CN216326303U

CN216326303U - Base spindle dismounting tool for nuclear power station electric head

Info

Publication number: CN216326303U
Application number: CN202122769844.0U
Authority: CN
Inventors: 苗延龙; 宁传兴; 朱正林; 李春林; 李华元; 王泽健; 范金鹏; 高文磊; 唐思妙
Original assignee: China General Nuclear Power Corp; CGN Power Co Ltd; China Nuclear Power Operation Co Ltd
Current assignee: China General Nuclear Power Corp; CGN Power Co Ltd; China Nuclear Power Operation Co Ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-04-19
Anticipated expiration: 2031-11-12

Abstract

The utility model relates to a base spindle dismounting tool for a nuclear power station electric head, which comprises: the spindle base on the electric head is arranged on the support frame; the lifting assembly is arranged on the support frame, is positioned above the main shaft base and corresponds to the position of a main shaft on the main shaft base; the driving piece is connected with the lifting assembly and used for driving the lifting assembly to move, so that the main shaft is pushed out of the main shaft base by the lifting assembly. The above-mentioned scheme that this application provided, through fixing the main shaft base to the support frame, then utilize the driving piece to drive lifting unit and remove and just can follow main shaft base with the main shaft and release, whole convenient operation, degree of automation are high, have not only reduced the impaired risk of equipment, have improved work efficiency moreover.

Description

Base spindle dismounting tool for nuclear power station electric head

Technical Field

The utility model relates to the technical field of disassembling tools, in particular to a base spindle disassembling tool for a nuclear power station electric head.

Background

At present, British ROTORK intelligent electric heads are mostly used in nuclear power station systems, along with the increase of the unit operation time, a plurality of bases gradually start to regularly disassemble and maintain the electric heads, and a main shaft needs to be taken out from a base in the disassembling and maintaining process to replace an O-shaped ring in the middle of the main shaft.

There are thrust bearing and axle sleeve between current main shaft and the base, be interference fit between main shaft and the axle sleeve, use the axle sleeve to fix main shaft and base. The O-shaped ring can be replaced only after the shaft sleeve is detached when the O-shaped ring needs to be replaced, and the special tool for specially installing and detaching the main shaft and the shaft sleeve is not available at present, so that the main shaft is time-consuming and labor-consuming in the detaching process, and the main shaft is easily damaged.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a base spindle dismounting tool for a nuclear power station electric head, which aims at the problem that the spindle is inconvenient to dismount on the existing electric head.

The utility model provides a base spindle dismounting tool for a nuclear power station electric head, which comprises: the main shaft base on the electric head is arranged on the support frame;

the lifting assembly is arranged on the supporting frame, is positioned above the main shaft base and corresponds to the position of a main shaft on the main shaft base;

the driving piece is connected with the lifting assembly and used for driving the lifting assembly to move, so that the main shaft is pushed out of the main shaft base by the lifting assembly.

Above-mentioned base main shaft assembly and disassembly tools for nuclear power station electric head, through fixing the main shaft base to the support frame, then utilize the driving piece to drive lifting unit and remove and just can release the main shaft from the main shaft base, whole convenient operation, degree of automation are high, have not only reduced the impaired risk of equipment, have improved work efficiency moreover.

In one embodiment, the device further comprises a second support plate and a support rod, wherein the first support plate is arranged above the support frame, the second support plate is arranged above the first support plate, and the support rod is arranged between the second support plate and the first support plate;

the driving piece is arranged on the second supporting plate, an output shaft of the driving piece penetrates through the second supporting plate to be connected with the lifting assembly, and one end, far away from the second supporting plate, of the lifting assembly penetrates through the first supporting plate.

In one embodiment, the lifting assembly comprises a threaded rod, a nut, a guide rod and a pressing seat; the guide arm sets up first backup pad with between the second backup pad, the output shaft of driving piece passes the second backup pad with the threaded rod rotates to be connected, the nut sets up on the threaded rod, just the nut cover is established on the guide arm, be provided with the adapter sleeve on the nut, the adapter sleeve is kept away from the one end of second backup pad is passed behind the first backup pad with press the seat to be connected, press the seat to be located the main shaft top.

In one embodiment, the driving part comprises a motor and a control box, the motor is arranged on the second support plate, an output shaft of the motor penetrates through the second support plate to be connected with the threaded rod in a rotating mode, the control box is arranged on the support frame, and a controller in the control box is connected with the motor through a lead.

In one embodiment, the portable power supply further comprises a power supply box, the power supply box is arranged on the support frame, and a storage battery in the power supply box is connected with the controller through a conducting wire.

In one embodiment, the spindle base further comprises a slide rail and a base clamping groove, the slide rail is arranged on the support frame along a direction perpendicular to the height direction of the support frame, the slide rail is located below the first support plate, the base clamping groove is connected with the slide rail in a sliding mode, and the spindle base is arranged in the base clamping groove.

In one embodiment, the sliding rail further comprises a positioning ring, the positioning ring is arranged on the bottom surface of the supporting frame, and the positioning ring is located below the sliding rail.

In one embodiment, an elastic pad is arranged inside the positioning ring.

In one embodiment, the vehicle further comprises wheels, and the wheels are arranged on the bottom surface of the support frame.

In one embodiment, the wheels comprise two directional wheels and two universal wheels, the two directional wheels are arranged on one side of the bottom surface of the support frame, and the two universal wheels are arranged on the other side of the bottom surface of the support frame.

Drawings

Fig. 1 is a schematic structural diagram of a base spindle dismounting tool for a nuclear power station electric head according to an embodiment of the present invention;

fig. 2 is another schematic view of fig. 1.

The figures are labeled as follows:

10. a support frame; 101. a first support plate; 20. a slide rail; 30. a base clamp groove; 40. a second support plate; 50. a strut; 60. a motor; 70. a threaded rod; 80. a nut; 801. connecting sleeves; 90. a guide bar; 100. pressing a base; 110. a control box; 120. a power supply box; 130. a wheel; 140. positioning rings; 11. a spindle base; 12. a main shaft.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

At present, British ROTORK intelligent electric heads are mostly used in nuclear power station systems, along with the increase of the unit operation time, a plurality of bases gradually start to regularly disassemble and maintain the electric heads, and a main shaft needs to be taken out from a base in the disassembling and maintaining process to replace an O-shaped ring in the middle of the main shaft. There are thrust bearing and axle sleeve between current main shaft and the base, be interference fit between main shaft and the axle sleeve, use the axle sleeve to fix main shaft and base. The O-shaped ring can be replaced only after the shaft sleeve is detached when the O-shaped ring needs to be replaced, and the special tool for specially installing and detaching the main shaft and the shaft sleeve is not available at present, so that the main shaft is time-consuming and labor-consuming in the detaching process, and the main shaft is easily damaged.

In order to solve the above problem, as shown in fig. 1, an embodiment of the present invention provides a base spindle attachment/detachment tool for a power head of a nuclear power station, including: support frame 10, lifting unit and driving piece, wherein, the last main shaft base 11 of electric head sets up on support frame 10, and lifting unit is located the top of main shaft base 11, and lifting unit's position is corresponding with the position of main shaft 12 on the main shaft base 11, and the driving piece is connected with lifting unit for drive lifting unit removes, so that lifting unit releases main shaft 12 from main shaft base 11.

By adopting the technical scheme, the main shaft base is fixed on the supporting frame, then the driving piece is utilized to drive the lifting assembly to move so as to push the main shaft out of the main shaft base, the whole operation is convenient, the automation degree is high, the risk of equipment damage is reduced, and the working efficiency is improved.

In some embodiments, in order to facilitate the installation of the driving member, as shown in fig. 1, the base spindle dismounting tool for a power head of a nuclear power plant in the present application further includes a second support plate 40 and a support rod 50, wherein the first support plate 101 is disposed above the support frame 10, the second support plate 40 is disposed above the first support plate 101, and the support rod 50 is disposed between the second support plate 40 and the first support plate 101; the driving member is disposed on the second supporting plate 40, an output shaft of the driving member passes through the second supporting plate 40 and is connected to the lifting assembly, and one end of the lifting assembly, which is far away from the second supporting plate 40, passes through the first supporting plate 101.

In some embodiments, as shown in fig. 2 in combination with fig. 1, the lifting assembly in this application includes a threaded rod 70, a nut 80, a guide rod 90, and a pressing seat 100, wherein the guide rod 90 is disposed between a first support plate 101 and a second support plate 40, an output shaft of the driving member passes through the second support plate 40 and is rotatably connected to the threaded rod 70, the nut 80 is disposed on the threaded rod 70, the nut 80 is sleeved on the guide rod 90, a connection sleeve 801 is disposed on the nut 80, one end of the connection sleeve 801 away from the second support plate 40 passes through the first support plate 101 and is connected to the pressing seat 100, and the pressing seat 100 is located above the main shaft 12.

When the screw rod 70 is used, the screw rod 70 is driven to rotate through the driving piece, and as the nut 80 is arranged on the screw rod 70 and the nut 80 is further sleeved on the guide rod 90, when the screw rod 70 rotates, the nut 80 can move up and down along the axial direction of the screw rod 70; when the nut 80 moves downward, the nut 80 drives the pressure base 100 to move downward through the connection sleeve 801, and then the pressure base 100 pushes the spindle 12 out of the spindle base 11. The whole operation is convenient, the automation degree is high, the risk of equipment damage is reduced, and the working efficiency is improved.

In some embodiments, as shown in fig. 1, the driving member in the present application includes a motor 60 and a control box 110, wherein the motor 60 is disposed on the second support plate 40, an output shaft of the motor 60 passes through the second support plate 40 to be rotatably connected with the threaded rod 70, the control box 110 is disposed on the support frame 10, and a controller in the control box 110 is connected with the motor 60 through a wire. The controller facilitates the turning on or off of the motor 60.

In some embodiments, as shown in fig. 1, the base spindle dismounting tool for a power head of a nuclear power plant further includes a power box 120, the power box 120 is disposed on the support frame 10, and a storage battery in the power box 120 is connected to the controller through a wire. The provision of a battery in the power box 120 facilitates the power supply to the motor 60.

In some embodiments, as shown in fig. 1, the base spindle dismounting tool for a nuclear power station power head further includes a slide rail 20 and a base clamping groove 30, wherein the slide rail 20 is disposed on the support frame 10 along a height direction perpendicular to the support frame 10, the slide rail 20 is located below the first support plate 101, the base clamping groove 30 is slidably connected to the slide rail 20, and the spindle base 11 is disposed in the base clamping groove 30. The arrangement of the base clamping groove 30 and the sliding rail 20 facilitates the fixing of the spindle base 11 and the moving of the spindle base 11 to a preset position.

In some embodiments, as shown in fig. 2, the base spindle dismounting tool for a nuclear power station power head further includes a positioning ring 140, the positioning ring 140 is disposed on a bottom surface of the support frame 10, and the positioning ring 140 is located below the slide rail 20. The arrangement of the positioning ring 140 facilitates the spindle 12 falling into the corresponding position after being separated from the spindle base 11.

Further, in order to avoid the main shaft 12 from colliding with the positioning ring 140 after falling into the positioning ring 140, and thereby causing damage to the main shaft 12, the present application is provided with an elastic pad inside the positioning ring 140.

In some embodiments, in order to facilitate the movement of the whole tool, the base spindle dismounting tool for the power head of the nuclear power plant of the present application further includes a wheel 130, and the wheel 130 is disposed on the bottom surface of the support frame 10.

Further, the wheels 130 include two directional wheels and two universal wheels, the two directional wheels are disposed on one side of the bottom surface of the support frame 10, and the two universal wheels are disposed on the other side of the bottom surface of the support frame 10. Wherein, be provided with the brake structure on the directional wheel, the setting of directional wheel has made things convenient for and has fixed the whole instrument to predetermineeing the position, and the setting of universal wheel makes things convenient for turning to of whole instrument when removing.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a base main shaft assembly and disassembly tools for nuclear power station electric head which characterized in that includes:

the main shaft base (11) on the electric head is arranged on the supporting frame (10);

the lifting assembly is arranged on the support frame (10), is positioned above the main shaft base (11), and corresponds to the position of a main shaft (12) on the main shaft base (11);

the driving piece is connected with the lifting assembly and used for driving the lifting assembly to move, so that the main shaft (12) is pushed out of the main shaft base (11) by the lifting assembly.

2. The base spindle dismounting tool for the nuclear power station electric head as recited in claim 1, further comprising a second support plate (40) and a support rod (50), wherein a first support plate (101) is disposed above said support frame (10), said second support plate (40) is disposed above said first support plate (101), and said support rod (50) is disposed between said second support plate (40) and said first support plate (101);

the driving piece is arranged on the second supporting plate (40), an output shaft of the driving piece penetrates through the second supporting plate (40) to be connected with the lifting assembly, and one end, far away from the second supporting plate (40), of the lifting assembly penetrates through the first supporting plate (101).

3. The base spindle disassembly and assembly tool for a nuclear power station power head of claim 2, wherein the lifting assembly comprises a threaded rod (70), a nut (80), a guide rod (90), and a pressure seat (100);

guide arm (90) set up first backup pad (101) with between second backup pad (40), the output shaft of driving piece passes second backup pad (40) with threaded rod (70) rotate and connect, nut (80) set up on threaded rod (70), just nut (80) cover is established on guide arm (90), be provided with adapter sleeve (801) on nut (80), adapter sleeve (801) are kept away from the one end of second backup pad (40) is passed behind first backup pad (101) with press seat (100) to connect, press seat (100) to be located main shaft (12) top.

4. The base spindle dismounting tool for the nuclear power station power head as recited in claim 3, wherein the driving member comprises a motor (60) and a control box (110), the motor (60) is disposed on the second supporting plate (40), an output shaft of the motor (60) penetrates through the second supporting plate (40) to be rotatably connected with the threaded rod (70), the control box (110) is disposed on the supporting frame (10), and a controller in the control box (110) is connected with the motor (60) through a wire.

5. The base spindle dismounting tool for the nuclear power station electric head as recited in claim 4, further comprising a power supply box (120), wherein the power supply box (120) is disposed on the support frame (10), and a storage battery in the power supply box (120) is connected with the controller through a wire.

6. The base spindle dismounting tool for the nuclear power station power head as claimed in claim 2, further comprising a slide rail (20) and a base clamping groove (30), wherein the slide rail (20) is disposed on the support frame (10) along a height direction perpendicular to the support frame (10), the slide rail (20) is located below the first support plate (101), the base clamping groove (30) is slidably connected with the slide rail (20), and the spindle base (11) is disposed in the base clamping groove (30).

7. The base spindle dismounting tool for the nuclear power station electric head as recited in claim 6, further comprising a positioning ring (140), wherein the positioning ring (140) is disposed on the bottom surface of the support frame (10), and the positioning ring (140) is located below the slide rail (20).

8. The base spindle dismounting tool for the nuclear power station electric head as recited in claim 7, wherein an elastic pad is provided inside said positioning ring (140).

9. The base spindle dismounting tool for the nuclear power station electric head as claimed in any one of claims 1 to 8, further comprising a wheel (130), wherein the wheel (130) is disposed on the bottom surface of the support frame (10).

10. The base spindle dismounting tool for the nuclear power station electric head as recited in claim 9, wherein the wheels (130) include two directional wheels and two universal wheels, the two directional wheels are disposed on one side of the bottom surface of the support frame (10), and the two universal wheels are disposed on the other side of the bottom surface of the support frame (10).