Supporting roller positioning tool

By designing a support roller positioning fixture, including positioning and limiting components, the problem of misalignment between the top cover and the support roller caused by human error was solved, thus improving the accuracy and efficiency of nuclear reactor installation.

CN224248311UActive Publication Date: 2026-05-15CHINA NUCLEAR IND 23 CONSTR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA NUCLEAR IND 23 CONSTR
Filing Date
2025-05-27
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

During the installation of existing nuclear reactors, human error can cause misalignment between the top cover plate and the supporting rollers, affecting installation accuracy and efficiency.

Method used

A support roller positioning fixture was designed, including a support roller, an upper cover plate, a lower cover plate, a positioning component, and a limiting component. Through the cooperation of the positioning component and the limiting component, the relative displacement between the upper cover plate and the support roller is prevented, ensuring installation accuracy and efficiency.

Benefits of technology

It effectively prevents the misalignment between the top cover plate and the supporting rollers, ensuring installation accuracy and overall efficiency, reducing construction difficulty, and improving installation stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of nuclear reactor installation, in particular to a supporting roller positioning tool which comprises a supporting roller, an upper cover plate, a lower cover plate, a positioning assembly and a limiting assembly. An upper cover plate and a lower cover plate are arranged on the two sides of the supporting pin rollers respectively and are parallel to each other. The two ends of the positioning assembly are fixedly arranged on the side walls, located on the same side, of the upper cover plate and the lower cover plate respectively, the limiting assembly is arranged on the face, facing the supporting pin rollers, of the positioning assembly, and the face, away from the positioning assembly, of the limiting assembly is attached to the outer walls of the supporting pin rollers. According to the supporting pin roller positioning tool, relative deviation among the upper cover plate, the lower cover plate and the supporting pin roller can be completely avoided through the positioning assembly and the limiting assembly, so that the overall efficiency of subsequent installation procedures carried out on the upper surface of the upper cover plate can be guaranteed, and meanwhile the installation precision can be guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of nuclear reactor installation technology, specifically to a support roller positioning fixture. Background Technology

[0002] During the installation of existing nuclear reactors, the support structure for the metal core shell needs to be precisely aligned and fixed to ensure the stability and safety of the nuclear reactor.

[0003] The support structure includes an upper cover plate, a lower cover plate, and support rollers. The upper and lower cover plates are located on the upper and lower sides of the support rollers. The current installation method involves manually fixing the relative positions of the upper cover plate, lower cover plate, and support rollers, and then installing the remaining components on the upper cover plate. This method is prone to errors due to human error, which can cause the upper cover plate and support rollers to shift, resulting in mistakes and reducing the overall installation efficiency. Utility Model Content

[0004] (I) This utility model provides a support roller positioning fixture to alleviate the technical problem in the prior art where the upper cover plate and the support roller are misaligned due to human error.

[0005] (II) Technical Solution

[0006] To solve the above-mentioned technical problems, embodiments of this utility model provide a support roller positioning fixture, including a support roller, an upper cover plate, a lower cover plate, a positioning component, and a limiting component;

[0007] The upper cover plate and the lower cover plate are respectively provided on both sides of the supporting roller, and the upper cover plate and the lower cover plate are parallel to each other;

[0008] The two ends of the positioning component are respectively fixed to the sidewalls of the upper cover plate and the lower cover plate on the same side. The limiting component is located on the side of the positioning component facing the support roller, and the side of the limiting component away from the positioning component is in contact with the outer wall of the support roller.

[0009] Furthermore, the positioning component includes an anti-movement baffle and a fixing element;

[0010] The two ends of the anti-movement baffle are respectively attached to the side wall of the upper cover plate and the lower cover plate on the same side. The fixing member passes through the side wall of the anti-movement baffle and the upper cover plate or the lower cover plate in sequence to fix the upper cover plate and the lower cover plate to the anti-movement baffle.

[0011] Furthermore, the fastener includes a first screw and a second screw, the first screw passing through the anti-movement baffle and the upper cover plate in sequence, and the second screw passing through the anti-movement baffle and the lower cover plate in sequence.

[0012] Furthermore, the anti-moving baffle is provided with a first mounting hole and a second mounting hole at both ends, the upper cover plate is provided with a first screw hole corresponding to the first mounting hole, and the lower cover plate is provided with a second screw hole corresponding to the second mounting hole. The first screw passes through the first mounting hole and the first screw hole in sequence, and the second screw passes through the second mounting hole and the second screw hole in sequence.

[0013] Furthermore, the limiting component includes a stop block, which is fixed to the anti-movement baffle, and the side of the stop block facing away from the anti-movement baffle is in contact with the support roller.

[0014] Furthermore, the limiting component also includes a limiting member that passes through the anti-movement baffle and the stop block in sequence to fix the stop block to the anti-movement baffle.

[0015] Furthermore, the anti-movement baffle is provided with a third mounting hole, the stop block is provided with a third screw hole, and the limiting member passes through the third mounting hole and the third screw hole in sequence.

[0016] Furthermore, the limiting element is a third screw.

[0017] Furthermore, the side of the stop block facing the supporting roller is provided with an anti-slip pad.

[0018] Furthermore, the anti-slip mat is provided with anti-slip stripes.

[0019] The beneficial effects of this utility model are:

[0020] This utility model provides a support roller positioning fixture, including a support roller, an upper cover plate, a lower cover plate, a positioning component, and a limiting component. The support roller has an upper cover plate and a lower cover plate on both sides, and the upper and lower cover plates are parallel to each other. The upper cover plate is used to install other components on its upper surface, and the lower cover plate is used to place on a fixed surface. A positioning component is fixed to the sidewall of the upper and lower cover plates on the same side to prevent the upper and lower cover plates from shifting relative to the support roller. Simultaneously, a limiting component is provided on the side of the positioning component facing the support roller. The side of the limiting component facing away from the positioning component is in contact with the outer wall of the support roller to prevent the support roller from rolling. Thus, the positioning component and the limiting component completely prevent relative shift between the upper and lower cover plates and the support roller, ensuring the overall efficiency of subsequent installation processes on the upper cover plate surface and guaranteeing installation accuracy. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of a support roller positioning fixture provided in an embodiment of the present utility model.

[0023] icon:

[0024] 100 - Support roller; 101 - Upper cover plate; 102 - Lower cover plate;

[0025] 200 - Anti-movement baffle; 201 - First screw; 202 - Second screw;

[0026] 300 - Stop; 301 - Third screw. Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] like Figure 1 As shown, this utility model provides a support roller positioning fixture, including a support roller 100, an upper cover plate 101, a lower cover plate 102, a positioning component, and a limiting component;

[0031] The support roller 100 is provided with an upper cover plate 101 and a lower cover plate 102 on both sides, and the upper cover plate 101 and the lower cover plate 102 are parallel to each other;

[0032] The two ends of the positioning component are respectively fixed to the sidewalls of the upper cover plate 101 and the lower cover plate 102 on the same side. The limiting component is located on the side of the positioning component facing the supporting roller 100, and the side of the limiting component away from the positioning component is in contact with the outer wall of the supporting roller 100.

[0033] In this embodiment, the support roller positioning fixture includes a support roller 100, an upper cover plate 101, a lower cover plate 102, a positioning component, and a limiting component. The support roller 100 has an upper cover plate 101 and a lower cover plate 102 on both sides, and the upper cover plate 101 and the lower cover plate 102 are parallel to each other. The upper cover plate 101 is used to mount other components on its upper surface, and the lower cover plate 102 is used to be placed on a fixed surface. A positioning component is fixed to the sidewalls of the upper cover plate 101 and the lower cover plate 102 on the same side, preventing the upper cover plate 101 and the lower cover plate 102 from moving apart. The upper cover plate 101 and lower cover plate 102 are offset relative to the support roller 100. At the same time, a limiting component is provided on the side of the positioning component facing the support roller 100. The side of the limiting component away from the positioning component is in contact with the outer wall of the support roller 100 to prevent the support roller 100 from rolling. Thus, the positioning component and the limiting component can completely avoid relative offset between the upper cover plate 101, the lower cover plate 102 and the support roller 100, thereby ensuring the overall efficiency of the subsequent installation process on the upper surface of the upper cover plate 101, and also ensuring the installation accuracy.

[0034] The upper cover plate 101 and the lower cover plate 102 are arranged radially opposite to each other along the support roller 100, thereby achieving the effect that the upper cover plate 101 and the lower cover plate 102 are parallel to each other.

[0035] According to one embodiment provided by this utility model, such as Figure 1 As shown, the positioning assembly includes an anti-movement baffle 200 and a fixing member;

[0036] The two ends of the anti-moving baffle 200 are respectively attached to the side wall of the upper cover plate 101 and the lower cover plate 102 on the same side. The fastener passes through the anti-moving baffle 200 and the side wall of the upper cover plate 101 or the lower cover plate 102 in sequence to fix the upper cover plate 101 and the lower cover plate 102 to the anti-moving baffle 200.

[0037] In this embodiment, the two ends of the anti-movement baffle 200 are respectively attached to the side walls of the upper cover plate 101 and the lower cover plate 102 on the same side by fasteners, thereby fixing the relative positions of the anti-movement baffle 200, the upper cover plate 101, and the lower cover plate 102 to prevent the upper cover plate 101 and the lower cover plate 102 from sliding relative to the support roller 100, thereby reducing the construction difficulty of the installation work above the upper cover plate 101 and ensuring the stability of the structure.

[0038] According to one embodiment provided by this utility model, such as Figure 1 As shown, the fastener includes a first screw 201 and a second screw 202. The first screw 201 passes through the anti-movement baffle 200 and the upper cover plate 101 in sequence, and the second screw 202 passes through the anti-movement baffle 200 and the lower cover plate 102 in sequence.

[0039] In this embodiment, the anti-movement baffle 200 is fixed at one end facing the upper cover plate 101 by a first screw 201, and at the other end facing the lower cover plate 102 by a second screw 202. That is, both ends of the anti-movement baffle 200 are fixed to the upper cover plate 101 and the lower cover plate 102 by the first screw 201 and the second screw 202, respectively, to ensure that the upper cover plate 101 and the lower cover plate 102 will not slide relative to the support roller 100.

[0040] Of course, the fasteners can also be bolts, pins, or other parts that can fix the anti-moving baffle 200, the upper cover plate 101, and the lower cover plate 102. Their purpose has not deviated from the design concept of this utility model and should be within the protection scope of this utility model.

[0041] According to one embodiment provided by this utility model, such as Figure 1 As shown, the anti-moving baffle 200 has a first mounting hole and a second mounting hole at both ends, the upper cover plate 101 has a first screw hole corresponding to the first mounting hole, and the lower cover plate 102 has a second screw hole corresponding to the second mounting hole. The first screw 201 passes through the first mounting hole and the first screw hole in sequence, and the second screw 202 passes through the second mounting hole and the second screw hole in sequence.

[0042] In this embodiment, the anti-moving baffle 200 has a first mounting hole at one end facing the upper cover plate 101, and a first screw hole is provided at the position opposite to the first mounting hole on the upper cover plate 101. The first screw 201 can pass through the first mounting hole and the first screw hole in sequence to fix the end of the anti-moving baffle 200 to the upper cover plate 101. Similarly, the anti-moving baffle 200 has a second mounting hole at one end facing the lower cover plate 102, and a second screw hole is provided at the position opposite to the second mounting hole on the lower cover plate 102. The second screw 202 can pass through the second mounting hole and the second screw hole in sequence to fix the end of the anti-moving baffle 200 to the lower cover plate 102.

[0043] According to one embodiment provided by this utility model, such as Figure 1 As shown, the limiting component includes a stop 300, which is fixed to the anti-movement baffle 200. The side of the stop 300 facing away from the anti-movement baffle 200 is in contact with the support roller 100.

[0044] In this embodiment, the baffle is fixed on the side of the movable baffle facing the support roller 100. At the same time, the side of the stop block 300 away from the anti-movement baffle 200 is in contact with the support roller 100. The baffle can prevent the support roller 100 from rolling, and further ensure that the upper cover plate 101 and the lower cover plate 102 will not slide relative to the support roller 100.

[0045] According to one embodiment provided by this utility model, such as Figure 1 As shown, the limiting assembly also includes a limiting member that passes through the anti-movement baffle 200 and the stop block 300 in sequence to fix the stop block 300 to the anti-movement baffle 200.

[0046] In this embodiment, the stop block 300 is fixed to the anti-movement baffle 200 by a limiting member. That is to say, the end of the limiting member passes through the anti-movement baffle 200 and the stop block 300 in sequence to fix the two together.

[0047] According to one embodiment provided by this utility model, such as Figure 1 As shown, the anti-movement baffle 200 is provided with a third mounting hole, the stop block 300 is provided with a third screw hole, and the limiting member passes through the third mounting hole and the third screw hole in sequence.

[0048] In this embodiment, a third mounting hole is provided in the central area of ​​the anti-movement block 300, and a third screw hole is provided at the position corresponding to the third mounting hole on the block 300. The limiting member passes through the third mounting hole and the third screw hole in sequence to fix the block 300 on the anti-movement baffle 200, thereby preventing the support roller 100 from rolling.

[0049] According to one embodiment provided by this utility model, such as Figure 1 As shown, the limiting component is the third screw 301.

[0050] In this embodiment, optionally, the limiting member can also be replaced by bolts, pins or other parts that can fix the anti-moving baffle 200 and the stop block 300. The purpose is not different from the design concept of this utility model and should be within the protection scope of this utility model.

[0051] According to one embodiment of the present invention, the side of the stop block 300 facing the support roller 100 is provided with an anti-slip pad.

[0052] In this embodiment, an anti-slip pad is provided on the side of the stop block 300 facing the support roller 100. The anti-slip pad is used to make the stop block 300 fit against the side wall of the support roller 100 to ensure that the support roller 100 will not roll, thus ensuring the installation stability of the installation process performed on the upper surface of the upper cover plate 101.

[0053] According to one embodiment of the present invention, the anti-slip mat is provided with anti-slip stripes.

[0054] In this embodiment, the anti-slip pad has anti-slip stripes on the side facing the support roller 100. The anti-slip stripes can increase the friction between the anti-slip pad and the side wall of the support roller 100, further preventing the support roller 100 from rolling.

[0055] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A support roller positioning fixture, characterized in that, It includes support rollers (100), upper cover plate (101), lower cover plate (102), positioning components and limiting components; The upper cover plate (101) and the lower cover plate (102) are respectively provided on both sides of the support roller (100), and the upper cover plate (101) and the lower cover plate (102) are parallel to each other; The two ends of the positioning component are respectively fixed to the sidewalls of the upper cover plate (101) and the lower cover plate (102) on the same side. The limiting component is located on the side of the positioning component facing the support roller (100), and the side of the limiting component away from the positioning component is in contact with the outer wall of the support roller (100).

2. The support roller positioning fixture according to claim 1, characterized in that, The positioning component includes an anti-movement baffle (200) and a fixing element; The two ends of the anti-moving baffle (200) are respectively attached to the side walls of the upper cover plate (101) and the lower cover plate (102) on the same side. The fixing member passes through the side wall of the anti-moving baffle (200) and the upper cover plate (101) or the lower cover plate (102) in sequence to fix the upper cover plate (101) and the lower cover plate (102) to the anti-moving baffle (200).

3. The support roller positioning fixture according to claim 2, characterized in that, The fastener includes a first screw (201) and a second screw (202). The first screw (201) passes through the anti-movement baffle (200) and the upper cover plate (101) in sequence, and the second screw (202) passes through the anti-movement baffle (200) and the lower cover plate (102) in sequence.

4. The support roller positioning fixture according to claim 3, characterized in that, The anti-moving baffle (200) has a first mounting hole and a second mounting hole at both ends, the upper cover plate (101) has a first screw hole corresponding to the first mounting hole, and the lower cover plate (102) has a second screw hole corresponding to the second mounting hole. The first screw (201) passes through the first mounting hole and the first screw hole in sequence, and the second screw (202) passes through the second mounting hole and the second screw hole in sequence.

5. The support roller positioning fixture according to claim 2, characterized in that, The limiting component includes a stop (300), which is fixed to the anti-movement baffle (200). The side of the stop (300) facing away from the anti-movement baffle (200) is in contact with the support roller (100).

6. The support roller positioning fixture according to claim 5, characterized in that, The limiting component further includes a limiting member that passes through the anti-movement baffle (200) and the stop block (300) in sequence to fix the stop block (300) to the anti-movement baffle (200).

7. The support roller positioning fixture according to claim 6, characterized in that, The anti-movement baffle (200) is provided with a third mounting hole, the stop block (300) is provided with a third screw hole, and the limiting member passes through the third mounting hole and the third screw hole in sequence.

8. The support roller positioning fixture according to claim 7, characterized in that, The limiting component is the third screw (301).

9. The support roller positioning fixture according to claim 5, characterized in that, The side of the stop block (300) facing the support roller (100) is provided with an anti-slip pad.

10. The support roller positioning fixture according to claim 9, characterized in that, The anti-slip mat has anti-slip stripes.