Long-distance automatic unlocking device for rotary locking mechanism in high-radioactivity environment

Abstract

The invention relates to a long-distance automatic unlocking device for a rotation locking mechanism in a high-radioactivity environment, and the device comprises a power assembly which comprises an irradiation-resistant motor and a planetary gear speed reduction mechanism connected with an output shaft of the motor, and is used for providing rotation power and adjusting the output torque; the execution assembly comprises a wrench sleeve connected with the output shaft of the planetary gear and a hexagon wrench arranged in the wrench sleeve, the hexagon wrench is used for directly driving the rotary locking mechanism, and a spring for providing buffering for the hexagon wrench is arranged in the wrench sleeve; the supporting assembly comprises an upper outer cover and a lower outer cover which are used for containing and fixing the power assembly, and a base which is arranged at the bottom of the device and provided with a guide hole, and the supporting assembly is used for positioning the whole device and installing the whole device above the rotary locking mechanism. Compared with the prior art, the method has the advantages that the operation safety is improved, the personnel risk is reduced, the environmental adaptability and the operation reliability are realized, the integration and the usability are high, and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nuclear industry, and in particular to a remote automatic unlocking device for a rotating locking mechanism in a high-radiation environment. BACKGROUND

[0002] During the operation of a nuclear facility, a high-radiation environment is generated. In order to facilitate remote maintenance and replacement of spare parts, the equipment in the high-radiation environment is generally designed in a modular manner. In order to quickly disassemble and assemble different modules, rotating mechanisms such as bolts and rods are often used to lock different modules. Therefore, when the equipment inside the high-radiation environment needs to be maintained or spare parts need to be replaced, the rotating locking mechanism of the equipment needs to be opened and locked. Since the operator cannot enter the high-radiation field, the opening and locking operation of the rotating locking mechanism of the equipment in the high-radiation environment is mainly performed by the operator using a mechanical hand to remotely operate. However, this method is slow and inefficient, and highly dependent on the operator's personal skills. Therefore, a remote automatic unlocking device for a rotating locking mechanism in a high-radiation environment is needed to quickly and conveniently open and lock the rotating locking mechanism, improve work efficiency, and reduce the radiation risk of the operator.

[0003] CN202011640233.X discloses a force unloading reverse type electric torque wrench, which comprises a casing, a motor output assembly, a reverse force arm, a tail planetary gear set, an unloading assembly and a head planetary gear set arranged in the casing, the casing being used as a common gear ring of the planetary gear sets and being engaged with all the planetary gears, a wrench main body being axially extended at the output end of the head planetary gear set, the unloading assembly comprising an elastic connection disengaging block and an unloading seat, when the wrench main body is stuck during rotation: the motor output assembly is overloaded and powered off, the disengaging block is disconnected from the unloading seat, the sun gear of the tail planetary gear set is driven to rotate by the motor output assembly for an angle, and the casing as the gear ring of the tail planetary gear set is driven to reverse, and the casing drives the wrench main body to rotate in the opposite direction of normal working rotation for an angle. However, it is not suitable for a high-radiation environment, and the operation mode relies on manual near-field operation. SUMMARY

[0004] The purpose of the present application is to overcome the shortcomings of the prior art and provide a remote automatic unlocking device for a rotating locking mechanism in a high-radiation environment, which improves operation safety, reduces personnel risk, has environmental adaptability and operation reliability, and is highly integrated and easy to use.

[0005] The purpose of the present application can be achieved by the following technical solutions: The present application provides a remote automatic unlocking device for a rotating locking mechanism in a high-radiation environment, comprising: The power assembly comprises a radiation-resistant motor and a planetary gear reduction mechanism connected with the motor output shaft, which is used to provide rotary power and adjust the output torque. The execution assembly comprises a wrench cover connected with the planetary gear output shaft and a hexagonal wrench arranged inside the wrench cover, which is used to directly drive the rotary locking mechanism. The support assembly comprises an upper cover and a lower cover used to accommodate and fix the power assembly, and a base provided at the bottom of the device and provided with a guide hole, which is used to position and install the entire device above the rotary locking mechanism.

[0006] Further, the radiation-resistant motor is connected with the planetary gear mechanism input shaft through a first pin shaft.

[0007] Further, the planetary gear output shaft is connected with the wrench cover through a second pin shaft.

[0008] Further, the planetary gear reduction mechanism comprises a sun gear, planetary gears meshing with the sun gear and rotating around the sun gear, a fixed gear ring and a planetary gear carrier used to support the planetary gears and output power.

[0009] Further, the hexagonal wrench is installed inside the wrench cover through a third pin shaft.

[0010] Further, the upper cover and the lower cover are connected through bolts, and the lower cover and the base are connected through bolts.

[0011] Further, the support assembly further comprises a hanger shaft and a hanger arranged at the top, which is used to carry the automatic unlocking device through external hoisting tools.

[0012] Further, the support assembly further comprises a top cover, which is provided with a hole for the cable of the automatic unlocking device to pass through.

[0013] Further, the power assembly is fixed inside the upper cover through a motor support.

[0014] Further, the support assembly is provided with a deep groove ball bearing, which is used to support the planetary gear output shaft.

[0015] Compared with the prior art, the present application has the following advantages: (1) Improve the safety of operation and reduce the risk of personnel. Through the use of automation technology, remote operation is achieved, so that the operator does not need to enter the high-radiation environment, avoiding the radiation risk brought by close operation. Compared with the traditional method of relying on manual control of the manipulator by the operator, the motor-driven device realizes fast and automatic "one-key" operation. This shortens the operation time, improves the efficiency of equipment maintenance and spare parts replacement, and ensures the stability and reliability of the operation results.

[0016] (2) Environmental adaptability and operation reliability. The power device uses a radiation-resistant motor, ensuring the long-term stable operation of the power source in a strong radiation environment, solving the key problem that ordinary motors are easily damaged by radiation and fail. The planetary gear reduction mechanism effectively reduces the speed and amplifies the torque, providing sufficient and controllable driving force for the rotary locking mechanism (such as bolts that may rust), ensuring the success rate of the unlocking / locking action.

[0017] (3) High integration and ease of use. Modular layered design: the structure of the upper power, middle execution, and lower support base is clear, with high integration, making it easy to manufacture, assemble, and maintain. The bottom base is provided with a guide hole, which cooperates with the lifting structure (hanger shaft and hanger), allowing the device to be quickly and accurately aligned and installed with the rotary locking mechanism to be operated by a crane or manipulator, simplifying the pre-preparation process. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Figure 1 is a structural schematic diagram of a remote automatic unlocking device for a rotary locking mechanism in a high-radiation environment; Figure 2 Figure 2 is a structural schematic diagram of a planetary gear reduction structure.

[0019] Figure 1 is a structural schematic diagram of a remote automatic unlocking device for a rotary locking mechanism in a high-radiation environment; DETAILED DESCRIPTION

[0020] The present application will be described in detail below with reference to the accompanying drawings and specific embodiments. In this technical solution, if the component model, material name, connection structure, control method, algorithm, and other features are not explicitly stated, they are considered as common technical features disclosed in the prior art.

[0021] Example 1 The embodiment provides a remote automatic unlocking device for a rotating locking mechanism in a high-radiation environment, which comprises the following components: Figure 1 、 2 as shown in the figure, and comprises the following components: a power assembly, which comprises a radiation-resistant motor 4 and a planetary gear reduction mechanism 9 connected with a motor output shaft 6, and is used for providing rotating power and adjusting output torque; an execution assembly, which comprises a wrench cover 14 connected with a planetary gear output shaft 12, and a hexagonal wrench 17 arranged in the wrench cover 14, the hexagonal wrench 17 is used for directly driving a rotating locking mechanism 20, and the wrench cover 14 is internally provided with a spring 15 for providing buffering for the hexagonal wrench 17; a support assembly, which comprises an upper cover 10 and a lower cover 18 for accommodating and fixing the power assembly, and a base 19 arranged at the bottom of the device and provided with a guide hole, and is used for positioning and mounting the whole device above the rotating locking mechanism 20.

[0022] Embodiment 2 The embodiment provides a remote automatic unlocking device for a rotating locking mechanism in a high-radiation environment, which comprises the following components: Figure 1 、 2 as shown in the figure, and comprises the following components: a power assembly, which comprises a radiation-resistant motor 4 and a planetary gear reduction mechanism 9 connected with a motor output shaft 6, and is used for providing rotating power and adjusting output torque; an execution assembly, which comprises a wrench cover 14 connected with a planetary gear output shaft 12, and a hexagonal wrench 17 arranged in the wrench cover 14, the hexagonal wrench 17 is used for directly driving a rotating locking mechanism 20, and the wrench cover 14 is internally provided with a spring 15 for providing buffering for the hexagonal wrench 17; a support assembly, which comprises an upper cover 10 and a lower cover 18 for accommodating and fixing the power assembly, and a base 19 arranged at the bottom of the device and provided with a guide hole, and is used for positioning and mounting the whole device above the rotating locking mechanism 20.

[0023] In the specific embodiment, the radiation-resistant motor 4 is connected with a planetary gear mechanism input shaft 8 through a first pin shaft 7.

[0024] In the specific embodiment, the planetary gear output shaft 12 is connected with the wrench cover 14 through a second pin shaft 13.

[0025] In the specific embodiment, the planetary gear reduction mechanism 9 comprises a sun gear 9-1, a planetary gear 9-2 meshing with the sun gear 9-1 and rotating around the sun gear 9-1, a fixed ring gear 9-3 and a planetary gear carrier 9-4 for supporting the planetary gear 9-2 and outputting power.

[0026] In the specific embodiment, the hexagonal wrench 17 is installed inside the wrench cover 14 by the third pin shaft 16.

[0027] In the specific embodiment, the upper cover 10 and the lower cover 18 are connected by bolts, and the lower cover 18 and the base 19 are connected by bolts.

[0028] In the specific embodiment, the support assembly further comprises a hanger shaft 1 and a hanger 2 arranged on the top, for carrying the automatic unlocking device by external hoisting tools.

[0029] In the specific embodiment, the support assembly further comprises a top cover 3, and the top cover 3 is provided with a hole for the cable of the automatic unlocking device.

[0030] In the specific embodiment, the power assembly is fixed inside the upper cover 10 by the motor bracket 5.

[0031] In the specific embodiment, the support assembly is provided with a deep groove ball bearing 11 for supporting the planetary gear output shaft 12.

[0032] The components not described in detail in the embodiment are existing components that can be purchased in the public channel.

[0033] The above description of the embodiments is to facilitate the understanding and use of the invention by ordinary skilled in the art. Those skilled in the art can easily make various modifications to these embodiments, and apply the general principles described herein to other embodiments without creative labor. Therefore, the present application is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art according to the disclosure of the present application without departing from the scope of the present application should be within the scope of protection of the present application.

Claims

1. A remote automatic unlocking device for a rotary locking mechanism in a high radiation environment, characterized in that, The application relates to an automatic unlocking device for a rotating locking mechanism. The power assembly comprises a radiation-resistant motor (4) and a planetary gear deceleration mechanism (9) connected with a motor output shaft (6) for providing rotating power and adjusting output torque. The execution assembly comprises a wrench cover (14) connected with the planetary gear output shaft (12) and a hexagonal wrench (17) arranged in the wrench cover (14) for directly driving a rotating locking mechanism (20), wherein the wrench cover (14) is provided with a spring (15) for buffering the hexagonal wrench (17). The support assembly comprises an upper cover (10) and a lower cover (18) for accommodating and fixing the power assembly, and a base (19) provided at the bottom of the device and provided with a guide hole, and the support assembly is used for positioning and mounting the whole device above the rotating locking mechanism (20).

2. A remote automatic unlocking device for a rotary locking mechanism in a high radiation environment according to claim 1, characterized in that, The radiation-resistant motor (4) is connected with the planetary gear mechanism input shaft (8) through a first pin shaft (7).

3. A remote automatic unlocking device for a rotary locking mechanism in a high radiation environment according to claim 1, characterized in that, The planetary gear output shaft (12) is connected with the wrench cover (14) through a second pin shaft (13).

4. The remote automatic unlocking device for the rotating locking mechanism in a high radiation environment according to claim 1, characterized in that, The planetary gear deceleration mechanism (9) comprises a sun gear (9-1), a planetary gear (9-2) engaged with the sun gear (9-1) and rotating around the sun gear (9-1), a fixed gear ring (9-3) and a planetary gear carrier (9-4) for supporting the planetary gear (9-2) and outputting power.

5. The remote automatic unlocking device for the rotating locking mechanism in a high radiation environment according to claim 1, characterized in that, The hexagonal wrench (17) is installed in the wrench cover (14) through a third pin shaft (16).

6. The remote automatic unlocking device for the rotating locking mechanism in a high radiation environment according to claim 1, characterized in that, The upper cover (10) and the lower cover (18) are connected through bolts, and the lower cover (18) and the base (19) are connected through bolts.

7. The remote automatic unlocking device for the rotating locking mechanism in a high radiation environment according to claim 1, characterized in that, The support assembly further comprises a hanger shaft (1) and a hanger (2) arranged at the top and used for carrying the automatic unlocking device through external hoisting tools.

8. The remote automatic unlocking device for the rotating locking mechanism in a high radiation environment according to claim 1, characterized in that, The support assembly further comprises a top cover (3) provided with a hole for the cable of the automatic unlocking device.

9. The remote automatic unlocking device for the rotating locking mechanism in a high radiation environment according to claim 1, characterized in that, The power assembly is fixed in the upper cover (10) through a motor support (5).

10. The remote automatic unlocking device for a rotary locking mechanism in a high radiation environment according to claim 1, wherein The support assembly is provided with a deep groove ball bearing (11) for supporting the planetary gear output shaft (12).

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