Quick-release crawler-type PCCP pipe installation trolley

Abstract

The present invention relates to the technical field of crawler chassis, and particularly to a quick-disassembly crawler-type PCCP pipeline installation trolley. When the first frame body is assembled to the second frame body, an external device is used to lift the crawler assembly upward, and the crawler assembly is moved so that the downward opening of the hook catches the rotating shaft in the upper card slot. Then, the first frame body is released, and under the action of its own weight, the hook rotates around the rotating shaft to prompt the connecting ear to be inserted into the lower card slot. At this time, the hook and the rotating shaft only bear the horizontal force transmitted by the first frame body. The connecting pin shaft is inserted into the first pin hole and the second pin hole. At that time, the pin shafts in the first pin hole and the second pin hole bear the vertical force transmitted by the first frame body and the second frame body and the horizontal force during steering, so that the first frame body and the second frame body are connected together. By using the cooperation of the hook and the rotating shaft and the cooperation of the lower card slot and the connecting ear, the convenience of assembling the first frame body and the second frame body can be improved, and the effect of quick disassembly and assembly can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of crawler chassis, and in particular to a quick-disassembly crawler-type PCCP pipe installation trolley. Background Art

[0002] At present, the installation of the crawler assembly of crawler-type construction machinery mostly uses bolt connection, and it is difficult to calibrate during the installation process. The installation of the crawler assembly is time-consuming. For some working environments where the crawler assembly needs to be completely disassembled, transported to the construction site in a scattered manner, and then assembled, reinstallation requires a large amount of work, which is not conducive to the timely start of construction. When installing the pins of a small number of crawler-type construction machinery with pin connections for the crawler assembly, the positions of the reference pins and the pin holes are required. For the crawler assembly itself, it is relatively heavy, and it is also difficult to calibrate. Moreover, when bearing a large load, the frame stiffness of the ordinary pin connection is weak. A new installation method for the crawler assembly is needed, which can quickly disassemble and assemble the crawler assembly and improve the disassembly and assembly efficiency of the whole crawler-type construction machinery. Therefore, a quick-disassembly crawler-type PCCP pipe installation trolley is needed. Summary of the Invention

[0003] In view of the above problems, the present invention is proposed to provide a quick-disassembly crawler-type PCCP pipe installation trolley that can overcome the above problems or at least partially solve the above problems, and can solve the problem of inconvenient disassembly and assembly of the traditional crawler assembly, achieving the purpose of quick disassembly, assembly and quick calibration.

[0004] Specifically, the present invention provides a quick-disassembly crawler-type PCCP pipe installation trolley, including:

[0005] A crawler assembly, including a first frame extending forward and backward and a belt body wound around it. A lifting lug and a hook are formed on the top of the first frame. The lifting lug and the hook are spaced apart in the front-back direction, and the hook opens downward. A connecting ear is formed at the bottom of the first frame, and a first pin hole penetrating through the front and back is defined in the connecting ear, and the connecting ear and the hook are both on the left or right side of the first frame;

[0006] A frame, connected between two groups of the crawler assemblies spaced apart left and right, and including a second frame connected to the first frame. An upper slot and a lower slot are formed on the second frame. Among them, the upper slot opens upward, and a rotating shaft extending forward and backward is arranged in the upper slot, and the rotating shaft is inserted into the downward opening of the hook. Among them, the lower slot opens towards the first frame and accommodates the connecting ear, and second pin holes aligned with the first pin hole in the front and back are defined on the front and back sides of the lower slot; A connecting pin shaft is inserted into the pin holes, and the connecting pin shaft is connected between the first frame and the second frame; and

[0007] When the lug of the crawler assembly is configured to be lifted upward by an external device, the rotating shaft of the second frame body is inserted into the downward opening of the hook from bottom to top; then, when the first frame body is relaxed or the second frame body is lifted upward, the first frame body rotates around the rotating shaft under its own weight to cause the connecting ear to be inserted into the lower card slot, and the first pin hole and the second pin hole are aligned; then, a connecting pin shaft is inserted into the first pin hole and the second pin hole so that the first frame body and the second frame body are connected together;

[0008] A frame is further constructed on the upper side of the second frame body. The frame extends forward of the crawler assembly, and the downward projection of the frame falls into the inner cavity between the two groups of crawler assemblies.

[0009] The cooperation between the first frame body and the belt body is used to ensure the stability during the operation of the bogie. The lug at the top of the first frame body can facilitate the hoisting during the assembly of the first frame body. When the first frame body is assembled to the second frame body, the crawler assembly is lifted upward by an external device, and the crawler assembly is moved so that the downward opening of the hook hooks the rotating shaft in the upper card slot. Then, the first frame body is relaxed, and the hook rotates around the rotating shaft under the action of the self-weight of the first frame body to cause the connecting ear to be inserted into the lower card slot. At this time, the hook and the rotating shaft only bear the horizontal force transmitted by the first frame body. Wait until the first pin hole and the second pin hole are aligned; then, a connecting pin shaft is inserted into the first pin hole and the second pin hole. At that time, the pin shafts in the first pin hole and the second pin hole bear the vertical force and the horizontal force during turning transmitted by the first frame body and the second frame body, so that the first frame body and the second frame body are connected together. The cooperation between the hook and the rotating shaft and the cooperation between the lower card slot and the connecting ear can improve the convenience during the assembly of the first frame body and the second frame body and achieve the effect of quick disassembly and assembly.

[0010] By constructing a frame on the upper side of the second frame body, when supporting the PCCP pipeline, the frame extends into the PCCP pipeline, and the PCCP pipeline is located in the inner cavity between the crawler assemblies, which provides great convenience for the PCCP pipeline.

[0011] Optionally, a first horizontal pin shaft through groove is constructed at the middle position of the first frame body, and a second horizontal pin shaft through groove is constructed on the second frame body. When the first frame body and the second frame body are connected together, a horizontal pin shaft is inserted between the first horizontal pin shaft through groove and the second horizontal pin shaft through groove to bear the vertical force transmitted by the first frame body and the second frame body and the driving force of the belt body.

[0012] By arranging the first horizontal pin shaft through groove at the central position of the first frame body and connecting it with the second horizontal pin shaft through groove through a horizontal pin shaft, it can bear the vertical force transmitted between the first frame body and the second frame body and the driving force of the crawler assembly. The horizontal pin shaft connects the first frame body and the second frame body, which can ensure the synchronism of the first frame body and the second frame body during movement.

[0013] Optionally, a hook seat extending in the horizontal direction is provided on the upper side of the first frame body. A hook groove is formed at the root of the hook. When the hook is assembled on the first frame body, the hook seat is embedded in the hook groove. The root of the hook is bounded by the groove and is respectively connected to the upper side of the first frame body and the side surface of the first frame body.

[0014] By using the hook seat extending on the upper side of the first frame body and matching with the hook groove formed at the root of the hook, when the hook is assembled on the first frame body, the hook seat is embedded in the hook groove, which can achieve the preliminary positioning effect of the hook. And, the connection part between the hook groove and the hook seat can be welded to improve the connection stability between the hook and the hook seat. The root of the hook is bounded by the groove and is respectively connected to the upper side of the first frame body and the side surface of the first frame body, which can disperse the horizontal force transmitted by the second frame body at the hook to the upper side of the first frame body and the side surface of the first frame body, improving the use reliability of the hook.

[0015] Optionally, the connecting ear is arranged on the lower side of the hook. The connecting ear is inclined downward on the first frame body, and the width dimension of the root of the connecting ear is greater than the radial dimension of the front end of the connecting ear to increase the connection area between the root of the connecting ear and the first frame body.

[0016] By arranging the connecting ear inclined downward on the first frame body, during hoisting, under the action of the gravity of the first frame body, the hoisting machine slowly lowers the first frame body, and the connecting ear can be inserted into the lower card slot more smoothly. In order to bear the vertical force transmitted by the vehicle frame and the horizontal force during steering, the width dimension of the root of the connecting ear is greater than the radial dimension of the front end of the connecting ear to increase the connection area between the root of the connecting ear and the first frame body and improve the connection stability between the connecting ear and the first frame body. A second pin hole communicating with the lower card slot is formed on the second frame body. Setting the second pin hole along the length direction of the first frame body in parallel can improve the use stability of the connecting pin shaft in the second pin hole and the convenience during assembly.

[0017] Optionally, two groups of the second frame bodies are symmetrically arranged between the crawler assemblies. The second frame body is an L-shaped second frame body. And, the short side parts of the two groups of second frame bodies are connected oppositely, the long side parts of the two groups of second frame bodies are respectively connected to the first frame body, the upper card slot and the lower card slot are both arranged in the long side part of the second frame body, and the short side part of the second frame body is arranged close to the rear side of the first frame body.

[0018] By arranging both the upper and lower card slots in the long sides of the second frame, the large size of the long sides of the second frame can be utilized to improve the connection stability between the second frame and the first frame, and the short sides of the second frame are arranged close to the rear side of the first frame, which can facilitate the installation of equipment on the rear side of the frame, provide sufficient working space for the long sides of the second frame, and better provide support space for the PCCP pipeline. The long sides of the second frame are connected to the first frame until the front end of the long sides of the second frame passes over the half position of the first frame. In this way, after the equipment is installed on the rear side of the frame, the force of the entire frame can be dispersed to the first frame, avoiding the situation where the front of the first frame is warped due to excessive force on the short sides of the second frame, and the root of the frame is assembled on the short sides of the second frame.

[0019] Optionally, two groups of base frames are symmetrically provided on the rear side of the short side of the second frame body, a connecting frame is provided between the two groups of base frames, the connecting frame and the base frames are arranged perpendicular to each other, a flange connecting seat is provided between the connecting frames of the two groups of base frames, the two sides of the flange connecting seat are respectively connected to the connecting frame by bolts, the size of the flange connecting seat is adjustable, and a connecting reinforcement plate is arranged between the outer side of the base frame and the short side of the second frame body.

[0020] By providing a flange connection seat between the connecting frames of the two groups of base frames, the connection stability and convenience between the two groups of base frames can be improved, and in actual use, according to the pipe diameter requirements of the PCCP pipe, the size of the flange connection seat can be adjusted to meet the support requirements of the PCCP pipe. The connecting frame and the base frame are arranged perpendicular to each other, which can improve the connection stability between the connecting frame and the base frame, and can provide more sufficient support space for the short side of the second frame to facilitate the installation of equipment on the short side of the second frame, and can also provide a more stable support effect for the short side of the frame and the second frame. By configuring a connecting reinforcement plate between the outer side of the base frame and the short side of the second frame, the reinforcement plate is used to improve the connection stability between the base frame and the short side of the second frame.

[0021] Optionally, a connecting base is provided at the root of the base frame connected to the short side of the second frame, and the connecting base is a trapezoidal base. A fixing base is provided on the upper side of the base frame, and bolt holes are provided on the fixing base. The lower side of the base frame is tilted downward and connected to the bottom side of the short side of the second frame to disperse the force of the base frame to the entire short side of the second frame. A base reinforcement plate is provided in the base frame along the vertical direction to increase the supporting strength of the base frame along the vertical direction.

[0022] By making the connection base that connects the root of the base frame to the short side of the second frame body a trapezoidal base, the contact area between the base frame and the short side of the second frame body can be increased, thereby improving the force stability of the base frame during use. By connecting the lower side of the base frame downwardly to the bottom side of the short side of the second frame body, the base frame can be made to be in full contact with the side surface of the second frame body in the vertical direction, so that the force on the base frame is dispersed along the vertical direction to the entire short side of the second frame body, thereby improving the support stability of the base frame during use. By vertically arranging a base frame reinforcement plate inside the base frame, the support strength of the base frame itself is improved by means of the base frame reinforcement plate to improve its support stability.

[0023] By providing a fixing seat on the upper side of the base frame and opening a bolt hole in the fixing seat, the connection convenience when installing the equipment on the base frame can be improved by means of the fixing seat, providing an installation base for the equipment installation.

[0024] Optionally, assembly bases are provided on the upper side end surfaces of both the short side of the second frame body and the upper side of the connecting frame. The assembly base is a hollow base, and a base assembly through groove is opened on the upper side of the assembly base.

[0025] By providing the assembly base, a positioning basis can be provided for the external device. Making the assembly base a hollow base can facilitate the installation process of the external device.

[0026] Optionally, a short side connection flange seat is provided between the short sides of the second frame body, and both sides of the short side connection flange seat are respectively bolt-connected to the short sides of the second frame body.

[0027] By using the short side connection flange seat, and the short side connection flange seat can be replaced with different sizes, so as to meet the width requirements when supporting PCCP pipes of different models, and can also improve the connection convenience of the short sides of the second frame body.

[0028] Optionally, the quick-disassembly crawler-type PCCP pipe installation trolley further includes:

[0029] An electric control device, which is arranged on the frame and its projection on the horizontal plane falls within the projection range of the bracket on the horizontal plane;

[0030] A laser ranging device, which is upwardly arranged at the front end of the frame and is electrically connected to the electric control device; and

[0031] The electric control device is configured to:

[0032] In response to an instruction to control the start of the traveling mechanism, use the laser ranging device to detect the distance between the obstacle and the frame, and record it as the measured distance;

[0033] When the measured distance remains at a first fixed value after decreasing, determine the depth at which the frame is inserted into the PCCP pipeline, denoted as the insertion depth, based on the speed of the traveling mechanism and the duration for which the measured distance remains at the first fixed value; wherein, the duration for which the measured distance remains at the first fixed value reflects the time from the first moment when the measured distance decreases to the first fixed value to the second moment when the speed of the traveling mechanism is zero.

[0034] When the measured distance starts to increase from the first fixed value, control the height of the frame based on the speed of increase of the measured distance and the insertion depth.

[0035] The electric control device is further configured to:

[0036] When the measured distance starts to change from the first fixed value, determine whether the change in the measured distance is a linear change.

[0037] If it is not, then control the crawler assembly to retreat.

[0038] By providing a laser ranging device that emits upward at the front end of the frame, when the frame is required to support the PCCP pipeline, use the laser ranging device to detect the distance between the inner wall of the PCCP pipeline and the frame. Under the first fixed value data of the measured distance, determine the depth at which the frame is inserted into the PCCP pipeline based on the speed of the traveling mechanism and the duration of the first fixed value. When the measured distance starts to increase from the first fixed value, it indicates that the PCCP pipeline on the lifting mechanism is tilted and slipping. Then, it is necessary to control the descent of the PCCP pipeline based on the speed of increase of the measured distance and the insertion depth to enable the PCCP pipeline to land smoothly.

[0039] During the process of the frame extending into the PCCP pipeline, observe whether the change in the measured distance is a linear change. If it is not a linear change, it proves that the PCCP pipeline is not aligned and there is a problem of twisting and tilting. Then, it is necessary to control the crawler assembly to retreat and adjust the horizontal, vertical, and height positions of the PCCP pipeline according to the change in the first fixed value in the twisted state, so as to better enable the PCCP pipeline to be accurately docked with the pipeline end.

[0040] In the technical solution of the present invention, by using the cooperation of the hook and the rotating shaft and the cooperation of the lower card slot and the connecting ear, the convenience of assembling the first frame body and the second frame body can be improved, achieving the effect of rapid disassembly and assembly.

[0041] Furthermore, in the technical solution of the present invention, the first frame body and the second frame body are connected by a horizontal pin shaft, which can bear the vertical force transmitted between the first frame body and the second frame body and the driving force of the crawler assembly, and can ensure the synchronism of the first frame body and the second frame body during movement.

[0042] Those skilled in the art will better understand the above and other objects, advantages and features of the present invention from the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings. Description of the Drawings

[0043] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings in an illustrative but not restrictive manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0044] Figure 1 is a schematic structural diagram of a first frame according to an embodiment of the present invention;

[0045] Figure 2 is a schematic structural diagram of a base frame according to an embodiment of the present invention;

[0046] Figure 3 is a schematic structural diagram of a horizontal pin shaft through groove according to an embodiment of the present invention;

[0047] Figure 4 is a schematic structural diagram of a hook according to an embodiment of the present invention;

[0048] Figure 5 is a schematic structural diagram of an ear plate pin shaft according to an embodiment of the present invention;

[0049] Figure 6 is a schematic structural diagram of a connection base according to an embodiment of the present invention.

[0050] Description of Element Numbers

[0051] 1. First frame; 2. Belt body; 3. Suspension ear; 4. Hook; 5. Connection ear; 6. First pin hole; 7. Second frame; 8. Upper card slot; 9. Lower card slot; 10. Second pin hole; 11. First horizontal pin shaft through groove; 12. Second horizontal pin shaft through groove; 13. Hook seat; 14. Hook groove; 15. Short side part; 16. Base frame; 17. Connection frame; 18. Flange connection seat; 19. Connection reinforcement plate; 20. Connection base; 21. Fixed seat; 22. Base frame reinforcement plate; 23. Assembly base; 24. Short side connection flange seat. Detailed Embodiments

[0052] The following refers to Figures 1 to 6to describe the embodiments of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features, that is, include one or more of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. When a certain feature "includes or contains" a certain or certain features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0053] Unless otherwise clearly stipulated and defined, the terms "arranged", "installed", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0054] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. That is, in the description of this embodiment, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", or "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0055] In the description of this embodiment, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0056] As Figure 1 shown, and with reference to Figures 2 to 6, an embodiment of the present invention provides a quick-release crawler-type PCCP pipeline installation trolley, including a crawler assembly, which includes a first frame body 1 extending forward and backward and a belt body 2 wound around it. At the top of the first frame body 1, a lifting lug 3 and a hook 4 are formed. The lifting lug 3 and the hook 4 are spaced apart in the front-rear direction, and the hook 4 opens downward; at the bottom of the first frame body 1, a connecting ear 5 is formed, and a first pin hole 6 penetrating through the front and rear is defined in the connecting ear 5, and the connecting ear 5 and the hook 4 are both on the left or right side of the first frame body 1;

[0057] A frame, connected between two groups of the crawler assemblies spaced left and right, and it includes a second frame body 7 connected to the first frame body 1. An upper clamping groove 8 and a lower clamping groove 9 are formed on the second frame body 7; wherein, the upper clamping groove 8 opens upward, and a rotating shaft extending forward and backward is arranged in the upper clamping groove 8, and the rotating shaft is inserted into the downward opening of the hook 4; wherein, the lower clamping groove 9 opens towards the first frame body 1 and accommodates the connecting ear 5, and second pin holes 10 aligned with the first pin hole 6 in the front and rear are defined on the front and rear sides of the lower clamping groove 9; a connecting pin shaft is inserted into the pin holes, and the connecting pin shaft connects the first frame body 1 and the second frame body 7; and

[0058] When the lifting lug 3 of the crawler assembly is configured to be lifted upward by an external device, the rotating shaft of the second frame body 7 is inserted into the downward opening of the hook 4 from bottom to top; then, when the first frame body 1 is relaxed or the second frame body 7 is lifted upward, the first frame body 1 rotates around the rotating shaft under its own weight to cause the connecting ear 5 to be inserted into the lower clamping groove 9, and the first pin hole 6 and the second pin hole 10 are aligned; then, the connecting pin shaft is inserted into the first pin hole 6 and the second pin hole 10, so that the first frame body 1 and the second frame body 7 are connected together;

[0059] A frame is further constructed on the upper side of the second frame body 7. The frame extends forward of the crawler assembly, and the downward projection of the frame falls into the inner cavity between the two groups of the crawler assemblies.

[0060] The first frame body 1 and the belt body 2 are used in cooperation to ensure the stability of the trolley during operation. The lifting lug 3 at the top of the first frame body 1 can facilitate the lifting and handling during the assembly of the first frame body 1. When assembling the first frame body 1 onto the second frame body 7, an external device is used to lift the crawler assembly upward, move the crawler assembly until the downward opening of the hook 4 hooks the rotating shaft in the upper card slot 8, and then release the first frame body 1. Under the action of its own weight, the hook 4 rotates around the rotating shaft to prompt the connecting ear 5 to insert into the lower card slot 9. At this time, the hook 4 and the rotating shaft only bear the horizontal force transmitted by the first frame body 1 until the first pin hole 6 and the second pin hole 10 are aligned; then, insert the connecting pin shaft into the first pin hole 6 and the second pin hole 10. At this time, the pin shafts in the first pin hole 6 and the second pin hole 10 bear the vertical force transmitted by the first frame body 1 and the second frame body 7 and the horizontal force during steering, so that the first frame body 1 and the second frame body 7 are connected together. By using the cooperation of the hook 4 and the rotating shaft, and the cooperation of the lower card slot 9 and the connecting ear 5, the convenience of assembling the first frame body 1 and the second frame body 7 can be improved, achieving the effect of quick disassembly and assembly.

[0061] Through the frame structure constructed on the upper side of the second frame body 7, when supporting the PCCP pipe, the frame extends into the interior of the PCCP pipe, and the PCCP pipe is located in the inner cavity between the crawler assemblies, which provides great convenience for the PCCP pipe.

[0062] In some embodiments of the present invention, a first horizontal pin shaft through slot 11 is constructed at the middle position of the first frame body 1, and a second horizontal pin shaft through slot 12 is constructed on the second frame body 7. When the first frame body 1 and the second frame body 7 are connected together, a horizontal pin shaft is inserted between the first horizontal pin shaft through slot 11 and the second horizontal pin shaft through slot 12 to bear the vertical force transmitted by the first frame body 1 and the second frame body 7 and the driving force of the belt body 2.

[0063] By arranging the first horizontal pin shaft through slot 11 at the center position of the first frame body 1 and connecting it with the second horizontal pin shaft through slot 12 through a horizontal pin shaft, it can bear the vertical force transmitted by the first frame body 1 and the second frame body 7 and the driving force of the crawler assembly. The horizontal pin shaft connecting the first frame body 1 and the second frame body 7 can ensure the synchronism of the first frame body 1 and the second frame body 7 during movement.

[0064] In some embodiments of the present invention, a hook seat 13 extending in the horizontal direction is provided on the upper side of the first frame body 1, and a hook groove 14 is constructed at the root of the hook 4. When the hook 4 is assembled on the first frame body 1, the hook seat 13 is embedded in the hook groove 14, and the root of the hook 4 is respectively connected to the upper side of the first frame body 1 and the side surface of the first frame body 1 with the groove as the boundary.

[0065] Using the hook seat 13 extending from the upper side of the first frame body 1 and cooperating with the hook groove 14 constructed at the root of the hook 4, when the hook 4 is assembled onto the first frame body 1, the hook seat 13 is embedded into the hook groove 14, which can achieve the preliminary positioning effect of the hook 4. Moreover, the connection part between the hook groove 14 and the hook seat 13 can adopt the welding method to improve the connection stability between the hook 4 and the hook seat 13. Taking the groove as the boundary at the root of the hook 4, it is respectively connected to the upper side of the first frame body 1 and the side surface of the first frame body 1, which can disperse the horizontal force transmitted by the second frame body 7 at the hook 4 to the upper side of the first frame body 1 and the side surface of the first frame body 1, and improve the use reliability of the hook 4.

[0066] In some embodiments of the present invention, the connecting ear 5 is arranged on the lower side of the hook 4. The connecting ear 5 is arranged obliquely downward on the first frame body 1. Moreover, the width dimension of the root of the connecting ear 5 is greater than the radial dimension of the front end of the connecting ear 5 to increase the connection area between the root of the connecting ear 5 and the first frame body 1.

[0067] Arranging the connecting ear 5 obliquely downward on the first frame body 1 can enable the hoisting machine to slowly lower the first frame body 1 under the action of the gravity of the first frame body 1 during hoisting, and the connecting ear 5 can be inserted into the lower card slot 9 more smoothly. In order to bear the vertical force transmitted by the vehicle frame and the horizontal force during steering, the width dimension of the root of the connecting ear 5 is greater than the radial dimension of the front end of the connecting ear 5 to increase the connection area between the root of the connecting ear 5 and the first frame body 1 and improve the connection stability between the connecting ear 5 and the first frame body 1. The second pin hole 10 communicating with the lower card slot 9 is constructed on the second frame body 7. Arranging the second pin hole 10 along the length direction of the first frame body 1 can improve the use stability of the connecting pin shaft in the second pin hole 10 and the convenience during assembly.

[0068] In some embodiments of the present invention, two groups of the second frame bodies 7 are symmetrically arranged between the crawler assemblies. The second frame body 7 is an L-shaped second frame body 7. Moreover, the short side parts 15 of the two groups of second frame bodies 7 are connected oppositely, the long side parts of the two groups of second frame bodies 7 are respectively connected to the first frame body 1, the upper card slot 8 and the lower card slot 9 are both arranged in the long side part of the second frame body 7, and the short side part 15 of the second frame body 7 is arranged close to the rear side of the first frame body 1.

[0069] By arranging both the upper slot 8 and the lower slot 9 inside the long side portion of the second frame body 7, the large size of the long side portion of the second frame body 7 itself can be utilized to improve the connection stability between the second frame body 7 and the first frame body 1. By arranging the short side portion 15 of the second frame body 7 close to the rear side of the first frame body 1, it is convenient to install equipment at the rear side of the vehicle frame, providing sufficient working space at the long side portion of the second frame body 7 and better providing a support space for the PCCP pipeline. By connecting the first frame body 1 with the long side portion of the second frame body 7 until the front end of the long side portion of the second frame body 7 crosses the half position of the first frame body 1, after installing equipment at the rear side of the vehicle frame, the overall vehicle frame force can be dispersed to the first frame body 1, avoiding the situation that the front end of the first frame body 1 tilts upward after the short side portion 15 of the second frame body 7 is overloaded. The root of the frame is assembled on the short side portion 15 of the second frame body 7.

[0070] In some embodiments of the present invention, two groups of base frames 16 are symmetrically arranged at the rear side of the short side portion 15 of the second frame body 7. A connecting frame 17 is arranged between the two groups of base frames 16. The connecting frame 17 and the base frame 16 are arranged perpendicular to each other. A flange connection seat 18 is arranged between the connecting frames 17 of the two groups of base frames 16. The two sides of the flange connection seat 18 are respectively connected to the connecting frame 17 by bolts. The size of the flange connection seat 18 is adjustable. A connecting reinforcing plate 19 is arranged between the outer side of the base frame 16 and the short side portion 15 of the second frame body 7.

[0071] By arranging a flange connection seat 18 between the connecting frames 17 of the two groups of base frames 16, the connection stability and connection convenience between the two groups of base frames 16 can be improved. And in actual use, according to the pipe diameter requirement of the PCCP pipeline, the size of the flange connection seat 18 can be adjusted to meet the support requirement for the PCCP pipeline. By arranging the connecting frame 17 and the base frame 16 perpendicular to each other, the connection stability between the connecting frame 17 and the base frame 16 can be improved, and it can also provide a more sufficient support space for the short side portion 15 of the second frame body 7 to facilitate the installation of equipment on the short side portion 15 of the second frame body 7, and can also provide a more stable support effect for the frame and the short side portion 15 of the second frame body 7. By arranging a connecting reinforcing plate 19 between the outer side of the base frame 16 and the short side portion 15 of the second frame body 7, the connection stability between the base frame 16 and the short side portion 15 of the second frame body 7 is improved by using the reinforcing plate.

[0072] In some embodiments of the present invention, a connection base 20 is provided at the root of the base frame 16 connected to the short side portion 15 of the second frame body 7. The connection base 20 is a trapezoidal base. A fixing seat 21 is provided on the upper side of the base frame 16, and bolt holes are formed in the fixing seat 21. The lower side of the base frame 16 is inclined downward to be connected to the bottom side of the short side portion 15 of the second frame body 7, so as to disperse the force on the base frame 16 to the entire short side portion 15 of the second frame body 7. A base frame reinforcement plate is arranged in the base frame 16 along the vertical direction to improve the support strength of the base frame 16 in the vertical direction.

[0073] By making the connection base 20 at the root of the base frame 16 connected to the short side portion 15 of the second frame body 7 be a trapezoidal base, the contact area between the base frame 16 and the short side portion 15 of the second frame body 7 can be increased, thereby improving the force stability of the base frame 16 during use. By connecting the lower side of the base frame 16 downward and obliquely to the bottom side of the short side portion 15 of the second frame body 7, the base frame 16 can be in full contact with the side surface of the second frame body 7 in the vertical direction, so that the force on the base frame 16 is dispersed to the entire short side portion 15 of the second frame body 7 in the vertical direction, thereby improving the support stability of the base frame 16 during use. By arranging a base frame reinforcement plate 22 in the base frame 16 along the vertical direction, the support strength of the base frame 16 itself is improved by using the base frame reinforcement plate 22 to improve its support stability.

[0074] By providing a fixing seat 21 on the upper side of the base frame 16 and arranging bolt holes in the fixing seat 21, the connection convenience when installing the equipment on the base frame 16 can be improved by using the fixing seat 21, providing an installation base for the equipment installation.

[0075] In some embodiments of the present invention, assembly bases 23 are provided on the upper side end surfaces of both the short side portion 15 of the second frame body 7 and the upper side end surface of the connection frame 17. The assembly bases 23 are hollow bases, and a base assembly through groove is formed on the upper side of the assembly bases 23.

[0076] By providing the assembly bases 23, a positioning basis can be provided for external devices. By making the assembly bases 23 be hollow bases, the installation process of external devices can be facilitated.

[0077] In some embodiments of the present invention, a short side connection flange seat 24 is provided between the short side portions 15 of the second frame body 7. Both sides of the short side connection flange seat 24 are bolted to the short side portions 15 of the second frame body 7 respectively.

[0078] By using the short side connection flange seat 24, and the short side connection flange seat 24 can be replaced with different sizes, so as to meet the width requirements when supporting PCCP pipes of different models, and the connection convenience of the short side portions 15 of the second frame body 7 can also be improved.

[0079] In some embodiments of the present invention, the quick-release crawler-type PCCP pipe installation trolley further includes:

[0080] An electric control device, which is arranged on the frame and whose projection on the horizontal plane falls within the projection range of the bracket on the horizontal plane;

[0081] A laser ranging device, which is arranged at the front end of the frame and emits upward, and is electrically connected to the electric control device; and

[0082] The electric control device is configured to:

[0083] In response to an instruction to control the start of the traveling mechanism, use the laser ranging device to detect the distance between the obstacle and the frame, and record it as the measured distance;

[0084] When the measured distance remains at a first fixed value after decreasing, determine the depth of insertion of the frame into the PCCP pipe, denoted as the insertion depth, according to the speed of the traveling mechanism and the duration for which the measured distance remains at the first fixed value; wherein, the duration for which the measured distance remains at the first fixed value reflects the time from the first moment when the measured distance decreases to the first fixed value to the second moment when the speed of the traveling mechanism becomes zero;

[0085] When the measured distance starts to increase from the first fixed value, control the height of the frame according to the increasing speed of the measured distance and the insertion depth;

[0086] The electric control device is further configured to:

[0087] When the measured distance starts to change from the first fixed value, determine whether the change in the measured distance is a linear change;

[0088] If not, control the crawler assembly to retreat.

[0089] By arranging a laser ranging device that emits upward at the front end of the frame, when the frame needs to support the PCCP pipe, use the laser ranging device to detect the distance between the inner wall of the PCCP pipe and the frame. Under the first fixed value data of the measured distance, determine the depth of insertion of the frame into the PCCP pipe according to the speed of the traveling mechanism and the duration of the first fixed value. When the measured distance starts to increase from the first fixed value, it indicates that the PCCP pipe on the jacking mechanism is tilted and sliding, then it is necessary to control the descent of the PCCP pipe according to the increasing speed of the measured distance and the insertion depth, so that the PCCP pipe can land smoothly.

[0090] During the process of the rack extending into the PCCP pipeline, observe whether the change in the measured distance is a linear change. If it is not a linear change, it proves that the PCCP pipeline is not aligned and there is a problem of distortion and inclination. Then, it is necessary to control the crawler assembly to retreat, and adjust the horizontal, vertical and height positions of the PCCP pipeline according to the change of the first fixed value in the distorted state, so as to better align the PCCP pipeline with the pipeline end for precise docking.

[0091] At this point, those skilled in the art should recognize that although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and determined to cover all these other variations or modifications.

Claims

1. A quick-detachable crawler-type PCCP pipeline installation trolley, characterized in that: include, The crawler track assembly comprises a first frame extending forward and backward and a belt body wrapped thereon, a lifting ear and a hook are formed on the top of the first frame, the lifting ear and the hook are spaced apart in the forward and backward direction, and the hook opens downward; a connecting ear is formed on the bottom of the first frame, a first pin hole penetrating forward and backward is defined on the connecting ear, and the connecting ear and the hook are both located on the left or right side of the first frame; A vehicle frame connected between the two groups of track assemblies spaced apart from each other, and comprising a second frame connected to the first frame, an upper slot and a lower slot being formed on the second frame; wherein the upper slot is upwardly open, and a rotating shaft extending forward and backward is arranged in the upper slot, and the rotating shaft is inserted into the downward opening of the hook; wherein the lower slot is open to the first frame and accommodates the connecting ear, and a second pin hole which is aligned with the first pin hole and communicates with the first pin hole is defined on the front and rear sides of the lower slot; a connecting pin is inserted into the pin hole, and the connecting pin is connected between the first frame and the second frame; and The lifting lug of the crawler assembly is configured such that when the lifting lug is lifted upward by an external device, the rotating shaft of the second frame is inserted from bottom to top into the downward opening of the hook; then, when the first frame is released or the second frame is lifted upward, the first frame rotates around the rotating shaft under the action of its own weight, so that the connecting lug is inserted into the lower slot, and the first pin hole is aligned with the second pin hole; then, the connecting pin is inserted into the first pin hole and the second pin hole, so that the first frame and the second frame are connected together; A frame is also constructed on the upper side of the second frame body, the frame extends to the front side of the crawler assembly, and the downward projection of the frame falls into the inner cavity between the two sets of crawler assemblies; Also includes: An electric control device, which is arranged on the frame, and whose projection on the horizontal plane falls within the projection range of the frame on the horizontal plane; a laser distance measuring device, which is disposed at the front end of the frame so as to emit upward and is electrically connected to the electric control device; and The electronic control device is configured to: In response to the instruction to start the walking mechanism, the laser distance measuring device is used to detect the distance between the obstacle and the frame, which is recorded as the measured distance; In the case where the measured distance is reduced and maintained at the first fixed value, the depth of the rack inserted into the PCCP pipe is determined according to the speed of the traveling mechanism and the duration for which the measured distance is maintained at the first fixed value, and is recorded as the insertion depth; wherein the duration for which the measured distance is maintained at the first fixed value reflects the time from the first moment when the measured distance is reduced to the first fixed value to the second moment when the speed of the traveling mechanism is zero; When the measured distance increases from the first fixed value, the rack height is controlled according to the speed of increase of the measured distance and the insertion depth; The electronic control device is also configured to: In the case where the measured distance changes from the first fixed value, determining whether the change in the measured distance is a linear change; If it does not belong to, the track assembly is controlled to move backward.

2. The quick-detachable crawler-type PCCP pipeline installation trolley according to claim 1 is characterized in that: A first horizontal pin shaft slot is constructed in the middle position of the first frame, and a second horizontal pin shaft slot is constructed on the second frame. When the first frame and the second frame are connected together, a horizontal pin shaft is inserted between the first horizontal pin shaft slot and the second horizontal pin shaft slot to withstand the vertical force transmitted by the first frame and the second frame and the driving force of the belt body.

3. The quick-detachable crawler-type PCCP pipeline installation trolley according to claim 1 is characterized in that: A hook seat extending in the horizontal direction is provided on the upper side of the first frame, and a hook groove is constructed at the root of the hook so that when the hook is assembled on the first frame, the hook seat is embedded in the hook groove. The root of the hook is bounded by the groove and is connected to the upper side of the first frame and the side of the first frame respectively.

4. The quick-detachable crawler-type PCCP pipeline installation trolley according to claim 1 is characterized in that: The connecting ear is arranged at the lower side of the hook, and the connecting ear is arranged downwardly tilted on the first frame. Moreover, the width dimension of the connecting ear root is larger than the radial dimension of the connecting ear front end to increase the connection area between the connecting ear root and the first frame.

5. The quick-detachable crawler-type PCCP pipeline installation trolley according to claim 4 is characterized in that: The second frame is symmetrically arranged in two groups between the track assemblies, the second frame is an L-shaped second frame, and the short sides of the two groups of second frames are connected oppositely, the long sides of the two groups of second frames are respectively connected to the first frame, the upper groove and the lower groove are both arranged in the long side of the second frame, and the short side of the second frame is arranged close to the rear side of the first frame.

6. The quick-detachable crawler-type PCCP pipeline installation trolley according to claim 5 is characterized in that: Two groups of base frames are symmetrically arranged on the rear side of the short side of the second frame body, a connecting frame is provided between the two groups of base frames, the connecting frame and the base frames are arranged perpendicular to each other, a flange connecting seat is provided between the connecting frames of the two groups of base frames, the two sides of the flange connecting seat are respectively connected to the connecting frame by bolts, the size of the flange connecting seat is adjustable, and a connecting reinforcement plate is arranged between the outer side of the base frame and the short side of the second frame body.

7. The quick-detachable crawler-type PCCP pipeline installation trolley according to claim 6 is characterized in that: A connecting base is provided at the root of the base frame connected to the short side of the second frame, and the connecting base is a trapezoidal base. A fixing base is provided on the upper side of the base frame, and bolt holes are opened on the fixing base. The lower side of the base frame is tilted downward and connected to the bottom side of the short side of the second frame to disperse the force of the base frame to the entire short side of the second frame. A base reinforcement plate is provided in the base frame along the vertical direction to increase the supporting strength of the base frame along the vertical direction.

8. The quick-detachable crawler-type PCCP pipeline installation trolley according to claim 1 is characterized in that: An assembly base is provided on the upper end surface of the short side of the second frame body and the upper end surface of the connecting frame. The assembly base is a hollow base, and a base assembly through groove is opened on the upper side of the assembly base.

9. The quick-detachable crawler-type PCCP pipeline installation trolley according to claim 1 is characterized in that: A short side connecting flange seat is provided between the short sides of the second frame body, and two sides of the short side connecting flange seat are respectively connected to the short sides of the second frame body by bolts.

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