CN216662341U

CN216662341U - A-shaped frame structure and operation machine

Info

Publication number: CN216662341U
Application number: CN202122811200.3U
Authority: CN
Inventors: 包世阳; 李岩岩
Original assignee: Sany America Inc
Current assignee: Sany America Inc
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-06-03
Anticipated expiration: 2031-11-16

Abstract

The utility model relates to the field of engineering machinery, and provides an A-shaped frame structure and an operation machine. The pair of front support rods are distributed at intervals along the width direction of the front support frame and extend along the length direction of the front support frame. Each cross beam is connected between a pair of front support rods and is distributed at intervals along the length direction of the front support rods. The front stay bar and the cross beam are formed by any one of I-shaped steel, angle steel, H-shaped steel and channel steel. So set up, preceding vaulting pole and crossbeam are formed by arbitrary one kind processing in I-steel, angle steel, H shaped steel, channel-section steel, and under equal lifting surface area, the atress performance of section bars such as I-steel is better, and manufacturing process is also simple relatively, and the welding area is less relatively. And compare in rectangular pipe, square pipe, the utilization ratio of section bars such as I-steel is higher, and manufacturing cost is lower to it is lower to have solved among the prior art A type frame part structural performance, and the cutting welding process is complicated, makes the higher problem of cost.

Description

A-shaped frame structure and operation machine

Technical Field

The utility model relates to the technical field of engineering machinery, in particular to an A-shaped frame structure and an operation machine.

Background

The A-shaped frame is arranged on a rotary table of the crawler crane and is mainly used for supporting the amplitude-variable steel wire rope of the crawler crane so as to provide supporting force when the crane works and the arm support bears. The A-shaped frame is stressed greatly under the working conditions of dynamic compaction, hoisting and the like, and has high requirements on the hardness and strength of parts.

The existing A-shaped frame is composed of rectangular pipes, square pipes and plate welding parts. However, the bending strength of rectangular and square tubes is relatively low at the same cross-sectional area. And the rectangular pipe and the square pipe assembly end needs to be processed with intersecting lines, so that the requirements on the cutting and welding process are high, and the difficulty is high. In addition, in the production process, the rectangular pipe and the square pipe have relatively low material utilization rate and high manufacturing cost.

Therefore, how to solve the problems of low structural performance, complex cutting and welding process and high manufacturing cost of the A-type frame part in the prior art becomes an important technical problem to be solved by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an A-shaped frame structure and an operating machine, which are used for solving the problems of low structural performance, complex cutting and welding process and high manufacturing cost of an A-shaped frame part in the prior art.

The utility model provides an A-shaped frame structure, which comprises a front supporting frame, wherein the front supporting frame comprises a pair of front supporting rods and at least one cross beam,

the front support rods are distributed along the width direction of the front support frame at intervals and extend along the length direction of the front support frame, the cross beams are connected between the front support rods and distributed along the length direction of the front support frame at intervals, and the front support rods and the cross beams are formed by any one of I-shaped steel, angle steel, H-shaped steel and channel steel.

The A-shaped frame structure provided by the utility model further comprises at least two crawling ladders, the crawling ladders are connected between the two cross beams, and the crawling ladders are formed by any one of I-steel, angle steel, H-shaped steel and channel steel.

The A-shaped frame structure further comprises a pulley assembly and a pair of first connecting seats, wherein the pulley assembly is installed between the pair of first connecting seats, and the first connecting seats are arranged at one end of the front support rod.

According to the A-shaped frame structure provided by the utility model, the A-shaped frame structure further comprises a rope blocking rod, the rope blocking rod is arranged on the front supporting frame, and a gap for a steel wire rope to pass through is formed between the rope blocking rod and the pulley assembly.

According to the A-shaped frame structure provided by the utility model, the A-shaped frame structure further comprises a pair of rear pull rods, and the rear pull rods are hinged with the front supporting frame.

The A-shaped frame structure further comprises a pair of second connecting seats, and the second connecting seats are arranged at the other end of the front supporting rod and used for connecting the rotary table.

According to the A-shaped frame structure provided by the utility model, the cross beam is connected with the front support rod in a welding mode, and/or the ladder stand is connected with the cross beam in a welding mode.

According to the A-shaped frame structure provided by the utility model, the second connecting seat is hinged with the rotary table.

According to the A-shaped frame structure provided by the utility model, the front support rod is connected with the rotary table at an acute angle.

The utility model also provides a working machine, which comprises a rotary table and an A-shaped frame structure arranged on the rotary table, wherein the A-shaped frame structure is arranged into the A-shaped frame structure according to any one of the above items.

The utility model provides an A-shaped frame structure which comprises a front support frame, wherein the front support frame comprises a pair of front supporting rods and at least one cross beam. The pair of front support rods are distributed at intervals along the width direction of the front support frame and extend along the length direction of the front support frame. Each cross beam is connected between a pair of front support rods and is distributed at intervals along the length direction of the front support rods. The front stay bar and the cross beam are formed by any one of I-shaped steel, angle steel, H-shaped steel and channel steel. So set up, preceding vaulting pole and crossbeam are formed by arbitrary one kind processing in I-steel, angle steel, H shaped steel, channel-section steel, and under equal lifting surface area, the atress performance of section bars such as I-steel is better, and manufacturing process is also simple relatively, and the welding area is less relatively. And compared with rectangular pipes and square pipes, the utilization rate of sectional materials such as I-shaped steel can reach more than 90%, and the manufacturing cost is low, so that the problems that the structural performance of an A-shaped frame part is low, the cutting and welding process is complex, and the manufacturing cost is high in the prior art are solved.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be 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 it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a perspective view of one of the A-frame configurations provided by the present invention;

FIG. 2 is a second perspective view of the A-frame structure provided by the present invention;

FIG. 3 is a partial schematic view of a front brace provided by the present invention;

FIG. 4 is a partial schematic view of a ladder provided by the present invention;

FIG. 5 is a partial schematic view of the front brace provided by the present invention attached to a turntable;

reference numerals:

1: a front stay bar; 2: a cross beam; 3: climbing a ladder;

4: a sheave assembly; 5: a first connecting seat; 6: a rope blocking rod;

7: a rear pull rod; 8: a second connecting seat; 9: a turntable;

10: a longitudinal support bar; 11: a transverse connecting rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious 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 embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and not for purposes of special definition.

The a-frame structure of the present invention will be described with reference to fig. 1 to 5.

As shown in fig. 1 and 2, the embodiment of the present invention provides an a-frame structure including a front bracket including a pair of front stays 1 and at least one cross member 2. Specifically, the pair of front stays 1 are spaced apart in the width direction of the front stay and extend in the length direction of the front stay. Each cross beam 2 is connected between a pair of front support rods 1 and is distributed at intervals along the length direction of the front support rods. Thereby being connected into a whole to form the front support frame with stable structure. Wherein, the front stay bar 1 and the cross beam 2 are formed by any one of I-shaped steel, angle steel, H-shaped steel and channel steel. For example, as shown in fig. 2, the front stay bar 1 and the cross beam 2 are both made of i-steel. In addition, in order to ensure the structural strength of the front support frame, the specific number of the cross beams 2 can be determined according to the actual use requirement. It should be noted that, for the placing position of the a-frame structure shown in fig. 1, the vertical direction in the drawing is the length direction of the front supporting frame, and the horizontal direction in the drawing is the width direction of the front supporting frame.

So set up, preceding vaulting pole 1 and crossbeam 2 can be formed by any one processing in I-steel, angle steel, H shaped steel, the channel-section steel. Under the same stress area, the bending strength of the sectional materials such as the I-shaped steel is higher than that of the pipe fitting, the stress performance is better, the processing and manufacturing process is relatively simple, and the welding area is relatively small. Compared with a rectangular pipe and a square pipe, the utilization rate of sectional materials such as I-shaped steel can reach more than 90%, the material utilization rate is improved, and the manufacturing cost is reduced, so that the problems that the structural performance of an A-shaped frame part is low, the cutting and welding process is complex and the manufacturing cost is high in the prior art are solved.

In the embodiment of the utility model, the A-shaped frame structure also comprises the ladder stand 3, so that workers can conveniently ascend for operation, inspection, maintenance and the like. Specifically, the number of the cross beams 2 is at least two, and the ladder stand 3 is connected between the two cross beams 2 and arranged along the length direction of the front supporting frame. The crawling ladder 3 is formed by any one of I-steel, angle steel, H-shaped steel and channel steel. For example, there are two cross members 2, and the ladder stand 3 is connected between the two cross members 2. As shown in fig. 4, the ladder stand 3 includes a pair of longitudinal support rods 10 and a plurality of transverse connecting rods 11, wherein both ends of each transverse connecting rod 11 are respectively connected to the pair of longitudinal support rods 10, and both ends of the pair of longitudinal support rods 10 are respectively connected to the two cross beams 2. Wherein, each longitudinal support bar 10 and each transverse connecting bar 11 are processed by angle steel. It should be noted that, regarding the arrangement position of the a-frame structure shown in fig. 1, the vertical direction in the drawing is the pointed longitudinal direction, and the horizontal direction in the drawing is the pointed transverse direction.

Set up like this, cat ladder 3 also adopts arbitrary one kind processing in I-steel, angle steel, H shaped steel, the channel-section steel to constitute, and its structural strength is compared in the pipe fitting better, and welding area also is less than the pipe fitting, also comparatively simple at assembly end processing intersecting line. And the utilization rate of the sectional materials such as the angle steel and the like in the engineering manufacturing industry is higher, the material utilization rate can be improved, and the cost is saved.

In the embodiment of the present invention, the a-frame structure further includes a pulley assembly 4 and a pair of first connecting seats 5. Specifically, as shown in fig. 3, the first connecting seat 5 is provided at one end of the front stay 1, i.e., at the upper end of the front stay 1, and can be welded to the front stay 1. The pulley assembly 4 is installed between a pair of first connecting seats 5, two ends of a connecting shaft of the pulley assembly are respectively fixedly connected with the pair of first connecting seats 5, and the pulley is rotatably installed on the connecting shaft. Wherein, the number of the pulleys can be determined according to the actual use requirement. By the design, the pulley component 4 can be arranged on the front support frame, so that the steel wire rope of the hoisting mechanism is guided. In the arrangement position of the a-frame structure shown in fig. 1, the vertical direction in the figure is the vertical direction.

In the embodiment of the utility model, the A-shaped frame structure further comprises a rope blocking rod 6. As shown in fig. 1, the rope blocking lever 6 is disposed on the first coupling seat 5, and both ends thereof are rotatably coupled to a pair of the first coupling seats 5, respectively. Optionally, the first connecting seat 5 is provided with a first fitting hole to be fitted with the rope blocking lever 6. The rope blocking rod 6 penetrates through the first assembling hole, and is inserted into the rope blocking rod 6 along the radial direction of the first limiting part, so that the rope blocking rod 6 is prevented from moving along the axial direction of the first limiting part and is separated from the first connecting seat 5, and the rope blocking rod 6 is guaranteed to work reliably. And, be equipped with the clearance that supplies wire rope to pass through between fender rope pole 6 and loose pulley assembly 4 to guarantee loose pulley assembly 4 can go out the rope stably, smoothly.

In the embodiment of the utility model, the A-shaped frame structure further comprises a pair of rear pull rods 7, and the rear pull rods 7 are hinged with the front supporting frame. Specifically, the rear pull rod 7 is hinged to the first connecting seat 5, and the first connecting seat 5 is provided with a second assembling hole for connecting the rear pull rod 7. The rear pull rod 7 is correspondingly provided with a third assembly hole, the connecting pin shaft penetrates through the second assembly hole and the third assembly hole, a second limiting part is radially inserted into the end part of the connecting pin shaft along the end part of the connecting pin shaft, and the rear pull rod 7 is reliably connected with the first connecting seat 5.

In the embodiment of the present invention, the a-frame structure further includes a pair of second connecting seats 8, and the second connecting seats 8 are disposed at the other end of the front stay bar 1. Specifically, the second connecting seat 8 is located at the lower end of the front stay bar 1, can be welded with the front stay bar 1, and is used for being connected with the rotary table 9, so that the installation is convenient.

In the embodiment of the utility model, the cross beam 2 is connected with the front supporting rod 1 in a welding mode, and/or the ladder stand 3 is connected with the cross beam 2 in a welding mode. Particularly, welding modes are adopted between the cross beam 2 and the front support rod 1 and between the crawling ladder 3 and the cross beam 2, so that connection is firmer, the overall structure is stable, and the A-shaped frame structure can effectively and reliably provide supporting force when the crane works and the arm support bears.

In the embodiment of the present invention, the second connecting seat 8 is hinged to the rotary table 9. Specifically, the second connecting seat 8 is provided with a fourth fitting hole for mounting a pin shaft, so as to be rotatably connected with the turntable 9 through the cartridge pin shaft.

In the embodiment of the utility model, the front support rod 1 is connected with the rotary table 9 at an acute angle. As shown in fig. 5, a certain included angle a is formed between the front stay bar 1 and the plane of the turntable 9, and the included angle a is an acute angle, so that the front stay bar is connected with the plane of the turntable 9 at an acute angle.

The structure of the a-frame of the present invention will be described specifically with reference to the above embodiments. The embodiment of the utility model provides an A-shaped frame structure which comprises a front supporting frame, a ladder stand 3, a rear pull rod 7, a pulley assembly 4, a first connecting seat 5, a second connecting seat 8 and a rope blocking rod 6. Specifically, the upper end of the front support frame is hinged with the upper end of the rear pull rod 7 through a pin shaft, and the lower end of the front support frame is hinged with the rotary table 9 and is connected with the plane of the rotary table 9 in an acute angle. The lower end of the rear pull rod 7 is hinged with the rotary table 9 and is approximately vertical to the plane of the rotary table 9. The front support frame comprises a pair of front support rods 1 and at least two cross beams 2, wherein the pair of front support rods 1 are distributed at intervals along the width direction of the front support frame and extend along the length direction of the front support frame. Each cross beam 2 is connected between a pair of front support rods 1 and is distributed at intervals along the length direction of the front support rods. Thereby being connected into a whole to form the front support frame with stable structure. First connecting seat 5 sets up in the upper end of preceding vaulting pole 1 to weld mutually with preceding vaulting pole 1, back pull rod 7 is articulated mutually through the round pin axle with first connecting seat 5. The second connecting seat 8 is arranged at the lower end of the front support rod 1, welded with the front support rod 1 and hinged with the rotary table 9. The ladder stand 3 is connected between the two cross beams 2 and is arranged along the length direction of the front support frame. Crossbeam 2 and preceding vaulting pole 1 welded connection, cat ladder 3 and crossbeam 2 welded connection. Pulley block 4 and fender rope pole 6 are installed between a pair of first connecting seat 5, keep off rope pole 6 and first connecting seat 5 rotatable coupling. And a gap for a steel wire rope to pass through is arranged between the rope blocking rod 6 and the peripheral surface of the pulley, so that the pulley assembly 4 can be ensured to stably and smoothly go out.

The front stay bar 1, the cross beam 2 and the ladder stand 3 are all formed by processing any one of I-steel, angle steel, H-shaped steel and channel steel. For example, the front stay bar 1 and the cross beam 2 are processed by I-shaped steel, and the ladder stand 3 is processed by angle steel. Therefore, the whole A-shaped frame structure main body is processed by adopting sectional materials, when the front support rod 1 and the cross beam 2 as well as the cross beam 2 and the ladder stand 3 are processed and combined, the welding area is relatively small, the material utilization rate can be greatly improved, and the manufacturing process complexity and the processing cost are reduced.

Set up like this, arbitrary section bar processing preparation in the I-steel, angle steel, H shaped steel, the channel-section steel is all adopted to preceding vaulting pole 1, crossbeam 2 and cat ladder 3, and under equal lifting surface area, the bending strength of section bars such as I-steel is higher than the pipe fitting, and the atress performance is better, and manufacturing process is also simple relatively, and weld area is less relatively, also comparatively simply at assembly end processing intersecting line. Compared with a rectangular pipe and a square pipe, the utilization rate of sectional materials such as I-shaped steel can reach more than 90%, the material utilization rate is improved, and the manufacturing cost is reduced, so that the problems that the structural performance of an A-shaped frame part is low, the cutting and welding process is complex and the manufacturing cost is high in the prior art are solved.

The following description is of a work machine according to the present disclosure, and reference may be made to the work machine described below and the a-frame structure described above in correspondence therewith.

The embodiment of the utility model also provides the working machine, and particularly relates to a crawler crane and the like. The working machine comprises a turret 9 and an a-frame structure provided on the turret 9, which a-frame structure is provided as in the embodiments described above. So set up, preceding vaulting pole 1 and crossbeam 2 are formed by arbitrary one kind processing in I-steel, angle steel, H shaped steel, the channel-section steel, and under equal lifting surface area, the atress performance of section bars such as I-steel is better, and manufacturing process is also simple relatively, and the welding area is less relatively. Compared with a rectangular pipe and a square pipe, the utilization rate of sectional materials such as I-shaped steel can reach more than 90%, the material utilization rate is improved, and the manufacturing cost is low, so that the problems that the structural performance of an A-shaped frame part is low, the cutting and welding process is complex, and the manufacturing cost is high in the prior art are solved. The derivation process of the beneficial effect is substantially similar to the derivation process of the beneficial effect of the a-frame structure, and therefore, the description thereof is omitted.

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

Claims

1. An A-shaped frame structure is characterized by comprising a front support frame, wherein the front support frame comprises a pair of front support rods and at least one cross beam,

the pair of front supporting rods are distributed along the width direction of the front supporting frame at intervals and extend along the length direction of the front supporting frame, the cross beam is connected between the pair of front supporting rods and distributed along the length direction of the front supporting frame at intervals, and the front supporting rods and the cross beam are formed by any one of I-shaped steel, angle steel, H-shaped steel and channel steel.

2. An a-frame structure according to claim 1, further comprising at least two transverse beams, wherein the ladder is connected between the two transverse beams, and the ladder is formed from any one of i-steel, angle steel, H-steel, and channel steel.

3. An a-frame structure according to claim 1, further comprising a pulley assembly mounted between a pair of said first connection seats and a pair of first connection seats provided at one end of said front stay.

4. An A-frame structure according to claim 3, further comprising a rope blocking rod, wherein the rope blocking rod is arranged on the first connecting seat, and a gap for a steel wire rope to pass through is arranged between the rope blocking rod and the pulley assembly.

5. A frame structure according to claim 1, further comprising a pair of rear tie rods, said rear tie rods being hingedly connected to said front brackets.

6. A jig structure according to claim 3 further comprising a pair of second connecting seats provided at the other end of said front stay for connection to a turntable.

7. An a-frame structure according to claim 2, wherein the cross beam is welded to the front stay and/or the ladder stand is welded to the cross beam.

8. A jig structure according to claim 6 wherein said second connecting section is hinged to said turntable.

9. An a-frame structure according to claim 6, wherein the front brace is connected to the turntable at an acute angle.

10. A working machine comprising a turntable and an a-frame structure arranged on said turntable, characterized in that said a-frame structure is arranged as an a-frame structure according to any of claims 1-9.