Self-adaptive clamping method of rail clamping device in case of abnormal shape of rail

Abstract

The invention relates to a self-adaptive clamping method of a rail clamping device when a rail generates a special shape, and belongs to the technical field of rail clamping devices. The rail clamping device comprises a plurality of clamping units which are arranged in parallel; the multiple clamping units are arranged in the extending direction of the track and work independently. The self-adaptive clamping method of the rail clamping device when the rail generates the special shape comprises the following steps that part of the clamping units are arranged at the special-shaped part on the rail, and the other clamping units are arranged in front of and / or behind the special-shaped part in the arrangement direction of the rail; the multiple clamping units independently clamp the rail at the corresponding positions of the rail. According to the self-adaptive clamping method of the rail clamping device when the rail generates the special shape, part of the clamping units are arranged at the special-shaped part, the other clamping units are distributed in front of and / or behind the special-shaped part, and the clamping effect of the clamping units located at the special-shaped part is sacrificed, so that the other clamping units have the good clamping effect; therefore, the overall clamping effect of the rail clamping device is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of rail clamps, and in particular relates to an adaptive clamping method for a rail clamp when a track has an irregular shape. Background Art

[0002] Caissons, as key components of offshore structures, play a vital role in port construction. Caisson transport typically involves the coordinated operation of a capsule trolley, a jacking cylinder, and a rail clamp. The rail clamp secures the jacking cylinder by clamping the rails, while the telescopic motion of the jacking cylinder drives the capsule trolley back and forth.

[0003] Since the tracks are subjected to repeated loads for a long time, they are prone to wear and deformation. In addition, they are often laid on the ground or in underground trenches, and the impact of heavy objects falling may also cause damage to the track structure. When the track is bent or deformed or the structure is damaged, the effective contact area between the track clamp and the track is reduced, which will weaken the clamping effect of the track clamp. This will not only significantly reduce the efficiency of caisson transportation, but may also cause safety risks such as equipment displacement and caisson overturning. In the existing technology, the track usually needs to be frequently repaired to prevent the track from being bent or deformed or structurally damaged. Frequent track repairs not only increase economic costs, but also the track clamp cannot work during the maintenance period, which will directly affect the progress of the project.

[0004] Therefore, designing an adaptive clamping method that can reduce the dependence of the rail clamp on the track flatness or structural integrity and still have a good clamping effect under the condition of track bending deformation or structural damage is of great significance for the transportation of caissons. Summary of the Invention

[0005] In response to the shortcomings in the related art, the present invention provides an adaptive clamping method for a rail clamp when a track has an irregular shape. The rail clamp is designed to be composed of multiple independently arranged clamping units. When there is an irregular portion on the track, some clamping units are placed at the irregular portion, and other clamping units are placed in front of and / or behind the irregular portion. The multiple clamping units are independently clamped at corresponding positions on the track to avoid point contact between the rail clamp and the track due to the irregular portion, thereby reducing the overall clamping effect of the rail clamp.

[0006] The present invention provides an adaptive clamping method for a rail clamp when a rail is irregularly shaped. The rail clamp comprises a plurality of clamping units arranged in parallel; the plurality of clamping units are arranged along the extension direction of the rail and the plurality of clamping units operate independently of each other; the adaptive clamping method comprises the following steps: Some of the clamping units are placed at the special-shaped portion on the track, and are matched with the special-shaped portion separately; other clamping units are located in front of and / or behind the special-shaped portion along the setting direction of the track, so that the other clamping units are matched with other areas of the track to avoid the special-shaped portion; Each of the clamping units clamps a corresponding position of the track, and the clamping operations of the clamping units do not affect each other.

[0007] This technical solution designs the track clamp as multiple independently arranged clamping units. When there is a special-shaped portion in the track, some clamping units are placed at the special-shaped portion, and other clamping units are placed in front of and / or behind the special-shaped portion. Multiple clamping units are independently clamped at corresponding positions on the track to avoid point contact between the track clamp and the track due to the special-shaped portion, which reduces the clamping effect of the track clamp. By making multiple clamping units work independently and with the help of multiple clamping units working together, the adverse effects of the special-shaped portion are dispersed, thereby improving the clamping effect of the track clamp when the track has a special shape.

[0008] In some embodiments, the special-shaped portion is located on a side of the rail where the rail and the clamping unit are in contact with each other, and the special-shaped portion protrudes from side surfaces of other areas of the rail.

[0009] In some embodiments, when the track clamper clamps the track, the clamping unit and the special-shaped portion are in point contact, and the force applied to the special-shaped portion is greater than that on other areas of the track. Under the action of the clamping unit, the special-shaped portion is deformed toward the side of the track, so that the special-shaped portion has a tendency to gradually flatten against the side of the track.

[0010] In some embodiments, the contact area between the clamping unit and the profiled portion is smaller than the contact area between the clamping unit and other areas of the rail.

[0011] In some embodiments, the clamping unit includes two oppositely arranged clamping blocks, the middle parts of the clamping blocks are connected with a pin shaft, and the two clamping blocks are rotatably connected through the same pin shaft; the lower end of the clamping block is used to clamp the track; the pin shaft is arranged along the arrangement direction of the multiple clamping units, and the multiple clamping units are connected through the same pin shaft.

[0012] In this technical solution, the clamping unit is designed to include two clamping blocks connected by a rotating pin shaft, so that the clamping block can adaptively adjust the angle according to the shape of the track surface, fit closely to different curvatures or special-shaped surfaces, and enhance the clamping effect; and the pin shaft is set to one, and multiple clamping units are connected by the same pin shaft, which not only makes the overall structure of the track clamp simple and compact, but also facilitates the connection between multiple clamping units.

[0013] In some embodiments, the clamping unit further includes a clamping cylinder and a spring. The clamping cylinder is disposed between the two clamping blocks and can be extended and retracted along the direction in which the two clamping blocks are relatively disposed. The spring is located on top of the clamping blocks, with both ends of the spring correspondingly connected to the two clamping blocks. The clamping cylinder and the spring are located above the pin shaft. The clamping cylinder extends to drive the lower ends of the two clamping blocks to rotate toward each other, so that the two clamping blocks clamp the rail and the spring is stretched; The clamping cylinder contracts and the spring rebounds, pulling the upper ends of the two clamps toward each other and releasing the two clamps from the track.

[0014] In some embodiments, one of the clamping blocks is provided with a mounting groove, and the fixed end of the clamping cylinder is installed in the mounting groove; when the clamping cylinder is extended, the telescopic end of the clamping cylinder applies a thrust to the other clamping block; when the clamping cylinder is contracted, the telescopic end of the clamping cylinder does not apply a force to the other clamping block.

[0015] This technical solution enables the clamping cylinder to only drive the clamping block to clamp the track without driving the clamping block to loosen the track. On the one hand, it can reduce the force complexity of the clamping cylinder, reduce seal wear, and extend the service life of the hydraulic system. On the other hand, it can enable the clamping block to loosen the track in time under the rebound action of the spring.

[0016] In some embodiments, the clamping block with the mounting groove is the first clamping block, the first clamping block is provided with an oil circuit, the oil circuit is provided inside the first clamping block, the first clamping block is provided with a first port on the side facing the clamping cylinder, the first port is connected to the oil circuit, the first port is connected to the oil inlet of the clamping cylinder, and one end of the first clamping block in the length direction is provided with a second port connected to the oil circuit. After the oil enters the oil circuit from the second port, it passes through the first port and the oil inlet of the clamping cylinder into the interior of the clamping cylinder to drive the telescopic end of the clamping cylinder to extend and retract.

[0017] In this technical solution, the oil circuit is set inside the first clamping block to avoid interference with the clamping action by external pipelines, thereby enhancing the system's impact resistance and reliability; the oil is accurately transported through a fixed oil circuit, which can achieve precise control of the extension and contraction of the cylinder of each clamping unit, ensuring the consistency and stability of the clamping action.

[0018] In some embodiments, there are multiple clamping cylinders, which are arranged along the length direction of the pin shaft; there are multiple first ports, which are arranged along the length direction of the clamping block, and the multiple first ports are arranged one-to-one with the multiple clamping cylinders.

[0019] In some embodiments, the rail clamp further includes a front plate, which is provided on a clamping unit located at the end of the rail clamp, the front plate is connected to a push cylinder, and the bottom of the front plate is chamfered to prevent the front plate from interfering with the irregularly shaped track.

[0020] This technical solution provides a chamfer on the front plate so that the front plate can smoothly pass over the track protrusions or steps, avoiding hard collisions that may cause the track clamp to be unable to be positioned or structural damage.

[0021] Based on the above technical solution, the adaptive clamping method of the rail clamp in the embodiment of the present invention when the track is irregularly shaped can enable the rail clamp to still have a good clamping effect when the track is irregularly shaped; by differentially arranging the multiple independent clamping units of the rail clamp, some clamping units are precisely placed at the irregularly shaped part, and other clamping units are orderly distributed in front of and / or behind the irregularly shaped part. Although the clamping unit located at the irregularly shaped part may form point contact with the track due to the local protrusion of the track, resulting in its own clamping effect being limited, the other clamping units still have a good clamping effect, thereby ensuring the overall clamping effect of the rail clamp. By having multiple clamping units work together, the negative impact of the irregularly shaped part on the overall clamping performance of the rail clamp is effectively dispersed, avoiding the reduction of the clamping effect of the rail clamp due to the irregularly shaped part causing the rail clamp to make large-area point contact with the track as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 This is a schematic diagram of the structure of the hydraulic rail clamp, push cylinder, capsule trolley and track; Figure 2 Schematic diagram of the structure of a rail clamp in one embodiment of the adaptive clamping method of the rail clamp when the rail has an irregular shape; Figure 3 This is a structural schematic diagram of a clamping unit clamping a rail in one embodiment of the adaptive clamping method of the rail clamp when the rail is irregularly shaped; Figure 4 A schematic structural diagram of a clamping unit clamping a special-shaped portion on a rail in one embodiment of the adaptive clamping method of the rail clamp of the present invention when the rail is special-shaped; Figure 5 Schematic diagram of the structure of the clamping unit in one embodiment of the adaptive clamping method of the rail clamp when the rail has an irregular shape; Figure 6 This is a structural schematic diagram of an embodiment of the adaptive clamping method of the rail clamp when the rail is deformed, in which the clamping cylinder is installed on the first clamping block; Figure 7 This is a schematic structural diagram of the second clamping block in one embodiment of the adaptive clamping method of the rail clamp when the rail is irregularly shaped; Figure 8Schematic diagram of the structure of the first clamping block in one embodiment of the adaptive clamping method of the rail clamp when the rail has an irregular shape; Figure 9 This is a cross-sectional view of the first clamping block in one embodiment of the adaptive clamping method of the rail clamp of the present invention when the rail has an irregular shape.

[0023] In the picture: 1. Rail clamp; 2. Push cylinder; 3. Capsule trolley; 4. Track; 11. Clamping unit; 12. Front plate; 13. Pin; 111. Clamping block; 112. Bracket; 113. Lifting ring; 114. Clamping cylinder; 115. Booster valve; 1110, ear; 1111, first clamping block; 1112, second clamping block; 1113, mounting groove; 1114, second port; 1115, oil circuit; 1116, first port; 121, connecting ears; 41. Special-shaped department. DETAILED DESCRIPTION

[0024] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0026] The terms "first," "second," and "third" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first," "second," or "third" may explicitly or implicitly include one or more of such features.

[0027] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0028] like Figure 1 As shown, when the capsule trolley 3 is used to transport the caisson, the caisson is usually placed on the capsule trolley 3, and the capsule trolley 3 is moved by the extension of the pushing cylinder 2, and the end of the pushing cylinder 2 away from the capsule trolley 3 is connected to the track clamp 1, and the track clamp 1 is clamped on the track 4 to fix and support the pushing cylinder 2.

[0029] When the jacking cylinder 2 reaches its maximum stroke, the rail clamp 1 releases the rail 4, and the jacking cylinder 2 retracts, driving the rail clamp 1 along the rail 4 toward the jacking cylinder 2. After the rail clamp 1 is repositioned, it clamps the rail 4 again, and the jacking cylinder 2 extends again to continue pushing the capsule trolley 3. Through this cycle, the caisson is finally transported to the target location.

[0030] Track 4 is prone to wear and deformation due to frequent use, or it may be hit or collided by heavy objects, causing slight or moderate bending deformation of track 4, resulting in local bulge on one side of track 4, or slight or moderate structural damage on track 4, etc., which weakens the clamping effect of track clamp 1. This will not only significantly reduce the efficiency of caisson transportation, but may also cause safety risks such as equipment displacement and caisson overturning.

[0031] For ease of description, in the present invention, these deformations or local structural damages are referred to as irregular portions 41. It should be noted that the determination of what degree of bending deformation is mild or moderate and what degree of structural damage is mild or moderate is a conventional technical approach in the art and will not be elaborated herein.

[0032] Based on this, the present invention proposes an adaptive clamping method for a rail clamp when a track is irregularly shaped. The rail clamp 1 is designed to be composed of multiple independently arranged clamping units 11. When there is an irregularly shaped portion 41 in the track 4, some of the clamping units 11 can be placed at the irregularly shaped portion 41, and other clamping units 11 can be placed in front of and / or behind the irregularly shaped portion 41. The multiple clamping units 11 are independently clamped at corresponding positions of the track 4 to avoid point contact between the entire rail clamp 1 and the track 4 due to the irregularly shaped portion 41, thereby reducing the clamping effect of the rail clamp 1. The multiple clamping units 11 are made to work independently and collaboratively to disperse the adverse effects of the irregularly shaped portion 41 and improve the clamping effect of the rail clamp 1 when the track is irregularly shaped.

[0033] like Figure 2-Figure 4 As shown, in an exemplary embodiment of the adaptive clamping method of the rail clamp of the present invention when the track is irregularly shaped, the rail clamp 1 includes a plurality of clamping units 11 arranged in parallel; the plurality of clamping units 11 are arranged along the extension direction of the track 4, and the plurality of clamping units 11 work independently of each other; the adaptive clamping method of the rail clamp when the track is irregularly shaped includes the following steps: one or several clamping units 11 are placed at the irregularly shaped portion 41 on the track 4, and cooperate with the irregularly shaped portion 41 individually; other clamping units 11 are located in front of and / or behind the irregularly shaped portion 41 along the setting direction of the track 4, so that the other clamping units 11 cooperate with other areas of the track 4 to avoid the irregularly shaped portion 41; multiple clamping units 11 independently clamp the track 4 at corresponding positions on the track 4.

[0034] In the above-mentioned adaptive clamping method of the rail clamp when the rail is irregularly shaped, the multiple independent clamping units 11 of the rail clamp 1 are arranged in a differentiated manner, so that one clamping unit 11 is precisely placed at the irregular portion 41, and the other clamping units 11 are orderly distributed in front of and / or behind the irregular portion 41 to avoid the irregular portion 41. Although the clamping unit 11 located at the irregular portion 41 may form a point contact with the rail 4 due to the local protrusion of the rail 4, resulting in its own clamping effect being limited, the other clamping units 11 still have a good clamping effect, thereby avoiding the reduction of the clamping effect of the entire rail clamp 1 due to the irregular portion 41 of the rail 4.

[0035] like Figure 4 As shown, the special-shaped portion 41 is located on the side where the track 4 and the rail clamp 1 cooperate, and the special-shaped portion 41 protrudes from the side of other areas of the track 4. The track 4 forms a local protrusion on the special-shaped portion 41. When the rail clamp 1 contacts the special-shaped portion 41, under the action of the special-shaped portion 41, point contact is easily formed between the rail clamp 1 and the track 4, resulting in a reduction in the effective contact area between the rail clamp 1 and the track 4, thereby reducing the clamping effect of the rail clamp 1.

[0036] It should be noted that since the special-shaped portion 41 is in point contact with the clamping unit 11, the force applied to the special-shaped portion 41 is greater than that on other areas of the track 4. Under the clamping action of the clamping unit 11, the special-shaped portion 41 will be deformed toward the side of the track 4. The special-shaped portion 41 tends to be flattened against the side of the track 4. After the clamping unit 11 clamps the special-shaped portion 41 for a long time, the special-shaped portion 41 may be flattened, thereby restoring the side of the track 4 to its flatness.

[0037] Since the special-shaped portion 41 protrudes from other areas of the track 4 , the contact area between the clamping unit 11 and the special-shaped portion 41 is smaller than the contact area between the clamping unit 11 and other areas of the track 4 .

[0038] It should be noted that, in this embodiment, the special-shaped portion 41 is mainly described in detail by taking the protrusion provided on the track 4 as an example.

[0039] like Figure 5 As shown, each clamping unit 11 includes two oppositely arranged clamping blocks 111, the middle part of the clamping block 111 is connected to a pin shaft 13, and the two clamping blocks 111 are rotatably connected through the same pin shaft 13; the lower end of the clamping block 111 is used to clamp the rail 4; the pin shaft 13 is arranged along the arrangement direction of the multiple clamping units 11, and the multiple clamping units 11 are connected through the pin shaft 13.

[0040] It should be noted that the rail clamp 1 includes a pin shaft 13 , and the clamping blocks 111 of the plurality of clamping units 11 are connected to the same pin shaft 13 .

[0041] like Figure 6 As shown, the clamping unit 11 also includes a clamping cylinder 114 and a spring. The clamping cylinder 114 is arranged between the two clamping blocks 111, and the clamping cylinder 114 can be extended and retracted along the relative directions of the two clamping blocks 111; the spring is located at the top of the clamping block 111, and the two ends of the spring are correspondingly connected to the two clamping blocks 111; the clamping cylinder 114 and the spring are located above the pin shaft 13.

[0042] When the clamping cylinder 114 is extended, the lower ends of the two clamping blocks 111 rotate toward each other to clamp the track 4, and the spring is stretched at the same time; when the clamping cylinder 114 is contracted, the clamping cylinder 114 removes the force on the clamping blocks 111, and the spring rebounds, and the spring pulls the upper ends of the two clamping blocks 111 to rotate toward each other, so that the two clamping blocks 111 release the track 4 under the tension of the spring.

[0043] The rail clamp 1 adopts a clamping mechanism composed of a clamping cylinder 114 and a spring to achieve hydraulically driven clamping and spring reset release. This not only makes the overall structure of the rail clamp 1 compact, the operation reliable, and the clamping force large and stable, but also increases the safety and reliability of the rail clamp 1 during operation, preventing accidental loosening and difficulty in loosening after clamping.

[0044] like Figure 5 As shown, a lifting ring 113 is provided on the top of the clamping block 111 , and the rail clamp 1 can be transported by lifting the lifting ring 113 .

[0045] like Figure 5 As shown, a bracket 112 is provided on the top of the clamping block 111 , and both ends of the spring are correspondingly connected to the brackets 112 of the two clamping blocks 111 so that the spring applies tension to the two clamping blocks 111 .

[0046] like Figure 6 and Figure 7 As shown, ears 1110 are respectively provided on opposite sides of the two clamping blocks 111 . The ears 1110 are provided with communicating holes for the pin shaft 13 to pass through, so that the two clamping blocks 111 are rotatably connected through the pin shaft 13 .

[0047] There are multiple ears 1110 , which are arranged along the length direction of the clamping block 111 ; the ears 1110 of two clamping blocks 111 are spaced apart from each other.

[0048] In some embodiments, the ear 1110 is connected to the clamping block 111 by fasteners such as bolts or screws.

[0049] It should be noted that the fixed end of the clamping cylinder 114 is fixedly connected to one of the clamping blocks 111, and the telescopic end of the clamping cylinder 114 applies a thrust to the other clamping block 111 when the clamping cylinder 114 extends, and does not apply a force to the other clamping block 111 when the clamping cylinder 114 contracts.

[0050] For the sake of convenience, the clamping block 111 connected to the fixed end of the clamping cylinder 114 is called the first clamping block 1111 , and the clamping block 111 matched with the telescopic end of the clamping cylinder 114 is called the second clamping block 1112 .

[0051] The fixed end of the clamping cylinder 114 is provided with an inlet and outlet. The oil enters the fixed end to drive the telescopic end to extend; the oil leaves the fixed end to drive the telescopic end to contract. This is common knowledge in the field and will not be described in detail.

[0052] like Figure 8 As shown, the first clamping block 1111 is provided with a mounting groove 1113 , which is located on the side of the first clamping block 1111 facing the second clamping block 1112 , and the fixed end of the clamping cylinder 114 is mounted in the mounting groove 1113 .

[0053] like Figure 9 As shown, the first clamping block 1111 is provided with an oil passage 1115, which is disposed within the interior of the first clamping block 1111. The first clamping block 1111 is provided with a first port 1116, which is in communication with the oil passage 1115. The first port 1116 is disposed at the bottom of the mounting groove 1113 and is in communication with the mounting groove 1113, so that when the clamping cylinder 114 is mounted within the mounting groove 1113, the first port 1116 is in communication with the oil inlet of the clamping cylinder 114. A second port 1114, which is in communication with the oil passage 1115, is disposed at one end of the lengthwise direction of the first clamping block 1111. Oil enters the oil passage 1115 from the second port 1114, passes through the first port 1116, and then enters the interior of the clamping cylinder 114 through the oil inlet of the clamping cylinder 114, thereby driving the telescopic end of the clamping cylinder 114 to extend and retract.

[0054] It should be noted that the length of the clamping block 111 is the same as the arrangement direction of the clamping units 11 .

[0055] like Figure 6As shown, a boost valve 115 is provided at the second port 1114. The boost valve 115 is used to increase the oil pressure in the oil circuit 1115. When the oil pump reaches the set pressure, the oil pressure in the oil circuit 1115 can be increased through the boost valve 115 so that the clamping cylinder 114 can drive the clamping block 111 to better clamp the rail 4.

[0056] There are multiple clamping cylinders 114, which are arranged along the length direction of the pin shaft 13. The multiple clamping cylinders 114 are used to drive the same clamping unit 11 to work. The multiple clamping cylinders 114 work simultaneously to make the clamping block 111 evenly contact the rail 4.

[0057] When there are multiple clamping cylinders 114 , there are also multiple first ports 1116 . The multiple first ports 1116 are arranged along the length direction of the clamping block 111 , and the multiple first ports 1116 are arranged in a one-to-one correspondence with the multiple clamping cylinders 114 .

[0058] By arranging the oil circuit 1115 inside the first clamping block 1111, arranging the first port 1116 on the side of the first clamping block 1111 facing the second clamping block 1112, and arranging the second port 1114 at one end in the length direction of the first clamping block 1111, the pipeline layout of the rail clamp 1 is simplified to avoid entanglement between the pipelines and affect the normal operation of the clamping cylinder 114.

[0059] It should be noted that during processing, blind holes can be drilled along the length direction of the first clamping block 1111 by drilling equipment to form the oil circuit 1115 and the second port 1114. After the oil circuit 1115 and the second port 1114 are processed, a hole is drilled on the side of the first clamping block 1111 facing the second clamping block 1112 to form the first port 1116 connected to the oil circuit 1115 on the side of the first clamping block 1111 facing the second clamping block 1112.

[0060] In the same clamping unit 11, since the oil enters the oil circuit 1115 from the second port 1114 and flows sequentially along the length direction of the first clamping block 1111, the time for the oil to flow through multiple first ports 1116 is different, resulting in multiple clamping cylinders 114 not extending at the same time. Under the influence of the flow factor of the oil, there is a time difference between the extension actions of the multiple clamping cylinders 114, and the multiple clamping cylinders 114 extend sequentially in chronological order along the flow direction of the oil.

[0061] A plurality of clamping units 11 are arranged along the length direction of the clamping block 111, in order to facilitate the connection between the rail clamp 1 and the push cylinder 2. Figure 2-Figure 4As shown, the rail clamp 1 also includes a front plate 12, which is arranged in the clamping unit 11 near the push cylinder 2, and the front plate 12 is connected to the pin 13. The front plate 12 is located at one end of the length direction of the clamping block 111; a connecting ear 121 is provided on the side of the front plate 12 away from the clamping block 111, and the connecting ear 121 is used to connect to the push cylinder 2.

[0062] When the rail clamp 1 clamps the rail 4, the pushing cylinder 2 extends to drive the capsule trolley 3 to move; when the rail clamp 1 releases the rail 4, the pushing cylinder 2 contracts to drive the rail clamp 1 to move along the rail 4.

[0063] When the irregular portion 41 is formed on the rail 4 , the top surface of the rail 4 may also be affected by the irregular portion 41 and deformed. Therefore, a chamfer is provided at the bottom of the front plate 12 to prevent the front plate 12 from interfering with the rail 4 .

[0064] Through the description of multiple embodiments of the adaptive clamping method of the rail clamp when the rail is irregularly shaped, it can be seen that the adaptive clamping method of the rail clamp when the rail is irregularly shaped has at least one or more of the following advantages: 1. Through the coordinated work of multiple clamping units 11, the negative impact of the special-shaped portion 41 on the overall clamping performance of the rail clamp 1 is effectively dispersed, avoiding the reduction of the overall clamping effect of the rail clamp 1 due to the special-shaped portion 41 causing the rail clamp 1 to make large-area point contact with the track 4. When the track 4 has a special-shaped portion 41, some clamping units 11 can be placed at the special-shaped portion 41, and other clamping units 11 can be placed in front of and / or behind the special-shaped portion 41. Multiple clamping units 11 are independently clamped at corresponding positions on the track 4. By sacrificing the clamping effect of the clamping unit 11 that cooperates with the special-shaped portion 41, it is ensured that the other clamping units 11 can contact the side of the track 4, so that the other clamping units 11 can apply clamping force to the track 4 from different positions, ultimately ensuring the overall clamping effect of the rail clamp 1 when the track 4 is shaped, and ensuring the stability and safety of the caisson transportation operation.

[0065] 2. The clamping unit 11 adopts a clamping mechanism composed of a clamping cylinder 114 and a spring to realize hydraulically driven clamping and spring reset release. When the clamping cylinder 114 is extended, it clamps the track 4 and the spring is stretched; when the clamping cylinder 114 is contracted, the spring pulls the clamping block 111 to release the track 4. This clamping mechanism composed of a clamping cylinder 114 and a spring not only realizes reliable clamping and releasing actions, but also prevents accidents to a certain extent. The reset function of the spring ensures that the clamping block 111 can smoothly release the track 4 after the clamping cylinder 114 contracts, avoiding the problem of difficulty in releasing after clamping; at the same time, during normal operation, the two cooperate with each other to effectively prevent accidental loosening caused by external interference and other factors, thereby increasing the safety and reliability of the track clamp 1 during operation.

[0066] 3. By designing multiple clamping cylinders 114, arranged along the length of the pin 13, the multiple clamping cylinders 114 drive the same clamping unit 11 to operate simultaneously, ensuring that the clamping block 111 can evenly contact the rail 4. The coordinated force of the multiple clamping cylinders 114 can provide greater clamping force than a single clamping cylinder 114. Furthermore, the uniform action of the multiple clamping cylinders 114 ensures that the clamping force is evenly distributed on the rail 4. This not only increases the clamping force of the rail clamp 1, but also enables the rail clamp 1 to stably clamp the rail 4, further enhancing the reliability of the clamp 1 clamping the rail 4.

[0067] 4. By arranging the oil passage 1115 inside the clamping block 111 and using the clamping block 111 to transport the oil, not only can the pipeline be omitted, but also the entanglement of the pipeline can be avoided to affect the normal operation of the clamping cylinder 114.

[0068] 5. The rail clamp 1 is provided with a front plate 12 and connected to the push cylinder 2 via a connecting ear 121, enabling the coordinated operation of the rail clamp 1, the push cylinder 2, and the capsule trolley 3. A chamfer is provided at the bottom of the front plate 12 to prevent interference between the front plate 12 and the rail 4, taking into account the possibility that the irregularly shaped portion 41 of the rail 4 may cause deformation of the top surface. This ensures that the rail clamp 1 moves and operates smoothly on the rail 4, and improves the stability of the overall equipment operation.

[0069] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0070] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the same. Although the present invention has been described in detail with reference to preferred embodiments, persons skilled in the art should understand that the specific implementation methods of the present invention may still be modified or some technical features may be replaced by equivalents without departing from the spirit of the technical solutions of the present invention, and all of these should fall within the scope of the technical solutions claimed for protection by the present invention.

Claims

1. A self-adaptive clamping method for a rail clamp when a track is deformed, characterized in that: The rail clamp includes a plurality of clamping units arranged in parallel; the plurality of clamping units are arranged along the extension direction of the rail, and the plurality of clamping units work independently of each other; the adaptive clamping method includes the following steps: Some of the clamping units are placed at the special-shaped portion on the track, and are matched with the special-shaped portion separately; other clamping units are located in front of and / or behind the special-shaped portion along the setting direction of the track, so that other clamping units are matched with other areas of the track to avoid the special-shaped portion; Each of the clamping units clamps a corresponding position of the track, and the clamping operations of the clamping units do not affect each other.

2. The adaptive clamping method of the rail clamp according to claim 1 when the rail has an irregular shape, characterized in that: The special-shaped portion is located on a side where the track and the clamping unit are in contact with each other, and the special-shaped portion protrudes from the side surfaces of other areas of the track.

3. The adaptive clamping method of the rail clamp when the rail is shaped according to claim 2, characterized in that: When the track clamper clamps the track, the clamping unit is in point contact with the special-shaped portion, and the force applied to the special-shaped portion is greater than that on other areas of the track. Under the action of the clamping unit, the special-shaped portion is deformed toward the side of the track, so that the special-shaped portion has a tendency to be gradually flattened against the side of the track.

4. The adaptive clamping method of the rail clamp when the rail is deformed according to claim 1, characterized in that: The contact area between the clamping unit and the special-shaped portion is smaller than the contact area between the clamping unit and other areas of the track.

5. The adaptive clamping method of the rail clamp when the rail is deformed according to claim 1, characterized in that: The clamping unit includes two oppositely arranged clamping blocks, the middle part of the clamping blocks is connected with a pin shaft, and the two clamping blocks are rotatably connected through the same pin shaft; the lower end of the clamping block is used to clamp the track; the pin shaft is arranged along the arrangement direction of the multiple clamping units, and the multiple clamping units are connected through the same pin shaft.

6. The adaptive clamping method of the rail clamp when the rail is deformed according to claim 5, characterized in that: The clamping unit further includes a clamping cylinder and a spring. The clamping cylinder is disposed between the two clamping blocks and can be extended and retracted along the direction in which the two clamping blocks are relatively disposed. The spring is located on top of the clamping blocks, and both ends of the spring are correspondingly connected to the two clamping blocks. The clamping cylinder and the spring are located above the pin shaft. The clamping oil cylinder is extended to drive the lower ends of the two clamping blocks to rotate toward each other, so that the two clamping blocks clamp the rail and the spring is extended; The clamping oil cylinder contracts and the spring rebounds to pull the upper ends of the two clamping blocks to rotate toward each other, so that the two clamping blocks release the track.

7. The adaptive clamping method of the rail clamp when the rail is deformed according to claim 6, characterized in that: One of the clamping blocks is provided with a mounting groove, and the fixed end of the clamping cylinder is installed in the mounting groove; when the clamping cylinder is extended, the telescopic end of the clamping cylinder applies a thrust to the other clamping block; when the clamping cylinder is contracted, the telescopic end of the clamping cylinder does not apply a force to the other clamping block.

8. The adaptive clamping method of the rail clamp when the rail is deformed according to claim 7, characterized in that: The clamping block in which the mounting groove is set is a first clamping block, and the first clamping block is provided with an oil circuit, and the oil circuit is provided inside the first clamping block, and the first clamping block is provided with a first port on the side facing the clamping cylinder, and the first port is connected with the oil circuit, and the first port is connected with the oil inlet of the clamping cylinder, and one end of the first clamping block in the length direction is provided with a second port connected with the oil circuit, and the oil enters the oil circuit from the second port and then passes through the first port and the oil inlet of the clamping cylinder into the interior of the clamping cylinder to drive the telescopic end of the clamping cylinder to extend and retract.

9. The adaptive clamping method of the rail clamp when the rail is deformed according to claim 8, characterized in that: There are multiple clamping cylinders, which are arranged along the length direction of the pin shaft; there are multiple first ports, which are arranged along the length direction of the clamping block, and the multiple first ports are arranged in a one-to-one correspondence with the multiple clamping cylinders.

10. The self-adaptive clamping method of the rail clamp when the rail is deformed according to claim 1, characterized in that: The rail clamp further comprises a front plate, which is arranged on the clamping unit at the end of the rail clamp, the front plate is connected to a push cylinder, and the bottom of the front plate is provided with a chamfer to prevent the front plate from interfering with the special-shaped portion.

Images