Ultra-low temperature steel bar detection device

Abstract

The present invention discloses an ultra-low temperature steel bar detection device. The detection device includes a bottom plate, a bottom frame fixed on the bottom plate, two groups of pre-tensioning components slidably mounted on the bottom frame, a mobile component located above the bottom plate, and two groups of detection components installed on the mobile component; the mobile component includes a top frame, two top plates, and a top plate driving mechanism; the detection component includes a detection box; the pre-tensioning component includes a moving plate and a tensioning mechanism located above the moving plate; the two groups of detection boxes are in the same straight line as the two groups of tensioning mechanisms, and the two groups of detection boxes are located on both sides of the two groups of tensioning mechanisms; the steel bar body is clamped by the two groups of tensioning mechanisms, and its two ends are respectively extended into the two detection boxes. During the detection of the present invention, ultra-low temperature detection and normal temperature detection are respectively performed on the two ends of the steel bar body, and a comparison detection of the ultra-low temperature state of the steel bar body is simultaneously realized. During the detection process, the steel bar body is in a stable stress state, realizing the detection and correction function of the steel bar body.

Description

Technical Field

[0001] The present invention relates to the technical field of steel bar detection and correction, in particular to an ultra-low temperature steel bar detection device. Background Art

[0002] With the rapid development of modern engineering technology, especially in the construction of important infrastructure such as bridges, tunnels, and nuclear power plants, the performance requirements for building materials are increasing. As the main load-bearing material in concrete structures, the quality of steel bars directly affects the safety and durability of the entire project. Traditional steel bars are prone to brittle fracture at ultra-low temperatures, reducing the stability and safety of the structure. Therefore, performance testing and correction of steel bars in ultra-low temperature environments is particularly important.

[0003] In the prior art, when inspecting and correcting steel bars, the steel bars need to be placed in a space that simulates the use environment to correct and inspect the state of the steel bars. However, the existing inspection of the ultra-low temperature state of steel bars can only be carried out in a closed space. When a comparison inspection at different temperatures is required, a steel bar needs to be sent to an ultra-low temperature environment and a normal temperature environment for comparison inspection in turn; or two steel bars from the same batch need to be compared and inspected in an ultra-low temperature environment and a normal temperature environment respectively. Sending a steel bar to an ultra-low temperature environment and a normal temperature environment for inspection in turn requires the operator to perform multiple pick-up and placement inspection operations on the steel bar. The operation process is relatively cumbersome and requires multiple inspections to be carried out in succession, which is relatively time-consuming. If two steel bars from the same batch are used for comparison and retrieval, there may be some differences in the texture of the different steel bars, resulting in a certain deviation in the inspection, affecting the accuracy of the inspection results.

[0004] Therefore, we propose an ultra-low temperature steel bar detection device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an ultra-low temperature steel bar detection device, which can simultaneously perform comparative detection of different temperatures on the same steel bar, thereby reducing the detection operation process, saving detection time, and ensuring the accuracy of detection.

[0006] To achieve the above-mentioned object, the present invention provides an ultra-low temperature steel bar detection device for detecting steel bar bodies, the detection device comprising a base plate, a base frame fixed to the base plate, two sets of pre-tensioning components slidably mounted on the base frame, a moving component located above the base plate, and two sets of detection components mounted on the moving component;

[0007] The moving assembly includes a top frame, two top plates and a top plate driving mechanism, the top frame is mounted above the bottom plate through a support, a first bidirectional screw is rotatably mounted below the top frame, a first motor is fixedly mounted on one side of the first bidirectional screw, an output end of the first motor is connected to the first bidirectional screw, two threaded sections in different directions of the first bidirectional screw are respectively threadedly connected to the top plates, the two top plates are both slidably connected to the top frame, the first bidirectional screw is controlled to rotate by the first motor, thereby controlling the two top plates to move toward or in opposite directions along the length direction of the top frame;

[0008] The detection assembly includes a detection box, two sets of detection boxes are respectively installed under two top plates, an air intake valve and an exhaust valve are fixedly connected to the outer surface of the detection box, and a steel bar insertion hole is opened on the cover plate on the adjacent side of the detection box, and a rubber ring is provided at the steel bar insertion hole. An ultrasonic detector and a steel bar support mechanism are provided in the detection box;

[0009] The two movable plates are respectively threadedly connected to the threaded segments corresponding to the second bidirectional screw rods through the second movable plates at their bottoms, and the second bidirectional screw rods are controlled to move by the second motor to move the two movable plates toward each other.

[0010] The two detection boxes are in the same straight line as the two tensioning mechanisms, and are located on both sides of the two tensioning mechanisms. The steel bar body is clamped by the two tensioning mechanisms, and its two ends extend into the two detection boxes respectively.

[0011] A better technical solution of the present invention: the detection device also includes a correction component, which is located between the two sets of tensioning mechanisms. The correction component includes a support, a fixing frame and a fixing ring. The support is fixed on the base plate, and a threaded rod is rotatably installed above the support. A third motor is provided at the end of the threaded rod, and the output end of the third motor is connected to the threaded rod. The fixing frame is slidably connected to the support, and the bottom of the fixing frame is threadedly connected to the threaded rod through a threaded seat; the fixing ring is installed on the fixing frame, and a correction mechanism is provided inside the fixing ring. The steel bar body passes through the fixing ring and is corrected by the correction mechanism.

[0012] The preferred technical solution of the present invention is as follows: the tensioning mechanism is fixedly connected to the first hydraulic rod on the top of the movable plate, and a supporting plate is fixedly connected to the upper end face of the first hydraulic rod, and a connecting rod is symmetrically fixedly connected to the top of the supporting plate, and a pressure plate is fixedly connected between the upper end faces of the two connecting rods, and a fixed rod is symmetrically fixedly connected to the top of the movable plate, and the fixed rod and the supporting plate slide through and extend to the upper side, and a splint is fixedly connected between the upper end faces of the two fixed rods, and the splint is located between the pressure plate and the supporting plate, and an arc groove matching the steel bar body is provided on the outer surface of the adjacent side of the pressure plate and the splint, and a plurality of circular grooves are evenly provided on the inner surface of the arc groove, and balls are arranged on the inner surface of the circular groove.

[0013] The better technical solution of the present invention is: the two inspection boxes are respectively connected to the top plate through the third hydraulic rod; the steel bar support mechanism includes a fourth hydraulic rod fixedly connected to the inner surface of the inspection box, the end face of the fourth hydraulic rod is fixedly connected to a push plate, the outer surface of the push plate is fixedly connected to an abutment plate, the outer surface of the abutment plate is provided with a card slot, the card slot is matched with the steel bar body, the inner surface of the box is symmetrically fixedly connected with a limit rod, and the limit rod and the push plate slide through.

[0014] The preferred technical solution of the present invention is as follows: second slide rails parallel to each other are provided on the bottom surface of the top frame, two second sliders respectively matching the second slide rails are symmetrically provided on each top plate, and each top plate is slidably connected to the two groups of second slide rails through two second sliders; downwardly extending baffles are respectively provided at both ends of the top frame, the first motor is fixed to the outer surface of the baffle at one end of the top frame, the first bidirectional screw rod is rotatably connected between the baffles at both ends of the top frame, and the second slide rails are symmetrically arranged on both sides of the first bidirectional screw rod and are parallel to the first bidirectional screw rod.

[0015] The preferred technical solution of the present invention is as follows: the base frame is composed of a base plate and vertical support plates arranged parallel to both ends of the base plate, two groups of third slide rails parallel to the second bidirectional screw rod are provided on the base plate, the second bidirectional screw rod is rotatably installed between the two vertical support plates of the base frame, the two third slide rails are symmetrically arranged on both sides of the second bidirectional screw rod, and the second motor is fixed to the outer surface of the vertical support plate on one side of the base frame; two moving seats matching the third slide rails are symmetrically provided at the bottom of each movable plate, and each movable plate is slidably connected to the two third slide rails through the two moving seats at the bottom.

[0016] A better technical solution of the present invention is: the fixed frame is an L-shaped bracket, the fixed ring is installed on the vertical support plate of the fixed frame, a rotating ring is provided inside the fixed ring, and the correction mechanism includes a second hydraulic rod fixedly installed on the inner surface of the rotating ring and a correction block fixedly connected to the end face of the second hydraulic rod; the fixed frame is also provided with a rotating ring driving mechanism.

[0017] The better technical solution of the present invention is: the support is provided with vertical baffles on both sides, the threaded rod is rotatably connected between the two vertical baffles, and a first slide rail parallel to the threaded rod is fixedly connected to the bottom of the support, the first slide rail, the second slide rail and the third slide rail are parallel to each other, and the bottom of the fixed frame is slidably connected to the first slide rail through the first slider.

[0018] The better technical solution of the present invention is as follows: the rotating ring driving mechanism includes a fourth motor fixed on the outer surface of the vertical support plate of the fixed frame, the output end of the fourth motor passes through the vertical support plate of the fixed frame, and is fixedly connected to a rotating shaft, and the end of the rotating shaft is fixedly connected to a gear; the fixed ring is fixedly installed near the gear through two side rods; the inner surface of the fixed ring is fixedly connected to a bearing, the rotating ring is fixedly connected to the inner surface of the bearing, the outer surface of the rotating ring is fixedly connected to a gear ring that matches the gear, and the gear is meshed with the gear ring.

[0019] A preferred technical solution of the present invention is as follows: a dry ice particle nozzle is fixedly connected to the inner surface of the rotating ring, and the dry ice particle nozzle is arranged corresponding to the calibration block.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) The detection device of the present invention is provided with two detection boxes. When the steel bar is detected and corrected, the steel bar body will pass through the two detection boxes at the same time. Liquid nitrogen is injected into one of the detection boxes through the use of an air inlet valve and an exhaust valve, so that the interior of the detection box is in an ultra-low temperature environment. The temperature of the detection box is adjusted by a temperature adaptation structure to compensate for the temperature of each structure to ensure the normal operation of each structure, while the other detection box maintains a normal temperature environment. At this time, the two ends of the steel bar body are respectively in an ultra-low temperature environment and a normal temperature environment, and the ultra-low temperature state and normal temperature state of the steel bar body are simultaneously compared and detected, which reduces the detection operation process and saves detection time. Since the comparative detection is performed on the same steel bar, the accuracy of the detection is improved.

[0022] (2) Both detection boxes in the present invention are provided with through holes for steel bars to pass through. The steel bars will be inserted into the detection box through the through holes. The use of rubber rings can enhance the sealing effect and ensure that the temperature in the detection box can be maintained at the temperature to be detected. Moreover, during the detection process, the fourth hydraulic rods on both sides are extended and the abutment plates are driven to move toward the end position of the steel bar body through the connection of the push plates, so that the steel bar body is in a stable stress state, and the position of the steel bar body can be corrected.

[0023] (3) According to the angle of pressure correction applied to the steel bar body as needed, starting the second motor can drive the rotating shaft to rotate, and the rotation of the rotating shaft can drive the gear to follow the rotation. When the gear rotates, it can drive the rotating ring to follow the rotation by engaging with the gear ring. At this time, the correction block can be driven to rotate to a suitable angle to correct the steel bar body. After the correction is completed, the rotation of the rotating ring can also drive the dry ice particle nozzle to follow and realize the rotation adjustment. After the dry ice particle nozzle is connected to the dry ice particle injector, the dry ice particle nozzle can remove dust, rust and other debris attached to the surface of the steel bar body from the position of the dry ice particle nozzle to prevent the debris attached to the surface of the steel bar body from affecting the accuracy of the correction state.

[0024] (4) After the steel bar body is placed, the center position of the steel bar body is aligned with the rotating ring at the center position of the bottom plate. At this time, the first hydraulic rod is started to contract and drive the support plate to move. The support plate can drive the pressure plate to move down through the connection of the connecting rod. At this time, the steel bar body is clamped and fixed in the position between the pressure plate and the clamping plate. After the moving plate moves outward, it can drive the pressure plate and the clamping plate in the clamping state of the steel bar body to move outward. When the pressure plate applies pressure to the steel bar body and moves outward, it can simultaneously apply tension to the two ends of the steel bar body, realize the preliminary adjustment of the pre-tensioning of the steel bar body, so that the overall state of the steel bar body is preliminarily adjusted, which provides convenience for subsequent fine position correction and improves the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall structure of the present invention from another angle;

[0027] Figure 3 Schematic diagram of the structure of the chassis in the present invention;

[0028] Figure 4 Schematic diagram of the structure of the pre-tensioning component in the present invention;

[0029] Figure 5 Schematic diagram of the structure of the correction component of the present invention;

[0030] Figure 6 Schematic diagram of the structure of the rotating ring in the present invention;

[0031] Figure 7 Schematic diagram of the structure of the mobile component in the present invention;

[0032] Figure 8 Schematic diagram of the structure of the detection component of the present invention;

[0033] Figure 9 It is a structural cross-sectional view of the detection box in the present invention.

[0034] In the figure: 1, bottom plate; 2, pillar; 3, bottom frame; 4, pre-tensioning component; 401, moving seat; 402, moving plate; 403, first hydraulic rod; 404, supporting plate; 405, connecting rod; 406, pressure plate; 407, fixed rod; 408, clamping plate; 409, ball; 5, steel bar body; 6, correction component; 601, support; 602, third motor; 603, threaded rod; 604, threaded seat; 605, first slide rail; 606, first slider; 607, fixed frame; 608, fourth motor; 609, rotating shaft; 610, gear; 611, side rod; 612, fixed ring; 613, bearing; 614, rotating ring; 615, gear ring; 616, first Second hydraulic rod; 617, calibration block; 618, dry ice particle nozzle; 7, moving assembly; 701, top frame; 702, first motor; 703, first bidirectional screw rod; 704, first moving block; 705, second slide rail; 706, second slider; 707, top plate; 8, detection assembly; 801, third hydraulic rod; 802, detection box; 803, air inlet valve; 804, exhaust valve; 805, box cover; 806, rubber ring; 807, ultrasonic detector; 808, fourth hydraulic rod; 809, push plate; 810, abutment plate; 811, slot; 812, limit rod; 9, second motor; 10, second bidirectional screw rod; 11, second moving block; 12, third slide rail. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] The embodiment provides a device for detecting ultra-low temperature steel bars. Figures 1 to 9As shown, it is used to perform comparative detection of low temperature and normal temperature on the same steel bar body 5. The detection device includes a bottom plate 1, a bottom frame 3 fixed on the bottom plate 1, a correction component 6, two groups of pre-tensioning components 4 slidably mounted on the bottom frame 3, a moving component 7 located above the bottom plate 1, and a detection component 8 mounted on the moving component 7. The top corners of the bottom plate 1 are fixedly connected to the pillars 2. The moving component 7 includes a top frame 701, two top plates 707 and a top plate driving mechanism. The top frame 701 is fixed on the top of the pillars 2. Second slide rails 705 parallel to each other are provided on the bottom surface of the top frame 701. Two second sliders 706 respectively matching the second slide rails 705 are symmetrically provided on each top plate 707. Each top plate 707 is slidably connected to the two groups of second slide rails 705 through two second sliders 706. The top plate driving mechanism includes a first motor 702 and a first bidirectional screw rod 703 parallel to the two second slide rails 705. The first bidirectional screw rod 703 is rotatably connected between the side baffles at both ends of the top frame 701, and the first motor 702 is fixed to the outer surface of the side baffle at one end of the top frame 701. Its output end passes through the side baffle of the top frame 701 and extends to the inside to be connected with the first bidirectional screw rod 703. The outer surfaces of the two reverse threaded sections of the first bidirectional screw rod 703 are respectively threadedly connected with the first moving block 704. The two first moving blocks 704 are respectively connected to the two top plates 707, and each first moving block 704 is located between the two second sliders 706. The cooperation of the second slide rail 705 and the second slider 706 supports and limits the moving trajectory of the top plate 707.

[0037] An ultra-low temperature steel bar detection device provided in the embodiment, such as Figure 1 and Figure 2 As shown, the detection assembly 8 is provided with two groups, which are respectively installed at the bottom of the two top plates 707. Figure 8 and Figure 9As shown, each detection assembly 8 includes a detection box 802 and a third hydraulic rod 801 fixedly connected above the detection box 802, and the detection box 802 is connected to the top plate 707 through the third hydraulic rod 801; the outer surfaces of the detection box 802 are fixedly connected with an air intake valve 803 and an exhaust valve 804, and the air intake valve 803 and the exhaust valve 804 are both connected to the detection box 802. The detection box 802 is a box structure sealed on four sides, and a steel bar insertion hole matching the steel bar body 5 is symmetrically opened in the middle of the box cover 805 on one side, and a sealing rubber ring 806 is provided on the inner surface of the steel bar insertion hole. The steel bar body 5 can be inserted into the detection box 802 through the steel bar insertion hole, and the gap between the steel bar body 5 and the box cover 805 is sealed by the rubber ring 806. The steel bar insertion holes of the two detection boxes 802 are set on an adjacent side. While the steel bar body 5 is being corrected, the third hydraulic rod 801 is started to extend and drive the detection box 802 to move downward. After the detection box 802 moves downward, the steel bar insertion hole position of the box cover 805 is aligned with the steel bar body 5. The two ends of the steel bar body 5 will be inserted into the interior of the detection box 802 through the corresponding steel bar insertion hole positions respectively. The use of rubber ring 806 can enhance the sealing effect. Then, liquid nitrogen is injected into one of the detection boxes 802 through the air inlet valve 803 and the exhaust valve 804, so that the interior of the detection box 802 is in an ultra-low temperature environment. The other detection box 802 can be set to room temperature or other temperature.

[0038] In the embodiment, Figure 8 and Figure 9 As shown, an ultrasonic detector 807 is fixedly connected to the top of each detection box 802, a fourth hydraulic rod 808 is fixedly connected to the inner surface of the detection box 802, a push plate 809 is fixedly connected to the end surface of the fourth hydraulic rod 808, and an abutment plate 810 is fixedly connected to the outer surface of the push plate 809. A card slot 811 is provided on the outer surface of the abutment plate 810. The card slot 811 is matched with the steel bar body 5. The inner surface of the detection box 802 is symmetrically fixedly connected to a limit rod 812. The limit rod 812 slides through the push plate 809. The two sides of the steel bar body 5 The ends are respectively in ultra-low temperature and normal temperature environments, and then the fourth hydraulic rods 808 on both sides are started to extend. The fourth hydraulic rods 808 drive the abutment plate 810 to move toward the end position of the steel bar body 5 through the connection of the push plate 809. The end of the steel bar body 5 will be inserted into the card slot 811, that is, pressure is applied by the abutment plates 810 on both sides, so that the steel bar body 5 is in a stable stress state. At this time, through the use of the ultrasonic detector 807, the ultrasonic detector 807 can respectively complete the detection of the surface thread sections and the interior of the two ends of the steel bar body 5.

[0039] An ultra-low temperature steel bar detection device in the embodiment, such as Figures 1 to 4As shown, the base frame 3 is composed of a base plate and vertical support plates arranged parallel to both ends of the base plate, and two groups of parallel third slide rails 12 are provided on the base plate, and the two pre-tensioning components 4 are located at the inner position of the base frame 3, and each pre-tensioning component 4 includes a movable plate 402 and a tensioning mechanism located above the movable plate 402, and two movable seats 401 matching the third slide rails 12 are symmetrically provided at the bottom of the movable plate 402, and each pre-tensioning component 4 is slidably connected to the two third slide rails 12 through the two movable seats 401 at the bottom; a second bidirectional screw rod 10 is rotatably installed between the two vertical support plates of the base frame 3, and the second bidirectional screw rod 10 is located between the two third slide rails 12 and parallel to the third slide rails 12, and a second motor 9 is provided at one end of the second bidirectional screw rod 10, and the second motor 9 is fixed to the outer surface of one side of the base frame 3, and the output end of the second motor 9 passes through the side baffle of the base frame 3 and extends to the inside to be connected with the second bidirectional screw rod 10 to control the rotation of the second bidirectional screw rod 10. The second bidirectional screw rod 10 is symmetrically provided with two sections of reverse threads, and the bottom of the movable plate 402 of the two pre-tensioning components 4 is provided with a second movable block 11 that matches the two sections of threads on the second bidirectional screw rod 10 respectively. The two pre-tensioning components 4 are respectively threadedly connected with the corresponding thread sections of the second bidirectional screw rod 10 through the second movable block 11 at the bottom thereof.

[0040] An ultra-low temperature steel bar detection device in the embodiment, such as Figure 3 and Figure 4 As shown, the tensioning mechanism is fixedly connected to the first hydraulic rod 403 on the top of the movable plate 402, and a supporting plate 404 is fixedly connected to the upper end surface of the first hydraulic rod 403, and two connecting rods 405 are symmetrically fixed on the top of the supporting plate 404, and a pressure plate 406 is fixedly connected to the top surface of the two connecting rods 405, and two fixed rods 407 are fixedly connected to the top of the movable plate 402, and the two fixed rods 407 are symmetrically arranged on both sides of the first hydraulic rod 403, and the two fixed rods 407 slide through and extend to the top of the supporting plate 404, and a splint 408 is fixedly connected between the top ends of the two fixed rods 407, and the splint 408 is located between the pressure plate 406 and the supporting plate 404, and the outer surface of the adjacent side of the pressure plate 406 and the splint 408 is provided with an arc groove matching the steel bar body 5, and the inner surface of the arc groove is evenly provided with a plurality of circular grooves, and the inner surface of the circular groove is provided with balls 409.

[0041] After the steel bar body 5 is placed, it is located inside the arc groove between the pressure plate 406 and the clamping plate 408 of the two sets of tensioning mechanisms. The first hydraulic rod 403 is activated to contract and drive the support plate 404 to move. The support plate 404 can drive the pressure plate 406 to move downward through the connection of the connecting rod 405. At this time, the steel bar body 5 is clamped and fixed in the position between the pressure plate 406 and the clamping plate 408. After the steel bar body 5 is clamped and fixed in the position between the pressure plate 406 and the clamping plate 408, the second motor 9 is activated. The second motor 9 drives the second bidirectional screw 10 to rotate. The rotation of the second bidirectional screw 10 can drive the movable plates 402 on both sides to move outward synchronously through the connection of the second movable block 11. When the movable plates 402 move, they slide along the third slide rail 12 through the connection of the movable seat 401.

[0042] An ultra-low temperature steel bar detection device in the embodiment, such as Figure 1 、 Figure 2 、 Figure 5 and Figure 6 As shown, the correction component 6 includes a support 601, an L-shaped fixing frame 607 and a fixing ring 612. The support 601 is fixed on the bottom plate 1, and vertical baffles are provided on both sides thereof. A first slide rail 605 is fixedly connected to the bottom of the support 601. A threaded rod 603 parallel to the first slide rail 605 is provided between the vertical baffles on both sides of the support 601. The first slide rail 605, the second slide rail 705 and the third slide rail 12 are parallel to each other. The threaded rod 603 is rotatably connected between the two vertical baffles of the support 601. A threaded seat 604 and a first slider 606 are provided at the bottom of the fixing frame 607, and The fixing frame 607 is threadedly connected to the threaded rod 603 via the threaded seat 604 at the bottom, and is slidably connected to the first slide rail 605 via the first slider 606 at the bottom. The fixing ring 612 is installed on the vertical support plate of the fixing frame 607. A rotating ring 614 is provided inside the fixing ring 612. A second hydraulic rod 616 is fixedly connected to the inner surface of the rotating ring 614. A correction block 617 is fixedly connected to the end face of the second hydraulic rod 616. The center position of the steel bar body 5 is aligned with the rotating ring 614 at the center position of the base plate 1. The steel bar body 5 can pass through the rotating ring 614 and be corrected by the correction block 617. A third motor 602 is fixedly connected to the outer surface of the vertical baffle on one side of the support 601. The output end of the third motor 602 passes through the vertical baffle of the support 601 and extends to the inside, fixedly connected to the threaded rod 603. Starting the third motor 602 can drive the threaded rod 603 to rotate, and the rotation of the threaded rod 603 can drive the threaded seat 604 to move. The movement of the threaded seat 604 can drive the fixing frame 607 to follow the adjustment of the use position. After the fixing frame 607 moves, it can drive the rotating ring 614 to move to different positions for use.

[0043] An ultra-low temperature steel bar detection device in the embodiment, such as Figure 5 and Figure 6 As shown, the correction component 6 is also provided with a rotating ring driving mechanism, and the rotating ring driving mechanism includes a fourth motor 608 fixed on the outer surface of the vertical support plate of the fixed frame 607, the output end of the fourth motor 608 passes through the vertical support plate of the fixed frame 607, and is fixedly connected to the rotating shaft 609, and the end face of the rotating shaft 609 is fixedly connected to the gear 610; the fixed ring 612 is fixedly installed near the gear 610 through two side rods 611; the inner surface of the fixed ring 612 is fixedly connected to the bearing 613, and the rotating ring 614 is fixedly connected to the inner surface of the bearing 613, and the outer surface of the rotating ring 614 is fixedly connected to the gear ring 615 that cooperates with the gear 610, and the gear 610 is meshed with the gear ring 615. Starting the fourth motor 608 can drive the shaft 609 to rotate, and the rotation of the shaft 609 can drive the gear 610 to rotate accordingly. When the gear 610 rotates, it can drive the rotating ring 614 to rotate accordingly by meshing with the gear ring 615. At this time, the correction block 617 can be driven to rotate to a suitable angle to correct the steel bar body 5. Figure 5 As shown, a dry ice particle nozzle 618 is fixedly connected to the inner surface of the rotating ring 614 in the embodiment. The dry ice particle nozzle 618 is arranged corresponding to the correction block 617. The rotation of the rotating ring 614 can also drive the dry ice particle nozzle 618 to follow and realize rotation adjustment. After the dry ice particle nozzle 618 is connected to the dry ice particle injector, dust and other debris attached to the surface of the steel bar body 5 can be removed from the position of the dry ice particle nozzle 618.

[0044] The usage method and working principle of this device: When inspecting and correcting steel bars, after placing the steel bar body 5 to the device position, the stress of the steel bar body 5 is adjusted by using the pre-tensioning component 4, and then the shape of each position of the steel bar body 5 is corrected by using the correction component 6. Next, the moving component 7 and the detection component 8 are used in coordination to make the two ends of the steel bar body 5 respectively in high and low temperature environments, and the two ends of the steel bar body 5 are used to form a state comparison to complete the ultra-low temperature state detection of the steel bar body 5.

[0045] When the inspection starts, the steel bar body 5 is sent into the inner position of the pre-tensioning component 4 and the correction component 6. When the steel bar body 5 is put in, it is between the pressure plate 406 and the clamping plate 408, and the inner position of the rotating ring 614. After the steel bar body 5 is put in, the center position of the steel bar body 5 is aligned with the rotating ring 614 at the center position of the bottom plate 1. At this time, the first hydraulic rod 403 is started to contract and drive the support plate 404 to move. The support plate 404 can drive the pressure plate 406 to move down through the connection of the connecting rod 405. At this time, the steel bar body 5 is clamped and fixed in the position between the pressure plate 406 and the clamping plate 408. Then the second motor 9 is started, and the second motor 9 drives the second bidirectional screw rod 10 to rotate. The rotation of the second bidirectional screw rod 10 can drive the movable plates 402 on both sides to move synchronously outward through the connection of the second moving block 11. When the movable plate 402 moves, it will slide along the third slide rail 12 through the connection of the movable seat 401, that is, through the third slide rail 1 2 and the movable seat 401 play a supporting and limiting role in the movement of the movable plate 402. After the movable plate 402 moves outward, it can drive the pressure plate 406 and the clamping plate 408 that are in a clamping state of the steel bar body 5 to move outward. While the pressure plate 406 applies pressure to the steel bar body 5 and moves outward, it can simultaneously apply tension to both ends of the steel bar body 5, so that the steel bar body 5 can be pre-tensioned after being stressed to achieve preliminary correction and adjustment. While performing pre-tensioning and preliminary correction, the real-time stress and deformation of the steel bar body 5 can be monitored in real time by attaching strain gauges to the surface of the steel bar body 5; while the pressure plate 406 and the clamping plate 408 clamp the steel bar body 5 and move, the setting of the ball 409 can reduce the wear of the steel bar body 5. After the pre-tensioning treatment of the steel bar body 5 is completed by moving to the outside through the use of the pre-tensioning component 4, the state of the steel bar body 5 is detected in conjunction with the strain gauge.

[0046] The detection device of the present invention performs fine correction on the steel bar body 5 through the use of the correction component 6. At this time, the rotating ring 614 is at the outer side of the steel bar body 5. By starting the second hydraulic rod 616, the correction block 617 is driven to move to apply pressure to the specific position of the steel bar body 5 to complete the correction. According to the angle of pressure correction of the steel bar body 5 as needed, starting the fourth motor 608 can drive the rotating shaft 609 to rotate, and the rotation of the rotating shaft 609 can drive the gear 610 to follow the rotation. When the gear 610 rotates, it can drive the rotating ring 614 to follow the rotation by engaging with the gear ring 615. At this time, the correction block 617 can be driven to rotate to a suitable angle to correct the steel bar body 5. After the correction is completed, the rotation of the rotating ring 614 can also drive the dry ice particle nozzle 618 to follow the actual Now rotate and adjust. After the dry ice particle nozzle 618 is connected to the dry ice particle injector, dust, rust and other debris on the surface of the steel body 5 can be removed from the position of the dry ice particle nozzle 618. After completing the correction and impurities removal at a certain position of the steel body 5, starting the third motor 602 can drive the threaded rod 603 to rotate. The rotation of the threaded rod 603 can drive the threaded seat 604 to move. The movement of the threaded seat 604 drives the fixed frame 607 to follow the adjustment of the use position. After the fixed frame 607 moves, it can drive the rotating ring 614 to move to different positions for use. The fixed frame 607 will move along the first slide rail 605 through the connection of the first slider 606, that is, the cooperation of the first slider 606 and the second slide rail 705 plays a role in supporting and limiting the movement of the fixed frame 607.

[0047] When the first and second movable blocks 704 are connected, the first and second movable blocks 705 are connected, and the first and second movable blocks 706 are connected, so that the first and second movable blocks 707 are connected, so that the first and second movable blocks 704 are connected, so that the first and second movable blocks 707 are connected, so that the first and second movable blocks 706 ... Valve 804 is used to inject liquid nitrogen into one of the detection boxes 802, so that the interior of the detection box 802 is in an ultra-low temperature environment. The temperature adaptation and adjustment structure inside the detection box 802 is used to compensate for the temperature of each structure to ensure the normal operation of each structure, while the other detection box 802 maintains a normal temperature environment. At this time, the two ends of the steel bar body 5 are respectively in an ultra-low temperature and normal temperature environment. Then, the fourth hydraulic rod 808 on both sides is started to extend. The fourth hydraulic rod 808 drives the abutment plate 810 to move toward the end position of the steel bar body 5 through the connection of the push plate 809. The end of the steel bar body 5 will be inserted into the slot 811, that is, pressure is applied by the abutment plates 810 on both sides, so that the steel bar body 5 is in a stable stress state. At this time, through the use of the ultrasonic detector 807, the ultrasonic detector 807 can respectively complete the detection of the surface thread section and the interior of the two ends of the steel bar body 5, thereby realizing the detection and correction function of the steel bar body 5, and at the same time, the control detection of the ultra-low temperature state of the steel bar body 5 can be realized simultaneously.

[0048] The wiring diagram of the first hydraulic rod 403, the third motor 602, the fourth motor 608, the second hydraulic rod 616, the dry ice particle nozzle 618, the first motor 702, the third hydraulic rod 801, the air inlet valve 803, the exhaust valve 804, the ultrasonic detector 807, the fourth hydraulic rod 808 and the second motor 9 in the present invention is common knowledge in the art. Its working principle is already known technology, and its model is selected according to actual use. Therefore, the control method and wiring layout of the first hydraulic rod 403, the third motor 602, the fourth motor 608, the second hydraulic rod 616, the dry ice particle nozzle 618, the first motor 702, the third hydraulic rod 801, the air inlet valve 803, the exhaust valve 804, the ultrasonic detector 807, the fourth hydraulic rod 808 and the second motor 9 will not be explained in detail.

[0049] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An ultra-low temperature steel bar detection device for detecting steel bar bodies, characterized in that: The detection device includes a base plate, a base frame fixed on the base plate, two sets of pre-tensioning components slidably mounted on the base frame, a moving component located above the base plate, and two sets of detection components mounted on the moving component; The moving assembly includes a top frame, two top plates and a top plate driving mechanism, the top frame is mounted above the bottom plate through a support, a first bidirectional screw is rotatably mounted below the top frame, a first motor is fixedly mounted on one side of the first bidirectional screw, an output end of the first motor is connected to the first bidirectional screw, two threaded sections in different directions of the first bidirectional screw are respectively threadedly connected to the top plates, the two top plates are both slidably connected to the top frame, the first bidirectional screw is controlled to rotate by the first motor, thereby controlling the two top plates to move toward or in opposite directions along the length direction of the top frame; The detection assembly includes a detection box, two sets of detection boxes are respectively installed under two top plates, an air intake valve and an exhaust valve are fixedly connected to the outer surface of the detection box, and a steel bar insertion hole is opened on the cover plate on the adjacent side of the detection box, and a rubber ring is provided at the steel bar insertion hole. An ultrasonic detector and a steel bar support mechanism are provided in the detection box; The two movable plates are respectively threadedly connected to the threaded segments corresponding to the second bidirectional screw rods through the second movable plates at their bottoms, and the second bidirectional screw rods are controlled to move by the second motor to move the two movable plates toward each other. The two sets of detection boxes are in the same straight line with the two sets of tensioning mechanisms, and the two sets of detection boxes are located on both sides of the two sets of tensioning mechanisms. The steel bar body is clamped by the two sets of tensioning mechanisms, and its two ends extend into the two detection boxes respectively; The detection device also includes a correction component, which is located between the two sets of tensioning mechanisms. The correction component includes a support, a fixing frame and a fixing ring. The support is fixed on the base plate, and a threaded rod is rotatably installed above the support. A third motor is provided at the end of the threaded rod, and the output end of the third motor is connected to the threaded rod. The fixing frame is slidably connected to the support, and the bottom of the fixing frame is threadedly connected to the threaded rod through a threaded seat; the fixing ring is installed on the fixing frame, and a correction mechanism is provided inside the fixing ring. The steel bar body passes through the fixing ring and is corrected by the correction mechanism.

2. The ultra-low temperature steel bar detection device according to claim 1, characterized in that: The tensioning mechanism is fixedly connected to the first hydraulic rod on the top of the movable plate, and the upper end surface of the first hydraulic rod is fixedly connected to the supporting plate, and the top of the supporting plate is symmetrically fixedly connected to a connecting rod, and a pressure plate is fixedly connected between the upper end surfaces of the two connecting rods, and the top of the movable plate is symmetrically fixedly connected to a fixing rod, and the fixing rod and the supporting plate slide through and extend to the upper side, and a splint is fixedly connected between the upper end surfaces of the two fixing rods, and the splint is located between the pressure plate and the supporting plate, and an arc groove matching the steel bar body is provided on the outer surface of the adjacent side of the pressure plate and the splint, and a plurality of circular grooves are evenly provided on the inner surface of the arc groove, and balls are arranged on the inner surface of the circular groove.

3. The ultra-low temperature steel bar detection device according to claim 1, characterized in that: The two inspection boxes are respectively connected to the top plate through a third hydraulic rod; the steel bar support mechanism includes a fourth hydraulic rod fixedly connected to the inner surface of the inspection box, the end face of the fourth hydraulic rod is fixedly connected to a push plate, the outer surface of the push plate is fixedly connected to an abutment plate, the outer surface of the abutment plate is provided with a card slot, the card slot is matched with the steel bar body, the inner surface of the inspection box is symmetrically fixedly connected with a limit rod, and the limit rod and the push plate slide through.

4. The ultra-low temperature steel bar detection device according to claim 1, characterized in that: Second slide rails parallel to each other are provided on the bottom surface of the top frame, and two second sliders matching the second slide rails are symmetrically provided on each top plate, and each top plate is slidably connected to the two sets of second slide rails through two second sliders; downwardly extending baffles are respectively provided at both ends of the top frame, the first motor is fixed to the outer surface of the baffle at one end of the top frame, the first bidirectional screw rod is rotatably connected between the baffles at both ends of the top frame, and the second slide rails are symmetrically arranged on both sides of the first bidirectional screw rod and are parallel to the first bidirectional screw rod.

5. The ultra-low temperature steel bar detection device according to claim 1, characterized in that: The base frame is composed of a base plate and vertical support plates arranged parallel to both ends of the base plate, two groups of third slide rails parallel to the second bidirectional screw rod are provided on the base plate, the second bidirectional screw rod is rotatably installed between the two vertical support plates of the base frame, the two third slide rails are symmetrically arranged on both sides of the second bidirectional screw rod, and the second motor is fixed to the outer surface of the vertical support plate on one side of the base frame; two moving seats matching the third slide rails are symmetrically provided at the bottom of each movable plate, and each movable plate is slidably connected to the two third slide rails through the two moving seats at the bottom.

6. The ultra-low temperature steel bar detection device according to claim 1, characterized in that: The fixing frame is an L-shaped bracket, the fixing ring is installed on the vertical support plate of the fixing frame, a rotating ring is provided inside the fixing ring, and the correction mechanism includes a second hydraulic rod fixedly installed on the inner surface of the rotating ring and a correction block fixedly connected to the end face of the second hydraulic rod; a rotating ring driving mechanism is also provided on the fixing frame.

7. The ultra-low temperature steel bar detection device according to claim 1, characterized in that: The support is provided with vertical baffles on both sides, the threaded rod is rotatably connected between the two vertical baffles, and a first slide rail parallel to the threaded rod is fixedly connected to the bottom of the support. The first slide rail, the second slide rail and the third slide rail are parallel to each other, and the bottom of the fixed frame is slidably connected to the first slide rail through the first slider.

8. The ultra-low temperature steel bar detection device according to claim 6, characterized in that: The rotating ring driving mechanism includes a fourth motor fixed to the outer surface of the vertical support plate of the fixed frame, the output end of the fourth motor passes through the vertical support plate of the fixed frame and is fixedly connected to a rotating shaft, and the end of the rotating shaft is fixedly connected to a gear; the fixed ring is fixedly installed near the gear through two side rods; the inner surface of the fixed ring is fixedly connected to a bearing, the rotating ring is fixedly connected to the inner surface of the bearing, and the outer surface of the rotating ring is fixedly connected to a gear ring that matches the gear, and the gear is meshed with the gear ring.

9. The ultra-low temperature steel bar detection device according to claim 6, characterized in that: A dry ice particle nozzle is fixedly connected to the inner surface of the rotating ring, and the dry ice particle nozzle is arranged corresponding to the calibration block.

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