Vertical shaft type rotary lifting platform

Abstract

The invention relates to the technical field of protective engineering, in particular to a vertical shaft type rotary lifting platform which comprises a lifting device, a rotating device and a vertical shaft assembly, and the vertical shaft assembly comprises a vertical shaft barrel, a first flange, a first sealing ring and a first bottom plate; the lifting device comprises a supporting circular ring, a supporting assembly and a plurality of first oil cylinder assemblies. The multiple first oil cylinder assemblies drive the supporting circular ring and the supporting assembly to ascend and descend in the vertical shaft barrel. When the multiple first oil cylinder assemblies drive the supporting circular ring to descend to the upper portion of the first sealing ring, the supporting circular ring and the first sealing ring form sealing. The rotating device comprises a disc, a rotation supporting driver and a second oil cylinder assembly, and the disc is arranged in an inner hole of the supporting circular ring. Structural change formed by lifting is adopted, and various complex environments such as ocean and land can be simulated; meanwhile, the orientations of targets such as trucks, buildings and animals can be adjusted through rotation, so that target damage effect simulation tests in various orientations such as positive orientations and lateral orientations can be carried out.

Description

Technical Field

[0001] The invention relates to the technical field of protective engineering, in particular to a protective engineering test technology, and specifically to a shaft type rotating lifting platform. Background Art

[0002] The performance evaluation of protective engineering requires tests to obtain evaluation data. The test section of existing test equipment has a single function and a small size, and can only simulate target tests in limited scenarios. In reality, targets such as trucks, buildings, and animals may be in a variety of complex environments such as the ocean and land. Changing the scene often requires replacing the test section. Therefore, it is urgent to break this single-function structural design and provide a multifunctional test section for the test equipment that is suitable for different targets and different environments. Summary of the invention

[0003] In response to the problems raised by the background technology, the purpose of the present invention is to provide a vertical shaft type rotating lifting platform, which can construct a variety of different simulation environments through lifting, can be applied to the test section of protective test equipment, and expand the adaptability of the test section of the protective equipment.

[0004] To achieve the above object, the present invention adopts the following technical solutions: A shaft type rotary lifting platform, comprising a lifting device, a rotating device and a shaft assembly, wherein the shaft assembly comprises a shaft body, a first flange, a first sealing ring and a first bottom plate; the shaft body is a cylindrical structure as a whole, the first flange is arranged at the upper end of the shaft body 31, the first bottom plate closes the lower end of the shaft body, a manhole is arranged on the lower side wall of the shaft body, and the first sealing ring is arranged inside the shaft body and above the manhole; The lifting device comprises a supporting ring, a supporting assembly and a plurality of first oil cylinder assemblies. The supporting ring is arranged in the shaft body and can move up and down in the shaft body. The upper end opening of the supporting ring is provided with 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 oil cylinder assembly. The lower end of the first oil cylinder assembly is connected to the first bottom plate. The plurality of first oil cylinder assemblies drive the supporting ring and the supporting assembly to rise and fall in the shaft body. When the plurality of first oil 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. The rotating device includes a disc, a slewing support driver and a second cylinder assembly. The disc is arranged in the inner hole of the supporting ring, and the upper end of the side wall of the disc is provided with an annular boss, and the annular boss is connected to the annular groove by a dynamic seal; the upper end of the slewing support driver is connected to the lower end surface of the disc, and the lower end is connected to the second cylinder assembly, and the lower end of the second cylinder assembly is connected to the supporting assembly, the second cylinder assembly drives the slewing support driver to rise and fall, and the slewing support driver drives the disc to rotate.

[0005] 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 supporting ring through a second flange, and the lower end is closed by the second base plate. The second cylinder assembly is arranged in the second cylinder, and the lower end is connected to the upper surface of the second base plate.

[0006] The second cylinder is an inverted cone-shaped shell structure as a whole, and the outer diameter of its lower end surface is smaller than the inner diameter of the first sealing ring; the circumferential side wall of the second cylinder is provided with a plurality of reinforcing ribs and a plurality of maintenance holes.

[0007] The second oil cylinder assembly includes a second cylinder barrel, a base, a guide column, a guide sleeve, a piston and a guide sleeve. The base is connected to the second bottom plate, the lower end of the second cylinder barrel is fixedly connected to the base, the guide sleeve is arranged on the upper end of the second cylinder barrel, the guide column is arranged on the base, and the guide sleeve is arranged on the guide column; the piston as a whole is a stepped shaft structure with a thin top and a thick bottom, the lower end of which is installed in the second cylinder barrel, and the upper end passes through the guide sleeve to connect the rotary support driver; a guide hole is provided on the lower end surface of the piston, and the guide hole is adapted to the guide sleeve.

[0008] The rotating device also includes a connecting plate and a support. The upper end of the slewing support driver is connected to the lower end surface of the disc through the connecting plate, and the lower end of the second cylinder assembly is connected to the support assembly through the support.

[0009] The supporting circular ring comprises a first ring body, a second ring body and a guide ring. The inner diameter of the first ring body is larger than that of the second ring body. The first ring body is coaxial with the second ring body and the first ring body is welded on top of the second ring body. The inner diameter surface of the first ring body and the end surface of the hole of the second ring body form the annular groove. The guide ring is fixedly sleeved on the outer side of the circumference of the first ring body and the second ring body, and 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 gap-matched with the vertical shaft body, and a second sealing ring is fixedly connected to the lower end of the guide ring. When the supporting circular ring descends to the upper part of the first sealing ring, the second sealing ring forms a seal with the first sealing ring.

[0010] The first oil cylinder assembly is a two-stage oil 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 bottom plate through a base, the lower end of the first-stage piston rod is embedded in the first cylinder barrel and slides with the cylinder barrel, the lower end of the second-stage piston rod is embedded in the first-stage piston rod and slides with the first-stage piston rod, the upper end of the second-stage piston rod is connected with 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 cooperates with the spherical protrusion at the end of the second-stage piston rod, and the upper end of the second-stage piston rod is hingedly connected to the support assembly through the ball head front hinge.

[0011] The beneficial effects of the present invention are as follows: the present invention adopts structural changes formed by lifting to simulate various complex environments such as ocean and land; at the same time, the orientation of targets such as trucks, buildings, and animals can be adjusted by rotation, so as to conduct simulation tests on target damage effects in various orientations such as front and side orientations. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the overall structure diagram of the present invention.

[0013] Figure 2 A schematic cross-sectional view of the support ring.

[0014] Figure 3 It is a three-dimensional schematic diagram of the first cylinder assembly.

[0015] Figure 4 This is the front view of the rotating device.

[0016] Figure 5 for Figure 4 A-A section view.

[0017] In the figure: 2-rotating device, 4-supporting ring, 5-supporting assembly, 6-first cylinder assembly, 7-disc, 8-connecting disk, 9-slewing support driver, 10-second cylinder assembly; 31-shaft body, 32-first flange, 33-first sealing ring, 34-manhole, 35-first bottom plate; 41-first ring body, 42-second ring body, 43-guide ring, 44-second sealing ring, 45-annular groove; 51-second flange, 52-second barrel, 53-second bottom plate; 61-first cylinder, 62-first piston rod, 63-secondary piston rod, 64-ball head front hinge; 71-annular boss. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described clearly and completely below in conjunction with the drawings of this specification. It should be noted that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] like Figure 1-Figure 5As shown, the present invention provides a shaft type rotary lifting platform, including a lifting device, a rotating device 2 and a shaft assembly, wherein the shaft assembly includes a shaft body 31, a first flange 32, a first sealing ring 33 and a first bottom plate 35; the shaft body 31 is a cylindrical structure as a whole, the first flange 32 is arranged at the upper end of the shaft body 31, the first flange 32 is connected to the test section of the test equipment, the first bottom plate 35 closes the lower end of the shaft body 31, the lower side wall of the shaft body 31 is provided with a manhole 34, and the first sealing ring 33 is arranged inside the shaft body 31 and above the manhole 34; The lifting device comprises a support ring 4, a support assembly 5 and a plurality of first oil cylinder assemblies 6. The support ring 4 is arranged in the shaft body 31 and can move up and down in the shaft body 31. An annular groove 45 is arranged at the upper opening of the support ring 4. The upper end of the support assembly 5 is connected to the support ring 4, and the lower end is connected to the first oil cylinder assembly 6. The lower end of the first oil cylinder assembly 6 is connected to the first bottom plate 35. The plurality of first oil cylinder assemblies 6 drive the support ring 4 and the support assembly 5 to rise and fall in the shaft body 31. When the plurality of first oil cylinder assemblies 6 drive the support ring 4 to descend to the upper part of the first sealing ring 33, the support ring 4 forms a seal with the first sealing ring 33. The rotating device 2 includes a disc 7, a slewing support driver 9 and a second cylinder assembly 10. The disc 7 is arranged 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, and the annular boss 71 is connected to the annular groove 45 by a dynamic seal; the upper end of the slewing support driver 9 is connected to the lower end surface of the disc 7, and the lower end is connected to the second cylinder assembly 10, and the lower end of the second cylinder assembly 10 is connected to the supporting assembly 5. The second cylinder assembly 10 drives the slewing support driver 9 to rise and fall, and the slewing support driver 9 drives the disc 7 to rotate.

[0020] The present invention has two application structures, one of which is a structure without fluid medium filling. At this time, the lifting device drives the rotating device 2 to stop the rotating device 2 at the middle position or the top position in the shaft body 31. The annular boss 71 of the disc 7 and the annular groove 45 of the support ring 4 are not sealed 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 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, and various protection tests are performed. At this time, the gap between the support ring 4 and the shaft body 31 can be filled with sealing filler according to the test requirements for sealing, or it can be not sealed. The second is a structure filled with fluid medium. At this time, after the slewing support driver 9 drives the disc 7 to rotate to the required test angle, 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, and 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 shaft body 31 into two 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.

[0021] The lifting device of the present invention is equipped with a hydraulic pump station to drive the first cylinder assembly 6 to perform lifting. When the lifting device simulates the marine environment, the support ring 4 is lowered 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, and water can be poured into the shaft to simulate the marine environment.

[0022] The rotating device drives the second cylinder assembly 10 through the hydraulic pump station. After the disc 7 rises, the slewing support driver 9 drives the disc 7 to rotate, which can reduce the friction during rotation. The slewing support driver 9 is a prior art, which can be an electrically or hydraulically driven turntable that can rotate 360° infinitely to adjust the target orientation. When the windward side flows, the damage effects of the target in the front and side positions can be simulated. In the present invention, the lower part of the slewing support driver 9 is a fixed part, and the upper part is a rotating part.

[0023] The support assembly 5 includes a second cylinder 52 and a second bottom plate 53. The upper end of the second cylinder 52 is connected to the bottom surface of the support ring 4 through the second flange 51, and the lower end is closed by the second bottom plate 53. The second cylinder assembly 10 is arranged in the second cylinder 52, and the lower end is connected to the upper surface of the second bottom plate 53. In the present 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 falls to the lower part of the first sealing ring 33.

[0024] The second cylinder 52 is an inverted cone-shaped shell structure as a whole, and the outer diameter of the lower end surface thereof is smaller than the inner diameter of the first sealing ring 33; the circumferential side wall of the second cylinder 52 is provided with a plurality of reinforcing ribs and a plurality of maintenance holes.

[0025] The second oil cylinder assembly 10 comprises 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 bottom plate 53. The lower end of the second cylinder 107 is fixedly connected to the base 101. The guide sleeve 105 is arranged at the upper end of the second cylinder 107. The guide post 102 is arranged 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 thin top and a thick bottom. The lower end of the piston 104 is installed in the second cylinder 107, and the upper end passes through the guide sleeve 105 to connect the rotary support driver 9. The lower end surface of the piston 104 is provided with a guide hole, which is adapted to the guide sleeve 103. Specifically, according to the function of the second oil cylinder assembly 10, its stroke should not be too large.

[0026] The rotating device 2 further comprises a connecting plate 8 and a support 11 . The upper end of the slewing support driver 9 is connected to the lower end surface of the disc 7 via the connecting plate 8 , and the lower end of the second cylinder assembly 10 is connected to the supporting assembly 5 via the support 11 .

[0027] The support 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 surface of the hole of the second ring body 42 form the annular groove 45; the guide ring 43 is fixedly sleeved on the outer side of the circumference of the first ring body 41 and the second ring body 42, and 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 gap-fitted 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 forms a seal with the first sealing ring 33.

[0028] The first oil cylinder assembly 6 is a two-stage oil 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 bottom plate 35 through 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 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 with 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 hingedly connected to the support assembly 5 through the ball head front hinge 64.

[0029] The parts not described in detail in this invention are prior art.

Claims

1. A shaft type rotary lifting platform, comprising a lifting device, a rotating device (2) and a shaft assembly, characterized in that: The shaft assembly comprises a shaft body (31), a first flange (32), a first sealing ring (33) and a first bottom plate (35); the shaft body (31) is a cylindrical structure as a whole, the first flange (32) is arranged at the upper end portion of the shaft body (31), the first bottom plate (35) closes the lower end portion of the shaft body (31), a manhole (34) is arranged on the lower side wall of the shaft body (31), and the first sealing ring (33) is arranged inside the shaft body (31) and above the manhole (34); The lifting device comprises a supporting ring (4), a supporting assembly (5) and a plurality of first oil cylinder assemblies (6); the supporting ring (4) is arranged in a shaft body (31) and can move up and down in the shaft body (31); an annular groove (45) is provided at an opening at the upper end of the supporting ring (4); the upper end of the supporting assembly (5) is connected to the supporting ring (4), and the lower end is connected to the first oil cylinder assembly (6); the lower end of the first oil cylinder assembly (6) is connected to the first bottom plate (35); the plurality of first oil cylinder assemblies (6) drive the supporting ring (4) and the supporting assembly (5) to move up and down in the shaft body (31); when the plurality of first oil cylinder assemblies (6) drive the supporting ring (4) to descend to the upper part of the first sealing ring (33), the supporting ring (4) and the first sealing ring (33) form a seal; The rotating device (2) comprises a disc (7), a slewing support driver (9) and a second cylinder assembly (10); the disc (7) is arranged in the inner hole of the supporting ring (4); the upper end of the side wall of the disc (7) has an annular boss (71); the annular boss (71) is connected to the annular groove (45) by a dynamic seal; the upper end of the slewing support driver (9) is connected to the lower end surface of the disc (7); the lower end is connected to the second cylinder assembly (10); the lower end of the second cylinder assembly (10) is connected to the supporting assembly (5); the second cylinder assembly (10) drives the slewing support driver (9) to rise and fall, and the slewing support driver (9) drives the disc (7) to rotate.

2. The shaft-type rotary lifting platform according to claim 1 is characterized in that: The support assembly (5) comprises a second cylinder (52) and a second bottom 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 bottom plate (53); the second cylinder assembly (10) is arranged in the second cylinder (52), and the lower end is connected to the upper surface of the second bottom plate (53).

3. The shaft-type rotary lifting platform according to claim 2 is characterized in that: The second cylinder (52) is an overall inverted cone-shaped shell structure, and the outer diameter of its lower end surface is smaller than the inner diameter of the first sealing ring (33); the circumferential side wall of the second cylinder (52) is provided with a plurality of reinforcing ribs and a plurality of maintenance holes.

4. The vertical shaft type rotary lifting platform according to claim 2 is characterized in that: The second oil cylinder assembly (10) comprises a second cylinder barrel (107), a base (101), a guide column (102), a guide sleeve (103), a piston (104) and a guide sleeve (105); the base (101) is connected to the second bottom plate (53); the lower end of the second cylinder barrel (107) is fixedly connected to the base (101); the guide sleeve (105) is arranged at the upper end of the second cylinder barrel (107); the guide column (102) is arranged on the base (101); the guide sleeve (103) is sleeved on the guide column (102); the piston (104) is a stepped shaft structure with a thin upper part and a thick lower part; the lower end of the piston (104) is installed in the second cylinder barrel (107); the upper end passes through the guide sleeve (105) and is connected to the slewing support driver (9); the lower end surface of the piston (104) is provided with a guide hole, and the guide hole is adapted to the guide sleeve (103).

5. The shaft-type rotary lifting platform according to claim 1 is characterized in that: The rotating device (2) further comprises a connecting disk (8) and a support (11); the upper end of the slewing support driver (9) is connected to the lower end surface of the disc (7) via the connecting disk (8); and the lower end of the second cylinder assembly (10) is connected to the support assembly (5) via the support (11).

6. The vertical shaft type rotary lifting platform according to claim 1 is characterized in that: The supporting ring (4) comprises 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 greater 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 to the top of the second ring body (42); the inner diameter surface of the first ring body (41) and the orifice end surface of the second ring body (42) form the annular groove (45); the guide ring (43) is fixedly sleeved on the first ring body (41) and the second ring body (42) is fixedly sleeved on the first ring body (41). A ring body (41) is arranged outside the circumference of a second ring body (42), and 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-matched with the shaft body (31), and the lower end of the guide ring (43) is fixedly connected with a second sealing ring (44), and when the supporting ring (4) descends to the upper part of the first sealing ring (33), the second sealing ring (44) forms a seal with the first sealing ring (33).

7. The vertical shaft type rotary lifting platform according to claim 1 is characterized in that: The first oil cylinder assembly (6) is a two-stage oil cylinder, comprising a first cylinder barrel (61), a first piston rod (62) and a second piston rod (63). The first cylinder barrel (61) is fixed to the first bottom plate (35) via a base (65). The lower end of the first piston rod (62) is embedded in the first cylinder barrel (61) and is slidably matched with the first cylinder barrel (61). The lower end of the second piston rod (63) is embedded in the first piston rod (62) and is slidably matched with the first piston rod (62). The upper end of the second piston rod (63) is connected to a ball head front hinge (64). The upper end of the second 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) is matched with the spherical protrusion at the end of the second piston rod (63). The upper end of the second piston rod (63) is hingedly connected to the support assembly (5) via the ball head front hinge (64).

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