CN218860202U

CN218860202U - Front support device of auxiliary arm of crawler crane

Info

Publication number: CN218860202U
Application number: CN202223058022.2U
Authority: CN
Inventors: 刘文波; 张�林
Original assignee: Xuzhou Chengkun Machinery Manufacturing Co ltd
Current assignee: Xuzhou Chengkun Machinery Manufacturing Co ltd
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2023-04-14
Anticipated expiration: 2032-11-17

Abstract

The utility model discloses a sub-boom fore-stock device of crawler crane, including the main arm mounting panel, the first fixed orifices of four groups have been seted up on the main arm mounting panel, main arm mounting panel top is equipped with first sub-arm mounting panel, the main arm mounting panel is connected through being equipped with fastening component with first sub-arm mounting panel, four second fixed orifices of group have been seted up on the first sub-arm mounting panel, two sets of first hydraulic telescoping rod of fixedly connected with on the first sub-arm mounting panel bottom surface, two sets of second hydraulic telescoping rod of fastening component top fixedly connected with, buffer spring has all been cup jointed with the second hydraulic telescoping rod to first hydraulic telescoping rod, the sub-arm mounting panel of first hydraulic telescoping rod and second hydraulic telescoping rod top fixedly connected with second. Compared with the prior art, a crawler crane auxiliary arm fore-stock device, structural stability is better, more to the support fixed point of auxiliary arm, prevent skew, take precautions against earthquakes dynamic deformation's effect is better.

Description

Front support device of auxiliary arm of crawler crane

Technical Field

The utility model relates to a hoist field, in particular to crawler crane's fly jib front bracket device.

Background

The crawler crane is a mechanical device which adopts a crawler walking chassis and can lift a heavy object to a certain height, and the crawler crane generally relates to installation of a luffing jib in order to improve the lifting height and the working amplitude of the crawler crane. With the development of national industrial transformation and urbanization process, the rapid development of high-speed rail, subway, urban construction and the like at home and abroad, the working condition of the variable-amplitude auxiliary arm of the crawler crane with medium and small tonnage is rapidly developed and applied, the movable construction in a narrow range is carried out among highly developed urban high-rise buildings, the tower crane is used as a tower crane, and the movable construction is easy to rapidly move. When the hoisting height exceeds the length of the suspension arm, the auxiliary arm needs to be arranged at the upper end of the suspension arm, so that the hoisting height can be increased, and the auxiliary arm and the suspension arm can be fixed by using the front support device; firstly, the front support device directly contacts and supports the auxiliary arm, and has no buffer structure, so that the rigid collision between the auxiliary arm and the front support device is easily caused by jolting or vibration in the moving process of the crawler crane or when the auxiliary arm is retracted, and the front support device is easily damaged; and current fore-stock device is fixed from a direction basically when fixed fly jib, and the fixed point is more single, transversely does not have bearing structure, and the structure is not stable enough, when jolting or vibrations, makes the fly jib produce the skew because fixed not fastening very easily, may cause the unable normal work of fly jib under the serious condition, and this just needs the staff to overhaul, wastes time and energy to influence the course of work.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a caterpillar crane's fly jib front bracket device, can effectively solve the problem among the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a crawler crane's fly jib front bracket device, includes the main arm mounting panel, four groups of first fixed orificess have been seted up on the main arm mounting panel, main arm mounting panel top is equipped with first fly jib mounting panel, the main arm mounting panel is connected through being equipped with fastening components with first fly jib mounting panel, four groups of second fixed orificess have been seted up on the first fly jib mounting panel, two sets of first hydraulic telescoping rod of fixedly connected with on the first fly jib mounting panel bottom surface, two sets of second hydraulic telescoping rod of fastening components top fixedly connected with, first hydraulic telescoping rod all has cup jointed buffer spring with the second hydraulic telescoping rod, first hydraulic telescoping rod and the fly jib mounting panel top fixedly connected with second fly jib mounting panel, a plurality of fly jib mounting grooves have evenly been seted up on the second fly jib mounting panel top, first draw-in groove has been seted up on main arm mounting panel top, the second draw-in groove has been seted up on one side of first fly jib mounting panel top, a plurality of through-holes have all evenly been seted up with to first draw-in groove and the second draw-in groove, main arm mounting panel one side fixedly connected with four groups of board arch type board.

As a further description of the above technical solution, the fastening assembly includes a first clamping member and a second clamping member, a plurality of clamping grooves and first holes are provided on the bottom surface of the first clamping member at equal distance from the side surface, a plurality of second holes are provided on the bottom surface of the second clamping member at equal distance from the side surface, the first holes and the second holes correspond to the positions of the through holes and are matched with each other in shape and diameter, and the first clamping member is connected with the second clamping member through a plurality of screw assemblies.

As a further description of the above technical solution, the screw rod assembly includes a threaded rod, the threaded rod is inserted in the first hole, the second hole and the through hole, a limit nut is connected to the threaded rod through a thread, and the limit nut is embedded in the clamping groove.

As a further description of the above technical solution, the first clamping member is clamped in the first clamping groove and the second clamping groove, and the second clamping member is clamped at one side of the main arm mounting plate and the bottom end of the first sub-arm mounting plate.

As a further description of the above technical solution, the top end of the arch-shaped plate is fixedly connected to the bottom end of the first sub-arm mounting plate, and the arch-shaped plate is provided with arc-shaped holes.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. through setting up first fly jib mounting panel, the fly jib mounting panel of second, second fixed orifices and fly jib mounting groove, install first fly jib mounting panel in the fly jib side, the fly jib bottom is then installed on the fly jib mounting panel of second through the fly jib mounting groove.

2. Through setting up first hydraulic telescoping rod, second hydraulic telescoping rod and buffer spring, the fly jib can receive first hydraulic telescoping rod, second hydraulic telescoping rod and buffer spring's double buffering when withdrawing the fore-stock device, has avoided the rigid offend of fly jib and fore-stock device, prevents because the degeneration or the damage that bump and produce the structure, has played the guard action better to equipment.

3. Through setting up fastening components, arch-shaped plate and arc hole, threaded rod in the fastening components alternates in first hole, second hole and pass through the through-hole, and with stop nut threaded connection, stop nut then restricts at the joint inslot, makes stop nut can not receive vibrations and breaks away from the threaded rod, has guaranteed the fastening of structure, according to arched stability characteristic, also makes more stable between main arm mounting panel and the first sub arm mounting panel moreover.

Drawings

Fig. 1 is a schematic view of the overall structure of a sub-boom front support device of a crawler crane of the present invention;

fig. 2 is a schematic structural view of a front view state of a front support device of a fly jib of a crawler crane according to the present invention;

FIG. 3 is a schematic structural view of a front bracket device of a fly jib of a crawler crane in a front view state;

fig. 4 is a schematic side view of a front support device of a sub-boom of a crawler crane according to the present invention;

fig. 5 is a schematic view of a front cross-sectional structure of a front support device of a fly jib of a crawler crane according to the present invention;

fig. 6 is an enlarged view of a structure at a position a of the sub-boom front support device of the crawler crane of the present invention.

In the figure: 1. a main arm mounting plate; 2. a first fixing hole; 3. a first sub-arm mounting plate; 4. a fastening assembly; 5. a second fixing hole; 6. a first hydraulic telescopic rod; 7. a second hydraulic telescopic rod; 8. a buffer spring; 9. a second sub-arm mounting plate; 10. an auxiliary arm mounting groove; 11. a first card slot; 12. a second card slot; 13. a through hole; 14. an arch plate; 41. a first clip member; 42. a second clip member; 43. a clamping groove; 44. a first hole; 45. a second hole; 46. a screw assembly; 461. a threaded rod; 462. a limit nut; 141. an arc-shaped hole.

Detailed Description

In order to make the utility model realize the technical means, the creation characteristics and the achievement purpose, the utility model is easy to understand and understand, and the utility model is further explained by combining the specific implementation mode.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-6, the present invention provides a technical solution: a front bracket device of an auxiliary arm of a crawler crane comprises a main arm mounting plate 1, wherein four groups of first fixing holes 2 are formed in the main arm mounting plate 1, the main arm mounting plate 1 is fixed on the side surface of a main arm of the crane through the first fixing holes 2, a first auxiliary arm mounting plate 3 is arranged at the top end of the main arm mounting plate 1, the main arm mounting plate 1 is connected with the first auxiliary arm mounting plate 3 through a fastening component 4, four groups of second fixing holes 5 are formed in the first auxiliary arm mounting plate 3, two groups of first hydraulic telescopic rods 6 are fixedly connected to the bottom surface of the first auxiliary arm mounting plate 3, two groups of second hydraulic telescopic rods 7 are fixedly connected to the top end of the fastening component 4, buffer springs 8 are sleeved on the first hydraulic telescopic rods 6 and the second hydraulic telescopic rods 7, a second auxiliary arm mounting plate 9 is fixedly connected to the top ends of the first hydraulic telescopic rods 6 and the second hydraulic telescopic rods 7, a plurality of auxiliary arm mounting grooves 10 are uniformly formed in the top end of the second auxiliary arm mounting plate 9, the second sub-arm mounting plate 9 is fixed at the lower end of the sub-arm of the crane through the sub-arm mounting groove 10, when the lower end of the sub-arm is fixed, the second sub-arm mounting plate 9 moves downwards under the pressure of the sub-arm through the dual functions of the first hydraulic telescopic rod 6, the second hydraulic telescopic rod 7 and the buffer spring 8, the hard collision between the sub-arm and the front bracket device is avoided, the structural degeneration or damage caused by the collision is prevented, the better protection effect on equipment is achieved, when the top end of the second sub-arm mounting plate 9 moves downwards to the position below the second fixing hole 5 on the upper side and the lower side of the first sub-arm mounting plate 3, the first sub-arm mounting plate 3 is fixed on the side surface of the sub-arm of the crane through the second fixing hole 5, the fixing effect is better when the sub-arm is supported by the front bracket device, the fixing is carried out from multiple directions, the jolt or the sub-arm generated in the moving process of the crawler crane is prevented from generating position offset, the stability of the secondary arm support is ensured.

The top end of the main arm mounting plate 1 is provided with a first clamping groove 11, one side of the top end of the first auxiliary arm mounting plate 3 is provided with a second clamping groove 12, a plurality of through holes 13 are uniformly formed in the first clamping groove 11 and the second clamping groove 12, four groups of arch plates 14 are fixedly connected to one side of the main arm mounting plate 1, the top ends of the arch plates 14 are fixedly connected to the bottom end of the first auxiliary arm mounting plate 3, arc holes 141 are formed in the arch plates 14, the arc holes 141 can disperse stress, and according to the stability characteristic of an arch, the main arm mounting plate and the first auxiliary arm mounting plate are more stable; the fastening assembly 4 comprises a first clamping piece 41 and a second clamping piece 42, the first clamping piece 41 is clamped in the first clamping groove 11 and the second clamping groove 12, the second clamping piece 42 is clamped at one side of the main arm mounting plate 1 and the bottom end of the first sub-arm mounting plate 3, a plurality of clamping grooves 43 and first holes 44 are formed in the bottom surface and the side surface of the first clamping piece 41 at equal distances, a plurality of second holes 45 are formed in the bottom surface and the side surface of the second clamping piece 42 at equal distances, the first holes 44 and the second holes 45 correspond to the positions of the through holes 13 and are matched in shape and diameter, the first clamping piece 41 and the second clamping piece 42 are connected through a plurality of screw rod assemblies 46, each screw rod assembly 46 comprises a threaded rod 461, the threaded rod 461 is inserted in the first holes 44, the second holes 45 and the through holes 13, a limiting nut 462 is in threaded connection with the threaded rod 461, the limiting nut 462 is embedded in the clamping grooves 43, the threaded rod 461 is in threaded connection with the limiting nut 462, the limiting nut 462 can be limited in the clamping grooves 43, the limiting nut 462 can not be separated from the threaded rod 461 from the fastening of the threaded rod, and the fastening performance of the threaded rod structure is guaranteed.

It should be noted that, the utility model relates to a sub-boom fore-stock device of crawler crane, the worker installs the main boom mounting plate 1 on the main boom side of the crawler crane through the first fixing hole 2 first, then fasten the first sub-boom mounting plate 3 with the main boom mounting plate 1 through four groups of arch-shaped plates 14, the top and side of the four groups of arch-shaped plates 14 are respectively and fixedly connected with the bottom of the first sub-boom mounting plate 3 and the side of the main boom mounting plate 1, the arch-shaped plates 14 are all provided with arc-shaped holes 141, the arrangement of the arc-shaped holes 141 can disperse the stress, according to the stability characteristic of the arch, the main boom mounting plate 1 and the first sub-boom mounting plate 3 are more stable, then the first clamping member 41 is clamped in the first clamping groove 11 and the second clamping groove 12, the clamping groove 43 in the first clamping member 41 is provided with the limit nut 462, the second clamping member 42 is supported tightly on the bottom of the first sub-boom mounting plate 3 and the side of the main boom mounting plate 1, the first hole 44 and the second hole 45 are in one-to-one correspondence with the position of the through hole 13, then the threaded rod 461 is inserted from the second hole 45 and extends into the second hole 45, then the threaded rod 461 is rotated by a wrench, the threaded rod 461 is in threaded connection with a limit nut 462 embedded in the clamping groove 43, the limit nut 462 is limited in the clamping groove 43, the limit nut 462 is not subject to vibration and is separated from the threaded rod 461, the tightness of the structure is ensured, finally two groups of first hydraulic telescopic rods 6 are fixedly connected with the horizontal end of the first sub-arm mounting plate 3, two groups of second hydraulic telescopic rods 7 are fixedly connected with the top end of the first clamping piece 41, the first hydraulic telescopic rods 6 and the second hydraulic telescopic rods 7 are sleeved with buffer springs 8, and then the top ends of the first hydraulic telescopic rods 6 and the second hydraulic telescopic rods 7 are fixedly connected with the second sub-arm mounting plate 9, it has a plurality of fly jib mounting grooves 10 to equally divide on the top of second fly jib mounting panel 9, when crawler crane's fly jib receipts playback behind second fly jib mounting panel 9, through first hydraulic telescoping rod 6, the dual function downwardly moving of second hydraulic telescoping rod 7 and buffer spring 8, after the top of second fly jib mounting panel 9 shifts down 5 below of second fixed orifices of the downside on first fly jib mounting panel 3, through fly jib mounting groove 10 with the bottom mounting of second fly jib mounting panel 9 and crawler crane fly jib, then fix the side of passing through second fixed orifices 5 with the crawler crane fly jib with 3 perpendicular of first fly jib mounting panel again. Compare with current crawler crane's fly jib front brace device, the utility model discloses a design can make the fly jib receive the fore-stock device when supporting fixed effect better, fixes from a plurality of directions, prevents that crawler crane from jolting or vibrations that the removal in-process produced from making the fly jib produce the offset, has ensured the stability that the fly jib supported, has also avoided the hard offend of fly jib and fore-stock device, the damage of preventing to warp, the stability of whole device, the more outstanding of fastening nature moreover.

The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The front support device for the auxiliary boom of the crawler crane comprises a main boom mounting plate (1) and is characterized in that four groups of first fixing holes (2) are formed in the main boom mounting plate (1), a first auxiliary boom mounting plate (3) is arranged at the top end of the main boom mounting plate (1), the main boom mounting plate (1) is connected with the first auxiliary boom mounting plate (3) through a fastening assembly (4), four groups of second fixing holes (5) are formed in the first auxiliary boom mounting plate (3), two groups of first hydraulic telescopic rods (6) are fixedly connected to the bottom surface of the first auxiliary boom mounting plate (3), two groups of second hydraulic telescopic rods (7) are fixedly connected to the top end of the fastening assembly (4), buffer springs (8) are sleeved on the first hydraulic telescopic rods (6) and the second hydraulic telescopic rods (7), a second auxiliary boom mounting plate (9) is fixedly connected to the top ends of the first hydraulic telescopic rods (6) and the second hydraulic telescopic rods (7), a plurality of auxiliary booms (10) are uniformly formed at the top end of the second auxiliary boom mounting plate (1), a plurality of second auxiliary boom mounting grooves (11) are formed in one side of the first auxiliary boom mounting plate (12), and a plurality of second auxiliary boom mounting grooves (12) are uniformly formed in one side of the second auxiliary boom mounting plate, four groups of arch plates (14) are fixedly connected to one side of the main arm mounting plate (1).

2. The fore-stock device of the fly jib of the crawler crane according to claim 1, wherein the fastening component (4) comprises a first clamping member (41) and a second clamping member (42), a plurality of clamping grooves (43) and a first hole (44) are formed on the bottom surface and the side surface of the first clamping member (41) at equal distances, a plurality of second holes (45) are formed on the bottom surface and the side surface of the second clamping member (42) at equal distances, the first hole (44) and the second hole (45) correspond to the through hole (13) in position and are matched in shape and caliber, and the first clamping member (41) and the second clamping member (42) are connected through a screw rod component (46).

3. The boom fore-bracket device of the crawler crane according to claim 2, wherein the screw assembly (46) comprises a threaded rod (461), the threaded rod (461) is inserted into the first hole (44), the second hole (45) and the through hole (13), a limit nut (462) is connected to the threaded rod (461) in a threaded manner, and the limit nut (462) is embedded in the clamping groove (43).

4. The front bracket device of the fly jib of crawler crane according to claim 2, wherein said first engaging member (41) is engaged in the first engaging groove (11) and the second engaging groove (12), and the second engaging member (42) is engaged at one side of the main jib mounting plate (1) and the bottom end of the first fly jib mounting plate (3).

5. The fore-jib support device of crawler crane according to claim 1, wherein the top end of said arched plate (14) is fixedly connected to the bottom end of the first mounting plate (3) of the secondary jib, and said arched plates (14) are provided with arc-shaped holes (141).