Beam baffle opening and closing device for accelerator

Abstract

The utility model provides a beam baffle opening and closing device for an accelerator, the beam baffle opening and closing device is installed in combination with a scanning box and is in transmission connection with a beam baffle, the beam baffle opening and closing device for the accelerator comprises a cylinder driving assembly, a transmission assembly, a group of side connecting assemblies and a feedback assembly, the cylinder driving assembly is installed in combination with the scanning box, and the transmission assembly is in transmission connection with the beam baffle. The transmission assembly and the scanning box are installed in a combined mode, the transmission assembly is in transmission connection with the air cylinder driving assembly, the beam baffle is in transmission connection with the transmission assembly, the two ends of the beam baffle are rotationally connected with the scanning box through the side connecting assemblies, and the feedback assembly and the transmission assembly are installed in a combined mode. The feedback assembly and the air cylinder driving assembly are both electrically connected with the control device. By improving the transmission assembly for driving the beam baffle to open and close, the reliability of the transmission structure is improved, and the failure of driving the beam baffle is prevented; through adding a feedback assembly, whether the beam baffle plate moves in place is determined.

Description

Technical Field

[0001] The utility model relates to the technical field related to electron accelerators, and more precisely to a beam baffle opening and closing device for an accelerator. Background Art

[0002] Electron accelerator is an important equipment in the field of radiation processing. During the radiation processing of electron accelerator, the beam baffle on its beam extraction system can temporarily block the unstable beam in the initial beam emission stage, preventing the unstable beam from acting on the product and causing uneven radiation dose and incorrect dose; the beam baffle can also protect the titanium foil of the scanning box from being broken by the broken wire head during the threading process of the equipment under the beam, preventing serious accidents that damage the vacuum. In addition, whether the beam baffle can be fully opened directly affects the irradiation effect on the product. Therefore, how to accurately and effectively control the beam baffle is crucial.

[0003] The beam baffle of the existing accelerator is installed on the scanning box of the accelerator. The beam baffle is driven to open and close by the cylinder and the transmission assembly, and the opening and closing state of the beam baffle is controlled according to the working condition of the accelerator. After the beam baffle is opened and closed many times, the transmission assembly is prone to desoldering and failure, and the lack of a detection structure makes it impossible to accurately determine whether the beam baffle is fully opened. In the above situation, the beam baffle cannot play an effective role in protecting products and equipment, which will cause the product to be burned and scrapped or the accelerator to be damaged, increasing costs and affecting safety. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a beam baffle opening and closing device for an accelerator, which improves the reliability of the transmission structure by improving the transmission component that drives the beam baffle to open and close, and prevents failure when driving the beam baffle; and determines whether the beam baffle has moved into place by adding a feedback component.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a beam baffle opening and closing device for an accelerator, which is installed in combination with a scanning box and is transmission-connected to the beam baffle. The beam baffle opening and closing device for an accelerator comprises a cylinder drive assembly, a transmission assembly, a group of side connection assemblies and a feedback assembly. The cylinder drive assembly is installed in combination with the scanning box, the transmission assembly is installed in combination with the scanning box, and the transmission assembly is transmission-connected to the cylinder drive assembly. The beam baffle is transmission-connected to the transmission assembly, and both ends of the beam baffle are rotatably connected to the scanning box through the side connection assemblies respectively. The feedback assembly is installed in combination with the transmission assembly, and the feedback assembly and the cylinder drive assembly are both electrically connected to a control device.

[0006] Preferably, the cylinder drive assembly comprises a cylinder mounting box and a cylinder mounted inside the cylinder mounting box, the output shaft of the cylinder passes through the bottom of the cylinder mounting box, and the cylinder mounting box is fixedly connected to the scanning box.

[0007] Preferably, the transmission assembly includes a cylinder joint, a swing arm, a positioning shaft, a group of positioning blocks and a group of connecting rods, the cylinder joint is fixedly connected to the output shaft of the cylinder, one end of the swing arm is transmission-connected to the cylinder joint, and the other end is fixedly connected to the positioning shaft, the middle part of the positioning shaft is connected to the swing arm, the two ends of the positioning shaft are respectively rotatably inserted into the two positioning blocks, the positioning block is fixedly connected to the scanning box, the two ends of the positioning shaft are respectively fixedly connected to the two connecting rods, and the bottom ends of the two connecting rods are respectively rotatably connected to one side of the beam baffle.

[0008] Preferably, the feedback assembly comprises a sensor box and an angle sensor installed inside the sensor box, and the angle sensor passes through the sensor box and is fixedly connected to the positioning shaft.

[0009] Preferably, the angle sensor passes through the sensor box through a wire, and a stainless steel bellows is arranged outside the portion where the wire passes through the sensor box.

[0010] Preferably, a plurality of fixing rods are installed between the two connecting rods.

[0011] Preferably, the side connection assembly includes a plurality of support rods and a swing rod rotatably connected to the support rods, the support rods are fixedly connected to the scanning box, and the swing rod is connected to the side end of the beam baffle away from the connecting rod.

[0012] Preferably, one end of the swing arm has a fixing portion, which is composed of two separate parts, and the two parts are locked and connected by a number of bolts that are passed through, a fixing hole is formed between the two parts, and an inner straight knurling is provided on the inner wall of the fixing hole. The positioning shaft is passed through the fixing hole, and the outer wall of the positioning shaft located in the fixing hole has outer straight knurling, and the inner straight knurling is meshed with the outer straight knurling.

[0013] Preferably, the end of the connecting rod has a snap-in hole, the snap-in hole is a waist hole, the inner wall of the snap-in hole has an aligned plane portion, and both ends of the positioning shaft have a milled portion respectively, and the milled portion is inserted into the snap-in hole.

[0014] Compared with the prior art, the advantages of the beam baffle opening and closing device for an accelerator disclosed by the utility model are: the transmission component of the beam baffle opening and closing device for an accelerator is more firmly connected, avoiding the risk of desoldering and preventing the failure of the driving beam baffle; the beam baffle opening and closing device for an accelerator is provided with a feedback component, which can effectively determine whether the beam plate is moved into place, and effectively protect the product and equipment; the beam baffle opening and closing device for an accelerator is easy to disassemble and assemble, and can facilitate maintenance and replacement of components. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] like Figure 1 The figure shows a front view of an accelerator beam baffle opening and closing device combined with a scanning box according to the utility model.

[0017] like Figure 2 The figure shows a side view of an accelerator beam baffle opening and closing device combined with a scanning box according to the utility model.

[0018] like Figure 3 The figure shows a partial structural front view of a transmission assembly of a beam baffle opening and closing device for an accelerator according to the utility model.

[0019] like Figure 4 The figure shows a partial structural side view of a transmission assembly of a beam baffle opening and closing device for an accelerator according to the utility model.

[0020] like Figure 5 The figure shows a front view of a swing arm and a positioning shaft of a beam baffle opening and closing device for an accelerator according to the utility model.

[0021] like Figure 6 The figure shows a side view of a swing arm and a positioning shaft of a beam baffle opening and closing device for an accelerator according to the utility model.

[0022] like Figure 7 The figure shows a front view of a positioning shaft and a connecting rod of a beam baffle opening and closing device for an accelerator according to the utility model.

[0023] like Figure 8 The figure shows a side view of a positioning shaft and a connecting rod of a beam baffle opening and closing device for an accelerator according to the utility model. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1 and Figure 2 As shown, the present application discloses an accelerator beam baffle opening and closing device which is combined with a scanning box 1 and is connected to a beam baffle 4 by transmission. The accelerator beam baffle opening and closing device comprises a cylinder drive assembly 2, a transmission assembly 3, a set of side connection assemblies 5 and a feedback assembly 6. The cylinder drive assembly 2 is combined with the scanning box 1, the transmission assembly 3 is combined with the scanning box 1, and the transmission assembly 3 is connected to the cylinder drive assembly 2 by transmission. The beam baffle 4 is connected to the transmission assembly 3 by transmission, and both ends of the beam baffle 4 are rotatably connected to the scanning box 1 through the side connection assembly 5, respectively. The feedback assembly 6 is combined with the transmission assembly 3, and the feedback assembly 6 and the cylinder drive assembly 2 are both electrically connected to the control device. The feedback assembly 6 monitors the state of the transmission assembly 3, and the controller determines whether the beam baffle 4 moves to the preset position through the data monitored by the feedback assembly 6, and controls and adjusts the working state of the cylinder drive assembly 2. If necessary, the accelerator is controlled to stop beam emission to prevent damage to the product or equipment, and effectively prevent product failure or equipment damage.

[0026] Specifically, the cylinder driving assembly 2 includes a cylinder mounting box 20 and a cylinder 21 mounted inside the cylinder mounting box 20 , an output shaft of the cylinder 21 passes through the bottom of the cylinder mounting box 20 , and the cylinder mounting box 20 is fixedly connected to the scanning box 1 .

[0027] The transmission assembly 3 includes a cylinder joint 31, a swing arm 32, a positioning shaft 301, a group of positioning blocks 30 and a group of connecting rods 33. The cylinder joint 31 is fixedly connected to the output shaft of the cylinder 21. One end of the swing arm 32 is transmission-connected to the cylinder joint 31, and the other end is fixedly connected to the positioning shaft 301. The middle of the positioning shaft 301 is connected to the swing arm 32. The two ends of the positioning shaft 301 are rotatably inserted into the two positioning blocks 30. The positioning block 30 is fixedly connected to the scanning box 1. The two ends of the positioning shaft 301 are fixedly connected to the two connecting rods 33. The bottom ends of the two connecting rods 33 are rotatably connected to one side of the beam baffle 4. Among them, a plurality of fixing rods 331 are installed between the two connecting rods 33 for reinforcement.

[0028] The side connection assembly 5 includes a plurality of support rods 51 and a swing rod 52 rotatably connected to the support rods 51 . The support rods 51 are fixedly connected to the scanning box 1 , and the swing rod 52 is connected to the side end of the beam baffle 4 away from the connecting rod.

[0029] The feedback assembly 6 includes a sensor box 60 and an angle sensor 61 installed inside the sensor box 60. The angle sensor 61 passes through the sensor box 60 and is fixedly connected to the positioning shaft 301 to monitor the rotation angle of the positioning shaft 301, thereby determining whether the beam baffle 4 is rotated in place. The angle sensor 61 passes through the sensor box 60 through a wire, and a stainless steel bellows 62 is provided outside the portion where the wire passes through the sensor box 60 to protect the wire.

[0030] See also Figure 5 and Figure 6 One end of the swing arm 32 has a fixing portion 321, which is composed of two separate parts, and the two parts are locked and connected by a plurality of bolts 322. A fixing hole 320 is formed between the two parts, and an inner straight knurling 3201 is provided on the inner wall of the fixing hole 320. The positioning shaft 301 is passed through the fixing hole 320, and the outer wall of the positioning shaft 301 located in the inner part of the fixing hole 320 has an outer straight knurling 3011, and the inner straight knurling 3201 is meshed with the outer straight knurling 3011. By tightening the bolts 322, the locking and fixing connection between the swing arm 32 and the positioning shaft 301 can be achieved, replacing the existing welding connection method, without causing desoldering, and facilitating subsequent disassembly and replacement.

[0031] See also Figure 7 and Figure 8 The end of the connecting rod 33 has a snap-in hole 331, the snap-in hole 331 is a waist hole, and the inner wall has an aligned flat portion 3311. The two ends of the positioning shaft 301 respectively have a milling flat portion 3012, which is inserted into the snap-in hole 331 to achieve a fixed connection between the connecting rod 33 and the positioning shaft 301, replacing the existing welding method, without causing desoldering, and facilitating subsequent disassembly and replacement.

[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A beam baffle opening and closing device for an accelerator, installed in combination with a scanning box and connected to the beam baffle in a transmission manner, characterized in that: The beam baffle opening and closing device for the accelerator comprises a cylinder driving assembly, a transmission assembly, a group of side connection assemblies and a feedback assembly. The cylinder driving assembly is installed in combination with the scanning box, the transmission assembly is installed in combination with the scanning box, and the transmission assembly is transmission-connected to the cylinder driving assembly, the beam baffle is transmission-connected to the transmission assembly, and both ends of the beam baffle are rotatably connected to the scanning box via the side connection assemblies, the feedback assembly is installed in combination with the transmission assembly, and the feedback assembly and the cylinder driving assembly are both electrically connected to a control device.

2. The accelerator beam baffle opening and closing device according to claim 1, characterized in that: The cylinder driving assembly comprises a cylinder mounting box and a cylinder mounted inside the cylinder mounting box, the output shaft of the cylinder passes through the bottom of the cylinder mounting box, and the cylinder mounting box is fixedly connected to the scanning box.

3. The accelerator beam baffle opening and closing device according to claim 2, characterized in that: The transmission assembly includes a cylinder joint, a swing arm, a positioning shaft, a group of positioning blocks and a group of connecting rods. The cylinder joint is fixedly connected to the output shaft of the cylinder, one end of the swing arm is transmission-connected to the cylinder joint, and the other end is fixedly connected to the positioning shaft, the middle part of the positioning shaft is connected to the swing arm, the two ends of the positioning shaft are respectively rotatably inserted into the two positioning blocks, the positioning block is fixedly connected to the scanning box, the two ends of the positioning shaft are respectively fixedly connected to the two connecting rods, and the bottom ends of the two connecting rods are respectively rotatably connected to one side of the beam baffle.

4. The accelerator beam baffle opening and closing device according to claim 3, characterized in that: The feedback assembly includes a sensor box and an angle sensor installed inside the sensor box. The angle sensor passes through the sensor box and is fixedly connected to the positioning shaft.

5. The accelerator beam baffle opening and closing device according to claim 4, characterized in that: The angle sensor passes through the sensor box through a wire, and a stainless steel bellows is arranged outside the portion where the wire passes through the sensor box.

6. The accelerator beam baffle opening and closing device according to claim 3, characterized in that: A plurality of fixing rods are installed between the two connecting rods.

7. The accelerator beam baffle opening and closing device according to claim 3, characterized in that: The side connection assembly includes a plurality of support rods and a swing rod rotatably connected to the support rods, the support rods are fixedly connected to the scanning box, and the swing rod is connected to the side end of the beam baffle away from the connecting rod.

8. The accelerator beam baffle opening and closing device according to claim 3, characterized in that: One end of the swing arm has a fixing portion, which consists of two separate parts, and the two parts are locked and connected by a plurality of bolts. A fixing hole is formed between the two parts, and an inner straight knurling is arranged on the inner wall of the fixing hole. The positioning shaft is passed through the fixing hole, and the outer wall of the positioning shaft located in the fixing hole has outer straight knurling, and the inner straight knurling is meshed with the outer straight knurling.

9. The accelerator beam baffle opening and closing device according to claim 3, characterized in that: The end of the connecting rod is provided with a clamping hole, the clamping hole is a waist hole, the inner wall of the clamping hole is provided with an aligned plane portion, and both ends of the positioning shaft are provided with a milling flat portion respectively, and the milling flat portion is inserted into the clamping hole.

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