Seal installer and nuclear power plant maintenance equipment

Abstract

The utility model provides a kind of sealing element installer and nuclear power plant overhauling equipment, wherein sealing element installer includes: screw rod, spanner seat connected to one end of screw rod, top-mounted connecting seat arranged at the other end of screw rod, nut seat threadedly connected with screw rod, multiple padlocks connected with nut seat and fixing seat connected to the one end on the end of padlock away from nut seat;Wherein, fixing seat is used to be connected with the workpiece of sealing element to be installed, spanner seat can be connected with spanner, spanner seat can drive screw rod to rotate around shaft, so that screw rod pushes top-mounted connecting seat to push sealing element into workpiece. By adopting the above technical scheme: reduce the experience and operation level requirement to operator;Ensure the sealing reliability of sealing element;Improve the accuracy of sealing element installation;Need small operating space, low operation requirement.

Description

Technical Field

[0001] This utility model relates to the technical field of nuclear power plant maintenance equipment, and more specifically, to a sealing installer and nuclear power plant maintenance equipment. Background Technology

[0002] Currently, in nuclear power plant maintenance work, protective pads are placed on top of seals such as oil seals. Workers manually hammer the seals in with impact tools such as hammers or copper rods, and then confirm the installation is in place by visual inspection or by measuring the depth at selected points.

[0003] The above-mentioned method of manually installing seals has the following disadvantages:

[0004] 1. Requires a high level of work experience and skills from personnel;

[0005] 2. Eccentricity exists during the force application process. If the point and direction of force application cannot be precisely positioned during the force application process, uneven force on the seal may lead to misalignment and scratches, ultimately resulting in seal failure.

[0006] 3. Installation results cannot be quantified. After the seals are installed, the quality is usually judged by listening, visual inspection, or simple measurement. This method lacks full-process control, and the quality acceptance is relatively rough, making it impossible to quantify and standardize.

[0007] 4. High requirements for the working environment. During installation, the components need to be placed on a hard, level surface. Personnel may squat or stand. If the surrounding space is confined or there are overlapping operations, adverse factors must be eliminated before work can proceed. Utility Model Content

[0008] The purpose of this utility model is to provide a sealing component installer and nuclear power plant maintenance equipment to solve the technical problem of low accuracy in manual installation of sealing components in the prior art.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0010] In a first aspect, a seal installer is provided, comprising:

[0011] The device comprises a screw, a wrench holder connected to one end of the screw, a top-mounted connecting seat at the other end of the screw, a nut seat threadedly connected to the screw, a plurality of chains connected to the nut seat, and a fixing seat on one end of the chains opposite to the nut seat; wherein the fixing seat is used to connect to the workpiece to which the seal is to be installed, the wrench holder is connected to a wrench, and the wrench holder is able to drive the screw to rotate around an axis, so that the screw pushes against the top-mounted connecting seat to push the seal into the workpiece.

[0012] By adopting the above technical solution:

[0013] First, the seal can be installed by the operator with a wrench, which reduces the requirements for the operator's experience and skill level;

[0014] Secondly, the operator uses a wrench to move the screw along its own axis, which improves the accuracy of the point and direction of force application when applying pressure to the seal, increases the uniformity of the force on the seal, reduces the possibility of misalignment between the seal and the workpiece, and thus ensures the sealing reliability of the seal.

[0015] Furthermore, the relative movement distance between the screw and the nut seat is highly quantifiable, which improves the accuracy of seal installation;

[0016] Finally, the mounting base is directly installed on the workpiece to complete the installation of the entire seal installer, requiring little operating space and having low operating requirements.

[0017] In one embodiment, the nut seat is provided with a plurality of chains, which are evenly arranged along the circumference of the nut seat, and each chain is provided with a fixing seat.

[0018] In one embodiment, the chain includes a plurality of chain units connected in sequence, each chain unit being selectively connected to a buckle of the fixing base, thereby making the chain length adjustable.

[0019] In one embodiment, the fixing base is a snap-fit ​​structure.

[0020] In one embodiment, the fixing base includes a first connecting portion, a second connecting portion perpendicularly connected to the first connecting portion, and a claw portion perpendicularly connected to the second connecting portion and opposite to the first connecting portion. The first connecting portion is provided with a fixing nut that can extend and retract toward the claw portion. The first connecting portion is connected to the chain. The claw portion and the fixing nut are used to clamp the workpiece together to fix the workpiece.

[0021] In one embodiment, the portion of the fixing nut near the claw is provided with a pressure block.

[0022] In one embodiment, the top-mounted connector is provided with a press-fitting element for press-fitting the seal.

[0023] In one embodiment, a pressure sensor for sensing the pressure of the press-fit component is provided between the press-fit component and the top mounting connector.

[0024] In one embodiment, the press-fit component is a hollow structure.

[0025] Secondly, a nuclear power plant maintenance equipment is provided, including a main body of the nuclear power plant maintenance equipment and the aforementioned sealing component installer, wherein the sealing component installer is compatible with the main body of the nuclear power plant maintenance equipment.

[0026] By adopting the above technical solution, the nuclear power plant maintenance equipment of this embodiment, in addition to having the advantages of the sealing installer in the above embodiments, also has the advantages of simple operation, stable installation process and quantifiable installation results. It can meet the installation and assembly requirements in harsh environments, is suitable for more diverse installation occasions, and can effectively reduce human-caused risks in the assembly process and improve work efficiency. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a cross-sectional view of the sealing installer provided in this embodiment of the utility model.

[0029] Figure 2 This is a top view of the sealing installer provided in this embodiment of the utility model.

[0030] Figure 3 This is a cross-sectional view of the fixing base provided in an embodiment of this utility model.

[0031] The labels for the attached figures are as follows:

[0032] 100. Seal installer; 200. Seal; 300. Workpiece;

[0033] 1. Screw; 2. Wrench holder; 3. Top-mounted connector; 4. Nut holder; 5. Chain; 6. Fixing base; 7. Press-fit component; 8. Pressure sensor;

[0034] 31. Rotating groove; 301. Flange; 51. Chain unit; 60. Buckle; 61. First connecting part; 62. Second connecting part; 63. Claw part; 64. Fixing nut; 65. Pressure block. Detailed Implementation

[0035] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0036] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be located directly on or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component.

[0037] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or the number of technical features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. The specific implementation of this utility model is described in more detail below with reference to specific embodiments:

[0039] like Figure 1 and Figure 2 As shown in the figure, the present invention provides a sealing element installer 100, which is used in the operation of installing a sealing element 200 on a workpiece 300. In this embodiment, the sealing element 200 is an oil seal, also known as a lubricating oil seal. It is a mechanical component used to seal grease (oil is the most common liquid substance in transmission systems, and also refers to general liquid substances). It isolates the lubricated parts in the transmission components from the output parts, preventing lubricating oil leakage.

[0040] The seal installer 100 in this embodiment includes:

[0041] The components include a screw 1, a wrench seat 2 connected to one end of the screw 1, a top-mounted connecting seat 3 located at the other end of the screw 1, a nut seat 4 threadedly connected to the screw 1, multiple chains 5 connected to the nut seat 4, and a fixing seat 6 connected to the chain 5 at the end opposite to the nut seat 4. The fixing seat 6 is used to connect with the workpiece 300 to which the seal 200 is to be installed. The wrench seat 2 can be connected to a wrench and can drive the screw 1 to rotate around its axis, so that the screw 1 pushes against the top-mounted connecting seat 3 to push the seal 200 into the workpiece 300.

[0042] Specifically, screw 1 refers to a rod-shaped component with external threads on its circumferential surface. These external threads are used to engage with the nut seat 4. In this embodiment, screw 1 is an M22 screw, made of alloy steel, which generates pressure through rotation to push the top-mounted connecting seat 3. Screw 1 in this embodiment is made of high-strength steel, exhibiting strong wear resistance and compressive strength, enabling it to withstand long-term high-load operation. The thread design on screw 1 is reasonable, ensuring stability when applying torque and allowing precise control of pressing speed and force. Screw 1 exhibits low friction during rotation, resulting in high operational comfort and reducing reliance on operator physical strength.

[0043] The wrench holder 2 refers to the base component used to connect to the wrench. In this embodiment, the wrench holder 2 is fixedly sleeved on the outer periphery of the screw 1 and is provided with a hexagonal head for engaging a torque wrench. Thus, the torque wrench can be connected to the wrench holder 2 to rotate the screw 1. The wrench holder 2 in this embodiment is designed for high precision, fitting tightly with the screw 1 to ensure that torque is transmitted to the screw 1 without loss. The wrench holder 2 can accommodate standard hexagonal torque wrenches, facilitating replacement and operation. The material of the wrench holder 2 is sturdy and durable, capable of withstanding high torque for extended periods without deformation.

[0044] The top-mounted connecting seat 3 refers to the seat component used for press-fitting the seal 200; the top-mounted connecting seat 3 can apply pressure to the seal 200 under the drive of the screw 1. The top-mounted connecting seat 3 is provided with a rotating groove 31 for accommodating the end of the screw 1. The rotating groove 31 is clearance-fitted with the end of the screw 1, so that the end of the screw 1 can rotate around the axis in the rotating groove 31.

[0045] Nut seat 4 refers to a component used for threaded connection with screw 1; nut seat 4 has a nut hole, the wall of the nut hole has an internal thread that engages with screw 1, and nut seat 4 can move along the axial direction of screw 1.

[0046] Chain 5 refers to the component that connects nut seat 4 and fixing seat 6; there are multiple chains 5.

[0047] The fixed base 6 refers to the component used to connect with the workpiece 300.

[0048] The working principle of the seal installer 100 provided in this embodiment is as follows:

[0049] The operator first places the seal 200 in the mounting groove of the workpiece 300, with the screw 1 applying pressure parallel to the axial direction of the seal 200. The fixing seat 6 is fixed around the workpiece 300, and the fixing seat 6 is connected to the nut seat 4 on the screw 1 by a chain 5. The operator connects a torque wrench to a wrench seat 2 and operates the torque wrench to drive the wrench seat 2 to rotate the screw 1 around its axis. Since the nut seat 4 is limited by the chain 5, it moves along the axial direction of the screw 1 under the rotational force of the screw 1. When the nut seat 4 moves upward along the axial direction of the screw 1, the screw 1 moves downward along its own axial direction, thereby driving the top mounting connecting seat 3 to move downward, so that the top mounting connecting seat 3 abuts against the seal 200, thus installing the seal 200 into the mounting groove of the workpiece 300.

[0050] By adopting the above technical solution:

[0051] First, the operator can install the seal 200 with just a wrench, which reduces the requirements for the operator's experience and skill level;

[0052] Secondly, the operator operates the wrench to move the screw 1 along its own axis, which improves the accuracy of the point and direction of force application when applying pressure to the seal 200, improves the uniformity of force on the seal 200, reduces the possibility of misalignment between the seal 200 and the workpiece 300, and thus ensures the sealing reliability of the seal 200.

[0053] Furthermore, the relative movement distance between the screw 1 and the nut seat 4 is highly quantifiable, which improves the accuracy of the seal 200 installation;

[0054] Finally, the fixing seat 6 is directly installed on the workpiece 300 to realize the installation of the entire sealing installer 100, which requires little operating space and has low operating requirements.

[0055] In one embodiment, the nut seat 4 is provided with a plurality of chains 5, which are evenly arranged along the circumference of the nut seat 4, and each chain 5 is provided with a fixing seat 6.

[0056] Here, it can be understood that the number of chains 5 can be two, three, or four, etc.; when the number of chains 5 is two, the two chains 5 are symmetrically arranged based on the axis of the nut seat 4; when the number of chains 5 is three or four, the multiple chains 5 are evenly arranged along the circumference of the nut seat 4.

[0057] In this embodiment, the edge of the workpiece 300 is a circular flange 301, and multiple fixing seats 6 are evenly arranged along the circular flange 301. A chain 5 is provided between each fixing seat 6 and the nut seat 4, and the lengths of the multiple chains 5 are the same. In this way, when the nut seat 4 moves along the axial direction of the screw 1, since the multiple fixing seats 6 are fixedly connected to the workpiece 300, the fixing seats 6 apply tension to the nut seat 4 through the chains 5, so that the screw 1 can apply a pressure perpendicular to the seal 200 on the seal 200.

[0058] By adopting the above technical solutions, the multiple chain 5 designs provide flexible fixing methods, suitable for various workpieces 300 of different shapes and installation environments, while also improving the uniformity of force on the seal 200.

[0059] In one embodiment, the chain 5 includes a plurality of chain units 51 connected in sequence, each chain unit 51 being selectively connected to the buckle 60 of the fixing seat 6, so that the length of the chain 5 is adjustable.

[0060] Here, it is understood that in order to improve the applicability of the seal installer 100 and enable the seal installer 100 to be used with workpieces 300 of different sizes, the length of the chain 5 is set to be adjustable; specifically, the chain 5 includes multiple chain units 51, and two adjacent chain units 51 are movably connected. The operator can adjust the length of the chain 5 by connecting the chain units 51 in different sequences to the buckles 60 of the fixed base 6.

[0061] By adopting the above technical solution, the applicability of the seal installer 100 is improved.

[0062] In one embodiment, the fixing base 6 is a snap-fit ​​structure.

[0063] Here, it can be understood that the snap-fit ​​structure refers to the structure that is fixed to the workpiece 300 by snap-fit. In this embodiment of the application, the cross-section of the snap-fit ​​structure is "U" shaped, that is, the cross-section of the fixing seat 6 is "U" shaped.

[0064] In this embodiment, the snap-fit ​​structure is fixed to the workpiece 300 to ensure the stability of the device.

[0065] By adopting the above technical solution, the fixing seat 6 is fixed to the workpiece 300 by a snap-fit ​​method, which has high stability.

[0066] In one embodiment, the fixing base 6 includes a first connecting part 61, a second connecting part 62 perpendicularly connected to the first connecting part 61, and a claw part 63 perpendicularly connected to the second connecting part 62 and opposite to the first connecting part 61. The first connecting part 61 is provided with a fixing nut 64 that can extend and retract toward the claw part 63. The first connecting part 61 is connected to the chain 5. The claw part 63 and the fixing nut 64 are used to jointly clamp the workpiece 300 to fix the workpiece 300.

[0067] Here, it can be understood that the first connecting part 61, the second connecting part 62, and the claw part 63 are connected in sequence to form a "U" shaped structure.

[0068] In this embodiment, the fixing seat 6 is configured as a "U" shaped structure, which facilitates fixing the fixing seat 6 to the flange 301 of the workpiece 300. Then, the fixing nut 64 extends out to clamp the flange 301 together with the claw 63, thereby fixing the fixing seat 6.

[0069] By adopting the above technical solution, the fixing base 6 is easy to install and adjust, can be quickly fixed and loosened, is easy to operate, and is conducive to fixing the fixing base 6.

[0070] In this embodiment of the application, the buckle 60 is connected to the first connecting part 61.

[0071] In one embodiment, the portion of the fixing nut 64 near the claw 63 is provided with a pressure block 65.

[0072] Here, it can be understood that the pressure block 65 refers to a component used to prevent damage to the flange 301 of the workpiece 300 when it is set on the fixing nut 64; the pressure block 65 may have a flexible part that can protect the surface of the workpiece 300 when the pressure block 65 is in contact with the workpiece 300.

[0073] By adopting the above technical solution, the protective properties of workpiece 300 are improved.

[0074] In one embodiment, the top-mounted connector 3 is provided with a press-fitting member 7 for press-fitting the seal 200. In this embodiment, the press-fitting member 7 is located on the side of the top-mounted connector 3 opposite to the wrench seat 2.

[0075] The working principle of the press-fit component 7 in this embodiment is as follows:

[0076] The operator first places the seal 200 in the mounting groove of the workpiece 300, then places the press-fitting component 7 on the seal 200, and then connects the top mounting connector 3 of the seal installer 100 to the press-fitting component 7. The axial direction of the screw 1 is parallel to the pressure applied to the seal 200 by the press-fitting component 7. The fixing seat 6 is fixed to the periphery of the workpiece 300, and the fixing seat 6 is connected to the nut seat 4 on the screw 1 by a chain 5. The operator connects a torque wrench to the wrench holder 2 and applies the operating force. The torque wrench drives the wrench seat 2 to rotate the screw 1 around the axis. Since the nut seat 4 is limited by the chain 5, the nut seat 4 moves along the axial direction of the screw 1 under the drive of the rotational force of the screw 1. When the nut seat 4 moves upward along the axial direction of the screw 1, the screw 1 moves downward along its own axial direction, thereby driving the top mounting connecting seat 3 to move downward, so that the top mounting connecting seat 3 abuts against the pressing part 7, and finally the pressing part 7 squeezes the sealing part 200, installing the sealing part 200 into the mounting groove of the workpiece 300.

[0077] Here, it can be understood that the press-fitting component 7 includes a press-fitting body and a rubber gasket wrapped around the press-fitting body; when the press-fitting component 7 presses the seal 200, the above design can reduce damage to the seal 200.

[0078] By adopting the above technical solution, the protective properties of the seal 200 are improved.

[0079] In one embodiment, a pressure sensor for sensing the pressure of the press-fit component 7 is provided between the press-fit component 7 and the top mounting connector 3.

[0080] Here, it can be understood that a pressure sensor is an electronic component used to sense the pressure applied to the seal 200; the pressure sensor can display the applied pressure in real time, enabling precise pressure control; it needs to be calibrated before each use to ensure accurate readings. The pressure sensor is used to monitor the pressure applied during the press-fitting process in real time, ensuring that the operator can accurately control the press-fitting force and avoid damage to the workpiece 300 due to excessive pressure. The pressure value displayed by the sensor helps the operator better control the torque range during operation.

[0081] By adopting the above technical solution, it is possible to ensure that the applied pressure is controllable and to adapt to various different workpiece 300 installation requirements.

[0082] In one embodiment, the press-fit component 7 is a hollow structure.

[0083] By adopting the above technical solution, the press-fitting component 7 can be made lighter, saving the operator's effort and facilitating operation.

[0084] Secondly, a nuclear power plant maintenance equipment is provided, including a main body of the nuclear power plant maintenance equipment and the aforementioned sealing element installer 100, wherein the sealing element installer 100 is compatible with the main body of the nuclear power plant maintenance equipment.

[0085] By adopting the above technical solution, in addition to the advantages of the sealing installer 100 in the above embodiment, the nuclear power plant maintenance equipment in this embodiment also has the advantages of simple operation, stable installation process and quantifiable installation results. It can meet the installation and assembly requirements in harsh environments, is suitable for more diverse installation occasions, can effectively reduce human-caused risks in the assembly process, and improve work efficiency.

[0086] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sealing element installer, characterized in that, include: The package includes a screw, a wrench holder connected to one end of the screw, a top-mounted connecting seat at the other end of the screw, a nut seat threadedly connected to the screw, multiple chains connected to the nut seat, and a fixing seat connected to the chain at the end opposite to the nut seat; wherein the fixing seat is used to connect to the workpiece to which the seal is to be installed, the wrench holder is connected to a wrench, and the wrench holder is able to drive the screw to rotate around an axis, so that the screw pushes against the top-mounted connecting seat to push the seal into the workpiece.

2. The seal installer as claimed in claim 1, characterized in that, The nut seat is provided with a plurality of chains, which are evenly arranged along the circumference of the nut seat, and each chain is provided with a fixing seat.

3. The seal installer as described in claim 2, characterized in that, The chain comprises multiple chain units connected in sequence, each chain unit being selectively connected to a buckle of the fixing base, thereby making the chain length adjustable.

4. The seal installer as claimed in claim 1, characterized in that, The mounting base has a snap-fit ​​structure.

5. The seal installer as described in claim 4, characterized in that, The fixing base includes a first connecting part, a second connecting part perpendicularly connected to the first connecting part, and a claw part perpendicularly connected to the second connecting part and opposite to the first connecting part. The first connecting part is provided with a fixing nut that can extend and retract toward the claw part. The first connecting part is connected to the chain. The claw part and the fixing nut are used to clamp the workpiece together to fix the workpiece.

6. The seal installer as described in claim 5, characterized in that, The portion of the fixing nut near the claw is provided with a pressure block.

7. The seal installer as described in any one of claims 1 to 6, characterized in that, The top-mounted connecting seat is provided with a pressing component for pressing the seal.

8. The seal installer as claimed in claim 7, characterized in that, A pressure sensor for sensing the pressure of the press-fit component is provided between the press-fit component and the top mounting connector.

9. The seal installer as claimed in claim 7, characterized in that, The press-fit component has a hollow structure.

10. A nuclear power plant maintenance equipment, characterized in that, The device includes a main body of nuclear power plant maintenance equipment and a sealing element installer as described in any one of claims 1 to 9, wherein the sealing element installer is compatible with the main body of the nuclear power plant maintenance equipment.

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