Connecting structure for working machine and working machine

Abstract

The utility model relates to the technical field of operating machinery, and provides a connecting structure for operating machinery and the operating machinery, the connecting structure comprises a mounting rack, a first connecting assembly and a second connecting assembly, the mounting rack is connected with a first machinery main body, and the first connecting assembly comprises two first connecting lug plates; the two first connecting lug plates are mounted on the mounting frame at intervals, the second connecting assembly comprises two second connecting lug plates, and the two second connecting lug plates are mounted on the second mechanical body at intervals; wherein the two first connecting lug plates are fixedly connected with the two second connecting lug plates through the connecting units so as to limit the relative positions of the first mechanical main body and the second mechanical main body, the connecting stress position and the force transmission path are increased, stress is dispersed between the two first connecting lug plates and the two second connecting lug plates, and therefore the stress is dispersed between the two first connecting lug plates and the two second connecting lug plates. Local stress and stress are reduced, the stress amplitude is reduced, the fatigue life is prolonged, the operation cost is reduced, and the use experience of customers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of operating machinery, in particular to a connection structure for an operating machinery and the operating machinery. Background Art

[0002] In the related technology, the connection structure between the crane and the pipe rolling machine is a very important connection unit in the pipe rolling operation. The connection structure fixes the pipe rolling machine to the crane base. During the pipe rolling operation, the connection structure is frequently acted on by the lateral force of the pipe rolling machine, with low local strength and large stress amplitude. Fatigue damage often occurs, resulting in interruption of the pipe rolling operation, increasing operation costs and affecting customer experience. Utility Model Content

[0003] The utility model provides a connection structure for an operating machine, which is used to solve the problems in the related art that the local strength of the connection structure is low, the stress amplitude is large, fatigue damage often occurs, the pipe rolling operation is interrupted, the operation cost is increased, and the customer experience is affected.

[0004] The utility model provides a connection structure for an operating machine, comprising:

[0005] A mounting frame connected to the first mechanical body;

[0006] A first connecting assembly, the first connecting assembly comprising two first connecting ear plates, the two first connecting ear plates being installed on the mounting frame at intervals;

[0007] A second connecting assembly, the second connecting assembly comprising two second connecting ear plates, the two second connecting ear plates are spaced apart and mounted on the second mechanical body;

[0008] The two first connecting ear plates are fixedly connected to the two second connecting ear plates through a connecting unit to limit the relative position of the first mechanical body and the second mechanical body.

[0009] According to the connection structure for a working machine provided by the utility model, the two second connection ear plates are inserted between the two first connection ear plates, and the outer wall surface of the second connection ear plate is abutted and matched with the inner wall surface of the first connection ear plate;

[0010] Wherein, the connecting unit is a connecting pin, and the connecting pin is passed through the two first connecting ear plates and the two second connecting ear plates.

[0011] According to a connection structure for an operating machine provided by the utility model, the first connection assembly and the second connection assembly are both in two groups, the two groups of the first connection assembly are installed on the mounting frame at intervals, and the two groups of the second connection assembly are matched with the two groups of the first connection assembly in a one-to-one correspondence.

[0012] According to a connection structure for a working machine provided by the utility model, the mounting frame includes:

[0013] A frame, wherein the first connecting component is disposed on a side surface of the frame;

[0014] An installation unit is arranged on the other side opposite to the frame, and the installation unit is provided with an installation groove. The two side walls opposite to the installation groove are provided with installation slides and blocking parts, the installation slides are used for sliding connection with the first mechanical body, and the blocking part is used for limiting the first mechanical body from being separated from the installation slides.

[0015] According to a connection structure for a working machine provided by the utility model, the mounting unit includes a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are both welded to the frame, and the first mounting plate and the second mounting plate are spaced and arranged opposite to each other to form the mounting groove.

[0016] According to the connection structure for working machinery provided by the utility model, the installation units are two groups, and the two groups of installation units are spaced apart along the length direction of the frame and are arranged on the frame facing away from each other;

[0017] The frame is provided with a first reinforcing plate, which is located between two of the first mounting plates. One end of the first reinforcing plate is connected to one group of the first mounting plates, and the other end of the first reinforcing plate is connected to another group of the first mounting plates.

[0018] According to the connection structure for a working machine provided by the utility model, a second reinforcing plate connecting the second mounting plate and the frame is provided between each of the second mounting plates and the frame.

[0019] According to the connection structure for a working machine provided by the utility model, there are multiple second reinforcing plates, and the multiple second reinforcing plates are arranged along the width direction of the frame.

[0020] According to the connection structure for operating machinery provided by the utility model, two lifting rings are arranged on the frame.

[0021] According to the connection structure for operating machinery provided by the utility model, at least two lifting rings are provided on the frame.

[0022] The utility model also provides an operating machine, comprising the above-mentioned connecting structure for the operating machine.

[0023] The connection structure for operating machinery provided by the utility model can achieve a stable connection between a first mechanical body (such as a pipe rolling machine) and a second mechanical body (such as a crane) and limit their relative positions through the design and assembly of a mounting frame, a first connection component, a second connection component and a connection unit; through the spaced arrangement of two first connection ear plates of the first connection component and the spaced arrangement of two second connection ear plates of the corresponding second connection component, the two first connection ear plates and the two second connection ear plates are fixedly connected through the same connection unit, the position of the connection force and the force transmission path are increased, the stress is dispersed between the two first connection ear plates and the two second connection ear plates, the local force and stress are reduced, the stress amplitude is reduced, the fatigue life is increased, thereby reducing the operating cost and improving the customer experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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.

[0025] Figure 1 It is an assembly schematic diagram of the connection structure provided by the utility model applied to the first mechanical body and the second mechanical body.

[0026] Figure 2 yes Figure 1 A magnified schematic diagram of the structure in the middle.

[0027] Figure 3 It is a first-view structural schematic diagram of a mounting frame and a first connecting ear plate of a connecting structure provided by the utility model.

[0028] Figure 4 It is a second perspective structural schematic diagram of the mounting frame and the first connecting ear plate of the connecting structure provided by the utility model.

[0029] Reference numerals:

[0030] 100, mounting frame; 110, frame body; 120, mounting unit; 121, mounting groove; 1211, mounting slide; 1212, blocking portion; 122, first mounting plate; 123, second mounting plate; 130, first reinforcing plate; 140, second reinforcing plate; 150, lifting ring;

[0031] 200, first mechanical body; 210, mounting protrusion; 211, mounting slide column;

[0032] 300, first connecting assembly; 310, first connecting ear plate;

[0033] 400, second connecting assembly; 410, second connecting ear plate;

[0034] 500. Second mechanical body; 600. Connecting unit. DETAILED DESCRIPTION

[0035] 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.

[0036] In the related art, a first ear plate is provided at the base of the crane, a frame plate is connected to the pipe rolling machine, a second ear plate is provided at the frame plate, and a first ear plate is fixedly connected to a second ear plate by a short pin shaft, which has problems of low local strength, large stress amplitude, and low fatigue life; in addition, four lifting rings 150 are provided at one side of the frame plate, and the lifting rings 150 have a large number of components, many processing steps, high cost, and great installation complexity.

[0037] Combine the following Figures 1 to 4 The invention describes a connection structure for a working machine and a working machine.

[0038] Reference Figures 1 to 4 The utility model provides a connection structure for an operating machine, including a mounting frame 100, a first connection assembly 300 and a second connection assembly 400, wherein the mounting frame 100 is connected to a first machine body 200, the first connection assembly 300 includes two first connection ear plates 310, and the two first connection ear plates 310 are installed on the mounting frame 100 at intervals, and the second connection assembly 400 includes two second connection ear plates 410, and the two second connection ear plates 410 are installed on a second machine body 500 at intervals; wherein the two first connection ear plates 310 are fixedly connected to the two second connection ear plates 410 through a connection unit 600 to limit the relative positions of the first machine body 200 and the second machine body 500.

[0039] The connection structure for operating machinery provided by the utility model can realize a stable connection between a first mechanical body 200 (for example, a pipe rolling machine) and a second mechanical body 500 (for example, a crane) and limit their relative positions through the design and assembly of a mounting frame 100, a first connection component 300, a second connection component 400 and a connection unit 600; through the two first connection ear plates 310 of the first connection component 300 and the two second connection ear plates 410 of the corresponding second connection component 400, the two first connection ear plates 310 and the two second connection ear plates 410 are all fixedly connected through the same connection unit 600, the number of connection ear plates that share the overall force is increased, the connection force positions and force transmission paths are increased, the stress is dispersed between the two first connection ear plates 310 and the two second connection ear plates 410, the local force and stress are reduced, the stress amplitude is reduced, the fatigue life is increased, thereby reducing the operating cost and improving the customer experience.

[0040] It should be noted that, in the present embodiment, the first mechanical body 200 is a tube rolling machine, the second mechanical body 500 is a crane, and the two second connecting ear plates 410 of the second connecting assembly 400 are connected to the crane base; of course, in some embodiments, the first mechanical body 200 is a crane, and the second mechanical body 500 is a tube rolling machine. The above-mentioned applied working machinery embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0041] It should also be noted that, in the present embodiment, the first connecting ear plate 310 and the mounting frame 100 are fixedly connected by welding. Of course, in some embodiments, the first connecting ear plate 310 and the mounting frame 100 can also be fixedly connected by bolts or bolts combined with welding, which is not limited here.

[0042] It is understandable that, referring to Figures 1 to 3In the embodiment of the utility model, the two second connecting ear plates 410 are inserted between the two first connecting ear plates 310, and the outer wall surface of the second connecting ear plate 410 is abutted with the inner wall surface of the first connecting ear plate 310; wherein, the connecting unit 600 is a connecting pin, and the connecting pin is passed through the two first connecting ear plates 310 and the two second connecting ear plates 410. With the above structure, the relative position between the first connecting ear plate 310 and the second connecting ear plate 410 is restricted and fixed by fixing the connecting pin, which can prevent relative displacement and accidental relative movement, and ensure that the first mechanical body 200 and the second mechanical body 500 maintain the desired positional relationship. When subjected to external force or stress, the connecting pin bears these forces and transmits them to the two first connecting ear plates 310 and the two second connecting ear plates 410. Due to the abutment and cooperation between the two first connecting ear plates 310 and the two second connecting ear plates 410, the force can be effectively transmitted and dispersed, reducing the possibility of stress concentration and excessive stress.

[0043] Specifically, refer to Figures 1 to 3 In this embodiment, along the width direction of the frame 110, two first holes are provided on each first connecting ear plate 310, two second holes are provided on each second connecting ear plate 410, and there are two connecting pins, one of which is provided through one row of first holes of the two first connecting ear plates 310 and one row of second holes of the two second connecting ear plates 410, and the other connecting pin is provided through another row of first holes of the two first connecting ear plates 310 and another row of second holes of the two second connecting ear plates 410, further increasing the force transmission path, reducing local force and stress, reducing stress amplitude, and increasing fatigue life. Of course, the number of the above-mentioned first holes, second holes and connecting pins is not limited here, and the number can be selected and set according to needs.

[0044] It should be noted that, in this embodiment, the two first connecting ear plates 310 are arranged at intervals, and the two second connecting ear plates 410 are arranged at intervals, and the number of connecting ear plates is increased. At the same time, the connecting pin shaft in this embodiment is a long pin shaft.

[0045] It is understandable that, referring to Figures 1 to 3 In the embodiment of the utility model, the first connection assembly 300 and the second connection assembly 400 are both in two groups, and the two groups of first connection assemblies 300 are installed on the mounting frame 100 at intervals, and the two groups of second connection assemblies 400 are matched with the two groups of first connection assemblies 300 in a one-to-one correspondence. Through the above arrangement, the two groups of first connection assemblies 300 are installed on the mounting frame 100 at intervals, and the two groups of second connection assemblies 400 are matched with the two groups of first connection assemblies 300 in a one-to-one correspondence, which can further enhance the stability, load bearing capacity and rigidity of the connection structure, can meet more stringent stress and strain requirements, and ensure the reliability and durability of the connection.

[0046] Of course, the number of the first connecting components 300 and the second connecting components 400 is not limited here, and the number can be selected and set according to needs.

[0047] It is understandable that, referring to Figures 1 to 4 In an embodiment of the utility model, the mounting frame 100 includes a frame body 110 and a mounting unit 120, the first connecting component 300 is arranged on one side of the frame body 110, and the mounting unit 120 is arranged on the other side opposite to the frame body 110, and the mounting unit 120 is provided with a mounting groove 121, and the two side walls opposite to the mounting groove 121 are provided with mounting slides 1211 and blocking portions 1212, the mounting slides 1211 are used for sliding connection with the first mechanical body 200, and the blocking portion 1212 is used for limiting the first mechanical body 200 from being separated from the mounting slides 1211. It can be understood that the tube rolling machine is provided with a mounting protrusion 210, and the mounting protrusion 210 is inserted into the mounting groove 121, and mounting slide columns 211 are provided on the opposite sides of the mounting protrusion 210. The mounting slide columns 211 are slidingly connected with the mounting slide 1211 in a one-to-one correspondence, and the mounting slide column 211 is limited from being separated from the mounting slide 1211 by a blocking portion 1212 at one end of the mounting slide 1211, thereby preventing the tube rolling machine from sliding out due to gravity, further enhancing the stability of the connection structure, and ensuring the reliability and durability of the connection.

[0048] Specifically, refer to Figures 1 to 4 In this embodiment, one end of the mounting slide 1211 is provided with an opening, and the other end of the mounting slide 1211 is provided with a blocking portion 1212, and the blocking portion 1212 abuts against the mounting slide post 211 to limit the mounting slide post 211 from being separated from the mounting slide 1211. It should be noted that, in this embodiment, the mounting slide 1211 and the blocking portion 1212 cooperate to form a U shape. Of course, in some embodiments, the connection method between the mounting frame 100 and the first mechanical body 200 is not limited to a sliding connection, and can also be a connection method such as a pin shaft, a screw, etc.

[0049] It is understandable that, referring to Figures 1 to 4 In the embodiment of the utility model, the mounting unit 120 includes a first mounting plate 122 and a second mounting plate 123, both of which are welded to the frame 110, and the first mounting plate 122 and the second mounting plate 123 are spaced and arranged opposite to each other to form a mounting groove 121. With the above structure, the first mounting plate 122 and the second mounting plate 123 are welded to the frame 110 by welding. Compared with the traditional bolt and pin connection method, the welding method reduces the number of mounting holes when manufacturing the device, and simplifies the processing process and installation.

[0050] It is understandable that, referring to Figures 1 to 4In the embodiment of the utility model, the mounting units 120 are divided into two groups, and the two groups of mounting units 120 are spaced apart along the length direction of the frame 110 and are arranged on the frame 110 with their backs facing each other; a first reinforcing plate 130 is provided on the frame 110, and the first reinforcing plate 130 is located between the two first mounting plates 122, one end of the first reinforcing plate 130 is connected to one group of the first mounting plates 122, and the other opposite end of the first reinforcing plate 130 is connected to the other group of the first mounting plates 122.

[0051] By adopting the above structure, the strength and rigidity of the entire connection structure can be increased by setting the first reinforcing plate 130. The first reinforcing plate 130 is located between the two first mounting plates 122, and is firmly fixed together by connecting to the two groups of first mounting plates 122. The above connection method can effectively increase the structural stability and bending rigidity between the mounting frame 100 and the two groups of mounting units 120 to cope with larger forces and stresses. When subjected to external loads, the first reinforcing plate 130 will bear part of the load and disperse it to the adjacent first mounting plates 122, thereby reducing the load of a single mounting plate, which helps to improve the load bearing capacity and durability of the connection structure, can reduce the number of plates and parts, simplify processing procedures and installation, reduce costs, increase the force transmission cross-sectional area, reduce local forces and stresses, reduce stress amplitude, and increase fatigue life.

[0052] It should be noted that the number of installation units 120 is not limited here, and the number can be selected and set according to needs.

[0053] Specifically, refer to Figures 1 to 4 In this embodiment, a second reinforcing plate 140 is provided between each second mounting plate 123 and the frame 110 to connect the two. Through the above structure, the force transmission cross-sectional area is increased, the local force and stress are reduced, the stress amplitude is reduced, and the fatigue life is increased.

[0054] Specifically, refer to Figures 1 to 4 In this embodiment, the number of the second reinforcing plates 140 is multiple, and the multiple second reinforcing plates 140 are arranged along the width direction of the frame 110, which improves the structural strength, further increases the force transmission cross-sectional area, reduces local force and stress, reduces the stress amplitude, and increases fatigue life. It should be noted that the second reinforcing plates 140 are triangular plates.

[0055] Specifically, refer to Figures 1 to 4In this embodiment, two lifting rings 150 are provided on the frame 110. The two lifting rings 150 are provided on one side of the frame 110 and play an auxiliary lifting role when installing the mounting frame 100 of the connection structure. The four lifting rings 150 in the related art are reduced to two lifting rings 150 in this embodiment. The lifting rings 150 have a small number of parts, a small number of processing steps, a low cost, and a low installation complexity. Of course, the number of the above-mentioned lifting rings 150 is not limited here.

[0056] 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 connection structure for a working machine, characterized in that: include: A mounting frame (100) connected to the first mechanical body (200); A first connection assembly (300), the first connection assembly (300) comprising two first connection ear plates (310), the two first connection ear plates (310) being installed on the mounting frame (100) at intervals; A second connecting assembly (400), the second connecting assembly (400) comprising two second connecting ear plates (410), the two second connecting ear plates (410) being spaced apart and mounted on the second mechanical body (500); The two first connecting ear plates (310) are fixedly connected to the two second connecting ear plates (410) via a connecting unit (600) to limit the relative position of the first mechanical body (200) and the second mechanical body (500).

2. The connection structure for a working machine according to claim 1, characterized in that: The two second connecting ear plates (410) are inserted between the two first connecting ear plates (310), and the outer wall surface of the second connecting ear plate (410) is abutted against the inner wall surface of the first connecting ear plate (310); Wherein, the connection unit (600) is a connection pin, and the connection pin is passed through the two first connection ear plates (310) and the two second connection ear plates (410).

3. The connection structure for a working machine according to claim 1 or 2, characterized in that: The first connection components (300) and the second connection components (400) are both in two groups, the two groups of the first connection components (300) are installed on the mounting frame (100) at intervals, and the two groups of the second connection components (400) are matched with the two groups of the first connection components (300) in a one-to-one correspondence.

4. The connection structure for a working machine according to claim 3, characterized in that: The mounting frame (100) comprises: A frame (110), wherein the first connecting component (300) is disposed on a side surface of the frame (110); The mounting unit (120) is arranged on the other side opposite to the frame (110), and the mounting unit (120) is provided with a mounting groove (121). The two opposite side walls of the mounting groove (121) are provided with mounting slides (1211) and blocking portions (1212). The mounting slides (1211) are used for sliding connection with the first mechanical body (200), and the blocking portions (1212) are used for limiting the first mechanical body (200) from being separated from the mounting slides (1211).

5. The connection structure for a working machine according to claim 4, characterized in that: The mounting unit (120) comprises a first mounting plate (122) and a second mounting plate (123); the first mounting plate (122) and the second mounting plate (123) are both welded to the frame (110); the first mounting plate (122) and the second mounting plate (123) are spaced apart and arranged opposite to each other to form the mounting groove (121).

6. The connection structure for a working machine according to claim 5, characterized in that: The installation units (120) are divided into two groups, and the two groups of the installation units (120) are spaced apart along the length direction of the frame (110) and are arranged in a direction opposite to the frame (110); The frame (110) is provided with a first reinforcing plate (130), and the first reinforcing plate (130) is located between the two first mounting plates (122). One end of the first reinforcing plate (130) is connected to one group of the first mounting plates (122), and the other opposite end of the first reinforcing plate (130) is connected to another group of the first mounting plates (122).

7. The connection structure for a working machine according to claim 5, characterized in that: A second reinforcing plate (140) is provided between each of the second mounting plates (123) and the frame (110) to connect the two.

8. The connection structure for a working machine according to claim 7, characterized in that: There are a plurality of the second reinforcing plates (140), and the plurality of the second reinforcing plates (140) are arranged along the width direction of the frame (110).

9. The connection structure for a working machine according to claim 4, characterized in that: At least two hanging rings (150) are provided on the frame (110).

10. A working machine, characterized in that: A connection structure for a working machine comprising any one of claims 1 to 9.

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