CN210944614U

CN210944614U - Novel tower arm connecting device

Info

Publication number: CN210944614U
Application number: CN201921967882.3U
Authority: CN
Inventors: 焦光立; 罗念宁; 刘玉
Original assignee: Xuzhou Guolian Construction Machinery Co ltd
Current assignee: Xuzhou Guolian Construction Machinery Co ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-07-07
Anticipated expiration: 2029-11-15

Abstract

The utility model relates to a tower arm technical field specifically is a novel tower arm is connected device, connect including first joint and second, first joint and the mutual symmetry grafting of second joint, the slot has all been seted up at first joint and second joint top, first joint and second joint top are provided with a plurality of rubber heads, a plurality of spacing chambeies have been seted up to the slot inner chamber on the first joint, the slip of spacing intracavity is provided with the card pearl, the draw-in groove has been seted up to the slot inner chamber side of second joint, the axle groove of intercommunication has been seted up to first joint and second joint side, axle groove inner chamber cover is equipped with the axle sleeve, axle sleeve inner chamber cover is equipped with the round pin axle, the round pin axle passes through bolt fixed connection at the axle sleeve both ends, first joint and second joint side all are provided with the locking clamp plate of two symmetries, the locking clamp plate passes through bolt fixed connection in first joint and second joint side, the utility model discloses stability and the security that can effectual.

Description

Novel tower arm connecting device

Technical Field

The utility model relates to a tower arm technical field specifically is a novel tower arm is connected device.

Background

The cargo boom is generally a truss structure and is used as an important component of the hoisting machinery, the reasonable structure and the strength of the connection structure between arm sections play a crucial role in the stability and the safety of the whole hoisting machinery, the tower crane boom is a lattice type welding part formed by connecting a plurality of sections of boom frames, the boom frame comprises an upper chord, two lower chords and web members for connecting the chords, the chords are hollow structures spliced and welded by angle steel, the upper chords are connected by pin shafts, at present, most of tower cranes rely on the amplitude variation motion of a hoisting trolley on the lower chord of the cargo boom to realize the accurate rising and falling of suspended loads, when the tower-arm connecting device bears larger mechanical strength, the safety and the stability of the crane arm can not be effectively ensured, in addition, a pin shaft for connecting the tower arm is easy to fall off, so that accidents are easy to cause.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel tower arm connecting device to solve the ordinary tower arm connecting device security and the poor stability problem that provide among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a novel tower-arm connecting device comprises a first joint and a second joint, wherein the first joint and the second joint are symmetrically inserted with each other, the top parts of the first joint and the second joint are both provided with slots, the top parts of the first joint and the second joint are provided with a plurality of rubber heads, a plurality of limiting cavities are arranged in the inner cavity of the slot on the first joint, clamping beads are arranged in the limiting cavities in a sliding manner, the side surface of the inner cavity of the slot of the second joint is provided with a clamping slot, the side surfaces of the first joint and the second joint are provided with communicated shaft slots, the inner cavity of the shaft groove is sleeved with a shaft sleeve, the inner cavity of the shaft sleeve is sleeved with a pin shaft, the pin shaft is fixedly connected with the two ends of the shaft sleeve through a bolt, the side surfaces of the first joint and the second joint are provided with two symmetrical stop pressing plates, and the stop pressing plates are fixedly connected to the side surfaces of the first joint and the second joint through bolts.

Preferably, the clamping beads are matched with the clamping grooves, and the clamping beads are arranged in the limiting cavity in a sliding mode through springs.

Preferably, the two locking pressing plates arranged on the side surface of the first joint and the two locking pressing plates arranged on the side surface of the second joint are symmetrical to each other, and the side surfaces of the two locking pressing plates are both provided with a limiting arc which is matched with the shaft sleeve.

Preferably, the two pins penetrate through the shaft sleeve and the pin shaft, and the shaft sleeve is fixedly connected with the pin shaft through the pins.

Preferably, the shaft sleeve penetrates through the side faces of the first joint and the second joint, and the outer wall of the shaft sleeve is tightly attached and bonded with the inner wall of the shaft groove.

Preferably, the rubber head is matched with the slot, and the rubber head is tightly attached to the inner cavity of the slot.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this novel tower arm connecting device mutually supports through setting up card pearl and draw-in groove for first splice box second connects and can carry out the joint, guarantees stability, avoids unexpected the drop to cause the accident.

2. This novel tower arm connecting device mutually supports with the axle sleeve through the spacing arc that sets up the locking clamp plate, and it is spacing to protect the axle sleeve, avoids making the axle sleeve warp receiving the extrusion, avoids round pin axle deformation to make the bolt warp and drop, has guaranteed the security of tower arm.

3. This novel tower arm connecting device is through setting up the rubber head for first splice box second connects closely the laminating, and the rubber head is wear-resisting anticorrosive, makes first joint and second connect can peg graft fixedly, further guarantees the stability and the security of tower arm.

Drawings

FIG. 1 is an assembly diagram of the overall structure of the present invention;

FIG. 2 is an exploded view of the overall structure of the present invention;

FIG. 3 is a top sectional view of the overall structure of the present invention;

fig. 4 is a partial schematic view of the structure at a of the present invention.

In the figure: 1. a first joint; 10. a slot; 11. a shaft groove; 12. a stop pressing plate; 120. a bolt; 121. limiting an arc; 13. a limiting cavity; 130. a spring; 131. clamping the beads; 14. a rubber head; 2. A second joint; 21. a card slot; 3. a shaft sleeve; 4. a pin shaft; 5. and (4) a bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "center line", "longitudinal", "lateral", "length", "width", "thickness", "depth", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be taken as limiting the invention, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example 1

A novel tower arm connecting device, in order to solve the problem of poor safety and stability of a common tower arm connecting device, as a preferred embodiment, as shown in figure 1, figure 2, figure 3 and figure 4, comprises a first joint 1 and a second joint 2, wherein the first joint 1 and the second joint 2 are symmetrically inserted into each other, slots 10 are respectively arranged at the top of the first joint 1 and the top of the second joint 2, a plurality of rubber heads 14 are arranged at the top of the first joint 1 and the top of the second joint 2, a plurality of limiting cavities 13 are arranged in the inner cavity of the slot 10 on the first joint 1, clamping beads 131 are arranged in the limiting cavities 13 in a sliding manner, clamping grooves 21 are arranged on the side surfaces of the inner cavity of the slot 10 on the second joint 2, a communicated shaft groove 11 is arranged on the side surfaces of the first joint 1 and the second joint 2, a shaft sleeve 3 is arranged in the inner cavity of the shaft groove 11, a shaft 4 is arranged in the inner cavity of the shaft, two symmetrical stop pressing plates 12 are arranged on the side surfaces of the first joint 1 and the second joint 2, and the stop pressing plates 12 are fixedly connected to the side surfaces of the first joint 1 and the second joint 2 through bolts 120.

In this example, card pearl 131 and draw-in groove 21 looks adaptation, and card pearl 131 slides through spring 130 and sets up in spacing chamber 13, mutually supports the joint through card pearl 131 and draw-in groove 21 for first joint 1 and second connect 2 sides and carry out spacing joint, avoid first joint 1 and second to connect 2 misplacements, make axle sleeve 3 warp, guaranteed the stability of tower arm.

Further, two locking pressing plates 12 that the first joint 1 side set up and two locking pressing plates 12 that the second joint 2 side set up are symmetrical each other, and spacing arc 121 has all been seted up to two locking pressing plates 12 sides, and spacing arc 121 and axle sleeve 3 looks adaptation are mutually supported through two locking pressing plates 12 and axle sleeve 3, can carry on spacingly to 3 outer walls of axle sleeve, avoid because the high strength operation, cause 3 deformations of axle sleeve for bolt 5 drops.

Specifically, two bolts 5 all pass axle sleeve 3 and round pin axle 4, and axle sleeve 3 and round pin axle 4 carry out spacing fixed through bolt 5 to axle sleeve 3 and round pin axle 4 through 5 fixed connection of bolt, guarantee the stability of tower arm.

Further, axle sleeve 3 passes first joint 1 and second and connects 2 sides, and the 3 outer walls of axle sleeve closely laminate with 11 inner walls of shaft groove and bond, connects 2 through first joint 1 of axle sleeve 3 one side fixed connection and second, and on the other hand protects round pin axle 4 and bolt 5, avoids the accident to drop, causes the accident danger.

Besides, the rubber head 14 is matched with the slot 10, the rubber head 14 is tightly attached to the inner cavity of the slot 10, and the rubber head 14 is tightly matched with the slot 10, so that the stability of the first connector 1 and the second connector 2 is further ensured.

The utility model discloses tower arm connecting device is when using, connect 2 to mutually support through first joint 1 and second and peg graft, make rubber head 14 and the cooperation of closely laminating of slot 10 inner chamber, through calorie pearl 131 and draw-in groove 21 joint of mutually supporting, then closely bond with 11 inner walls of axostylus axostyle through 3 outer walls of axle sleeve, make first joint 1 and second connect 2 firm connections, guarantee the stability of tower arm, meanwhile, spacing arc 121 through locking clamp plate 12 mutually supports with 3 outer walls of axle sleeve, avoid making axle sleeve 3 warp because the operation of high strength, and then avoided round pin axle 4 and the increase of 5 fit clearance of bolt, thereby prevent that bolt 5 accident from droing, the security and the stability of tower arm have been guaranteed.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a novel tower arm connecting device, includes first joint (1) and second joint (2), its characterized in that: the first connector (1) and the second connector (2) are symmetrically inserted and connected with each other, slots (10) are formed in the tops of the first connector (1) and the second connector (2), a plurality of rubber heads (14) are arranged on the tops of the first connector (1) and the second connector (2), a plurality of limiting cavities (13) are formed in the inner cavity of each slot (10) in the first connector (1), clamping beads (131) are arranged in the limiting cavities (13) in a sliding mode, clamping grooves (21) are formed in the side faces of the inner cavity of each slot (10) in the second connector (2), communicated shaft grooves (11) are formed in the side faces of the first connector (1) and the second connector (2), a shaft sleeve (3) is sleeved in the inner cavity of each shaft groove (11), a pin shaft (4) is sleeved in the inner cavity of each shaft sleeve (3), and the pin (4) is fixedly connected with the two ends of each shaft sleeve (3) through a bolt (5, the side surfaces of the first joint (1) and the second joint (2) are provided with two symmetrical stop pressing plates (12), and the stop pressing plates (12) are fixedly connected to the side surfaces of the first joint (1) and the second joint (2) through bolts (120).

2. The novel tower arm connecting device of claim 1, wherein: the clamping bead (131) is matched with the clamping groove (21), and the clamping bead (131) is arranged in the limiting cavity (13) in a sliding mode through a spring (130).

3. The novel tower arm connecting device of claim 1, wherein: two locking pressing plates (12) arranged on the side face of the first connector (1) are mutually symmetrical with two locking pressing plates (12) arranged on the side face of the second connector (2), limiting arcs (121) are arranged on the side faces of the two locking pressing plates (12), and the limiting arcs (121) are matched with the shaft sleeve (3).

4. The novel tower arm connecting device of claim 1, wherein: the two bolts (5) penetrate through the shaft sleeve (3) and the pin shaft (4), and the shaft sleeve (3) and the pin shaft (4) are fixedly connected through the bolts (5).

5. The novel tower arm connecting device of claim 1, wherein: the shaft sleeve (3) penetrates through the side faces of the first connector (1) and the second connector (2), and the outer wall of the shaft sleeve (3) is tightly attached and bonded with the inner wall of the shaft groove (11).

6. The novel tower arm connecting device of claim 1, wherein: the rubber head (14) is matched with the slot (10), and the rubber head (14) is tightly attached to the inner cavity of the slot (10).