CN211847043U

CN211847043U - Lifting arm support applied to high-altitude operation engineering machinery

Info

Publication number: CN211847043U
Application number: CN202020291666.8U
Authority: CN
Inventors: 林上弟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2020-11-03
Anticipated expiration: 2030-03-11

Abstract

The utility model discloses a be applied to high altitude construction engineering machine's lift cantilever crane, including first cantilever crane and second cantilever crane, be connected through the connecting piece between first cantilever crane and the second cantilever crane, first recess has been seted up to the bottom of connecting piece, the tail end nestification of first cantilever crane is in first recess, the second recess has been seted up on the top of connecting piece, the head end nestification of second cantilever crane is in the second recess, the mid-mounting of connecting piece has the variable amplitude hydro-cylinder, the base that becomes the amplitude hydro-cylinder has the mounting panel through welded fastening. The utility model discloses a become width of cloth hydro-cylinder and mounting panel welding and link to each other, through bolt fixed connection between mounting panel and the connecting piece for become width of cloth hydro-cylinder installation is simple, simplifies the structural design of cantilever crane greatly, becomes width of cloth hydro-cylinder and connecting piece fixed connection simultaneously, has improved joint strength, avoids the atress too big and fracture, reduces equipment failure rate.

Description

Lifting arm support applied to high-altitude operation engineering machinery

Technical Field

The utility model relates to an engineering machine tool field, concretely relates to be applied to high altitude construction engineering machine's cantilever crane that lifts.

Background

At present, high-altitude operation engineering machinery such as a climbing platform fire truck, an overhead working truck and the like is more and more widely applied in production and life. The high-altitude operation engineering machinery generally has a working platform for carrying people or goods, and the working platform needs to be lifted to a certain height by a lifting arm support and carries out related operations such as conveying, maintenance, emergency rescue and the like.

At present, a luffing cylinder on the existing lifting arm support is hinged with the arm support, so that the structural strength of the joint of a base of the luffing cylinder is reduced, and the luffing cylinder is easy to break due to overlarge stress, thereby causing equipment damage.

Therefore, it is necessary to provide a lifting arm support for an aerial work engineering machine to solve the above problems. The above information disclosed in this background section is only for enhancement of understanding of the background of the disclosure and therefore it may contain information that does not constitute prior art that is already known to a person of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a be applied to high altitude construction engineering machine's lift cantilever crane links to each other with the mounting panel welding through becoming width of cloth hydro-cylinder, through bolt fixed connection between mounting panel and the connecting piece for become width of cloth hydro-cylinder installation simple, simplify the structural design of cantilever crane greatly, become width of cloth hydro-cylinder and connecting piece fixed connection simultaneously, improved joint strength, avoid the atress too big and fracture, reduce equipment failure rate, with the above-mentioned weak point in the solution technology.

In order to achieve the above object, the present invention provides the following technical solutions: a lifting arm support applied to high-altitude operation engineering machinery comprises a first arm support and a second arm support, wherein the first arm support is connected with the second arm support through a connecting piece, a first groove is formed in the bottom end of the connecting piece, the tail end of the first arm support is nested in the first groove, the tail end of the first arm support is hinged and connected with the first groove through a first pin shaft, a second groove is formed in the top end of the connecting piece, the head end of the second arm support is nested in the second groove, the head end of the second arm support is hinged and connected with the second groove through a second pin shaft, an amplitude-variable oil cylinder is mounted in the middle of the connecting piece, a mounting plate is fixedly welded on a base of the amplitude-variable oil cylinder, a fixing block is connected with the telescopic end of the amplitude-variable oil cylinder, a first connecting rod is connected with the lower end of the fixing block, and, the first arm support is provided with a first pin lug plate, the second arm support is provided with a second pin lug plate, one end of the first connecting rod, far away from the fixing block, is connected with the first pin lug plate, and one end of the second connecting rod, far away from the fixing block, is connected with the second pin lug plate.

Preferably, the first arm support is a telescopic arm support, and the second arm support is a telescopic arm support.

Preferably, the mounting plate is fixedly connected with the connecting piece through a bolt.

Preferably, the fixed block is fixedly connected with the telescopic end of the variable amplitude oil cylinder through a bolt.

Preferably, the first pin ear plate is fixedly connected with the first arm support through a bolt, and the second pin ear plate is fixedly connected with the second arm support through a bolt.

Preferably, one end of the first connecting rod is hinged to the fixed block through a third pin shaft, and the other end of the first connecting rod is hinged to the first pin ear plate through a fourth pin shaft.

Preferably, one end of the second connecting rod is hinged to the fixed block through a fifth pin shaft, and the other end of the second connecting rod is hinged to the second pin ear plate through a sixth pin shaft.

In the technical scheme, the utility model provides a technological effect and advantage:

the variable-amplitude oil cylinder is connected with the mounting plate in a welded mode, and the mounting plate is fixedly connected with the connecting piece through the bolt, so that the variable-amplitude oil cylinder is simple to mount, the structural design of the arm support is greatly simplified, meanwhile, the variable-amplitude oil cylinder is fixedly connected with the connecting piece, the connection strength is improved, the phenomenon that the arm support is broken due to overlarge stress is avoided, and the equipment failure rate is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the utility model after being folded;

FIG. 3 is an enlarged view of the point A of FIG. 1 according to the present invention;

fig. 4 is a side view of the connector of the present invention.

Description of reference numerals:

the variable-amplitude oil cylinder comprises a first arm support 1, a second arm support 2, a connecting piece 3, a first groove 4, a first pin 5, a second groove 6, a second pin 7, a variable-amplitude oil cylinder 8, a mounting plate 9, a fixing block 10, a first connecting rod 11, a second connecting rod 12, a first pin ear plate 13, a second pin ear plate 14, a third pin 15, a fourth pin 16, a fifth pin 17 and a sixth pin 18.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more example embodiments. In the following description, numerous specific details are provided to give a thorough understanding of example embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, steps, and so forth. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

The utility model provides a lifting arm support applied to high-altitude operation engineering machinery as shown in figures 1-4, which comprises a first arm support 1 and a second arm support 2, wherein the first arm support 1 is connected with the second arm support 2 through a connecting piece 3, a first groove 4 is arranged at the bottom end of the connecting piece 3, the tail end of the first arm support 1 is nested in the first groove 4, the tail end of the first arm support 1 is hinged with the first groove 4 through a first pin shaft 5, a second groove 6 is arranged at the top end of the connecting piece 3, the head end of the second arm support 2 is nested in the second groove 6, the head end of the second arm support 2 is hinged with the second groove 6 through a second pin shaft 7, an amplitude-variable oil cylinder 8 is arranged in the middle of the connecting piece 3, a mounting plate 9 is fixed on the base of the amplitude-variable oil cylinder 8 through welding, the telescopic end of the amplitude-variable oil cylinder 8 is connected with a fixing block 10, the lower end of the fixed block 10 is connected with a first connecting rod 11, the upper end of the fixed block 10 is connected with a second connecting rod 12, the first arm support 1 is provided with a first pin lug plate 13, the second arm support 2 is provided with a second pin lug plate 14, one end of the first connecting rod 11, far away from the fixed block 10, is connected with the first pin lug plate 13, and one end of the second connecting rod 12, far away from the fixed block 10, is connected with the second pin lug plate 14;

further, in the above technical solution, the first boom 1 is set as a telescopic boom, and the second boom 2 is set as a telescopic boom, which is beneficial to improving the length and lifting height of the boom;

furthermore, in the above technical scheme, the mounting plate 9 and the connecting piece 3 are fixedly connected through bolts, so that the connection is simple and firm;

further, in the technical scheme, the fixed block 10 is fixedly connected with the telescopic end of the amplitude-variable oil cylinder 8 through a bolt, so that the connection is simple and firm;

further, in the above technical solution, the first pin ear plate 13 is fixedly connected with the first arm support 1 through a bolt, and the second pin ear plate 14 is fixedly connected with the second arm support 2 through a bolt, so that the fixing is simple and firm;

further, in the above technical solution, one end of the first connecting rod 11 is hinged to the fixed block 10 through a third pin 15, and the other end of the first connecting rod 11 is hinged to the first pin ear plate 13 through a fourth pin 16, so that the first connecting rod 11 rotates to support the first arm support 1;

further, in the above technical solution, one end of the second connecting rod 12 is hinged to the fixed block 10 through a fifth pin 17, and the other end of the second connecting rod 12 is hinged to the second pin ear plate 14 through a sixth pin 18, so that the second connecting rod 12 rotates to support the second arm support 2;

the implementation mode is specifically as follows: when the amplitude-variable oil cylinder 8 is in an extension state, one end of a first connecting rod 11 and one end of a second connecting rod 12 are pulled to move forwards, the first connecting rod 11 pulls a first arm support 1, the second connecting rod 12 pulls a second arm support 2, so that the first arm support 1 and the second arm support 2 are folded together, the occupied space is reduced, when the amplitude-variable oil cylinder 8 contracts, a fixing block 10 is pulled, the fixing block 10 moves to pull the first connecting rod 11 and the second connecting rod 12, the first connecting rod 11 pushes the first arm support 1, the second connecting rod 12 pushes the second arm support 2, so that the first arm support 1 and the second arm support 2 are unfolded mutually, high-altitude operation is facilitated, the amplitude-variable oil cylinder 8 is welded and connected with a mounting plate 9, the mounting plate 9 is fixedly connected with the connecting piece 3 through bolts, so that the amplitude-variable oil cylinder 8 is simple to mount, the structural design of the arm supports, the lifting arm support is prevented from being broken due to overlarge stress, the failure rate of equipment is reduced, and the implementation mode specifically solves the problems that in the prior art, the luffing cylinder on the existing lifting arm support is hinged with the arm support, the structural strength of the connecting part of the base of the luffing cylinder is reduced, and the equipment is damaged due to the overlarge stress and the breakage easily.

This practical theory of operation:

referring to the attached drawings 1-4 in the specification, when the amplitude variation oil cylinder 8 is in an extension state, one end of a first connecting rod 11 and one end of a second connecting rod 12 are pulled to move forwards, the first connecting rod 11 pulls a first arm support 1, the second connecting rod 12 pulls a second arm support 2, so that the first arm support 1 and the second arm support 2 are folded together, when the amplitude variation oil cylinder 8 is contracted, a fixing block 10 is pulled, the fixing block 10 moves to pull the first connecting rod 11 and the second connecting rod 12, the first connecting rod 11 pushes the first arm support 1, and the second connecting rod 12 pushes the second arm support 2, so that the first arm support 1 and the second arm support 2 are unfolded mutually.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. The utility model provides a be applied to high altitude construction engineering machine's lifting arm frame, includes first cantilever crane (1) and second cantilever crane (2), its characterized in that: the variable-amplitude oil cylinder is characterized in that the first arm support (1) is connected with the second arm support (2) through a connecting piece (3), a first groove (4) is formed in the bottom end of the connecting piece (3), the tail end of the first arm support (1) is nested in the first groove (4), the tail end of the first arm support (1) is hinged to the first groove (4) through a first pin shaft (5), a second groove (6) is formed in the top end of the connecting piece (3), the head end of the second arm support (2) is nested in the second groove (6), the head end of the second arm support (2) is hinged to the second groove (6) through a second pin shaft (7), a variable-amplitude oil cylinder (8) is installed in the middle of the connecting piece (3), a mounting plate (9) is fixedly arranged on a base of the variable-amplitude oil cylinder (8) through welding, and the telescopic end of the variable-amplitude oil cylinder (8) is connected with a fixing block, the lower extreme of fixed block (10) is connected with first connecting rod (11), the upper end of fixed block (10) is connected with second connecting rod (12), be provided with first pin otic placode (13) on first cantilever crane (1), be provided with second pin otic placode (14) on second cantilever crane (2), the one end that fixed block (10) were kept away from in first connecting rod (11) is connected with first pin otic placode (13), the one end that fixed block (10) were kept away from in second connecting rod (12) is connected with second pin otic placode (14).

2. The lifting arm support applied to the high-altitude operation engineering machinery as claimed in claim 1, wherein: the first arm support (1) is set to be a telescopic arm support, and the second arm support (2) is set to be a telescopic arm support.

3. The lifting arm support applied to the high-altitude operation engineering machinery as claimed in claim 1, wherein: the mounting plate (9) is fixedly connected with the connecting piece (3) through bolts.

4. The lifting arm support applied to the high-altitude operation engineering machinery as claimed in claim 1, wherein: the fixed block (10) is fixedly connected with the telescopic end of the variable amplitude oil cylinder (8) through a bolt.

5. The lifting arm support applied to the high-altitude operation engineering machinery as claimed in claim 1, wherein: the first pin ear plate (13) is fixedly connected with the first arm support (1) through a bolt, and the second pin ear plate (14) is fixedly connected with the second arm support (2) through a bolt.

6. The lifting arm support applied to the high-altitude operation engineering machinery as claimed in claim 1, wherein: one end of the first connecting rod (11) is hinged to the fixed block (10) through a third pin shaft (15), and the other end of the first connecting rod (11) is hinged to the first pin lug plate (13) through a fourth pin shaft (16).

7. The lifting arm support applied to the high-altitude operation engineering machinery as claimed in claim 1, wherein: one end of the second connecting rod (12) is hinged to the fixed block (10) through a fifth pin shaft (17), and the other end of the second connecting rod (12) is hinged to the second pin lug plate (14) through a sixth pin shaft (18).