Nuclear power plant thimble synchronous belt jack-in-jack-out device

Abstract

The utility model discloses a nuclear power plant finger sleeve pipe synchronous belt type pull -push device, it includes actuating mechanism, drive mechanism and clamping mechanism, actuating mechanism includes casing, transmission assembly, guide assembly and execution component, transmission assembly includes first synchronous wheel, second synchronous wheel, third synchronous wheel and synchronous belt, guide assembly includes guide rail and slider, execution component is connected with slider, and execution component is used for with nuclear power plant finger sleeve pipe's front end head opposite fixed, drive mechanism includes drive motor, clamping mechanism is used for clamping nuclear power plant finger sleeve pipe's sealing assembly. Application this device, compared with manual operation, can stably carry out the plug -in operation of nuclear power plant finger sleeve pipe, can reduce operating personnel, reduce operation cost, effectively shorten operation time, can effectively reduce the detection time of RIC plant related system during the overhaul, reduce the power production interruption time, effectively increase the power generation time length and electric power output of power plant, have the positive driving role to the productivity of power plant.

Description

Technical Field

[0001] This utility model relates to the field of nuclear power technology, and in particular to a synchronous belt-type insertion and removal device for finger sleeves in nuclear power plants. Background Technology

[0002] During the maintenance of nuclear power equipment, it is necessary to perform extraction and insertion operations on RIC finger sleeves in the R141 / R181 building (hereinafter referred to as the RIC building). As shown in Figure 1, the R141 building layout has a large number of equipment and complex pipelines, with limited usable space, making it difficult to place large equipment. Although there are many workers, the limited space and inconvenient movement of personnel result in a significant amount of time spent on finger sleeve extraction and insertion. In the past, when manually performing finger sleeve extraction and insertion operations in nuclear power plants, the intensity of the work and the resulting fatigue made it difficult to ensure the consistency and stability of the operation for each finger sleeve. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a synchronous belt-type insertion and removal device for finger sleeves in nuclear power plants, so as to solve the technical problem of long insertion and removal time of finger sleeves caused by manual operation in related technologies.

[0004] The technical solution adopted by this utility model to solve its technical problem is: to construct a synchronous belt-type insertion and withdrawal device for nuclear power plant finger sleeves, including an actuator, a drive mechanism and a clamping mechanism. The actuator includes a housing, a transmission assembly, a guide assembly, and an execution assembly. The upper surface of the housing has a limiting groove extending along the length of the housing. The transmission assembly is located inside the housing and includes a first synchronous pulley, a second synchronous pulley, a third synchronous pulley, and a synchronous belt. The second and third synchronous pulleys are respectively located near both ends of the housing, and the first synchronous pulley is located in the middle of the housing. The synchronous belt is wound around the first, second, and third synchronous pulleys. The guide assembly is located inside the housing and includes a guide rail and a slider. The guide rail extends along the length of the housing, and the slider is movably mounted on the guide rail. The execution assembly is connected to the slider, and the execution assembly is relatively fixed to the upper part of the synchronous belt. The execution assembly is used to be relatively fixed to the front end of the nuclear power plant finger sleeve. The drive mechanism is connected to one side of the housing, and the drive mechanism includes a drive motor, which is connected to the first synchronous pulley; The clamping mechanism is connected to one end of the housing and is used to clamp the sealing assembly of the nuclear power plant finger sleeve.

[0005] In some embodiments, the axes of the second synchronous pulley and the third synchronous pulley are located in the same plane; the guide rail is located between the second synchronous pulley and the third synchronous pulley; The axis of the first synchronous pulley is located below the axis of the second synchronous pulley; The transmission assembly also includes two guide wheels, which are respectively located on both sides of the first synchronous pulley in the horizontal direction, and the lower surface of the lower part of the synchronous belt abuts against the outer peripheral surface of the guide wheels.

[0006] In some embodiments, the execution component includes a base, a base, a support, a first fixing member, and a second fixing member; The base is connected to the upper surface of the slider. The base is provided with a toothed row that meshes with the teeth of the timing belt. The toothed row extends along the length of the base. The lower surface of the base is provided with a groove. The groove is opposite to the toothed row. The base and the base are detachably connected to each other to be fixed relative to the timing belt. The support base is fixedly connected to the base, and the support base protrudes from the housing. The first fixing member is fixedly connected to the upper end of the support base, and the second fixing member cooperates with the first fixing member to be fixed relative to the front end of the nuclear power plant finger sleeve.

[0007] In some embodiments, the upper surface of the first fixing member is provided with a first arc-shaped groove, and the lower surface of the second fixing member is provided with a second arc-shaped groove; The first fixing member has a first through groove at its first end, and the second fixing member has a first connecting block at its first end. One end of the first connecting block is installed in the first through groove via a first connecting shaft. The second end of the first fixing member is provided with a second through groove, and the second end of the second fixing member is provided with a third through groove, with the second through groove and the third through groove being arranged opposite to each other; The execution component further includes a second connecting block, a first threaded component and a first threaded locking component. The second connecting block is installed in the second through groove via a second connecting shaft. The first end of the first threaded component is connected to the second connecting block, and the first threaded locking component is connected to the second end of the first threaded component. The execution component has a fixed mode and an unlocking mode. When the execution component is in the fixed mode, the first fixing member and the second fixing member abut against each other, the first threaded member is located in the third through groove, the first threaded locking member is located above the third through groove and the lower end face of the first threaded locking member abuts against the upper surface of the second end of the second fixing member, and the execution component locks the front end of the nuclear power plant finger sleeve. When the execution component is in the unlocking mode, the first threaded locking member releases the second fixing member, the first threaded member rotates out of the third through groove, the second fixing member and the first fixing member can rotate relative to each other, and the execution component releases the front end of the nuclear power plant finger sleeve.

[0008] In some embodiments, the clamping mechanism includes a support plate, a first clamping body, and a second clamping body; The support plate is detachably connected to the outer side of one end of the housing. The first clamping body is connected to the upper end of the support plate. The upper surface of the first clamping body is provided with a first clamping groove, and the lower surface of the second clamping body is provided with a second clamping groove. The first clamping body has a fourth through groove at its first end, and the second clamping body has a third connecting block at its first end. One end of the third connecting block is installed in the fourth through groove via a third connecting shaft. The second end of the first clamping body is provided with a fifth through groove, and the second end of the second clamping body is provided with a sixth through groove, with the fifth through groove and the sixth through groove being arranged opposite to each other; The clamping mechanism further includes a fourth connecting block, a second threaded component, and a second threaded locking component. The fourth connecting block is installed in the fifth through groove via a fourth connecting shaft. The first end of the second threaded component is connected to the fourth connecting block, and the second threaded locking component is connected to the second end of the second threaded component. The clamping mechanism has a clamping mode and a releasing mode. In the clamping mode, the first clamping body and the second clamping body abut against each other, the second threaded member is located in the sixth through groove, the second threaded locking member is located above the sixth through groove and the lower end face of the second threaded locking member abuts against the upper surface of the second end of the second clamping body, and the clamping mechanism clamps the sealing assembly of the nuclear power plant finger sleeve. In the releasing mode, the second threaded locking member releases the second clamping body, the second threaded member rotates out of the sixth through groove, the second clamping body and the first clamping body can rotate relative to each other, and the clamping mechanism releases the sealing assembly of the nuclear power plant finger sleeve.

[0009] In some embodiments, the first clamping body has a clearance groove on the side opposite to the execution component.

[0010] In some embodiments, the second clamping body is provided with clearance holes.

[0011] In some embodiments, the actuator further includes two detection components, which are respectively disposed at both ends of the guide rail; Each of the detection components includes a mounting bracket and a limit sensor disposed on the mounting bracket, the limit sensor being disposed toward the side of the execution component.

[0012] In some embodiments, the drive mechanism further includes a mounting housing connected to the housing; The drive motor is installed inside the mounting housing, and the portion of the mounting housing located on both sides of the drive motor is provided with heat dissipation holes. The drive mechanism also includes a fan, which is located inside the mounting housing and is positioned opposite to the heat dissipation holes.

[0013] In some embodiments, the upper part of the mounting housing is further provided with a display screen; The upper part of the mounting housing is also provided with a handle.

[0014] The implementation of this utility model has the following beneficial effects: Compared with manual operation, the synchronous belt insertion and removal device for nuclear power plant finger sleeves can stably carry out the insertion and removal of nuclear power plant finger sleeves, which can reduce the number of operators, reduce operating costs, and effectively shorten the operation time. It can also effectively reduce the testing time of related systems in the RIC plant during major overhauls and reduce the power production interruption time caused by equipment shutdown for maintenance, thereby effectively increasing the power generation time and power output of the power plant and having a positive effect on the power plant's productivity. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings: Figure 1 This is a structural diagram of the RIC plant; Figure 2 This is one of the structural schematic diagrams of the synchronous belt insertion and withdrawal device for nuclear power plant finger sleeves in some embodiments of this utility model; Figure 3 This is the second schematic diagram of the synchronous belt insertion and withdrawal device for nuclear power plant finger sleeves in some embodiments of this utility model; Figure 4 This is the third of the structural schematic diagrams of the synchronous belt insertion and withdrawal device for nuclear power plant finger sleeves in some embodiments of this utility model; Figure 5 This is one of the partial structural schematic diagrams of the synchronous belt insertion and withdrawal device for nuclear power plant finger sleeves in some embodiments of this utility model; Figure 6 This is the second partial structural schematic diagram of the synchronous belt insertion and withdrawal device for nuclear power plant finger sleeves in some embodiments of this utility model; Figure 7 This is the third partial structural schematic diagram of the synchronous belt insertion and withdrawal device for nuclear power plant finger sleeves in some embodiments of this utility model; Figure 8 This is an exploded view of the execution components in some embodiments of the present invention; Figure 9 This is one of the structural schematic diagrams of the clamping mechanism in some embodiments of this utility model; Figure 10 This is the second schematic diagram of the clamping mechanism in some embodiments of this utility model. Detailed Implementation

[0016] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0017] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0018] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0019] See Figures 2 to 10 This utility model discloses a synchronous belt-type insertion and removal device for nuclear power plant finger sleeves, which can be used for, but is not limited to, the insertion and removal operation of nuclear power plant RIC finger sleeves.

[0020] See Figures 2 to 10 The nuclear power plant finger sleeve synchronous belt insertion and removal device includes an actuator 10, a drive mechanism 20, and a clamping mechanism 30.

[0021] like Figure 5 As shown, the actuator 10 includes a housing 11, a transmission assembly 12, a guide assembly 13, and an execution assembly 14. The housing 11 is generally a rectangular columnar structure. A limiting groove 111 is provided on the upper surface of the housing 11. The limiting groove 111 is generally a rectangular groove structure and extends along the length direction of the housing 11.

[0022] The transmission assembly 12 is disposed inside the housing 11. The transmission assembly 12 includes a first synchronous pulley 121, a second synchronous pulley 122, a third synchronous pulley 123, and a synchronous belt 124. The second synchronous pulley 122 and the third synchronous pulley 123 are respectively disposed near the two ends of the housing 11. The first synchronous pulley 121 is disposed in the middle of the housing 11. Here, the two ends of the housing 11 refer to the two ends of the housing 11 in the length direction, and the middle position of the housing 11 refers to the position between the two ends of the housing 11, and is not limited to the exact center position in the length direction of the housing 11.

[0023] The synchronous belt 124 is wound around the first synchronous pulley 121, the second synchronous pulley 122 and the third synchronous pulley 123; the length of the synchronous belt 124 can be 1195mm, and its running length can be approximately 420mm.

[0024] The guide assembly 13 is disposed inside the housing 11. The guide assembly 13 includes a guide rail 131 and a slider 132. The guide rail 131 may be fixedly connected to the inner side wall of the housing 11 and extends along the length of the housing 11. The slider 132 is movably mounted on the guide rail 131. The actuation assembly 14 is connected to the slider 132 and is fixed relative to the upper part of the timing belt 124. The actuation assembly 14 is used to be fixed relative to the front end of the nuclear power plant finger sleeve.

[0025] The drive mechanism 20 is connected to one side of the housing 11. The drive mechanism 20 includes a drive motor 22, which is connected to the first synchronous pulley 121. The drive motor 22 drives the first synchronous pulley 121 to rotate, so that the first synchronous pulley 121 drives the synchronous belt 124 to move. The synchronous belt 124 then drives the actuator 14 to move along the guide rail 131, so as to realize the insertion and removal operation of the actuator 14 on the nuclear power plant finger sleeve.

[0026] Furthermore, the clamping mechanism 30 is connected to one end of the housing 11. The clamping mechanism 30 is used to clamp the sealing assembly of the nuclear power plant finger sleeve, ensuring that the synchronous belt insertion / removal device for the nuclear power plant finger sleeve is relatively fixed to the sealing assembly, thus preventing displacement or vibration during operation. Of course, the synchronous belt insertion / removal device for the nuclear power plant finger sleeve can also be installed on a support device for operation.

[0027] The synchronous belt insertion and removal device for nuclear power plant finger sleeves is used as follows: when it is necessary to perform insertion and removal operations on nuclear power plant finger sleeves, the clamping mechanism 30 is fixed to the sealing assembly of the nuclear power plant finger sleeve, the execution assembly 14 is fixed relative to the front end of the nuclear power plant finger sleeve, and then the execution assembly 14 is moved by the drive motor 22 to realize the insertion and removal of the nuclear power plant finger sleeve.

[0028] In the past, the insertion and removal of finger sleeves in nuclear power plant RIC (Radio Injection Chamber) buildings relied on manual labor, requiring at least four workers. This not only consumed significant human resources but also led to low efficiency due to coordination issues. However, with the introduction of the finger sleeve insertion and removal tool, only two operators are needed to complete the same task. This means that the saved human resources can be redistributed to other critical maintenance aspects or production processes within the nuclear power plant, achieving optimized resource allocation. For example, these surplus personnel can be used for control system testing and fine-tuning of power generation equipment, thereby improving the overall maintenance level and operational efficiency of the power plant and directly boosting plant productivity. Therefore, compared to manual operation, the synchronous belt insertion and removal device for finger sleeves in this nuclear power plant can reliably perform finger sleeve insertion and removal operations, reducing the number of workers and lowering operating costs.

[0029] In addition, the nuclear power plant's finger sleeve synchronous belt insertion and removal device can be used for operations in confined spaces, offering good convenience.

[0030] Furthermore, in the past, when manually inserting and removing finger sleeves in nuclear power plants, the time required for inserting and removing a single finger sleeve was long due to the intensity of the work and the resulting fatigue. It was also difficult to ensure the consistency and stability of the operation. In the past, inserting and removing a set of finger sleeves could take a day or more. However, with the application of this synchronous belt-type finger sleeve insertion and removal device, the consistency and stability of finger sleeve insertion and removal operations in nuclear power plants are better, effectively shortening the operation time. This can effectively reduce the testing time of related systems in the RIC plant during major overhauls, enabling related equipment to return to normal operation more quickly. It also reduces the power production interruption time caused by equipment shutdown for maintenance, thereby effectively increasing the power generation time and power output of the power plant and having a positive effect on the power plant's productivity.

[0031] Furthermore, the work at nuclear power plants is unique, requiring maintenance personnel to wear protective suits when overhauling finger sleeves in the RIC (Remote Integrated Circuit) building. While these suits provide protection, they limit operational flexibility and increase the risk of misoperation. The synchronous belt-type insertion and removal device for finger sleeves at this nuclear power plant effectively overcomes the operational limitations imposed by protective suits, significantly reducing the possibility of misoperation due to its ease of operation. This improvement enhances the safety level of power plant maintenance, reduces downtime, maintenance costs, and additional resource input due to safety accidents, laying a solid foundation and providing strong support for improving power plant productivity.

[0032] In addition, the nuclear power plant's finger sleeve synchronous belt insertion and removal device is relatively simple to operate, has low requirements for operators, and is highly practical.

[0033] like Figure 5 As shown, in some embodiments, the axes of the second synchronous pulley 122 and the third synchronous pulley 123 are located in the same plane; the guide rail 131 is located between the second synchronous pulley 122 and the third synchronous pulley 123. The axis of the first synchronous pulley 121 is located below the axis of the second synchronous pulley 122.

[0034] The transmission assembly 12 also includes two guide wheels 125, which are respectively located on both sides of the first synchronous pulley 121 in the horizontal direction. The lower surface of the lower part of the synchronous belt 124 abuts against the outer peripheral surface of the guide wheel 125. The guide wheel 125 can play an auxiliary guiding role.

[0035] The housing 11 may include a main body housing with a rectangular columnar structure and an arc-shaped shell (or a hemispherical shell) connected and communicating with the middle of the main body housing. The second synchronous wheel 122 and the third synchronous wheel 123 are located inside the main body housing, the first synchronous wheel 121 is located inside the arc-shaped shell, and the two guide wheels 125 may also be located inside the arc-shaped shell.

[0036] like Figure 5 and Figure 8As shown, in some embodiments, the actuator 14 may be made of 7075 aviation aluminum. The actuator 14 is mainly used to clamp and fix the front end of the nuclear power plant finger sleeve. It can protect the threads of the front end of the nuclear power plant finger sleeve and avoid damage to the threads, thus avoiding irreversible damage to the nuclear power plant finger sleeve.

[0037] The execution component 14 includes a base 141, a base 142, a support 143, a first fastener 144, and a second fastener 145.

[0038] The base 141 is connected to the upper surface of the slider 132. The base 141 is provided with a toothed row 1411 that meshes with the teeth of the timing belt 124. The toothed row 1411 extends along the length of the base 141. The lower surface of the base 142 is provided with a groove 1421, which is opposite to the toothed row 1411. The base 142 and the base 141 are detachably connected to fix relative to the timing belt 124.

[0039] The support base 143 is fixedly connected to the base 142. The support base 143 protrudes from the housing 11. The first fixing member 144 is fixedly connected to the upper end of the support base 143. The second fixing member 145 cooperates with the first fixing member 144 to be fixed relative to the front end of the nuclear power plant finger sleeve.

[0040] like Figure 8 As shown, in some embodiments, the upper surface of the first fixing member 144 is provided with a first arc-shaped groove 1441, and the lower surface of the second fixing member 145 is provided with a second arc-shaped groove 1451.

[0041] The first fixing member 144 has a first through groove 1442 at its first end, and the second fixing member 145 has a first connecting block 1452 at its first end. One end of the first connecting block 1452 is installed in the first through groove 1442 through a first connecting shaft 1453.

[0042] The second end of the first fixing member 144 is provided with a second through groove 1443, and the second end of the second fixing member 145 is provided with a third through groove 1454. The second through groove 1443 and the third through groove 1454 are arranged opposite to each other. The actuating component 14 further includes a second connecting block 146, a first threaded member 147, and a first threaded locking member 148. The second connecting block 146 is mounted in the second through groove 1443 via a second connecting shaft 149. The first end of the first threaded member 147 is connected to the second connecting block 146, and the first threaded locking member 148 is connected to the second end of the first threaded member 147. The first threaded member 147 and the second connecting block 146 may be an integral structure, and the first threaded locking member 148 may be, but is not limited to, a nut.

[0043] The actuator 14 has a fixed mode and an unlocked mode. When the actuator 14 is in the fixed mode, the first fixing member 144 abuts against the second fixing member 145, the first threaded member 147 is located in the third through groove 1454, the first threaded locking member 148 is located above the third through groove 1454 and the lower end face of the first threaded locking member 148 abuts against the upper surface of the second end of the second fixing member 145, and the actuator 14 locks the front end of the nuclear power plant finger sleeve. When the actuator 14 is in the unlocked mode, the first threaded locking member 148 releases the second fixing member 145, the first threaded member 147 rotates out of the third through groove 1454, the second fixing member 145 and the first fixing member 144 can rotate relative to each other, and the actuator 14 releases the front end of the nuclear power plant finger sleeve.

[0044] like Figure 9 and Figure 10 As shown, in some embodiments, the clamping mechanism 30 may be made of 7075 aviation aluminum. The clamping mechanism 30 may include a support plate 31, a first clamping body 32, and a second clamping body 33. The support plate 31 is generally flat, with its upper end protruding from the upper surface of the housing 11. The support plate 31 is detachably connected to the outer side of one end of the housing 11, for example, by a threaded connection. The first clamping body 32 is connected to the upper end of the support plate 31, and may be fixedly connected to the support plate 31, for example, by welding. The upper surface of the first clamping body 32 is provided with a first clamping groove 321, and the lower surface of the second clamping body 33 is provided with a second clamping groove 331. The first clamping groove 321 and the second clamping groove 331 may be arc-shaped grooves, and their shapes are adapted to the shape of the sealing assembly.

[0045] The first clamping body 32 has a fourth through groove 322 at its first end, and the second clamping body 33 has a third connecting block 332 at its first end. One end of the third connecting block 332 is installed in the fourth through groove 322 through a third connecting shaft 333.

[0046] The second end of the first clamping body 32 is provided with a fifth through groove 323, and the second end of the second clamping body 33 is provided with a sixth through groove 334. The fifth through groove 323 and the sixth through groove 334 are arranged opposite to each other. The fourth through groove 322, the fifth through groove 323 and the sixth through groove 334 can all be U-shaped groove structures.

[0047] The clamping mechanism 30 also includes a fourth connecting block 34, a second threaded component 35, and a second threaded locking component 36. The fourth connecting block 34 is mounted in the fifth through groove 323 via a fourth connecting shaft 37. The first end of the second threaded component 35 is connected to the fourth connecting block 34, and the second threaded locking component 36 is connected to the second end of the second threaded component 35. The second threaded component 35 and the fourth connecting block 34 can be an integral structure, and the second threaded locking component 36 can be, but is not limited to, a nut.

[0048] The clamping mechanism 30 has a clamping mode and a releasing mode. When the clamping mechanism 30 is in the clamping mode, the first clamping body 32 abuts against the second clamping body 33, the second threaded member 35 is located in the sixth through groove 334, the second threaded locking member 36 is located above the sixth through groove 334 and the lower end face of the second threaded locking member 36 abuts against the upper surface of the second end of the second clamping body 33, and the clamping mechanism 30 clamps the sealing assembly of the nuclear power plant finger sleeve. When the clamping mechanism 30 is in the releasing mode, the second threaded locking member 36 releases the second clamping body 33, the second threaded member 35 rotates out of the sixth through groove 334, the second clamping body 33 and the first clamping body 32 can rotate relative to each other, and the clamping mechanism 30 releases the sealing assembly of the nuclear power plant finger sleeve.

[0049] like Figure 9 and Figure 10 As shown, in some embodiments, the first clamping body 32 has a clearance groove 324 on the side opposite to the actuating component 14. In some embodiments, the second clamping body 33 has a clearance hole 335. Both the clearance groove 324 and the clearance hole 335 can be used to avoid the sealing nut of the sealing component.

[0050] like Figure 5 As shown, in some embodiments, the actuator 10 further includes two detection components 15, which are respectively disposed at both ends of the guide rail 131. The two detection components 15 are respectively close to the second synchronous pulley 122 and the third synchronous pulley 123.

[0051] Each detection component 15 includes a mounting bracket 151 and a limit sensor 152 disposed on the mounting bracket 151, the limit sensor 152 being positioned facing the actuator 14. The limit sensor 152 may be, but is not limited to, a limit switch or a microwave sensor. The detection component 15 is used for safety protection at extreme positions, ensuring the safety of the equipment during operation.

[0052] In some embodiments, the drive mechanism 20 further includes a mounting housing 21 connected to the housing 11. The mounting housing 21 may be fixedly connected to the housing 11, or it may be detachably connected to the housing 11, with the detachable connection method including threaded connection. Both the mounting housing 21 and the housing 11 may be made of 7075 aerospace aluminum.

[0053] The drive motor 22 is installed inside the mounting housing 21, and the portion of the mounting housing 21 located on both sides of the drive motor 22 is provided with heat dissipation holes 211. The drive mechanism 20 also includes a fan 23, which is located inside the mounting housing 21 and is positioned opposite to the heat dissipation holes 211.

[0054] In some embodiments, the drive motor 22 may include a frameless torque motor and a harmonic reducer connected to each other, with the harmonic reducer shaft-connected to the first synchronous pulley 121. The frameless torque motor features small size, high power density, and high speed. The harmonic reducer features small size and high output torque. The reduction ratio of the harmonic reducer is 1:50. The rated torque of the frameless torque motor is 1.23 Nm, and the rated speed is 5600 rpm. The frameless torque motor can be a TBM2G-07613D motor, and the harmonic reducer can be an FHG-20 harmonic reducer. Of course, the drive motor can also be selected and configured according to actual needs; no specific limitations are made here.

[0055] In some embodiments, the upper part of the mounting housing 21 is also provided with a display screen 24, which may be a digital display screen with a size of 59mm×46mm; the upper part of the mounting housing 21 is also provided with a handle 25, which is convenient for lifting.

[0056] like Figure 6 and Figure 7 As shown, in some embodiments, the upper part of the mounting shell 21 is also provided with a control button 26, which may include, but is not limited to, a pull-out control button, an insert control button, and a stop button.

[0057] like Figure 6 and Figure 7 As shown, in some embodiments, the drive motor 22, fan 23, display screen 24, and control button 26 can be connected to a control device, which can be a PLC industrial computer. The PLC industrial computer can be selected from the EASY series, featuring easy networking, easy expansion, and modularity. It offers high stability while meeting the requirements of ease of use and adjustment.

[0058] The mounting housing 21 may be provided with wiring holes or connectors. The control device may be made using existing technology, and no specific limitation is made here.

[0059] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A synchronous belt-type insertion and removal device for finger sleeves in nuclear power plants, characterized in that, It includes an actuator (10), a drive mechanism (20), and a clamping mechanism (30); The actuator (10) includes a housing (11), a transmission assembly (12), a guide assembly (13), and an execution assembly (14). The upper surface of the housing (11) is provided with a limiting groove (111), which extends along the length of the housing (11). The transmission assembly (12) is located inside the housing (11) and includes a first synchronous pulley (121), a second synchronous pulley (122), a third synchronous pulley (123), and a synchronous belt (124). The second synchronous pulley (122) and the third synchronous pulley (123) are respectively located near the two ends of the housing (11), and the first synchronous pulley (121) is located in the middle of the housing (11). The synchronous belt (124) is wound around the first synchronous pulley (121), the second synchronous pulley (122), and the third synchronous pulley (123); the guide assembly (13) is disposed inside the housing (11), and the guide assembly (13) includes a guide rail (131) and a slider (132). The guide rail (131) extends along the length direction of the housing (11), and the slider (132) is movably mounted on the guide rail (131); the execution assembly (14) is connected to the slider (132), and the execution assembly (14) is relatively fixed to the upper part of the synchronous belt (124). The execution assembly (14) is used to be relatively fixed to the front end of the nuclear power plant finger sleeve. The drive mechanism (20) is connected to one side of the housing (11), and the drive mechanism (20) includes a drive motor (22), which is connected to the first synchronous pulley (121); The clamping mechanism (30) is connected to one end of the housing (11), and the clamping mechanism (30) is used to clamp the sealing assembly of the nuclear power plant finger sleeve.

2. The synchronous belt insertion and withdrawal device for nuclear power plant finger sleeves according to claim 1, characterized in that, The axes of the second synchronous pulley (122) and the third synchronous pulley (123) are located in the same plane; the guide rail (131) is located between the second synchronous pulley (122) and the third synchronous pulley (123); The axis of the first synchronous pulley (121) is located below the axis of the second synchronous pulley (122); The transmission assembly (12) also includes two guide wheels (125), which are respectively located on both sides of the first synchronous pulley (121) in the horizontal direction, and the lower surface of the lower part of the synchronous belt (124) abuts against the outer peripheral surface of the guide wheels (125).

3. The synchronous belt insertion and withdrawal device for nuclear power plant finger sleeves according to claim 1, characterized in that, The execution component (14) includes a base (141), a base (142), a support (143), a first fixing member (144), and a second fixing member (145). The base (141) is connected to the upper surface of the slider (132). The base (141) is provided with a toothed row (1411) that meshes with the teeth of the synchronous belt (124). The toothed row (1411) extends along the length of the base (141). The lower surface of the base (142) is provided with a groove (1421). The groove (1421) is opposite to the toothed row (1411). The base (142) is detachably connected to the base (141) to be fixed relative to the synchronous belt (124). The support base (143) is fixedly connected to the base (142). The support base (143) protrudes from the housing (11). The first fixing member (144) is fixedly connected to the upper end of the support base (143). The second fixing member (145) cooperates with the first fixing member (144) to be fixed relative to the front end of the nuclear power plant finger sleeve.

4. The nuclear power plant finger sleeve synchronous belt insertion and withdrawal device according to claim 3, characterized in that, The upper surface of the first fixing member (144) is provided with a first arc groove (1441), and the lower surface of the second fixing member (145) is provided with a second arc groove (1451). The first fixing member (144) has a first through groove (1442) at its first end, and the second fixing member (145) has a first connecting block (1452) at its first end. One end of the first connecting block (1452) is installed in the first through groove (1442) through a first connecting shaft (1453). The second end of the first fixing member (144) is provided with a second through groove (1443), and the second end of the second fixing member (145) is provided with a third through groove (1454). The second through groove (1443) and the third through groove (1454) are arranged opposite to each other. The execution component (14) further includes a second connecting block (146), a first threaded component (147), and a first threaded locking component (148). The second connecting block (146) is installed in the second through groove (1443) via a second connecting shaft (149). The first end of the first threaded component (147) is connected to the second connecting block (146), and the first threaded locking component (148) is connected to the second end of the first threaded component (147). The execution component (14) has a fixed mode and an unlocking mode. When the execution component (14) is in the fixed mode, the first fixing member (144) abuts against the second fixing member (145), the first threaded member (147) is located in the third through groove (1454), the first threaded locking member (148) is located above the third through groove (1454), and the lower end face of the first threaded locking member (148) abuts against the upper surface of the second end of the second fixing member (145), and the execution component (14) locks the front end of the nuclear power plant finger sleeve. When the execution component (14) is in the unlocking mode, the first threaded locking member (148) releases the second fixing member (145), the first threaded member (147) rotates out of the third through groove (1454), the second fixing member (145) and the first fixing member (144) can rotate relative to each other, and the execution component (14) releases the front end of the nuclear power plant finger sleeve.

5. The synchronous belt insertion and withdrawal device for nuclear power plant finger sleeves according to claim 1, characterized in that, The clamping mechanism (30) includes a support plate (31), a first clamping body (32) and a second clamping body (33); The support plate (31) is detachably connected to the outer side of one end of the housing (11), the first clamping body (32) is connected to the upper end of the support plate (31), the upper surface of the first clamping body (32) is provided with a first clamping groove (321), and the lower surface of the second clamping body (33) is provided with a second clamping groove (331). The first clamping body (32) has a fourth through groove (322) at its first end, and the second clamping body (33) has a third connecting block (332) at its first end. One end of the third connecting block (332) is installed in the fourth through groove (322) through a third connecting shaft (333). The second end of the first clamping body (32) is provided with a fifth through groove (323), and the second end of the second clamping body (33) is provided with a sixth through groove (334). The fifth through groove (323) and the sixth through groove (334) are arranged opposite to each other. The clamping mechanism (30) further includes a fourth connecting block (34), a second threaded component (35), and a second threaded locking component (36). The fourth connecting block (34) is installed in the fifth through groove (323) through a fourth connecting shaft (37). The first end of the second threaded component (35) is connected to the fourth connecting block (34), and the second threaded locking component (36) is connected to the second end of the second threaded component (35). The clamping mechanism (30) has a clamping mode and a releasing mode. When the clamping mechanism (30) is in the clamping mode, the first clamping body (32) abuts against the second clamping body (33), the second threaded part (35) is located in the sixth through groove (334), the second threaded locking part (36) is located above the sixth through groove (334), and the lower end face of the second threaded locking part (36) abuts against the upper surface of the second end of the second clamping body (33). The clamping mechanism (30) clamps the sealing assembly of the nuclear power plant finger sleeve. When the clamping mechanism (30) is in the releasing mode, the second threaded locking part (36) releases the second clamping body (33), the second threaded part (35) rotates out of the sixth through groove (334), the second clamping body (33) and the first clamping body (32) can rotate relative to each other, and the clamping mechanism (30) releases the sealing assembly of the nuclear power plant finger sleeve.

6. The synchronous belt insertion and withdrawal device for nuclear power plant finger sleeves according to claim 5, characterized in that, The first clamping body (32) has a clearance groove (324) on the side opposite to the execution component (14).

7. The synchronous belt insertion and withdrawal device for nuclear power plant finger sleeves according to claim 5, characterized in that, The second clamping body (33) is provided with a clearance hole (335).

8. The synchronous belt insertion and withdrawal device for nuclear power plant finger sleeves according to claim 1, characterized in that, The actuator (10) further includes two detection components (15), which are respectively located at both ends of the guide rail (131); Each of the detection components (15) includes a mounting bracket (151) and a limit sensor (152) disposed on the mounting bracket (151), the limit sensor (152) being disposed toward the side of the execution component (14).

9. The synchronous belt insertion and withdrawal device for nuclear power plant finger sleeves according to claim 1, characterized in that, The drive mechanism (20) also includes a mounting housing (21) which is connected to the housing (11); The drive motor (22) is installed inside the mounting housing (21), and the portion of the mounting housing (21) located on both sides of the drive motor (22) is provided with heat dissipation holes (211). The drive mechanism (20) also includes a fan (23), which is located inside the mounting housing (21) and is positioned opposite to the heat dissipation holes (211).

10. The synchronous belt insertion and withdrawal device for nuclear power plant finger sleeves according to claim 9, characterized in that, The upper part of the mounting housing (21) is also provided with a display screen (24). The upper part of the mounting housing (21) is also provided with a handle (25).

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