Thermal insulation pipe bracket overall strength displacement overload testing device and method

Abstract

The invention relates to the technical field of pipe bracket testing, in particular to a thermal insulation pipe bracket overall strength displacement overload testing device and method.The thermal insulation pipe bracket overall strength displacement overload testing device comprises a bearing base and further comprises a pipe bracket base arranged on the upper side of the bearing base, a connecting pipe bracket is installed at the upper end of the pipe bracket base, a clamping plate is clamped to the upper side of the bearing base, and a rotating shaft is arranged on the clamping plate in a penetrating mode; the bottom end of the rotating shaft is clamped and connected with a connecting gear, and an annular groove is formed in the edge of the upper side of the bearing base. According to the invention, the axial and radial strength of the pipe bracket can be tested in the displacement overload test process, the use limitation is low, the automation degree is high, the test efficiency of the heat insulation pipe bracket is obviously improved, the situation that the pipe bracket is broken to injure people due to broken objects in the displacement overload test process of the pipe bracket can be avoided, and the test efficiency is improved. The displacement overload test structure has a good safety protection function, is high in use safety, and also realizes a step-by-step disassembly function of the displacement overload test structure, so that barrier-free maintenance of the test structure is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe support testing, and specifically to an overall strength displacement overload testing device and method for heat-insulating pipe supports. Background Art

[0002] A heat-insulating pipe support is a special device used to support a pipe system and reduce heat transfer, mainly for industrial pipes under high-temperature or low-temperature conditions, such as in the fields of petrochemical, electric power, metallurgy, and refrigeration. Its core function is to block the heat bridge effect while bearing the weight of the pipe body and buffering mechanical vibrations through structural design and material selection, achieving energy conservation and consumption reduction and system safety. The overall strength displacement overload testing device for heat-insulating pipe supports is a special testing equipment used to simulate the mechanical properties of a pipe system under extreme working conditions, aiming to evaluate the structural strength, displacement tolerance, and failure mode of the heat-insulating pipe support under the action of over-design loads. This device verifies whether it meets the safety margin requirements of industry standards by applying multi-directional static or dynamic overload forces and synchronously monitoring the deformation, stress distribution, and displacement of the pipe support; The patent with the publication number CN106769515A discloses an overall strength displacement overload testing device and method for heat-insulating pipe supports, which are equipped with matching saddle seats for various specifications of pipe support seats, and then assembled in a four-column hydraulic table to conduct the strength detection of the pipe support, ensuring the compressive quality of the heat-insulating pipe support. After producing the pipe support, conducting strength detection is beneficial to improving the product quality and ensuring the safety during product use. However, when the existing overall strength displacement overload testing device for heat-insulating pipe supports is in use, its structure and function are relatively single, the usage limitations are relatively large, and the degree of automation is relatively low, thus reducing the displacement overload testing efficiency of the device. Therefore, an overall strength displacement overload testing device and method for heat-insulating pipe supports are proposed. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides an overall strength displacement overload testing device and method for heat-insulating pipe supports, solving the technical problem that the existing overall strength displacement overload testing device for heat-insulating pipe supports has relatively single structure and function, relatively large usage limitations, and relatively low degree of automation when in use, thus reducing the displacement overload testing efficiency of the device as mentioned in the above background art.

[0004] To achieve the above object, the present invention provides the following technical solutions: An overall strength displacement overload testing device for heat-insulating pipe supports, including a bearing base, and further including a pipe support base arranged on the upper side of the bearing base. A connecting pipe support is installed at the upper end of the pipe support base. A clamping plate is clamped on the upper side of the bearing base. A rotating shaft is penetrated through the clamping plate. A connecting gear is fixedly connected to the bottom end of the rotating shaft. An annular groove is opened at the upper side edge of the bearing base, and an internal serrated ring is arranged inside the annular groove; A connecting groove plate is arranged on the upper side of the inner serrated ring. A fixed groove plate is fixedly connected to the top of the connecting groove plate. A first horizontal screw rod shaft penetrates through the fixed groove plate. A moving plate is sleeved on the first horizontal screw rod shaft. A second horizontal screw rod shaft penetrates through the top of the moving plate. A moving column is sleeved on the second horizontal screw rod shaft. A pressing plate is fixedly connected to the end of the moving column. A limiting ring plate is fixedly connected to the top of the moving plate. Two limiting sleeves are fixedly connected to the pressing plate. Two limiting sliding rods are fixedly connected to the moving plate. A top plate is arranged above the bearing base. A hydraulic cylinder is fixedly installed in the middle of the upper side of the top plate. An expansion rod penetrating through the top plate is fixedly connected to the output end of the hydraulic cylinder. A connecting frame plate is arranged at the bottom end of the expansion rod. Connecting groove columns are fixedly connected to both ends of the connecting frame plate. Connecting vertical plates are arranged on the lower sides of the two connecting groove columns. Two limiting blocks are fixedly connected to the connecting vertical plates.

[0005] As a further scheme of the present invention, the pipe support base is fixedly connected to the bearing base through a fixing bolt. A rotary motor is fixedly installed on the upper side of the clamping plate. A rotating shaft is fixedly connected to the output end of the rotary motor. The rotating shaft is movably connected to the clamping plate. A gear groove is formed in the bearing base. The gear groove communicates with the annular groove. A connecting gear is located inside the gear groove. The connecting gear meshes with the inner serrated ring.

[0006] As a further scheme of the present invention, a first moving motor is fixedly installed on the outer side of the connecting groove plate. The first horizontal screw rod shaft passes through the connecting groove plate and is fixedly connected to the output end of the first moving motor. A first screw hole is formed through the bottom of the moving plate. The moving plate is in threaded connection with the first horizontal screw rod shaft through the first screw hole. The bottom end of the moving plate is located inside the fixed groove plate. Side support plates are fixedly connected to both sides of the moving plate. A second moving motor is fixedly installed on the top of the moving plate. The second horizontal screw rod shaft is fixedly connected to the output end of the second moving motor. A second screw hole is formed through the moving column. The moving column is in threaded connection with the second horizontal screw rod shaft through the second screw hole. The moving column is movably connected to the limiting ring plate. The cross-sectional shape of the limiting ring plate is in the shape of a square. The limiting sliding rod is movably connected to the limiting sleeve.

[0007] As a further scheme of the present invention, a sliding connecting block is fixedly connected to the bottom end of the expansion rod. A sliding groove is formed in the connecting frame plate. The sliding connecting block is located inside the sliding groove. The shape of the connecting frame plate is in the shape of a cross. The four limiting blocks are all in contact with the connecting pipe support.

[0008] As a further solution of the present invention, the two sides of the bearing base are respectively fixedly connected with a first side frame body and a second side frame body. A lifting motor is fixedly installed at the bottom end of the first side frame body. The output end of the lifting motor is fixedly connected with a vertical screw rod shaft penetrating through the first side frame body. A first lifting column is sleeved on the vertical screw rod shaft. A limiting vertical rod is fixedly connected to the inner side of the second side frame body. A second lifting column is sleeved on the limiting vertical rod. A transparent baffle is fixedly connected between the first lifting column and the second lifting column.

[0009] As a further solution of the present invention, a lifting screw hole is penetrated through the first lifting column, and the first lifting column is threadedly connected with the vertical screw rod shaft through the lifting screw hole. The first lifting column is located inside the first side frame body. A lifting sliding hole is penetrated through the second lifting column, and the second lifting column is movably connected with the limiting vertical rod through the lifting sliding hole. The second lifting column is located inside the second side frame body. The transparent baffle is located on the periphery of the top plate.

[0010] As a further solution of the present invention, a first bolt penetrates through the connecting groove plate. A first nut is threadedly connected to the end of the first bolt. A first connecting plate is fixedly connected to the upper end of the connecting groove plate. A second connecting plate is fixedly connected to the upper end of the connecting vertical plate. A second bolt penetrates through the connecting groove column. A second nut is threadedly connected to the end of the second bolt. Four groups of mounting vertical rods are equidistantly fixedly connected to the lower side edge of the top plate. A retaining ring is fixedly sleeved at the bottom of each of the four groups of mounting vertical rods. A third nut is threadedly connected to the bottom end of each of the four groups of mounting vertical rods.

[0011] As a further solution of the present invention, a first through hole is penetrated through the first connecting plate, and the first bolt is connected to the first connecting plate through the first through hole. The first connecting plate fits with the connecting groove plate. A second through hole is penetrated through the second connecting plate, and the second bolt is connected to the second connecting plate through the second through hole. The connecting groove column fits with the second connecting plate. Four groups of bottom grooves are equidistantly opened at the bottom of the bearing base. The four groups of third nuts are respectively located inside the four groups of bottom grooves. The four groups of retaining rings are all located above the bearing base. A connecting hole is penetrated through the top of each of the four groups of bottom grooves. The four groups of mounting vertical rods are respectively located inside the four groups of connecting holes.

[0012] The overall strength displacement overload test method for the heat insulation pipe support, and the specific use steps of the test method are as follows: Step 1: First, fixedly install the pipe support base on the upper side of the bearing base through the fixing bolts, and make all four groups of limiting blocks fit with the connecting pipe support. Then, start the second moving motor on the moving plate to drive the second horizontal screw rod shaft to rotate, so as to drive the moving column to move along the limiting ring plate through the threaded connection between the second horizontal screw rod shaft and the moving column. Furthermore, through the cooperation of the two groups of limiting sliding rods and the two groups of limiting sleeves, the pressing plate continuously exerts radial pressure on the pipe support; Step 2: Start the rotary motor on the upper side of the clamping plate to drive the rotating shaft and the connecting gear to rotate together, thereby driving the connecting groove plate to rotate 90° around the pipe support through the meshing connecting gear and the internal serrated ring. Then start the first moving motor on the connecting groove plate to drive the first horizontal screw shaft to rotate, thereby driving the moving plate to move horizontally along the fixed groove plate through the threaded connection between the first horizontal screw shaft and the moving plate. Immediately start the second moving motor on the moving plate to drive the second horizontal screw shaft to rotate, thereby driving the moving column to move along the limiting ring plate through the threaded connection between the second horizontal screw shaft and the moving column. Furthermore, through the cooperation of two groups of limiting slide bars and two groups of limiting sleeves, the pressure plate continuously applies axial pressure to the pipe support; Step 3: Start the hydraulic cylinder on the upper side of the top plate to drive the telescopic rod to extend downward, thereby driving the connecting frame plate to move downward, and further driving the connecting groove column and the connecting vertical plate to move downward together until the pipe support is pressurized through the limiting block to complete the displacement overload test process.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By starting the second moving motor on the moving plate to drive the second horizontal screw shaft to rotate, thereby driving the moving column to move along the limiting ring plate through the threaded connection between the second horizontal screw shaft and the moving column. Furthermore, through the cooperation of two groups of limiting slide bars and two groups of limiting sleeves, the pressure plate continuously applies radial pressure to the pipe support. Then start the rotary motor on the upper side of the clamping plate to drive the rotating shaft and the connecting gear to rotate together, thereby driving the connecting groove plate to rotate 90° around the pipe support through the meshing connecting gear and the internal serrated ring. Immediately start the hydraulic cylinder on the upper side of the top plate to drive the telescopic rod to extend downward, thereby driving the connecting frame plate to move downward, and further driving the connecting groove column and the connecting vertical plate to move downward together until the pipe support is radially pressurized through the limiting block. Then start the first moving motor on the connecting groove plate to drive the first horizontal screw shaft to rotate, thereby driving the moving plate to move horizontally along the fixed groove plate through the threaded connection between the first horizontal screw shaft and the moving plate. When the pressure plate is in contact with the pipe support, start the second moving motor on the moving plate to drive the second horizontal screw shaft to rotate, thereby driving the moving column to move along the limiting ring plate through the threaded connection between the second horizontal screw shaft and the moving column. Furthermore, through the cooperation of two groups of limiting slide bars and two groups of limiting sleeves, the pressure plate continuously applies axial pressure to the pipe support. It can perform strength tests on the axial and radial directions of the pipe support during the displacement overload test process, with low usage limitations and high automation, significantly improving the test efficiency of the heat insulation pipe support.

[0014] 2. By starting the lifting motor at the bottom of the first side frame, the vertical lead screw shaft is driven to rotate. Thus, the first lifting column is driven to move upward along the first side frame through the threaded connection between the vertical lead screw shaft and the first lifting column. Furthermore, through the movable connection between the second lifting column and the limiting vertical rod, the second side frame drives the transparent baffle to move downward until the transparent baffle contacts the bearing base. This can avoid the situation of debris hurting people caused by the fracture of the pipe support during the pipe support displacement overload test, has a good safety protection function, and has high use safety.

[0015] 3. First, screw off the first nut from the first bolt, and then move the first bolt out from the inside of the first through hole. At this time, the first connecting plate is separated from the connecting groove plate, so that the pressure plate can be removed from the device. Then, screw off the second nut from the second bolt, and then move the second bolt out from the inside of the second through hole. At this time, the second connecting plate is separated from the connecting groove column. Immediately afterwards, screw off the third nuts at the bottom of the four groups of installation vertical rods respectively, so that the top plate can be far away from above the bearing base, and remove the four groups of limiting blocks, realizing the step-by-step disassembly function of the displacement overload test structure for unobstructed maintenance of the test structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the internal structure of the transparent baffle in the present invention; Figure 3 is a schematic diagram of the connection structure of the connecting groove plate in the present invention; Figure 4 is a schematic diagram of the connection structure of the internal serrated ring in the present invention; Figure 5 is a schematic diagram of the connection structure of the fixed groove plate in the present invention; Figure 6 is a schematic diagram of the connection structure of the connecting frame plate in the present invention; Figure 7 is a schematic diagram of the connection structure of the transparent baffle in the present invention; Figure 8 is a schematic diagram of the connection structure between the top plate and the bearing base in the present invention.

[0017] In the figure: 1, bearing base; 2, pipe support base; 3, connecting pipe support; 4, fixing bolt; 5, annular groove; 6, gear groove; 7, clamping plate; 8, rotating motor; 9, rotating shaft; 10, connecting gear; 11, internal serrated ring; 12, connecting groove plate; 13, fixing groove plate; 14, first moving motor; 15, first horizontal lead screw shaft; 16, moving plate; 17, first screw hole; 18, side support plate; 19, second moving motor; 20, second horizontal lead screw shaft; 21, moving column; 22, pressing plate; 23, second screw hole; 24, limiting ring plate; 25, limiting slide bar; 26, limiting sleeve; 27, top plate; 28, hydraulic cylinder; 29, telescopic rod; 30, sliding connecting block; 31, connecting frame plate; 32, sliding groove; 33, connecting groove column; 34, connecting vertical plate; 35, limiting block; 36, first side frame body; 37, second side frame body; 38, lifting motor; 39, vertical lead screw shaft; 40, first lifting column; 41, lifting screw hole; 42, limiting vertical rod; 43, second lifting column; 44, lifting slide hole; 45, transparent baffle; 46, first connecting plate; 47, first through hole; 48, first bolt; 49, first nut; 50, second connecting plate; 51, second through hole; 52, second bolt; 53, second nut; 54, mounting vertical rod; 55, retaining ring; 56, third nut; 57, bottom groove; 58, connecting hole. Detailed implementation manner

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the specification drawings and specific implementation manners.

[0020] Embodiment, please refer to Figures 1 to 8 , the present invention provides a device and method for testing the overall strength displacement overload of a heat insulation pipe support, and the technical solutions are as follows: Heat insulation pipe support integral strength displacement overload test device, including a bearing base 1, further includes a pipe support base 2 arranged on the upper side of the bearing base 1, a connecting pipe support 3 is installed at the upper end of the pipe support base 2, a clamping plate 7 is clamped on the upper side of the bearing base 1, a rotating shaft 9 is arranged through the clamping plate 7, a connecting gear 10 is fixedly connected to the bottom end of the rotating shaft 9, an annular groove 5 is opened at the upper side edge of the bearing base 1, an internal serrated ring 11 is arranged inside the annular groove 5, a connecting groove plate 12 is arranged on the upper side of the internal serrated ring 11, a fixed groove plate 13 is fixedly connected to the top of the connecting groove plate 12, a first horizontal screw rod shaft 15 is arranged through the fixed groove plate 13, a moving plate 16 is sleeved on the first horizontal screw rod shaft 15, a second horizontal screw rod shaft 20 is arranged through the top of the moving plate 16, a moving column 21 is sleeved on the second horizontal screw rod shaft 20, a pressing plate 22 is fixedly connected to the end of the moving column 21, a limiting ring plate 24 is fixedly connected to the top of the moving plate 16, two groups of limiting sleeves 26 are fixedly connected to the pressing plate 22, and two groups of limiting sliding rods 25 are fixedly connected to the moving plate 16. There is a top plate 27 above the bearing base 1, a hydraulic cylinder 28 is fixedly installed at the middle of the upper side of the top plate 27, a telescopic rod 29 passing through the top plate 27 is fixedly connected to the output end of the hydraulic cylinder 28, a connecting frame plate 31 is arranged at the bottom end of the telescopic rod 29, connecting groove columns 33 are fixedly connected to both ends of the connecting frame plate 31, connecting vertical plates 34 are arranged on the lower sides of the two groups of connecting groove columns 33, and two groups of limiting blocks 35 are fixedly connected to the connecting vertical plates 34.

[0021] The pipe support base 2 is fixedly connected to the bearing base 1 through a fixing bolt 4. A rotating motor 8 is fixedly installed on the upper side of the clamping plate 7, and the rotating shaft 9 is fixedly connected to the output end of the rotating motor 8. The rotating shaft 9 is movably connected to the clamping plate 7. A gear groove 6 is opened on the bearing base 1, the gear groove 6 is communicated with the annular groove 5, and the connecting gear 10 is located inside the gear groove 6. The connecting gear 10 meshes with the internal serrated ring 11.

[0022] A first moving motor 14 is fixedly installed on the outer side of the connecting groove plate 12, and the first horizontal screw rod shaft 15 passes through the connecting groove plate 12 and is fixedly connected to the output end of the first moving motor 14. A first screw hole 17 is opened through the bottom of the moving plate 16, and the moving plate 16 is threadedly connected to the first horizontal screw rod shaft 15 through the first screw hole 17. The bottom end of the moving plate 16 is located inside the fixed groove plate 13. Side support plates 18 are fixedly connected to both sides of the moving plate 16. A second moving motor 19 is fixedly installed on the top of the moving plate 16, and the second horizontal screw rod shaft 20 is fixedly connected to the output end of the second moving motor 19. A second screw hole 23 is opened through the moving column 21, and the moving column 21 is threadedly connected to the second horizontal screw rod shaft 20 through the second screw hole 23. The moving column 21 is movably connected to the limiting ring plate 24, and the cross-sectional shape of the limiting ring plate 24 is set in a square shape. The limiting sliding rods 25 are movably connected to the limiting sleeves 26.

[0023] The bottom end of the telescopic rod 29 is fixedly connected with a sliding connecting block 30. A sliding groove 32 is formed on the connecting frame plate 31, and the sliding connecting block 30 is located inside the sliding groove 32. The connecting frame plate 31 is in a cross shape, and the four groups of limiting blocks 35 are all in contact with the connecting pipe support 3.

[0024] In this embodiment, the cooperation of the sliding connecting block 30 and the sliding groove 32 can prevent the radial and axial testing processes of the pipe support from being affected.

[0025] Specifically, by starting the second moving motor 19 on the moving plate 16 to drive the second horizontal lead screw shaft 20 to rotate, the moving column 21 is driven to move along the limiting ring plate 24 through the threaded connection between the second horizontal lead screw shaft 20 and the moving column 21. Furthermore, through the cooperation of the two groups of limiting slide rods 25 and the two groups of limiting sleeves 26, the pressing plate 22 continuously applies radial pressure to the pipe support. Then, start the rotating motor 8 on the upper side of the clamping plate 7 to drive the rotating shaft 9 and the connecting gear 10 to rotate together. Thus, the connecting groove plate 12 is driven to rotate 90° around the pipe support through the meshing of the connecting gear 10 and the internal serrated ring 11. Immediately afterwards, start the hydraulic cylinder 28 on the upper side of the top plate 27 to drive the telescopic rod 29 to extend downward, thereby driving the connecting frame plate 31 to move downward, and further driving the connecting groove column 33 and the connecting vertical plate 34 to move downward together until the pipe support is radially pressurized through the limiting blocks 35. Then, start the first moving motor 14 on the connecting groove plate 12 to drive the first horizontal lead screw shaft 15 to rotate, and drive the moving plate 16 to move horizontally along the fixed groove plate 13 through the threaded connection between the first horizontal lead screw shaft 15 and the moving plate 16. When the pressing plate 22 is in contact with the pipe support, start the second moving motor 19 on the moving plate 16 to drive the second horizontal lead screw shaft 20 to rotate, and drive the moving column 21 to move along the limiting ring plate 24 through the threaded connection between the second horizontal lead screw shaft 20 and the moving column 21. Furthermore, through the cooperation of the two groups of limiting slide rods 25 and the two groups of limiting sleeves 26, the pressing plate 22 continuously applies axial pressure to the pipe support, enabling the strength test of the axial and radial directions of the pipe support during the displacement overload test, with low usage limitations and high automation, significantly improving the test efficiency of the heat insulation pipe support.

[0026] Both sides of the bearing base 1 are fixedly connected with a first side frame body 36 and a second side frame body 37 respectively. The bottom end of the first side frame body 36 is fixedly installed with a lifting motor 38. The output end of the lifting motor 38 is fixedly connected with a vertical lead screw shaft 39 passing through the first side frame body 36. A first lifting column 40 is sleeved on the vertical lead screw shaft 39. The inner side of the second side frame body 37 is fixedly connected with a limiting vertical rod 42. A second lifting column 43 is sleeved on the limiting vertical rod 42. A transparent baffle 45 is fixedly connected between the first lifting column 40 and the second lifting column 43.

[0027] A lifting screw hole 41 is formed through the first lifting column 40, and the first lifting column 40 is threadedly connected to the vertical screw rod shaft 39 through the lifting screw hole 41. The first lifting column 40 is located inside the first side frame 36. A lifting sliding hole 44 is formed through the second lifting column 43, and the second lifting column 43 is movably connected to the limiting vertical rod 42 through the lifting sliding hole 44. The second lifting column 43 is located inside the second side frame 37. The transparent baffle 45 is located around the top plate 27.

[0028] Specifically, by starting the lifting motor 38 at the bottom of the first side frame 36 to drive the vertical screw rod shaft 39 to rotate, the first lifting column 40 is driven to move upward along the first side frame 36 through the threaded connection between the vertical screw rod shaft 39 and the first lifting column 40. Furthermore, through the movable connection between the second lifting column 43 and the limiting vertical rod 42, the second side frame 37 drives the transparent baffle 45 to move downward until the transparent baffle 45 contacts the bearing base 1, which can avoid the situation of debris injuring people due to the fracture of the pipe support during the pipe support displacement overload test, has a good safety protection function, and has high use safety.

[0029] A first bolt 48 is arranged through the connecting groove plate 12. The end of the first bolt 48 is threadedly connected with a first nut 49. The upper end of the connecting groove plate 12 is fixedly connected with a first connecting plate 46. The upper end of the connecting vertical plate 34 is fixedly connected with a second connecting plate 50. A second bolt 52 is arranged through the connecting groove column 33. The end of the second bolt 52 is threadedly connected with a second nut 53. Four groups of mounting vertical rods 54 are fixedly connected at equal intervals on the lower side edge of the top plate 27. A retaining ring 55 is fixedly sleeved at the bottom of each of the four groups of mounting vertical rods 54, and a third nut 56 is threadedly connected to the bottom end of each of the four groups of mounting vertical rods 54.

[0030] A first through hole 47 is formed through the first connecting plate 46, and the first bolt 48 is connected to the first connecting plate 46 through the first through hole 47. The first connecting plate 46 fits with the connecting groove plate 12. A second through hole 51 is formed through the second connecting plate 50, and the second bolt 52 is connected to the second connecting plate 50 through the second through hole 51. The connecting groove column 33 fits with the second connecting plate 50. Four groups of bottom grooves 57 are formed at equal intervals at the bottom of the bearing base 1, and the four groups of third nuts 56 are respectively located inside the four groups of bottom grooves 57. The four groups of retaining rings 55 are all located above the bearing base 1. A connecting hole 58 is formed through the top of each of the four groups of bottom grooves 57, and the four groups of mounting vertical rods 54 are respectively located inside the four groups of connecting holes 58.

[0031] Specifically, first, the first nut 49 is unscrewed from the first bolt 48, and then the first bolt 48 is removed from the inside of the first through hole 47. At this time, the first connecting plate 46 is separated from the connecting groove plate 12, so that the pressure plate 22 can be removed from the device. Then, the second nut 53 is unscrewed from the second bolt 52, and then the second bolt 52 is removed from the inside of the second through hole 51. At this time, the second connecting plate 50 is separated from the connecting groove column 33. Immediately afterwards, the third nuts 56 at the bottom ends of the four groups of mounting vertical rods 54 are unscrewed respectively, so that the top plate 27 can be moved away from above the bearing base 1, and the four groups of limit blocks 35 are removed, realizing the step-by-step disassembly function of the displacement overload test structure for unobstructed maintenance of the test structure.

[0032] Working principle: First, the staff fixes and installs the pipe support base 2 on the upper side of the bearing base 1 through the fixing bolt 4, and makes all four groups of limiting blocks 35 fit with the connecting pipe support 3. When the testing device is in use, by starting the second moving motor 19 on the moving plate 16, the second horizontal screw rod shaft 20 is driven to rotate, so that the moving column 21 is driven to move along the limiting ring plate 24 through the threaded connection between the second horizontal screw rod shaft 20 and the moving column 21. Furthermore, through the cooperation of the two groups of limiting slide rods 25 and the two groups of limiting sleeves 26, the pressing plate 22 continuously applies radial pressure to the pipe support. Then, start the rotating motor 8 on the upper side of the clamping plate 7 to drive the rotating shaft 9 and the connecting gear 10 to rotate together, so that the connecting gear 10 and the inner serrated ring 11 engage with each other, and cooperate with the gear groove 6 and the annular groove 5 to drive the connecting groove plate 12 to rotate 90° around the pipe support. Immediately afterwards, start the hydraulic cylinder 28 on the upper side of the top plate 27 to drive the telescopic rod 29 to extend downward, so that the connecting frame plate 31 is driven to move downward under the cooperation of the sliding connecting block 30 and the sliding groove 32, and then drive the connecting groove column 33 and the connecting vertical plate 34 to move downward together until the pipe support is radially pressurized through the limiting block 35. Then, start the first moving motor 14 on the connecting groove plate 12 to drive the first horizontal screw rod shaft 15 to rotate, so that the moving plate 16 is driven to move horizontally along the fixed groove plate 13 through the threaded connection between the first horizontal screw rod shaft 15 and the moving plate 16 and the cooperation of the side support plate 18. When the pressing plate 22 fits with the pipe support, start the second moving motor 19 on the moving plate 16 to drive the second horizontal screw rod shaft 20 to rotate, so that the moving column 21 is driven to move along the limiting ring plate 24 through the threaded connection between the second horizontal screw rod shaft 20 and the moving column 21. Furthermore, through the cooperation of the two groups of limiting slide rods 25 and the two groups of limiting sleeves 26, the pressing plate 22 continuously applies axial pressure to the pipe support, which can perform strength tests on the axial and radial directions of the pipe support during the displacement overload test, with low use limitations and high automation, significantly improving the testing efficiency of the heat insulation pipe support. Secondly, during the test, by starting the lifting motor 38 at the bottom of the first side frame 36, the vertical screw rod shaft 39 is driven to rotate, so that the first lifting column 40 is driven to move upward along the first side frame 36 through the threaded connection between the vertical screw rod shaft 39 and the first lifting column 40. Furthermore, through the movable connection between the second lifting column 43 and the limiting vertical rod 42 and the cooperation of the second side frame 37, the transparent baffle 45 is driven to move downward until the transparent baffle 45 contacts the bearing base 1, which can avoid the situation of debris hurting people caused by the fracture of the pipe support during the pipe support displacement overload test, having a good safety protection function and high use safety. Finally, when a component of the device is damaged, first screw the first nut 49 off the first bolt 48, and then move the first bolt 48 out of the inner side of the first through hole 47. At this time, the first connecting plate 46 is separated from the connecting groove plate 12, so that the pressing plate 22 can be removed from the device. Then, screw the second nut 53 off the second bolt 52,Then, the second bolt 52 is removed from the inside of the second through hole 51. At this time, the second connecting plate 50 is separated from the connecting groove column 33. Immediately afterwards, the third nuts 56 at the bottoms of the four groups of mounting vertical rods 54 are respectively unscrewed, so that the top plate 27 is far away from the upper part of the bearing base 1, and the four groups of limiting blocks 35 are removed, realizing the step-by-step disassembly function of the displacement overload test structure, so as to maintain the test structure without obstacles and complete the operation.

[0033] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. Thermal insulation pipe support overall strength displacement overload test device, including a bearing base (1), characterized in that, It further includes a pipe support base (2) arranged on the upper side of the bearing base (1). A connecting pipe support (3) is installed at the upper end of the pipe support base (2). A clamping plate (7) is clamped on the upper side of the bearing base (1). A rotating shaft (9) is arranged through the clamping plate (7). A connecting gear (10) is fixedly connected to the bottom end of the rotating shaft (9). An annular groove (5) is formed at the upper side edge of the bearing base (1). An internal serrated ring (11) is arranged inside the annular groove (5); A connecting groove plate (12) is arranged on the upper side of the internal serrated ring (11). A fixed groove plate (13) is fixedly connected to the top of the connecting groove plate (12). A first horizontal screw shaft (15) is arranged through the fixed groove plate (13). A moving plate (16) is sleeved on the first horizontal screw shaft (15). A second horizontal screw shaft (20) is arranged through the top of the moving plate (16). A moving column (21) is sleeved on the second horizontal screw shaft (20). A pressing plate (22) is fixedly connected to the end of the moving column (21). A limiting ring plate (24) is fixedly connected to the top of the moving plate (16). Two groups of limiting sleeves (26) are fixedly connected to the pressing plate (22). Two groups of limiting slide bars (25) are fixedly connected to the moving plate (16); A top plate (27) is arranged above the bearing base (1). A hydraulic cylinder (28) is fixedly installed in the middle of the upper side of the top plate (27). A telescopic rod (29) passing through the top plate (27) is fixedly connected to the output end of the hydraulic cylinder (28). A connecting frame plate (31) is arranged at the bottom end of the telescopic rod (29). Connecting groove columns (33) are fixedly connected to both ends of the connecting frame plate (31). Connecting vertical plates (34) are arranged on the lower sides of the two groups of connecting groove columns (33). Two groups of limiting blocks (35) are fixedly connected to the connecting vertical plates (34).

2. The overall strength displacement overload test device for the heat insulation pipe support according to claim 1, wherein: The pipe support base (2) is fixedly connected to the bearing base (1) through a fixing bolt (4). A rotating motor (8) is fixedly installed on the upper side of the clamping plate (7). The rotating shaft (9) is fixedly connected to the output end of the rotating motor (8). The rotating shaft (9) is movably connected to the clamping plate (7). A gear groove (6) is formed in the bearing base (1). The gear groove (6) is communicated with the annular groove (5). The connecting gear (10) is located inside the gear groove (6). The connecting gear (10) meshes with the internal serrated ring (11).

3. The overall strength displacement overload test device for the heat insulation pipe support according to claim 1, characterized in that: A first moving motor (14) is fixedly installed on the outer side of the connecting groove plate (12), and a first horizontal lead screw shaft (15) passes through the connecting groove plate (12) and is fixedly connected to the output end of the first moving motor (14). A first screw hole (17) is formed through the bottom of the moving plate (16), and the moving plate (16) is in threaded connection with the first horizontal lead screw shaft (15) through the first screw hole (17). The bottom end of the moving plate (16) is located inside the fixed groove plate (13). Side support plates (18) are fixedly connected to both sides of the moving plate (16). A second moving motor (19) is fixedly installed on the top of the moving plate (16), and a second horizontal lead screw shaft (20) is fixedly connected to the output end of the second moving motor (19). A second screw hole (23) is formed through the moving column (21), and the moving column (21) is in threaded connection with the second horizontal lead screw shaft (20) through the second screw hole (23). The moving column (21) is movably connected to the limit ring plate (24), and the cross-sectional shape of the limit ring plate (24) is in a square shape. The limit slide bar (25) is movably connected to the limit sleeve (26).

4. The overall strength displacement overload test device for the heat insulation pipe support according to claim 1, wherein: A sliding connecting block (30) is fixedly connected to the bottom end of the telescopic rod (29). A sliding groove (32) is formed in the connecting frame plate (31), and the sliding connecting block (30) is located inside the sliding groove (32). The shape of the connecting frame plate (31) is in a cross shape. All four groups of limit blocks (35) are in contact with the connecting pipe support (3).

5. The overall strength displacement overload test device for the heat insulation pipe support according to claim 1, characterized in that: A first side frame body (36) and a second side frame body (37) are respectively fixedly connected to both sides of the bearing base (1). A lifting motor (38) is fixedly installed at the bottom end of the first side frame body (36). The output end of the lifting motor (38) is fixedly connected to a vertical lead screw shaft (39) passing through the first side frame body (36). A first lifting column (40) is sleeved on the vertical lead screw shaft (39). A limit vertical rod (42) is fixedly connected to the inside of the second side frame body (37). A second lifting column (43) is sleeved on the limit vertical rod (42). A transparent baffle (45) is fixedly connected between the first lifting column (40) and the second lifting column (43).

6. The overall strength displacement overload test device for the heat insulation pipe support according to claim 5, characterized in that: A lifting screw hole (41) is formed through the first lifting column (40), and the first lifting column (40) is in threaded connection with the vertical lead screw shaft (39) through the lifting screw hole (41). The first lifting column (40) is located inside the first side frame body (36). A lifting sliding hole (44) is formed through the second lifting column (43), and the second lifting column (43) is movably connected to the limit vertical rod (42) through the lifting sliding hole (44). The second lifting column (43) is located inside the second side frame body (37). The transparent baffle (45) is located outside the top plate (27).

7. The overall strength and displacement overload test device for the heat insulation pipe support according to claim 1, wherein: A first bolt (48) is penetratingly arranged on the connecting groove plate (12), and a first nut (49) is threadedly connected to the end of the first bolt (48). The upper end of the connecting groove plate (12) is fixedly connected to a first connecting plate (46). The upper end of the connecting vertical plate (34) is fixedly connected to a second connecting plate (50). A second bolt (52) is penetratingly arranged on the connecting groove column (33), and a second nut (53) is threadedly connected to the end of the second bolt (52). Four groups of mounting vertical rods (54) are fixedly connected to the lower side edge of the top disc (27) at equal intervals. A retaining ring (55) is fixedly sleeved at the bottom of each of the four groups of mounting vertical rods (54), and a third nut (56) is threadedly connected to the bottom end of each of the four groups of mounting vertical rods (54).

8. The overall strength and displacement overload test device for the heat insulation pipe support according to claim 7, characterized in that: A first through hole (47) is penetratingly formed in the first connecting plate (46), and the first bolt (48) is connected to the first connecting plate (46) through the first through hole (47). The first connecting plate (46) fits with the connecting groove plate (12). A second through hole (51) is penetratingly formed in the second connecting plate (50), and the second bolt (52) is connected to the second connecting plate (50) through the second through hole (51). The connecting groove column (33) fits with the second connecting plate (50). Four groups of bottom grooves (57) are formed in the bottom of the bearing base (1) at equal intervals, and the four groups of third nuts (56) are respectively located inside the four groups of bottom grooves (57). The four groups of retaining rings (55) are all located above the bearing base (1). Connecting holes (58) are penetratingly formed in the top of the four groups of bottom grooves (57), and the four groups of mounting vertical rods (54) are respectively located inside the four groups of connecting holes (58).

9. The overall strength displacement overload test method for the heat insulation pipe support is applied to the overall strength displacement overload test device for the heat insulation pipe support as described in any one of claims 1-8, and is characterized in that: The specific use steps of this test method are as follows: Step 1: First, the pipe support base (2) is fixedly installed on the upper side of the bearing base (1) through the fixing bolt (4), and the four groups of limiting blocks (35) are all in contact with the connecting pipe support (3). Then, the second moving motor (19) on the moving plate (16) is started to drive the second horizontal screw shaft (20) to rotate. Thus, the moving column (21) is driven to move along the limiting ring plate (24) through the threaded connection between the second horizontal screw shaft (20) and the moving column (21). Furthermore, through the cooperation of the two groups of limiting slide rods (25) and the two groups of limiting sleeves (26), the pressing plate (22) continuously applies radial pressure to the pipe support; Step 2: Start the rotary motor (8) on the upper side of the clamping plate (7) to drive the rotating shaft (9) and the connecting gear (10) to rotate together, so as to drive the connecting groove plate (12) to rotate 90° around the pipe support through the meshing connecting gear (10) and the internal serrated ring (11). Then start the first moving motor (14) on the connecting groove plate (12) to drive the first horizontal lead screw shaft (15) to rotate, so as to drive the moving plate (16) to move horizontally along the fixed groove plate (13) through the threaded connection between the first horizontal lead screw shaft (15) and the moving plate (16). Immediately start the second moving motor (19) on the moving plate (16) to drive the second horizontal lead screw shaft (20) to rotate, so as to drive the moving column (21) to move along the limit ring plate (24) through the threaded connection between the second horizontal lead screw shaft (20) and the moving column (21). Furthermore, through the cooperation of the two groups of limit slide rods (25) and the two groups of limit sleeves (26), the pressure plate (22) continuously applies axial pressure to the pipe support; Step 3: Start the hydraulic cylinder (28) on the upper side of the top plate (27) to drive the telescopic rod (29) to extend downward, so as to drive the connecting frame plate (31) to move downward, and further drive the connecting groove column (33) and the connecting vertical plate (34) to move downward together until the pipe support is pressurized by the limit block (35) to complete the displacement overload test process.

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