Anti-derailing device of quayside container crane

Abstract

The invention relates to the technical field of quayside container crane structures, in particular to a quayside container crane derailing prevention device which comprises a rail and a wheel set moving on the rail, two grooves are oppositely formed in the rail, a plurality of derailing prevention columns are arranged in each groove, and side plates are arranged on the two sides of each wheel set. According to the invention, the derailment phenomenon of the traditional wheel set during advancing on the track is effectively solved, the wheel set and the track are always kept in a connection state conveniently, and the wheel set is allowed to advance on the track, so that the phenomena of jack toppling, door leg buckling and the like caused by derailment are effectively avoided; by means of the mode that the multiple clamping sets circularly move on the side plates when moving along with the wheel sets, part of the multiple clamping sets are always used in cooperation with part of the anti-disengaging columns on the grooves, so that the effect that the wheel sets are always kept in the connection state with the track when moving on the track is achieved, and alternate and cyclic use of the multiple clamping sets is achieved.

Description

Technical Field

[0001] This invention relates to the field of quay crane structure technology, and in particular to a device for preventing derailment of a quay container crane. Background Technology

[0002] As the core equipment for container loading and unloading operations in modern ports, the operational stability of quay cranes directly affects port operational efficiency and structural safety. In traditional container crane designs, the wheel assembly usually moves directly along the track, lacking a dedicated anti-derailment device for extreme loads, especially earthquakes. When disasters such as earthquakes occur, strong nonlinear dynamic interactions easily occur between the track and the wheel assembly, leading to instability in the wheel-rail contact state and causing the wheel assembly to derail. This derailment then causes the crane's leg structure to bear asymmetrical loads, inducing stress concentration and plastic deformation, which in turn causes the leg to buckle or even break, seriously affecting the overall structural stability. At the same time, after derailment, the crane's operation becomes unstable, which can easily cause the entire machine to tilt or collapse, resulting not only in serious equipment damage but also potentially endangering the surrounding work area and personnel safety.

[0003] Currently, there is a lack of specific protective measures against derailment of container cranes. Therefore, developing a dedicated anti-derailment device for container cranes is of great significance for improving their operational safety under dynamic loads such as earthquakes. Summary of the Invention

[0004] This invention provides a derailment prevention device for quay container cranes, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A derailment prevention device for a quayside container crane includes a track and a wheel assembly that moves on the track. Two grooves are formed opposite to each other on the track, and a plurality of anti-derailment posts are arranged in each groove. Side plates are provided on both sides of the wheel assembly, and the wheel assembly rotates on the side plates. A plurality of clamping groups are arranged in a ring on the side plates, and the clamping groups rotate on the side plates. Some of the clamping groups on the side plates are used in conjunction with the corresponding anti-derailment posts. The clamping assembly includes a support frame, two auxiliary platforms disposed opposite to each other on the support frame, and a clamping plate rotatably disposed on each of the auxiliary platforms. The clamping plate has a side clamping surface that cooperates with the anti-detachment column. The adjacent support frames are rotatably connected by a tie rod.

[0006] Furthermore, the clamping plate is provided with a connecting body that slides along the trajectory of the side clamping surface. The connecting body is provided with a plurality of strips. A plurality of notches are opened on the side clamping surface. The strips are slidably installed in the notches, and the strips are coplanar with the side clamping surface. When the strip is in working condition, both ends of the strip are located on both sides of the vertical plane corresponding to the axis of the anti-detachment column.

[0007] Furthermore, the clamping assembly also includes a drive column slidably disposed on the support frame, a connecting rod disposed on the drive column, the connecting rod being connected to the connecting body via a connecting arm, and the connecting body being connected to the clamping plate via an elastic body.

[0008] Furthermore, a locking frame is slidably mounted on the two auxiliary platforms, the locking frame locking the two clamping plates in the working state, and the locking frame being fixed relative to the drive column.

[0009] Furthermore, the end of the drive column is provided with a pressing platform for pressing the anti-detachment column in the vertical direction.

[0010] Furthermore, the anti-detachment column includes a connecting column and two side top sleeves disposed opposite to each other on the connecting column, the two side top sleeves moving relative to each other and cooperating with the side wall of the clamping plate.

[0011] Furthermore, both ends of the connecting column are provided with threaded columns, and the side top sleeve is screwed to the threaded column. The cross-sectional shape of the connecting column is elliptical and the ellipse is inclined. The threaded column is rotatably mounted on the track. The side top sleeve is movable along the axis of the connecting column. The two side top sleeves are connected by a spring piece.

[0012] Furthermore, an annular guide groove is provided on the side wall of the side plate, the lower side of the annular guide groove is set to a horizontal state, and two guide posts are provided on the support frame, the guide posts being slidably disposed within the annular guide groove.

[0013] Furthermore, an annular drive groove with the same shape as the annular guide groove is provided on the side wall of the side plate, and a recessed area is provided at the bottom of the annular drive groove. Each drive post is provided with a guide post II that cooperates with the annular drive groove.

[0014] Furthermore, a helical gear, a helical gear column, and a shifting column are rotatably provided on the side plate. The helical gear is driven by the wheel set, the helical gear is driven by the helical gear column, and the helical gear column is provided with rollers that are driven by the shifting column. A spiral groove is provided on the outer wall of the actuating column, and the guide column 2 is used in conjunction with the spiral groove.

[0015] The technical solution of this invention can achieve the following technical effects: This design effectively solves the problem of derailment when traditional wheelsets travel on tracks, ensuring that the wheelsets remain connected to the track and allowing them to travel on the track. This effectively prevents crane tipping and gate leg bending caused by derailment. By utilizing several clamping groups that circulate on the side plate as they follow the wheelsets, some clamping groups always work in conjunction with anti-derailment posts on the grooves, thus maintaining a constant connection between the wheelsets and the track while they travel. This allows for the alternating and cyclical use of the clamping groups.

[0016] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a derailment prevention device for a quayside container crane. Figure 2 for Figure 1 Schematic diagram of the middle track structure; Figure 3 for Figure 1 Schematic diagram of the middle gear assembly; Figure 4 for Figure 3 Schematic diagram of the middle clamping assembly; Figure 5 for Figure 4 Schematic diagram of the middle plate and its upper structure; Figure 6 for Figure 5 A structural diagram from another perspective; Figure 7 for Figure 4 A schematic diagram of the central drive column and its superstructure; Figure 8 for Figure 3 Schematic diagram of the middle side plate; Figure 9 for Figure 2 Schematic diagram of the structure of the anti-detachment column; Figure 10 for Figure 9 Schematic diagram of cross-section structure; Reference numerals: 100, track; 101, groove; 102, anti-detachment post; 103, connecting post; 104, side top sleeve; 105, threaded post; 106, spring piece; 200. Wheelset; 201. Side plate; 202. Annular guide groove; 203. Guide post one; 204. Annular drive groove; 205. Recessed area; 206. Guide post two; 207. Helical gear; 208. Helical gear column; 209. Actuating column; 210. Roller; 300. Clamping assembly; 301. Support frame; 302. Auxiliary table; 303. Clamping plate; 304. Side clamping surface; 305. Connecting body; 306. Slat; 307. Drive column; 308. Connecting rod; 309. Connecting arm; 310. Elastic body; 311. Frame; 312. Pressing table; 313. Pull rod. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] like Figures 1 to 6 As shown, this application provides a derailment prevention device for a quayside container crane, including a track 100 and a wheel set 200 that moves on the track 100. Two grooves 101 are opened opposite each other on the track 100, and a plurality of anti-derailment columns 102 are arranged in each groove 101. Side plates 201 are provided on both sides of the wheel set 200. The wheel set 200 rotates on the side plates 201. A plurality of clamping groups 300 are arranged in a ring on the side plates 201, and the clamping groups 300 rotate on the side plates 201. Some of the clamping groups 300 on the side plates 201 are used in conjunction with the corresponding anti-derailment columns 102. The clamping assembly 300 includes a support frame 301, two auxiliary platforms 302 disposed opposite to each other on the support frame 301, and a clamping plate 303 rotatably disposed on each auxiliary platform 302. The clamping plate 303 has a side clamping surface 304 that cooperates with the anti-detachment column 102. The two adjacent support frames 301 are rotatably connected by a tie rod 313.

[0022] Specifically, the wheel assembly 200 can consist of multiple wheels arranged in a straight line, with the wheel arrangement direction along the length of the track 100. The two grooves 101 on the track 100 can be located on opposite sides of the axis of the wheel assembly 200, or on the same side. When the two grooves 101 are located on opposite sides of the wheel assembly 200, the area of ​​the track 100 between the two grooves 101 is mainly used for the wheel assembly 200 to travel. The positions of the two grooves 101 need to correspond to the two side plates 201 on the wheel assembly 200. The rolling trajectory of the clamping assembly 300 on the side plate 201 can be circular, elliptical, or other annular shapes, as long as it can... During the movement of the wheelset 200, some clamping groups 300 can be used in conjunction with some anti-detachment posts 102 in the groove 101. Since the anti-detachment posts 102 are arranged in a straight line in the groove 101, the clamping groups 300 that cooperate with the anti-detachment posts 102 need to also move in a straight line. That is, the lower side of the movement trajectory of the clamping groups 300 needs to be straight as well. The clamping groups 300 can be connected by a pull rod 313. At the same time, the pull rod 313 can limit the distance between two adjacent clamping groups 300 so that it matches the distance between two adjacent anti-detachment posts 102.

[0023] The support frame 301 in the clamping assembly 300 can support the auxiliary platform 302 and the clamping plate 303. The rotation axis of the two clamping plates 303 is set parallel to the axis of the anti-detachment column 102. In this way, when the two clamping plates 303 need to clamp the anti-detachment column 102, the two clamping plates 303 only need to rotate downward to both sides of the anti-detachment column 102 to clamp and fix the anti-detachment column 102. The side clamping surface 304 is mainly used to match the shape of the outer wall of the anti-detachment column 102 to improve the clamping effect.

[0024] In use, the wheel assembly 200 moves on the track 100, and the side plate 201 moves synchronously with the wheel assembly 200. Several clamping groups 300 on the side plate 201 rotate. When the clamping group 300 moves to the position corresponding to an anti-detachment post 102 on the groove 101, the two clamping plates 303 on the clamping group 300 are located on both sides of the anti-detachment post 102, respectively. The two clamping plates 303 close together, and the two clamping plates 303 use their upper side clamping surfaces 304 to press and fix the anti-detachment post 102. At this time, the clamping group 300 and the anti-detachment post 102 are relatively fixed. As the wheel assembly 200 moves, the clamping group 300 performs linear motion during its rotational motion. During this time, the wheel assembly 200 is held in place by the clamping group 300. When the clamping assembly 300 is connected to the track 100, and moves to a fixed position, the two clamping plates 303 on it separate from each other and stop clamping the anti-derailment column 102. At this time, the clamping assembly 300 continues to rotate and moves to the initial position on the side plate 201. This realizes the cyclic use of the clamping assembly 300 and the repeated cooperation with the corresponding anti-derailment column 102. During the cycle of several clamping assemblies 300, at least some clamping assemblies 300 remain connected to the anti-derailment column 102. Thus, as some clamping assemblies 300 separate from the anti-derailment column 102, a new clamping combination of the clamping plate 303 and the anti-derailment column 102 is formed, so that the wheel assembly 200 and the track 100 can always remain connected, achieving the anti-derailment effect.

[0025] The technical solution of this invention effectively solves the derailment problem of traditional wheel assembly 200 when traveling on track 100, making it easy to keep the wheel assembly 200 connected to track 100 and allowing the wheel assembly 200 to travel on track 100, thereby effectively avoiding phenomena such as crane tipping and gate leg bending caused by derailment; by using a number of clamping groups 300 to circulate on the side plate 201 as they follow the wheel assembly 200, some of the clamping groups 300 are always used in conjunction with some of the anti-derailment columns 102 on the groove 101, thereby achieving the effect of keeping the wheel assembly 200 connected to track 100 when traveling on track 100, and realizing the alternating and cyclical use of the clamping groups 300.

[0026] Furthermore, such as Figure 5 As shown, a connecting body 305 is provided on the clamping plate 303 and slides along the trajectory of the side clamping surface 304. A number of strips 306 are provided on the connecting body 305. A number of notches are opened on the side clamping surface 304. The strips 306 are slidably installed in the notches, and the strips 306 are coplanar with the side clamping surface 304. When the slat 306 is in working condition, both ends of the slat 306 are located on both sides of the vertical plane where the axis of the corresponding anti-detachment column 102 is located.

[0027] The connector 305 can support several strips 306, and the position of several strips 306 can be adjusted at one time by adjusting the position of the connector 305. By opening a notch on the side clamping surface 304, the working surface of the strips 306 can be made coplanar with the working surface of the side clamping surface 304, so that the side clamping surface 304 and several strips 306 can clamp the anti-detachment column 102 at the same time.

[0028] When the side clamping surface 304 contacts the outer wall of the anti-detachment column 102, it pushes the connecting body 305 to move. The connecting body 305 drives several strips 306 to move synchronously. The strips 306 move from the side of the anti-detachment column 102 in the horizontal direction to the bottom of the anti-detachment column 102. At this time, the two ends of the strips 306 are located on both sides of the vertical plane where the axis of the anti-detachment column 102 is located. Thus, the strips 306 are used to lock and hook the bottom of the anti-detachment column 102, so as to prevent the two clamping plates 303 from separating from the anti-detachment column 102 when the wheel set 200 moves upward on the track 100, thereby improving the anti-derailment effect of the wheel set 200 and the track 100.

[0029] Furthermore, such as Figure 6 and Figure 7 As shown, the clamping assembly 300 also includes a drive column 307 that is slidably disposed on the support frame 301. A connecting rod 308 is disposed on the drive column 307. The connecting rod 308 is connected to the connecting body 305 through a connecting arm 309. The connecting body 305 is connected to the clamping plate 303 through an elastic body 310.

[0030] The elastic body 310 provides an elastic force to the connector 305, so that in the initial position, the slats 306 and the side clamping surfaces 304 of the connector 305 coincide. When the drive column 307 moves on the support frame 301, it will push the connector 305 to move through the connecting rod 308 and the connecting arm 309. Since the connector 305 is restricted by the elastic body 310, the connector 305 can synchronously drive the clamping plate 303 to rotate on the auxiliary platform 302, so that the clamping plate 303 gradually moves closer to the anti-detachment device. When the side clamping surface 304 contacts the anti-detachment column 102, the clamping plate 303 stops moving. At this time, the driving column 307 can continue to move and push the connecting body 305 to move. The connecting body 305 overcomes the elastic force of the elastic body 310 and pushes several strips 306 to move to the bottom of the anti-detachment column 102, thereby completing the clamping work of the anti-detachment column 102. At this time, the movement of the clamping plate 303 and the strips 306 only needs to be driven by the linear movement driving column 307, which is convenient to operate and has a simple structure.

[0031] Furthermore, such as Figure 5 and Figure 7 As shown, a locking frame 311 is slidably mounted on the two auxiliary platforms 302. The locking frame 311 locks the two clamping plates 303 in the working state. The locking frame 311 is fixed relative to the drive column 307.

[0032] The inner shape of the clamping frame 311 corresponds to the shape formed by the two clamping plates 303. When the two clamping plates 303 clamp the anti-detachment column 102, the two clamping plates 303 are vertical. At this time, the clamping frame 311 can be moved to the outside of the two clamping plates 303. The clamping frame 311 is used to lock the two clamping plates 303, thereby preventing the two clamping plates 303 from separating or opening. In this way, the two clamping plates 303 can maintain the clamping state of the anti-detachment column 102, improving the connection firmness between the clamping assembly 300 and the anti-detachment column 102.

[0033] The outer dimensions of the two auxiliary platforms 302 on the support frame 301 need to be smaller than the inner dimensions of the clamping frame 311. This way, when idle, the clamping frame 311 can be moved to the outside of the two auxiliary platforms 302 to avoid interfering with the normal movement of the clamping plate 303.

[0034] In use, the drive column 307 drives the clamping plate 303 to rotate. At this time, the drive column 307 synchronously drives the clamping frame 311 to move. When the two clamping plates 303 are in the clamping state, the clamping frame 311 is still on the auxiliary table 302. As the drive column 307 continues to move, the clamping frame 311 is transferred from the auxiliary table 302 to the clamping plate 303 and clamps the two clamping plates 303. Thus, the movement of the drive column 307 can complete the work of driving the movement of the clamping plate 303 and locking the clamping plate 303.

[0035] Furthermore, the two sides of the anti-detachment column 102 can be clamped by the two side clamping surfaces 304, and the bottom of the anti-detachment column 102 can be limited by the strip 306. However, no corresponding limiting structure is set at the top of the anti-detachment column 102. In order to achieve all-round limitation of the anti-detachment column 102, such as Figure 7 As shown, the end of the drive column 307 is provided with a pressing platform 312 for pressing the anti-derailment column 102 in the vertical direction. At this time, the combination of the pressing platform 312 and the strip 306 can limit the upper and lower sides of the anti-derailment column 102, thereby improving the anti-derailment effect of the wheel set 200.

[0036] Furthermore, such as Figure 9 As shown, the anti-detachment column 102 includes a connecting column 103 and two top sleeves 104 disposed opposite to each other on the connecting column 103. The two top sleeves 104 move relative to each other and cooperate with the side wall of the clamping plate 303.

[0037] When the two clamping plates 303 clamp the anti-detachment column 102 through the clamping surfaces 304 on both sides, the clamping surfaces 304 are positioned on the connecting column 103. At this time, the clamping plates 303 can be fixed on the anti-detachment column 102 by bringing the top sleeves 104 on both sides closer together and squeezing the side walls of the clamping plates 303, thus preventing the clamping plates 303 from moving in the axial direction of the anti-detachment column 102 and improving the locking effect between the clamping assembly 300 and the anti-detachment column 102.

[0038] Furthermore, such as Figure 10 As shown, threaded posts 105 are provided at both ends of the connecting post 103. The side top sleeve 104 is screwed to the threaded post 105. The cross-sectional shape of the connecting post 103 is elliptical and the ellipse is inclined. The threaded post 105 is rotatably mounted on the track 100. The side top sleeve 104 is movable along the axis of the connecting post 103. The two top sleeves 104 are connected by a spring piece 106.

[0039] In its natural state, the spring 106 pushes the two top sleeves 104 to separate. The elliptical cross-section of the connecting column 103 is inclined so that when the two clamping surfaces 304 squeeze the connecting column 103, the ellipse moves to a vertical state. That is, when the two clamping surfaces 304 clamp the connecting column 103, they can drive the connecting column 103 to rotate by a specified angle. At this time, the connecting column 103 can drive the threaded column 105 to rotate. Since the threaded column 105 is threadedly connected to the side top sleeves 104, it can actively drive the two top sleeves 104 to move closer to each other and squeeze the two side walls of the clamping plate 303, thereby completing the work of limiting the clamping group 300 in the axial direction of the anti-detachment column 102.

[0040] Furthermore, such as Figure 4 and Figure 8 As shown, an annular guide groove 202 is provided on the side wall of the side plate 201. The lower side of the annular guide groove 202 is set to a horizontal state. Two guide posts 203 are provided on the support frame 301. The guide posts 203 are slidably arranged in the annular guide groove 202.

[0041] The two guide posts 203 on the support frame 301 can both guide the movement trajectory of the support frame 301 and restrict its direction, thereby improving the stability of the support frame 301's movement. The horizontal area on the lower side of the annular guide groove 202 can provide a linear motion range for the rotational movement of the clamping assembly 300. Within this range, the clamping assembly 300 is used in combination with the anti-detachment post 102. The shape of the annular guide groove 202 can be set as follows: Figure 8 The shape can be capsule-shaped, or other shapes such as ellipse, as long as it allows the clamping assembly 300 to rotate and allows the clamping assembly 300 to perform linear motion of a specified length.

[0042] In some embodiments, to improve the movement stability of the clamping assembly 300, annular guide grooves 202 can be provided on both sides of the side plate 201, so that the support frame 301 can be guided by the four guide posts 203 on both sides of the side plate 201.

[0043] Furthermore, such as Figure 4 and Figure 8As shown, an annular drive groove 204 with the same shape as the annular guide groove 202 is provided on the side wall of the side plate 201. A recessed area 205 is provided at the bottom of the annular drive groove 204. Each drive post 307 is provided with a guide post 206 that cooperates with the annular drive groove 204.

[0044] The shape of the annular drive groove 204 is consistent with the shape of the annular guide groove 202. When the support frame 301 moves along the trajectory of the annular guide groove 202, the drive column 307 can move synchronously along the trajectory of the annular drive groove 204. When the guide column 206 on the drive column 307 moves to the position of the recessed area 205, in the vertical direction, the recessed area 205 can assist in pushing the guide column 206 and the drive column 307 to move downward. Thus, the movement of the drive column 307 drives the two clamping plates 303 to close with each other and the frame 311 to move downward, etc., which facilitates the provision of power for the movement of the drive column 307.

[0045] Furthermore, such as Figure 8 As shown, a helical gear 207, a helical gear column 208, and a lever column 209 are rotatably arranged on the side plate 201. The helical gear 207 is connected to the wheel set 200 in a transmission manner, and the helical gear 207 is connected to the helical gear column 208 in a transmission manner. A roller 210 connected to the lever column 209 in a transmission manner is provided on the helical gear column 208. A spiral groove is provided on the outer wall of the actuating post 209, and the guide post 206 is used in conjunction with the spiral groove.

[0046] When the wheel set 200 moves, it can provide rotational power to the helical gear 207. The helical gear 207 drives the actuating column 209 to rotate through the helical tooth column 208 and the roller 210. The helical groove on the actuating column 209 can drive the clamping group 300 to move through the guide column 206 on the drive column 307. The adjacent clamping groups 300 are connected by the pull rod 313, thereby providing power for the cyclic movement of several clamping groups 300.

[0047] Since the actuating post 209 is linear, both the annular guide groove 202 and the annular drive groove 204 need to have straight segments to facilitate the linear movement of the drive post 307 and its guide post 206 and their cooperation with the actuating post 209. Of course, the straight segment can also coincide with the straight area at the bottom of the annular guide groove 202, or a separate straight segment can be set at other positions on the annular guide groove 202. To ensure the continuity of operation of several clamping groups 300, the actuating post 209 must cooperate with at least one guide post 206 on the drive post 307.

[0048] It should be noted that the linear velocity of the wheel assembly 200 when it moves can be equal to or unequal to the linear velocity of the clamping assembly 300 under the annular guide groove 202 when it moves in a straight line. This is related to the rolling trajectory and turning radius of the clamping assembly 300, and also to the setting position of the anti-detachment post 102 in the groove 101. When the anti-detachment post 102 is positioned deeper in the groove 101, the linear velocity of the clamping assembly 300 needs to be higher than that of the wheel assembly 200. Therefore, by using the aforementioned helical gear 207, helical tooth post 208, actuating post 209, and roller 210, the linear velocity of the wheel assembly 200 and the clamping assembly 300 can be synchronized, ensuring that the clamping assembly 300 and the anti-detachment post 102 can be aligned and used in combination.

[0049] Although this application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made thereto without departing from the spirit and scope of this application. Accordingly, this specification and drawings are merely exemplary illustrations of the application as defined herein, and are to be considered as covering any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from its scope. Thus, if such modifications and modifications fall within the scope of this application and its equivalents, this application intends to include such modifications and modifications.

Claims

1. A derailment prevention device for a quayside container crane, characterized in that, The device includes a track and a wheel assembly that moves on the track. The track has two grooves that are opposite each other. Each groove has a plurality of anti-detachment posts arranged in it. Side plates are provided on both sides of the wheel assembly. The wheel assembly rotates on the side plates. A plurality of clamping groups are arranged in a ring on the side plates. A plurality of clamping groups rotate on the side plates. Some of the clamping groups on the side plates are used in conjunction with the corresponding anti-detachment posts. The clamping assembly includes a support frame, two auxiliary platforms disposed opposite to each other on the support frame, and a clamping plate rotatably disposed on each of the auxiliary platforms. The clamping plate has a side clamping surface that cooperates with the anti-detachment column. The adjacent support frames are rotatably connected by a tie rod.

2. The anti-derailment device for a quay container crane according to claim 1, characterized in that, The clamping plate is provided with a connecting body that slides along the trajectory of the side clamping surface. The connecting body is provided with a plurality of strips. The side clamping surface is provided with a plurality of notches. The strips are slidably installed in the notches, and the strips are coplanar with the side clamping surface. When the strip is in working condition, both ends of the strip are located on both sides of the vertical plane corresponding to the axis of the anti-detachment column.

3. The anti-derailment device for a quayside container crane according to claim 2, characterized in that, The clamping assembly further includes a drive column slidably disposed on the support frame, a connecting rod disposed on the drive column, the connecting rod being connected to the connecting body via a connecting arm, and the connecting body being connected to the clamping plate via an elastic body.

4. The anti-derailment device for a quay container crane according to claim 3, characterized in that, A locking frame is slidably mounted on the two auxiliary platforms. The locking frame locks the two clamping plates in the working state. The locking frame is fixed relative to the drive column.

5. The anti-derailment device for a quay container crane according to claim 3, characterized in that, The end of the drive column is provided with a pressing platform for squeezing the anti-detachment column in the vertical direction.

6. The anti-derailment device for a quay container crane according to claim 1, characterized in that, The anti-detachment column includes a connecting column and two side top sleeves disposed opposite to each other on the connecting column. The two side top sleeves move relative to each other and cooperate with the side wall of the clamping plate.

7. The anti-derailment device for a quay container crane according to claim 6, characterized in that, Both ends of the connecting column are provided with threaded columns, and the side top sleeve is screwed to the threaded column. The cross-sectional shape of the connecting column is elliptical and the ellipse is inclined. The threaded column is rotatably mounted on the track. The side top sleeve is movable along the axis of the connecting column. The two side top sleeves are connected by a spring piece.

8. The anti-derailment device for a quay container crane according to claim 3, characterized in that, An annular guide groove is provided on the side wall of the side plate. The lower side of the annular guide groove is set to a horizontal state. Two guide posts are provided on the support frame. The guide posts are slidably arranged in the annular guide groove.

9. A derailment prevention device for a quay container crane according to claim 8, characterized in that, The side plate has an annular drive groove with the same shape as the annular guide groove on its side wall. The bottom of the annular drive groove has a recessed area. Each drive post is provided with a guide post II that cooperates with the annular drive groove.

10. A derailment prevention device for a quayside container crane according to claim 9, characterized in that, The side plate is rotatably provided with a helical gear, a helical gear column, and a shifting column. The helical gear is driven by the wheel set, and the helical gear is driven by the helical gear column. The helical gear column is provided with rollers that are driven by the shifting column. A spiral groove is provided on the outer wall of the actuating column, and the guide column 2 is used in conjunction with the spiral groove.

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