Pushing mechanism and high-temperature gas cooled reactor ball passing counter test bed

By designing a push mechanism including a support assembly and a push assembly, combined with a high-temperature air-cooled stacked ball counter test bench, the problem of inability to effectively control the reciprocating movement of graphite balls in the prior art is solved, and the accuracy and reliability verification of counter detection performance is achieved.

CN119713015APending Publication Date: 2025-03-28HUANENG NUCLEAR ENERGY TECH RES INST CO LTD
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Patent Information

Application Number
CN202411481075.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-23
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The existing pushing mechanism and high-temperature air-cooled relay ball counter tests have the problem that the graphite ball cannot effectively control the reciprocating movement through the counter, which affects the accuracy and reliability of the counter detection performance.

Method used

A pushing mechanism is designed, including a support assembly and a pushing assembly. By driving the motor to control the rotation of the rotating part, it drives the push rod to slide reciprocatingly in the limiting part, and realizes the circular motion into reciprocating linear motion. The pushing mechanism is combined with the test bench of the high-temperature air-cooled stacked ball counter, and a cage is provided at the end of the push rod to control the graphite ball to move reciprocatingly inside the counter.

Benefits of technology

Through this pushing mechanism, the reciprocating movement of the graphite balls inside the counter can be effectively controlled, and the accuracy and reliability verification of the counter detection performance can be achieved, and the relevant debugging and testing of the counter can be supported.

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Abstract

The invention relates to the technical field of fuel loading and unloading systems, in particular to a pushing mechanism and a high-temperature gas cooled reactor ball passing counter test bench, comprising a supporting assembly which comprises a supporting platform, a rotating part rotatably arranged on the supporting platform, and a driving motor arranged on the supporting platform and connected with the rotating part, the rotating part is controlled to rotate through the driving motor; the pushing assembly comprises a limiting part arranged on the supporting platform and a pushing rod which is arranged in the limiting part in a sliding mode and connected with the rotating part. According to the pushing mechanism and the high-temperature gas cooled reactor ball passing counter test bench, the end part of the push rod in the pushing mechanism extends into the counter, a plurality of graphite balls are placed in the retainer, and the graphite balls can be controlled to reciprocate in the counter under the reciprocating motion of the push rod, so that the counter is debugged and tested.
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Description

Technical Field

[0001] The invention relates to the technical field of fuel loading and unloading systems, and in particular to a pushing mechanism and a high-temperature gas-cooled reactor ball-passing counter test bench. Background Art

[0002] The fuel loading and unloading system is an important system connected to the primary circuit of the reactor. It mainly performs the functions of loading new fuel into the core, unloading spent fuel from the core, recycling fuel elements back to the core, unloading and stopping the reactor, emptying the core and reloading. The counter is an important process control equipment of the fuel loading and unloading system. Its main function is to detect the passing information of fuel balls and graphite balls in the stainless steel pipes and provide the passing ball information to the superior control system. The counter has the functions of one-way counting and two-way counting, and can count whole balls and broken balls.

[0003] Aiming at the relevant debugging test of the new ball passing counter of the fuel loading and unloading system, the present invention proposes a test bench for the ball passing counter of the high-temperature gas-cooled reactor, which provides conditions for the relevant debugging test of the new ball passing counter of the fuel loading and unloading system and is used to verify the accuracy and reliability of the counter's detection performance. Summary of the invention

[0004] In view of the problems existing in the above-mentioned existing propulsion mechanism and high temperature gas-cooled reactor ball counter test, the present invention is proposed.

[0005] Therefore, one of the objects of the present invention is to provide a pushing mechanism, the purpose of which is to achieve the function of reciprocating movement.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a pushing mechanism, comprising:

[0007] A support assembly, comprising a support platform, a rotating part rotatably disposed on the support platform, and a driving motor disposed on the support platform and connected to the rotating part, wherein the driving motor controls the rotating part to rotate;

[0008] The pushing assembly comprises a limiting portion arranged on the supporting platform, and a pushing rod slidably arranged in the limiting portion and connected to the rotating portion.

[0009] As a preferred solution of the pushing mechanism of the present invention, wherein: the supporting platform comprises legs, and a fixing plate arranged on the legs;

[0010] The rotating part and the driving motor are arranged on the fixing plate.

[0011] As a preferred solution of the pushing mechanism of the present invention, the output end of the driving motor is provided with a connecting piece, and the connecting piece is connected to the rotating part.

[0012] As a preferred solution of the pushing mechanism of the present invention, wherein: the supporting platform further comprises two mounting frames arranged on the fixing plate;

[0013] The limiting portion includes a first limiting member and a second limiting member respectively arranged on the two mounting frames;

[0014] The two ends of the push rod are respectively slidably inserted in the first limiting member and the second limiting member.

[0015] As a preferred solution of the pushing mechanism of the present invention, the first limiting member is made of two rotating wheels with grooves; and the second limiting member is made of a fixed block.

[0016] As a preferred solution of the pushing mechanism of the present invention, the push rod is arranged in a cross shape, and one end is arranged in a square shape and is slidably inserted in the first limiting member, and the other end is arranged in a round shape and is slidably inserted in the second limiting member;

[0017] A sliding groove is provided in the middle of the push rod and is connected to the rotating part.

[0018] As a preferred solution of the pushing mechanism of the present invention, the rotating part includes a gearbox arranged on a fixed plate, a rotating plate arranged at an output end of the gearbox, and an upper limit shaft arranged on the rotating plate;

[0019] The limiting shaft is slidably arranged in the sliding groove;

[0020] The gearbox is connected to the connecting member.

[0021] The beneficial effect of this pushing mechanism is: by driving the output end of the motor to work, the rotating part is driven to rotate, thereby driving the push rod to slide back and forth in the limiting part, and converting the circular motion into reciprocating linear motion.

[0022] Another object of the present invention is to provide a high temperature gas-cooled reactor ball-passing counter test bench, the purpose of which is to control the reciprocating movement of graphite balls through the counter to conduct experiments on the counter.

[0023] In order to solve the above technical problems, the present invention provides the following technical solutions: A high temperature gas-cooled reactor ball counter test bench, including a driving mechanism, and also including;

[0024] A counting assembly, comprising a support frame, a mounting box disposed on the support frame, and a counter disposed inside the mounting box;

[0025] The push rod end is provided with a retaining frame;

[0026] The retaining frame is slidably inserted in the counter.

[0027] As a preferred solution of the high-temperature gas-cooled reactor ball-passing counter test bench of the present invention, the installation box can be made of a heating device, and the counter is installed inside the heating equipment.

[0028] As a preferred solution of the high temperature gas-cooled reactor ball counter test bench of the present invention, a vibration motor is provided at the bottom of the support frame.

[0029] The beneficial effects of the present invention are as follows: the end of the push rod in the pushing mechanism is extended into the interior of the counter, a plurality of graphite balls are placed in the retaining frame, and the graphite balls can be controlled to move back and forth inside the counter under the reciprocating motion of the push rod, thereby debugging and testing the counter. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0031] Figure 1 It is a schematic diagram of the overall structure of the pushing mechanism of the present invention.

[0032] Figure 2 It is a schematic structural diagram of the rotating part of the pushing mechanism of the present invention.

[0033] Figure 3 It is a schematic diagram of the push rod structure of the pushing mechanism of the present invention.

[0034] Figure 4 It is a schematic diagram of the overall structure of the high temperature gas-cooled reactor ball counter test bench of the present invention.

[0035] Figure 5 The present invention is a schematic diagram of the retaining frame structure of the high temperature gas-cooled reactor ball counter test bench. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0039] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0040] Example 1, reference Figure 1-Figure 3 , which is the first embodiment of the present invention, provides a pushing mechanism, which includes a supporting component 100 and a pushing component 200.

[0041] The support assembly 100 includes a support platform 101 , a rotating portion 102 rotatably disposed on the support platform 101 , and a driving motor 103 disposed on the support platform 101 and connected to the rotating portion 102 , and the rotating portion 102 is controlled to rotate by the driving motor 103 .

[0042] The supporting platform 101 includes a support leg 101a and a fixing plate 101b disposed on the support leg 101a; the rotating part 102 and the driving motor 103 are disposed on the fixing plate 101b, and the driving motor 103 can drive the rotating part 102 to rotate.

[0043] The output end of the driving motor 103 is equipped with a connecting piece 103a, and the connecting piece 103a is connected to the rotating part 102; the rotating part 102 includes a gearbox 102a arranged on the fixed plate 101b, and a rotating plate 102b arranged at the output end of the gearbox 102a. The rotating shaft on the gearbox 102a and the driving motor 103 are fixed by the connecting piece 103a. The connecting piece 103a realizes the docking and fixing of the driving shaft and the rotating shaft of the driving motor 103. When the driving motor 103 rotates, it can drive the connecting piece 103a and the gearbox 102a to work, so that the output end of the gearbox 102a drives the rotating plate 102b to rotate.

[0044] The pushing assembly 200 includes a limiting portion 201 disposed on the supporting platform 101, and a push rod 202 slidably disposed in the limiting portion 201 and connected to the rotating portion 102;

[0045] Furthermore, the support platform 101 further includes two mounting frames 101c disposed on the fixing plate 101b;

[0046] The limiting portion 201 includes a first limiting piece 201a and a second limiting piece 201b respectively arranged on two mounting frames 101c; both ends of the push rod 202 are respectively slidably inserted in the first limiting piece 201a and the second limiting piece 201b; the cross-section of the push rod 202 slidably arranged in the first limiting piece 201a is square, and the push rod 202 arranged in a square shape can limit the push rod 202 in the first limiting piece 201a so that it can only slide.

[0047] The rotating plate 102b is located between the two mounting frames 101c, and the push rod 202 is cross-shaped. A slide groove 202a is provided at the center of the cross of the push rod 202, and the connecting line of the slide groove 202a and the first limiting member 201a and the second limiting member 201b is vertically arranged. At the same time, a limiting shaft 102c is also provided on the rotating plate 102b.

[0048] The limit shaft 102c is inserted into the slide groove 202a. When the limit shaft 102c rotates with the rotating plate 102b, the limit shaft 102c can be decomposed into reciprocating movement in the first direction and reciprocating movement in the second direction. The first direction and the second direction are perpendicular. When the limit shaft 102c moves in the first direction, it can drive the push rod 202 to move back and forth. When the limit shaft 102c moves back and forth in the second direction, it will move in the slide groove 202a and will not control the push rod 202, ensuring that the push rod 202 can only reciprocate in the first direction.

[0049] During use, the driving motor 103 rotates, and drives the rotating plate 102b and the limiting shaft 102c to perform circular motion through the connecting member 103a and the gearbox 102a. The limiting shaft 102c in circular motion can drive the push rod 202 to reciprocate along the first direction.

[0050] Example 2, reference Figure 3 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that one end of the push rod 202 is set to be square and slidably inserted in the first limit member 201a, and the other end is set to be round and slidably inserted in the second limit member 201b.

[0051] The first limiting member 201a is made of two rotating wheels with grooves; the second limiting member 201b is made of a fixed block, wherein the two rotating wheels are opposite to each other, and the grooves therein are combined to form a plug-in space for the end of the push rod 202. At this time, the square push rod 202 can be restricted by the two rotating wheels, so that the push rod 202 can only move along the rotation direction of the rotating wheels, thereby limiting the push rod 202. At the same time, the setting of the rotating wheels can reduce the friction force on the push rod 202 when it moves;

[0052] Furthermore, the second limit member 201b is made of a fixed block, and the end of the push rod 202 is round and inserted into the fixed block. The setting of the fixed block can reduce costs, and the round push rod 202 can be easily processed and reduce friction.

[0053] The remaining structures are the same as those of Example 1.

[0054] Example 3, reference Figure 4 and Figure 5 , which is the third embodiment of the present invention, provides a high-temperature gas-cooled reactor ball counter test bench, which includes a driving mechanism and a counting component 300.

[0055] The counting assembly 300 includes a support frame 301 , a mounting box 302 disposed on the support frame 301 , and a counter 303 disposed inside the mounting box 302 . A ball passage is disposed in the middle of the mounting box 302 and the counter 303 .

[0056] Further, a holder 203 is provided at the end of the push rod 202; the holder 203 is slidably inserted into the ball passage in the counter 303, wherein the holder 203 is provided with a receiving space, and the receiving space is provided with an elastic extrusion plate 203a, a graphite ball is placed in the holder 203, and is squeezed and fixed by the extrusion plate 203a, so that the graphite ball is fixed in the holder 203, wherein the holder 203 is made of non-conductive material. (Preferably, high temperature resistant Teflon material, because conductive materials will generate eddy currents in the alternating magnetic field, affecting the counter measurement).

[0057] Alternatively, a plurality of receiving grooves are provided in the retaining frame 203 , and a graphite ball can be embedded even if there is no receiving groove. By embedding the graphite ball in the receiving groove, the graphite ball is fixed in the retaining frame 203 .

[0058] At least five graphite balls can be fixed in the retaining frame 203 .

[0059] When in use, fix the graphite ball in the retaining frame 203, and then put the retaining frame 203 into the counter 303. The driving motor 103 drives the rotating plate 102b and the limiting shaft 102c to rotate, thereby driving the push rod 202 and the retaining frame 203 to drive the graphite ball to move back and forth in the counter 303, so that the graphite ball reciprocates through the counter 303, and is recognized and counted by the counter 303, thereby realizing the relevant debugging and testing of the ball counter 303.

[0060] When the rotating plate 102b controls the push rod 202 to move back and forth, the push rod 202 controls the graphite ball to pass through the coil of the counter 303 at a speed of 0.01 to 5.0 m / s, and the preferred speed range is 0.1 to 2.0 m / s;

[0061] Furthermore, the installation box 302 can be made of a heating device, and the counter 303 thereof is installed inside the heating device, so that the temperature inside the ball passage pipe of the counter 303 is adjustable within a temperature range of room temperature to 250°C.

[0062] Furthermore, a vibration motor 400 is provided at the bottom of the support frame 301 , and the vibration frequency is 10 to 100 Hz, so as to test the ability of the counter 303 to shake and pass the ball.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A pushing mechanism, characterized in that: include, A support assembly (100), comprising a support platform (101), a rotating part (102) rotatably arranged on the support platform (101), and a driving motor (103) arranged on the support platform (101) and connected to the rotating part (102), wherein the rotating part (102) is controlled to rotate by the driving motor (103); The pushing assembly (200) comprises a limiting portion (201) arranged on the supporting platform (101), and a pushing rod (202) slidably arranged in the limiting portion (201) and connected to the rotating portion (102).

2. The pushing mechanism according to claim 1, characterized in that: The supporting platform (101) comprises a supporting leg (101a) and a fixing plate (101b) arranged on the supporting leg (101a); The rotating part (102) and the driving motor (103) are arranged on the fixing plate (101b).

3. The pushing mechanism according to claim 2, characterized in that: The output end of the driving motor (103) is provided with a connecting piece (103a), and the connecting piece (103a) is connected to the rotating part (102).

4. The pushing mechanism according to claim 3, characterized in that: The supporting platform (101) further comprises two mounting frames (101c) arranged on the fixing plate (101b); The limiting portion (201) comprises a first limiting member (201a) and a second limiting member (201b) which are respectively arranged on the two mounting frames (101c); Two ends of the push rod (202) are respectively slidably inserted into the first limiting member (201a) and the second limiting member (201b).

5. The pushing mechanism according to claim 4, characterized in that: The first limiting member (201a) is made of two rotating wheels with grooves; and the second limiting member (201b) is made of a fixed block.

6. The pushing mechanism according to claim 5, characterized in that: The push rod (202) is arranged in a cross shape, and one end is arranged in a square shape and is slidably inserted in the first limiting member (201a), and the other end is arranged in a round shape and is slidably inserted in the second limiting member (201b); A sliding groove (202a) is provided in the middle of the push rod (202) and is connected to the rotating part (102).

7. The pushing mechanism according to claim 6, characterized in that: The rotating part (102) comprises a gearbox (102a) arranged on a fixed plate (101b), a rotating plate (102b) arranged at the output end of the gearbox (102a), and an upper limit shaft (102c) arranged on the rotating plate (102b); The limiting shaft (102c) is slidably disposed in the sliding groove (202a); The gearbox (102a) is connected to the connecting member (103a).

8. A high temperature gas-cooled reactor ball counter test bench, characterized in that: It comprises the pushing mechanism as described in any one of claims 1 to 7, and further comprises: A counting assembly (300) comprising a support frame (301), a mounting box (302) disposed on the support frame (301), and a counter (303) disposed inside the mounting box (302); A retaining frame (203) is provided at the end of the push rod (202); The retaining frame (203) is slidably inserted into the counter (303).

9. The high temperature gas-cooled reactor ball counter test bench according to claim 8, characterized in that: The installation box (302) can be made of a heating device, and the counter (303) is installed inside the heating equipment.

10. The high temperature gas-cooled reactor ball counter test bench according to claim 8 or 9, characterized in that: A vibration motor (400) is provided at the bottom of the support frame (301).