A single-sided drive mechanism for a container crane and a container crane

Abstract

The utility model discloses a single side drive mechanism and container crane suitable for container crane relates to container crane technical field, and single side drive mechanism suitable for container crane includes: trapezoidal main beam, trapezoidal main beam, the first end of trapezoidal main beam sets a drive wheel and a first driven wheel, the second end of trapezoidal main beam sets a second driven wheel, monorail guiding device, a plurality of monorail guiding device are located between drive wheel and first driven wheel, and the transverse position of drive wheel, first driven wheel and second driven wheel on corresponding track is adjusted through monorail guiding wheel device. The above-mentioned single side drive mechanism suitable for container crane solves the technical problem that the existing container crane due to setting drive mechanism respectively on the both sides of container crane needs to set overhauling platform to assist maintenance worker to walk to and fro on the both sides of container crane, increases the workload of maintenance and overhauling, and the overall container crane occupies larger space, and the structure design is not reasonable.

Description

Technical Field

[0001] This utility model relates to the field of container crane technology, and in particular to a single-sided drive mechanism suitable for container cranes and a container crane. Background Technology

[0002] Container cranes are installed above the fuel loading dock, preparation well, and loading well in the fuel plant, primarily for the hoisting operations of receiving, loading, and dispatching spent fuel transport containers. The transfer of spent fuel containers between the loading dock, preparation well, and loading well is accomplished through the container crane's trolley traveling mechanism. Currently, the container crane adopts a rectangular structure with parallel double main beams connected to end beams. The trolley traveling drive mechanisms are located on both sides of the container crane and are synchronously controlled by motors on both sides.

[0003] However, the aforementioned container cranes, by placing the drive mechanisms on both sides, require maintenance platforms to facilitate worker movement between the two sides, increasing maintenance workload and resulting in a large overall space occupation and an unreasonable structural design. Therefore, this paper proposes a single-sided drive mechanism and container crane to address these issues. Utility Model Content

[0004] The purpose of this utility model is to provide a single-sided drive mechanism and a container crane suitable for container cranes, which solves the technical problems of existing container cranes that require maintenance platforms to assist maintenance workers in moving back and forth between the two sides of the container crane due to the drive mechanism being set on both sides of the container crane, thus increasing the workload of maintenance and repair, and the overall container crane occupying a large space and having an unreasonable structural design.

[0005] To achieve the above objectives, this utility model provides a single-sided drive mechanism suitable for container cranes, comprising: a trapezoidal main beam, wherein a drive wheel and a first driven wheel are provided at the first end of the trapezoidal main beam, and the drive wheel is used to drive the container crane on the trapezoidal main beam to move on the track;

[0006] A second driven wheel is provided at the second end of the trapezoidal main beam, and the second driven wheel is used to support the second end of the trapezoidal main beam;

[0007] A plurality of monorail guide devices are provided, wherein the plurality of monorail guide devices are disposed between the drive wheel and the first driven wheel, and the plurality of monorail guide wheel devices are used to adjust the lateral positions of the drive wheel, the first driven wheel and the second driven wheel on the track respectively.

[0008] Preferably, the monorail guiding device includes: an end beam disposed at both ends of the trapezoidal main beam, a horizontal wheel support frame connected to the bottom of the end beam, two adjusting shafts disposed on the horizontal wheel support frame, an eccentric shaft disposed at the lower end of the two adjusting shafts respectively, a horizontal wheel rotatably disposed on the outer circumferential side of the two eccentric shafts respectively, and the circumferential side surfaces of the two horizontal wheels respectively abutting against the two sides of the track.

[0009] Preferably, the horizontal wheel support frame is provided with through holes, and a fixing plate is sleeved on the circumferential side of the adjusting shaft. The fixing plate is connected to the horizontal wheel support frame by a number of bolts.

[0010] Preferably, two slots are symmetrically arranged on the circumferential side of the upper end of the adjusting shaft, and a retaining plate is respectively arranged in the two slots, the retaining plate being connected to the fixing plate.

[0011] Preferably, a positioning plate is sleeved on the circumferential side of the upper end of the adjusting shaft. The positioning plate is positioned above the clamping plate. The positioning plate is connected to the fixing plate by a number of bolts to circumferentially position the adjusting shaft on the fixing plate.

[0012] Preferably, the end of the adjusting shaft is provided with a square head.

[0013] Preferably, an inner hole is provided at the axial position of the horizontal wheel, and a plurality of self-aligning roller bearings are fitted on the circumferential outer side of the eccentric shaft, with the circumferential outer side of the self-aligning roller bearings embedded in the inner hole.

[0014] Preferably, the bottom of the adjusting shaft is connected to a shaft end retaining ring by several bolts, and the shaft end retaining ring is axially close to the self-aligning roller bearing to axially position the self-aligning roller bearing.

[0015] Preferably, the first end of the horizontal wheel is connected to the first cover plate by a number of bolts, and a sealing ring is embedded in the inner circumferential side of the first cover plate, the inner circumferential side of the sealing ring being in contact with the eccentric shaft.

[0016] Preferably, the first cover plate has an annular groove on the side facing the eccentric shaft, and a sealing ring is embedded in the annular groove, with the inner circumferential side of the sealing ring fitting against the eccentric shaft.

[0017] A container crane, comprising the single-sided drive mechanism for container cranes as described in any of the preceding claims.

[0018] Compared to the aforementioned background technology, the single-sided drive mechanism for container cranes provided by this utility model has the following advantages: By setting a drive wheel and a first driven wheel at one end of the trapezoidal main beam, and a second driven wheel at the other end of the trapezoidal main beam, and adopting a trapezoidal near-triangular stable structure, maintenance workers only need to maintain and repair one drive wheel at one end of the trapezoidal main beam, reducing the workload of maintenance and repair. Furthermore, it eliminates the need for a maintenance platform, reducing the overall space occupied by the container crane and making the overall structural design of the container crane more reasonable. On the other hand, by adjusting the lateral position of the drive wheel on the track through a single-rail guide device, the drive wheel, the first driven wheel, and the second driven wheel always run stably on their corresponding tracks, thereby ensuring the safe and stable operation of the container crane during the transfer of spent fuel containers and effectively preventing serious accidents such as tilting, shaking, or even collisions and falls of spent fuel containers. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 A side view of a single-sided drive mechanism for a container crane provided in an embodiment of this utility model;

[0021] Figure 2 A top view schematic diagram of a single-sided drive mechanism for a container crane provided in an embodiment of this utility model;

[0022] Figure 3 A three-dimensional structural diagram of the monorail guide device provided in the embodiment of this utility model;

[0023] Figure 4 This is a side view of the monorail guide device provided in an embodiment of the present utility model;

[0024] Figure 5 This is a cross-sectional schematic diagram of the monorail guide device provided in an embodiment of the present utility model;

[0025] Figure 6 for Figure 2 A partial side view diagram in the direction of A.

[0026] Specifically, 1-trapezoidal main beam; 2-drive wheel; 3-second driven wheel; 4-monorail guide device; 401-horizontal wheel support frame; 402-adjusting shaft; 403-eccentric shaft; 404-horizontal wheel; 405-self-aligning roller bearing; 406-positioning plate; 407-square head; 408-limiting step; 409-shaft sleeve; 410-shaft end retaining ring; 411-clamping plate; 412-fixing plate; 5-first cover plate; 6-sealing ring; 7-second cover plate; 8-rail; 10-first driven wheel. Detailed Implementation

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

[0028] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1 and Figure 2 As shown, in order to achieve the above objectives, this utility model provides a single-sided drive mechanism suitable for container cranes, including: a trapezoidal main beam 1, a drive wheel 2, a first driven wheel 10, a second driven wheel 3, and a single-rail guide device 4.

[0030] A drive wheel 2 and a first driven wheel 10 are installed at the first end of the trapezoidal main beam 1. Specifically, the drive wheel 2 and the first driven wheel 10 are located at the left end of the trapezoidal main beam 1, and the drive wheel 2 drives the trapezoidal main beam 1 to move on the track 8. A second driven wheel 3 is installed at the second end of the trapezoidal main beam 1, specifically at the right end of the trapezoidal main beam 1, and the second driven wheel 3 supports the inner tube at the right end of the trapezoidal main beam 1. It should be noted that by placing a drive wheel 2 and a first driven wheel 10 at one end of the trapezoidal main beam 1, and a second driven wheel 3 at the other end of the trapezoidal main beam 1, and by adopting a trapezoidal near-triangular stable structure, maintenance workers only need to maintain and repair one drive wheel 2 at one end of the trapezoidal main beam 1, reducing the workload of maintenance and repair. Moreover, it eliminates the need for a maintenance platform, reducing the overall space occupied by the container crane, and making the overall structural design of the container crane more reasonable.

[0031] A single-rail guide device 4 is installed below the trapezoidal main beam 1 and fixed to the bottom surface of the left end of the trapezoidal main beam 1. Optionally, two single-rail guide devices 4 are installed, and the structural state of the two single-rail guide devices 4 is always the same. The two single-rail guide devices 4 are installed between the drive wheel 2 and the first driven wheel 10, and there is a certain distance between the two single-rail guide devices 4. The lateral position of the drive wheel 2 and the first driven wheel 10 on the track 8 is adjusted by the single-rail guide wheel device, so that the drive wheel 2, the first driven wheel 10 and the second driven wheel 3 always run stably on the corresponding track 8, thereby ensuring the safe and stable operation of the container crane during the transfer of spent fuel containers and effectively preventing serious accidents such as tilting, shaking or even collision and falling of spent fuel containers.

[0032] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments of this utility model, the monorail guide device 4 includes: end beams disposed at both ends of the trapezoidal main beam 1, a horizontal wheel support frame 401 disposed at the bottom of the end beams, two adjusting shafts 402 disposed on the horizontal wheel support frame 401, the two adjusting shafts 402 disposed on both sides of the track 8, and an eccentric shaft 403 disposed at the lower end of each adjusting shaft 402. It should be noted that the axis of the eccentric shaft 403 is parallel to the axis of the adjusting shaft 402. In addition, a horizontal wheel 404 is rotatably disposed on the outer circumference of the eccentric shaft 403. Specifically, the horizontal wheel 404 is sleeved on the outer circumference of the eccentric shaft 403, and the two horizontal wheels 404 respectively abut against the two sides of the track 8 to overcome the horizontal force on the drive wheel 2 when the trapezoidal main beam 1 moves forward. By rotating the adjusting shaft 402 to drive the eccentric shaft 403 to rotate synchronously, the position of the horizontal wheel 404 relative to the track 8 can be adjusted, that is, the horizontal gap between the horizontal wheel 404 and the track 8 can be adjusted to ensure the smooth operation of the overall container crane.

[0033] Optionally, a through hole is provided on the horizontal wheel support frame 401, and a fixing plate 412 is sleeved on the circumferential side of the adjusting shaft 402. The fixing plate 412 is connected to the horizontal wheel support frame 401 by several bolts, and the fixing plate 412 and the horizontal wheel support frame 401 are connected by multiple bolts. Specifically, an assembly hole is provided on the top surface of the fixing plate 412, and the adjusting shaft 402 is inserted into the assembly hole to stably fix the adjusting shaft 402 on the horizontal wheel support frame 401, so as to overcome the horizontal force on the horizontal wheel 404 and further ensure the smooth operation of the overall container crane.

[0034] In some embodiments of this utility model, two symmetrical slots are provided on the circumferential side of the upper end of the adjusting shaft, and a retaining plate 411 is respectively provided in the two slots. The retaining plate 411 is connected to the fixing plate 412 by several bolts. After the adjusting shaft is inserted into the assembly hole, the bottom surface of the retaining plate 411 abuts against the top surface of the fixing plate 412 to fix the adjusting shaft on the horizontal wheel 404 support frame. In addition, a positioning plate 406 is sleeved on the circumferential side of the upper end of the adjusting shaft. The positioning plate 406 is positioned above the retaining plate 411 and is connected to the fixing plate 412 by several bolts. The positioning plate 406 and the fixing plate 412 press against the retaining plate 411, which can circumferentially position the adjusting shaft on the fixing plate 412.

[0035] In some embodiments of this utility model, a square head 407 is provided at the top of the adjusting shaft 402. The square head 407 is a prism and is integrally formed with the adjusting shaft 402. When it is necessary to rotate the adjusting shaft 402, the bolts between the positioning plate 406 and the fixing plate 412 need to be loosened first, so that the clamping plate 411 can rotate freely relative to the horizontal wheel support frame 401. Furthermore, the square head 407 is manually tightened with a wrench to rotate the adjusting shaft 402 by a certain angle, thereby completing the lateral position adjustment of the horizontal wheel 404 on the track. It should be noted that the distance L between the axis of the eccentric shaft 403 and the axis of the adjusting shaft 402 is 6-8mm. Figure 4 As shown, preferably, the distance L between the axis of the eccentric shaft 403 and the axis of the adjusting shaft 402 is 7mm, that is, the adjustment range of the horizontal wheel 404 relative to the track 8 in the lateral position is 7mm, so that the lateral position of the horizontal wheel 404 relative to the track 8 can be flexibly adjusted according to the needs, so that the drive wheel 2, the first driven wheel 10 and the second driven wheel 3 always run stably on the corresponding track 8, thereby ensuring the safe and stable operation of the overall container crane during the transfer of spent fuel containers.

[0036] In some embodiments of this utility model, an inner hole is provided at the axial position of the horizontal wheel 404, and several self-aligning roller bearings 405 are fitted around the circumferential outer side of the eccentric shaft 403. The self-aligning roller bearings 405 are embedded in the inner hole, which avoids direct contact and friction between the horizontal wheel 404 and the eccentric shaft 403, improves the flexibility of the horizontal wheel 404 during rotation, and extends the service life of the overall monorail guide device 4. Optionally, a bushing 409 is provided on the outer circumferential side of the eccentric shaft 403, and a self-aligning roller bearing 405 is provided on each side of the bushing 409. The bushing 409 separates two adjacent self-aligning roller bearings 405 so that they do not interfere with each other. By cooperating with the rotation of the horizontal wheel 404, the load-bearing capacity of the horizontal wheel 404 is maximized, ensuring that the horizontal wheel 404 can operate stably with the movement of the container crane while abutting against the rail 8.

[0037] It should be noted that the eccentric shaft 403 is located on the bottom end face of the adjusting shaft 402, and the eccentric shaft 403 and the adjusting shaft 402 are integrally formed. The outer peripheral side of the eccentric shaft 403 is provided with a limiting step 408. The self-aligning roller bearing 405 is located below the limiting step 408. The bottom surface of the limiting step 408 abuts against the top surface of one of the self-aligning roller bearings 405, and the top surface of the bushing 409 abuts against the top surface of one of the self-aligning roller bearings 405, so as to limit the corresponding self-aligning roller bearing 405 and ensure that the self-aligning roller bearing 405 operates stably during operation. Meanwhile, a shaft end retaining ring 410 is coaxially mounted on the bottom end face of the eccentric shaft 403. The shaft end retaining ring 410 is fixed to the bottom end face of the eccentric shaft 403 by bolts. The outer diameter of the shaft end retaining ring 410 is larger than the outer diameter of the eccentric shaft 403 to ensure that the edge of the top surface of the shaft end retaining ring 410 can abut against the bottom surface of another self-aligning roller bearing 405. At the same time, the bottom surface of the bushing 409 abuts against the bottom surface of another self-aligning roller bearing 405 to limit the corresponding self-aligning roller bearing 405 and ensure stable operation of the self-aligning roller bearing 405 during operation. It should be noted that the position of the self-aligning roller bearing 405 is filled with grease to ensure the service life of the self-aligning roller bearing 405.

[0038] In some embodiments of this utility model, the first end of the horizontal wheel 404 is connected to the first cover plate 5 by several bolts. A sealing ring 6 is embedded in the inner circumferential side of the first cover plate 5. The inner circumferential side of the sealing ring 6 is in contact with the eccentric shaft 403. The sealing ring 6 can further seal the upper end of the self-aligning roller bearing 405, preventing dust and other impurities from entering between the horizontal wheel 404 and the eccentric shaft 403. The first cover plate 5 is used to seal the upper end of the self-aligning roller bearing 405, preventing dust and other impurities from entering between the horizontal wheel 404 and the eccentric shaft 403, thereby improving the service life of the self-aligning roller bearing 405. The first cover plate 5 is rotatably connected to the eccentric shaft 403 to ensure that the setting of the first cover plate 5 will not affect the free rotation of the horizontal wheel 404 relative to the eccentric shaft 403.

[0039] In addition, a second cover plate 7 is connected to the second end of the horizontal wheel 404 by several bolts. The second cover plate 7 is located directly below the eccentric shaft 403, and the second cover plate 7 does not contact the eccentric shaft 403 or the self-aligning roller bearing 405. The second cover plate 7 can completely seal the lower end of the self-aligning roller bearing 405, thereby improving the service life of the self-aligning roller bearing 405.

[0040] The working principle of this utility model is as follows: when the drive wheel 2 drives the trapezoidal main beam 1 to move forward along the track 8 in direction A, as Figure 2As shown, the right end of the trapezoidal main beam 1 will exert a horizontal force on the other end of the trapezoidal main beam 1 due to its own inertial force. One of the horizontal wheels 404 on the monorail guide device 4 will abut against the side of the track 8 to overcome the horizontal force on the drive wheel 2 when the trapezoidal main beam 1 moves forward, prevent the trapezoidal main beam 1 from running skewed, and thus ensure the smooth operation of the overall container crane. By rotating the adjusting shaft 402, the eccentric shaft 403 is driven to rotate synchronously, adjusting the position of the horizontal wheel 404 relative to the track 8, that is, adjusting the horizontal gap between the horizontal wheel 404 and the track 8, to ensure the smooth operation of the overall container crane.

[0041] In addition to the single-sided drive mechanism for container cranes described above, this utility model also provides a container crane that includes the single-sided drive mechanism for container cranes disclosed in the above embodiments. For the structure of other parts of the container crane, please refer to the prior art, which will not be repeated here.

[0042] In summary, by setting a drive wheel 2 and a first driven wheel 10 at one end of the trapezoidal main beam 1, and a second driven wheel 3 at the other end of the trapezoidal main beam 1, maintenance workers only need to maintain and repair the drive wheel 2 at one end of the trapezoidal main beam 1, which reduces the workload of maintenance and repair. Moreover, there is no need to set up a maintenance platform. Furthermore, the trapezoidal main beam 1 adopts a trapezoidal near-triangular stable structure, which can reduce the space occupied by the overall container crane, and the overall structural design of the container crane is more reasonable.

[0043] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0044] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A single-sided drive mechanism suitable for use with a container crane, characterized in that, include: A trapezoidal main beam, wherein a drive wheel and a first driven wheel are provided at the first end of the trapezoidal main beam, and the drive wheel is used to drive the container crane on the trapezoidal main beam to move on the track; A second driven wheel is provided at the second end of the trapezoidal main beam, and the second driven wheel is used to support the second end of the trapezoidal main beam; A plurality of monorail guide devices are provided, wherein the plurality of monorail guide devices are disposed between the drive wheel and the first driven wheel, and the plurality of monorail guide devices are used to adjust the lateral positions of the drive wheel, the first driven wheel and the second driven wheel on the track respectively.

2. The single-sided drive mechanism for a container crane according to claim 1, characterized in that, The monorail guiding device includes: end beams located at both ends of the trapezoidal main beam; a horizontal wheel support frame connected to the bottom of the end beams; two adjusting shafts on the horizontal wheel support frame; eccentric shafts at the lower ends of the two adjusting shafts; horizontal wheels rotatably mounted on the outer circumferential surfaces of the two eccentric shafts; and the circumferential sides of the two horizontal wheels abutting against the two sides of the track.

3. A single-sided drive mechanism suitable for a container crane according to claim 2, characterized in that, The horizontal wheel support frame is provided with through holes, and a fixing plate is sleeved on the circumferential side of the adjusting shaft. The fixing plate is connected to the horizontal wheel support frame by several bolts.

4. A single-sided drive mechanism suitable for a container crane according to claim 3, characterized in that, Two slots are symmetrically arranged on the circumferential side of the upper end of the adjusting shaft, and a retaining plate is respectively arranged in the two slots. The retaining plate is connected to the fixing plate.

5. A single-sided drive mechanism suitable for a container crane according to claim 3, characterized in that, A positioning plate is sleeved on the circumferential side of the upper end of the adjusting shaft. The positioning plate is positioned above the clamping plate. The positioning plate is connected to the fixing plate by several bolts to position the adjusting shaft circumferentially on the fixing plate.

6. A single-sided drive mechanism suitable for a container crane according to claim 2, characterized in that, The end of the adjusting shaft is provided with a square head.

7. A single-sided drive mechanism suitable for a container crane according to claim 6, characterized in that, An inner hole is provided at the axis position of the horizontal wheel, and a plurality of self-aligning roller bearings are fitted on the outer circumferential side of the eccentric shaft, with the outer circumferential side of the self-aligning roller bearings embedded in the inner hole.

8. A single-sided drive mechanism suitable for a container crane according to claim 2, characterized in that, The bottom of the adjusting shaft is connected to a shaft end retaining ring by several bolts. The shaft end retaining ring is axially close to the self-aligning roller bearing to axially position the self-aligning roller bearing.

9. A single-sided drive mechanism suitable for a container crane according to claim 7, characterized in that, The first end of the horizontal wheel is connected to the first cover plate by several bolts. A sealing ring is embedded in the inner circumferential side of the first cover plate, and the inner circumferential side of the sealing ring is in contact with the eccentric shaft.

10. A container crane, characterized in that, The single-sided drive mechanism for container cranes includes any one of the claims 1-9 above.

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