Fast reactor sodium pump electric turning gear and using method thereof

Abstract

The invention discloses a fast reactor sodium pump electric barring device and a using method thereof, and relates to the technical field of electric barring, the fast reactor sodium pump electric barring device 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 supporting 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 fast reactor sodium pump electric barring device and the using method thereof, a servo motor is connected with a driving pinion to drive a group of driven gearwheels for transmission, and barring operation is carried out on a barring motor shaft. 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 invention relates to the technical field of electric turning gears, and in particular to an electric turning gear device for a fast reactor sodium pump and a use method thereof. Background Art

[0002] The electric cranking gear of the fast reactor sodium pump is an auxiliary device used for the sodium pump equipment in the fast reactor nuclear reactor. Its main function is to crank the sodium pump by electric drive. The electric cranking gear is used to check whether the sodium pump and the motor shaft meet the technical requirements after assembly. Before the equipment is started, it can identify the jamming between the moving and static parts in advance, check whether there are abnormal phenomena in the pump, such as the jamming of rotating parts, the blockage of debris, the rusting of parts, the solidification of the internal medium, the packing is too tight or too loose, the shaft seal is leaking, the bearing is short of oil, the shaft is bent and deformed, and check whether the pump shaft rotates flexibly. When checking the cranking pump, feel whether the weight of its rotation is uniform and whether there is any abnormal sound.

[0003] At present, the electric winch cannot significantly improve the safety and flexibility of the sodium pump motor shaft winch operation, and it is inconvenient to adjust according to the actual situation on site.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an electric turning device for a fast reactor sodium pump and a method of using the same are proposed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an electric turning gear device for a fast reactor sodium pump and a method for using the same, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an electric winch device for a fast reactor sodium pump and a method of using the same, comprising a servo power wrench and a force plate extension plate, a driving gear matching assembly being provided at the bottom of the servo power wrench, and a support frame being installed at the bottom of the driving gear matching assembly, the servo power wrench comprising a servo motor and an electrical box, and an electrical box being provided at one side of the top of the servo motor, the electrical box being connected to a drive mechanism control box through a cable, an output end at the bottom of the servo motor being connected to a pinion through the driving gear matching assembly, and a driven large gear being meshingly installed on the outer surface of the pinion, an upper pull-up bracket being provided in an annular manner on the outer surface of the support frame, and the force plate extension plate being provided at the end of the upper pull-up bracket, a hoop gear connecting plate being provided at the bottom of the driven large gear, and a hoop being provided at the bottom of the hoop gear connecting plate, a coupling being provided on the outside of the hoop, and a motor shaft being provided in the middle of the coupling.

[0007] Furthermore, a reaction arm assembly is provided on the bottom outer surface of the support frame, and the reaction arm assembly includes a base fixing, a reaction rod and a window end fixing. A reaction rod is provided at the bottom of the base fixing, and the end of the reaction rod is installed with a window end fixing.

[0008] Furthermore, the reaction arm assemblies are provided in two groups, and the reaction arm assemblies are distributed on the outer surface of the bottom of the support frame.

[0009] Furthermore, the reaction rod and the window end fixing piece are distributed in a one-to-one correspondence, and the reaction rod and the window end fixing piece are connected and fixed by a clamp structure.

[0010] Furthermore, a connecting piece is provided on the outer surface of the top of the support frame, and two groups of connecting pieces are installed.

[0011] Furthermore, the force plate extension plate includes a force plate extension plate, a force baffle plate and a latch, and a built-in groove is opened at the end of the force plate extension plate, and there are three groups of force plate extension plates distributed in a ring around the center of the support frame.

[0012] Furthermore, the auxiliary gear assembly is provided in three groups in a ring shape about the outer surface of the bottom of the support frame, and a guide shaft is provided in the middle of the bottom of the pinion gear.

[0013] Furthermore, a mounting plate is provided at the bottom of the guide shaft, and the mounting plate is fixed to the outer surface of the bottom of the support frame by screws.

[0014] Furthermore, the method for using the electric turning device of the fast reactor sodium pump comprises the following steps: Step 1: First, place the entire electric turning device of the fast reactor sodium pump inside the pump body, and then install the clamp to the end of the coupling. The clamp adopts a Hough clamp, which is wrapped around the motor shaft. The Hough clamp consists of a clamp bracket and a rubber lining, which is conducive to the stable use of the clamp. By adopting a servo motor drive design, the size and weight of the tool can be greatly reduced, so that the tool can be directly installed near the coupling inside the pump body, which is convenient for observing the turning situation and timely controlling the turning process. Step 2: Then the reaction rod in the reaction arm assembly extends toward the pump body casing window, so that the window end fixing piece at the end of the reaction rod is stuck on the outer surface of the pump body casing window, thereby preventing the support frame from moving when the driven large gear and small gear are running subsequently. In addition, the force plate extension assembly connected to the upper pull bracket is fixed on the notch of the pump body casing, and the force plate extension piece can slide on the outside of the force plate extension plate through the design of the latch, so as to facilitate the adjustment of the distance between the force plate extension plate and the force baffle plate according to the thickness of the pump body casing, so as to facilitate the connection of the force baffle plate with the pump body casing; Step three, then through the design of the servo motor in the servo power wrench, it can drive the small gear to rotate. The three groups of small gears are designed to rotate, and the three groups of small gears are distributed in a stable triangular structure. When the small gear rotates, it can drive the driven large gear to rotate in the middle of the support frame, ensuring that the driven large gear and small gear run smoothly. The servo motor is connected to the active small gear to drive a group of driven large gears to drive the motor shaft of the winch.

[0015] The present invention provides an electric turning device for a fast reactor sodium pump and a method for using the same, which have the following beneficial effects: 1. The electric turning device of the fast reactor sodium pump and the use method thereof, the clamp is wrapped around the motor shaft, the half clamp is composed of a clamp bracket and a rubber lining, which is conducive to the stable use of the clamp, and the servo motor drive design is adopted to greatly reduce the size and weight of the tool, so that the tool can be directly installed near the coupling inside the pump body, which is convenient for observing the turning situation and timely controlling the turning process.

[0016] 2. The electric cranking device for the fast reactor sodium pump and the use method thereof crank the motor shaft of the cranking device by connecting a servo motor to an active pinion to drive a group of driven large gears. The two groups of pinions and a group of driven large gears adopt a triangle vertex with 1 main and 2 secondary gears, which are in an embracing posture, so that the pinion and the driven large gears are closely matched, which can greatly improve the safety and flexibility of the cranking operation of the sodium pump motor shaft.

[0017] 3. The electric turning device of the fast reactor sodium pump and the use method thereof, through the design of the force plate extension plate and the pull-up bracket, the force plate extension piece can slide outside the force plate extension plate through the design of the latch, so that it is convenient to adjust the distance between the force plate extension plate and the force baffle plate according to the thickness of the pump body shell, and it is convenient to connect the force baffle plate with the pump body shell, and it can be adjusted according to the actual situation on site, reducing the difficulty and cost of installation, and adopting intelligent electric turning, so that the turning process is safer and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of an electric turning gear device for a fast reactor sodium pump and a method for using the same according to the present invention; Figure 2 It is a partial structural schematic diagram of a main view connection section of a driven large gear and a motor shaft of an electric turning gear device for a fast reactor sodium pump and a method for using the same according to the present invention; Figure 3 It is a schematic diagram of the structure of a support frame of an electric turning device for a fast reactor sodium pump and a method for using the same in a bottom view according to the present invention; Figure 4 It is a schematic diagram of the structure of a force plate extension plate of an electric turning device for a fast reactor sodium pump and a method for using the same according to the present invention; Figure 5The invention provides an electric turning device for a fast reactor sodium pump and a method for using the same Figure 3 Enlarged structural diagram at A in the middle.

[0019] In the figure: 1. servo power wrench; 2. force plate extension plate; 3. pull-up bracket; 4. driving 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 baffle; 15. latch; 16. small gear; 17. guide shaft; 18. servo motor; 19. electrical box; 20. base fixing; 21. reaction rod; 22. window end fixing. DETAILED DESCRIPTION

[0020] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] like Figure 1-Figure 5As shown, the present invention provides a technical solution: an electric turning device for a fast reactor sodium pump and a method for using the same, comprising a servo power wrench 1, a force plate extension plate 2, a pull-up bracket 3, a driving gear matching assembly 4, a reaction arm assembly 5, a support frame 6, a connecting piece 7, a driven large gear 8, a clamp gear connecting plate 9, a clamp 10, an auxiliary gear assembly 11, a motor shaft 12, a coupling 13, a force baffle 14, a latch 15, a pinion 16, a guide shaft 17, a servo motor 18, an electrical box 19, a base fixing piece 20, a reaction rod 21 and a window end fixing Part 22, the bottom of the servo power wrench 1 is provided with a driving gear matching component 4, and the bottom of the driving gear matching component 4 is installed with a support frame 6, the top outer surface of the support frame 6 is provided with a connecting piece 7, and the connecting piece 7 is installed with two groups, the servo power wrench 1 includes a servo motor 18 and an electrical box 19, and the electrical box 19 is provided on one side of the top of the servo motor 18. By adopting the servo motor 18 drive design, the size and weight of the tool can be greatly reduced, so that the tool can be directly installed near the coupling 13 inside the pump body, which is convenient for observing the turning situation and timely To control the turning process, the electrical box 19 is connected to the drive mechanism control box through a cable, the output end at the bottom of the servo motor 18 is connected to the pinion 16 through the driving gear matching component 4, and the outer surface of the pinion 16 is meshed with the driven large gear 8, the outer surface of the support frame 6 is annularly provided with an upper pull bracket 3, and the force plate extension plate 2 is arranged at the end of the upper pull bracket 3, the bottom of the driven large gear 8 is installed with a hoop gear connecting plate 9, and the bottom of the hoop gear connecting plate 9 is provided with a hoop 10, and the hoop 10 is encircled on the motor shaft 12, the half type The clamp is composed of a clamp bracket and a rubber lining, which is conducive to the stable use of the clamp 10. The motor shaft of the winch is turned by a servo motor 18 and three sets of small gears 16 and a driven large gear 8. The two sets of small gears and one set of driven large gears use 1 main and 2 sub-gears with the center at the vertices of a triangle in an embracing posture, so that the small gear 16 and the driven large gear 8 are closely matched, which can greatly improve the safety and flexibility of the turning operation of the sodium pump motor shaft. A coupling 13 is installed on the outside of the clamp 10, and a motor shaft 12 is arranged in the middle of the coupling 13.

[0022] like Figure 1 , Figure 3 and Figure 5As shown, a reaction arm assembly 5 is provided on the bottom outer surface of the support frame 6, and the reaction arm assembly 5 includes a base fixing member 20, a reaction rod 21 and a window end fixing member 22. A reaction rod 21 is provided at the bottom of the base fixing member 20, and the end of the reaction rod 21 is installed with the window end fixing member 22. An auxiliary gear assembly 11 is provided on one side of the outside of the reaction arm assembly 5. The auxiliary gear assembly 11 is provided with three groups in an annular manner on the bottom outer surface of the support frame 6. A guide shaft 17 is provided at the middle of the bottom of the pinion 16, and a mounting plate 23 is provided at the bottom of the guide shaft 17, and the mounting plate 23 is screwed in The reaction rod 21 and the window end fixing piece 22 are connected and fixed by a clamp structure. The reaction rod 21 in the reaction arm assembly 5 extends toward the window of the pump body casing, so that the window end fixing piece 22 at the end of the reaction rod 21 is stuck on the outer surface of the window of the pump body casing, thereby preventing the support frame 6 from moving when the driven large gear 8 and the small gear 16 are running subsequently.

[0023] like Figure 1 and Figure 4 As shown, the force plate extension plate 2 includes a force baffle 14 and a latch 15, and the inside of the force baffle 14 is provided with a latch 15, and the force baffle member 14 is slidably arranged on the outside of the force plate extension plate 2 through the latch 15, and the force plate extension plate 2 has three groups distributed in a central ring around the support frame 6. Through the design of the force plate extension plate 2 and the pull-up bracket 3, the force baffle 14 can slide on the outside of the force plate extension plate 2 through the design of the latch 15, which is convenient for adjusting the distance between the force plate extension plate 2 and the force baffle 14 according to the thickness of the pump body shell, and is convenient for connecting the force baffle 14 to the pump body shell. It can be adjusted according to the actual situation on site, reducing the difficulty and cost of installation, and adopting an intelligent electric winch to make the winch process safer and more efficient.

[0024] In summary, if Figure 1-Figure 5As shown, the electric cranking device of the fast reactor sodium pump and the method of using the same, when in use, first place the entire electric cranking device of the fast reactor sodium pump inside the pump body, and then install the clamp 10 to the end of the coupling 13, wherein the clamp 10 adopts a Hough type clamp, and the clamp 10 is encircled on the motor shaft 12. The Hough type clamp consists of a clamp bracket and a rubber lining, which is conducive to the stable use of the clamp 10. By adopting a servo motor 18 drive design, the size and weight of the tool can be greatly reduced, so that the tool can be directly installed near the coupling 13 inside the pump body, which is convenient for observing the cranking situation and timely controlling the cranking process; then the reaction rod 21 in the reaction arm assembly 5 extends toward the pump body casing window, so that the window end fixing piece 22 at the end of the reaction rod 21 is stuck on the outer surface of the pump body casing window, so that when the driven large gear 8 and the small gear 16 are running subsequently, the reaction rod 21 can be , which can prevent the support frame 6 from moving. In addition, the force plate extension plate 2 and the pull-up bracket 3 extend out of the pump body shell track, and the force baffle 14 can slide on the outside of the force plate extension plate 2 through the design of the pin 15, which is convenient for adjusting the distance between the force plate extension plate 2 and the force baffle 14 according to the thickness of the pump body shell, and is convenient for the force baffle 14 to be connected to the pump body shell; then, through the design of the servo motor 18 in the servo power wrench 1, the pinion 16 can be driven to rotate, the three groups of pinion gears 16 are designed to rotate, and the three groups of pinion gears 16 are distributed into 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 gear 16 rotates, ensuring that the driven large gear 8 and the pinion gear 16 run smoothly, and the motor shaft of the winch is driven by the servo motor 18 and the three groups of pinion gears 16 and the driven large gear 8.

[0025] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An electric turning device for a fast reactor sodium pump, comprising a servo power wrench (1) and a force plate extension plate (2), characterized in that: The bottom of the servo power wrench (1) is provided with a driving gear matching assembly (4), and a support frame (6) is installed at the bottom of the driving gear matching assembly (4). The servo power wrench (1) comprises a servo motor (18) and an electrical box (19), and the electrical box (19) is provided on one side of the top of the servo motor (18). The electrical box (19) is connected to a drive mechanism control box via a cable. The output end at the bottom of the servo motor (18) is connected to a pinion (16) via the driving gear matching assembly (4). ), and the outer surface of the pinion gear (16) is meshedly mounted with a driven large gear (8), the outer surface of the support frame (6) is provided with an upper pull bracket (3) in an annular shape, 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 clamping hoop gear connecting plate (9), and the bottom of the clamping hoop gear connecting plate (9) is provided with a clamping hoop (10), the outside of the clamping hoop (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 device for a fast reactor sodium pump according to claim 1, characterized in that: A reaction arm assembly (5) is provided on the outer surface of the bottom of the support frame (6), and the reaction arm assembly (5) comprises a base fixing member (20), a reaction rod (21) and a window end fixing member (22); a reaction rod (21) is provided at the bottom of the base fixing member (20), and the window end fixing member (22) is installed at the end of the reaction rod (21); and an auxiliary gear assembly (11) is provided on one side of the outside of the reaction arm assembly (5).

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

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

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

6. The electric turning device for a fast reactor sodium pump according to claim 1, characterized in that: The force plate extension plate (2) comprises a force baffle plate (14) and a latch (15), and a built-in groove is provided inside the force baffle plate (14), and three groups of force plate extension plates (2) are distributed in a ring shape around the center of the support frame (6).

7. The electric turning device for a fast reactor sodium pump according to claim 2, characterized in that: The auxiliary gear assembly (11) is provided in three groups in an annular shape on the outer surface of the bottom of the support frame (6), and a guide shaft (17) is provided in the middle of the bottom of the pinion gear (16).

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

9. A method for using an electric turning gear device for a fast reactor sodium pump, applied to an electric turning gear device for a fast reactor sodium pump according to any one of claims 1 to 8, characterized in that: The method for using the electric turning gear device of the fast reactor sodium pump comprises the following steps: Step 1: firstly, the entire electric turning device of the fast reactor sodium pump is placed inside the pump body, and then the clamp (10) is installed to the end of the coupling (13), wherein the clamp (10) adopts a Hough type clamp, and the clamp (10) is encircled on the motor shaft (12). The Hough type clamp is composed of a clamp bracket and a rubber lining, which is conducive to the stable use of the clamp (10). By adopting a servo motor (18) drive design, the size and weight of the tool can be greatly reduced, so that the tool can be directly installed near the coupling (13) inside the pump body, which is convenient for observing the turning condition and timely controlling the turning process; Step 2, the reaction rod (21) in the reaction arm assembly (5) is then extended toward the pump housing window, so that the window end fixing piece (22) at the end of the reaction rod (21) is stuck on the outer surface of the pump housing window, thereby preventing the support frame (6) from moving when the driven large gear (8) and the small gear (16) are running. In addition, the force plate extension plate (2) in the force plate extension assembly connected to the upper pull bracket (3) extends out of the notch of the pump housing, and the force baffle plate (14) can slide outside the force plate extension plate (2) through the design of the latch (15), so that the distance between the force plate extension plate (2) and the force baffle plate (14) can be adjusted according to the thickness of the pump housing, so that the force baffle plate (14) is connected to the pump housing; Step three, then through the design of the servo motor (18) in the servo power wrench (1), the pinion (16) can be driven to rotate. The three sets of pinion gears (16) are designed to rotate, and the three sets of pinion gears (16) are distributed in a stable triangular structure design. When the pinion gear (16) rotates, the driven large gear (8) can be driven to rotate in the middle of the support frame (6), ensuring that the driven large gear (8) and the pinion gear (16) run smoothly. The motor shaft of the turning wheel is turned by the servo motor (18) and the three sets of pinion gears (16) and the driven large gear (8) The transmission mode is to drive the motor shaft of the turning wheel.

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