CN219116371U - Rigid push chain of nuclear fuel transport trolley - Google Patents
Rigid push chain of nuclear fuel transport trolley Download PDFInfo
- Publication number
- CN219116371U CN219116371U CN202223367271.XU CN202223367271U CN219116371U CN 219116371 U CN219116371 U CN 219116371U CN 202223367271 U CN202223367271 U CN 202223367271U CN 219116371 U CN219116371 U CN 219116371U
- Authority
- CN
- China
- Prior art keywords
- chain
- nuclear fuel
- shaft
- piece
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The utility model discloses a rigid push chain of a nuclear fuel transportation trolley, which comprises two or more sections of chain links connected end to end, wherein each chain link comprises a chain plate, two connecting sheets positioned at the outer side of the chain plate, a chain shaft arranged in a first connecting hole formed by adjacent chain plates, a middle guide wheel arranged in the middle of the chain shaft and two side wheels arranged at the two ends of the chain shaft; the chain shaft is connected with adjacent chain links in series through connecting sheets; the chain plate is of a U-shaped structure and comprises two first chain plates which are parallel to each other and a second chain plate connected with the bottoms of the two first chain plates; the contact surface of the adjacent chain plates is in straight-slit design; the middle guide wheel is positioned between the two first chain sheets of the chain plate, and the two connecting sheets are respectively positioned at the outer sides of the two first chain sheets of the chain plate; the side wheel is positioned at the outer side of the connecting sheet and is fixed by a nut at the end part of the chain shaft. The middle part of the chain shaft is provided with the middle guide wheel which is meshed with the driving chain wheel, and the two ends of the chain shaft are provided with the side wheels which are matched with the guide rail, so that the safety and the transmission accuracy of the push chain are effectively enhanced.
Description
Technical Field
The utility model belongs to the field of transmission chains, and particularly relates to a rigid push chain of a nuclear fuel transport trolley.
Background
The transmission chain is a basic component widely used in mechanical transmission, and the transmission chain drives the driven sprocket to rotate by the driving sprocket to realize force transmission. However, due to the limitation of the chain link structure, only a tensile force can be realized between two adjacent chain links on the transmission chain, a rigid pushing force can not be realized, and vertical lifting and horizontal pushing actions can not be realized in a non-closed state.
In order to solve the above problems, industry has devised various rigid transmission chains, which achieve rigid thrust between adjacent links by improving the link structure. However, most of the existing rigid transmission chains have complex structures, various parts, high cost, complex processing, poor manufacturability, difficult guarantee of transmission precision, and often incapability of ensuring stability and safety of the transportation trolley when the rigid transmission chains are used for the nuclear fuel transportation trolley due to incapability of being accurately matched with the driving sprocket and the guide rail.
In view of the foregoing, it is desirable to provide a rigid push chain for a nuclear fuel transportation cart that solves the above-described problems.
Disclosure of Invention
The utility model aims at: the rigid push chain can ensure the stability and the safety of the nuclear fuel transport trolley during operation, so as to improve the automation level of the nuclear fuel transport trolley in the transfer device.
In order to achieve the aim, the utility model provides a rigid push chain of a nuclear fuel transport trolley, which comprises two or more sections of chain links connected end to end, wherein each chain link comprises a chain plate, two connecting sheets positioned at the outer side of the chain plate, a chain shaft arranged in a first connecting hole formed by adjacent chain plates, a middle guide wheel arranged in the middle of the chain shaft and two side wheels arranged at the two ends of the chain shaft; the chain shaft is connected with adjacent chain links in series through connecting sheets; the chain plate is of a U-shaped structure and comprises two first chain plates which are parallel to each other and a second chain plate connected with the bottoms of the two first chain plates; the contact surface of the adjacent chain plates is in straight-slit design; the middle guide wheel is positioned between the two first chain pieces of the chain plate, and the two connecting pieces are respectively positioned at the outer sides of the two first chain pieces of the chain plate; the side wheels are positioned on the outer sides of the connecting sheets and are fixed by nuts at the end parts of the chain shafts.
As an improvement of the rigid push chain of the nuclear fuel transport trolley, the chain link also comprises a copper pad, wherein the copper pad is arranged between the chain plate and the connecting sheet and between the adjacent connecting sheets.
As an improvement of the rigid push chain of the nuclear fuel transport trolley, the chain plate, the connecting sheet and the chain shaft are all made of stainless steel, and the middle guide wheel and the side wheels are made of copper alloy.
As an improvement of the rigid push chain of the nuclear fuel transport trolley, the second chain piece is provided with a water draining hole.
As an improvement of the rigid push chain of the nuclear fuel transport trolley, the front side surface and the rear side surface of the first chain sheet are respectively provided with an arc-shaped groove, and the arc-shaped grooves of two adjacent first chain sheets jointly form a first connecting hole for a chain shaft to pass through.
As an improvement of the rigid push chain of the nuclear fuel transport trolley, the front side surface and the rear side surface of the first chain piece are both vertical planes perpendicular to the extending direction of the push chain, and the front side surface and the rear side surface of the first chain piece are cut to form inclined planes.
As an improvement of the rigid push chain of the nuclear fuel transport trolley, the first connecting hole is a non-closed hole with an open top, and the opening at the top of the first connecting hole is smaller than the diameter of the chain shaft.
As an improvement of the rigid push chain of the nuclear fuel transport trolley, the connecting sheet is a straight sheet with two ends provided with a second connecting hole, and the hole spacing of the two second connecting holes is equal to the hole spacing of the two adjacent first connecting holes of the chain plate.
As an improvement of the rigid push chain of the nuclear fuel transport trolley, the connecting sheet is a straight sheet without bending, the upper side and the lower side of the connecting sheet are right-angle sides, the front side and the rear side of the connecting sheet are semicircular sides, and the center of a second connecting hole is positioned on the centers of the front semicircular side and the rear semicircular side; the chain shaft passes through the second connecting hole positioned at the rear end of the front connecting piece and the second connecting hole positioned at the front end of the rear connecting piece, so that the serial connection of adjacent chain links is realized.
Compared with the prior art, the rigid push chain of the nuclear fuel transport trolley solves the problem of horizontal reciprocating motion of the transport trolley under external driving in the nuclear fuel transport process by connecting a plurality of groups of links with the same shape and structure in series, and meanwhile, the link structure is simple, so that the processing difficulty, the manufacturing tolerance and the overall weight of the push chain can be further reduced, the bearing capacity of the push chain is improved, and the problems of poor manufacturability, overlarge quality, multiple parts and poor transmission precision of the conventional push chain structure are solved; because the middle part of the chain shaft is provided with the middle guide wheel which is meshed with the driving chain wheel, and the two ends of the chain shaft are provided with the side wheels which are matched with the guide rail, the safety and the transmission accuracy of the push chain are enhanced, and the push chain can run more accurately and smoothly.
Drawings
The rigid push chain of the nuclear fuel transport trolley and beneficial effects thereof are described in detail below with reference to the accompanying drawings and detailed description.
Fig. 1 is a perspective view of a rigid push chain of a nuclear fuel transfer trolley of the present utility model.
Fig. 2 is a side view of a link connection of a rigid push chain of a nuclear fuel transfer trolley according to the present utility model.
Fig. 3 is a cross-sectional view of a link of a rigid push chain of a nuclear fuel transfer trolley according to the utility model.
Fig. 4 is a schematic diagram of a single link plate structure of the rigid push chain of the nuclear fuel transportation trolley of the utility model.
Fig. 5 is a schematic view of the mating of adjacent link plates.
Fig. 6 is a schematic view showing a use state of the rigid push chain of the nuclear fuel transport trolley according to the present utility model.
Detailed Description
In order to make the objects, technical solutions and advantageous technical effects of the present utility model clearer, the present utility model will be further described in detail with reference to the accompanying drawings and detailed description. It should be understood that the detailed description is presented herein for purposes of illustration only and is not intended to limit the utility model.
Referring to fig. 1 to 5, the rigid push chain of the nuclear fuel transportation trolley of the present utility model comprises two or more links connected end to end, each link comprising a link plate 10, two connecting plates 20 positioned outside the link plate 10, a chain shaft 30 installed in a first connecting hole 11 formed by adjacent link plates 10, a middle guide wheel 40 provided in the middle of the chain shaft 30, and two side wheels 50 provided at both ends of the chain shaft 30. The chain shaft 30 connects adjacent links in series by the link plates 20. The number of the chain links of the rigid push chain of the nuclear fuel transport trolley is determined according to the actual working condition, and the number of the chain links is not particularly limited.
The link plates 10 are main action components of the push chain, are arranged on the inner sides of the two connecting sheets 20, and the contact surfaces of the adjacent link plates 10 are in straight-slit design so as to improve the matching precision. Specifically, each link plate 10 has a "U" structure and includes two first link plates 12 parallel to each other and a second link plate 14 connecting bottoms of the two first link plates 12, wherein each of front and rear sides of the first link plates 12 is provided with an arc-shaped groove 120, and the arc-shaped grooves 120 of two adjacent first link plates 12 together form a first connecting hole 11 through which the chain shaft 30 passes. The front and rear sides 122 of the first link 12 below the arc-shaped groove 120 and the front and rear sides 140 of the second link 14 are vertical planes perpendicular to the extending direction of the push chain, and the front and rear sides of the first link 12 above the arc-shaped groove 120 are cut to form inclined planes 124, so that adjacent links can be turned relatively due to the inclined planes 124, and the curled turning of the push chain is realized. To avoid interference, the first connecting hole 11 is preferably a non-closed hole with an open top, but the opening at the top of the first connecting hole 11 is smaller than the diameter of the chain shaft 30, ensuring that the chain shaft 30 does not come out of the first connecting hole 11. The two connecting pieces 20 are located outside the two first link pieces 12 of the link plate 10, respectively. The second link plate 14 of the link plate 10 is also provided with a drain hole (not shown) for facilitating underwater operation.
The connecting piece 20 is a straight piece with two ends provided with a second connecting hole 22, and the hole spacing between the two second connecting holes 22 is equal to the hole spacing between the two adjacent first connecting holes 11 of the chain plate 10. Specifically, the connecting piece 20 is a straight piece without bending, the upper and lower sides of the connecting piece are right-angle sides, the front and rear sides of the connecting piece are semicircular sides, and the center of the second connecting hole 22 is located on the center of the front and rear semicircular sides.
The chain shaft 30 is mounted in the first connecting hole 11 formed in the arc-shaped groove 120 of the adjacent link plate 10 for connecting the respective components of the links while connecting the adjacent links in series through the connecting piece 20. The specific manner in which the chain shaft 30 connects adjacent links in series by the link plates 20 is: both ends of the chain shaft 30 pass through the second connecting hole 22 at the rear end of the front connecting piece 20 and the second connecting hole 22 at the front end of the rear connecting piece 20 to realize the serial connection of adjacent links.
The side wheels 50 and the intermediate guide wheel 40 are guide means for the push chain, enhancing the safety and transmission accuracy of the push chain. The intermediate guide pulley 40 is disposed in the middle of the chain shaft 30 and between the two first links 12 of the link plate 10, and is mainly used for meshing with the driving sprocket. The side wheels 50 are provided at both ends of the link shaft 30, are positioned outside the connecting piece 20, and are fixed by nuts 32 at the end of the link shaft 30, and are mainly used for being matched with guide rails to guide the push chain.
The chain plate 10, the connecting sheet 20 and the chain shaft 30 of the rigid push chain of the nuclear fuel transport trolley are all made of stainless steel, and the middle guide wheel 40 and the side wheels 50 are made of copper alloy.
Preferably, each link of the rigid push chain of the nuclear fuel transfer trolley of the present utility model further comprises a copper pad 60. The copper pad 60 is disposed between the link plate 10 and the connecting piece 20, between the adjacent connecting piece 20 and between the nut 32 and the side wheel 50, and the copper pad 60 is a wear part of the push chain, and has the function of reducing the wear of main parts, improving the service life of the push chain, and solving the problem of "seizure" of the chain piece and the problem of underwater lubrication.
When the nuclear fuel transport trolley is used, one end of the rigid push chain of the nuclear fuel transport trolley is connected with the transport trolley, and the other end of the rigid push chain bypasses the chain wheel to be placed freely:
when the driving mechanism drives the chain wheel to rotate in a certain direction, the chain wheel is meshed with the push chain, so that the push chain is driven to shrink towards one side of the chain wheel, and the push chain is bent and recovered; the push chain is connected with the transport trolley, and the trolley is pulled to move towards the direction of the chain wheel;
when the driving mechanism drives the chain wheel to rotate reversely, due to the special structure of the rigid push chain, the straight joint type contact surfaces of the adjacent chain plates interact to block the lateral bending of the push chain, so that the push chain cannot curl in the other direction, the push chain moves forwards and keeps rigid, and the transportation trolley is pushed to move in the direction away from the chain wheel.
It is readily understood that the rigid push chain of the nuclear fuel transfer trolley of the present utility model is typically used in a single row, but may also be used in a double row back-to-back, at least two rows side-by-side, or the like, under particularly heavy load conditions. For example, as shown in FIG. 6, a double row push chain back-to-back refers to the use of the U-shaped link plates of two rows of push chains back-to-back (i.e., the first link plates 12 of the link plates back-to-back).
According to the rigid push chain of the nuclear fuel transportation trolley, disclosed by the utility model, the problem of horizontal reciprocating motion of the transportation trolley under external driving in the nuclear fuel transportation process is solved by connecting the links with the same shape and structure in series, and meanwhile, as each link is smooth in appearance and simple in structure, the processing difficulty, manufacturing tolerance and overall weight of the push chain can be further reduced, so that the bearing capacity of the push chain is improved, and the problems of poor manufacturability, overlarge quality, multiple parts, poor transmission precision and incapability of adapting to underwater operation environments of the conventional push chain are solved.
Compared with the prior art, the rigid push chain of the nuclear fuel transport trolley has at least the following advantages:
1) The structure shape of each chain plate in the push chain is completely consistent, the types of parts are reduced, the appearance is smooth and concise, the contact surface of the adjacent chain plates is a straight joint contact surface, the matching precision is high, and the manufacturing difficulty and the cost are low;
2) The chain plate is of a U-shaped structure, so that the weight of the push chain is reduced, and the structures such as the middle guide wheel in the chain plate are exposed, thereby being easy to maintain and repair;
3) The side wheels and the middle guide wheels are respectively arranged at the two sides and the middle of the push chain, so that the push chain can be matched with the chain wheel guide rail for use in the actual use process, and the safety and the reliability of the push chain are improved;
4) The copper pad is arranged at the position with larger abrasion, so that the abrasion resistance is improved, the bearing capacity of the push chain is improved, the service life is prolonged, and the later maintenance is facilitated;
5) All components of the rigid push chain are made of stainless steel or copper alloy, so that the problem of chain piece seizure and the problem of underwater lubrication are well solved, and the rigid push chain has strong bearing capacity and can be well adapted to underwater operation environment and strong radiation environment;
6) The application range is wide, and the device can be suitable for the nuclear power field and other civil fields, including but not limited to stage lifting, automobile maintenance platform movement, multifunctional operation platform movement and the like.
Modifications and variations of the above embodiments will be apparent to those skilled in the art in light of the above teachings. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the utility model should be also included in the scope of the claims of the utility model. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present utility model in any way.
Claims (9)
1. The utility model provides a nuclear fuel transport trolley rigidity push chain, includes two sections or more than two sections chain links that concatenate, its characterized in that: the chain link comprises a chain plate, two connecting sheets positioned at the outer side of the chain plate, a chain shaft arranged in a first connecting hole formed by the adjacent chain plate, a middle guide wheel arranged in the middle of the chain shaft and two side wheels arranged at the two ends of the chain shaft; the chain shaft is connected with adjacent chain links in series through connecting sheets; the chain plate is of a U-shaped structure and comprises two first chain plates which are parallel to each other and a second chain plate connected with the bottoms of the two first chain plates; the contact surface of the adjacent chain plates is in straight-slit design; the middle guide wheel is positioned between the two first chain pieces of the chain plate, and the two connecting pieces are respectively positioned at the outer sides of the two first chain pieces of the chain plate; the side wheels are positioned on the outer sides of the connecting sheets and are fixed by nuts at the end parts of the chain shafts.
2. The nuclear fuel transportation trolley rigid push chain of claim 1, wherein: the chain link also comprises a copper pad, and the copper pad is arranged between the chain plate and the connecting sheet and between the adjacent connecting sheets.
3. The nuclear fuel transportation trolley rigid push chain of claim 1, wherein: the chain plate, the connecting sheet and the chain shaft are all made of stainless steel, and the middle guide wheel and the side wheels are made of copper alloy.
4. The nuclear fuel transportation trolley rigid push chain of claim 1, wherein: the second chain piece is provided with a water drain hole.
5. The nuclear fuel transportation trolley rigid push chain of any one of claims 1 to 4, wherein: the front side and the rear side of the first chain piece are respectively provided with an arc-shaped groove, and the arc-shaped grooves of two adjacent first chain pieces jointly form a first connecting hole for a chain shaft to pass through.
6. The nuclear fuel transportation cart rigid push chain of claim 5, wherein: the front side surface and the rear side surface of the first chain piece are vertical surfaces perpendicular to the extending direction of the push chain, and the front side surface and the rear side surface of the first chain piece are positioned below the arc-shaped groove, and the front side surface and the rear side surface of the first chain piece are cut to form inclined surfaces.
7. The nuclear fuel transportation cart rigid push chain of claim 6, wherein: the first connecting hole is a non-closed hole with an open top, and the opening at the top of the first connecting hole is smaller than the diameter of the chain shaft.
8. The nuclear fuel transportation trolley rigid push chain of any one of claims 1 to 4, wherein: the connecting piece is a straight piece with two ends provided with a second connecting hole, and the hole distance between the two second connecting holes is equal to the hole distance between two adjacent first connecting holes of the chain plate.
9. The nuclear fuel transportation cart rigid push chain of claim 8, wherein: the connecting piece is a straight piece without bending, the upper side and the lower side of the connecting piece are right-angle sides, the front side and the rear side of the connecting piece are semicircular sides, and the circle center of the second connecting hole is positioned on the circle centers of the front semicircular side and the rear semicircular side; the chain shaft passes through the second connecting hole positioned at the rear end of the front connecting piece and the second connecting hole positioned at the front end of the rear connecting piece, so that the serial connection of adjacent chain links is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223367271.XU CN219116371U (en) | 2022-12-15 | 2022-12-15 | Rigid push chain of nuclear fuel transport trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223367271.XU CN219116371U (en) | 2022-12-15 | 2022-12-15 | Rigid push chain of nuclear fuel transport trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219116371U true CN219116371U (en) | 2023-06-02 |
Family
ID=86527943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223367271.XU Active CN219116371U (en) | 2022-12-15 | 2022-12-15 | Rigid push chain of nuclear fuel transport trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219116371U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114162741A (en) * | 2021-10-22 | 2022-03-11 | 中广核研究院有限公司 | Rigid push chain driving system |
-
2022
- 2022-12-15 CN CN202223367271.XU patent/CN219116371U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114162741A (en) * | 2021-10-22 | 2022-03-11 | 中广核研究院有限公司 | Rigid push chain driving system |
| CN114162741B (en) * | 2021-10-22 | 2023-08-25 | 中广核研究院有限公司 | Rigid push chain drive system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8585015B2 (en) | Engagement chain | |
| CN219116371U (en) | Rigid push chain of nuclear fuel transport trolley | |
| US8984975B2 (en) | Engagement chain unit | |
| US8328670B2 (en) | Engagement chain | |
| EP2320109B1 (en) | Engagement chain | |
| DE102010002556B4 (en) | Elevation drive coupling chain | |
| CN108407911B (en) | Automatic tree climbing device and tree climbing method thereof | |
| CN103492756B (en) | Engagement chain unit | |
| KR20100023735A (en) | Hoisting and lowering driving engagement multi-row chain | |
| CN203009697U (en) | Double-pitch variable-pitch silent chain | |
| CN110234908B (en) | Thrust chain device | |
| CN113062520A (en) | Rigid-flexible conversion self-adaptive driving system of retractable roof | |
| TWI513924B (en) | Hanging chain | |
| CN216430401U (en) | Rigid push chain | |
| CN210012469U (en) | Moving sidewalk conveying mechanism | |
| CN217539481U (en) | Rigid push-pull chain | |
| CN110759295A (en) | Rigid chain with auxiliary supporting structure | |
| CN219692141U (en) | Light and small steel integrated drag chain based on pipeline protection | |
| CN218625275U (en) | Pin gear chain transmission mechanism | |
| CN216549273U (en) | Corrosion-resistant stable driving structure | |
| CN217436829U (en) | Intermediate driving device of conveying piece | |
| CN214191286U (en) | Double-pitch chain wheel plate chain transmission conveying device | |
| CN215973594U (en) | Double-exchange transport vehicle for flexible manufacturing production line | |
| CN219169967U (en) | Roller mechanism for limiting sliding table | |
| CN216510812U (en) | Large-tonnage double-row chain conveying line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |