CN215669429U

CN215669429U - Cantilever crane structure and dynamic compaction machine

Info

Publication number: CN215669429U
Application number: CN202121464399.0U
Authority: CN
Inventors: 史建明; 张扬; 孙沈浩
Original assignee: Sany America Inc
Current assignee: Sany America Inc
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2022-01-28
Anticipated expiration: 2031-06-29

Abstract

The utility model provides a boom structure and a dynamic compactor, which comprise: the arm frame comprises an arm frame main body, wherein an arm head piece is arranged at the top end of the arm frame main body, the arm head piece comprises an arm head main body and a bearing rod extending from the arm head main body, and at least the bearing rod is suitable for bearing a piece to be conveyed; a reinforcement assembly, comprising: the first end of the support rod structure is arranged on the arm head main body and movably connected with the arm head main body, and the second end of the support rod structure extends towards one side of the force bearing direction of the arm head part; the traction assembly at least comprises a first traction part and a second traction part, the first ends of the first traction part and the second traction part are respectively connected to the stay bar structure, the second ends of the first traction part and the second traction part are connected to the arm support main body and are respectively arranged on two sides of the stay bar structure, and the second end of the first traction part is connected to the bearing rod.

Description

Cantilever crane structure and dynamic compaction machine

Technical Field

The utility model relates to the technical field of engineering machinery, in particular to a boom structure and a dynamic compactor.

Background

The dynamic compactor is a machine for compacting and loosening soil in building engineering, and is released after a rammer is lifted to a preset height, so that the falling rammer impacts and extrudes the loosened soil to realize compaction of the loosened soil.

In the prior art, a ram and other structures are hung on a boom frame of a suspension arm of a dynamic compaction machine, in order to improve the compaction effect, the preset height for hoisting the ram needs to be improved as much as possible, and then the set height of the boom head needs to be improved.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to overcome the defect of poor hoisting capability of the dynamic compaction machine in the prior art, so that the boom structure and the dynamic compaction machine are provided.

The utility model provides a boom structure, comprising: cantilever crane main part and reinforcing component.

The top end of the arm support main body is provided with an arm head piece, and the arm head piece comprises an arm head main body and a bearing rod extending from the arm head main body; a reinforcement assembly, comprising: at least one brace bar structure and a pulling assembly; the first end of the support rod structure is arranged on the arm head main body and movably connected with the arm head main body, and the second end of the support rod structure extends towards one side of the arm head part in the force bearing direction; the traction assembly at least comprises a first traction part and a second traction part, first ends of the first traction part and the second traction part are respectively connected to the stay bar structure, second ends of the first traction part and the second traction part are connected to the arm support main body and are respectively arranged on two sides of the stay bar structure, and a second end of the first traction part is connected to the bearing rod.

The arm head further includes: the elastic connecting rod is connected with the end part of the bearing rod at one end, the arm head main body is connected with the other end of the bearing rod at the other end, the arm head main body is connected with the top end of the arm frame main body and is suitable for bearing a piece to be conveyed, the first end of the bearing rod is arranged on the arm head main body, the second end of the bearing rod extends along the lateral direction of the arm head main body and is suitable for bearing the piece to be conveyed, and the elastic connecting rod is connected with the bearing rod and the arm head main body to form a triangular structure.

The elastic connecting rod is provided with an elastic part along the length direction and is suitable for absorbing the elastic potential energy of the bearing rod after the bearing rod releases the piece to be conveyed.

The first ends of the first pulling part and the second pulling part are both connected to the second end of the brace rod structure.

The arm support main body comprises a first section arm, the arm head piece is arranged on the first section arm, and the second end of the second traction part is connected to the bottom end of the first section arm.

The first drawing part and the second drawing part are of pull rope structures.

The first drawing part and the second drawing part are in chain structures.

Still be provided with loose pulley assembly on the arm head spare, loose pulley assembly includes: the first pulley piece, the second pulley piece and the hook device; the first pulley piece is arranged on the arm head main body; the second pulley piece is arranged at the second end of the bearing rod; the lifting hook devices are respectively arranged on the first pulley piece and the second pulley piece and are suitable for lifting the pieces to be conveyed.

The present invention also provides a dynamic compactor, comprising: the arm support structure is arranged on the dynamic compactor body.

The lifting hook device is provided with a rammer serving as a to-be-conveyed part in a lifting mode, and the rammer and the dynamic compactor body are connected through a towing hook machine pull rope.

The technical scheme of the utility model has the following advantages:

1. the arm support structure provided by the utility model comprises: the arm support comprises an arm support main body, wherein an arm head piece is arranged at the top end of the arm support main body, the arm head piece comprises an arm head main body and a bearing rod extending from the arm head main body, and at least the bearing rod is suitable for bearing a piece to be conveyed; a reinforcement assembly, comprising: the first end of the support rod structure is arranged on the arm head main body and movably connected with the arm head main body, and the second end of the support rod structure extends towards one side of the arm head part in the force bearing direction; the pulling assembly at least comprises a first pulling part and a second pulling part, first ends of the first pulling part and the second pulling part are respectively connected to the stay bar structure, second ends of the first pulling part and the second pulling part are connected to the arm support main body and are respectively arranged on two sides of the stay bar structure, and a second end of the first pulling part is connected to the bearing bar.

The arm head main body is movably connected with a support rod structure, the support rod structure is respectively connected with the bearing rod and the arm head main body through the first traction part and the second traction part, in addition, due to the fact that all the parts are connected with each other, the reinforcing component is arranged on the other side of the force bearing direction of the arm head part, when the arm frame structure works, at least the bearing rod bears hoisting tension, meanwhile, the second end of the first traction part is connected to the bearing rod, the traction force and the hoisting tension of the bearing rod are respectively arranged on the two sides of the arm frame main body, bending moment of the hoisting tension on the section of the arm frame is reduced, the hoisting capacity of the arm frame is improved, and the defect that the hoisting capacity of a strong tamper is poor in the prior art is overcome.

2. In the arm support structure provided by the utility model, the arm head piece further comprises: the elastic connecting rod is connected with the end part of the bearing rod at one end, the arm head main body is connected with the other end of the bearing rod at the other end, the arm head main body is connected with the top end of the arm frame main body and is suitable for bearing a piece to be conveyed, the first end of the bearing rod is arranged on the arm head main body, the second end of the bearing rod extends along the lateral direction of the arm head main body and is suitable for bearing the piece to be conveyed, and the elastic connecting rod is connected with the bearing rod and the arm head main body to form a triangular structure.

Through setting up the elastic connecting rod, connect carrier bar and arm head main part, make whole be the setting of triangle-shaped structure, utilize triangle-shaped's stability, guaranteed arm head spare overall structure's firm, improved the bearing capacity of carrier bar.

3. According to the arm support structure provided by the utility model, the elastic connecting rod is provided with the elastic part along the length direction, and the elastic connecting rod is suitable for absorbing the elastic potential energy of the bearing rod after the bearing rod releases the part to be conveyed.

After the conveying piece borne on the bearing rod is released, the bearing rod can elastically deform under the action of resilience, and then can drive the arm support main body to tilt backwards.

4. The arm support structure provided by the utility model is characterized in that the arm support main body comprises a first section arm, the first section arm is provided with the arm head piece, and the second end of the second traction part is connected to the bottom end of the first section arm.

On one hand, on the premise of ensuring that one side of the strut structure is stably pulled, the second pulling part is installed on the first knuckle arm, the bottom end of the whole arm support main body is not required to be arranged, and the installation difficulty and the arrangement cost of the second pulling part are reduced; on the other hand, compared with the first traction part, the length of the second traction part is increased, the angle between the second traction part and the support rod structure is adjusted, the bearing level of the adjusting traction assembly is further increased, the traction force of the reinforcing assembly to the bearing rod is further increased, the bending moment of the hoisting tension force added to the cross section of the arm support is effectively reduced, and the hoisting capacity of the arm support is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a dynamic compactor provided in an embodiment of the utility model;

FIG. 2 is a partial structural schematic diagram of a boom structure in the dynamic compaction machine shown in FIG. 1;

fig. 3 is a schematic structural view of an arm head piece in the arm support structure shown in fig. 2;

description of reference numerals:

1. a boom main body; 11. an arm head piece; 111. an arm head main body; 112. a carrier bar; 113. an elastic link; 12. a first joint arm; 13. a sheave assembly; 131. a hook device; 2. a reinforcement assembly; 21. a strut structure; 221. a first drawing part; 222. a second drawing part; 3. a dynamic compactor body; 4. a rammer; 5. towing pintle machine stay cord.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" 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," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to fig. 3, the present embodiment provides a boom structure, which includes a boom main body 1 and a reinforcing component 2.

The arm support main body 1 is arranged in a steel frame shape and formed by connecting a plurality of section arms, the section arm at the top side in the vertical direction is a first section arm 12, an arm head piece 11 is arranged at the top end of the first section arm 12, the arm head piece 11 comprises an arm head main body 111 and a bearing rod 112 extending from the arm head main body 111, and at least the bearing rod bears a piece to be conveyed.

The reinforcing component 2 comprises a stay bar structure 21 and a pulling structure, as a preferred embodiment, a stay bar structure 21 is provided, and is in a door-shaped arrangement, and comprises a top rod and two side rods, wherein a first end of each side rod is arranged on the arm head main body 111 and is hinged with the arm head main body 111, and a second end of each side rod extends towards one side of the arm head 11 in the bearing direction, and in the embodiment, the arm head main body 111 and the bearing rod 112 on the arm head 11 are in the bearing structure of the arm head 11. As an alternative embodiment, a plurality of brace rod assemblies can be arranged, and the brace rod assemblies can also be arranged into a V-shaped or M-shaped structure.

The pulling assembly comprises a first pulling part 221 and a second pulling part 222, in this embodiment, the first pulling part 221 and the second pulling part 222 are both pull rope structures, first ends of the first pulling part 221 and the second pulling part 222 are respectively connected to the stay bar structure 21, second ends of the first pulling part 221 and the second pulling part 222 are connected to the arm support body 1 and are respectively disposed at two sides of the stay bar structure 21, wherein the second end of the first pulling part 221 is connected to an end of the carrier bar 112. As an alternative embodiment, the first drawing part 221 and the second drawing part 222 may have a chain structure or a link structure. As another alternative embodiment, the pulling assembly may be provided with a plurality of pulling portions, and a plurality of strut assemblies are correspondingly connected. The arm head main body 111 is hinged with the support rod structure 21 and is respectively connected with the bearing rod 112 and the arm frame main body 1 through the first drawing part 221 and the second drawing part 222, in addition, because all the parts are connected with each other, the reinforcing component 2 is arranged on the other side of the force bearing direction of the arm head part 11, when the arm frame structure works, at least the bearing rod 112 bears the lifting tension force, meanwhile, the second end of the first drawing part 221 is connected on the bearing rod 112, the pulling force of the first drawing part to the bearing rod 112 and the lifting tension force are respectively arranged on two sides of the arm frame main body 1, the bending moment of the lifting tension force added to the cross section of the arm frame is reduced, the lifting capacity of the arm frame is improved, and the defect that the lifting capacity of a strong tamper is poor in the prior art is overcome. As an alternative embodiment, the brace structure 21 and the arm head main body 111 may be additionally provided with a rotating shaft member movably connected.

The arm head piece 11 includes an arm head main body 111 and a bearing rod 112 and an elastic link 113. The lateral side of the arm head main body 111 is arranged in a hexagon shape, is fixedly connected with the top end of the first section arm 12 and can bear a piece to be conveyed; the first end of the carrying rod 112 is fixedly connected to the arm head body 111, and the second end of the carrying rod 112 extends along the lateral direction of the arm head body 111, which is opposite to the strut structure 21, and the carrying rod 112 can also carry the member to be transported. In this embodiment, the elastic link 113 is disposed on the upper side of the carrier bar 112, and connects the end of the carrier bar 112 and the arm head main body 111, and the three are connected to form a triangular structure. As an alternative embodiment, the elastic link 113 may not be provided. As another alternative embodiment, the elastic link 113 may also be provided on the underside of the carrier bar 112.

Through setting up elastic connecting rod 113, both ends are connected carrier bar 112 and arm head main part 111 respectively, make whole triangle-shaped structure setting, utilize triangle-shaped stability, have guaranteed the firm of arm head 11 overall structure, have improved carrier bar 112's bearing capacity.

In this embodiment, the elastic connecting rod 113 is provided with an elastic member, specifically a spring, and it may also be provided that the elastic connecting rod 113 itself is made of an elastic material, such as spring steel, and the elastic member is provided to make the elastic connecting rod 113 stretch along the length direction, and also may elastically deform along the circumferential direction, and the elastic member may absorb the elastic potential energy of the carrying rod 112 after releasing the to-be-carried member.

After the conveying member carried on the bearing rod 112 is released, the bearing rod 112 can elastically deform under the action of resilience, and then can drive the arm support main body 1 to tilt backwards, and by arranging the elastic member on the elastic connecting rod 113, when the bearing rod 112 deforms, the elastic potential energy of the bearing rod 112 can be absorbed through the elastic deformation of the elastic member, so that the bearing rod is prevented from driving the arm support main body 1 to displace, and the arm support main body 1 is prevented from overturning.

In this embodiment, the second end of the strut structure 21 is provided with a receiving groove capable of being hinged to the first end of the first pulling part 221 and the second pulling part 222, as an alternative embodiment, the strut structure 21 can be telescopically arranged, as another alternative embodiment, the receiving groove of the strut structure 21 can also be provided as a receiving hole on the strut structure 21 at another position with a different distance from the first end.

In this embodiment, the second end of the second pulling portion 222 is connected to the bottom end of the first knuckle arm 12. On one hand, the second traction part 222 is arranged on the first knuckle arm 12 on the premise of ensuring stable traction on one side of the stay bar structure 21, the bottom end of the whole arm support main body 1 is not required to be arranged, and the installation difficulty and the arrangement cost of the second traction part 222 are reduced; on the other hand, compared with the first traction part, the length of the second traction part 222 is increased, the angle between the second traction part 222 and the support rod structure 21 is adjusted, the bearing level of the adjusting traction assembly is further increased, the traction force of the reinforcing assembly 2 on the bearing rod 112 is further increased, the bending moment of the hoisting tension force on the cross section of the arm support is effectively reduced, and the hoisting capacity of the arm support is improved. As an alternative embodiment, the second end of the second pulling part 222 may also be disposed on the other side arm support body 1, which is away from the arm head body 111 and is bounded by the brace structure 21, such as the bottom end position of the arm support body 1.

In addition, still be provided with loose pulley assembly 13 on arm head 11, loose pulley assembly 13 includes a plurality of pulley spare and sets up hook assembly 131 on the pulley spare, is provided with first pulley spare on arm head main part 111, is provided with second pulley spare on the second end of carrier bar 112, and operating personnel can be through the lift of the rotation control hook assembly 131 of each pulley spare, and the last hoist and mount of hook assembly 131 is waited to carry the piece.

The present embodiment also provides a dynamic compactor, including: dynamic compaction machine body 3 and foretell cantilever crane structure, dynamic compaction machine body 3 is the carrying carrier, is equipped with the cantilever crane structure that upwards extends on it, and dynamic compaction machine body 3 is connected through drawing and pulling with loose pulley assembly 13, can control the lift of treating the transport piece. In this embodiment, the to-be-transported member is a rammer 4, and is suspended on the hook device 131, and the rammer 4 is connected with the dynamic compactor body 3 through a towing hook machine rope 5 below the rammer 4.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the utility model may be made without departing from the spirit or scope of the utility model.

Claims

1. An arm support structure, characterized by comprising:

the arm support comprises an arm support main body (1), wherein an arm head piece (11) is arranged at the top end of the arm support main body, the arm head piece (11) comprises an arm head main body (111) and a bearing rod (112) extending from the arm head main body (111), and at least the bearing rod is suitable for bearing a piece to be conveyed;

a reinforcement assembly (2) comprising:

the first end of the support rod structure (21) is arranged on the arm head main body (111) and movably connected with the arm head main body (111), and the second end of the support rod structure (21) extends towards one side of the force bearing direction of the arm head piece (11);

the pulling assembly at least comprises a first pulling part (221) and a second pulling part (222), first ends of the first pulling part (221) and the second pulling part (222) are respectively connected to the support rod structure (21), second ends of the first pulling part (221) and the second pulling part (222) are connected to the arm frame main body (1) and are respectively arranged on two sides of the support rod structure (21), and a second end of the first pulling part (221) is connected to the bearing rod (112).

2. Boom structure according to claim 1, characterized in that the boom head (11) further comprises:

the elastic connecting rod (113) is connected with one end of the bearing rod (112) and the other end of the elastic connecting rod is connected with the arm head main body (111), the arm head main body (111) is connected with the top end of the arm frame main body (1) and is suitable for bearing a piece to be conveyed, the first end of the bearing rod (112) is arranged on the arm head main body (111), the second end of the bearing rod extends along the side direction of the arm head main body (111) and is suitable for bearing the piece to be conveyed, and the elastic connecting rod is connected with the bearing rod (112) and the arm head main body (111) to form a triangular structure.

3. The boom structure of claim 2, characterized in that the elastic connecting rod (113) is provided with an elastic member along the length direction, and is adapted to absorb the elastic potential energy of the carrying rod (112) after releasing the member to be transported.

4. Boom structure according to any of claims 1-3, characterized in that the first ends of the first pulling part (221) and the second pulling part (222) are each connected to the second end of the brace bar structure (21).

5. The boom structure according to claim 4, characterized in that the boom body (1) comprises a first knuckle arm (12), the arm head (11) is arranged on the first knuckle arm (12), and the second end of the second pulling part (222) is connected to the bottom end of the first knuckle arm (12).

6. Boom structure according to claim 1, characterized in that the first pulling part (221) and the second pulling part (222) are pull rope structures.

7. Boom structure according to claim 1, characterized in that the first pulling part (221) and the second pulling part (222) are chain structures.

8. The boom structure according to claim 2, characterized in that a pulley assembly (13) is further provided on the boom head (11), the pulley assembly (13) comprising:

a first pulley member provided on the arm head main body (111);

a second pulley member disposed at a second end of the carrier bar (112);

and the lifting hook devices (131) are respectively arranged on the first pulley piece and the second pulley piece and are suitable for lifting the piece to be conveyed.

9. A dynamic compactor, comprising:

a dynamic compaction machine body (3);

the boom structure of any one of claims 1-8, being arranged on the dynamic compactor body (3).

10. The dynamic compaction machine according to claim 9, wherein a ram (4) is suspended from the hook device (131) as a part to be transported, and the ram (4) and the dynamic compaction machine body (3) are connected by a tow hook rope (5).