pipe hoist

Abstract

This disclosure relates to a pipe-laying machine, comprising: a chassis (1); a boom (2) disposed on a first side of the chassis (1) along the left-right direction (x), the boom (2) comprising two longitudinal beams (21) spaced apart along the front-rear direction (y) of the chassis (1); a first adjusting component (7) disposed on the first side of the chassis (1) along the left-right direction (x) for adjusting the angle of the boom (2) in the vertical plane of the front-rear direction (y); a luffing lifting mechanism (8) disposed on a second side of the chassis (1) along the left-right direction (x) for luffing the boom (2) and lifting the hook (6); and a second adjusting component (9) disposed on the second side of the chassis (1) along the left-right direction (x) for adjusting the angle of the luffing lifting mechanism (8) in the vertical plane of the front-rear direction (y).

Description

Technical Field

[0001] This disclosure relates to the field of engineering machinery technology, and in particular to a pipe-laying machine. Background Technology

[0002] The construction of long-distance pipelines is accelerating significantly, ushering in the fifth peak of long-distance pipeline construction, which will greatly boost the demand for pipeline machinery. Pipeline projects are typically thousands of kilometers long, spanning multiple provinces. The construction environments along the routes are complex and varied, including plains, mountains, deserts, hills, swamps, and snowfields. Conventional equipment is difficult to meet the requirements of these diverse environments. Pipeline construction will face various harsh conditions, with mountainous slopes being particularly challenging. On slopes, the crane boom is subject to significant lateral loads, making it prone to damage, while the main unit experiences large torques, increasing the risk of instability. This presents a tremendous challenge, but also an opportunity to lead the industry's development. Breaking through key core technologies and solving the technical challenges of pipe-laying in mountainous terrain is imperative. Summary of the Invention

[0003] This disclosure provides a pipe-laying machine that can improve the safety of construction on mountain slopes.

[0004] This disclosure provides a pipe-laying machine, comprising:

[0005] Chassis;

[0006] The boom is located on the first side of the chassis in the left-right direction. The boom includes two longitudinal beams, which are spaced apart in the front-rear direction of the chassis.

[0007] The first adjustment component is located on the first side of the chassis in the left-right direction and is used to adjust the angle of the boom in the vertical plane in the front-back direction.

[0008] The luffing hoisting mechanism, located on the second side of the chassis in the left-right direction, is used to luff the boom and lift the hook; and

[0009] The second adjustment component is used to adjust the angle of the luffing hoisting mechanism in the vertical plane in the front-to-back direction.

[0010] In some embodiments, when the pipe-laying machine is on a slope, the first adjustment component is configured to adjust the boom to a vertical position, and the second adjustment component is configured to adjust the luffing mechanism to a position compatible with the boom.

[0011] In some embodiments, the first adjustment component and the second adjustment component are adjusted synchronously.

[0012] In some embodiments, the boom rotates about a first hinge axis in a vertical plane in the front-rear direction, and the luffing hoisting mechanism rotates about a second hinge axis in a vertical plane in the front-rear direction. Both the first and second hinge axes extend in the left-right direction and their center lines coincide.

[0013] In some embodiments, with the direction perpendicular to the chassis as a reference, the adjustment range of the first adjustment component and the second adjustment component is -30° to +30°.

[0014] In some embodiments, the first regulating component includes:

[0015] The mounting bracket includes a first mounting plate and a tripod, the first mounting plate being fixed to the chassis and the tripod being fixed above the first mounting plate;

[0016] A movable frame, the middle region of which is rotatably mounted to the top of a tripod via a first hinge axis extending in the left-right direction; and

[0017] Two first linear drive components are located on both sides of the tripod along the front-rear direction, and the two ends of each first linear drive component are hinged to the fixed frame and the movable frame, respectively.

[0018] The bottoms of the two longitudinal beams are respectively hinged to the two ends of the movable frame in the front-back direction, and the hinge shafts are set in the front-back direction.

[0019] In some embodiments, the chassis includes: a frame and two track frames, the two track frames being respectively connected to both sides of the frame in the left-right direction, and the track frames being surrounded by tracks;

[0020] The first mounting plate is installed on one of the track frames and is located near the outer side in the left-right direction, while the tripod and the two first linear drive components are located on the outer side of the track.

[0021] In some embodiments, the outer side of the track frame near the bottom is provided with two extension plates, which are spaced apart in the front-rear direction, and a first mounting plate is fixed to the two extension plates.

[0022] In some embodiments, the chassis includes: a frame and two track frames, the two track frames being respectively connected to both sides of the frame in the left-right direction, and the track frames being surrounded by tracks;

[0023] The first adjustment component also includes a connecting beam and a second mounting plate. The second mounting plate is mounted on the side of the frame, and the connecting beam is connected between the triangular frame and the second mounting plate, with the connecting beam located above the track.

[0024] In some embodiments, the movable frame includes a mounting beam and a triangular plate. The mounting beam is connected to the boom and the first linear drive component, and the middle region of the mounting beam is hinged to the triangular plate. The connecting side of the triangular plate is mounted on the inner side of the mounting beam in the left-right direction. The apex of the triangular plate opposite to the connecting side is provided with a shaft, which extends in the left-right direction and is rotatably mounted on a second mounting plate.

[0025] In some embodiments, the triangular plate is provided with a limiting device to limit the maximum angle of boom tilt.

[0026] In some embodiments, the luffing lifting mechanism includes:

[0027] The bracket is located on the second side of the chassis in the left-right direction and includes two spaced-apart side plates, two ear plates and a connecting part. The connecting part is connected to the bottom of the two side plates and the two ear plates are spaced-apart at the bottom of the connecting part in the left-right direction for hinge connection with the chassis.

[0028] The luffing mechanism and the hoisting mechanism are arranged at intervals along the height direction. The axes of the luffing mechanism and the hoisting mechanism are parallel and both are located in a vertical plane perpendicular to the left and right directions. The luffing mechanism is used to drive the boom to luff via the luffing wire rope, and / or the hoisting mechanism is used to drive the hook to perform hoisting operations via the hoisting wire rope.

[0029] In some embodiments, the second regulating component includes:

[0030] The mounting platform is located on the chassis, and the bottom of the luffing hoisting mechanism is rotatably mounted on the mounting platform via a second hinge shaft, which is positioned in the left-right direction; and

[0031] Two second linear drive components are located on both sides of the second hinge shaft in the front-rear direction, and the two ends of the second linear drive components are connected to the luffing hoisting mechanism and the mounting platform, respectively.

[0032] In some embodiments, the chassis includes: a frame and two track frames, the two track frames being respectively connected to both sides of the frame in a left-right direction; wherein, the mounting platform includes:

[0033] A horizontal support platform, installed on the side of the vehicle frame along the left-right direction; and

[0034] Two longitudinal support components are respectively connected to the two ends of the horizontal support platform in the front-to-back direction, and the longitudinal support components are installed on the track frame from the outside;

[0035] The bottom of the luffing hoisting mechanism is rotatably mounted above the horizontal support platform.

[0036] In some embodiments, the pipe-laying machine also includes a counterweight mounted on two longitudinal support members, with the counterweight located on the outer side of the chassis in the left-right direction.

[0037] The pipe-laying machine of this disclosure enables the boom and luffing lifting mechanism to be leveled according to the slope. The first and second adjustment components are structurally independent, resulting in a simple structure, low control difficulty, ease of operation, high practicality, and economy. It solves the technical challenges of pipe-laying in complex mountainous environments. After leveling, when traveling on a slope or performing lifting operations, it prevents damage to the boom from lateral loads and prevents the entire machine from being subjected to large torques that could cause instability, ensuring the safety, reliability, and stability of slope lifting. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 The diagram shows some embodiments of the pipe-laying machine disclosed herein from a first-view perspective.

[0040] Figure 2 This is a second-view structural schematic diagram of some embodiments of the pipe-laying machine disclosed herein.

[0041] Figure 3 This is a structural diagram of the chassis from a first-person perspective.

[0042] Figure 4 This is a structural diagram of the chassis from a second-person perspective.

[0043] Figure 5 A schematic diagram of the structure for installing limiting components on the movable frame.

[0044] Figure 6 This is a schematic diagram of the bottom structure of the movable frame.

[0045] Figure 7 This is a structural schematic diagram of some embodiments of the luffing hoisting mechanism and the second adjusting component.

[0046] Figure 8 This is a schematic diagram of the luffing hoisting mechanism in an upright position.

[0047] Figure 9 This is a schematic diagram of the luffing hoisting mechanism in an inverted state.

[0048] Figure 10 This is a schematic diagram of the mounting platform for the second adjustment component.

[0049] Figure 11 This is a schematic diagram of the pipe-laying machine in a leveling state on a slope.

[0050] Figure 12 This is a schematic diagram showing the status of the first adjusting component and the boom when the pipe laying machine is in the leveling state.

[0051] Figure 13 This is a schematic diagram showing the status of the second adjusting component and the luffing hoisting mechanism when the pipe-laying machine is in the leveling state.

[0052] Explanation of reference numerals in the attached figures

[0053] 1. Chassis; 11. Frame; 12. Track frame; 121. Extension plate; 13. Track; 14. Cab; 15. Equipment room;

[0054] 2. Boom; 21. Longitudinal beam; 22. Crossbeam;

[0055] 3. Luffing wire rope; 4. Luffing pulley block; 5. Hoisting wire rope; 6. Hook;

[0056] 7. First adjusting component; 70. First linear drive component; 71. First mounting plate; 72. Triangular frame; 73. First hinge seat; 74. Movable frame; 741. Mounting beam; 7411. First hole; 7412. U-shaped hinge seat; 7413. Second hinge seat; 742. Triangular plate; 743. Third mounting plate; 75. Connecting beam; 75'. Second mounting plate; 751. Second hole; 76. Limiting frame; 77. Guide wheel; 78. Shaft; 79. Nut; A. First hinge shaft;

[0057] 8. Luffing hoisting mechanism; 81. Side plate; 82. Connecting part; 83. Ear plate; 84. Fourth articulated seat; 85. Luffing mechanism; 86. Hoisting mechanism;

[0058] 9. Second adjustment assembly; 91. Horizontal support platform; 911. Side wall; 912. Third hinge seat; 912A. First part; 912B. Second part; 913. Fifth hinge seat; 92. Second linear drive component; 93. Longitudinal support component; 94. Fourth mounting plate; B. Second hinge shaft; 95. Reinforcing beam;

[0059] 10. Counterweight;

[0060] x: left and right direction; y: front and back direction; z: height direction. Detailed Implementation

[0061] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this disclosure or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0062] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0063] In the description of this disclosure, it should be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of the present invention.

[0064] In the description of this disclosure, it should be understood that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this disclosure.

[0065] like Figure 1 and Figure 2 As shown, this disclosure provides a pipe-laying machine, which in some embodiments includes: a chassis 1; a boom 2, disposed on a first side of the chassis 1 along the left-right direction x, the boom 2 including two longitudinal beams 21, the two longitudinal beams 21 being spaced apart along the front-rear direction y of the chassis 1; a first adjustment component 7, disposed on the first side of the chassis 1 along the left-right direction x, for adjusting the angle of the boom 2 in the vertical plane containing the front-rear direction y; a luffing lifting mechanism 8, for causing the boom 2 to luff and causing the hook 6 to perform lifting operations, the lifting operations including the hook 6 rising and falling; and a second adjustment component 9, disposed on a second side of the chassis 1 along the left-right direction x, for adjusting the angle of the luffing lifting mechanism 8 in the vertical plane containing the front-rear direction y.

[0066] Among them, such as Figure 3As shown, the chassis 1 includes a frame 11 and two track frames 12. The two track frames 12 are respectively connected to both sides of the frame 11 in the left-right direction (x), and the track frames 12 are surrounded by tracks 13. A driver's cab 14 and an equipment room 15 can be arranged on the top of the frame 11 in the front-rear direction. When driving, the equipment room 15 is located in the front area of ​​the frame 11, and the driver's cab 14 is located in the rear area of ​​the frame 11.

[0067] Boom 2 is located on the first side of chassis 1 along the left-right direction x, for example, Figure 1 The boom 2 is located on the left side and includes two longitudinal beams 21. The two longitudinal beams 21 are spaced apart along the front-rear direction y of the chassis 1 and can form an A-shape from top to bottom. The two longitudinal beams 21 are connected by a crossbeam 22. The first adjustment component 7 allows the boom 2 to rotate in the vertical plane in the front-rear direction y for leveling. Moreover, the boom 2 can rotate in its central plane for luffing. When the pipe laying machine is on a hillside, if the boom 2 is brought into a vertical position through leveling, the boom 2 will rotate in the vertical plane in the left-right direction x for luffing. If the boom 2 still has a certain angle with the vertical plane after leveling, the rotation plane of the boom also has a certain angle with the vertical plane, but this rotation plane is always perpendicular to the chassis 1.

[0068] The luffing lifting mechanism 8 is located on the second side of the chassis 1 along the left-right direction (x), and is used to luff the boom 2 and to lift the hook 6. The lifting operation includes lifting or lowering heavy objects through the hook 6. Luffing means that the boom 2 rotates in its central plane. The luffing lifting mechanism 8 can be aligned with the boom 2 along the front-back direction (y).

[0069] Currently, the lack of leveling technology in the boom and luffing mechanism of pipe-laying cranes prevents them from solving the challenges of lifting operations on steep mountain slopes. This embodiment of the application is applicable to mountainous operations, allowing the boom 2 and luffing mechanism 8 to be leveled according to the slope. Furthermore, the first adjustment component 7 and the second adjustment component 9 are structurally independent, simple in structure, easy to control, convenient to operate, and highly practical and economical, solving the technical challenges of pipe-laying in complex mountainous environments. After leveling, when traveling on a slope or performing lifting operations, it prevents damage to the boom 2 from lateral loads and prevents the entire machine from being subjected to large torques that could cause instability, ensuring the safety, reliability, and stability of slope lifting.

[0070] In some embodiments, such as Figure 11 As shown, when the pipe-laying machine is on a slope, the first adjustment component 7 is configured to adjust the boom 2 to a vertical state, and the second adjustment component 9 is configured to adjust the luffing hoisting mechanism 8 to a state that is compatible with the boom 2.

[0071] When lifting on a slope, if the boom 2 is tilted relative to the vertical plane, the load can easily cause the boom 2 to be subjected to lateral load. By adjusting the boom 2 to a vertical state through the first adjustment component 7, the boom 2 can be prevented from being subjected to lateral load, so as to avoid deformation or damage to the boom 2. At this time, the angle between the center plane of the boom 2 and the chassis 1 is no longer 90°. When lifting uphill, the angle between the boom 2 and the front part of the chassis 1 is an acute angle. When lifting downhill, the angle between the boom 2 and the front part of the chassis 1 is an obtuse angle.

[0072] Accordingly, in order to ensure the smooth progress of the lifting operation, after the boom 2 adjusts its angle in the vertical plane in the front and rear directions, the luffing lifting mechanism 8 also rotates to the same angle, so as to apply luffing and lifting forces in the center plane of the boom 2 through the wire rope, to prevent the wire rope from twisting and to prevent the boom 2 from being subjected to lateral load.

[0073] In the leveled state of this embodiment, when the mountain pipe hoist is traveling on a slope or performing lifting operations, it can prevent the boom 2 from being damaged by lateral loads to the greatest extent and prevent the whole machine from being subjected to large torques that cause instability, thus ensuring the safety, reliability and stability of slope lifting.

[0074] In some embodiments, the first adjustment component 7 and the second adjustment component 9 are adjusted synchronously.

[0075] This embodiment enables synchronous adjustment of lifting-related mechanisms, preventing the wire rope connecting the luffing lifting mechanism 8 and the boom 2 from twisting, thus improving the service life of the wire rope. Moreover, it does not affect the lifting operation during leveling.

[0076] In some embodiments, such as Figure 12 As shown, boom 2 rotates about the first hinge axis A in the vertical plane containing the front-to-back direction y, as... Figure 13 As shown, the luffing hoisting mechanism 8 rotates around the second hinge axis B in the vertical plane containing the front-to-back direction y. The first hinge axis A and the second hinge axis B both extend in the left-to-right direction x, and their center lines coincide.

[0077] This embodiment ensures that the relative positions of the boom 2 and the luffing mechanism 8 remain unchanged when leveling at the same angle, thus guaranteeing the safe execution of lifting operations.

[0078] In some embodiments, with the direction perpendicular to the chassis 1 as a reference, the adjustment range of the first adjustment component 7 and the second adjustment component 9 is -30° to +30°.

[0079] This embodiment adjusts the boom 2 and the luffing lifting mechanism 8 within a range of ±30° in the reference direction, which can limit the leveling angle within a predetermined range and avoid large changes in the center of gravity distribution of the pipe lifting machine caused by excessive leveling angle, thereby improving the safety of crane operation.

[0080] In some embodiments, such as Figure 1 and Figure 3 The first adjustment assembly 7 includes: a fixed frame, comprising a first mounting plate 71 and a tripod 72, wherein the first mounting plate 71 is fixed to the chassis 1 and the tripod 72 is fixed above the first mounting plate 71; a movable frame 74, the middle region of which is rotatably mounted on the top of the tripod 72 via a first hinge axis A, the first hinge axis A extending in the left-right direction x; and two first linear drive components 70, respectively located on both sides of the tripod 72 in the front-back direction y, with each first linear drive component 70 having its two ends hinged to the fixed frame and the movable frame 74, respectively. The bottoms of the two longitudinal beams 21 are respectively hinged to the two ends of the movable frame 74 in the front-back direction y, and the hinge axis is set in the front-back direction y.

[0081] The first mounting plate 71 can be fixed to the chassis 1 at a position close to the outer side in the left-right direction (x). The tripod 72 is located on the outer side of the chassis 1, and the bottom surface of the tripod 72 is in contact with the first mounting plate 71. The first linear drive component 70 can be an electric push rod, a hydraulic cylinder, or a pneumatic cylinder, etc. The first linear drive components 70 on both sides can adjust the leveling angle of the movable frame 74 through telescopic cooperation.

[0082] The first adjustment component 7 in this embodiment has a simple structure, high reliability of operation, and is easy to control. It can reliably and accurately adjust the angle of the boom 2 in the vertical plane in the front-back direction.

[0083] In some embodiments, such as Figure 3 As shown, the chassis 1 includes a frame 11 and two track frames 12. The two track frames 12 are respectively connected to both sides of the frame 11 in the left-right direction x, and the track frames 12 are surrounded by tracks 13. Among them, a first mounting plate 71 is mounted on one of the track frames 12 and is located near the outer side in the left-right direction x, and a triangular bracket 72 and two first linear drive components 70 are all located outside the track 13.

[0084] This embodiment allows the first adjustment component 7 to be installed via the track frame 12 without affecting the movement of the track 13.

[0085] In some embodiments, such as Figure 4 As shown, the outer side of the track frame 12 near the bottom is provided with two extension plates 121. The two extension plates 121 are spaced apart along the front-rear direction y. The first mounting plate 71 is fixed on the two extension plates 121.

[0086] Since the width of the track 13 is greater than the width of the track frame 12, it is difficult to install the first mounting plate 71. By setting the extension plate 121, it is easy to place the first mounting plate 71 on the two extension plates 121, which can also simplify the structure of the first mounting plate 71 and make the tripod 72 located on the outside of the track 13.

[0087] In some embodiments, such as Figure 3 As shown, the chassis 1 includes a frame 11 and two track frames 12. The two track frames 12 are respectively connected to both sides of the frame 11 in the left-right direction x, and the track frames 12 are surrounded by tracks 13. The first adjustment assembly 7 further includes a connecting beam 75 and a second mounting plate 75'. The second mounting plate 75' is mounted on the side of the frame 11, and the connecting beam 75 connects the triangular bracket 72 and the second mounting plate 75', with the connecting beam 75 positioned above the tracks 13.

[0088] The second mounting plate 75' can be a plate-like structure and can be installed on the side of the frame 11 using fasteners. The connecting beam 75 has a preset distance from the track 13, and the connecting beam 75 can be connected to the area near the top of the tripod 72.

[0089] In this embodiment, the bottom area of ​​the tripod 72 is fixed to the track frame 12 by the first mounting plate 71, and the top area of ​​the tripod 72 is fixed to the vehicle frame 11 by the connecting beam 75 and the second mounting plate 75'. This can stably and reliably fix the tripod 72, and the structural components inside the first adjustment assembly 7 are not easily deformed during the leveling operation, which can also improve the adjustment accuracy of the leveling angle.

[0090] In some embodiments, such as Figure 5 As shown, the movable frame 74 includes a mounting beam 741 and a triangular plate 742. The mounting beam 741 is connected to the boom 2 and the first linear drive component 70, and the middle area of ​​the mounting beam 741 is hinged to the triangular plate 72. The connecting side of the triangular plate 742 is mounted on the inner side of the mounting beam 741 in the left-right direction x. The apex of the triangular plate 742 opposite to the connecting side is provided with a shaft 78, which extends in the left-right direction x and is rotatably mounted on the second mounting plate 75'.

[0091] The mounting beam 741 extends along the front-rear direction y. The middle section of the mounting beam 741 can be inverted U-shaped, and a first hole 7411 can be provided on its side wall. The top of the tripod 72 can be embedded in the inverted U-shaped structure and hinged to the mounting beam 741 through the first hole 7411. U-shaped hinge seats 7412 are provided at both ends of the mounting beam 741. The opening of the U-shaped hinge seat 7412 is located on the outside of the mounting beam 741 along the left-right direction x. The bottom ends of the two longitudinal beams 21 are respectively installed on the two U-shaped hinge seats 7412, and the hinge axis extends along the front-rear direction y to realize the luffing of the boom 2.

[0092] like Figure 3 As shown, the first mounting plate 71 has first hinge seats 73 on both sides of the tripod 72. Figure 6 As shown, the bottom of the mounting beam 741 is provided with second hinge seats 7413 at both ends along the front-rear direction y. The two ends of the first linear drive component 70 are respectively hinged to the first hinge seat 73 and the second hinge seat 7413, and the hinge axis extends along the left-right direction x.

[0093] like Figure 6 As shown, a third mounting plate 743 is provided at the apex of the triangular plate 742 opposite to the connecting side. The shaft 78 is provided at the apex of the triangular plate 742 through the third mounting plate 743 and passes through the second hole 751 on the second mounting plate 75'. A nut 79 is provided on the side of the second mounting plate 75' away from the connecting beam 75 and is screwed onto the end of the shaft 78 to fix the movable frame 74 to the frame 11.

[0094] The movable frame 74 of this embodiment can be simultaneously hinged to the tripod 72, the longitudinal beam 21 and the first linear drive component 70, and can also be mounted on the frame 11 to improve installation stability, thereby improving the reliability and accuracy of leveling.

[0095] In some embodiments, such as Figure 1 and Figure 5 As shown, the triangle plate 742 is equipped with a limiting device to limit the maximum angle of the boom 2 tilting backward.

[0096] The limiting device includes a limiting frame 76 and a guide wheel 77. The limiting frame 76 includes two side plates spaced apart along the front-rear direction y. The guide wheel 77 is located between the two side plates and in the top area of ​​the side plates. When the boom 2 tilts back to contact the guide wheel 77, it can limit the boom 2 from tilting back further. The rotation of the guide wheel 77 can reduce the rigid impact with the boom 2.

[0097] This embodiment, by setting a limiting device, can limit the maximum backward tilt angle of the boom 2, thereby improving the safety of the boom 2 during operation.

[0098] In some embodiments, such as Figures 7 to 9As shown, the luffing and hoisting mechanism 8 includes: a bracket, located on the second side of the chassis 1 along the left-right direction x, and including two spaced-apart side plates 81, two ear plates 83, and a connecting part 82. The connecting part 82 is connected to the bottom of the two side plates 81, and the two ear plates 83 are spaced-apart at the bottom of the connecting part 82 along the left-right direction x, for hinged connection with the chassis 1; a luffing mechanism 85 and a hoisting mechanism 86, spaced-apart along the height direction z. The axes of the luffing mechanism 85 and the hoisting mechanism 86 are parallel and both are located in a vertical plane perpendicular to the left-right direction x. The luffing mechanism 85 is used to drive the boom 2 to luff via the luffing wire rope 3, and the hoisting mechanism 86 is used to drive the hook 6 to perform hoisting operations via the hoisting wire rope 5.

[0099] Both the luffing mechanism 85 and the hoisting mechanism 86 are cylindrical, integrating a motor and a winch. The luffing mechanism 85 and hoisting mechanism 86 are mounted on two side plates 81, with the luffing mechanism 85 positioned above the hoisting mechanism 86. The axes of both the luffing mechanism 85 and the hoisting mechanism 86 lie in a vertical plane perpendicular to the left-right direction (x). When the pipe-laying machine is on a level surface, the boom 2 is in the vertical plane containing the horizontal direction (x), and the axes of the luffing mechanism 85 and the hoisting mechanism 86 are horizontally positioned. When on a hillside and after leveling, the axes of the luffing mechanism 85 and the hoisting mechanism 86 are inclined. In the leveled state, the center plane between the two side plates 81 can coincide with the center plane of the boom 2.

[0100] Both the luffing wire rope 3 and the hoisting wire rope 5 can be installed in one or more sections according to the working conditions. One end of the luffing wire rope 3 can be connected to the top of the boom 2 via the luffing pulley block 4, and the other end is wound onto the drum of the luffing mechanism 85. One end of the hoisting wire rope 5 can be connected to the hook 6, and the other end is wound onto the drum of the hoisting mechanism 86.

[0101] This embodiment integrates the luffing mechanism 85 and the hoisting mechanism 86 onto the same support, resulting in a more compact structural layout. Furthermore, the luffing mechanism 85 and the hoisting mechanism 86 operate independently without interfering with each other. Additionally, the boom 2 is driven to luff via the luffing wire rope 3, and the hook 6 is driven to lift via the hoisting wire rope 5. Due to the flexibility of the wire ropes, luffing and lifting operations can be performed smoothly even when there are positional errors between components. Moreover, the number of wire ropes can be flexibly configured to meet load-bearing requirements depending on different working conditions.

[0102] In some embodiments, such as Figure 7 As shown, the second adjustment component 9 includes: a mounting platform, which is mounted on the chassis 1, and the bottom of the luffing lifting mechanism 8 is rotatably mounted on the mounting platform via a second hinge shaft B, wherein the second hinge shaft B is arranged along the left-right direction x; and two second linear drive components 92, which are located on both sides of the second hinge shaft B along the front-back direction y, wherein the two ends of the second linear drive components 92 are respectively connected to the luffing lifting mechanism 8 and the mounting platform.

[0103] Specifically, the mounting platform is mounted on the frame 11. The second linear drive component 92 can be an electric push rod, a hydraulic cylinder, or a pneumatic cylinder, etc., and its two ends are hinged to the connecting part 82 and the mounting platform, respectively. The two second linear drive components 92 can adjust the angle of the luffing lifting mechanism 8 through telescopic cooperation.

[0104] The second adjustment component 9 in this embodiment has a simple structure, high operational reliability, and is easy to control. It can reliably and accurately adjust the angle of the luffing hoisting mechanism 8 in the vertical plane containing the longitudinal direction y. Moreover, the mounting platform can simultaneously install the luffing hoisting mechanism 8 and the second adjustment component 9.

[0105] In some embodiments, such as Figure 10 As shown, the chassis 1 includes a frame 11 and two track frames 12, which are respectively connected to both sides of the frame 11 in the left-right direction (x). The mounting platform includes a horizontal support platform 91, mounted on the side of the frame 11 in the left-right direction (x); and two longitudinal support components 93, respectively connected to both ends of the horizontal support platform 91 in the front-rear direction (y), with the longitudinal support components 93 mounted to the track frames 12 from the outside. The bottom of the luffing lifting mechanism 8 is rotatably mounted above the horizontal support platform 91.

[0106] The horizontal support platform 91 may be rectangular in shape, and a fourth mounting plate 94 may be provided on the side of the horizontal support platform 91 near the frame 11, and the fourth mounting plate 94 may be used to install the platform on the side of the frame 11.

[0107] Specifically, the horizontal support platform 91 includes a base plate and multiple side walls 911. The multiple side walls 911 are disposed around the base plate. A third hinge seat 912 is provided on the base plate. The third hinge seat 912 includes a first part 912A and two second parts 912B. The two second parts 912B are respectively disposed on both sides of the first part 912A along the first direction x, and the second parts 912B and the first part 912A are spaced apart. The ear plate 83 is disposed between the second parts 912B and the first part 912A to realize the hinge between the luffing lifting mechanism 8 and the horizontal support platform 91.

[0108] Two fourth hinge seats 84 are spaced apart at the bottom of the connecting part 82 of the luffing hoisting mechanism 8 along the front-rear direction y. A fifth hinge seat 913 is provided on each side of the third hinge seat 912 along the front-rear direction y. The two ends of the second linear drive component 92 are hinged to the fourth hinge seats 84 and the fifth hinge seats 913 respectively. The two longitudinal support components 93 can be connected by a reinforcing beam 95.

[0109] This embodiment can provide three-point support for the horizontal support platform 91, including the connection with the frame 11 and the support of the two longitudinal support components 93, which can provide stable support for the luffing lifting mechanism 8 and the second adjustment component 9, so as to ensure the reliability of lifting operations and leveling, and improve the accuracy of leveling.

[0110] In some embodiments, the pipe-laying machine further includes a counterweight 10, which is mounted on two longitudinal support members 93 and is located on the outer side of the chassis 1 in the left-right direction x.

[0111] This embodiment ensures balanced force on both sides during lifting operations by setting a counterweight 10 on the side opposite to the boom 2, thus preventing the pipe-laying machine from tipping over.

[0112] The working principle of the embodiments of this application is as follows: During lifting operations on steep mountain slopes, the boom 2 is first leveled using the first adjusting component 7, and the luffing lifting mechanism 8 is leveled using the second adjusting component 9. This allows for leveling within a range of ±30° according to the slope angle. Leveling ensures that the first adjusting component 7 and the second adjusting component 9 are leveled synchronously, thereby guaranteeing that the center plane of the boom 2 always coincides with the center plane of the two side plates 81. Lifting operations are then carried out after leveling. At this time, the boom is not subjected to lateral loads, and the entire machine is not subjected to torque, ensuring the safety, reliability, and stability of slope lifting.

[0113] The above are merely exemplary embodiments of this disclosure and are not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A pipe-laying machine, characterized in that, include: Chassis (1); The boom (2) is located on the first side of the chassis (1) along the left-right direction (x). The boom (2) includes two longitudinal beams (21), which are spaced apart along the front-back direction (y) of the chassis (1). The first adjustment component (7) is located on the first side of the chassis (1) along the left-right direction (x) and is used to adjust the angle of the boom (2) in the vertical plane in the front-back direction (y). The luffing lifting mechanism (8) is used to luff the boom (2) and to lift the hook (6); and The second adjustment component (9) is located on the second side of the chassis (1) along the left-right direction (x) and is used to adjust the angle of the luffing hoisting mechanism (8) in the vertical plane in the front-back direction (y). The luffing and hoisting mechanism (8) includes: a bracket, located on the second side of the chassis (1) along the left-right direction (x), including two spaced side plates (81), two ear plates (83), and a connecting part (82), the connecting part (82) being connected to the bottom of the two side plates (81), the two ear plates (83) being spaced along the left-right direction (x) at the bottom of the connecting part (82) for hinged connection with the chassis (1); a luffing mechanism (85) and a hoisting mechanism (86), spaced along the height direction (z), the axes of the luffing mechanism (85) and the hoisting mechanism (86) being parallel and both located in a vertical plane perpendicular to the left-right direction (x), the luffing mechanism (85) being used to drive the boom (2) to luff via the luffing wire rope (3), and / or the hoisting mechanism (86) being used to drive the hook (6) to perform hoisting operations via the hoisting wire rope (5); The second adjustment component (9) includes: a mounting platform disposed on the chassis (1), the bottom of the luffing hoisting mechanism (8) being rotatably mounted on the mounting platform via a second hinge shaft (B), and the second hinge shaft (B) being arranged along the left-right direction (x); and two second linear drive components (92), located on both sides of the second hinge shaft (B) along the front-back direction (y), and the two ends of the second linear drive components (92) being connected to the luffing hoisting mechanism (8) and the mounting platform, respectively; The chassis (1) includes: a frame (11) and two track frames (12), the two track frames (12) being connected to the two sides of the frame (11) along the left-right direction (x); wherein, the mounting platform includes: a horizontal support platform (91) mounted on the side of the frame (11) along the left-right direction (x); and two longitudinal support components (93) being connected to the two ends of the horizontal support platform (91) along the front-rear direction (y), the longitudinal support components (93) being mounted on the track frames (12) from the outside; wherein, the bottom of the luffing lifting mechanism (8) is rotatably mounted above the horizontal support platform (91).

2. The pipe-laying machine according to claim 1, characterized in that, When the pipe-laying machine is on a slope, the first adjustment component (7) is configured to adjust the boom (2) to a vertical state, and the second adjustment component (9) is configured to adjust the luffing hoisting mechanism (8) to a state that is compatible with the boom (2).

3. The pipe-laying machine according to claim 1, characterized in that, The first adjustment component (7) and the second adjustment component (9) are adjusted synchronously.

4. The pipe-laying machine according to claim 1, characterized in that, The boom (2) rotates around the first hinge axis (A) in the vertical plane in the front-to-back direction (y), and the luffing lifting mechanism (8) rotates around the second hinge axis (B) in the vertical plane in the front-to-back direction (y). The first hinge axis (A) and the second hinge axis (B) both extend in the left-to-right direction (x) and their center lines coincide.

5. The pipe-laying machine according to claim 1, characterized in that, With the direction perpendicular to the chassis (1) as a reference, the adjustment range of the first adjustment component (7) and the second adjustment component (9) is -30° to +30°.

6. The pipe-laying machine according to any one of claims 1 to 5, characterized in that, The first adjustment component (7) includes: The mounting bracket includes a first mounting plate (71) and a tripod (72), wherein the first mounting plate (71) is fixed to the chassis (1) and the tripod (72) is fixed above the first mounting plate (71); A movable frame (74), whose middle region along the front-rear direction (y) is rotatably mounted on the top of the tripod (72) via a first hinge axis (A) extending along the left-right direction (x); and Two first linear drive components (70) are located on both sides of the tripod (72) along the front-rear direction (y), and the two ends of each first linear drive component (70) are respectively hinged to the fixed frame and the movable frame (74); The bottoms of the two longitudinal beams (21) are respectively hinged to the two ends of the movable frame (74) along the front-rear direction (y), and the hinge axis is set along the front-rear direction (y).

7. The pipe-laying machine according to claim 6, characterized in that, The chassis (1) includes: a frame (11) and two track frames (12), the two track frames (12) are respectively connected to the two sides of the frame (11) in the left-right direction (x), and the track frames (12) are surrounded by tracks (13); The first mounting plate (71) is mounted on one of the track frames (12) and is located near the outside in the left-right direction (x), and the tripod (72) and the two first linear drive components (70) are located outside the track (13).

8. The pipe-laying machine according to claim 7, characterized in that, Two extension plates (121) are provided on the outer side of the track frame (12) near the bottom. The two extension plates (121) are spaced apart in the front-rear direction (y). The first mounting plate (71) is fixed on the two extension plates (121).

9. The pipe-laying machine according to claim 6, characterized in that, The chassis (1) includes: a frame (11) and two track frames (12), the two track frames (12) are respectively connected to the two sides of the frame (11) in the left-right direction (x), and the track frames (12) are surrounded by tracks (13); The first adjustment component (7) further includes a connecting beam (75) and a second mounting plate (75'), the second mounting plate (75') being mounted on the side of the frame (11), the connecting beam (75) being connected between the triangular frame (72) and the second mounting plate (75'), and the connecting beam (75) being located above the track (13).

10. The pipe-laying machine according to claim 9, characterized in that, The movable frame (74) includes a mounting beam (741) and a triangular plate (742). The mounting beam (741) is connected to the boom (2) and the first linear drive component (70). The middle area of ​​the mounting beam (741) is hinged to the triangular plate (72). The connecting side of the triangular plate (742) is mounted on the inner side of the mounting beam (741) in the left-right direction (x). The apex of the triangular plate (742) opposite to the connecting side is provided with a shaft (78). The shaft (78) extends in the left-right direction (x) and is rotatably mounted on the second mounting plate (75').

11. The pipe-laying machine according to claim 10, characterized in that, The triangular plate (742) is provided with a limiting device to limit the maximum angle of the boom (2) tilting backward.

12. The pipe-laying machine according to claim 1, characterized in that, It also includes a counterweight (10) mounted on the two longitudinal support members (93), and the counterweight (10) is located on the outside of the chassis (1) in the left-right direction (x).

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