Electric turning gear for fast reactor sodium pump

Abstract

The utility model discloses a fast reactor sodium pump electric barring gear, which relates to the technical field of electric barring, and comprises a servo power wrench and a force plate extension plate, the bottom of the servo power wrench is provided with a driving gear matching assembly, and the bottom of the driving gear matching assembly is provided with a support frame; the servo power wrench comprises a servo motor and an electrical box, the electrical box is arranged on one side of the top of the servo motor, and the output end of the electrical box is connected to the driving mechanism control box through a cable. According to the electric turning gear for the fast reactor sodium pump, a servo motor is connected with a driving pinion to drive a group of driven bull gears for transmission, so that a motor shaft of the turning gear is turned. The two groups of pinions and the group of driven bull gear adopt one main gear and two auxiliary gear centers and are in an encircling posture on the vertex of a triangle, so that the pinions are tightly matched with the driven bull gear, and the safety and the flexibility of the turning operation of the sodium pump motor shaft can be greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric turning gear technical field, concretely is a kind of fast reactor sodium pump electric turning gear device. BACKGROUND

[0002] Fast reactor sodium pump electric turning gear is a kind of auxiliary device for sodium pump equipment in fast reactor nuclear reactor, and the main function is to carry out turning gear operation to sodium pump by electric drive mode, and electric turning gear special device is used to check whether sodium pump, motor shaft assembly meet technical requirements after being completed, can identify the jamming between moving and static parts in advance before equipment starts, check whether there is abnormal phenomenon in pump, such as rotating part jam, sundries block, part corrosion, internal medium solidification, packing too tight or too loose, shaft seal leakage, bearing oil shortage, shaft bending deformation and the like, and check whether pump shaft rotates flexibly or not.Pump checking, try its rotation whether uniform or not by feeling, whether there is abnormal sound.

[0003] At present, electric turning gear cannot greatly improve the turning operation safety of sodium pump motor shaft, flexibility, and inconvenience can be adjusted according to actual situation.

[0004] Therefore, in view of the above, the existing structure and defects are improved, and a fast reactor sodium pump electric turning gear device is provided. INVENTION CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of fast reactor sodium pump electric turning gear device, solve the problems raised in the above background art.

[0006] To achieve the above object, the utility model is realized by the following technical scheme: a kind of fast reactor sodium pump electric turning gear device, including servo power wrench and force plate extension plate, the bottom of the servo power wrench is provided with driving gear matching assembly, and the bottom of driving gear matching assembly is installed with support frame, the servo power wrench includes servo motor and electrical box, and the top of servo motor one side is provided with electrical box, and electrical box is connected to drive mechanism control box by cable, the output end of the bottom of servo motor is connected with pinion by driving gear matching assembly, and the outer surface of pinion is engaged and installed with driven large gear, the outer surface of the support frame is annularly provided with upper pull bracket, and force plate extension plate is arranged at the end of upper pull bracket, the bottom of the driven large gear is installed with hoop gear connecting disc, and the bottom of hoop gear connecting disc is provided with hoop, the outside of the hoop is installed with shaft coupling, and the middle of shaft coupling is provided with motor shaft.

[0007] Further, the bottom outer surface of the support frame is provided with counterforce arm assembly, and the counterforce arm assembly includes base fixing piece, counterforce rod and window end fixing piece, the bottom of the base fixing piece is provided with counterforce rod, and the end of counterforce rod is installed with window end fixing piece.

[0008] Further, the counterforce arm assemblies are arranged in two groups and distributed on the outer surface of the bottom of the support frame.

[0009] Further, the counterforce rods and the window end fixing members are arranged in one-to-one correspondence and are connected and fixed by a hoop structure.

[0010] Further, the outer surface of the top of the support frame is provided with connecting plates, and two groups of connecting plates are arranged on the outer surface of the top of the support frame.

[0011] Further, the force plate extension plate comprises a force plate extension plate, a force receiving baffle and a bolt, and the force plate extension plate is provided with an embedded groove at the end thereof, and the force plate extension plate is arranged in three groups in a ring shape about the center of the support frame.

[0012] Further, the auxiliary gear assembly is arranged in three groups in a ring shape about the outer surface of the bottom of the support frame, and the bottom of the small gear is provided with a guide shaft.

[0013] Further, the bottom of the guide shaft is provided with a mounting plate, and the mounting plate is fixedly mounted on the outer surface of the bottom of the support frame by screws.

[0014] The utility model provides a kind of fast reactor sodium pump electric turning gear device, with following beneficial effects:

[0015] 1. The fast reactor sodium pump electric turning gear device, the hoop is embraced on motor shaft, and the half hoop is composed of hoop support and rubber lining, which is conducive to the stable use of the hoop. By adopting the design of servo motor driving, the size and weight of the tool can be greatly reduced, allowing the tool to be installed directly inside the pump body near the coupling. This facilitates observation of the turning condition and timely control of the turning process.

[0016] 2. The fast reactor sodium pump electric turning gear device drives a set of driven gears through the servo motor connected to the driving pinion. The two pinions and the driven gear are arranged in a ring shape with the center of the 1:2 gear at the top of the triangle, which allows the pinion and the driven gear to work closely together, greatly improving the safety and flexibility of the sodium pump motor shaft turning operation.

[0017] 3. The fast reactor sodium pump electric turning gear device is designed with a force plate extension plate and an upper pull bracket. The force plate extension piece can slide outside the force plate extension plate through the design of the bolt, which facilitates the adjustment of the distance between the force plate extension plate and the force receiving baffle according to the thickness of the pump body shell. The force receiving baffle can be connected to the pump body shell, which can be adjusted according to the actual situation on site, reducing the installation difficulty and cost. The intelligent electric turning makes the turning process safer and more efficient. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1This is a three-dimensional structural schematic diagram of an electric turning gear device for a fast reactor sodium pump according to the present invention;

[0019] Figure 2 This is a partial structural schematic diagram of the main view connection section between the driven large gear and the motor shaft of the electric turning gear of the fast reactor sodium pump according to the present invention;

[0020] Figure 3 This is a bottom view of the support frame structure of the electric turning gear device for a fast reactor sodium pump according to the present invention;

[0021] Figure 4 This is a schematic diagram of the force plate extension plate structure of an electric turning gear device for a fast reactor sodium pump according to the present invention;

[0022] Figure 5 This utility model relates to an electric turning gear device for a fast reactor sodium pump. Figure 3 Enlarged structural diagram at point A in the middle.

[0023] In the diagram: 1. Servo power wrench; 2. Force plate extension plate; 3. Pull-up bracket; 4. Drive gear matching assembly; 5. Reaction arm assembly; 6. Support frame; 7. Connecting plate; 8. Driven large gear; 9. Clamp gear connecting plate; 10. Clamp; 11. Auxiliary gear assembly; 12. Motor shaft; 13. Coupling; 14. Force-bearing baffle; 15. Pin; 16. Pinion; 17. Guide shaft; 18. Servo motor; 19. Electrical box; 20. Base fixing component; 21. Reaction rod; 22. Window end fixing component. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] like Figures 1-5The utility model provides technical schemes: a fast reactor sodium pump electric turning gear device, including servo power wrench 1, force plate extension plate 2, pull up support 3, driving gear matched assembly 4, counterforce arm assembly 5, support frame 6, connecting piece 7, driven large gear 8, hoop gear connecting disc 9, hoop 10, auxiliary gear assembly 11, motor shaft 12, shaft coupling 13, stress baffle 14, bolt 15, pinion 16, guide shaft 17, servo motor 18, electrical box 19, base fixing piece 20, counterforce rod 21 and window end fixing piece 22, servo power wrench 1's bottom is provided with driving gear matched assembly 4, and driving gear matched assembly 4's bottom is installed with support frame 6, and support frame 6 top outer surface is provided with connecting piece 7, and connecting piece 7 is installed with two groups, servo power wrench 1 includes servo motor 18 and electrical box 19, and servo motor 18 top one side is provided with electrical box 19, through servo motor 18 drive design, can greatly reduce the volume and weight of tool, make tool can be installed directly in the pump body inside near shaft coupling 13, the turning gear condition is conveniently observed, and the turning gear process is controlled in time, electrical box 19 is connected to drive mechanism control box through cable, the output end of servo motor 18 bottom is connected with pinion 16 through driving gear matched assembly 4, and the outer surface of pinion 16 is engaged and installed with driven large gear 8, and the outer surface of support frame 6 is annularly provided with pull up support 3, and force plate extension plate 2 is arranged at the end of pull up support 3, driven large gear 8's bottom is installed with hoop gear connecting disc 9, and the bottom of hoop gear connecting disc 9 is provided with hoop 10, and hoop 10 embraces motor shaft 12, and the half hoop is composed of hoop support and rubber lining, which is conducive to the stable use of hoop 10, the motor shaft disc operation of turning gear is driven through servo motor 18 and the transmission mode of three groups of pinion 16 and driven large gear 8, and the center of two groups of pinions and a group of driven large gears adopts 1 main 2 auxiliary gears on the apex of triangle, and assumes the embracing posture, makes pinion 16 and driven large gear 8 closely cooperate, can greatly improve the turning gear operation safety of sodium pump motor shaft, flexibility, and shaft coupling 13 is installed on the outside of hoop 10, and the middle part of shaft coupling 13 is provided with motor shaft 12.

[0026] As Figure 1 , Figure 3 and Figure 5As shown, the bottom outer surface of the support frame 6 is provided with a counterforce arm assembly 5, and the counterforce arm assembly 5 includes a base fixing piece 20, a counterforce rod 21 and a window end fixing piece 22, the bottom of the base fixing piece 20 is provided with the counterforce rod 21, and the end of the counterforce rod 21 is provided with the window end fixing piece 22, one side of the outer surface of the counterforce arm assembly 5 is provided with an auxiliary gear assembly 11, the auxiliary gear assembly 11 is annularly provided with three groups about the bottom outer surface of the support frame 6, the bottom middle of the pinion gear 16 is provided with a guide shaft 17, the bottom of the guide shaft 17 is provided with a mounting plate 23, and the mounting plate 23 is fixedly installed on the bottom outer surface of the support frame 6 by screws, the counterforce arm assembly 5 is provided with two groups, the two groups of counterforce arm assemblies 5 are distributed on the bottom outer surface of the counterforce arm assembly 5, the counterforce rod 21 and the window end fixing piece 22 are one-to-one distributed, and the counterforce rod 21 and the window end fixing piece 22 are connected and fixed by a hoop structure, the counterforce rod 21 in the counterforce arm assembly 5 extends out of the pump body shell window, so that the window end fixing piece 22 at the end of the counterforce rod 21 is clamped on the outer surface of the pump body shell window, thereby preventing the support frame 6 from moving when the subsequent driven gear 8 and pinion gear 16 are running.

[0027] As shown in Figure 1 and Figure 4 The force plate extension plate 2 includes a force resisting baffle 14 and a plug 15, and the inside of the force resisting baffle 14 is provided with the plug 15, the force resisting baffle 14 is slidably arranged outside the force plate extension plate 2 through the plug 15, and the force plate extension plate 2 is annularly distributed with three groups about the center of the support frame 6, through the design of the force plate extension plate 2 and the upper pull bracket 3, the force resisting baffle 14 can slide outside the force plate extension plate 2 through the design of the plug 15, which is convenient for adjusting the distance between the force plate extension plate 2 and the force resisting baffle 14 according to the thickness of the pump body shell, and convenient for connecting the force resisting baffle 14 with the pump body shell, which can be adjusted according to the actual situation on site, reducing the installation difficulty and cost, and using intelligent electric turning to make the turning process safer and more efficient.

[0028] In summary, as shown in Figures 1-5As shown, the electric disc turning device of the fast reactor sodium pump is used, first, the whole electric disc turning device of the fast reactor sodium pump is placed in the pump body, then the clamp 10 is installed at the end of the shaft 12, the clamp 10 is a half clamp, the clamp 10 is wrapped around the motor shaft 12, the half clamp is composed of a clamp support and a rubber lining, which is conducive to the stable use of the clamp 10, the servo motor 18 driving design can greatly reduce the size and weight of the tool, so that the tool can be directly installed in the pump body near the shaft 13, the disc turning condition is observed, and the disc turning process is controlled in time; then the counterforce rod 21 in the counterforce arm assembly 5 extends out of the pump body shell window, so that the window end fixing piece 22 at the end of the counterforce rod 21 is clamped on the outer surface of the pump body shell window, so that the support frame 6 can be prevented from moving when the driven large gear 8 and the pinion 16 operate subsequently, in addition, the force plate extension plate 2 and the upper pull support 3 extend out of the pump body shell track, and the stress baffle 14 can slide outside the force plate extension plate 2 through the design of the bolt 15, so as to adjust the distance between the force plate extension plate 2 and the stress baffle 14 according to the thickness of the pump body shell, and facilitate the connection between the stress baffle 14 and the pump body shell; then the servo motor 18 in the servo power wrench 1 can drive the pinion 16 to rotate, the three sets of pinion 16 rotate design, and the three sets of pinion 16 are distributed in a stable triangular structure design, which can drive the driven large gear 8 to rotate in the middle of the support frame 6 when the pinion 16 rotates, so as to ensure that the driven large gear 8 and the pinion 16 operate stably, and the motor shaft disc operation of the disc turning is driven by the servo motor 18 and the three sets of pinion 16 and the driven large gear 8.

[0029] The embodiments of the present application are given for the purpose of example and description, and are not exhaustive or limit the present application to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles and practical application of the present application, and to enable those of ordinary skill in the art to understand the present application in order to design various embodiments with various modifications suitable for specific purposes.

Claims

1. An electric turning device for a fast reactor sodium pump, comprising a servo-powered wrench (1) and a force plate extension plate (2), characterized in that: The servo power wrench (1) has a drive gear assembly (4) at its bottom, and a support frame (6) is installed at the bottom of the drive gear assembly (4). The servo power wrench (1) includes a servo motor (18) and an electrical box (19). The electrical box (19) is located on one side of the top of the servo motor (18). The electrical box (19) is connected to the drive mechanism control box via a cable. The output end of the servo motor (18) is connected to a pinion (16) via the drive gear assembly (4). The outer surface of the small gear (16) is meshed with the driven large gear (8), the outer surface of the support frame (6) is provided with an upper pull bracket (3), and the force plate extension plate (2) is provided at the end of the upper pull bracket (3). The bottom of the driven large gear (8) is provided with a clamp gear connecting plate (9), and the bottom of the clamp gear connecting plate (9) is provided with a clamp (10). The outside of the clamp (10) is provided with a coupling (13), and the middle of the coupling (13) is provided with a motor shaft (12).

2. The electric turning gear device for a fast reactor sodium pump according to claim 1, characterized in that: The bottom outer surface of the support frame (6) is provided with a reaction arm assembly (5), and the reaction arm assembly (5) includes a base fixing member (20), a reaction rod (21) and a window end fixing member (22). The bottom of the base fixing member (20) is provided with a reaction rod (21), and the end of the reaction rod (21) is installed with a window end fixing member (22). An auxiliary gear assembly (11) is provided on one side of the outside of the reaction arm assembly (5).

3. The electric turning gear device for a fast reactor sodium pump according to claim 2, characterized in that: The reaction arm assembly (5) is provided in two sets, and the reaction arm assembly (5) is distributed on the bottom outer surface of the support frame (6).

4. The electric turning gear device for a fast reactor sodium pump according to claim 2, characterized in that: The reaction rod (21) and the window end fixing member (22) are distributed in a one-to-one correspondence, and the reaction rod (21) and the window end fixing member (22) are connected and fixed by a clamp structure.

5. The electric turning gear device for a fast reactor sodium pump according to claim 1, characterized in that: The support frame (6) has a connecting piece (7) on its top outer surface, and two sets of connecting pieces (7) are installed.

6. The electric turning gear device for a fast reactor sodium pump according to claim 1, characterized in that: The force plate extension plate (2) includes a force baffle (14) and a pin (15), and the force baffle (14) has an internal groove, and the force plate extension plate (2) has three sets of rings distributed around the center of the support frame (6).

7. The electric turning gear device for a fast reactor sodium pump according to claim 2, characterized in that: The auxiliary gear assembly (11) has three sets arranged in a ring around the bottom outer surface of the support frame (6), and the small gear (16) has a guide shaft (17) in the middle of its bottom.

8. The electric turning gear device for a fast reactor sodium pump according to claim 7, characterized in that: The bottom of the guide shaft (17) is provided with a mounting plate (23), and the mounting plate (23) is fixedly installed on the bottom outer surface of the support frame (6) by screws.

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