CN217102830U

CN217102830U - Truss arm and working machine

Info

Publication number: CN217102830U
Application number: CN202220609169.7U
Authority: CN
Inventors: 张永才; 孙雪峰; 李�浩
Original assignee: Sany America Inc
Current assignee: Sany America Inc
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-08-02
Anticipated expiration: 2032-03-18

Abstract

The utility model relates to an operation machinery technical field provides a truss arm and operation machinery. The truss arm includes a side assembly, the side assembly including: the first chord member, the second chord member, at least two groups of straight web members with different lengths and at least two reinforcing rod assemblies. Any group of straight web members can be selectively connected between the first chord member and the second chord member; the reinforcing rod component comprises a first web member and a second web member which are rotatably connected, the first web member is rotatably connected with the first chord member, and the second web member is detachably connected with the second chord member; the first chord member is provided with a first connecting structure for connecting with the second web member; the second chord is provided with a second connecting structure used for being connected with the connecting structure between the first web member and the second web member; the inclination direction of at least one first web member is opposite to the inclination direction of the remaining first web members. The truss arm can be variable in cross section, so that road transportation regulations can be met, and arm support combinations with different cross sections can be realized.

Description

Truss arm and working machine

Technical Field

The utility model relates to an operation machinery technical field especially relates to a truss arm and operation machinery.

Background

Work machines, including but not limited to cranes, typically include a boom arm. The truss arm is mainly formed by welding a main chord member, an oblique rod, a connecting head and the like. In order to improve the load capacity of the truss arm, the truss arm can only be developed in a wider and higher direction, but the length, the width and the height of transported objects are strictly limited according to road transportation regulations.

The cross section of the truss arm in the prior art cannot be adjusted generally, so that the truss arm is not convenient to transport and transport, and cannot be changed in section to adapt to different working occasions.

SUMMERY OF THE UTILITY MODEL

The utility model provides a truss arm and operation machinery for solve among the prior art truss arm and be not convenient for transport the transportation, and can not carry out the defect of variable cross section in order to adapt to different work occasions, make the truss arm can carry out the variable cross section, in order to adapt to different work occasions, and improve the transportation convenience of truss arm.

The utility model provides a truss arm, including the side subassembly, the side subassembly includes: the first chord member, the second chord member, at least two groups of straight web members with different lengths and at least two reinforcing rod members;

any group of straight web members can be selectively connected between the first chord member and the second chord member;

the reinforcing rod component comprises a first web member and a second web member which are rotatably connected with each other, the first web member is rotatably connected with the first chord member, and the second web member is detachably connected with the second chord member;

the first chord member is provided with a first connecting structure which is detachably connected with the second web member;

the second chord is provided with a second connecting structure used for being connected with the connecting structure between the first web member and the second web member;

the inclination direction of at least one of the first web members is opposite to the inclination direction of the remaining first web members.

According to the utility model provides a truss arm, the connecting structure comprises a connecting fastener;

connect the fastener respectively with first web member with the second web member rotationally is connected, connect the fastener be used for with second connection structure is connected.

According to the utility model provides a pair of truss arm, connect the fastener be provided with be used for with the connecting hole that second connection structure is connected.

According to the truss arm provided by the utility model, the number of the side assemblies is at least two;

at least two side assemblies are sequentially arranged along the width direction of the truss arm;

any two adjacent side assemblies are connected.

According to the utility model provides a pair of truss arm, arbitrary adjacent two between the side subassembly, first chord member with the second chord member sets up relatively to set up relatively first chord member with pass through between the second chord member straight web member with the stiffener subassembly is connected.

According to the utility model provides a pair of truss arm, arbitrary adjacent two between the side subassembly, two first chord member sets up relatively, two the second chord member sets up relatively to between two relative first chord members that set up and all pass through between two relative second chord members that set up straight web member with the stiffener subassembly is connected.

According to the utility model provides a pair of truss arm still includes the connecting rod, arbitrary adjacent two the side subassembly passes through the connecting rod is connected.

According to the utility model provides a pair of truss arm, connect the fastener and set up to the triangle-shaped structure, just the quantity of connecting hole sets up to one.

According to the utility model provides a pair of truss arm, connect the fastener and set up to the rectangle structure, just the quantity of connecting hole sets up to two.

According to the utility model provides a pair of truss arm, first connection structure with second connection structure all sets up to the connecting seat.

The utility model also provides an operation machine, include as above the truss arm.

The utility model provides a truss arm, in the application occasion of wide cross-section of needs, can be with straight web member group link between first chord member and second chord member. And, make second web member be connected with the second chord member to guarantee that the interval between first chord member and the second chord member is great. In applications requiring a narrow cross section, the set of straight webs may be removed from between the first chord and the second web may be removed from the second chord. Then, connect the second web member in first connection structure, connect the connection structure between first web member and the second web member in second connection structure simultaneously to reduce the interval between first chord member and the second chord member, with the width that reduces the cross section, thereby satisfy work demand and transportation demand.

By the arrangement, the truss arm provided by the embodiment of the utility model can be variable in cross section, so that road transportation regulations can be met; and arm support combinations with different sections can be realized, so that different requirements on the width of the section of the arm support under different working conditions are met.

Further, the present invention provides a working machine, which includes a truss arm, and therefore, includes all the advantages of the truss arm.

Drawings

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

Fig. 1 is a schematic structural view of a side assembly provided in an embodiment of the present invention;

FIG. 2 is a schematic illustration of a process of varying the cross-section of the side assembly shown in FIG. 1;

fig. 3 is a schematic illustration of a process of varying the cross-section of a side assembly provided in an embodiment of the invention;

fig. 4 is a schematic view of a first positional relationship of two side members of a truss arm provided in an embodiment of the present invention;

fig. 5 is a schematic view of a second positional relationship of two side members of a truss arm provided in an embodiment of the present invention;

fig. 6 is a front view of a truss arm provided in an embodiment of the invention;

FIG. 7 is a schematic structural view of the truss arm of FIG. 6 after being cross-sectioned;

fig. 8 is a schematic structural view of a first connecting fastener provided in an embodiment of the present invention;

fig. 9 is a schematic structural view of a second connecting fastener provided in an embodiment of the present invention.

Reference numerals:

1. a first chord; 2. a second chord;

3. a stiffener assembly; 301. a first web member; 302. a second web member; 303. connecting fasteners; 3031. connecting holes; 3032. a hinge hole;

4. a first right web member; 5. a first connecting structure; 6. a second connecting structure; 7. a second web member.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are 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 efforts belong to the protection scope of the present invention.

A truss arm provided in an embodiment of the present invention is described below with reference to fig. 1 to 9.

Wherein the truss arms include side assemblies.

Referring to fig. 1-3, the side assembly includes a first chord 1, a second chord 2, at least two sets of straight web members of different lengths, and at least two stiffener assemblies 3.

Any group of straight web members can be selectively connected between the first chord member 1 and the second chord member 2. Each group of straight web members comprises at least two straight web members. Specifically, both ends of each straight web member are detachably connected to the first chord member 1 and the second chord member 2, respectively.

For example, the first chord 1 and the second chord 2 are each provided with a connecting seat for connecting with a straight web member. The both ends of straight web member are connected with first chord member 1 and second chord member 2 through detachable round pin axle articulated respectively.

The stiffener assembly 3 includes a first web member 301 and a second web member 302, and the first web member 301 and the second web member 302 are rotatably connected to each other. Wherein the first web member 301 is rotatably connected to the first chord 1, and the second web member 302 is detachably connected to the second chord 2.

For example, the first web member 301 and the first chord 1 may be hinged to each other by a pin. The second web member 302 may be hinged to the second chord 2 by a detachable pin.

The first chord 1 is provided with a first connecting structure 5 for detachable connection with the second web member 302.

The second chord 2 is provided with a second connecting structure 6 for connection with the connecting structure between the first web member 301 and the second web member 302.

For example, the first connecting structure 5 and the second connecting structure 6 may both be provided as connection seats. Referring to fig. 2 and 3, after the second web member 302 is detached from the second chord 2, the second web member 302 may be connected to the first connecting structure 5 by a pin. Meanwhile, after the second web member 302 and the second chord member are detached, the connection structure between the first web member 301 and the second web member 302 and the second connection structure 6 may be connected by a pin.

Referring to fig. 1-7, at least one of the first web members 301 is inclined in a direction opposite to the inclination of the remaining first web members 301. In both wide section and narrow section applications, the inclination of at least one first web member 301 is reversed with respect to the inclination of the remaining first web members 301 to ensure overall stability of the truss arm.

The embodiment of the utility model provides a truss arm, straight web member can be first straight web member group and the straight web member group of second. Wherein, first straight web member group includes two at least first straight web members 4, and the straight web member of second group includes two at least second straight web members 7.

Specifically, referring to FIG. 1, in applications where a wide cross-section is desired, a first straight web member 4 may be connected between the first chord 1 and the second chord 2. And, the second web member 302 is connected to the second chord 2, thereby ensuring a large space between the first chord 1 and the second chord 2.

Referring to fig. 2-3, in applications where a narrow cross-section is desired, the first web member 4 can be removed from between the first chord 1 and the second chord 2 and the second web member 302 can be removed from the second chord 2. Then, the second web member 302 is connected to the first connecting structure 5, and at the same time, the connecting structure between the first web member 301 and the second web member 302 is connected to the second connecting structure 6, so that the distance between the first chord 1 and the second chord 2 is reduced to reduce the width of the cross section, thereby satisfying the work requirement and the transportation requirement. Finally, the second straight web member 7 can be connected between the first chord member 1 and the second chord member 2, thereby improving the structural strength and rigidity of the truss arm in a narrow cross section state, and further improving the bearing capacity of the truss arm.

With the arrangement, the truss arm provided by the embodiment of the utility model can be provided with variable cross sections, thereby meeting road transportation regulations; and arm support combinations with different sections can be realized, so that different requirements on the width of the section of the arm support under different working conditions are met.

In some embodiments provided herein, the connecting structure includes a connecting fastener 303.

The connecting fastener 303 is rotatably connected to the first web member 301 and the second web member 302, respectively, and the connecting fastener 303 is used for being connected to the second connecting structure 6. That is, the connecting fastener 303 constitutes the connecting structure between the first web member 301 and the second web member 302.

For example, the connecting fastener 303 is hingedly connected to the first and

second web members

301 and 302, respectively. The connecting fastener 303 is provided with two hinge holes 3032, and the two hinge holes 3032 of the connecting fastener 303 are respectively used for being hinged with the first web member 301 and the second web member 302.

Referring to fig. 2 and 3, by providing the connecting fastener 303, in the process of changing the cross section of the truss arm, only the connecting fastener 303 needs to be connected to the second connecting structure 6 or the connecting fastener 303 and the second connecting structure 6 need to be disconnected, and the connection between the first web member 301 and the second web member 302 does not need to be disconnected, so that the simplicity of the operation of changing the cross section of the truss arm is improved.

Optionally, the connection fastener 303 is provided with a connection hole 3031 for connection with the second connection structure 6. The connection hole 3031 is connected to the second connection structure 6 by a pin, so that the connection fastener 303 and the second connection structure 6 can be connected and detached more conveniently.

Further, as shown in fig. 2 and 8, the connection fastener 303 is provided in a rectangular structure, and the number of the connection holes 3031 is provided in two. The two connecting holes 3031 of the connecting fastener 303 are respectively connected with the second connecting structure 6 through pin shafts.

Of course, the connecting fastener 303 is not limited to the above-mentioned structure, and as shown in fig. 3 and 9, for example, the connecting fastener 303 may also be arranged in a triangular structure, and the number of the connecting holes 3031 is also arranged in one. The connection hole 3031 of the connection fastener 303 is connected with the second connection structure 6 by a pin.

Referring to fig. 4-5, in some embodiments provided by the present invention, the number of side assemblies is set to at least two.

At least two side assemblies are arranged in sequence along the width direction of the truss arm.

And any two adjacent side assemblies are connected. So set up, the bearing capacity of truss arm is higher.

Referring to fig. 4, in some embodiments of the present invention, a first chord 1 is disposed opposite a second chord 2 between any two adjacent side assemblies.

And, between any two adjacent side assemblies, the first chord member 1 and the second chord member 2 which are oppositely arranged are connected through a straight web member and a reinforcement rod assembly. Further, the arrangement form and principle of the straight web member and the reinforcement member assembly between the first chord member 1 and the second chord member 2 which are oppositely arranged can be the same as those of the straight web member and the reinforcement member in the side assembly.

With the arrangement, as shown in fig. 4, the distance between two adjacent side assemblies can be adjusted, and the distance between the first chord and the second chord of each side assembly can be adjusted, so that the length and width of the cross section of the truss arm can be adjusted, and the truss arm is more convenient and flexible to use.

Meanwhile, referring to fig. 6, in the truss arm in the wide cross-sectional state, two opposite stiffener assemblies 3 are disposed to cross each other in a space between two adjacent side assemblies. In the truss arm in the narrow cross section state, two first web members 301 facing each other between the two side members are arranged to intersect each other in space, and two second web members 302 facing each other are arranged to intersect each other in space.

Of course, the arrangement form of the adjacent two side assemblies is not limited to the form in the above-described embodiment.

For example, referring to fig. 5, in other embodiments provided by the present invention, between any two adjacent side assemblies, two first chords 1 are disposed opposite to each other, and two second chords 2 are disposed opposite to each other.

And, between any two adjacent side assemblies, between two first chords 1 that set up relatively and between two second chords 2 that set up relatively all be connected through web member and stiffener subassembly. Further, the arrangement form and principle of the straight web member and the reinforcement bar assembly between the two oppositely arranged first chords 1 and the arrangement form and principle of the straight web member and the reinforcement bar assembly between the two oppositely arranged second chords 2 can be the same as those of the straight web member and the reinforcement bar in the side assembly.

With the arrangement, as shown in fig. 5, the distance between two adjacent side assemblies can be adjusted, and the distance between the first chord and the second chord of each side assembly can be adjusted, so that the length and width of the cross section of the truss arm can be adjusted, and the truss arm is more convenient and flexible to use.

Meanwhile, no matter the truss arm is in a wide section state or a narrow section state, two adjacent side assemblies of the truss arm are always arranged in mirror symmetry.

In some embodiments provided herein, the truss arm further comprises a connecting rod (not shown in the figures). Any two adjacent side assemblies are connected by a connecting piece.

Referring to fig. 4, alternatively, when the first chord 1 and the second chord 2 are oppositely arranged between two adjacent side assemblies, the first chord 1 and the second chord 2 are connected through a connecting rod. For example, both ends of the connecting rod are welded to the first chord 1 and the second chord 2, respectively.

Referring to fig. 5, alternatively, when two first chords 1 are oppositely arranged and two second chords 2 are oppositely arranged between two adjacent side assemblies, the two first chords 1 and the two second chords 2 are connected through connecting rods. For example, the connecting rod between the two first chords 1 is welded to the two first chords 1, and the connecting rod between the two second chords 2 is welded to the two second chords 2.

Alternatively, the number of the connecting rods is set to be plural.

The embodiment of the utility model provides an in still provide an operation machinery.

In particular, the work machine comprises a boom arm as described above.

It should be noted that the work machine includes the truss arm and also includes all the advantages of the truss arm, which are not described herein again.

Meanwhile, it should be noted that the working machine of the present invention includes, but is not limited to, a crane. Such as a crawler crane.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A truss arm including a side assembly, the side assembly comprising: the first chord member, the second chord member, at least two groups of straight web members with different lengths and at least two reinforcing rod members;

the reinforcing rod assembly comprises a first web member and a second web member which are rotatably connected with each other;

the first web member is rotatably connected with the first chord member, and the second web member is detachably connected with the second chord member;

2. The truss arm of claim 1 wherein the connection structure comprises a connection fastener;

3. The truss arm of claim 2 wherein the connector fastener is provided with a connector aperture for connection to the second connector structure.

4. The truss arm of claim 1 wherein the number of side assemblies is provided as at least two;

any two adjacent side assemblies are connected.

5. The truss arm of claim 4, wherein between any adjacent two of the side assemblies, the first chord is disposed opposite the second chord, and the oppositely disposed first chord and second chord are connected by the web member and the stiffener assembly.

6. The truss arm of claim 4, wherein between any two adjacent side assemblies, two of the first chords are oppositely disposed, two of the second chords are oppositely disposed, and the oppositely disposed first chords and the oppositely disposed second chords are connected by the web member and the stiffener assembly.

7. The truss arm of claim 4, further comprising a connecting bar by which any adjacent two of the side assemblies are connected.

8. The truss arm of claim 3, wherein the connecting fasteners are arranged in a triangular configuration and the number of connecting holes is arranged as one.

9. The truss arm of claim 3, wherein the connecting fasteners are arranged in a rectangular configuration and the number of connecting holes is two.

10. A work machine comprising a truss arm as defined in any one of claims 1-9.