pipe hoist

Abstract

The present disclosure relates to a pipe hoisting machine, comprising: a chassis (1); an arm support (2) arranged at a first side of the chassis (1) along a left-right direction (x), the arm support (2) comprising two longitudinal beams (21) arranged at intervals along a front-rear direction (y) of the chassis (1); a first adjusting assembly (7) arranged at the first side of the chassis (1) along the left-right direction (x) and used for adjusting an angle of the arm support (2) in a vertical plane along the front-rear direction (y); a counterweight assembly (4) arranged at a second side of the chassis (1) along the left-right direction (x); and a second adjusting assembly (9) arranged at the second side of the chassis (1) along the left-right direction (x) and used for adjusting an angle of the counterweight assembly (4) in a vertical plane along the front-rear direction (y).

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of engineering machinery, and in particular relates to a pipe hoisting machine. BACKGROUND

[0002] The construction of long-distance pipelines is increasing significantly, and will usher in the fifth construction peak of long-distance pipelines, which will greatly drive the demand for pipeline machinery. The mileage of pipeline projects is generally thousands of kilometers or even several thousand kilometers, spanning multiple provinces, and the construction environment along the line is complex and variable, including plains, mountains, deserts, hills, swamps, and snow-covered areas. Conventional equipment is difficult to meet the requirements of various environments, and pipeline construction will face various harsh environments, among which mountain slope construction is the most difficult. The slope jib is easily damaged by a large lateral load, and the main machine is easily unstable by a large torque, which poses a great challenge to us and brings opportunities for leading industry development, breaking through key core technology, and solving the technical problems of mountain hoisting pipes, which is imperative. SUMMARY

[0003] The present disclosure provides a pipe hoisting machine that can improve the safety of construction on mountain slopes.

[0004] The present disclosure provides a pipe hoisting machine, comprising:

[0005] a chassis;

[0006] an arm support provided on a first side of the chassis in the left-right direction, the arm support comprising two longitudinal beams spaced apart in the front-rear direction of the chassis;

[0007] a first adjusting assembly provided on the first side of the chassis in the left-right direction, for adjusting the angle of the arm support in the vertical plane in the front-rear direction;

[0008] a counterweight assembly provided on a second side of the chassis in the left-right direction; and

[0009] a second adjusting assembly provided on the second side of the chassis in the left-right direction, for adjusting the angle of the counterweight assembly in the vertical plane in the front-rear direction.

[0010] In some embodiments, the pipe hoisting machine further comprises a luffing mechanism for luffing the arm support, and the second adjusting assembly is configured to adjust the angle of the luffing mechanism in the vertical plane in the front-rear direction.

[0011] In some embodiments, the first adjusting assembly and the second adjusting assembly each comprise:

[0012] a fixed frame comprising a first mounting plate and a triangular frame, the first mounting plate being fixed to the chassis, and the triangular frame being fixed above the first mounting plate;

[0013] a movable frame rotatably mounted to the top of the triangular frame at a middle region of the movable frame in the front-rear direction via a first hinge shaft extending in the left-right direction; and

[0014] two first linear drive components respectively arranged at two sides of the triangular frame in the front-rear direction, and each of the two first linear drive components is hingedly connected to the fixed frame and the movable frame at two ends thereof.

[0015] In some embodiments, the counterweight assembly is mounted on the movable frame.

[0016] In some embodiments, the pipe hoisting machine further comprises a first support arranged on the movable frame, and the counterweight assembly is mounted on the movable frame via the first support.

[0017] In some embodiments, the counterweight assembly comprises two counterweights, one side of each of the two counterweights is provided with a first lug plate set, and the first support is provided with a second lug plate set at each of two sides thereof in the front-rear direction, the second lug plate set is connected to the first lug plate set to mount the counterweight on the first support.

[0018] In some embodiments, the first lug plate set comprises a plurality of first lug plates arranged at intervals in a height direction, the second lug plate set comprises a plurality of second lug plates arranged at intervals in the height direction, and the plurality of first lug plates are connected to the plurality of second lug plates one by one.

[0019] In some embodiments, the second lug plate set is rotatably connected to the first lug plate set in a plane perpendicular to the height direction.

[0020] In some embodiments, the first support is provided with two first hinge seats at a middle region of the first support in the front-rear direction, the top of the counterweight is provided with a second hinge seat, and the pipe hoisting machine further comprises two second linear drive components, two ends of each of the two second linear drive components are connected to the first hinge seat and the second hinge seat respectively to drive the counterweight to rotate.

[0021] In some embodiments, the pipe hoisting machine further comprises an amplitude changing mechanism for changing the amplitude of the boom, the amplitude changing mechanism and the counterweight assembly are mounted on the same movable frame, and in the left-right direction, the mounting region of the amplitude changing mechanism is located inward of the mounting region of the counterweight assembly.

[0022] In some embodiments, the pipe hoisting machine further comprises an amplitude changing mechanism for changing the amplitude of the boom, the amplitude changing mechanism comprises a third linear drive component and a third hinge seat, the third hinge seat is mounted on the movable frame, the center line of the third linear drive component is located in the central plane of the boom, the first end of the third linear drive component is connected to the third hinge seat, and the second end of the third linear drive component is connected to the boom.

[0023] In some embodiments, the pipe-laying machine further comprises a luffing mechanism for luffing the boom, the luffing mechanism comprising a second bracket mounted on the movable frame and a hoisting mechanism provided on the second bracket, the hoisting mechanism driving the boom to luff through a luffing wire rope.

[0024] In some embodiments, the bottom portions of the two longitudinal beams are respectively hinged to the two ends of the movable frame in the front-rear direction, and the hinge shafts are arranged in the front-rear direction.

[0025] In some embodiments, the chassis comprises a vehicle frame and two track frames, the two track frames being respectively connected to the two sides of the vehicle frame in the left-right direction, and the outside of the track frames being surrounded by tracks;

[0026] In some embodiments, the first mounting plate is mounted on one of the track frames and located close to the outside in the left-right direction, and the triangular frame and the two first linear drive components are located outside the track.

[0027] In some embodiments, the outer side of the track frame close to the bottom is provided with two extension plates, the two extension plates being arranged in the front-rear direction, and the first mounting plate being fixed on the two extension plates.

[0028] In some embodiments, the chassis comprises a vehicle frame and two track frames, the two track frames being respectively connected to the two sides of the vehicle frame in the left-right direction, and the outside of the track frames being surrounded by tracks;

[0029] In some embodiments, the first adjusting assembly and the second adjusting assembly each further comprise a connecting beam and a second mounting plate, the second mounting plate being mounted on the side of the vehicle frame, and the connecting beam being connected between the triangular frame and the second mounting plate, and the connecting beam being located above the track.

[0030] In some embodiments, the movable frame comprises a mounting beam and a triangular plate, the mounting beam being connected to the boom and the first linear drive component, and the middle region of the mounting beam being hinged to the triangular frame, the connecting side of the triangular plate being mounted on the inner side of the mounting beam in the left-right direction, and the top corner opposite to the connecting side of the triangular plate being provided with a shaft, the shaft extending in the left-right direction and being rotatably mounted on the second mounting plate.

[0031] In some embodiments, the pipe-laying machine further comprises a hoisting mechanism provided on the bottom region of the boom for driving the lifting hook to hoist through a hoisting wire rope.

[0032] In some embodiments, when the pipe-laying machine is on a slope, the first adjusting assembly is configured to adjust the boom to a vertical state, and the second adjusting assembly is configured to adjust the counterweight assembly and the luffing mechanism to a state adapted to the boom.

[0033] In some embodiments, the first adjusting assembly and the second adjusting assembly are synchronously adjusted.

[0034] In some embodiments, the boom rotates around a first hinge axis in a vertical plane in which the front-rear direction lies, the luffing mechanism and the counterweight assembly rotate around a second hinge axis in the vertical plane in which the front-rear direction lies, the first hinge axis and the second hinge axis both extend along the left-right direction, and the center lines coincide.

[0035] In some embodiments, the adjustment range of the first adjustment assembly and the second adjustment assembly is -30° to +30°, based on a direction perpendicular to the chassis.

[0036] The pipe-laying machine of the embodiments of the present disclosure can level the boom according to the slope through the first adjustment assembly, and can solve the technical problem of pipe-laying in complex mountainous environments. When driving on a slope or performing a lifting operation after leveling, the boom can be prevented from being damaged by side loads, and the entire machine can be prevented from being destabilized by a large torque, thereby ensuring the safety, reliability, and stability of the lifting on a slope. Moreover, in the process of leveling the boom, the angle of the counterweight assembly in the vertical plane in which the front-rear direction lies can be adjusted through the second adjustment assembly to adjust the center of gravity of the pipe-laying machine when working on a slope, so that the pipe-laying machine is kept in a stable state in cooperation with the leveling of the boom. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor.

[0038] Figure 1 FIG. 1 is a structural schematic view of a first embodiment of the pipe-laying machine of the present disclosure in a first perspective view.

[0039] Figure 2 FIG. 2 is a structural schematic view of the first embodiment of the pipe-laying machine of the present disclosure in a second perspective view.

[0040] Figure 3 FIG. 3 is a structural schematic view of the first embodiment of the pipe-laying machine of the present disclosure in a third perspective view.

[0041] Figure 4 FIG. 4 is a structural schematic view of a second embodiment of the pipe-laying machine of the present disclosure.

[0042] Figure 5 FIG. 5 is a structural schematic view of the chassis in a first perspective view.

[0043] Figure 6 FIG. 6 is a structural schematic view of the chassis in a second perspective view.

[0044] Figure 7 FIG. 7 is a structural schematic view of the chassis in a third perspective view.

[0045] Figure 8 Structure diagram of some embodiments of the chassis.

[0046] Figure 9 Structure diagram of the top of the first support mounted on the movable frame.

[0047] Figure 10 Structure diagram of the bottom of the first support mounted on the movable frame.

[0048] Figure 11 Structure diagram of the counterweight.

[0049] Figure 12 Structure diagram of the top of the movable frame.

[0050] Figure 13 Structure diagram of the bottom of the movable frame.

[0051] Figure 14 Diagram of the first perspective view of the pipe hoisting machine of the present disclosure in the leveling state on the slope.

[0052] Figure 15 Diagram of the second perspective view of the pipe hoisting machine of the present disclosure in the leveling state on the slope.

[0053] Figure 16 Side view of the pipe hoisting machine of the present disclosure in the leveling state on the slope.

[0054] Figure 17 Diagram of the two counterweights of the pipe hoisting machine of the present disclosure in the retracted state.

[0055] Explanation of reference signs

[0056] 1, chassis; 11, vehicle frame; 12, track frame; 121, extension plate; 13, track; 14, cab; 15, equipment room;

[0057] 2, boom; 21, longitudinal beam; 22, cross beam;

[0058] 3, lifting mechanism;

[0059] 4, counterweight assembly; 41, counterweight; 411, second hinge seat; 42, first ear plate group; 42', first ear plate; 40, second linear drive component;

[0060] 5, lifting steel wire rope; 6, lifting hook;

[0061] 7, first adjusting assembly; 70, first linear driving part; 71, first mounting plate; 72, tripod; 73, fourth hinged seat; 74, movable frame; 741, mounting beam; 7411, first hole; 7412, U-shaped hinged seat; 7413, fifth hinged seat; 742, triangular plate; 743, third mounting plate; 75, connecting beam; 75', second mounting plate; 751, second hole; 76, shaft; 77, nut; A, first hinged shaft;

[0062] 8, amplitude changing mechanism; 81, third linear driving part; 82, third hinged seat; 821, side plate; 822, connecting part; 823, ear plate; 824, fourth hinged seat; 83, second support; 84, winch mechanism; 85, amplitude changing steel wire rope; 86, pulley block;

[0063] 9, second adjusting assembly; 10, first support; 101, first hinged seat; 102, second ear plate group; 102', second ear plate group;

[0064] A, first hinged shaft; B, second hinged shaft;

[0065] x, left-right direction; y, front-rear direction; z, height direction. DETAILED DESCRIPTION

[0066] The technical solutions in the embodiments of the present disclosure will be described clearly and completely in combination with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without carrying out creative work are within the scope of protection of the present disclosure.

[0067] The technologies, methods and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the specification when appropriate.

[0068] In the description of the present disclosure, it should be understood that the terms "center", "transverse", "longitudinal", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present disclosure.

[0069] In the description of the present disclosure, it should be understood that the use of the words "first", "second" and the like words to define parts only facilitates the differentiation of the corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as a limitation on the scope of protection of the present disclosure.

[0070] As shown in Figures 1 to 17 , the present disclosure provides a pipe crane, in some embodiments, as shown in Figure 1 and Figure 2 , the pipe crane comprises a chassis 1, an arm support 2 provided on the first side of the chassis 1 along the left-right direction x, the arm support 2 comprising two longitudinal beams 21, the two longitudinal beams 21 being spaced apart along the front-rear direction y of the chassis 1, a hoisting mechanism 3 provided on the arm support 2 for hoisting operation of the hook 6, a first adjusting assembly 7 provided on the first side of the chassis 1 along the left-right direction x for adjusting the angle of the arm support 2 in the vertical plane along the front-rear direction y, a counterweight assembly 4 provided on the second side of the chassis 1 along the left-right direction x, and a second adjusting assembly 9 provided on the second side of the chassis 1 along the left-right direction x for adjusting the angle of the counterweight assembly 4 in the vertical plane along the front-rear direction y.

[0071] As shown in Figure 3 , the chassis 1 comprises a vehicle frame 11 and two track frames 12, the two track frames 12 being connected to the two sides of the vehicle frame 11 along the left-right direction x, and the track frames 12 being surrounded by the tracks 13. The cab 14 and the equipment room 15 can be provided above the vehicle frame 11 along the front-rear direction, and during driving, the equipment room 15 is located in the front region of the vehicle frame 11 and the cab 14 is located in the rear region of the vehicle frame 11.

[0072] The arm support 2 is provided on the first side of the chassis 1 along the left-right direction x, for example, Figure 1 , the arm support 2 is located on the left side, the arm support 2 comprises two longitudinal beams 21, the two longitudinal beams 21 being spaced apart along the front-rear direction y of the chassis 1, the two longitudinal beams 21 forming an A shape from top to bottom, and the two longitudinal beams 21 being connected by a cross beam 22. The first adjusting assembly 7 can rotate the arm support 2 in the vertical plane along the front-rear direction y to adjust the level.

[0073] The hoisting mechanism 3 is provided on the arm support 2 for hoisting operation of the hook 6, the hoisting operation including lifting or lowering heavy objects by the hook 6. The luffing mechanism 8 is used for luffing of the arm support 2, and the luffing mechanism 8 is independently provided with the hoisting mechanism 3. Luffing is to rotate the arm support 2 in the central plane thereof. The hoisting mechanism 3 and the luffing mechanism 8 can be aligned with the arm support 2 along the front-rear direction y.

[0074] The counterweight assembly 4 is located on the two sides of the chassis 1 along the left-right direction x with the arm support 2, respectively. When the arm support 2 performs hoisting operation, the center of gravity of the pipe crane is biased to one side of the arm support 2, and by providing the counterweight assembly 4, the stability of the pipe crane operation can be improved.

[0075] In view of the fact that the lifting boom and the lifting and luffing mechanism of the pipe hoisting machine do not have the leveling technology and cannot solve the problem of lifting construction on a large slope in a mountainous area, the embodiment can be applied to the operation in a mountainous area, the first adjusting assembly 7 can level the boom 2 according to the slope, and the problem of pipe hoisting technology in a complex environment in a mountainous area can be solved. When driving on a slope or performing lifting operation after leveling, the boom 2 can be prevented from being damaged due to side load, and the whole machine can be prevented from being unstable due to large torque, so as to ensure the safety, reliability and stability of lifting on a slope.

[0076] Moreover, in the process of leveling the boom 2, the second adjusting assembly 9 can be used to adjust the angle of the counterweight assembly 4 in the vertical plane in the front-rear direction y, so as to adjust the center of gravity of the pipe hoisting machine when the pipe hoisting machine operates on a slope, and thus the leveling of the boom 2 can keep the pipe hoisting machine in a stable state.

[0077] In addition, the lifting mechanism 3 is fixed on the boom 2, and when the boom 2 adjusts the angle in the longitudinal plane in the front-rear direction y, the lifting mechanism 3 can directly change the angle with the boom 2, so as to ensure the smooth lifting operation.

[0078] In some embodiments, the pipe hoisting machine further comprises a luffing mechanism 8 for luffing the boom 2, and the second adjusting assembly 9 is used to adjust the angle of the luffing mechanism 8 in the vertical plane in the front-rear direction y.

[0079] The luffing mechanism 8 is used for luffing the boom 2, and the luffing mechanism 8 is independently arranged with the lifting mechanism 3. The lifting mechanism 3 and the luffing mechanism 8 can be aligned with the boom 2 along the front-rear direction y.

[0080] The boom 2 can rotate in the central plane thereof to perform luffing. When the pipe hoisting machine is on a slope, if the boom 2 is in a vertical state through leveling, the boom 2 rotates in the vertical plane in the left-right direction x to perform luffing; if the boom 2 still has a certain angle with the vertical plane after leveling, the rotation plane of the boom 2 also has a certain angle with the vertical plane, but the rotation plane is always perpendicular to the chassis 1.

[0081] The embodiment can level the boom 2 and the luffing mechanism 8 according to the slope, and the first adjusting assembly 7 and the second adjusting assembly 9 are independent in structure, simple in structure, small in control difficulty, easy to operate, high in practicability and economy. Moreover, in the process of leveling the luffing mechanism 8 through the second adjusting assembly 9, the posture of the counterweight assembly 4 can also be adjusted to assist in changing the center of gravity of the pipe hoisting machine, so as to further improve the stability of the pipe hoisting machine, prevent the whole machine from being unstable due to large torque, and ensure the safety, reliability and stability of lifting on a slope.

[0082] In some embodiments, as shown in FIG. 1, Figure 1 andFigure 2 The first adjusting assembly 7 and the second adjusting assembly 9 each include a fixed frame including a first mounting plate 71 fixed to the chassis 1 and a triangular frame 72 fixed above the first mounting plate 71, a movable frame 74 rotatably mounted to the top of the triangular frame 72 at the middle region in the front-rear direction y through a first hinge shaft A extending in the left-right direction x, and two first linear drive components 70 respectively located at both sides of the triangular frame 72 in the front-rear direction y and each having two ends hingedly connected with the fixed frame and the movable frame 74. The bottom portions of the two longitudinal beams 21 are hingedly connected with both ends of the movable frame 74 in the front-rear direction y, and the hinge shafts are arranged in the front-rear direction y.

[0083] The first mounting plate 71 can be fixed to the position close to the outer side of the chassis 1 in the left-right direction x, the triangular frame 72 is located outside the chassis 1 as a whole, and the bottom surface of the triangular frame 72 is in contact with the first mounting plate 71. The first linear drive components 70 can be electric push rods, hydraulic cylinders or air cylinders, etc. The two first linear drive components 70 are in telescopic cooperation, and can realize the angle adjustment of the movable frame 74.

[0084] The first adjusting assembly 7 and the second adjusting assembly 9 of this embodiment have simple structure, high action reliability and easy control, can change the angle of the movable frame 74 in the vertical plane in the front-rear direction y, and thus reliably and accurately adjust the rotation angle of the boom 2, the counterweight assembly 4 or the luffing mechanism 8 in the vertical plane in the front-rear direction y. Moreover, the first adjusting assembly 7 and the second adjusting assembly 9 have the same structure and are respectively arranged at both sides of the chassis 1, which can make the structure of the pipe crane more symmetrical and simplify the structure.

[0085] In some embodiments, as shown in Figure 3 and Figure 4 , the counterweight assembly 4 is mounted on the movable frame 74.

[0086] In this embodiment, the two first linear drive components 70 are in telescopic cooperation to realize the angle adjustment of the movable frame 74, so as to drive the rotation of the counterweight assembly 4 in the vertical plane in the front-rear direction y, thereby changing the position of the center of gravity of the pipe crane.

[0087] In some embodiments, as shown in Figure 3 and Figure 4 , the pipe crane further includes a first support 10 arranged on the movable frame 74, and the counterweight assembly 4 is mounted on the movable frame 74 through the first support 10. For example, the first support 10 can be mounted at a position close to the outer side of the movable frame 74 in the left-right direction x, and the counterweight assembly 4 can be located in the region outside the movable frame 74 and outside the chassis 1, so as to better realize the adjustment of the center of gravity. For example, the main body portion of the first support 10 can have a cuboid or trapezoidal structure.

[0088] This embodiment can conveniently realize the installation and dismounting of the counterweight assembly 4 and the combination of multiple counterweights 41 by installing the counterweight assembly 4 on the movable frame 74 through the first support 10.

[0089] In some embodiments, as shown in Figure 3 and Figure 4 , the counterweight assembly 4 includes two counterweights 41, as shown in Figure 11 , one side of the counterweight 41 is provided with a first lug plate set 42, as shown in Figure 9 and Figure 10 , the first support 10 is provided with a second lug plate set 102 on both sides in the front-rear direction y, and the second lug plate set 102 is connected with the first lug plate set 42 to install the counterweight 41 on the first support 10. For example, the second lug plate set 102 is detachably connected with the first lug plate set 42, and the counterweight 41 can have a cuboid structure.

[0090] This embodiment can conveniently connect the two counterweights 41 on both sides of the first support 10 in the front-rear direction y and improve the connection reliability.

[0091] In some embodiments, as shown in Figure 11 , the first lug plate set 42 includes multiple first lug plates 42' arranged at intervals in the height direction z, as shown in Figure 9 and Figure 10 , the second lug plate set 102 includes multiple second lug plates 102' arranged at intervals in the height direction z, and the multiple first lug plates 42' are connected with the multiple second lug plates 102' one by one.

[0092] This embodiment can improve the connection reliability by arranging multiple connection points between the counterweight 41 and the first support 10.

[0093] In some embodiments, the second lug plate set 102 is rotatably connected with the first lug plate set 42 in a plane perpendicular to the height direction z. For example, the first lug plate 42' is rotatably connected with the second lug plate 102' at the corresponding position through a pin shaft extending in the height direction z.

[0094] As shown in Figure 17 , the angle between the two counterweights 41 is expanded to 180°, so that the counterweight 41 does not exceed the outer edge of the movable frame 74 in the left-right direction x, and in this retracted state, the counterweight 41 is parallel to the first support 10. Thus, during the travel of the pipe hoisting machine, if the travel space is narrow, the counterweight 41 can be prevented from colliding with other objects, so as to improve the passability of the pipe hoisting machine and improve the travel safety. During operation, the two counterweights 41 can be adjusted to an included angle less than 180°, at which time the counterweight 41 is at an angle to the first support 10.

[0095] The embodiment can further adjust the gravity center by changing the included angle between the two counterweights 41 on the basis of rotating the counterweight assembly 4 in the vertical plane in which the front-rear direction y lies by the second adjusting assembly 9 to change the attitude, so that the gravity center of the pipe lifting machine can be more flexibly adjusted according to actual operation requirements.

[0096] In some embodiments, as shown in Figure 9 The first support 10 is provided with two first hinge seats 101 in the middle region of the top along the front-rear direction y, as shown in Figure 11 The top of the counterweight 41 is provided with a second hinge seat 411, and the pipe lifting machine further comprises two second linear driving components 40, the two ends of the second linear driving components 40 are connected with the first hinge seat 101 and the second hinge seat 411 respectively, and are used for driving the counterweight 41 to rotate.

[0097] For example, the second linear driving component 40 can be an electric push rod, a hydraulic cylinder or an air cylinder, etc. The second linear driving component 40 can flexibly and conveniently adjust the angle of the counterweight 41 relative to the first support 10 by telescoping, so as to adjust the gravity center position of the pipe lifting machine and improve the stability of the pipe lifting machine when working on a slope.

[0098] In some embodiments, the pipe lifting machine further comprises a luffing mechanism 8 for luffing the boom 2, and the luffing mechanism 8 and the counterweight assembly 4 are both mounted on the same movable frame 74, and in the left-right direction x, the mounting region of the luffing mechanism 8 is located on the inner side of the mounting region of the counterweight assembly 4. Among them, the luffing mechanism 8 and the counterweight assembly 4 are mounted on the movable frame 74 away from the boom 2.

[0099] The embodiment mounts the luffing mechanism 8 and the counterweight assembly 4 on the same movable frame 74, can simultaneously adjust the angles of the luffing mechanism 8 and the counterweight assembly 4 by the second adjusting assembly 9, can reduce the difficulty of adjusting and controlling, and simplify the structure. Moreover, the luffing mechanism 8 is located on the side away from the boom 2, which is beneficial to applying a luffing force to the boom 2.

[0100] In some embodiments, as shown in Figure 4 The pipe lifting machine further comprises a luffing mechanism 8 for luffing the boom 2, and the luffing mechanism 8 comprises a third linear driving component 81 and a third hinge seat 82, the third hinge seat 82 is mounted on the movable frame 74, the center line of the third linear driving component 81 is located in the central plane of the boom 2, the first end of the third linear driving component 81 is connected to the third hinge seat 82, and the second end of the third linear driving component 81 is connected to the boom 2.

[0101] For example, the third linear driving component 81 can be a hydraulic cylinder, which can provide a larger driving force during the luffing, or the third linear driving component 81 can also be a pneumatic cylinder or an electric push rod, etc. The bottom end of the third linear driving component 81 is connected to the third hinged seat 82, and the top end is connected to the top end of the boom 2, which is used to provide driving force for the luffing of the boom 2 through the telescopic extension.

[0102] This embodiment uses the third linear driving component 81 to realize the luffing of the boom 2, which can eliminate the need to set the luffing wire rope, can reduce the structural complexity related to the luffing function, and improve the reliability of the luffing function. Moreover, the third linear driving component 81 has better rigidity compared with the wire rope, which can improve the accuracy of the luffing angle control. In addition, the telescopic limit position of the third linear driving component 81 can limit the limit position of the luffing of the boom 2, and there is no need to additionally set the limiting device for the luffing of the boom 2. Moreover, the bottom end of the third linear driving component 81 is hinged to the movable frame 74 through the third hinged seat 82, which facilitates the installation and leveling of the third linear driving component 81.

[0103] In some embodiments, as shown in FIG. 1, the pipe crane further comprises a luffing mechanism 8 for luffing the boom 2. The luffing mechanism 8 comprises a second support 83 and a winch mechanism 84. The second support 83 is installed on the movable frame 74, and the winch mechanism 84 is arranged on the second support 83. The winch mechanism 84 drives the boom 2 to luff through the luffing wire rope 85. Figures 1 to 3

[0104] In some embodiments, the second support 83 can comprise two support side plates, and the winch mechanism 84 can be installed between the two support side plates. The luffing wire rope 85 is wound around the winch mechanism 84. The second support 83 and the top end of the boom 2 can be provided with a pulley block 86, and the luffing wire rope 85 can pass through the pulley block 86.

[0105] This embodiment realizes the luffing through the winch mechanism 84 cooperating with the luffing wire rope 85, which can reduce the installation accuracy requirement along the length direction y between the luffing mechanism 8 and the boom 2. Even if there is a position deviation, since the luffing wire rope 85 is a flexible member, it can prevent the boom 2 from being subjected to a large load deviation. When the movable frame 74 rotates, the second support 83, the winch mechanism 84 and the luffing wire rope 85 are adjusted in angle, which can prevent the luffing wire rope 85 from being twisted, can improve the service life of the luffing wire rope 85, and does not affect the hoisting operation during the leveling operation.

[0106] In some embodiments, the bottom ends 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 shafts are arranged along the front-rear direction y.

[0107] ​The embodiment articulates two longitudinal beams 21 on the movable frame 74, and drives the boom 2 to level when driving the movable frame 74 to move through the first linear driving component 70.

[0108] In some embodiments, as shown in Figure 5 and Figure 6 The chassis 1 includes a vehicle frame 11 and two track frames 12, and the two track frames 12 are respectively connected to the vehicle frame 11 on both sides along the left-right direction x, and the outside of the track frame 12 is surrounded by the track 13. Among them, the first mounting plate 71 is mounted on one of the track frames 12, and is located close to the outside along the left-right direction x, and the triangular frame 72 and the two first linear driving components 70 are located outside the track 13.

[0109] The embodiment can install the first adjusting assembly 7 and the second adjusting assembly 9 through the two track frames 12, and does not affect the walking of the track 13.

[0110] In some embodiments, as shown in Figure 8 The outside of the track frame 12 close to the bottom is provided with two extension plates 121, and the two extension plates 121 are spaced apart along the front-rear direction y, and the first mounting plate 71 is fixed on the two extension plates 121.

[0111] Because 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, and by setting the extension plate 121, the first mounting plate 71 can be conveniently erected on the two extension plates 121, and the structure of the first mounting plate 71 can be simplified, and the triangular frame 72 can be located outside the track 13.

[0112] In some embodiments, as shown in Figures 5 to 7 The chassis 1 includes a vehicle frame 11 and two track frames 12, and the two track frames 12 are respectively connected to the vehicle frame 11 on both sides along the left-right direction x, and the outside of the track frame 12 is surrounded by the track 13. Among them, the first adjusting assembly 7 and the second adjusting assembly 9 further include a connecting beam 75 and a second mounting plate 75', the second mounting plate 75' is mounted on the side of the vehicle frame 11, and the connecting beam 75 is connected between the triangular frame 72 and the second mounting plate 75', and the connecting beam 75 is located above the track 13.

[0113] Among them, the second mounting plate 75' can adopt a plate structure, and can be mounted on the side of the vehicle frame 11 through fasteners. The connecting beam 75 has a preset distance from the track 13, and the connecting beam 75 can be connected to the area close to the top of the triangular frame 72.

[0114] The embodiment can stably and reliably fix the triangular frame 72, the structure in the first adjusting assembly 7 is not easy to deform during the leveling operation, and the adjusting precision of the leveling angle can be improved.

[0115] In some embodiments, as shown in Figure 9 and Figure 10 , the movable frame 74 includes a mounting beam 741 connected with the arm frame 2 and the first linear driving component 70, and a triangular plate 742 mounted on the inner side of the mounting beam 741 along the left-right direction x, and the top corner opposite to the connecting side of the triangular plate 742 is provided with a shaft 76 extending along the left-right direction x and rotatably mounted on the second mounting plate 75'.

[0116] In the second adjusting assembly 9, as shown in Figure 9 and Figure 10 , the mounting beam 741 extends along the front-rear direction y, and the mounting beam 741 as a whole is in an inverted U shape, and the top of the triangular frame 72 can be embedded in the inverted U-shaped structure and hinged with the mounting beam 741.

[0117] In the first adjusting assembly 7, as shown in Figure 12 and Figure 13 , the mounting beam 741 extends along the front-rear direction y, and the middle section of the mounting beam 741 can be in an inverted U shape, and a first hole 7411 can be provided on the side wall of the mounting beam 741, and the top of the fixed frame can be embedded in the inverted U-shaped structure and hinged with the mounting beam 741 through the first hole 7411. The mounting beam 741 is provided with a U-shaped hinged seat 7412 at each end, and the opening of the U-shaped hinged seat 7412 is located on the outer side of the mounting beam 741 along the left-right direction x, and the bottom end of each longitudinal beam 21 is mounted on the U-shaped hinged seat 7412, and the hinged shaft extends along the front-rear direction y to realize the amplitude change of the arm frame 2.

[0118] As shown in Figure 13 , the bottom of the mounting beam 741 is provided with a fifth hinged seat 7413 at each end along the front-rear direction y, and the two ends of the first linear driving component 70 are hinged with the fourth hinged seat 73 and the fifth hinged seat 7413 respectively, and the hinged shaft extends along the left-right direction x.

[0119] The movable frame 74 of the embodiment can be hinged with the chassis 1, the longitudinal beam 21 and the first linear driving component 70 at the same time, and can also be mounted on the vehicle frame 11 to improve the mounting stability, thereby improving the reliability and precision of leveling.

[0120] As shown in Figures 5 to 7As shown, the fourth hinge seats 73 are arranged on the first mounting plate 71 on both sides of the triangular frame 72. The second hinge seats 411 are arranged on the bottom of the mounting beam 741 at both ends in the front-rear direction y. The two ends of the first linear driving component 70 are hingedly connected to the first hinge seat 101 and the second hinge seat 411 respectively, and the hinge shafts extend in the left-right direction x.

[0121] As shown in Figure 9 , Figure 10 , Figure 12 and Figure 13 , the third mounting plate 743 is arranged on the top corner of the triangular plate 742 opposite the connecting side. The shaft 76 is arranged at the top corner of the triangular plate 742 through the third mounting plate 743 and passes through the second hole 751 on the second mounting plate 75'. The second mounting plate 75' is arranged on the side away from the connecting beam 75 and is screwed on the end of the shaft 76 with the nut 77 to fix the movable frame 74 to the vehicle frame 11.

[0122] The movable frame 74 of this embodiment can be hingedly connected to the triangular frame 72, the longitudinal beam 21 and the first linear driving component 70, and can also be mounted on the vehicle frame 11 to improve the stability of the installation, thereby improving the reliability and accuracy of the leveling.

[0123] In some embodiments, as shown in Figure 4 , the lifting mechanism 3 is arranged at the bottom area of the boom 2 to drive the lifting hook 6 through the lifting wire 5.

[0124] Among them, the lifting mechanism 3 can be arranged between the two longitudinal beams 21, which includes a lifting motor and a winding drum. One end of the lifting wire 5 is wound on the winding drum, and the other end passes from the area at the top between the two longitudinal beams 21 to the outside of the boom 2 and is connected to the lifting hook 6.

[0125] This embodiment fixes the lifting mechanism 3 on the boom 2. When the boom 2 adjusts the angle in the longitudinal plane in the front-rear direction y, the lifting mechanism 3 can directly change the angle with the boom 2, which can ensure the smooth lifting operation. Moreover, arranging the lifting mechanism 3 at the bottom area of the boom 2 can provide a larger lifting driving force through the lifting wire 5.

[0126] In some embodiments, as shown in Figures 14 to 16 , when the pipe lifting machine is on a slope, the first adjusting assembly 7 is configured to adjust the boom 2 to a vertical state, and the second adjusting assembly 9 is configured to adjust the counterweight assembly 4 and the luffing mechanism 8 to a state adapted to the boom 2.

[0127] When the crane is working on a slope, if the jib 2 is inclined relative to the vertical plane, the load will easily cause the jib 2 to be subjected to side load. By adjusting the jib 2 to be vertical through the first adjusting assembly 7, the jib 2 can be prevented from being subjected to side load, so as to avoid deformation or damage of the jib 2. At this time, the angle between the central plane of the jib 2 and the chassis 1 is not 90°. When the crane is working on an uphill slope, the included angle between the jib 2 and the front part of the chassis 1 is acute. When the crane is working on a downhill slope, the included angle between the jib 2 and the front part of the chassis 1 is obtuse.

[0128] Correspondingly, in order to ensure smooth crane operation, after the jib 2 is adjusted in the vertical plane in the front-rear direction, the luffing mechanism 8 is also rotated to the same angle, so as to prevent the luffing mechanism 8 from being twisted and prevent the jib 2 from being subjected to side load by exerting luffing and lifting forces in the central plane of the jib 2. Moreover, the counterweight assembly 4 is also rotated to the same angle as the luffing mechanism 8, so as to adjust the center of gravity of the pipe crane.

[0129] In the leveling state of this embodiment, when the mountain pipe crane special machine is driving on a slope or working, the jib 2 can be maximally prevented from being damaged due to side load and the whole machine can be prevented from being unstable due to large torque, so as to ensure the safety, reliability and stability of the crane on the slope.

[0130] In some embodiments, the first adjusting assembly 7 and the second adjusting assembly 9 are synchronously adjusted.

[0131] This embodiment can synchronously adjust the crane-related mechanisms, prevent the steel wire rope connected between the luffing mechanism 8 and the jib 2 from being twisted, improve the service life of the steel wire rope, and not affect the load operation when leveling operation is performed. Or when the third linear driving part 81 is used to drive luffing, the third linear driving part 81 can be prevented from being subjected to side load, so as to ensure smooth luffing operation.

[0132] In some embodiments, as shown in Figures 14 to 16 the jib 2 is rotated in the vertical plane in the front-rear direction y around the first hinge shaft A, the luffing mechanism 8 and the counterweight assembly 4 are rotated in the vertical plane in the front-rear direction y around the second hinge shaft B, the first hinge shaft A and the second hinge shaft B both extend along the left-right direction x and the center lines thereof coincide.

[0133] This embodiment can keep the relative positions of the jib 2 and the luffing mechanism 8 unchanged when they are leveled to the same angle, ensure safe crane operation, and synchronously adjust the counterweight assembly 4 and the luffing mechanism 8 to the same angle, so as to further ensure the safety of crane operation by adjusting the center of gravity.

[0134] In some embodiments, the adjusting range of the first adjusting assembly 7 and the second adjusting assembly 9 is -30° to +30° based on the direction perpendicular to the chassis 1.

[0135] The embodiment adjusts the arm support 2, the luffing mechanism 8 and the counterweight assembly 4 within the range of ±30° of the reference direction, can limit the leveling angle within a predetermined range, avoid the large change of the gravity center distribution of the pipe lifting machine caused by the too large leveling angle, and can improve the safety of the crane operation.

[0136] The working principle of the embodiment of the present application is as follows: during the crane construction on the mountain large slope, the arm support 2 is leveled by the first adjusting assembly 7, and the luffing mechanism 8 and the counterweight assembly 4 are leveled by the second adjusting assembly 9, so as to realize the leveling within the range of ±30° according to the slope angle. The first adjusting assembly 7 and the second adjusting assembly 9 can be leveled synchronously during the leveling, so as to ensure that the central plane of the arm support 2 and the central plane of the third linear driving part 81 always coincide. After the leveling is completed, the lifting operation is carried out, at this time, the arm support lifting will not be affected by the side load, and the whole machine will not be affected by the torque, so as to ensure the safety, reliability and stability of the slope lifting.

[0137] The above is only an exemplary embodiment of the present disclosure, and is not used to limit the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present 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). A counterweight assembly (4) is provided on the second side of the chassis (1) along the left-right direction (x); A luffing mechanism (8) is used to luff the boom (2); 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 counterweight component (4) and the amplitude-changing mechanism (8) in the vertical plane in the front-back direction (y). 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 counterweight component (4) and the luffing mechanism (8) to a state that is compatible with the boom (2). The first adjustment component (7) and the second adjustment component (9) are adjusted synchronously. Both the first adjustment assembly (7) and the second adjustment assembly (9) include: a fixed frame, including 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), which is rotatably mounted on the top of the tripod (72) via a first hinge axis (A) in the middle region along the front-rear direction (y), the first hinge axis (A) extending along the left-right direction (x); and two first straight lines. The 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); wherein the amplitude changing mechanism (8) and the counterweight assembly (4) are both mounted on the same movable frame (74), the counterweight assembly (4) includes two counterweights (41), and the pipe hoist also includes two second linear drive components (40) for driving the rotation of the corresponding counterweights (41). The pipe-laying machine also includes a first bracket (10), which is mounted on the movable frame (74), and the counterweight assembly (4) is mounted on the movable frame (74) via the first bracket (10).

2. The pipe-laying machine according to claim 1, characterized in that, The counterweight (41) has a first ear plate group (42) on one side, and the first bracket (10) has a second ear plate group (102) on both sides along the front-rear direction (y). The second ear plate group (102) is connected to the first ear plate group (42) to install the counterweight (41) on the first bracket (10).

3. The pipe-laying machine according to claim 2, characterized in that, The first ear plate group (42) includes a plurality of first ear plates (42') spaced apart along the height direction (z), and the second ear plate group (102) includes a plurality of second ear plates (102') spaced apart along the height direction (z). The plurality of first ear plates (42') and the plurality of second ear plates (102') are connected one-to-one.

4. The pipe-laying machine according to claim 2, characterized in that, The second ear plate assembly (102) is rotatably connected to the first ear plate assembly (42) in a plane perpendicular to the height direction (z).

5. The pipe-laying machine according to claim 4, characterized in that, The first bracket (10) has two first hinge seats (101) in the middle area along the front-back direction (y) at the top, and the counterweight (41) has a second hinge seat (411) at the top. The two ends of the second linear drive component (40) are connected to the first hinge seat (101) and the second hinge seat (411) respectively.

6. The pipe-laying machine according to claim 1, characterized in that, In the left-right direction (x), the mounting area of ​​the amplitude-changing mechanism (8) is located inside the mounting area of ​​the counterweight assembly (4).

7. The pipe-laying machine according to claim 1, characterized in that, The luffing mechanism (8) includes a third linear drive component (81) and a third hinge seat (82). The third hinge seat (82) is mounted on the movable frame (74). The centerline of the third linear drive component (81) is located in the center plane of the boom (2). The first end of the third linear drive component (81) is connected to the third hinge seat (82), and the second end of the third linear drive component (81) is connected to the boom (2).

8. The pipe-laying machine according to claim 1, characterized in that, The luffing mechanism (8) includes a second support (83) and a winch mechanism (84). The second support (83) is mounted on the movable frame (74), and the winch mechanism (84) is located on the second support (83). The winch mechanism (84) drives the boom (2) to luff via a luffing wire rope (85).

9. The pipe-laying machine according to claim 1, characterized in that, The bottoms of the two longitudinal beams (21) are respectively hinged to the two ends of the movable frame (74) in the front-rear direction (y), and the hinge axis is set in the front-rear direction (y).

10. The pipe-laying machine according to any one of claims 2 to 9, 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).

11. The pipe-laying machine according to claim 10, 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).

12. The pipe-laying machine according to any one of claims 2 to 9, 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) and the second adjustment component (9) both further include: a connecting beam (75) and a second mounting plate (75'), the second mounting plate (75') is mounted on the side of the frame (11), the connecting beam (75) is connected between the triangular frame (72) and the second mounting plate (75'), and the connecting beam (75) is located above the track (13).

13. The pipe-laying machine according to claim 12, 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 (76). The shaft (76) extends in the left-right direction (x) and is rotatably mounted on the second mounting plate (75').

14. The pipe-laying machine according to any one of claims 1 to 9, characterized in that, It also includes a lifting mechanism (3), located in the bottom area of ​​the boom (2), for lifting operations by driving the hook (6) through the lifting wire rope (5).

15. 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 mechanism (8) and the counterweight assembly (4) rotate 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.

16. 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°.

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