A vertical shaft rotating lifting platform

Abstract

This invention relates to the field of protective engineering technology, specifically a vertical shaft-type rotary lifting platform, comprising a lifting device, a rotating device, and a vertical shaft assembly. The vertical shaft assembly includes a vertical shaft body, a first flange, a first sealing ring, and a first base plate. The lifting device includes a supporting ring, a supporting assembly, and multiple first hydraulic cylinder assemblies. The multiple first hydraulic cylinder assemblies drive the supporting ring and the supporting assembly to move up and down within the vertical shaft body. When the multiple first hydraulic cylinder assemblies drive the supporting ring to descend above the first sealing ring, the supporting ring and the first sealing ring form a seal. The rotating device includes a disc, a rotary support driver, and a second hydraulic cylinder assembly. The disc is disposed within the inner hole of the supporting ring. This invention utilizes the structural changes created by lifting to simulate various complex environments such as oceans and land. Simultaneously, the rotation allows for adjustment of the orientation of targets such as trucks, buildings, and animals, thereby enabling simulation tests of target damage effects from various orientations, including frontal and lateral views.

Description

Technical Field

[0001] This invention relates to the field of protective engineering technology, and more particularly to protective engineering testing technology, specifically a vertical shaft-type rotary lifting platform. Background Technology

[0002] Performance evaluation of protective engineering requires testing to obtain evaluation data. Existing testing equipment has a single function and small size, which can only simulate target tests in limited scenarios. However, in reality, targets such as trucks, buildings, and animals may be in various complex environments such as oceans and land. Changing the scenario often requires replacing the testing section. Therefore, there is an urgent need to break away from this single-function structural design and provide a multi-functional testing section for testing equipment that is suitable for different targets and different environments. Summary of the Invention

[0003] In response to the problems raised in the background art, the purpose of this invention is to provide a vertical shaft-type rotary lifting platform, which can construct various different simulated environments through lifting, and can be applied to the test section of protective testing equipment, thus expanding the adaptability of the test section of protective equipment.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A vertical shaft rotating lifting platform includes a lifting device, a rotating device, and a vertical shaft assembly. The vertical shaft assembly includes a vertical shaft body, a first flange, a first sealing ring, and a first base plate. The vertical shaft body is generally cylindrical. The first flange is located at the upper port of the vertical shaft body. The first base plate closes the lower port of the vertical shaft body. A manhole is provided on the lower side wall of the vertical shaft body. The first sealing ring is located inside the vertical shaft body and above the manhole.

[0006] The lifting device includes a supporting ring, a supporting assembly, and multiple first hydraulic cylinder assemblies. The supporting ring is disposed inside the shaft and can move up and down inside the shaft. The upper end of the supporting ring has an annular groove. The upper end of the supporting assembly is connected to the supporting ring, and the lower end is connected to the first hydraulic cylinder assembly. The lower end of the first hydraulic cylinder assembly is connected to a first base plate. The multiple first hydraulic cylinder assemblies drive the supporting ring and the supporting assembly to move up and down inside the shaft. When the multiple first hydraulic cylinder assemblies drive the supporting ring to descend to the upper part of the first sealing ring, the supporting ring and the first sealing ring form a seal.

[0007] The rotating device includes a disc, a rotary support driver, and a second hydraulic cylinder assembly. The disc is disposed in the inner hole of the support ring, and the upper end of the disc sidewall has an annular boss. The annular boss and the annular groove are connected by a dynamic seal. The upper end of the rotary support driver is connected to the lower end face of the disc, and the lower end is connected to the second hydraulic cylinder assembly. The lower end of the second hydraulic cylinder assembly is connected to the support assembly. The second hydraulic cylinder assembly drives the rotary support driver to rise and fall, and the rotary support driver drives the disc to rotate.

[0008] The support assembly includes a second cylinder and a second base plate. The upper end of the second cylinder is connected to the bottom surface of the support ring through a second flange, and the lower end is closed by the second base plate. The second hydraulic cylinder assembly is disposed inside the second cylinder, and its lower end is connected to the upper surface of the second base plate.

[0009] The second cylinder is an integral inverted frustum-shaped shell structure, with its lower end outer diameter being smaller than the inner diameter of the first sealing ring; the circumferential sidewall of the second cylinder is provided with multiple reinforcing ribs and multiple maintenance holes.

[0010] The second cylinder assembly includes a second cylinder barrel, a base, a guide post, a guide sleeve, a piston, and a guide sleeve. The base is connected to the second base plate, and the lower end of the second cylinder barrel is fixedly connected to the base. The guide sleeve is located at the upper end of the second cylinder barrel, the guide post is located on the base, and the guide sleeve is fitted on the guide post. The piston has a stepped shaft structure that is thinner at the top and thicker at the bottom. Its lower end is installed inside the second cylinder barrel, and its upper end passes through the guide sleeve and connects to the rotary support driver. The lower end face of the piston is provided with a guide hole that is adapted to the guide sleeve.

[0011] The rotating device also includes a connecting plate and a support. The upper end of the rotary support driver is connected to the lower end face of the disc through the connecting plate, and the lower end of the second hydraulic cylinder assembly is connected to the support assembly through the support.

[0012] The supporting ring includes a first ring body, a second ring body, and a guide ring. The inner diameter of the first ring body is larger than the inner diameter of the second ring body. The first ring body and the second ring body are coaxial, and the first ring body is welded to the top of the second ring body. The inner diameter surface of the first ring body and the end face of the orifice of the second ring body form the annular groove. The guide ring is fixedly sleeved on the outer circumference of the first ring body and the second ring body. The upper end of the guide ring is flush with the first ring body, and the lower end extends downward to below the bottom surface of the second ring body. The guide ring is clearance-fitted with the shaft body. A second sealing ring is fixedly connected to the lower end of the guide ring. When the supporting ring descends to the top of the first sealing ring, the second sealing ring and the first sealing ring form a seal.

[0013] The first cylinder assembly is a two-stage cylinder, which includes a first cylinder barrel, a first-stage piston rod, and a second-stage piston rod. The first cylinder barrel is fixed to the first base plate via a base. The lower end of the first-stage piston rod is embedded in the first cylinder barrel and slides with it. The lower end of the second-stage piston rod is embedded in the first-stage piston rod and slides with it. The upper end of the second-stage piston rod is connected to a ball-head front hinge. The upper end of the second-stage piston rod is a spherical protrusion. The ball-head front hinge includes a spherical groove. The spherical groove of the ball-head front hinge engages with the spherical protrusion at the end of the second-stage piston rod. The upper end of the second-stage piston rod is hinged to the support assembly via the ball-head front hinge.

[0014] The beneficial effects of this invention are as follows: This invention uses a structural change formed by lifting and lowering to simulate various complex environments such as ocean and land; at the same time, it uses rotation to adjust the orientation of targets such as trucks, buildings, and animals, thereby conducting target damage effect simulation tests from various orientations such as front and side views. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of the present invention.

[0016] Figure 2 A cross-sectional view of the supporting ring.

[0017] Figure 3 This is a three-dimensional schematic diagram of the first hydraulic cylinder assembly.

[0018] Figure 4 This is the front view of the rotating device.

[0019] Figure 5 for Figure 4 Sectional view A-A.

[0020] In the diagram: 2-Rotating device, 4-Supporting ring, 5-Supporting assembly, 6-First cylinder assembly, 7-Disc, 8-Connecting disc, 9-Rotary support driver, 10-Second cylinder assembly; 31-Shaft body, 32-First flange, 33-First sealing ring, 34-Manhole, 35-First base plate; 41-First ring body, 42-Second ring body, 43-Guide ring, 44-Second sealing ring, 45-Annular groove; 51-Second flange, 52-Second cylinder body, 53-Second base plate; 61-First cylinder barrel, 62-First stage piston rod, 63-Second stage piston rod, 64-Ball head front hinge; 71-Annular boss. Detailed Implementation

[0021] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1-5As shown, the present invention provides a vertical shaft rotating lifting platform, including a lifting device, a rotating device 2, and a vertical shaft assembly. The vertical shaft assembly includes a vertical shaft body 31, a first flange 32, a first sealing ring 33, and a first base plate 35. The vertical shaft body 31 is generally cylindrical. The first flange 32 is provided at the upper port of the vertical shaft body 31 and is connected to the test section of the test equipment. The first base plate 35 closes the lower port of the vertical shaft body 31. A manhole 34 is provided on the lower side wall of the vertical shaft body 31. The first sealing ring 33 is provided inside the vertical shaft body 31 and above the manhole 34.

[0023] The lifting device includes a support ring 4, a support assembly 5, and multiple first hydraulic cylinder assemblies 6. The support ring 4 is disposed inside the vertical shaft body 31 and can move up and down within the vertical shaft body 31. The upper end of the support ring 4 has an annular groove 45. The upper end of the support assembly 5 is connected to the support ring 4, and the lower end is connected to the first hydraulic cylinder assembly 6. The lower end of the first hydraulic cylinder assembly 6 is connected to the first base plate 35. The multiple first hydraulic cylinder assemblies 6 drive the support ring 4 and the support assembly 5 to move up and down within the vertical shaft body 31. When the multiple first hydraulic cylinder assemblies 6 drive the support ring 4 to descend to the upper part of the first sealing ring 33, the support ring 4 and the first sealing ring 33 form a seal.

[0024] The rotating device 2 includes a disc 7, a rotary support driver 9, and a second hydraulic cylinder assembly 10. The disc 7 is disposed in the inner hole of the supporting ring 4, and the upper end of the side wall of the disc 7 has an annular boss 71, which is dynamically sealed to the annular groove 45. The upper end of the rotary support driver 9 is connected to the lower end face of the disc 7, and the lower end is connected to the second hydraulic cylinder assembly 10. The lower end of the second hydraulic cylinder assembly 10 is connected to the support assembly 5. The second hydraulic cylinder assembly 10 drives the rotary support driver 9 to rise and fall, and the rotary support driver 9 drives the disc 7 to rotate.

[0025] This invention has two application structures. One is a fluidless medium filling structure. In this case, the lifting device drives the rotating device 2 to stop at the middle or top position inside the shaft body 31. The annular boss 71 of the disc 7 and the annular groove 45 of the supporting ring 4 are not sealed at first. The target is installed on the disc 7. After the rotary support driver 9 drives the disc 7 to rotate to the required test angle, the second hydraulic cylinder assembly 10 drives the disc 7 to descend, so that the annular boss 71 and the annular groove 45 of the supporting ring 4 form a seal for various protection tests. At this time, the gap between the supporting ring 4 and the shaft body 31 can be sealed with sealing filler according to the test requirements, or it can be left unsealed. The second type is a fluid medium filling structure. In this case, the rotary support driver 9 drives the disc 7 to rotate to the required test angle, and the second cylinder assembly 10 drives the disc 7 to descend, so that the annular boss 71 and the annular groove 45 of the support ring 4 form a seal. The lifting device drives the rotating device 2 to descend to the upper part of the first sealing ring 33, so that the support ring 4 and the first sealing ring 33 form a seal. The double sealing structure divides the interior of the vertical shaft cylinder 31 into upper and lower spaces. The target is placed in the upper space, and the upper space is filled with fluid media such as water or soil to simulate the medium environment for protection testing.

[0026] The lifting device described in this invention is equipped with a hydraulic pump station, which drives the first cylinder assembly 6 to perform lifting. When simulating a marine environment, the lifting device lowers the support ring 4 to the upper part of the first sealing ring 33, so that the support ring 4 and the first sealing ring 33 form a seal, and the annular boss 71 and the annular groove 45 of the support ring 4 form a seal, allowing water to be injected into the shaft to simulate a marine environment.

[0027] The rotating device drives the second cylinder assembly 10 via a hydraulic pump station. After the disc 7 rises, the rotary support driver 9 drives the disc 7 to rotate, which reduces friction during rotation. The rotary support driver 9 is existing technology; it can be an electrically or hydraulically driven rotary table capable of 360° stepless rotation to adjust the target's orientation. When the wind is blowing in, it can simulate the target's frontal and lateral damage effects. In this invention, the lower part of the rotary support driver 9 is a fixed part, and the upper part is a rotating part.

[0028] The support assembly 5 includes a second cylinder 52 and a second base plate 53. The upper end of the second cylinder 52 is connected to the bottom surface of the support ring 4 via a second flange 51, and the lower end is closed by the second base plate 53. The second hydraulic cylinder assembly 10 is disposed inside the second cylinder 52, and its lower end is connected to the upper surface of the second base plate 53. In this invention, when the lifting device drives the rotating device 2 to descend to the upper part of the first sealing ring 33, the lower end of the second cylinder 52 passes through the inner hole of the first sealing ring 33 and descends to the lower part of the first sealing ring 33.

[0029] The second cylinder 52 is an integral inverted frustum-shaped shell structure, and its lower end face outer diameter is smaller than the inner diameter of the first sealing ring 33; the circumferential sidewall of the second cylinder 52 is provided with multiple reinforcing ribs and multiple maintenance holes.

[0030] The second hydraulic cylinder assembly 10 includes a second cylinder 107, a base 101, a guide post 102, a guide sleeve 103, a piston 104, and a guide sleeve 105. The base 101 is connected to the second base plate 53. The lower end of the second cylinder 107 is fixedly connected to the base 101. The guide sleeve 105 is located at the upper end of the second cylinder 107. The guide post 102 is located on the base 101, and the guide sleeve 103 is sleeved on the guide post 102. The piston 104 has a stepped shaft structure that is thinner at the top and thicker at the bottom. Its lower end is installed inside the second cylinder 107, and its upper end passes through the guide sleeve 105 and connects to the rotary support driver 9. The lower end face of the piston 104 has a guide hole that is adapted to the guide sleeve 103. Specifically, based on the function of the second hydraulic cylinder assembly 10, its stroke should not be too large.

[0031] The rotating device 2 also includes a connecting plate 8 and a support 11. The upper end of the rotary support driver 9 is connected to the lower end face of the disc 7 through the connecting plate 8, and the lower end of the second hydraulic cylinder assembly 10 is connected to the support assembly 5 through the support 11.

[0032] The supporting ring 4 includes a first ring body 41, a second ring body 42, and a guide ring 43. The inner diameter of the first ring body 41 is larger than the inner diameter of the second ring body 42. The first ring body 41 and the second ring body 42 are coaxial, and the first ring body 41 is welded above the second ring body 42. The inner diameter surface of the first ring body 41 and the end face of the orifice of the second ring body 42 form the annular groove 45. The guide ring 43 is fixedly sleeved on the outer circumference of the first ring body 41 and the second ring body 42. The upper end of the guide ring 43 is flush with the first ring body 41, and the lower end extends downward to below the bottom surface of the second ring body 42. The guide ring 43 is clearance-fitted with the shaft body 31. The lower end of the guide ring 43 is fixedly connected to a second sealing ring 44. When the supporting ring 4 descends to the upper part of the first sealing ring 33, the second sealing ring 44 and the first sealing ring 33 form a seal.

[0033] The first cylinder assembly 6 is a two-stage cylinder, which includes a first cylinder barrel 61, a first-stage piston rod 62, and a second-stage piston rod 63. The first cylinder barrel 61 is fixed to the first base plate 35 via a base 65. The lower end of the first-stage piston rod 62 is embedded in the first cylinder barrel 61 and slides in cooperation with it. The lower end of the second-stage piston rod 63 is embedded in the first-stage piston rod 62 and slides in cooperation with it. The upper end of the second-stage piston rod 63 is connected to a ball-head front hinge 64. The upper end of the second-stage piston rod 63 is a spherical protrusion. The ball-head front hinge 64 includes a spherical groove. The spherical groove of the ball-head front hinge 64 cooperates with the spherical protrusion at the end of the second-stage piston rod 63. The upper end of the second-stage piston rod 63 is hinged to the support assembly 5 via the ball-head front hinge 64.

[0034] The parts of this invention not described in detail are prior art.

Claims

1. A vertical shaft rotary lifting platform, comprising a lifting device, a rotating device (2), and a vertical shaft assembly, characterized in that: The shaft assembly includes a shaft body (31), a first flange (32), a first sealing ring (33), and a first base plate (35); the shaft body (31) is a cylindrical structure, the first flange (32) is located at the upper port of the shaft body (31), the first base plate (35) closes the lower port of the shaft body (31), a manhole (34) is provided on the lower side wall of the shaft body (31), and the first sealing ring (33) is located inside the shaft body (31) and above the manhole (34); The lifting device includes a support ring (4), a support assembly (5), and multiple first cylinder assemblies (6). The support ring (4) is located inside the shaft body (31) and can move up and down inside the shaft body (31). The upper end of the support ring (4) is provided with an annular groove (45). The upper end of the support assembly (5) is connected to the support ring (4), and the lower end is connected to the first cylinder assembly (6). The lower end of the first cylinder assembly (6) is connected to the first base plate (35). Multiple first cylinder assemblies (6) drive the support ring (4) and the support assembly (5) to move up and down inside the shaft body (31). When the multiple first cylinder assemblies (6) drive the support ring (4) to descend to the upper part of the first sealing ring (33), the support ring (4) and the first sealing ring (33) form a seal. The rotating device (2) includes a disc (7), a rotary support driver (9), and a second hydraulic cylinder assembly (10). The disc (7) is disposed in the inner hole of the support ring (4), and the upper end of the side wall of the disc (7) has an annular boss (71). The annular boss (71) and the annular groove (45) are connected by a dynamic seal. The upper end of the rotary support driver (9) is connected to the lower end face of the disc (7), and the lower end is connected to the second hydraulic cylinder assembly (10). The lower end of the second hydraulic cylinder assembly (10) is connected to the support assembly (5). The second hydraulic cylinder assembly (10) drives the rotary support driver (9) to rise and fall, and the rotary support driver (9) drives the disc (7) to rotate.

2. The vertical shaft rotary lifting platform according to claim 1, characterized in that: The support assembly (5) includes a second cylinder (52) and a second base plate (53). The upper end of the second cylinder (52) is connected to the bottom surface of the support ring (4) through a second flange (51), and the lower end is closed by the second base plate (53). The second cylinder assembly (10) is disposed inside the second cylinder (52), and its lower end is connected to the upper surface of the second base plate (53).

3. The vertical shaft rotary lifting platform according to claim 2, characterized in that: The second cylinder (52) is an inverted frustum-shaped shell structure, and the outer diameter of its lower end face is smaller than the inner diameter of the first sealing ring (33); the circumferential sidewall of the second cylinder (52) is provided with multiple reinforcing ribs and multiple maintenance holes.

4. A vertical shaft rotary lifting platform according to claim 2, characterized in that: The second cylinder assembly (10) includes a second cylinder (107), a base (101), a guide post (102), a guide sleeve (103), a piston (104), and a guide sleeve (105). The base (101) is connected to the second base plate (53). The lower end of the second cylinder (107) is fixedly connected to the base (101). The guide sleeve (105) is located at the upper end of the second cylinder (107). The guide post (102) is located on the base (101), and the guide sleeve (103) is sleeved on the guide post (102). The piston (104) is a stepped shaft structure with a thinner upper end and a thicker lower end. Its lower end is installed inside the second cylinder (107), and its upper end passes through the guide sleeve (105) and is connected to the rotary support driver (9). The lower end face of the piston (104) is provided with a guide hole, which is adapted to the guide sleeve (103).

5. A vertical shaft rotary lifting platform according to claim 1, characterized in that: The rotating device (2) further includes a connecting plate (8) and a support (11). The upper end of the rotary support driver (9) is connected to the lower end face of the disc (7) through the connecting plate (8), and the lower end of the second cylinder assembly (10) is connected to the support assembly (5) through the support (11).

6. A vertical shaft rotary lifting platform according to claim 1, characterized in that: The supporting ring (4) includes a first ring body (41), a second ring body (42), and a guide ring (43). The inner diameter of the first ring body (41) is larger than the inner diameter of the second ring body (42). The first ring body (41) and the second ring body (42) are coaxial, and the first ring body (41) is welded above the second ring body (42). The inner diameter surface of the first ring body (41) and the end face of the orifice of the second ring body (42) form the annular groove (45). The guide ring (43) is fixedly sleeved on the first ring body (41). The outer circumference of the first ring (41) and the second ring (42) is provided, and the upper end of the guide ring (43) is flush with the first ring (41), and the lower end extends downward to below the bottom surface of the second ring (42); the guide ring (43) is in clearance fit with the shaft body (31), and the lower end of the guide ring (43) is fixedly connected to the second sealing ring (44). When the support ring (4) descends to the upper part of the first sealing ring (33), the second sealing ring (44) and the first sealing ring (33) form a seal.

7. A vertical shaft rotary lifting platform according to claim 1, characterized in that: The first cylinder assembly (6) is a two-stage cylinder. The two-stage cylinder includes a first cylinder barrel (61), a first-stage piston rod (62), and a second-stage piston rod (63). The first cylinder barrel (61) is fixed to the first base plate (35) by a base (65). The lower end of the first-stage piston rod (62) is embedded in the first cylinder barrel (61) and slides with the first cylinder barrel (61). The lower end of the second-stage piston rod (63) is embedded in the first-stage piston rod (62) and slides with the first-stage piston rod (62). The upper end of the second-stage piston rod (63) is connected to a ball-head front hinge (64). The upper end of the second-stage piston rod (63) is a spherical protrusion. The ball-head front hinge (64) includes a spherical groove. The spherical groove of the ball-head front hinge (64) cooperates with the spherical protrusion at the end of the second-stage piston rod (63). The upper end of the second-stage piston rod (63) is hinged to the support assembly (5) through the ball-head front hinge (64).

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