Load test platform for jacking system

Abstract

The invention discloses a load test platform for a jacking system. The load test platform comprises a platform base assembly, a loading part assembly, a rope winding system, a power source, a speed reducer, a winding drum and the like. According to a vertical rated load and a given side load, an inclination angle required by test simulation is calculated, and the angle of a dowel bar is adjusted by adjusting a load applying direction adjusting plate in the loading part assembly, so that the required working condition is realized, and the vertical load in the loading process of the device is read by a pressure sensor arranged in the loading part assembly. Through the test platform, the structure of each jacking device in the jacking system and the use requirements of the system can be verified, so that the purpose of inspection is achieved with relatively low investment cost.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery testing technology, and in particular to a load testing platform for a lifting system. Background Technology

[0002] Lifting systems offer significant advantages in the overall construction of heavy-duty, ultra-large objects. Compared to traditional cranes that typically lift objects individually, lifting systems, which use multiple machines clustered together, are more economical. However, due to the large size, weight, and high value of heavy-duty, ultra-large objects, and the fact that lifting systems are generally used in clusters, thorough testing is essential before their official deployment to mitigate risks. This testing must verify that the lifting system's structure and functionality meet the requirements. However, directly testing and debugging the objects being lifted is not economically viable, as they are usually heavy-duty and ultra-large. Publicly available patents primarily concern the lifting system itself; patents related to load testing platforms for lifting systems are not yet reported. Summary of the Invention

[0003] The purpose of this invention is to provide a load testing platform for a lifting system, which can verify the structure and usage requirements of each lifting system without using multiple lifting systems in a cluster to lift heavy objects. This achieves the testing objective with a relatively small investment cost.

[0004] The lifting system load test platform of the present invention includes a platform base device and a loading unit device. The platform base device includes a base, and a first guide post is set vertically at each of the four corners of the base. The loading unit device includes a loading unit bracket located above the base. Both the base and the loading unit bracket are set horizontally. The four first guide posts pass through openings on the loading unit bracket one-to-one, and the loading unit bracket can slide up and down along the first guide posts. The base and the loading unit bracket are connected by a first rope tilt angle adjustment mechanism and a second rope tilt angle adjustment mechanism symmetrically arranged on the left and right. A first rope segment and a second rope segment are respectively connected to the first rope tilt angle adjustment mechanism and the second rope tilt angle adjustment mechanism. The first rope segment can change the angle between the first rope segment and the vertical direction under the action of the first rope tilt angle adjustment mechanism, and the second rope segment can change the angle between the second rope and the vertical direction under the action of the second rope tilt angle adjustment mechanism. The loading unit device includes a load application direction adjustment plate connected to the bottom wall of the loading unit bracket via a second guide rail slider structure. The rear wall of the load application direction adjustment plate is fixedly connected to the front side of a second adjustment screw arranged in a horizontal direction. The rear side of the second adjustment screw passes through an opening on a second angle lug mounted on the bottom wall of the loading unit bracket and a second adjustment handwheel. The second adjustment screw is threadedly connected to the second adjustment handwheel and can slide back and forth with the opening on the second angle lug. A second locking nut is connected to the second adjustment screw. A loading seat is provided below the load application direction adjustment plate. Multiple force transmission rods are connected between the load application direction adjustment plate and the loading seat, and the force transmission rods are evenly distributed along the same circumferential direction. The upper and lower ends of each force transmission rod are rotatably connected to the upper force transmission shaft and the lower force transmission shaft, respectively. The upper force transmission shaft is rotatably connected to a third angle lug fixed on the bottom wall of the load application direction adjustment plate, and the lower force transmission shaft is rotatably connected to a fourth angle lug fixed on the top wall of the loading seat. The third and fourth angle lugs are arranged in a one-to-one correspondence. A scale observation line is provided on one of the fourth angle lugs, and a first elongated hole is opened at the upper end of a scale observation scale, and an observation hole is opened on the scale observation scale, which corresponds to the fourth angle lug with the scale observation line. The force transmission shaft on the third corner ear should be inserted into the first elongated hole of the scale observation ruler and can slide up and down along the first elongated hole. The lower end of the scale observation ruler is rotatably connected to the lower force transmission shaft on the fourth corner ear with scale observation lines. Different angles are marked on different scale observation lines. The tilt angle of the force transmission rod can be observed through the observation hole. When the force transmission rod is vertical, the observed angle is zero degrees. A limit hole is opened on the loading part bracket located outside the load application direction adjustment plate. The top wall of the loading seat is fixedly connected to the bottom of a second guide post arranged in a vertical direction, and the top of the second guide post is inserted into the limit hole. The guide post can move up and down along the limiting hole; a loading head is installed on the bottom wall of the loading seat, the loading head includes a pressure sensor, the pressure sensor is fixedly installed on the tray, and a limiting ring is provided outside the pressure sensor, the top of which is fixed to the bottom wall of the loading seat. The limiting ring and the tray are fixedly connected by an adjusting screw passing through an opening on the side wall of the limiting ring and an opening on the side wall of the tray. The opening on the limiting ring is a second elongated hole, and the adjusting screw can move up and down along the second elongated hole. When the adjusting screw is at the bottom of the second elongated hole, there is a clearance fit between the top of the pressure sensor and the bottom wall of the loading seat.

[0005] The present invention has the following beneficial effects: 1. Vertical load and lateral load can be applied simultaneously during the load test of a single lifting system; 2. The designed slide assembly and loading unit can ensure that the second guide column on the base should not bear excessive lateral load when the lifting system is subjected to lateral load. The second guide column on the base mainly serves a guiding function. 3. The rope winding system can be used to conduct load tests on jacking systems at different jacking heights; 4. It can apply different lateral loads and continuously adjust the load application angle. Attached Figure Description

[0006] Figure 1-1 This is a structural schematic diagram of the load test platform for the lifting system of the present invention at a first angle; Figure 1-2 This is a structural schematic diagram of the load test platform for the lifting system of the present invention from a second angle; Figure 2 Figure 1 shows a schematic diagram of the base portion of the platform. Figure 3 for Figure 2 An enlarged structural diagram of point D1 in the base section shown; Figure 4 This is a schematic diagram of the loading device in the platform shown in Figure 1; Figure 5 for Figure 4 An enlarged structural diagram of point D2 in the base section shown; Figure 6 for Figure 4 A schematic diagram of the structure of the loading unit support in the loading device is shown. Figure 7 for Figure 4 The diagram shows the structure of the ballast head in the loading device. Figure 8 for Figure 7 The diagram shows the structure of the sensor tray in the ballast head. Figure 9 for Figure 4 The diagram shows the structural schematic of the loading seat portion in the loading device. Figure 10 This is a schematic diagram illustrating the application of the structure of the present invention. Detailed Implementation

[0007] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0008] As shown in the attached figures, the lifting system load test platform of the present invention includes a platform base device 1 and a loading device 2. The platform base device 1 includes a base 11, and a first guide post 115 is vertically arranged at each of the four corners of the base. The loading device 2 includes a loading bracket 21 located above the base. Both the base and the loading bracket are arranged horizontally. The four first guide posts pass through the openings 21a on the loading bracket, and the loading bracket can slide up and down along the first guide posts.

[0009] The base and the loading bracket are connected by a first rope tilt adjustment mechanism and a second rope tilt adjustment mechanism symmetrically arranged on the left and right. A first rope segment and a second rope segment are respectively connected to the first rope tilt adjustment mechanism and the second rope tilt adjustment mechanism. The first rope segment can change the angle between the first rope segment and the vertical direction under the action of the first rope tilt adjustment mechanism, and the second rope segment can change the angle between the second rope and the vertical direction under the action of the second rope tilt adjustment mechanism, thereby achieving the application of a combined vertical and horizontal load to the lifting system.

[0010] In one embodiment of the present invention, the first rope tilt angle adjustment mechanism and the second rope tilt angle adjustment mechanism each include a sliding block mechanism installed on the left and right sides of the top wall of the foundation base, and a first lifting lug and a second lifting lug installed on the left and right sides of the bottom wall of the loading part bracket. An upper pulley 22 is rotatably connected to the first lifting lug and the second lifting lug, respectively. The sliding block mechanism includes a first slider that forms a first guide rail slider structure 121 with a first guide rail installed on the foundation base. A pulley bracket is provided on the top wall of the first slider. The rear side of the pulley bracket is fixedly connected to the front side of a first adjusting screw 16 arranged in a horizontal direction. The rear side of the first adjusting screw passes through the opening on the first corner lug installed on the foundation base and the first adjusting handwheel 15. The first adjusting screw is threadedly connected to the first adjusting handwheel and can slide back and forth with the opening on the first corner lug. A first locking nut is connected to the first adjusting screw, and a pin hole 131 is opened on the pulley bracket. On the pulley bracket of the slide mechanism 12 located on the right, a first lower pulley and a second lower pulley are rotatably connected at intervals. On the pulley bracket of the slide mechanism 13 on the left, near the first adjusting screw, a third lower pulley is rotatably connected, and a pin for fixing the rope end is installed in the pin hole. The first rope segment and the second rope segment are a single-piece rope segment. One end of the single-piece rope segment is connected to the power tensioning mechanism through a first steering mechanism mounted on the base, and the other end passes sequentially through the first lower pulley, the first lifting lug, the second lower pulley, the second steering mechanism mounted on the base, the third lower pulley, the second lifting lug, and is fixedly connected to the pin. The power tensioning mechanism can release or wind and tighten the single-piece rope segment.

[0011] As some optional embodiments, the power tensioning mechanism includes a power source 4, a reduction gear 5, and a drum frame fixed on the top left wall of the front end of the base. The shaft of a drum 6 is rotatably connected to the drum frame. The output shaft of the power source is connected to the shaft of the drum through the reduction gear. The top right wall of the front end of the base, the top right wall of the rear end of the base, and the top left wall of the rear end of the base are respectively fixedly connected to the bottom of a pulley shaft arranged in a vertical direction, and a guide pulley is rotatably connected to each pulley shaft. These are referred to as the first guide pulley as the first steering mechanism, the second guide pulley 14 as the second steering mechanism, and the third guide pulley as the third steering mechanism. The side rope end of a pulling rope is fixed to the drum and wound around the drum. After passing through the first guide pulley, it is connected to the rope segment of the integrated structure. The rope segment of the integrated structure passes through the second pulley and then passes through the second guide pulley 14 and the third guide pulley in sequence. The pulling rope and the rope segment of the integrated structure are an integrated structure.

[0012] The left and right sliding mechanisms can move back and forth via the first guide rail slider structure. Taking the right sliding mechanism 12 as an example, its specific implementation is as follows: the first adjusting handwheel 15 is pre-placed at the first corner lug 261, and then the first slider in the right sliding mechanism 12 is installed from the side without the first corner lug onto the first guide rail on the base to form the first guide rail slider structure. Then, the right sliding mechanism is pushed towards the first corner lug, so that the first adjusting screw 16 of the right sliding mechanism 12 is inserted into the hole of the first corner lug and the first adjusting handwheel 15. Through the thread engagement of the threaded hole on the first adjusting screw and the first adjusting handwheel 15, the first adjusting handwheel 15 is rotated, and the right sliding mechanism 12 can move back and forth along the first guide rail. After moving to the required position, the first locking nut is screwed onto the first adjusting screw and tightened, thus fixing the first sliding mechanism in the current required position.

[0013] The loading unit device 2 further includes a load application direction adjustment plate 26 connected to the bottom wall of the loading unit bracket 21 via a second guide rail slider structure. Specifically, the second guide rail slider structure includes second guide rails fixedly on the bottom wall of the loading unit bracket 21 at left and right intervals. Second sliders are respectively provided on the left and right side walls of the load application direction adjustment plate 26, and the second sliders are slidably connected to the second guide rails to form the second guide rail slider structure. The rear wall of the load application direction adjustment plate 26 is fixedly connected to the front side of a second adjusting screw 26a arranged in the horizontal direction. The rear side of the second adjusting screw passes through an opening on a second angle ear installed on the bottom wall of the loading unit bracket 21 and a second adjusting handwheel 27. The second adjusting screw is threadedly connected to the second adjusting handwheel and can slide back and forth with the opening on the second angle ear. A second locking nut is connected to the second adjusting screw.

[0014] A loading seat 251 is provided below the load application direction adjustment plate 26. Multiple force transmission rods are connected between the load application direction adjustment plate and the loading seat. The force transmission rods are evenly distributed along the same circumferential direction, preferably three. Each force transmission rod has its upper and lower ends rotatably connected to the upper and lower force transmission shafts, respectively. The upper force transmission shaft is rotatably connected to the third angle ear 212 fixed on the bottom wall of the load application direction adjustment plate, and the lower force transmission shaft is rotatably connected to the fourth angle ear 2511 fixed on the top wall of the loading seat. The third and fourth angle ears are arranged in a one-to-one correspondence. A scale observation line 2514a is provided on one of the fourth angle ears (such as the one on the right). A first elongated hole is opened at the upper end of a scale observation scale 23, and an observation hole 23a is opened on the scale observation scale. The upper force transmission shaft on the third angle ear, which is arranged corresponding to the fourth angle ear with the scale observation line, is inserted into the first elongated hole of the scale observation scale and can slide up and down along the first elongated hole. The lower end of the scale observation scale is rotatably connected to the lower force transmission shaft on the fourth angle ear with the scale observation line. Different angles are marked on different scale observation lines. The tilt angle of the force transmission rod can be observed through the observation hole. When the force transmission rod is vertical, the observed angle is zero degrees. A limiting hole 21b is opened on the loading part bracket 21 located outside the load application direction adjustment plate. The top wall of the loading seat 251 is fixedly connected to the bottom of a second guide post 2512 arranged in a vertical direction, and the top of the second guide post 2512 is inserted into the limiting hole. The second guide post can move up and down along the limiting hole.

[0015] The second guide rail slider structure, in conjunction with the load application direction adjustment plate 26, the second adjustment handwheel 27, and the second locking nut, enables the second slider of the load application direction adjustment plate 26 to reciprocate within the second guide rail 211. The second guide post 2512 on the loading seat 251 is inserted into the limiting hole 21b, thereby ensuring that the loading seat 251 can only move along the second guide post 2512, that is, only in a direction perpendicular to the plane of the load application direction adjustment loading part bracket 21.

[0016] A loading head 25 is installed on the bottom wall of the loading seat. The loading head includes a pressure sensor 253, which is fixedly mounted on a tray 254. The fixing structure can be achieved by opening a mounting hole 2542 in the tray and connecting the pressure sensor to the tray through a locking screw passing through the mounting hole 2542. A limiting ring 2513 is provided outside the pressure sensor, with its top fixed to the bottom wall of the loading seat. The limiting ring and the tray are fixedly connected by an adjusting screw 252 passing through an opening in the side wall of the limiting ring and an opening 2541 in the side wall of the tray. The opening in the limiting ring is a second elongated oval hole, and the adjusting screw can move up and down along the second elongated oval hole. When the adjusting screw is at the bottom of the second elongated oval hole, there is a clearance fit between the top of the pressure sensor 253 and the bottom wall of the loading seat 251. This ensures that there is a cavity between the top of the pressure sensor 253 and the bottom wall of the loading seat 251 when no load is applied, thus ensuring that the pressure sensor 253 only bears the load when loaded. Preferably, a cavity is provided between the bottom wall of the tray and the limiting ring to accommodate the uppermost part of the lifting system.

[0017] When the loading seat 251 is connected to the load application direction adjustment plate 26 via the force transmission rod 24, the second guide post 2512 is inserted into the limiting hole 21b of the loading part bracket 21. In this way, when the load application direction adjustment plate 26 is adjusted by the second adjustment handwheel 27, the loading head 25 moves only along the straight line of the second guide post 2512 and does not move with the load application direction adjustment plate 26. This allows the force transmission rod 24 to tilt at a certain angle, changing the direction of the force. At this time, the loading head 25 remains parallel to the loading bracket 21. After the loading head 25, the force transmission rod 24, and the load application direction adjustment plate 26 are installed, a scale observation scale 24 is installed at a position parallel to the force transmission rod connected to the fourth corner lug with the angle scale line 2514a to observe the tilt angle of the force transmission rod 24.

[0018] The load test of the jacking system requires testing the stability of the jacking system under a certain lateral load when lifting the rated vertical load. The working principle of the jacking system load test platform is to calculate the tilt angle required for the test simulation based on the vertical rated load and the given lateral load. The tilt angle of the force transmission rod is adjusted by adjusting the load application direction adjustment plate of the loading part device to achieve the working condition required by the jacking system.

[0019] The specific implementation steps are as follows: 1. Place the lifting system between the four first guide columns 115 on the platform; 2. The uppermost end of the lifting system is inserted into the limiting ring 2513 of the loading device 2 and contacts the sensor tray 254. Adjust the load application direction adjustment plate 26 and observe the tilt angle of the force transmission rod through the scale 24. After the requirement is met, tighten the second locking nut. In this way, the load applied to the lifting system through the loading device 2 has a certain tilt angle. After the loading device 2 is adjusted, the lifting system lifts the loading device 2 upward, and at the same time, the drum 6 releases the rope 3 until it is lifted to the specified height. Then, move in the opposite direction to the load application direction adjustment plate 26 and adjust the right sliding seat mechanism. The mechanism 12 and the left sliding block mechanism 13 are moved a certain distance so that the rope inclination angle between the sliding block mechanism and the loading device is consistent with the inclination angle of the force transmission rod. The rope inclination angle can be observed using existing instruments during the adjustment process, such as a mooring cable exit angle measuring device. A theodolite can also be used for simple measurement. After all the adjustments are completed, the power source 4 drives the drum 6 to wind the rope 3, and the rope will pull the loading device 2 downward, applying the load to the jacking system, thereby verifying whether the jacking system can stably lift the rated vertical load under certain lateral load conditions (such as being affected by strong external winds).

[0020] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0021] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. Jacking system load test platform, characterized in that: The system includes a platform base device (1) and a loading device (2). The platform base device includes a base (11), and a first guide post (115) is set at each of the four corners of the base along the vertical direction. The loading device includes a loading bracket (21) located above the base. Both the base and the loading bracket are set along the horizontal direction. The four first guide posts pass through the openings (21a) on the loading bracket one by one. The loading bracket can slide up and down along the first guide posts. The base and the loading bracket are connected by a first rope tilt angle adjustment mechanism and a second rope tilt angle adjustment mechanism that are symmetrically arranged on the left and right. A first rope segment and a second rope segment are respectively connected to the first rope tilt angle adjustment mechanism and the second rope tilt angle adjustment mechanism. The first rope segment can change the angle between the first rope segment and the vertical direction under the action of the first rope tilt angle adjustment mechanism. The second rope segment can change the angle between the second rope and the vertical direction under the action of the second rope tilt angle adjustment mechanism. The loading device (2) includes a load application direction adjustment plate (26) connected to the bottom wall of the loading bracket via a second guide rail slider structure. The rear wall of the load application direction adjustment plate is fixedly connected to the front side of a second adjustment screw (26a) arranged in the horizontal direction. The rear side of the second adjustment screw passes through the opening on the second corner lug installed on the bottom wall of the loading bracket and the second adjustment handwheel (27). The second adjustment screw is threadedly connected to the second adjustment handwheel and can slide back and forth with the opening on the second corner lug. A second locking nut is connected to the second adjustment screw. A loading seat (251) is provided below the load application direction adjustment plate. Multiple force transmission rods are connected between the load application direction adjustment plate and the loading seat. The force transmission rods are evenly distributed along the same circumferential direction. The upper and lower ends of each force transmission rod are rotatably connected to the upper force transmission shaft and the lower force transmission shaft, respectively. The upper force transmission shaft is rotatably connected to the third corner lug (212) fixed on the bottom wall of the load application direction adjustment plate. The lower force transmission shaft is rotatably connected to the fourth corner lug (2511) fixed on the top wall of the loading seat. The third corner lug and the fourth corner lug are arranged in a one-to-one correspondence. A scale observation line (2514a) is provided on a fourth corner ear. A first elongated hole is opened at the upper end of a scale observation ruler (23), and an observation hole (23a) is opened on the scale observation ruler. The transmission shaft on the third corner ear, which is corresponding to the fourth corner ear with the scale observation line, is inserted into the first elongated hole of the scale observation ruler and can slide up and down along the first elongated hole. The lower end of the scale observation ruler is rotatably connected to the lower transmission shaft on the fourth corner ear with the scale observation line. Different angles are marked on different scale observation lines. The tilt angle of the force transmission rod can be observed through the observation hole. When the force transmission rod is vertical, the observed angle is zero degrees. A limit hole (21b) is opened on the loading part bracket located outside the load application direction adjustment plate. The top wall of the loading seat (251) is fixedly connected to the bottom of a second guide post (2512) arranged in a vertical direction, and the top of the second guide post is inserted into the limit hole. The second guide post can move up and down along the limit hole. A loading head (25) is installed on the bottom wall of the loading seat. The loading head includes a pressure sensor (253). The pressure sensor is fixedly mounted on the tray (254). A limiting ring (2513) is provided outside the pressure sensor and fixed to the bottom wall of the loading seat. The limiting ring and the tray are fixedly connected by an adjusting screw (252) passing through an opening on the side wall of the limiting ring and an opening (2541) on the side wall of the tray. The opening on the limiting ring is a second elongated hole. The adjusting screw can move up and down along the second elongated hole. When the adjusting screw is at the bottom of the second elongated hole, there is a clearance fit between the top of the pressure sensor and the bottom wall of the loading seat.

2. The jacking system load test platform according to claim 1, characterized in that: The first and second rope tilt angle adjustment mechanisms each include a sliding block mechanism installed on the left and right sides of the top wall of the foundation base, and a first and a second lifting lug installed on the left and right sides of the bottom wall of the loading part support. Upper pulleys (22) are rotatably connected to the first and second lifting lugs respectively. The sliding block mechanism includes a first slider that forms a first guide rail slider structure (121) with a first guide rail installed on the foundation base. A pulley bracket is provided on the top wall of the first slider. The rear side of the pulley bracket is fixedly connected to the front side of a first adjusting screw (16) arranged horizontally. The rear side of the first adjusting screw passes through an opening on a first corner lug installed on the foundation base and a first adjusting handwheel (15). The first adjusting screw is threadedly connected to the first adjusting handwheel and can slide back and forth with the opening on the first corner lug. A first locking nut is connected to the first adjusting screw, and a pin hole (131) is opened on the pulley bracket. A first lower pulley and a second lower pulley are rotatably connected to the pulley bracket of the slide mechanism (12) on the right side at intervals. A third lower pulley is rotatably connected to the pulley bracket of the slide mechanism (13) on the left side and close to the first adjusting screw, and a pin for fixing the rope end is installed in the pin hole. The first rope segment and the second rope segment are rope segments with an integral structure. One end of the rope segment with an integral structure is connected to the power tensioning mechanism through a first steering mechanism installed on the base base, and the other end passes through the first lower pulley, the first lug, the second lower pulley, the second steering mechanism installed on the base base, the third lower pulley, the second lug, and is fixedly connected to the pin. The power tensioning mechanism can release or wind and tighten the rope segment with an integral structure.

3. The jacking system load test platform according to claim 2, characterized in that: The power tensioning mechanism includes a power source (4), a speed reduction device (5), and a drum frame fixed on the top wall of the left side of the front end of the base. The shaft of a drum (6) is rotatably connected to the drum frame. The output shaft of the power source is connected to the shaft of the drum through the speed reduction device. The top wall of the front end of the base, the top wall of the rear end of the base, and the top wall of the rear end of the base are respectively fixedly connected to the bottom of a pulley shaft set in a vertical direction. A guide pulley is rotatably connected to each pulley shaft. They are referred to as the first guide pulley as the first steering mechanism, the second guide pulley (14) as the second steering mechanism, and the third guide pulley as the third guide pulley. The side rope end of a pulling rope is fixed to the drum and wound around the drum. After passing through the first guide pulley, it is connected to the rope segment of the integrated structure. The rope segment of the integrated structure passes through the second pulley and then passes through the second guide pulley and the third guide pulley. The pulling rope and the rope segment of the integrated structure are an integrated structure.

4. The jacking system load test platform according to claim 3, characterized in that: The aforementioned multiple force transmission rods are three in number.

5. The jacking system load test platform according to claim 3, characterized in that: The pressure sensor is fixedly mounted on the tray in the following manner: a mounting hole is made on the tray, and a locking screw passing through the mounting hole is used to connect the pressure sensor to the tray, thereby fixing the pressure sensor to the tray.

6. The jacking system load test platform according to claim 3, characterized in that: A cavity is provided between the bottom wall of the tray and the limiting ring to accommodate the uppermost part of the lifting system.

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