cause any damage to the equipment base, fundamentally solving the problem of destructive removal and reducing the single operation time from tens of minutes to a few minutes. In scenarios requiring structural reinforcement and multi-point reliable fixation, the pad assembly adds a first connecting plate and a second connecting plate on both sides of the pad body, which, together with the first connecting hole on the pad body, form a stable three-point connection structure. This design transforms the traditional single concentrated force into distributed multi-point force. The second and third bolts tightly press the connecting plates on both sides onto the annular support of the equipment base, greatly enhancing the rigidity and stability of the connection and effectively resisting vibration and load during operation. In scenarios where the installation position is adjustable, by adding adjusting shims of different thicknesses between the first connecting plate, the second connecting plate and the ring bracket, or between the main body of the shim and the equipment base, the installation height and level of the shim can be easily fine-tuned, meeting the high precision requirements of equipment installation. These functions cannot be achieved by welding fixing methods.

[0006] Secondly, this application proposes a gravity frame for a hydro-generator, including: a non-destructive installation structure for detachable equipment pads as described above.

[0007] The gravity frame for the hydro-generator provided in this application has all the beneficial effects of the non-destructive installation structure of the detachable equipment pads in the above-mentioned technical solution, which will not be elaborated here.

[0008] Thirdly, this application proposes an installation method for a non-destructive installation structure of a detachable equipment pad, used for the non-destructive installation structure of the detachable equipment pad as described above. The installation method of the non-destructive installation structure of the detachable equipment pad includes the following steps: S1, positioning the pad assembly to a preset installation position on the equipment base; S2, passing a first bolt through a first connecting hole on the pad body and initially connecting the pad body to the equipment base; S3, passing a second bolt sequentially through a second connecting hole on a first connecting plate and a first mounting hole on a ring bracket, and engaging it with a first nut pre-set on the ring bracket; S4, passing a third bolt sequentially through a third connecting hole on a second connecting plate and a second mounting hole on the ring bracket, and engaging it with a second nut pre-set on the ring bracket; S5, tightening the first bolt, the second bolt, and the third bolt sequentially according to a preset torque, thereby detachably fixing the pad assembly to the equipment base.

[0009] The installation method of the non-destructive installation structure of the removable equipment pad provided in this application has all the beneficial effects of the non-destructive installation structure of the removable equipment pad used in the above scheme, and will not be repeated here.

[0010] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0011] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a partial structural schematic diagram of the gravity frame of a hydro-generator according to an embodiment of this application; Figure 2 for Figure 1 An enlarged structural schematic diagram of part A of the gravity frame of the hydro-generator in the embodiment shown; Figure 3 for Figure 1 One of the structural schematic diagrams of the non-destructive installation structure of the detachable equipment pad in the gravity frame of the hydro-generator shown in the embodiment; Figure 4 for Figure 1 The second schematic diagram of the non-destructive installation structure of the detachable equipment pad in the gravity frame of the hydro-generator shown in the embodiment; Figure 5This is a flowchart illustrating a non-destructive installation method for a removable device pad according to an embodiment of this application.

[0012] in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows: 100 Equipment base, 110 Ring support, 200 Pad assembly, 210 Pad body, 211 First connecting hole, 220 First connecting plate, 221 Second connecting hole, 230 Second connecting plate, 231 Third connecting hole, 300 Connecting assembly, 310 First bolt, 320 Second bolt, 330 First nut, 340 Third bolt, 350 Second nut, 360 Anti-loosening washer, 370 Adjusting shim, 400 Gravity frame of hydro-generator. Detailed Implementation

[0013] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0014] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0015] The following reference Figures 1 to 5 This application describes the non-destructive installation structure of the removable equipment pad, the gravity frame 400 of the hydro-generator, and the installation method of the non-destructive installation structure of the removable equipment pad according to some embodiments of the present application. Figure 1 This is a partial structural schematic diagram of a gravity frame 400 for a hydro-generator according to an embodiment of this application; Figure 2 for Figure 1 An enlarged structural schematic diagram of part A of the gravity frame 400 of the hydro-generator in the embodiment shown; Figure 3 for Figure 1 One of the structural schematic diagrams of the non-destructive installation structure of the detachable equipment pad in the gravity frame 400 of the hydro-generator shown in the embodiment; Figure 4 for Figure 1 The second schematic diagram of the non-destructive installation structure of the detachable equipment pad in the gravity frame 400 of the hydro-generator shown in the embodiment; Figure 5 This is a flowchart illustrating a non-destructive installation method for a removable device pad according to an embodiment of this application.

[0016] According to the first aspect of this application, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, one embodiment of this application provides a non-destructive installation structure for a detachable equipment pad, comprising: an equipment base 100, on which an annular bracket 110 is disposed; and a pad assembly 200, which is detachably fixed to the equipment base 100 via a connecting assembly 300; wherein the pad assembly 200 includes: a pad body 210, on which at least one first connecting hole 211 is disposed; a first connecting plate 220 and a second connecting plate 230, the first connecting plate 220 and the second connecting plate 230 being respectively fixedly disposed on both sides of the pad body 210 along its length direction, and the first connecting plate 220 being provided with a second connecting hole 221. The second connecting plate 230 is provided with a third connecting hole 231; the connecting assembly 300 includes: a first bolt 310, which passes through the first connecting hole 211 and connects the pad body 210 to the equipment base 100; a second bolt 320, which passes through the second connecting hole 221 and the first mounting hole on the annular bracket 110 in sequence, and is screwed with the first nut 330 to press the first connecting plate 220 against the annular bracket 110; and a third bolt 340, which passes through the third connecting hole 231 and the second mounting hole on the annular bracket 110 in sequence, and is screwed with the second nut 350 to press the second connecting plate 230 against the annular bracket 110.

[0017] like Figure 1 , Figure 2 and Figure 3 As shown, the non-destructive installation structure for the detachable equipment pad provided in this application includes an equipment base 100, a pad assembly 200, and a connecting assembly 300. An annular bracket 110 is provided on the equipment base 100, and the pad assembly 200 is detachably fixed to the equipment base 100 via the connecting assembly 300. The pad assembly 200 includes a pad body 210, a first connecting plate 220, and a second connecting plate 230. The pad body 210 has at least one first connecting hole 211. The first connecting plate 220 and the second connecting plate 230 are respectively fixedly disposed on both sides of the pad body 210 along its length direction, with the first connecting plate 220 having a second connecting hole 221 and the second connecting plate 230 having a third connecting hole 231. The connecting assembly 300 includes a first bolt 310, a second bolt 320, and a third bolt 340. The first bolt 310 passes through the first connecting hole 211 and connects the pad body 210 to the equipment base 100; the second bolt 320 passes through the second connecting hole 221 and the first mounting hole on the annular bracket 110 in sequence, and is screwed with the first nut 330 to press the first connecting plate 220 against the annular bracket 110; the third bolt 340 passes through the third connecting hole 231 and the second mounting hole on the annular bracket 110 in sequence, and is screwed with the second nut 350 to press the second connecting plate 230 against the annular bracket 110.

[0018] In this way, the pad body 210, together with the first connecting plates 220 and the second connecting plates 230 on both sides, forms a stable mounting base. The connecting assembly 300, composed of the first bolt 310, the second bolt 320, and the third bolt 340, achieves multi-point detachable connection with the annular bracket 110 of the equipment base 100, completely eliminating the traditional welding fixing method. This disperses the concentrated force to three independent connection points, and the bolt preload ensures that each connecting plate is tightly fitted to the bracket surface, forming a reliable mechanical fixation. This structure enables non-destructive installation and removal of the pad, avoiding damage to the equipment body caused by cutting and welding. It also provides a basis for fine-tuning the height of the pad, significantly improving the efficiency and safety of installation and maintenance.

[0019] Compared with existing technologies, the non-destructive installation structure of the detachable equipment pad provided in this application has the following advantages: First, it achieves truly non-destructive installation and disassembly. By replacing welding with bolt connections, disassembly only requires loosening the bolts, protecting 100% integrity of the equipment base and avoiding the extra work of repairing weld scars. Second, the connection is reliable and highly stable. The three-point fixing method effectively enhances the vibration resistance and load-bearing capacity of the pad during equipment operation and prevents loosening. Third, it is adjustable. By adding shims at the connection, the installation height of the pad can be easily fine-tuned, meeting the precise alignment requirements of equipment installation, and has strong versatility and practicality.

[0020] Specifically, in current technologies, equipment pads are generally fixed directly to the equipment base by welding. While this method provides a secure connection, it has significant drawbacks. During equipment inspection, maintenance, or replacement of the pads, destructive removal through cutting and grinding is necessary. This process is time-consuming and labor-intensive, causing irreversible damage to the equipment base, resulting in weld scars and stress concentration points, affecting the structural integrity and aesthetics of the equipment. Furthermore, in installation scenarios involving high altitudes and confined spaces, such as the gravity frame of a hydroelectric generator set, workers must perform welding and cutting operations in extremely restricted positions. This is not only highly inefficient, with the removal of a single pad taking 30 to 50 minutes, but also carries high safety risks such as falls from heights and sparks. Welding also completely eliminates the possibility of subsequent adjustment of the pad's position, failing to meet the need for fine-tuning the elevation during equipment installation. Therefore, there is an urgent need for a pad fixing structure that enables rapid, non-destructive installation and disassembly, allowing for positional adjustments, to improve equipment maintenance efficiency, ensure operational safety, and reduce maintenance costs.

[0021] To address the shortcomings of existing technologies, this application aims to provide a non-destructive installation structure for a detachable equipment pad. Through the innovative design of the pad assembly 200 and the connecting assembly 300, non-destructive, adjustable, rapid assembly and disassembly, and reliable fixation of the pad are achieved. In scenarios requiring non-destructive connection and rapid assembly / disassembly, the connecting assembly 300 utilizes multiple bolts and nuts, replacing traditional welding methods. Operators only need to tighten or loosen the first bolt 310, the second bolt 320, and the third bolt 340 to complete the installation and disassembly of the pad assembly 200. The entire process requires no open flame work and will not cause any damage to the equipment base 100, fundamentally solving the problem of destructive removal and reducing the single operation time from tens of minutes to a few minutes. In scenarios requiring structural reinforcement and multi-point reliable fixation, the pad assembly 200 adds a first connecting plate 220 and a second connecting plate 230 on both sides of the pad body 210, which, together with the first connecting hole 211 on the pad body 210, form a stable three-point connection structure. This design transforms the traditional single-point concentrated force application into a distributed multi-point force application. The second bolt 320 and the third bolt 340 tightly press the connecting plates on both sides onto the annular bracket 110 of the equipment base 100, greatly enhancing the rigidity and stability of the connection and effectively resisting vibrations and loads during operation. In scenarios where the installation position is adjustable, by setting anti-loosening shims 360 between the first connecting plate 220, the second connecting plate 230, and the annular bracket 110, and by adding adjusting shims 370 of different thicknesses between the shim body 210 and the equipment base 100, the installation height and level of the shim can be easily fine-tuned, meeting the high-precision requirements of equipment installation.

[0022] In some embodiments, optionally, such as Figure 3 and Figure 4 As shown, the first connecting plate 220 and the second connecting plate 230 are fixed to both sides of the pad body 210 by welding.

[0023] Specifically, such as Figure 3 and Figure 4 As shown, the first connecting plate 220 and the second connecting plate 230 are welded to the pad body 210 to form a non-removable and robust connection. The welding creates a metallurgically bonded weld at the connection interface, fusing the pad body 210 and the two connecting plates into a single rigid structure, thereby greatly enhancing the structural strength and integrity of the pad assembly 200. This ensures that when connected to the equipment base 100 by bolts, the two connecting plates can effectively transfer the fastening force to the entire pad body 210, avoiding loosening or relative displacement that may occur with mechanical connections, and providing a stable and reliable foundation for the entire installation structure.

[0024] In some embodiments, optionally, such as Figure 2 and Figure 3As shown, the first connecting plate 220 and the second connecting plate 230 are rectangular steel plates.

[0025] Specifically, such as Figure 3 As shown, both the first connecting plate 220 and the second connecting plate 230 are made of rectangular steel plates. Due to the ease of processing and uniform stress distribution of the regular rectangular geometry, it provides the maximum effective contact and bearing area for bolted connections. This reduces the manufacturing cost and process complexity of the connecting plates, while ensuring uniform stress distribution on their contact surface with the annular bracket 110, effectively avoiding localized stress concentration. Furthermore, the regular shape facilitates positioning and alignment during installation, improving the reliability, economy, and ease of assembly of the entire installation structure.

[0026] In some embodiments, optionally, such as Figure 1 and Figure 2 As shown, the first nut 330 and the second nut 350 are weld nuts, which are pre-welded onto the annular bracket 110.

[0027] Specifically, such as Figure 2 As shown, the first nut 330 and the second nut 350 are pre-fixed to their corresponding positions on the annular bracket 110 by welding. Welding permanently fixes the nuts to the base, providing a precise and robust pre-threaded foundation for subsequent bolt connections. This eliminates the need for operators to provide additional support or search for nuts in confined spaces when installing the pad assembly 200; bolts can be directly screwed in, greatly simplifying the assembly process and improving installation efficiency. Furthermore, the welded nuts eliminate the possibility of loosening or falling off, ensuring the stability and reliability of the connection pair and thus enhancing the long-term safety of the entire installation structure.

[0028] In some embodiments, optionally, such as Figure 2 As shown, the central axis of the first nut 330 corresponds to the central axis of the second connecting hole 221, and the central axis of the second nut 350 corresponds to the central axis of the third connecting hole 231.

[0029] Specifically, such as Figure 2As shown, the central axis of the first nut 330 is precisely aligned with the central axis of the second connecting hole 221, and the central axis of the second nut 350 is precisely aligned with the central axis of the third connecting hole 231. By precisely aligning the axes of the nuts with the axes of the connecting holes on the connecting plate, it is ensured that during assembly, the second bolt 320 and the third bolt 340 can pass through the connecting holes and the mounting holes on the annular bracket 110 without obstruction, and smoothly screw into the corresponding nuts. This achieves a "blind installation" effect for the bolts, simplifies installation operations in environments with limited visibility or narrow spaces, avoids problems such as thread seizure, bolt jamming, or installation difficulties caused by hole position deviations, and greatly improves the convenience, efficiency, and reliability of assembly.

[0030] In some embodiments, optionally, such as Figure 3 and Figure 4 As shown, anti-loosening washers 360 are provided between the second bolt 320 and the first connecting plate 220, and between the third bolt 340 and the second connecting plate 230.

[0031] Specifically, such as Figure 4 As shown, anti-loosening washers 360 are provided between the contact surfaces of the second bolt 320 and the first connecting plate 220, and between the contact surfaces of the third bolt 340 and the second connecting plate 230. Because the anti-loosening washer 360, through its special elastic or locking structure, continuously applies a reverse force to the connected components after the bolts are tightened, it effectively compensates for the preload reduction that may be caused by equipment vibration, load changes, and other factors. This design improves the anti-loosening performance of the bolt connection pair, preventing bolt loosening or even detachment due to vibration during long-term equipment operation. It ensures the long-term stability and reliability of the connection between the pad assembly 200 and the equipment base 100, reduces maintenance requirements, and enhances the safety of equipment operation.

[0032] In some embodiments, optionally, such as Figure 4 As shown, an adjusting shim 370 for adjusting the installation height is provided between the shim body 210 and the equipment base 100.

[0033] Specifically, such as Figure 4As shown, adjusting shims 370 for adjusting the installation height are provided between the mounting surfaces of the pad body 210 and the equipment base 100. By selecting adjusting shims 370 of different thicknesses or numbers and inserting them into the gap between the pad body 210 and the equipment base 100, assembly tolerances can be precisely compensated and the overall installation height of the pad assembly 200 can be changed. The purpose of this design is threefold: first, to achieve precise fine-tuning of the installation height and ensure the accuracy requirements of equipment installation; second, to make the adjustment process simple and quick, requiring only the replacement of the shims without any machining of the pad or base; and third, to maintain the characteristics of non-destructive installation, as the adjustment process will not cause any structural damage to the pad body 210 or the equipment base 100.

[0034] In some embodiments, optionally, such as Figure 2 and Figure 3 As shown, the first connecting hole 211, the second connecting hole 221 and the third connecting hole 231 have the same diameter.

[0035] Specifically, such as Figure 2 As shown, the first connecting hole 211 on the main body 210, the second connecting hole 221 on the first connecting plate 220, and the third connecting hole 231 on the second connecting plate 230 have the same diameter. Specifically, the diameter of the first connecting hole 211, the second connecting hole 221, and the third connecting hole 231 is Φ30mm. By standardizing the diameter of all functional connecting holes to a standard size, the bolt specifications in the connecting assembly 300 are standardized. The purpose of this design is twofold: first, it simplifies the processing steps. When manufacturing the pad assembly 200, all holes can be machined using the same specification of drill bit or tool, improving production efficiency and reducing manufacturing costs; second, during on-site installation and maintenance, operators only need to be equipped with a single specification of bolt, simplifying spare parts management and tool preparation, effectively avoiding bolt misuse or assembly errors caused by inconsistent hole diameters, and greatly improving the convenience and reliability of assembly.

[0036] In some embodiments, the pad assembly 200 may be made of cast iron or steel.

[0037] Specifically, cast iron possesses excellent casting properties and shock absorption characteristics, while steel exhibits higher strength and toughness. Both materials can meet the mechanical performance requirements of equipment pads in terms of load-bearing capacity, impact resistance, and structural stability. The purpose of making the pad assembly 200 from cast iron or steel is threefold: First, to ensure that the pad assembly 200 possesses sufficient mechanical strength and load-bearing capacity to stably support equipment loads over a long period; second, the excellent wear resistance and durability of the materials extend the service life of the pads, adapting them to long-term use in industrial environments; third, both cast iron and steel have good machinability, facilitating drilling, welding, and other post-processing of the pad body 210 and connecting plates, ensuring the accuracy and reliability of the structural forming; and fourth, these two materials are relatively economical in cost and have mature manufacturing processes, which helps control production costs and promotes the widespread application of this structure.

[0038] In practical applications, the steps for hoisting the gravity frame 400 of the hydro-generator using the non-destructive installation structure with detachable equipment pads provided in this application are as follows: First, make new gravity frame pads.

[0039] To replace welding with bolted connection pads, a new pad block for the gravity frame needs to be made. This pad block can be firmly connected to the gravity frame 400 of the hydro-generator and can also be connected to the nut of the ring bracket 110.

[0040] Original pad structure: There are already Φ30mm threaded holes on both sides (for connecting the aircraft frame, i.e., the equipment base 100).

[0041] New structure: Steel plates with a width, length, and height of 100mm × 150mm × 12mm are welded to both sides of the original pad structure, and a Φ30mm threaded hole is machined in the center of the steel plate. The new hole is used for bolting the ring bracket 110 on the gravity frame to enhance stability.

[0042] Second, add nuts.

[0043] The new pad has been manufactured. Next, an M30 nut needs to be precisely welded to the corresponding position on the annular bracket 110 of the gravity support. The purpose of this nut is to ensure a stable connection between the new pad and the annular bracket 110, thereby ensuring the stability and functionality of the entire structure.

[0044] Third, verify the effect.

[0045] The new gravity frame pads underwent tensile and load tests. After passing the tests, they were put into use. The purpose of the tensile test was to verify the vibration and load tests performed after the trial assembly.

[0046] Fix the spacer block on the tensile testing machine. Pass the bolt through the Φ30mm threaded hole and tighten it to the standard pre-tightening force. Apply axial tension to the bolt using a special fixture. At 100% rated load, the bolt does not slip, the hole of the spacer block has no plastic deformation, and the weld does not crack. After拆卸the bolt, the thread and the hole wall are intact. Inspect by magnetic particle testing, and there are no hidden cracks. Therefore, the tensile test is qualified.

[0047] Purpose of the load test: Verify the structural stability of the spacer block under the actual working load and verify the structural stability of the spacer block under the actual working load.

[0048] Install the spacer block on the test bench according to the actual working conditions. Tighten the bolts to the standard torque and attach strain gauges at the key positions of the spacer block. At 100% load, the deformation of the spacer block ≤ the design allowable value, and there are no phenomena such as weld cracking, bolt loosening or steel plate buckling. Therefore, the load test is qualified. Through the tensile test and the load test, the reliability of the new spacer block is comprehensively verified.

[0049] According to the second aspect of the present application, as Figure 1 shown, a hydro-generator gravity frame 400 is further proposed, including: a non-destructive installation structure of the detachable equipment spacer block in the above-mentioned embodiment.

[0050] The hydro-generator gravity frame 400 provided by the present application includes the non-destructive installation structure of the detachable equipment spacer block in the above-mentioned embodiment, and thus has all the beneficial effects of the non-destructive installation structure of the detachable equipment spacer block, which will not be elaborated here.

[0051] According to the third aspect of the present application, as Figure 5 shown, the embodiment of the present application further proposes an installation method for the non-destructive installation structure of the detachable equipment spacer block, which is used for the non-destructive installation structure of the detachable equipment spacer block in the above-mentioned embodiment. The installation method of the non-destructive installation structure of the detachable equipment spacer block includes the following steps: S1. Locate the spacer block assembly at the preset installation position of the equipment base; S2. Pass the first bolt through the first connection hole on the spacer block body and make a preliminary connection between the spacer block body and the equipment base; S3. Pass the second bolt through the second connection hole on the first connecting plate and the first installation hole on the annular bracket in sequence, and thread it with the first nut pre-set on the annular bracket; S4. Pass the third bolt through the third connection hole on the second connecting plate and the second installation hole on the annular bracket in sequence, and thread it with the second nut pre-set on the annular bracket; S5. Tighten the first bolt, the second bolt and the third bolt in sequence according to the preset torque, so as to detachably fix the spacer block assembly on the equipment base.

[0052] Specifically, as Figure 5 shown, an installation method for the non-destructive installation structure of the detachable equipment spacer block provided by the present application includes the following steps: S1. Position the pad assembly to the preset installation position on the equipment base; S2. Pass the first bolt through the first connecting hole on the main body of the pad and make a preliminary connection between the main body of the pad and the equipment base; S3. Pass the second bolt through the second connecting hole on the first connecting plate and the first mounting hole on the annular bracket in sequence, and screw it into the first nut that is pre-set on the annular bracket. S4. Pass the third bolt through the third connecting hole on the second connecting plate and the second mounting hole on the ring bracket in sequence, and screw it into the second nut that is pre-set on the ring bracket; S5. Tighten the first bolt, the second bolt and the third bolt in sequence according to the preset torque, so as to detachably fix the pad assembly to the equipment base.

[0053] In this way, the standardized installation steps described above first achieve non-destructive installation, eliminating the need for welding or cutting throughout the process and fundamentally avoiding damage to the equipment substrate. Secondly, this process breaks down the complex installation task into clear, linear steps, significantly simplifying the operation, reducing the special skill requirements for operators, and effectively improving installation efficiency and consistency. Thirdly, the steps from "initial connection" to "final sequential tightening" ensure that the pad assembly can be positioned smoothly and accurately, and that the preload of the three bolts is evenly distributed, thus guaranteeing a stable and reliable connection. Finally, this method achieves the core function of a detachable pad assembly, greatly facilitating subsequent maintenance, adjustment, or replacement.

[0054] In the description of this application, the term "multiple" refers to two or more. Unless otherwise expressly defined, the terms "upper," "lower," 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 application 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, and therefore should not be construed as a limitation of this application. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0055] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] The above are merely preferred embodiments of this application and are 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 non-destructive mounting structure of a detachable device pad, characterized by, The device base body is provided with an annular support; The cushion block assembly is detachably fixed to the device base body through a connecting assembly; The cushion block assembly comprises: A cushion block main body provided with at least one first connecting hole; A first connecting plate and a second connecting plate are fixedly arranged on both sides of the cushion block main body along the length direction, and the first connecting plate is provided with a second connecting hole, and the second connecting plate is provided with a third connecting hole; The connecting assembly comprises: A first bolt passing through the first connecting hole and connecting the cushion block main body with the device base body; A second bolt passing through the second connecting hole and a first mounting hole on the annular support in sequence, and screwing with a first nut to press the first connecting plate against the annular support; A third bolt passing through the third connecting hole and a second mounting hole on the annular support in sequence, and screwing with a second nut to press the second connecting plate against the annular support. The first connecting plate and the second connecting plate are fixedly arranged on both sides of the cushion block main body by welding.

2. The non-destructive mounting structure of detachable equipment pads according to claim 1, wherein, The first connecting plate and the second connecting plate are rectangular steel plates.

3. The non-destructive mounting structure of detachable equipment pads according to claim 2, wherein, The first nut and the second nut are welded nuts, which are pre-welded on the annular support.

4. The non-destructive mounting structure of detachable equipment pads according to claim 1, wherein, The central axis of the first nut corresponds to the central axis of the second connecting hole, and the central axis of the second nut corresponds to the central axis of the third connecting hole.

5. The non-destructive mounting structure of detachable equipment pads according to claim 4, wherein, Anti-loosening washers are arranged between the second bolt and the first connecting plate, and between the third bolt and the second connecting plate.

6. The non-destructive mounting structure of detachable equipment pads according to claim 1, wherein, Adjusting washers for adjusting the installation height are arranged between the cushion block main body and the device base body.

7. The non-destructive mounting structure of detachable equipment pads according to claim 1, wherein, The first connecting hole, the second connecting hole and the third connecting hole have the same hole diameter.

8. The non-destructive mounting structure of detachable equipment pads according to claim 1, wherein, A non-destructive installation structure of a detachable device cushion block as claimed in any one of claims 1 to 8.

9. A hydroelectric generator gravity frame, characterized by, A method for installing a non-destructive installation structure of a detachable device cushion block as claimed in any one of claims 1 to 8, comprising the following steps:

10. A mounting method of a detachable equipment pad mounting structure, characterized by, S1, positioning the cushion block assembly to a predetermined installation position of the device base body; S2, passing the first bolt through the first connecting hole on the cushion block main body, and preliminarily connecting the cushion block main body with the device base body; S3, passing the second bolt through the second connecting hole on the first connecting plate and the first mounting hole on the annular support in sequence, and screwing with the first nut prearranged on the annular support; S4, passing the third bolt through the third connecting hole on the second connecting plate and the second mounting hole on the annular support in sequence, and screwing with the second nut prearranged on the annular support; S5, sequentially tightening the first bolt, the second bolt and the third bolt according to a predetermined torque, so as to detachably fix the cushion block assembly to the device base body. ​

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