Safety lifting device for radiation source mounting assembly

Abstract

The utility model discloses a safety lifting device for a radiation source mounting component, which comprises a source storage well, a plurality of guide rods uniformly distributed on the source storage well, a lifting plate slidably arranged among the guide rods, a plurality of linear guide rails and a plurality of support clamping jaws arranged on the lifting plate, guide grooves matched with the linear guide rails and clamping grooves capable of being connected with the supporting clamping jaws in a clamped mode are formed in the side walls of the radiation source mounting assemblies, a plurality of winches are symmetrically arranged on the outer side of the source storage well, steel wire ropes in the winches extend into the source storage well to be connected with the lifting plate, and a plurality of telescopic supporting assemblies are further symmetrically arranged on the source storage well. The lifting device has the advantages that the radiation source mounting assembly and the lifting plate can be automatically locked and unlocked, the radiation source mounting assembly and the lifting device can be conveniently disassembled and assembled, and manual disassembly and assembly are not needed.

Description

Technical Field

[0001] The utility model relates to the field of irradiation equipment, in particular to a safety lifting device for a radiation source installation component. Background Art

[0002] In the automated irradiation system, a lifting device is required to first sink the source rack containing the cobalt source rod and other radiation sources into the radiation pool for isolation. When irradiation work is required, the source rack is pulled out of the radiation pool by the lifting device to irradiate the goods. Currently, the source racks on the market are generally fixedly connected to the lifting device by bolts or other connectors, which will lead to a problem that loading and unloading the radiation source is very cumbersome.

[0003] Our company has disclosed a radiation source installation assembly with a multiple protection structure with the publication number: CN220106043U. In this scheme, since the cobalt source rod needs to be placed in the source tank first, and then the source tank is placed in the mounting hole of the source rack, and finally the source tank is restricted by covering the source rack with a pressure plate, if the source rack in this scheme is connected to the lifting device with bolts, when changing the source or overhauling, the staff needs to approach the lifting device for disassembly and assembly, and the lifting device is generally installed in the source storage well. When the staff approaches the lifting device, there is a risk of falling into the source storage well, so extremely complex protection measures need to be implemented for the staff to disassemble and assemble the radiation source installation assembly. Utility Model Content

[0004] The utility model aims to provide a safety lifting device for a radiation source installation component, which can realize automatic locking and unlocking between the radiation source installation component and the lifting device without manual operation.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a safe lifting device for a radiation source installation assembly, comprising: a source storage well, three guide rods are evenly distributed on the left and right sides of the bottom wall of the source storage well, a circular lifting plate is slidably arranged between the guide rods, a plurality of linear guide rails and supporting clamps are vertically arranged on the lifting plate, and the supporting clamps include: a mounting plate, a fixing seat, and a <shaped plate, the mounting plate is vertically welded to the lifting plate, the fixing seat is fixed to the mounting plate, the <shaped plate is rotatably arranged in the fixing seat through a hinge shaft, and the <shaped plate is rotatably arranged in the fixing seat. A tension spring is arranged between the upper arm of the plate and the fixed seat, a linear block is arranged horizontally on the upper arm of the <-shaped plate, a support arm is arranged horizontally on the lower arm of the <-shaped plate, guide grooves matching the linear guide rails and slots capable of accommodating the linear blocks are arranged on the side walls of the radiation source mounting assembly, the height of the slots on the radiation source mounting assembly is higher than the height of the linear blocks, a number of winches are symmetrically arranged on the outside of the source storage well, the wire rope in the winch extends into the source storage well and is connected to the lifting plate, and a number of telescopic support assemblies are also symmetrically arranged on the source storage well.

[0006] Furthermore, the aforementioned safe lifting device for the radiation source installation assembly, wherein three telescopic support assemblies are evenly distributed along the circumference on the front and rear sides of the top wall of the source storage well, and the telescopic support assembly includes: a cylinder, a support plate, a mounting groove is provided on the top wall of the source storage well, a U-shaped groove plate is provided on both inner side walls of the mounting groove, a support plate is slidably clamped between the U-shaped grooves of the two U-shaped groove plates, a cylinder is fixedly provided between the two U-shaped groove plates, and the piston rod on the cylinder is connected to the support plate through a connecting plate.

[0007] Furthermore, the aforementioned safe lifting device for the radiation source installation assembly, wherein three winches are evenly distributed along the circumference on the left and right sides of the source storage well, and three guide wheel groups are evenly distributed along the circumference on the left and right sides of the top wall of the source storage well, each guide wheel group includes: an inner guide wheel and an outer guide wheel, the inner guide wheel extends inwardly from the inner wall of the source storage well, and the outer guide wheel extends outwardly from the outer wall of the source storage well, and the wire rope on the winch is sequentially wound around the outer guide wheel and the inner guide wheel and then connected to the lifting plate.

[0008] Furthermore, in the aforementioned safe lifting device for the radiation source installation assembly, three hooks with anti-slip plates are evenly distributed along the circumference on the left and right sides of the lifting plate, and the wire rope on the winch is wound around the hooks and fixed by a rope clamp.

[0009] Furthermore, in the aforementioned safety lifting device for the radiation source installation assembly, two linear guide rails are welded on the left and right sides of the lifting plate, a diagonal support plate is welded between the linear guide rails and the lifting plate, and the mounting plate in the support clamp is welded to the two diagonal support plates on the same side.

[0010] Furthermore, in the aforementioned safe lifting device for the radiation source installation assembly, a linear stopper is provided on the support arm.

[0011] Furthermore, in the aforementioned safe lifting device for the radiation source installation assembly, an avoidance groove is provided on the lifting plate below the supporting clamp, and a support foot is provided in the avoidance groove.

[0012] Furthermore, in the aforementioned safe lifting device for the radiation source installation assembly, a plurality of buffer pads made of PTFE material are arranged on the bottom wall of the source storage well located below the lifting plate.

[0013] Furthermore, in the aforementioned safe lifting device for the radiation source installation assembly, a limiting sleeve is provided on the guide rod.

[0014] The utility model has the advantages that: the radiation source installation assembly cooperates with the linear guide rail on the lifting plate to guide the radiation source installation assembly, ensures that the radiation source installation assembly is fixed at a specified position and limits the left and right directions of the radiation source installation assembly, and the linear clamping block of the support clamping claw on the lifting plate can limit the left and right directions and the up and down directions of the radiation source installation assembly after being clamped into the clamping groove of the radiation source installation assembly, so that the radiation source installation assembly is automatically locked on the lifting plate, when the radiation source installation assembly moves upward along the linear guide rail under the action of the crane, the linear clamping block on the support clamping claw can automatically disengage from the clamping groove of the radiation source installation assembly, so that the radiation source installation assembly is automatically unlocked from the lifting plate, and the radiation source installation assembly is conveniently transported to the ground for source replacement or maintenance, and no manual disassembly and assembly are required, thereby reducing the operating risk of the staff; after the hoist drives the lifting plate and the radiation source installation assembly on the lifting plate to be separated from the liquid surface, the lifting plate is supported by the telescopic support mechanism, which can reduce the tension on the wire rope, thereby protecting the wire rope and extending the service life of the wire rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure in a top view of the safety lifting device for a radiation source installation assembly according to the utility model.

[0016] Figure 2 yes Figure 1 Schematic diagram of part of the structure in the middle section direction.

[0017] Figure 3 yes Figure 1 Schematic diagram of the local enlarged structure in the A direction.

[0018] Figure 4 yes Figure 2 Schematic diagram of the local enlarged structure in the B direction. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0020] like Figure 1 to Figure 4As shown, the safety lifting device for the radiation source installation assembly described in the utility model comprises: a source storage well 1, three guide rods 11 are evenly distributed on the circumference of the left and right sides of the bottom wall of the source storage well 1, a limit sleeve 12 is arranged on the top of the guide rod 11, a circular lifting plate 2 is slidably arranged between the six guide rods 11, a plurality of buffer pads 13 made of PTFE material are arranged on the bottom wall of the source storage well 1 below the lifting plate 2, two linear guide rails 21 are welded on the left and right sides of the lifting plate 2, a diagonal support plate 22 is welded between the linear guide rail 21 and the lifting plate 2, and a supporting claw is arranged between the two diagonal support plates 22, and the supporting claw comprises: a mounting plate 3, a fixing seat 31, and a mold plate 32, the mounting plate 3 and the lifting plate 2 and the same side The two diagonal support plates 22 are welded together, the fixing seat 31 is fixed on the mounting plate 3, the < plate 32 is rotatably arranged in the fixing seat 31 through the hinge shaft 33, a tension spring 34 is arranged between the upper arm of the < plate 32 and the fixing seat 31, a linear block 35 is horizontally arranged on the upper arm of the < plate 32, a support arm 36 is horizontally arranged on the lower arm of the < plate 32, a linear stopper 37 is arranged on the support arm 36, an avoidance groove 23 is arranged on the lifting plate 2 located below the supporting clamp, and a support foot 24 is arranged in the avoidance groove 23, when the support arm 36 on the < plate 32 abuts against the support foot 24, the support surface of the support arm 36 is not higher than the top surface of the lifting plate 2, and the left and right side walls of the radiation source mounting assembly 4 are provided with linear guide rails 2 1 and a guide groove 41 adapted to the source storage well 1 and a slot 42 capable of accommodating the linear block 35. The height of the slot 42 is higher than the height of the linear block 35. The slot 42 is higher than the linear block 35, so that the linear block 35 can be smoothly screwed into the slot 42. Three winches 5 are evenly distributed along the circumference on the left and right sides of the source storage well 1. Three guide wheel groups are evenly distributed on the left and right sides of the top wall of the source storage well 1. Each guide wheel group includes: an inner guide wheel 51 and an outer guide wheel 52. The inner guide wheel 51 extends inwardly from the inner wall of the source storage well 1, and the outer guide wheel 52 extends outwardly from the outer wall of the source storage well 1. The wire rope 53 on the winch 5 is sequentially wound around the outer guide wheel 52 and the inner guide wheel 51 and then connected to the lifting plate 2 to prevent the wire rope 53 from rubbing against the source storage well 1. Three hooks 25 with anti-slip plates are evenly distributed along the circumference on both sides of the left and right sides. The wire rope 53 on the winch 5 is wound around the hook 25 and fixed by a rope clamp. The anti-slip plate in the hook 25 can prevent the wire rope 53 from detaching from the hook 25. Three telescopic support components are evenly distributed along the circumference on the front and back sides of the top wall of the storage well 1. The telescopic support components include: a cylinder 6, a support plate 61, a mounting groove 14 is provided on the top wall of the storage well 1, and a U-shaped groove plate 62 is provided on both inner side walls of the mounting groove 14. A support plate 61 is slidably clamped between the U-shaped grooves of the two U-shaped groove plates 62, and a cylinder 6 is fixedly provided between the two U-shaped groove plates 62. The piston rod on the cylinder 6 is connected to the support plate 61 through a connecting plate 63.

[0021] When in use, all winches 5 simultaneously reel in the wire rope 53 to drive the lifting plate 2 to move upward along the guide rod 11. When the lifting plate 2 is upwardly abutted against the limit sleeve 12, the cylinder 6 in the telescopic support assembly drives the support plate 61 to extend in the direction of the lifting plate 2 until the support plate 61 extends under the lifting plate 2 to support the lifting plate 2. After supporting the lifting plate 2, the support plate 61 can reduce the tension on the wire rope 53, thereby protecting the wire rope 53 and extending the service life of the wire rope 53. Then, a crane is used to lift the radiation source installation assembly 4 equipped with the radiation source to the top of the lifting plate 2, and the guide groove 41 on the radiation source installation assembly 4 is clamped with the corresponding linear guide rail 21. The radiation source installation assembly 4 slowly descends along the linear guide rail 21. When the radiation source installation assembly 4 descends to contact the support arm 36 in the support clamp, the radiation source installation assembly 4 will Drive the support arm 36 and the < plate 32 to rotate, and the < plate 32 will overcome the tension of the tension spring 34 and rotate toward the radiation source installation assembly 4. When the support arm 36 rotates and abuts against the support foot 24 in the avoidance groove 23, the radiation source installation assembly 4 abuts against the lifting plate 2, and the straight line block 35 on the < plate 32 is just inserted into the slot 42 on the corresponding side to position the radiation source installation assembly 4, and the straight line block 37 on the support arm 36 abuts against the side wall of the radiation source installation assembly 4 to also play a positioning role. Then the crane is evacuated from the radiation source installation assembly 4, and the support arm 61 in the telescopic support assembly retracts and no longer supports the lifting plate 2. All winches 5 simultaneously unwind the wire rope 53 to drive the lifting plate 2 to move downward along the guide rod 11 until the lifting plate 2 abuts against the buffer pad 13 in the source storage well 1. The buffer pad 13 prevents the lifting plate 2 from directly colliding with the source storage well 1. At this time, the radiation source installation assembly 4 and the radiation source are sunk together in the water of the storage well 1 to achieve isolation. When irradiation work is required, the winch 5 is used to drive the lifting plate 2 and the radiation source installation assembly 4 to move upward to the liquid surface away from the storage well 1, and then the telescopic support assembly is used for support. Since the guide rod 11 in the storage well 1 and the linear guide rail 21 on the lifting plate 2 are located on the left and right sides, they avoid the radiation area of ​​the radiation source installation assembly 4, so as not to interfere with the irradiation work of the radiation source in the radiation source installation assembly 4. When the source needs to be replaced, it only needs to be re-installed on the radiation source installation assembly 4 with a crane and then lifted up. When the radiation source installation assembly 4 is no longer pressed against the support arm 36 in the support clamp, the < mold plate 32 will be reset under the tension of the tension spring 34, and the linear block 35 on the mold plate 32 will be separated from the slot 42 on the radiation source installation assembly 4, and the radiation source installation assembly 4 can smoothly separate from the linear guide rail 21 upward.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not depart from the spirit and scope of the utility model should be included in the scope of protection of the claims of the utility model.

Claims

1. A safe lifting device for the radiation source mounting assembly, comprising: A storage well, characterized in that: three guide rods are evenly distributed on the circumference of the left and right sides of the bottom wall of the storage well, a circular lifting plate is slidably arranged between the guide rods, and a plurality of linear guide rails and supporting clamps are vertically arranged on the lifting plate, and the supporting clamps include: a mounting plate, a fixing seat, and a <-shaped plate, the mounting plate is vertically welded on the lifting plate, the fixing seat is fixed on the mounting plate, the <-shaped plate is rotatably arranged in the fixing seat through a hinge shaft, a tension spring is arranged between the upper arm of the <-shaped plate and the fixing seat, a linear block is horizontally arranged on the upper arm of the <-shaped plate, and a supporting arm is horizontally arranged on the lower arm of the <-shaped plate, guide grooves adapted to the linear guide rails and clamping grooves capable of accommodating the linear clamping blocks are arranged on the side walls of the radiation source mounting assembly, the height of the clamping grooves on the radiation source mounting assembly is higher than the height of the linear clamping blocks, a plurality of winches are symmetrically arranged on the outside of the storage well, the wire rope in the winch extends into the storage well and is connected to the lifting plate, and a plurality of telescopic support assemblies are also symmetrically arranged on the storage well.

2. The safety lifting device for the radiation source installation assembly according to claim 1, characterized in that: Three telescopic support assemblies are evenly distributed along the circumference on both the front and rear sides of the top wall of the storage well, and the telescopic support assembly includes: a cylinder and a support plate. A mounting groove is arranged on the top wall of the storage well, and a U-shaped groove plate is arranged on both inner side walls of the mounting groove. A support plate is slidably clamped between the U-shaped grooves of the two U-shaped groove plates, and a cylinder is fixedly arranged between the two U-shaped groove plates, and a piston rod on the cylinder is connected to the support plate through a connecting plate.

3. The safety lifting device for the radiation source installation assembly according to claim 2, characterized in that: There are three winches evenly distributed along the circumference on the left and right sides of the storage well, and three guide wheel groups evenly distributed along the circumference on the left and right sides of the top wall of the storage well. Each guide wheel group includes: an inner guide wheel and an outer guide wheel. The inner guide wheel extends inward from the inner wall of the storage well, and the outer guide wheel extends outward from the outer wall of the storage well. The wire rope on the winch is wound around the outer guide wheel and the inner guide wheel in sequence and then connected to the lifting plate.

4. The safety lifting device for the radiation source installation assembly according to claim 3, characterized in that: Three hooks with anti-slip plates are evenly distributed along the circumference on the left and right sides of the lifting plate. The wire rope on the winch is wound around the hooks and fixed by rope clamps.

5. The safety lifting device for a radiation source installation assembly according to claim 1, characterized in that: Two linear guide rails are welded on both sides of the lifting plate, an oblique support plate is welded between the linear guide rail and the lifting plate, and a mounting plate in the supporting clamp is welded to the two oblique support plates on the same side.

6. The safety lifting device for a radiation source installation assembly according to claim 1, characterized in that: A linear stopper is arranged on the supporting arm.

7. The safety lifting device for a radiation source installation assembly according to claim 1, characterized in that: An avoidance groove is arranged on the lifting plate below the supporting clamping claw, and a supporting foot is arranged in the avoidance groove.

8. The safety lifting device for a radiation source installation assembly according to claim 1, characterized in that: A plurality of buffer pads made of PTFE material are arranged on the bottom wall of the source storage well below the lifting plate.

9. The safety lifting device for a radiation source installation assembly according to claim 1, characterized in that: A limit sleeve is arranged on the guide rod.

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