Boom mechanism and working machine

Abstract

The utility model relates to the technical field of operation machinery, and provides an arm support mechanism and operation machinery, the arm support mechanism comprises a pair of first arm supports arranged in parallel, each first arm support comprises a first end and a second end, the first end is provided with a hinge point, and the hinge point is located on the center line of the first arm support; the reducing joint comprises a large end and a small end opposite to the other end, and the second ends of the pair of first arm supports are simultaneously connected with the large end of the reducing joint; one end of the second arm frame is connected with the small end of the reducing joint, and the other opposite end is used for being connected with an arm head; by means of the pair of first arm supports arranged in parallel, the sectional dimension of the arm support mechanism can be effectively increased, and therefore the radial anti-load capacity of the arm support mechanism is improved; the hinge point can optimize stress, so that the stress is more balanced and stable, and the capacity of the arm support mechanism is further improved; when the stress is optimized, the distance between the hinge points on the two first arm frames is increased, so that a larger platform can be adapted, and the whole operation machine can be more suitable for large-tonnage suspended load.

Description

Technical Field

[0001] The utility model relates to the technical field of operating machinery, in particular to an arm mechanism and an operating machinery. Background Art

[0002] At present, with the rapid development of economy, petrochemical and other projects are driven to develop towards large-scale, and the market requirements for the lifting performance of crawler cranes and other lifting equipment are constantly increasing, prompting the lifting equipment to develop towards large tonnage to meet the lifting needs of large-scale projects.

[0003] However, the lifting performance of the lifting equipment is largely affected by the boom mechanism. Due to the limited cross-section of the boom of conventional transport width, it greatly limits the boom capacity of the crawler crane and cannot meet the lifting needs of large tonnage. Utility Model Content

[0004] The utility model provides a boom mechanism and an operating machine, which are used to solve the defect in the prior art that the demand for large tonnage lifting cannot be met due to the limitation of the boom cross section, and the demand for large tonnage lifting is met by improving the boom performance to increase the lifting capacity.

[0005] The utility model provides a boom mechanism, which comprises a first boom, a reducing section and a second boom.

[0006] A pair of the first booms are arranged in parallel, the first booms include a first end and a second end, the first end is provided with a hinge, and the hinge is located on the center line of the first boom; the reducer includes a large end and a small end opposite to the other end, and the second ends of a pair of the first booms are simultaneously connected to the large end of the reducer; one end of the second boom is connected to the small end of the reducer, and the other opposite end is used to connect the boom head.

[0007] According to an arm mechanism provided by the utility model, a tapered section is formed on the first arm, and the tapered section gradually shrinks toward the center line of the first arm in a direction away from the second arm, and an end of the tapered section away from the second arm is formed as the first end.

[0008] According to a boom mechanism provided by the utility model, the first boom includes a lower boom and an intermediate boom;

[0009] One end of the lower arm is connected to the middle arm, and the other opposite end is formed as the first end. One end of the middle arm away from the lower arm is formed as the first end.

[0010] According to a boom mechanism provided by the utility model, the intermediate boom section includes at least one unit boom section.

[0011] According to the utility model, a boom mechanism is provided, which also includes a transverse arm for connecting a pair of the first booms.

[0012] According to a boom mechanism provided by the utility model, the transverse boom is fixedly connected to the ends of a pair of middle booms of the first boom, and the ends of a pair of lower booms of the first boom are fixedly connected to the middle boom.

[0013] According to an arm support mechanism provided by the utility model, the transverse arm is detachably and fixedly connected to the middle arm and / or the lower arm.

[0014] According to a boom mechanism provided by the utility model, the reducer is detachably fixedly connected to the first boom and / or the second boom.

[0015] According to an arm support mechanism provided by the utility model, a pair of the first arms are arranged in parallel.

[0016] The utility model also provides an operating machine, comprising any one of the arm mechanisms described above.

[0017] The operating machine provided by the utility model further includes a slewing platform, a first arm of a pair of the arm mechanisms is connected to the slewing platform through respective hinge points, and an end of the second arm away from the first arm is connected to an arm head.

[0018] The utility model provides a boom mechanism and an operating machine, in which the first boom is connected to the platform through a hinge point at the end, the second boom is connected to the boom head at the other end relative to the first boom, and a pair of first booms arranged in parallel are connected to the second boom through a reducing section to achieve diameter change from the first boom to the second boom; the pair of first booms arranged in parallel can effectively increase the cross-sectional size of the boom mechanism, thereby improving the radial load resistance of the boom mechanism, so that the boom mechanism can be suitable for lifting operations with a larger tonnage; the hinge point located on the center line of the first boom can make the force more balanced and stable, and the capacity of the boom mechanism can be further improved by optimizing the force; in addition, while optimizing the force, the distance between the hinge points on the two first booms is increased, so that the boom mechanism can adapt to a larger platform, thereby making the operating machine as a whole more suitable for lifting operations with a large tonnage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is one of the structural schematic diagrams of the arm support mechanism provided in the embodiment of the utility model.

[0021] Figure 2 This is the second structural schematic diagram of the arm support mechanism provided in the embodiment of the utility model.

[0022] Figure 3 It is a structural schematic diagram of the coordination of various components in the arm support mechanism provided by an embodiment of the utility model.

[0023] Reference numerals:

[0024] 10. First boom; 100. Tapered section; 101. Lower boom; 102. Intermediate boom; 11. Hinge point; 12. Transverse boom; 20. Reducer; 30. Second boom. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In order to facilitate the understanding of the boom mechanism and operating machinery provided by the utility model, the application background thereof is first explained. With the rapid development of the economy, petrochemical and other projects are driven towards large-scale development, and the market demand for the lifting performance of lifting equipment such as crawler cranes is also getting higher and higher. In the related technology, the lifting performance of the lifting equipment is greatly affected by the boom mechanism. Due to the limited cross-section of the boom of the conventional transport width, the boom capacity of the crawler crane is greatly restricted, and it is difficult to meet the lifting needs of large tonnage.

[0027] Based on the above problems, the utility model provides a boom mechanism and an operating machine, which improve the lifting capacity by improving the boom performance to meet the lifting needs of large tonnage.

[0028] Combine the following Figure 1-Figure 3 The utility model describes the arm support mechanism and the operating machine.

[0029] Reference Figure 1 and Figure 2A boom mechanism comprises a first boom 10, a reducer 20 and a second boom 30; wherein, a pair of first booms 10 are arranged in parallel, the first boom 10 comprises a first end and a second end, a hinge 11 is arranged on the first end thereof for connecting with a platform, and the hinge 11 is located on the center line of the first boom 10; the reducer 20 comprises a large end and a small end opposite to the large end, and the second ends of the two first booms 10 are connected to the large end of the reducer 20 at the same time; one end of the second boom 30 is connected to the small end of the reducer 20, and the other end opposite thereto is used for connecting with the boom head.

[0030] In actual applications, the first boom 10 is connected to the platform through the hinge 11 at the end, and the second boom 30 is connected to the boom head at the other end relative to the first boom 10. A pair of first booms 10 arranged in parallel are connected to the second boom 30 through a reducer 20 to achieve diameter change from the first boom 10 to the second boom 30; through the pair of first booms 10 arranged in parallel, the cross-sectional size of the boom mechanism can be effectively increased, thereby improving the radial load resistance of the boom mechanism, so that the boom mechanism can be suitable for larger tonnage lifting operations; the hinge 11 located on the center line of the first boom 10 can make the force more balanced and stable, and the capacity of the boom mechanism can be further improved by optimizing the force. In addition, while optimizing the force, the distance between the hinges 11 on the two first booms 10 is increased, so that the boom mechanism can adapt to a larger platform, so that the overall operating machinery can be more suitable for large-tonnage lifting operations.

[0031] In a specific embodiment of the utility model, a tapered section 100 is formed on the first boom 10, and the tapered section 100 gradually shrinks toward the center line of the first boom 10 in the direction away from the second boom 30, and the end of the tapered section 100 away from the second boom 30 is formed as the first end of the first boom 10. In this way, the distance between the two first booms 10 near the hinge 11 can be increased by the tapered section 100, thereby providing a larger installation space for the connection between the boom mechanism and the platform, which is beneficial to the connection between the first boom 10 and the platform. At the same time, the tapered section 100 can also give way to effectively reduce the interference between the first boom 10 and the platform during operation. In addition, the tapered section 100 can further optimize the force on the hinge 11, realize a more balanced and stable load transfer, and further improve the working performance of the boom mechanism.

[0032] The first boom 10 can be an integral structure or a segmented structure, a linear configuration or other configurations, and can be flexibly designed according to actual lifting requirements and application scenarios. In this embodiment, the first boom 10 is a linear configuration and a segmented structure, and two first booms 10 are arranged in parallel.

[0033] In a specific embodiment of the present invention, referring to Figure 2 and Figure 3 The first boom 10 includes a lower boom 101 and an intermediate boom 102; wherein, one end of the lower boom 101 is connected to the intermediate boom 102, and the other end opposite thereto is formed as the above-mentioned first end, which is used to connect the hinge 11, and one end of the intermediate boom 102 away from the lower boom 101 is formed as the above-mentioned second end. The intermediate boom 102 includes at least one unit boom section. By setting the lower boom 101 and the intermediate boom 102, the boom mechanism can be easily disassembled, transported and transferred, and the boom mechanism can be reassembled and adjusted according to actual use requirements, which is conducive to improving the convenience and flexibility of the application of the boom mechanism.

[0034] In order to further improve the load-bearing capacity of the boom mechanism, the boom mechanism further includes a transverse arm 12 for connecting the two first booms 10 .

[0035] According to different needs and working scenarios, there are multiple optional connection methods for the cross-section arm 12 and the first boom 10: for example, the two ends of the cross-section arm 12 can be fixedly connected to the middle section arms 102 on the two first booms 10; the two ends of the cross-section arm 12 can also be fixedly connected to the lower section arms 101 on the two first booms 10; the end of the cross-section arm 12 can also be connected to the joint of the lower section arm 101 and the middle section arm 102 to achieve the connection of the cross-section arm 12, the middle section arm 102 and the lower section arm 101 on the two first booms 10. However, due to the limited spacing between the two first booms 10, the above connection method is inconvenient to connect the cross-section arm 12 due to space limitations.

[0036] Based on the above, in a specific embodiment of the utility model, one side of the cross-section arm 12 is fixedly connected to the end of the middle section arm 102 of the two first booms 10 at the same time, and the end of the lower section arm 101 of the two first booms 10 is fixedly connected to the other side of the cross-section arm 12 at the same time. With such a configuration, when assembling the boom mechanism, the middle section arm 102 on the two first booms 10 is first connected to the cross-section arm 12, and then the lower section arm 101 on the two first booms 10 is connected to the cross-section arm 12. When the middle section arm 102 and the lower section arm 101 are assembled, the connection and fixation between the middle section arm 102, the lower section arm 101 and the cross-section arm 12 on the two first booms 10 is realized, thereby improving the stability of the boom mechanism and the convenience of installation.

[0037] Based on different needs and application scenarios, the cross-section arm 12 is detachably fixedly connected to at least one of the middle section arm 102 and the lower section arm 101. For example, the cross-section arm 12 can be non-detachably fixed to the lower section arm 101, and detachably fixedly connected to the middle section arm 102; or the cross-section arm 12 can be detachably fixed to the lower section arm 101, and non-detachably fixed to the middle section arm 102. Of course, when the middle section arm 102 includes multiple unit arm sections, the cross-section arm 12 is connected to the unit arm section; or the cross-section arm 12 is detachably fixedly connected to both the middle section arm 102 and the lower section arm 101, so that the disassembly, transportation and transfer of the boom mechanism are more flexible and convenient. In this embodiment, in order to ensure the flexibility of disassembly, transportation and transfer of the boom mechanism, the cross-section arm 12 is detachably fixedly connected to both the middle section arm 102 and the lower section arm 101.

[0038] The specific connection method between the cross-section arm 12, the middle section arm 102 and the lower section arm 101 can be flexibly selected according to actual needs. For example, the two connected parts can be connected by connecting components such as pins or bolts. No matter what connection method is used, as long as the detachable connection between the cross-section arm 12, the middle section arm 102 and the lower section arm 101 can be achieved, no specific restrictions are made in the embodiments of the utility model.

[0039] The second arm support 30 and the connection method with the first arm support 10 will be described in detail below with reference to the accompanying drawings.

[0040] Reference Figure 2 and Figure 3 The second boom 30 is a single-arm section structure of a linear configuration, one end of which is fixedly connected to two parallel first booms 10 through a reducer 20, and the other opposite end is used for connecting the boom head.

[0041] The reducer 20 has a trapezoidal structure as a whole, and its upper and lower bases are two parallel planes. The area of ​​the lower base is larger than that of the upper base, so that the lower base forms the large end of the reducer 20 and the upper base forms the small end of the reducer 20; the middle section arms 102 on the two first booms 10 are connected to the large end of the reducer 20 at the same time, and the end of the second boom 30 is connected to the small end of the reducer 20, so that the diameter change from the first boom 10 to the second boom 30 is achieved.

[0042] Based on different needs and application scenarios, the reducer 20 is detachably fixedly connected to at least one of the intermediate boom 102 and the second boom 30. For example, the reducer 20 can be fixedly connected to the second boom 30 in a non-detachable manner, and detachably fixedly connected to the intermediate boom 102; or the reducer 20 can be fixedly connected to the second boom 30 in a detachable manner, and fixedly connected to the intermediate boom 102 in a non-detachable manner. Of course, when the intermediate boom 102 includes multiple unit boom sections, the reducer 20 is connected to the unit boom section; or the reducer 20 is fixedly connected to both the second boom 30 and the intermediate boom 102 in a detachable manner, so that the disassembly, transportation and transfer of the boom mechanism are more flexible and convenient. In this embodiment, the reducer 20 is fixedly connected to both the intermediate boom 102 and the second boom 30 in a detachable manner.

[0043] The specific connection method between the reducer 20 and the intermediate arm 102 and the second boom 30 can be flexibly selected according to actual needs, for example, by using connecting components such as pins or bolts. No matter which connection method is used, as long as the detachable connection between the reducer 20 and the intermediate arm 102 and the second boom 30 can be achieved, no specific restrictions are made in the embodiments of the utility model.

[0044] It should be noted that the technical features in the embodiments of the present invention can be combined without conflict.

[0045] The working machine provided by the utility model is described below. The working machine described below and the arm mechanism described above can be referred to each other.

[0046] A working machine comprises the above-mentioned arm mechanism.

[0047] Specifically, the operating machine further includes a slewing platform, a first boom 10 of a pair of boom mechanisms is connected to the slewing platform via respective hinge points 11 , and an end of the second boom 30 away from the first boom 10 is connected to a boom head.

[0048] It should be noted that the above-mentioned operating machinery includes but is not limited to crawler cranes.

[0049] The novelty of the utility model is that the first boom 10 is connected to the platform through a hinge 11 at the end, the second boom 30 is connected to the boom head at the other end relative to the first boom 10, and a pair of first booms 10 arranged in parallel are connected to the second boom 30 through a reducer 20 to achieve diameter change from the first boom 10 to the second boom 30; through a pair of first booms 10 arranged in parallel, the cross-sectional size of the boom mechanism can be effectively increased, thereby improving the radial load resistance of the boom mechanism, so that the boom mechanism can be suitable for larger tonnage lifting operations; the hinge 11 located on the center line of the first boom 10 can make the force more balanced and stable, and the capacity of the boom mechanism can be further improved by optimizing the force. In addition, while optimizing the force, the distance between the hinges 11 on the two first booms 10 is increased, so that the boom mechanism can adapt to a larger platform, so that the overall operating machinery can be more suitable for large-tonnage lifting operations.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A boom mechanism, characterized in that: include: A pair of first booms (10) are arranged in parallel, wherein the first booms (10) comprise a first end and a second end, the first end is provided with a hinge point (11), and the hinge point (11) is located on the center line of the first boom (10); A reducer (20) comprising a large end and a small end opposite to the other end, and the second ends of a pair of the first arms (10) are simultaneously connected to the large end of the reducer (20); The second boom (30) has one end connected to the small end of the reducer (20), and the other end opposite thereto is used for connecting to the boom head.

2. The arm mechanism according to claim 1, characterized in that: A tapered section (100) is formed on the first arm (10), and the tapered section (100) gradually shrinks toward the center line of the first arm (10) in a direction away from the second arm (30), and an end of the tapered section (100) away from the second arm (30) is formed as the first end.

3. The arm support mechanism according to claim 1 or 2, characterized in that: The first boom (10) comprises a lower boom (101) and an intermediate boom (102); One end of the lower boom (101) is connected to the middle boom (102), and the other opposite end forms the first end, and one end of the middle boom (102) away from the lower boom (101) forms the first end.

4. The arm support mechanism according to claim 3, characterized in that: The intermediate boom section (102) includes at least one unit boom section.

5. The arm mechanism according to claim 3, characterized in that: It also includes a cross-section arm (12) for connecting a pair of the first arm frames (10).

6. The arm support mechanism according to claim 5, characterized in that: The transverse boom (12) is simultaneously fixedly connected to the ends of a pair of intermediate booms (102) of the first boom frames (10), and the ends of a pair of lower booms (101) of the first boom frames (10) are simultaneously fixedly connected to the intermediate booms (102).

7. The arm support mechanism according to claim 6, characterized in that: The transverse arm (12) is detachably fixedly connected to the middle arm (102) and / or the lower arm (101).

8. The arm support mechanism according to claim 1, characterized in that: The reducing joint (20) is detachably fixedly connected to the first arm (10) and / or the second arm (30).

9. A working machine, characterized in that: It comprises the arm support mechanism as described in any one of claims 1 to 8.

10. The working machine according to claim 9, characterized in that: It also comprises a slewing platform, wherein a first arm (10) of a pair of the arm mechanisms is connected to the slewing platform via respective hinge points (11), and an end of the second arm (30) away from the first arm (10) is connected to an arm head.

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