Device capable of realizing inclination of driving line and adjustable inclination angle

Abstract

The utility model relates to the technical field of control rod drive wires, and provides a device capable of realizing drive wire inclination and inclination angle adjustability, which comprises a test cylinder and a supporting seat, the supporting seat is provided with a connecting groove, the middle part of the test cylinder horizontally extends outwards to be provided with a rotating shaft rotationally connected with the connecting groove, and the rotating shaft is connected with the connecting groove. A plurality of through holes are formed in the same circumferential surface of the rotating shaft in the radial direction, a key groove is formed in the supporting seat, the test barrel is connected with the through holes and the key groove in series through bolts to achieve locking of the test barrel and the supporting seat, stable supporting and flexible rotating capacity are provided, the inclination angle of the test barrel is convenient to adjust, and then different experiment requirements are met. And greater flexibility is provided for the experiment.

Description

Technical Field

[0001] This utility model relates to the field of control rod drive line technology, and more specifically, to a device that can realize the tilting of the drive line and the adjustable tilting angle. Background Technology

[0002] Control rod drive lines are crucial execution units in the nuclear reactor control and safety protection system, and their design rationality directly affects the reactor's inherent safety and operational stability. Inside the reactor, there are multiple sets of control rod drive lines, each with its drive mechanism installed within the corresponding tube seat sealing shell of the pressure vessel head. For floating nuclear reactors, severe weather such as typhoons and tsunamis, as well as external impacts, can cause the reactor and control rod drive lines to tilt or even overturn. If the drive mechanism fails in this situation, and the control rods slide in the opposite direction, not only will rapid reactor shutdown be impossible, but it could also lead to uncontrolled core reactivity, posing a significant safety hazard.

[0003] To ensure that the control rod drive line maintains normal function in actual operation, it is necessary to simulate the tilting operation of the control rod drive line under actual working conditions in an experimental environment. This can verify the impact of tilting conditions on the function and performance of the drive line, and make targeted improvements or solidify its structural design.

[0004] Traditional control rod drive line experiments primarily employed a skirted planar support structure, fixing the entire test vessel to an installation platform. This typically limited drive line operation and rod drop tests to a vertical configuration. However, with the rapid development of the global nuclear industry and the increasingly diversified applications of reactors, tilt testing has become a necessity for control rod drive line design. Existing skirted planar support structures cannot meet this requirement, especially when multiple tilt angles need to be switched within the same test. Utility Model Content

[0005] The purpose of this invention is to provide a device that can achieve tilting of the drive line and adjustable tilt angle, solving the problem that the existing support structure cannot meet the test requirements of the control rod drive line tilting.

[0006] This utility model is achieved through the following technical solution: a device that can realize the tilting of the drive line and the adjustable tilting angle, including a test cylinder and a support base. The support base is provided with a connecting groove. A rotating shaft that is rotatably connected to the connecting groove is provided in the middle of the test cylinder. Several through holes are provided radially on the same circumferential surface of the rotating shaft. A keyway is provided on the support base. The test cylinder is locked to the support base by means of a pin connecting the through holes and the keyway.

[0007] Furthermore, several rotating shafts are arranged along the circumference of the test cylinder, and the rotating shafts are arranged in pairs with the pairs of rotating shafts facing each other.

[0008] Preferably, a plurality of support seats are provided, and each support seat is connected to a rotating shaft.

[0009] Preferably, each support includes a base plate, a support block, and a cover plate. The base plates are detachably connected. The top of the support block has a U-shaped connecting groove. The cover plate is bolted to the top of the support block to limit the rotating shaft within the connecting groove.

[0010] Preferably, a reinforcing elbow plate connects the base plate and the support block.

[0011] Preferably, bolt holes are provided on the base plate.

[0012] Furthermore, the test cylinder is equipped with an upper chain hoist and a lower chain hoist for pulling the test cylinder to rotate and tilt.

[0013] This utility model has at least the following advantages and beneficial effects: by positioning the rotating shaft and the connecting groove, the test cylinder is placed on the support seat, and by connecting the hole and the keyway through the pin, the tilt angle of the test cylinder is fixed, providing stable support and flexible rotation capability, making it easy to adjust the tilt angle of the test cylinder, thereby meeting different experimental needs and providing greater flexibility for experiments. Attached Figure Description

[0014] Figure 1 A cross-sectional view of a device that enables the tilting of a drive line and the adjustment of the tilt angle, provided by this utility model.

[0015] Figure 2 This is a top view of a device that enables the tilting of a drive line and the adjustment of the tilt angle, as provided by this utility model.

[0016] Figure 3 A partial side view of a device for achieving tilting of the drive line and adjustable tilt angle provided by this utility model.

[0017] Reference numerals: 1-Test cylinder, 2-Support seat, 20-Connecting groove, 21-Keyway, 22-Base plate, 23-Support block, 24-Cover plate, 25-Reinforcing elbow plate, 3-Rotating shaft, 30-Through hole, 4-Pin, 5-Upper chain hoist, 6-Lower chain hoist. Detailed Implementation

[0018] The specific implementation method is described below with reference to the accompanying drawings.

[0019] Example

[0020] like Figure 1-3As shown in the figure, this embodiment mainly discloses a device that can realize the tilting of the drive line and the adjustable tilt angle. It has a simple and reliable structure and is easy to operate. Its main structure includes a test cylinder 1 and a support base 2. The support base 2 has a connecting groove 20. A rotating shaft 3, which is rotatably connected to the connecting groove 20, extends horizontally outward from the middle of the test cylinder 1. Several through holes 30 are radially formed on the same circumferential surface of the rotating shaft 3. A keyway 21 is provided on the support base 2. The test cylinder 1 is locked to the support base 2 by connecting the through holes 30 and the keyway 21 through a pin 4. Specifically, the test cylinder 1 achieves a rotatable connection through the cooperation of the rotating shaft 3 and the connecting groove 20. When the test cylinder 1 rotates around the rotating shaft 3 to the required test angle, the pin 4 is inserted into the through hole 30 and locked in the keyway 21, achieving relative fixation between the test cylinder 1 and the support base 2. This provides stable support and flexible rotation capability, facilitating the adjustment of the tilt angle of the test cylinder 1, thereby meeting different experimental needs and providing greater flexibility for experiments. It should be noted that the number of through holes 30 and their relative angles in the circumferential direction can be set according to actual test requirements. For example, multiple through holes 30 can intersect in a cross shape or a star shape, which can realize continuous adjustment of the tilt angle of the drive line within the range of -90° to 90°, meeting the test requirements of multiple tilt angles over a large range. The keyway 21 is composed of two spaced square blocks welded to the side of the support 2, and the gap is used to insert the limiting pin 4.

[0021] Furthermore, in specific implementation, several rotating shafts 3 are provided along the circumference of the test cylinder 1 in the above-mentioned embodiment of the present invention, and the rotating shafts 3 are arranged in pairs, with the pairs of rotating shafts 3 arranged opposite each other. The paired arrangement and relative distribution of the rotating shafts 3 can achieve angular tilting in different directions, effectively improving the flexibility of the device.

[0022] Preferably, several support seats 2 are provided, and each support seat 2 is connected to a rotating shaft 3. Each support seat 2 includes a base plate 22, a support block 23, and a cover plate 24. The base plates 22 are detachably connected. The top of the support block 23 has a U-shaped connecting groove 20. The cover plate 24 is bolted to the top of the support block 23 to confine the rotating shaft 3 within the connecting groove 20. It should be noted that bolt holes are provided on the base plate 22, and the base plate 22 is fixed to a stable plane by bolts. In actual use, in order to avoid structural interference between the test cylinder 1 and the support seats 2, only two support seats 2 whose connecting line is perpendicular to the inclined plane are retained as fulcrum supports for the rotation of the test cylinder 1.

[0023] In addition, a reinforcing elbow plate 25 connects the base plate 22 and the support block 23. This improves the overall structural rigidity and load-bearing capacity, reduces structural deformation under stress, and extends the service life of the device.

[0024] Furthermore, in specific implementation, the test cylinder 1 provided in this embodiment of the present invention is provided with an upper chain hoist 5 and a lower chain hoist 6 for pulling the test cylinder 1 to rotate and tilt. It should be noted that one end of the upper chain hoist 5 and the lower chain hoist 6 are both set on the test cylinder 1, and the other end is set on the plane on which the base plate 22 is installed. The upper chain hoist 5 and the lower chain hoist 6 are both at a certain angle to the vertical direction, which facilitates and quickly adjusts the tilt position of the test cylinder 1, improves the convenience of experimental operation, reduces the cumbersomeness of manual operation, and makes the tilt test more efficient.

[0025] The specific working method of this utility model is as follows: First, the test cylinder 1 is hoisted between the support seats 2. Through the positioning cooperation between the rotating shaft 3 and the connecting groove 20, the test cylinder 1 is placed on the support seat 2 and the cover plate 24 is connected. Then, the test cylinder 1 is tilted by the opposing pull of the upper chain hoist 5 and the lower chain hoist 6. When the required tilt angle is reached, the tilt angle of the test cylinder 1 is fixed by connecting the hole 30 and the keyway 21 through the pin 4.

Claims

1. A device capable of tilting a drive line and adjusting the tilt angle, characterized in that, The test cylinder (1) includes a test cylinder (1) and a support base (2). The support base (2) has a connecting groove (20). The test cylinder (1) has a rotating shaft (3) that extends horizontally outward from the middle and is rotatably connected to the connecting groove (20). The rotating shaft (3) has several through holes (30) radially opened on the same circumferential surface. The support base (2) has a keyway (21). The test cylinder (1) is locked to the support base (2) by connecting the through holes (30) and the keyway (21) in series with a pin (4).

2. The device for achieving drive line tilting and adjustable tilt angle according to claim 1, characterized in that, The rotating shafts (3) are arranged in pairs along the circumference of the test cylinder (1), and the pairs of rotating shafts (3) are arranged opposite to each other.

3. The device for achieving drive line tilting and adjustable tilt angle according to claim 2, characterized in that, The support base (2) is provided in several parts, and each support base (2) is connected to a rotating shaft (3).

4. The device for achieving drive line tilting and adjustable tilt angle according to claim 3, characterized in that, Each of the support seats (2) includes a base plate (22), a support block (23) and a cover plate (24). The base plates (22) are detachably connected. The top of the support block (23) is provided with a U-shaped connecting groove (20). The cover plate (24) is bolted to the top of the support block (23) to limit the rotating shaft (3) within the connecting groove (20).

5. The device for achieving drive line tilting and adjustable tilt angle according to claim 4, characterized in that, A reinforcing elbow plate (25) connects the base plate (22) and the support block (23).

6. The device for achieving drive line tilting and adjustable tilt angle according to claim 4, characterized in that, Bolt holes are provided on the base plate (22).

7. The device for achieving drive line tilting and adjustable tilt angle according to claim 1, characterized in that, The test cylinder (1) is provided with an upper chain hoist (5) and a lower chain hoist (6) for pulling the test cylinder (1) to rotate and tilt.

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