Quick-release crawler-type PCCP (prestressed concrete cylinder pipe) mounting trolley

Abstract

The invention relates to the technical field of crawler chassis, in particular to a quick-release crawler-type PCCP (prestressed concrete cylinder pipe) pipeline mounting trolley, which is characterized in that when a first frame body is assembled on a second frame body, a crawler assembly is lifted upwards by external equipment, the crawler assembly is moved until a downward opening of a clamping hook hooks a rotating shaft in an upper clamping groove, and then the first frame body is released; under the action of self weight of the first frame body, the clamping hook rotates around the rotating shaft so as to enable the connecting lug to be inserted into the lower clamping groove, the clamping hook and the rotating shaft only bear horizontal force transmitted by the first frame body at the moment, the connecting pin shaft is inserted into the first pin hole and the second pin hole, and then the pin shaft in the first pin hole and the second pin hole can rotate around the rotating shaft. The vertical force transmitted by the first frame body and the second frame body and the horizontal force during steering are borne, so that the first frame body and the second frame body are connected together, the clamping hooks are matched with the rotating shafts, and the lower clamping grooves are matched with the connecting lugs, so that the convenience during assembling of the first frame body and the second frame body can be improved, and the effect of quick disassembly and assembly is achieved.

Description

Technical Field

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

[0002] The installation of crawler assemblies of crawler-type engineering machinery is mostly done by bolt connection, and calibration is difficult during the installation process. The installation of crawler assemblies is relatively time-consuming. For some working environments where the crawler assemblies need to be completely disassembled, transported to the construction site in a dispersed manner, and then assembled, reinstallation requires a large amount of work, which is not conducive to the timely development of construction. A few crawler-type engineering machinery with pin-connected crawler assemblies need to reference the position of the pin and the shaft hole when installing the pin. The crawler assembly itself has a large mass and is difficult to calibrate. In addition, when subjected to a large load, the frame rigidity of the ordinary pin connection is weak. A new type of crawler assembly installation method is needed, which can quickly disassemble and assemble the crawler assembly and improve the disassembly and assembly efficiency of the crawler-type engineering machinery. Therefore, a quick-detachable crawler PCCP pipeline installation trolley is needed. Summary of the invention

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

[0004] Specifically, the present invention provides a quick-detachable crawler-type PCCP pipeline installation trolley, comprising: 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 track assembly, and the downward projection of the frame falls into the inner cavity between the two sets of crawler track assemblies.

[0005] The first frame and the belt body cooperate to ensure the stability of the trolley during operation. The lifting ears on the top of the first frame can facilitate the lifting of the first frame during assembly. When the first frame is assembled to the second frame, the track assembly is lifted upward by external equipment, and the track assembly is moved to the downward opening of the hook to hook the rotating shaft in the upper slot, and then the first frame is loosened, so that the first frame rotates around the rotating shaft under the action of its own weight to prompt the connecting ear to be inserted into the lower slot. At this time, the hook and the rotating shaft only bear the horizontal force transmitted by the first frame, and the first pin hole and the second pin hole are aligned; then, the connecting pin is inserted into the first pin hole and the second pin hole. At this time, the pins in the first pin hole and the second pin hole bear the vertical force transmitted by the first frame and the second frame and the horizontal force during turning, so that the first frame and the second frame are connected together. The cooperation of the hook and the rotating shaft, and the cooperation of the lower slot and the connecting ear can improve the convenience of assembling the first frame and the second frame, and achieve the effect of quick disassembly and assembly.

[0006] By constructing a frame on the upper side of the second frame body, 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 track assemblies, which provides great convenience for the PCCP pipe. Optionally, 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.

[0007] By setting the first horizontal pin shaft through groove at the center position of the first frame and connecting the second horizontal pin shaft through groove through a horizontal pin shaft, it can withstand the vertical force transmitted between the first frame and the second frame and the driving force of the track assembly. The horizontal pin shaft connects the first frame and the second frame, which can ensure the synchronization of the first frame and the second frame during movement. Optionally, a hook seat extending in a 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, and the root of the hook is bounded by the groove and connected to the upper side of the first frame and the side of the first frame respectively.

[0008] By utilizing the hook seat extending from the upper side of the first frame and cooperating with the hook groove constructed at the root of the hook, when the hook is assembled on the first frame, the hook seat is embedded in the hook groove, which can achieve the initial positioning effect of the hook, and the hook groove connecting the hook seat part can be welded to improve the connection stability between the hook and the hook seat, and the root of the hook is bounded by the groove and connected to the upper side of the first frame and the side of the first frame respectively, which can disperse the horizontal force transmitted from the second frame to the hook to the upper side of the first frame and the side of the first frame, thereby improving the reliability of the hook. Optionally, the connecting ear is arranged on the lower side of the hook, the connecting ear is arranged downwardly inclined on the first frame, and the width dimension of the connecting ear root is larger than the radial dimension of the front end of the connecting ear to increase the connection area between the connecting ear root and the first frame.

[0009] The connecting ear is tilted downward on the first frame, so that during hoisting, under the action of the gravity of the first frame, the hoisting machine slowly lowers the first frame, and the connecting ear can be inserted into the lower groove more smoothly. In order to withstand the vertical force transmitted by the frame and the horizontal force during steering, the width of the root of the connecting ear is larger than the radial dimension of the front end of the connecting ear, so as to increase the connection area between the root of the connecting ear and the first frame and improve the connection stability between the connecting ear and the first frame. A second pin hole connected to the lower groove is constructed on the second frame, and the second pin hole is arranged in a direction parallel to the length of the first frame, which can improve the use stability of the connecting pin shaft in the second pin hole and the convenience during assembly. Optionally, two groups of the second frame are symmetrically arranged 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 slot and the lower slot are both arranged in the long sides of the second frame, and the short sides of the second frame are arranged close to the rear side of the first frame.

[0010] 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. 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.

[0011] 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. 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.

[0012] By forming a trapezoidal base as the connecting base connecting the root of the base frame to the short side of the second frame, the contact area between the base frame and the short side of the second frame can be increased, thereby improving the force stability of the base frame when in use; by tilting the lower side of the base frame downward and connecting it to the bottom side of the short side of the second frame, the base frame can be completely in contact with the side surface of the second frame in the vertical direction, thereby dispersing the force of the base frame to the entire short side of the second frame in the vertical direction, thereby improving the support stability of the base frame when in use; by arranging a base reinforcement plate in the vertical direction inside the base frame, the support strength of the base frame itself can be increased by utilizing the base reinforcement plate to improve its support stability.

[0013] By arranging a fixing seat on the upper side of the base frame and opening bolt holes on the fixing seat, the fixing seat can improve the connection convenience when the device is installed on the base frame, and provide an installation base for the device installation. Optionally, 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.

[0014] By setting up an assembly base, it is possible to provide a positioning basis for external devices. The assembly base is a hollow base, which can facilitate the installation of external devices. Optionally, a short side connecting flange seat is provided between the short sides of the second frame, and two sides of the short side connecting flange seat are respectively connected to the short sides of the second frame by bolts.

[0015] The short side connecting flange seat is utilized, and the short side connecting flange seat can be replaced with different sizes, so as to meet the width requirements for supporting different types of PCCP pipes, and can also improve the connection convenience of the short side of the second frame. Optionally, the quick-detachable crawler-type PCCP pipeline installation trolley further includes: An electric control device is arranged on the frame, and its projection on the horizontal plane falls within the projection range of the bracket 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 control the start of 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.

[0016] By setting an upward-emitting laser distance measuring device at the front end of the frame, when the frame is needed to support the PCCP pipe, the laser distance measuring device is used to detect the distance between the inner wall of the PCCP pipe and the frame, and the first fixed value data of the measured distance is set. According to the speed of the walking mechanism and the duration of the first fixed value, the depth of the frame inserted into the PCCP pipe is determined. When the measured distance increases from the first fixed value, it means that the PCCP pipe on the lifting mechanism tilts and slides, then it is necessary to control the descent of the PCCP pipe according to the speed of the increase of the measured distance and the insertion depth, so that the PCCP pipe can land smoothly.

[0017] When the frame is extended into the PCCP pipe, observe whether the change in the measured distance is a linear change. If it is not a linear change, it proves that the PCCP pipe is not aligned and there is a problem of distortion and tilt. In this case, it is necessary to control the track assembly to retreat and adjust the lateral, longitudinal and height positions of the PCCP pipe according to the change of the first fixed value in the distorted state, so as to better enable the PCCP pipe to be accurately docked with the pipe end. In the technical solution of the present invention, the hook cooperates with the rotating shaft, and the lower slot cooperates with the connecting ear, so as to improve the convenience of assembling the first frame and the second frame, and achieve the effect of quick disassembly and assembly.

[0018] Furthermore, in the technical solution of the present invention, a horizontal pin connects the first frame and the second frame, which can withstand the vertical force transmitted between the first frame and the second frame and the driving force of the track assembly, and can ensure the synchronization of the first frame and the second frame during movement.

[0019] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings: Figure 1 is a schematic structural diagram of a first frame according to an embodiment of the present invention; Figure 2 is a schematic structural diagram of a base frame according to an embodiment of the present invention; Figure 3 is a schematic structural diagram of a horizontal pin shaft through slot according to an embodiment of the present invention; Figure 4 is a schematic structural diagram of a hook according to an embodiment of the present invention; Figure 5 is a schematic structural diagram of an ear plate pin according to an embodiment of the present invention; Figure 6 is a schematic structural diagram of a connection base according to an embodiment of the present invention.

[0021] Component number description 1. First frame; 2. Belt body; 3. Lifting ear; 4. Hook; 5. Connecting ear; 6. First pin hole; 7. Second frame; 8. Upper slot; 9. Lower slot; 10. Second pin hole; 11. First horizontal pin shaft slot; 12. Second horizontal pin shaft slot; 13. Hook seat; 14. Hook slot; 15. Short side; 16. Base frame; 17. Connecting frame; 18. Flange connecting seat; 19. Connecting reinforcement plate; 20. Connecting base; 21. Fixed seat; 22. Base frame reinforcement plate; 23. Assembly base; 24. Short side connecting flange seat. DETAILED DESCRIPTION

[0022] Refer to the following Figures 1 to 6 To describe an embodiment of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0023] Unless otherwise clearly defined and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0024] 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 another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0025] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0026] like Figure 1 As shown, and refer to Figures 2 to 6 The embodiment of the present invention provides a quick-detachable crawler-type PCCP pipeline installation trolley, including a crawler assembly, including a first frame body 1 extending forward and backward and a belt body 2 wrapped thereon, a lifting ear 3 and a hook 4 are formed on the top of the first frame body 1, the lifting ear 3 and the hook 4 are spaced apart in the front-to-back direction, and the hook 4 opens downward; a connecting ear 5 is formed at the bottom of the first frame body 1, a first pin hole 6 penetrating forward and backward is defined on the connecting ear 5, and the connecting ear 5 and the hook 4 are both located on the left or right side of the first frame body 1; A vehicle frame connected between the two groups of track assemblies spaced apart from each other, and comprising a second frame body 7 connected to the first frame body 1, an upper slot 8 and a lower slot 9 being formed on the second frame body 7; wherein the upper slot 8 is upwardly open, and a rotating shaft extending forward and backward is arranged in the upper slot 8, and the rotating shaft is inserted into the downward opening of the hook 4; wherein the lower slot 9 is open to the first frame body 1 and accommodates the connecting ear 5, and a second pin hole 10 which is aligned with the first pin hole 6 and communicates with the first pin hole 6 is defined on the front and rear sides of the lower slot 9; a connecting pin is inserted in the pin hole, and the connecting pin is connected between the first frame body 1 and the second frame body 7; and The lifting lug 3 of the crawler assembly is configured such that when it is lifted upward by an external device, the rotating shaft of the second frame body 7 is inserted from bottom to top into the downward opening of the hook 4; then, when the first frame body 1 is loosened or the second frame body 7 is lifted upward, the first frame body 1 rotates around the rotating shaft under the action of its own weight, so as to cause the connecting lug 5 to be inserted into the lower slot 9, and the first pin hole 6 and the second pin hole 10 are aligned; then, the connecting pin 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; A frame is also constructed on the upper side of the second frame body 7, and 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.

[0027] The first frame 1 and the belt body 2 cooperate to ensure the stability of the trolley during operation. The lifting ear 3 on the top of the first frame 1 can facilitate the lifting of the first frame 1 during assembly. When the first frame 1 is assembled on the second frame 7, the crawler assembly is lifted upward by external equipment, and the crawler assembly is moved to the downward opening of the hook 4 to hook the rotating shaft in the upper slot 8, and then the first frame 1 is loosened, so that the hook 4 rotates around the rotating shaft under the action of the first frame 1's own weight to prompt the connecting ear 5 to be inserted into the lower slot 9. At this time, the hook 4 and the rotating shaft are only subjected to the load caused by the first The horizontal force transmitted by the frame 1 waits for the first pin hole 6 and the second pin hole 10 to be aligned; then, the connecting pin shaft is inserted into the first pin hole 6 and the second pin hole 10, at which 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 1 and the second frame 7 and the horizontal force during turning, so that the first frame 1 and the second frame 7 are connected together, and the cooperation of the hook 4 with the rotating shaft and the lower groove 9 with the connecting ear 5 can improve the convenience of assembling the first frame 1 and the second frame 7, and achieve the effect of quick disassembly and assembly.

[0028] By constructing a frame 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 track assemblies, which provides great convenience for the PCCP pipe.

[0029] In some embodiments of the present invention, a first horizontal pin slot 11 is constructed in the middle position of the first frame 1, and a second horizontal pin slot 12 is constructed on the second frame 7. When the first frame 1 and the second frame 7 are connected together, a horizontal pin is inserted between the first horizontal pin slot 11 and the second horizontal pin slot 12 to withstand the vertical force transmitted by the first frame 1 and the second frame 7 and the driving force of the belt 2.

[0030] By setting the first horizontal pin shaft slot 11 at the center position of the first frame 1 and connecting the second horizontal pin shaft slot 12 through a horizontal pin shaft, it can withstand the vertical force transmitted between the first frame 1 and the second frame 7 and the driving force of the track assembly. The horizontal pin shaft connects the first frame 1 and the second frame 7, which can ensure the synchronization of the first frame 1 and the second frame 7 during movement.

[0031] In some embodiments of the present invention, a hook seat 13 extending in a horizontal direction is provided on the upper side of the first frame 1, and a hook groove 14 is constructed at the root of the hook 4 so that when the hook 4 is assembled on the first frame 1, the hook seat 13 is embedded in the hook groove 14, and the root of the hook 4 is bounded by the groove and connected to the upper side of the first frame 1 and the side of the first frame 1 respectively.

[0032] By utilizing the hook seat 13 extending from the upper side of the first frame 1 and cooperating with the hook groove 14 constructed at the root of the hook 4, when the hook 4 is assembled on the first frame 1, the hook seat 13 is embedded in the hook groove 14, which can achieve a preliminary positioning effect on the hook 4, and the part where the hook groove 14 is connected to the hook seat 13 can be welded, which has improved the connection stability between the hook 4 and the hook seat 13, and the root of the hook 4 is connected to the upper side of the first frame 1 and the side of the first frame 1 with the groove as the boundary, respectively, which can disperse the horizontal force transmitted from the second frame 7 to the hook 4 to the upper side of the first frame 1 and the side of the first frame 1, thereby improving the reliability of the hook 4.

[0033] In some embodiments of the present invention, the connecting ear 5 is arranged on the lower side of the hook 4, and the connecting ear 5 is arranged to be tilted downward on the first frame 1, and the width of the root of the connecting ear 5 is larger 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 1.

[0034] The connecting ear 5 is tilted downward on the first frame 1, so that during hoisting, under the action of the gravity of the first frame 1, the hoisting machine can slowly lower the first frame 1, and the connecting ear 5 can be more smoothly inserted into the lower slot 9. In order to withstand the vertical force transmitted by the frame and the horizontal force during turning, the root width of the connecting ear 5 is larger than the radial dimension of the front end of the connecting ear 5, so as to increase the connection area between the root of the connecting ear 5 and the first frame 1, and improve the connection stability between the connecting ear 5 and the first frame 1. A second pin hole 10 connected to the lower slot 9 is constructed on the second frame 7. The second pin hole 10 is set in a direction parallel to the length of the first frame 1, which can improve the use stability of the connecting pin shaft in the second pin hole 10 and the convenience during assembly.

[0035] In some embodiments of the present invention, two groups of second frames 7 are symmetrically arranged between the track assemblies, the second frames 7 are L-shaped second frames 7, and the short sides 15 of the two groups of second frames 7 are connected oppositely, the long sides of the two groups of second frames 7 are respectively connected to the first frame 1, the upper card groove 8 and the lower card groove 9 are both arranged in the long sides of the second frame 7, and the short sides 15 of the second frame 7 are arranged close to the rear side of the first frame 1.

[0036] By arranging both the upper card slot 8 and the lower card slot 9 in the long side of the second frame 7, the large size of the long side of the second frame 7 can be utilized to improve the connection stability between the second frame 7 and the first frame 1, and the short side 15 of the second frame 7 is arranged close to the rear side of the first frame 1, which can facilitate the installation of equipment on the rear side of the frame, provide sufficient working space for the long side of the second frame 7, and better provide support space for the PCCP pipeline. The long side of the second frame 7 is connected to the first frame 1 until the front end of the long side of the second frame 7 passes over the half position of the first frame 1. 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 1, so as to avoid the situation where the front of the first frame 1 is warped due to excessive force on the short side 15 of the second frame 7, and the root of the frame is assembled on the short side 15 of the second frame 7.

[0037] In some embodiments of the present invention, two groups of base frames 16 are symmetrically provided on the rear side of the short side 15 of the second frame 7, a connecting frame 17 is provided between the two groups of base frames 16, the connecting frame 17 and the base frames 16 are arranged perpendicular to each other, a flange connecting seat 18 is provided between the connecting frames 17 of the two groups of base frames 16, the two sides of the flange connecting seat 18 are respectively connected to the connecting frame 17 by bolts, the size of the flange connecting seat 18 is adjustable, and a connecting reinforcement plate 19 is arranged between the outer side of the base frame 16 and the short side 15 of the second frame 7.

[0038] By providing a flange connection seat 18 between the connecting frames 17 of the two groups of base frames 16, the connection stability and convenience between the two groups of base frames 16 can be improved. In addition, in actual use, the size of the flange connection seat 18 can be adjusted according to the pipe diameter requirements of the PCCP pipeline to meet the support requirements of the PCCP pipeline. The connecting frame 17 and the base frame 16 are arranged perpendicular to each other, which can improve the connection stability between the connecting frame 17 and the base frame 16, and can provide more sufficient support space for the short side 15 of the second frame 7 to facilitate the installation of equipment to the short side 15 of the second frame 7. It can also provide a more stable support effect for the frame and the short side 15 of the second frame 7. By configuring a connecting reinforcement plate 19 between the outer side of the base frame 16 and the short side 15 of the second frame 7, the reinforcement plate is used to improve the connection stability between the base frame 16 and the short side 15 of the second frame 7.

[0039] In some embodiments of the present invention, a connecting base 20 is provided at the root of the base frame 16 connected to the short side 15 of the second frame body 7, and the connecting base 20 is a trapezoidal base. A fixing seat 21 is provided on the upper side of the base frame 16, and a bolt hole is opened on the fixing seat 21. The lower side of the base frame 16 is tilted downward and connected to the bottom side of the short side 15 of the second frame body 7 to disperse the force of the base frame 16 to the short side 15 of the entire second frame body 7. A base frame 16 reinforcement plate is arranged in the vertical direction inside the base frame 16 to improve the supporting strength of the base frame 16 along the vertical direction.

[0040] By making the connecting base 20 connecting the root of the base frame 16 to the short side 15 of the second frame 7 into a trapezoidal base, the contact area between the base frame 16 and the short side 15 of the second frame 7 can be increased, thereby improving the force stability of the base frame 16 when in use; by tilting the lower side of the base frame 16 downward and connecting it to the bottom side of the short side 15 of the second frame 7, the base frame 16 can be completely in contact with the side surface of the second frame 7 in the vertical direction, thereby dispersing the force of the base frame 16 in the vertical direction to the short side 15 of the entire second frame 7, thereby improving the support stability of the base frame 16 when in use; by arranging a base reinforcement plate 22 in the vertical direction inside the base frame 16, the support strength of the base frame 16 itself is increased by using the base reinforcement plate 22 to improve its support stability.

[0041] By providing a fixing seat 21 on the upper side of the base 16 and opening bolt holes on the fixing seat 21, the fixing seat 21 can improve the connection convenience when installing the device on the base 16, and provide an installation base for the device installation.

[0042] In some embodiments of the present invention, an assembly base 23 is provided on the upper end surface of the short side 15 of the second frame 7 and the upper end surface of the connecting frame 17. The assembly base 23 is a hollow base, and a base assembly groove is opened on the upper side of the assembly base 23.

[0043] The assembly base 23 can be provided to provide a positioning basis for the external device. The assembly base 23 is a hollow base, which can facilitate the installation of the external device.

[0044] In some embodiments of the present invention, a short side connecting flange seat 24 is provided between the short sides 15 of the second frame body 7 , and two sides of the short side connecting flange seat 24 are respectively connected to the short sides 15 of the second frame body 7 by bolts.

[0045] The short side connecting flange seat 24 is utilized, and the short side connecting flange seat 24 can be replaced with different sizes to meet the width requirements for supporting different types of PCCP pipes, and can also improve the connection convenience of the short side portion 15 of the second frame 7.

[0046] In some embodiments of the present invention, the quick-detachable crawler-type PCCP pipeline installation trolley further includes: An electric control device is arranged on the frame, and its projection on the horizontal plane falls within the projection range of the bracket 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 control the start of 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.

[0047] By setting an upward-emitting laser distance measuring device at the front end of the frame, when the frame is needed to support the PCCP pipe, the laser distance measuring device is used to detect the distance between the inner wall of the PCCP pipe and the frame, and the first fixed value data of the measured distance is set. According to the speed of the walking mechanism and the duration of the first fixed value, the depth of the frame inserted into the PCCP pipe is determined. When the measured distance increases from the first fixed value, it means that the PCCP pipe on the lifting mechanism tilts and slides, then it is necessary to control the descent of the PCCP pipe according to the speed of the increase of the measured distance and the insertion depth, so that the PCCP pipe can land smoothly.

[0048] When the frame is extended into the PCCP pipe, observe whether the change in the measured distance is a linear change. If it is not a linear change, it proves that the PCCP pipe is not aligned and there is a problem of distortion and tilt. In this case, it is necessary to control the track assembly to retreat and adjust the lateral, longitudinal and height positions of the PCCP pipe according to the change of the first fixed value in the distorted state, so as to better enable the PCCP pipe to be accurately docked with the pipe end.

[0049] 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 based on 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 recognized as covering 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 track assembly, and the downward projection of the frame falls into the inner cavity between the two sets of crawler track assemblies.

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 1 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.

10. The quick-detachable crawler-type PCCP pipeline installation trolley according to claim 1, characterized in that: The quick-detachable crawler-type PCCP pipeline installation trolley also includes: An electric control device is arranged on the frame, and its projection on the horizontal plane falls within the projection range of the bracket 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 control the start of 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.

Images