CN216686045U

CN216686045U - Chain wheel device for fuel rod transmission

Info

Publication number: CN216686045U
Application number: CN202122874446.5U
Authority: CN
Inventors: 黄帆; 陈凯; 王章波; 王诗瑞; 刘学镭; 王苹; 徐超; 于文昕; 左梦洁; 祝琴; 王清平
Original assignee: China Jianzhong Nuclear Fuel Co Ltd
Current assignee: China Jianzhong Nuclear Fuel Co Ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-06-07
Anticipated expiration: 2031-11-23

Abstract

The utility model belongs to the field of machinery, and particularly relates to a chain wheel device for fuel rod transmission. The base is connected with a supporting aluminum type material rack; the supporting aluminum type material frame is connected with a connecting plate; the aluminum-type material frame is provided with a motor mounting seat, and the motor mounting seat is connected with a motor; be equipped with the sprocket mounting panel on the aluminium alloy work or material rest, the sprocket mounting panel links to each other with aluminium type material frame and sprocket respectively, and the bearing frame links to each other with the aluminium alloy work or material rest, and the bearing frame links to each other with the axle, and the axle links to each other with bearing frame and driving sprocket respectively, and the motor sprocket links to each other with the motor, and the motor sprocket passes through chain and sprocket cooperation. The utility model has the beneficial effects that: (1) the single-time transmission efficiency of the fuel rod is improved by at least 2 times; (2) the device designed by the chain wheel structure can also be used for transmitting fuel rods; (3) the surface of the fuel rod is not newly damaged or marked after being transmitted by the chain wheel device.

Description

Chain wheel device for fuel rod transmission

Technical Field

The utility model belongs to the field of machinery, and particularly relates to a chain wheel device for fuel rod transmission.

Background

In foreign countries such as Spain, Russia and other countries, many groups of wheels are used to transmit empty tubes or solid tubes of fuel rods, and in some countries such as France, Germany, and America, a belt transmission mode is currently used as an auxiliary feeding mechanism of a neutron source detection device.

Since the basic industry in China, a large number of transmission modes of belt pulleys are used all the time, the belt pulleys are mainly used for mining coal, petroleum or other industrial metallurgical products at first, and in the last decade, along with the popularization of automation, the light industry gradually starts to adopt belt pulley transmission, particularly production lines with higher automation degree and production sites with worse environment. At present, nuclear fuel element manufacturers mainly adopt a mode of a plurality of groups of wheel systems in the process of conveying fuel rods. Due to the limitation of the structure, the structure of the multi-group wheel system is adopted, only one fuel rod is transmitted at a time, the efficiency is low, and therefore, a set of chain wheel device needs to be designed for improving the transmission efficiency of the fuel rods.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a chain wheel device for fuel rod transmission, which can solve the problem of low single transmission efficiency (1 pin/time) of fuel rods.

The technical scheme of the utility model is as follows: the chain wheel device for fuel rod transmission comprises a base, an aluminum material, a connecting plate, a motor mounting seat, a chain wheel mounting plate, a bearing seat, a shaft, a motor chain wheel, a motor, a chain wheel, a transmission chain wheel, a housing supporting plate, a lower housing, an upper housing, a hinge, a chain, a conveying plate, a sliding rail, a chain supporting rail, a bearing, a pin shaft, a supporting frame and a connecting piece;

the base is connected with an aluminum-type material supporting frame;

the supporting aluminum type material frame is connected with a connecting plate;

the aluminum-type material frame is provided with a motor mounting seat, and the motor mounting seat is connected with a motor;

the chain wheel mounting plate is arranged on the aluminum profile material rack and is respectively connected with the aluminum profile material rack and the chain wheel, the bearing seat is connected with the aluminum profile material rack and is connected with a shaft, the shaft is respectively connected with the bearing seat and the transmission chain wheel, the motor chain wheel is connected with a motor, and the motor chain wheel is matched with the chain wheel through a chain;

the housing support plate is used for fixing the lower housing or the upper housing on the aluminum type material frame;

the chain is contacted with the chain support rail and is connected with the connecting piece;

the transport plate is connected with the fuel rods, the slide rail is fixed on the aluminum type material frame,

a bearing is arranged on the sliding rail;

the pin shaft is connected with the nut, the pin shaft is respectively connected with the bearing and the supporting frame,

the fastening screw is used for connecting the transport plate, the support frame and the connecting piece together.

The fixed base is fixed on the ground through foundation bolts.

The base is connected with the aluminum profile material rack through a screw, and a spring washer and a flat washer are arranged between the screw and the aluminum profile material rack.

The aluminum material rack is connected with the bolt through a thread structure, and the bolt is used for connecting the connecting plate with the aluminum material rack.

The fastening screw is respectively connected with the transport plate, the support frame and the connecting piece through a thread structure.

The support frame is used for supporting and fixing the transport plate and is of a U-shaped structure so as to ensure that the bearing can stably move in the sliding rail.

The support frame is connected with the set screw through a thread structure.

The connecting piece is connected with the chain through tolerance fit, and the connecting piece is connected with the set screw through a thread structure.

The hinge is provided with a compression spring and a cover shell knob.

The cover shell supporting plate is connected with the lower cover shell, the upper cover shell and the hinge through the hinge structure respectively, and the cover shell supporting plate is pressed by the cover shell knob.

The utility model has the beneficial effects that: (1) the single-time transmission efficiency of the fuel rod is improved by at least 2 times; (2) the device designed by the chain wheel structure can also be used for transmitting fuel rods; (3) the surface of the fuel rod is not newly damaged or scratched after being transmitted by the chain wheel device.

Drawings

FIG. 1 is a front view of a fuel rod transfer sprocket assembly according to the present invention;

FIG. 2 is a left side view of a fuel rod transferring sprocket assembly according to the present invention;

FIG. 3 is a left side view (partially enlarged) of the fuel rod transfer sprocket assembly provided in the present invention;

fig. 4 is a front view (partially enlarged) of the fuel rod transfer sprocket apparatus provided in the present invention.

In the figure: the fuel rod comprises a base 1, an aluminum material frame 2, anchor bolts 3, screws 4, spring washers 5, flat washers 6, bolts 7, connecting plates 8, a motor mounting seat 9, a sprocket mounting plate 10, a bearing seat 11, a shaft 12, a motor sprocket 13, a motor 14, a sprocket 15, a transmission sprocket 16, a housing support plate 17, a housing lower housing 18, an upper housing 19, a hinge 20, a housing knob 21, a compression spring 22, a chain 23, a transport plate 24, a slide rail 25, a chain support rail 26, a bearing 27, a pin shaft 28, a nut 29, a set screw 30, a support frame 31, a connecting piece 32 and a fuel rod 33.

Detailed Description

The utility model is described in further detail below with reference to the figures and the embodiments.

As shown in fig. 1 to 4, the sprocket device for fuel rod transmission includes a base 1, an aluminum frame 2, an anchor bolt 3, a screw 4, a spring washer 5, a flat washer 6, a bolt 7, a connecting plate 8, a motor mounting seat 9, a sprocket mounting plate 10, a bearing seat 11, a shaft 12, a motor sprocket 13, a motor 14, a sprocket 15, a transmission sprocket 16, a housing support plate 17, a lower housing 18, an upper housing 19, a hinge 20, a housing knob 21, a compression spring 22, a chain 23, a transport plate 24, a slide rail 25, a chain support rail 26, a bearing 27, a pin 28, a nut 29, a set screw 30, a support frame 31, and a connecting member 32.

The base 1 is used for fixing and supporting the aluminum profile material rack 2, and the aluminum profile material rack 2 is fixed through the base 1. The base 1 receives the packing force of rag bolt 3, plain washer 6 respectively, and the base 1 exerts the holding power to aluminium alloy work or material rest 2. The aluminum profile rack 2 is a frame of the whole device and is provided with other parts fixed on the aluminum profile rack 2. The aluminum profile material rack 2 is supported by the base 1, and the aluminum profile material rack 2 is respectively connected with the screw 4, the bolt 7, the motor mounting seat 9, the chain wheel mounting plate 10, the bearing seat 11, the housing support plate 17 and the slide rail 25 through the threaded structure. Rag bolt 3 is used for aluminium type material frame 2 fixed to prevent that aluminium type material frame 2 shifts in the use, rag bolt 3 passes through unable adjustment base 1, and base 1 fixed aluminium type material frame 2, thereby realizes the location to aluminium type material frame 2. The foundation bolt 3 applies pressing force to the base 1. The screw 4 is used for connecting the base 1 and the aluminum profile rack 2 together. The screw 4 applies a pressing force to the spring washer 5, and the screw 4 is connected with the aluminum type material frame 2 through a thread structure. The spring washer 5 is used for preventing the screw 4 from being connected with the base 1 insecurely, and plays a role in providing pretightening force. The spring washer 5 is pressed by the screw 4, and the spring washer 5 applies a pressing force to the flat washer 6. The flat washer 6 increases the contact area of the screw 4 and the spring washer 5, so that the connection is more reliable. The flat washer 6 is pressed by the spring washer 5, and the flat washer 6 applies pressing force to the base 1. The bolts 7 are used for fixing the connecting plate 8 on the aluminum profile rack 2. The bolt 7 is connected with the aluminum type material frame 2 through a thread structure, and the bolt 7 applies pressing force to the connecting plate 8. The connecting plate 8 is used to support the aluminum-type material rack thereon and to connect the upper aluminum-type material rack and the lower portion together by the connecting plate, so that the aluminum-type material rack is divided into two parts by the connecting plate 8, mainly in order to leave space for the chain 23 and the transport plate 24 mounted thereon. The connecting plate 8 is pressed by the bolts 7, and the connecting plate 8 applies pressing force to the aluminum profile material rack 2. The motor mount 9 is used for mounting and fixing the motor 14. The motor mounting seat 9 is fixed on the aluminum type material frame 2 through a thread structure, and the motor mounting seat 9 is connected with the motor 14 through the thread structure. A sprocket mounting plate 10 is fixed to the aluminum type material frame 2, which is used to mount and fix the bearing housing 11. The sprocket mounting plate 10 is connected to the aluminum type material frame 2 and the sprocket 15 by a screw structure, respectively. The bearing support 11 is used for supporting and limiting the radial freedom degree of the shaft 12 in a certain direction, and the bearing support 11 is provided with a bearing. Bearing frame 11 passes through the helicitic texture and links to each other with aluminium alloy work or material rest 2, and bearing frame 11 passes through tolerance fit and links to each other with axle 12. The shaft 12 is used for transmitting power, the chain wheel 15 rotates to drive the shaft 12 to rotate, and the shaft 12 rotates to drive the transmission chain wheel 16 to rotate, so that power transmission is realized. The shaft 12 is connected to the bearing housing 11 and the drive sprocket 16 by a tolerance fit, wherein the shaft 12 and the sprocket 15 or the drive sprocket 16 may be in an interference fit or a key and keyway configuration. The motor chain wheel 13 is used as a transmission component for transmitting the power of the motor 14 to the chain wheel 15 through a chain 23. The motor chain wheel 13 is connected with the motor 14 through tolerance fit, and the motor chain wheel 13 is connected with the chain wheel 15 through a chain wheel-chain structure. The motor 14 provides output power and is the only power source of the present invention. The motor 14 is connected with the motor chain wheel 13 through tolerance fit and is fixed on the motor mounting seat 9 through a thread structure. The chain wheel 15 is a transmission part, the motor chain wheel 13 transmits power to the chain wheel 15 by means of a chain 23, and the chain wheel 15 transmits the power to the shaft 12 and then sequentially transmits the power. The sprocket 15 is connected to the motor sprocket 13 by a sprocket-chain arrangement, and the sprocket 15 is connected to the shaft 12 by tolerance fit. The drive sprocket 16 is used to transmit power to the chain 23. The drive sprocket 16 is connected to the shaft 12 by a tolerance fit and the drive sheave 16 is connected to the connecting member 32 by a tolerance fit. The housing support plate 17 is used to fix the lower housing 18 or the upper housing 19 to the aluminum type material frame 2. The cover shell support plate 17 is connected with the aluminum profile material rack 2 through a threaded structure, the cover shell support plate 17 is connected with the lower cover shell 18, the upper cover shell 19 and the hinge 20 through a hinge structure, and the cover shell support plate 17 is pressed by the cover shell knob 21. The lower casing 18 serves to wrap the chain 23 and other parts inside to reduce the influence of the outside, such as dust, external impact, etc. The lower cover 18 is connected to the hinge 20 by a hinge structure, and the lower cover 18 is pressed by a cover knob 21. The upper casing 19 serves to wrap the chain 23 and other parts inside to reduce the influence of the outside, such as dust, external impact, etc. The upper cover 19 is connected with the hinge 20 through a hinge structure, and the upper cover 19 is pressed by a cover knob 21. The hinge is used for quickly assembling and disassembling the lower cover shell 18 or the upper cover shell 19, and the cover shell support plate 17 is connected with the lower cover shell 18 or the upper cover shell 19 through the hinge. The hinges 20 are connected to the lower and

upper housings

18 and 19, respectively, by hinge structures. The cover shell knob 21 is used for connecting or disconnecting the lower cover shell 18 or the upper cover shell 19 on the cover shell support plate 17, and is designed to be quickly assembled and disassembled, and the cover shell knob 21 is pressed on the lower part of the lower cover shell 18 or the upper cover shell 19 at ordinary times, so that the lower cover shell 18 or the upper cover shell 19 and the cover shell support plate 17 are trained into a plane; when disassembly is required, the cover knob 21 is pulled backwards and rotated 90 degrees so that the cover knob 21 is horizontal as shown in fig. 1, and the lower cover 18 or the upper cover 19 can be flipped open. The cover knob 21 applies pressing forces to the cover support plate 17, the lower cover 18, the upper cover 19, and the compression spring 22, respectively. The compression spring 22 is pressed against the lower housing 18 or the upper housing 19 by exerting a pressing force to ensure that the housing knob 21 can be pressed. The compression spring 22 is pressed by the housing knob 21. The chain 23 is used for transmission and is respectively used for connecting and transmitting the motor chain wheel 13 and the chain wheel 15; the chain wheel 15 and the driving chain wheel 16 are connected and driven. The chain 23 is connected with the motor chain wheel 13, the chain wheel 15 and the transmission chain wheel 16 respectively through a chain wheel-chain structure, the chain 23 is contacted with the chain support rail 26 through tolerance fit, and the chain 23 is connected with the connecting piece 32 through tolerance fit. The transport plate 24 is used for supporting and transporting the fuel rods, is in direct contact with the fuel rods, and is made of plastic materials such as polyformaldehyde. The transport plate 24 is connected to the fuel rod 33 to support and transfer the fuel rod 33, the transport plate 24 is connected to the set screw 30 by a screw structure, and the transport plate 24 applies pressure (gravity) to the holder 31. The slide rail 25 is mainly used to provide mounting for the bearing 27 of the auxiliary support and to limit the freedom thereof. The slide rail 25 is fixed on the aluminum type material frame 2 by a screw structure, and the slide rail 25 is installed and fixed with a bearing 27 by tolerance fit. The chain rail 26 is used for supporting the chain 23, and prevents the chain from being loosened or falling off or loosening due to insufficient tension. The chain rail 26 is in contact with the chain 23 by a tolerance fit. The bearing 27 is used for a moving member of the chain auxiliary support, and the movement of the bearing 27 in the slide rail 25 causes the holder 31 to move, thereby moving the transport plate 24. The bearing 27 is mounted in the slide 25 (freely slidable in the slide) by a tolerance fit, and the bearing 27 is connected to the pin 28 by a tolerance fit. The pin 28 is used to connect the bearing 27 and the support frame 31 together to form a whole. The pin 28 is connected to the nut 29 by a screw structure, and the pin 28 is connected to the bearing 27 and the holder 31 by a tolerance fit. The nut 29 is used to lock and fix the pin 28. A nut 29 is connected to the pin 28 by a threaded arrangement, the nut 29 exerting a compressive force on the holder. The set screw 30 is used to connect the transport plate 24, the holder, and the connecting member 33 together. The set screw 30 is connected to the transport plate 24, the holder 31 and the connecting member 32 by a screw structure, respectively. The holder 31 is used to support and fix the transport plate 24, and is designed in a U-shaped configuration to ensure stable movement of the bearing 27 in the slide rail 25. The holder 31 is connected to the set screw 30 by a screw structure, the holder 31 is pressed (gravity) by the transport plate 24, the holder 31 is connected to the pin 28 by a tolerance fit, and the holder 31 is pressed by the nut 29. The link 32 is used to connect the chain 23 and the holder 31. The connecting member 32 is connected to the chain 23 by a tolerance fit, and the connecting member 32 is connected to the set screw 30 by a screw structure.

The using method of the utility model is as follows:

start device button, automatic operation: the fuel rods are put on the transport plate 24, the motor 14 drives the motor chain wheel 13, the chain 23, the chain wheel 15, the transmission chain wheel 16, the chain 23, the support frame 31 and the transport plate 24 to drive the fuel rods thereon to be transmitted, and after the fuel rods are transmitted to the next procedure, the actions are continuously executed to realize the continuous transmission of a plurality of fuel rods, and the transmission quantity can be adjusted by designing the quantity of the transmission plate grooves.

Innovation point of the utility model

(1) Structural design of transport plate

Because the chain wheel is made of metal material and needs to be added with lubricating oil, the chain wheel can not be in direct contact with the fuel rods, and therefore, the conveying plate is in direct contact with the fuel rods and used for transmission. For avoiding the fuel rod to contact each other in the transportation and produce the mar, so with transport plate upper surface design groove structure, first fuel rod falls first recess along the transport plate that has the inclination earlier, falls the in-process when the second fuel rod and can hit first branch to the second recess, and the second fuel rod falls into first recess, like above-mentioned in-process, realizes that three fuel rods fall into three recess. According to the situation, three grooves or a plurality of grooves can be designed in sequence to match the requirements of different transmission efficiencies. This has the advantage of avoiding the fuel rods from abutting during transport (each fuel rod is in the groove and not in contact with each other), and reducing the possibility of scratching or scratching the respective surfaces of the fuel rods due to accidental slipping or other conditions during transport.

(2) Sprocket transmission structure

At present, fuel rods are mainly transmitted by a transmission wheel system consisting of a plurality of groups of wheels at home and abroad, and part of equipment is transmitted by belt pulleys.

(3) Design of guide structure of transport plate

After the chain wheel is directly connected with the transmission plate, the center of gravity moves to the right due to the fuel rods carried on the transmission plate, the chain wheel not only supports the transmission plate, but also bears torque, the support frame 31 is designed into a U shape, U-shaped slide rails are arranged on the left side and the right side of the lower portion, and the resistance is reduced by utilizing the sliding friction of the bearings, so that the stability of the structure is realized.

(4) Housing design

The encloser is divided into two parts, the sprocket and the chain are shielded from the two ends of the sprocket, except that the influence of dust and foreign matters entering the chain and the sprocket on the transmission of the device can be reduced, more mainly, the fuel rod is prevented from contacting lubricating oil on the chain or the sprocket, because the fuel rod can not contact any grease component, therefore, the whole device structurally avoids the condition, in addition, the semi-closed encloser avoids the lubricating oil from being directly exposed in the air, the service cycle of the lubricating oil is prolonged, the semi-closed encloser is favorable for heat dissipation, and meanwhile, the safety of the sprocket-chain can be protected (other abnormal damage influences on the device). The housing also has an innovation point: adopts a quick-release structure. By designing the housing in two parts, connected by a hinge 20, the housing can be quickly opened by a housing knob 21, facilitating the movement of the viewing device for inspection and the like.

The utility model has the advantages that:

(1) high transmission efficiency

The number of the grooves can be designed on the transmission plate according to requirements so as to store and transport corresponding fuel rods, and a plurality of fuel rods can be transmitted at one time, so that the transmission efficiency is high.

(2) Easy operation

Only the equipment is started, and the equipment can execute corresponding actions according to specific conditions.

(3) Convenient maintenance

The structure formed by the housing, the hinge and the housing knob can realize the quick assembly and disassembly of the housing and is convenient for maintenance.

Claims

1. A sprocket assembly for fuel rod transfer, comprising: the device comprises a base, an aluminum material, a connecting plate, a motor mounting seat, a chain wheel mounting plate, a bearing seat, a shaft, a motor chain wheel, a motor, a chain wheel, a transmission chain wheel, a housing supporting plate, a lower housing, an upper housing, a hinge, a chain, a conveying plate, a sliding rail, a chain supporting rail, a bearing, a pin shaft, a supporting frame and a connecting piece;

the base is connected with a supporting aluminum type material frame;

the aluminum profile material rack is provided with a chain wheel mounting plate, the chain wheel mounting plate is respectively connected with the aluminum profile material rack and the chain wheel, the bearing seat is connected with the aluminum profile material rack, the bearing seat is connected with a shaft, the shaft is respectively connected with the bearing seat and the transmission chain wheel, the motor chain wheel is connected with a motor, and the motor chain wheel is matched with the chain wheel through a chain;

the transport plate is connected with the fuel rods, the slide rail is fixed on the aluminum type material rack,

a bearing is arranged on the sliding rail;

2. The fuel rod transfer sprocket assembly as set forth in claim 1, wherein: the base is fixed on the ground through foundation bolts.

3. A fuel rod transfer sprocket assembly as set forth in claim 1, wherein: the base is connected with the aluminum profile material rack through a screw, and a spring washer and a flat washer are arranged between the screw and the aluminum profile material rack.

4. The fuel rod transfer sprocket assembly as set forth in claim 1, wherein: the aluminum material rack is connected with the bolt through a thread structure, and the bolt is used for connecting the connecting plate with the aluminum material rack.

5. The fuel rod transfer sprocket assembly as set forth in claim 1, wherein: the set screw is respectively connected with the transport plate, the support frame and the connecting piece through a thread structure.

6. A fuel rod transfer sprocket assembly as set forth in claim 1, wherein: the support frame is used for supporting and fixing the transport plate and is of a U-shaped structure so as to ensure that the bearing can stably move in the sliding rail.

7. The fuel rod transfer sprocket assembly as set forth in claim 1, wherein: the support frame is connected with the set screw through a thread structure.

8. The fuel rod transfer sprocket assembly as set forth in claim 1, wherein: the connecting piece is connected with the chain through tolerance fit, and the connecting piece is connected with the set screw through a thread structure.

9. The fuel rod transfer sprocket assembly as set forth in claim 1, wherein: the hinge is provided with a compression spring and a housing knob.

10. The fuel rod transfer sprocket assembly as set forth in claim 1, wherein: the cover shell supporting plate is connected with the lower cover shell, the upper cover shell and the hinge through the hinge structure respectively, and the cover shell supporting plate is pressed by the cover shell knob.