Rear-turning type hood framework of loading machine

Abstract

The utility model relates to a rear-turning hood framework of a loader, which comprises a front beam, a middle beam and a rear beam, and the front beam comprises two front support structures and a first reinforcing beam which are arranged in parallel; the middle beam comprises two parallel middle guide beams and an upper cross beam; the rear beam comprises two rear supporting structures which are arranged in parallel and a rear cross beam; by means of the middle guide beam, the front framework, the middle framework and the rear framework of the hood framework are welded into the integrated hood framework through the welding type framework assembly, the problem that accumulated errors such as machining errors and assembly errors of an assembly type framework are large is solved, and the hood can be turned backwards as a whole. The covering part installation point is positioned in the welding process, adjustment is not needed in the installation process, and the installation efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a rear-flip hood frame of a loader. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] The engine hood frame installed on the loader is the supporting structure of the engine hood. Its main function is to provide stable support and protection for the engine hood, ensuring that the engine hood can effectively isolate the engine noise and heat, and protect the engine from the external environment. With the rapid development of industry, the design, manufacturing and material selection of the engine hood frame are also constantly innovating and improving.

[0004] However, the inventors found that there are still some problems in the prior art:

[0005] (1) The assembled frame, the front frame, the middle frame, and the rear frame are assembled in blocks, resulting in large cumulative errors such as processing errors and assembly errors.

[0006] (2) When repairing and maintaining large parts such as the engine, the hood must be removed first, which is inconvenient.

[0007] (3) When installing frame covering parts such as the hood and side doors, the installation position needs to be adjusted or the installation holes need to be changed to long holes, resulting in low efficiency and poor consistency. Utility Model Content

[0008] The utility model aims to provide a rear-flip hood framework for a loader, comprising a front beam, a middle beam and a rear beam, wherein the front beam comprises two parallel front support structures, a first reinforcing beam is arranged between the two front support structures, and the first reinforcing beam is arranged at the upper end of the front support structure; the middle beam comprises two parallel intermediate guide beams, an upper cross beam is arranged between the two intermediate guide beams, and the upper cross beam is arranged at the upper end of the intermediate guide beam; the rear beam comprises two parallel rear support structures, a rear cross beam is arranged between the two rear support structures, and the rear cross beam is arranged at the upper end of the rear support structure;

[0009] The lower end of the front support structure is connected to the lower end of the middle guide beam through a seamless steel pipe, one end of the seamless steel pipe is welded to the support plate at the lower end of the front support structure, and the other end is welded to the support plate at the lower end of the middle guide beam.

[0010] A support plate and a guide interface are vertically arranged at the lower end of the intermediate guide beam. The intermediate guide beam is connected to the lower end of the rear support structure via a curved seamless steel pipe using the guide interface. One end of the seamless steel pipe is welded at the connection with the guide interface, and the other end is welded to the support plate at the lower end of the rear support structure.

[0011] The steel pipes used to connect the front beam, the middle beam and the lower part of the rear beam together form the lower frame of the hood, that is, the welded frame assembly; the welded frame assembly connects the front frame, the middle frame and the rear frame of the hood frame into one by welding; at the same time, a number of mounting plates are arranged on the front beam, the middle beam, the rear beam and the lower frame.

[0012] The closed ends of the front beam and the rear beam are connected through the main beam. One end of the main beam is welded at the arc section of the first reinforcing beam, and the other end is welded at the arc section of the rear cross beam. The same welding process is performed at the position where the middle of the main beam passes through the upper cross beam.

[0013] The rear-flip hood frame of a loader also includes an auxiliary beam, which is welded from three seamless steel pipes to form an approximate π shape.

[0014] The rear-flip hood frame of a loader also includes a second reinforcing beam, which is a curved seamless steel pipe.

[0015] The rear-flip hood frame of a loader also includes a third reinforcing beam, which forms a right-angled triangle with the lower hood frame and the rear supporting structure, further ensuring the stability of the overall structure of the hood frame.

[0016] The welding of seamless steel pipes is carried out by welding and fixing between the pipe walls.

[0017] Beneficial effects of one or more of the above technical solutions:

[0018] (1) The front frame, middle frame and rear frame of the hood frame are welded into an integrated hood frame through a welded frame assembly through an intermediate guide beam, which solves the problem of large cumulative errors such as processing errors and assembly errors of the assembled frame, and can ensure that the hood can be flipped back as a whole.

[0019] (2) When the hood falls, the front support structure can support the hood at the front and prevent the hood from lateral displacement due to vibration caused by operation. The middle guide beam can support the hood at the rear and protect the hood flip hinge. At the same time, the middle guide beam can be used in conjunction with the guide block on the frame to prevent the lower edge of the frame from shrinking toward the middle, which can not only protect the hood and extend its service life, but also increase the convenience of using the hood.

[0020] (3) The one-piece frame has several mounting plates on the front beam, middle beam, rear beam and lower frame. The mounting points of the covering parts have been positioned during the welding process and no adjustment is required during installation. The installation efficiency is high and the consistency is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation on the present application.

[0022] Figure 1 It is a schematic diagram of the overall structure of the hood frame of the utility model.

[0023] Figure 2 It is a schematic diagram of the simplified structure of the hood frame side of the utility model.

[0024] In the figure, 1 is the front frame; 2 is the middle frame; 3 is the rear frame; 4 is the front supporting structure; 5 is the first reinforcing beam; 6 is the middle guide beam; 7 is the upper cross beam; 8 is the rear supporting structure; 9 is the rear cross beam; 10 is the supporting plate; 11 is the guide interface; 12 is the main beam; 13 is the second reinforcing beam; 14 is the third reinforcing beam; 15 is the mounting plate; and 16 is the auxiliary beam. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-2 , describing the specific implementation of this embodiment.

[0026] Reference Figure 1 The embodiment of the present application provides a rear-flip hood skeleton of a loader, including a front beam, a middle beam and a rear beam. The front beam includes two parallel front support structures 4, a first reinforcing beam 5 is arranged between the two front support structures 4, and the first reinforcing beam 5 is arranged at the upper end of the front support structure 4; the middle beam includes two parallel intermediate guide beams 6, an upper cross beam 7 is arranged between the two intermediate guide beams 6, and the upper cross beam 7 is arranged at the upper end of the intermediate guide beam 6; the rear beam includes two parallel rear support structures 8, a rear cross beam 9 is arranged between the two rear support structures 8, and the rear cross beam 9 is arranged at the upper end of the rear support structure 8;

[0027] The lower end of the front support structure 4 is connected to the lower end of the intermediate guide beam 6 through a seamless steel pipe, one end of the seamless steel pipe is welded to the support plate 10 at the lower end of the front support structure 4, and the other end is welded to the support plate 10 at the lower end of the intermediate guide beam 6.

[0028] A support plate 10 and a guide interface 11 are vertically arranged at the lower end of the intermediate guide beam 6. The intermediate guide beam 6 is connected to the lower end of the rear support structure 8 via a curved seamless steel pipe using the guide interface 11. One end of the seamless steel pipe is welded at the connection with the guide interface 11, and the other end is welded to the support plate 10 at the lower end of the rear support structure 8.

[0029] The steel pipes used to connect the front beam, middle beam and rear beam together form the under-hood frame, that is, the welded frame assembly; Figure 2 As shown, the welded frame assembly connects the front frame 1, the middle frame 2 and the rear frame 3 of the hood frame into one body by welding.

[0030] The design of the middle guide beam welds the front frame 1, the middle frame 2 and the rear frame 3 of the hood frame into an integrated hood frame through a welded frame assembly, which solves the problem of large cumulative errors such as processing errors and assembly errors of the existing assembled frames, and can ensure that the hood can be flipped back as a whole.

[0031] At the same time, a number of mounting plates 15 are arranged on the front beam, middle beam, rear beam and lower frame. When there is a need for installation, the mounting points of the cover have been positioned during the welding process, and the front panel, top panel and side panels of the engine hood can be positioned and assembled with the mounting plates 15 without the need for further adjustment, thereby improving the installation efficiency.

[0032] The closed ends of the front beam and the rear beam are connected by a main beam 12. One end of the main beam 12 is welded to the arc section of the first reinforcing beam 5, and the other end is welded to the arc section of the rear cross beam 9. The same welding treatment is performed at the position where the middle of the main beam 12 passes through the upper cross beam 7. The material used for the main beam is also seamless steel pipe material.

[0033] The rear-flip hood frame of a loader also includes an auxiliary beam 16, which is welded by three seamless steel pipes to form an approximate π shape; wherein the two ends of the upper seamless steel pipe are respectively welded to the two sides of the main beam 12, and the lower ends of the two lower seamless steel pipes are respectively welded to the two sides of the first reinforcing beam 5 and are parallel to each other.

[0034] The rear-flip hood frame of the loader further comprises a second reinforcing beam 13 , which is a curved seamless steel pipe. One end of the second reinforcing beam 13 is welded to the main beam 12 , and the other end is welded below the arc section of the rear cross beam 9 .

[0035] The rear-flip hood frame of a loader also includes a third reinforcing beam 14, one end of the third reinforcing beam 14 is welded below the arc section of the rear cross beam 9, and the other end is welded to the port of the lower hood frame; the third reinforcing beam 14 forms a right-angled triangle with the lower hood frame and the rear support structure 8, which can better ensure the stability of the overall structure of the hood frame.

[0036] The welding of seamless steel pipes is carried out by welding and fixing between the pipe walls.

[0037] When the rear-flip hood frame of a loader described in the utility model falls, the front support structure 4 can support the hood at the front and prevent the hood from lateral displacement due to vibration generated by operation, and the middle guide beam 6 can support the hood at the rear and protect the hood flip hinge.

[0038] At the same time, the middle guide beam 6 can be used in conjunction with the guide block on the frame. Specifically, the guide block is installed on the frame to determine the width size, so that when the guide beam slides downward along the guide block during the falling process of the hood, the lower edge of the skeleton is prevented from shrinking toward the middle, thereby avoiding interference between the hood and components such as the power battery and the engine. This can not only protect the hood and delay the service life of the hood, but also increase the convenience of using the hood.

[0039] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A rear-flip hood frame for a loader, characterized in that: The invention comprises a front beam, a middle beam and a rear beam, wherein the front beam comprises two parallel front support structures, a first reinforcing beam is arranged between the two front support structures, and the first reinforcing beam is arranged at the upper end of the front support structure; the middle beam comprises two parallel intermediate guide beams, an upper cross beam is arranged between the two intermediate guide beams, and the upper cross beam is arranged at the upper end of the intermediate guide beams; the rear beam comprises two parallel rear support structures, a rear cross beam is arranged between the two rear support structures, and the rear cross beam is arranged at the upper end of the rear support structure; The lower end of each front support structure is connected to the lower end of the intermediate guide beam through a seamless steel pipe; the lower end of the intermediate guide beam is vertically arranged with a support plate and a guide interface, and the intermediate guide beam is connected to the lower end of the rear support structure through a curved seamless steel pipe using the guide interface.

2. The rear-flip hood frame of a loader according to claim 1, characterized in that: The lower end of the front support structure is connected to the lower end of the intermediate guide beam through a seamless steel pipe. Specifically, one end of the seamless steel pipe is welded to the support plate at the lower end of the front support structure, and the other end is welded to the support plate at the lower end of the intermediate guide beam.

3. The rear-flip hood frame of a loader according to claim 1, characterized in that: The intermediate guide beam is connected to the lower end of the rear support structure via a curved seamless steel pipe using a guide interface. Specifically, one end of the seamless steel pipe is welded at the connection with the guide interface, and the other end is welded to the support plate at the lower end of the rear support structure.

4. The rear-flip hood frame of a loader according to claim 1, characterized in that: The closed ends of the front beam and the rear beam are connected through a main beam. One end of the main beam is welded to the arc section of the first reinforcing beam, and the other end is welded to the arc section of the rear cross beam. The same welding process is performed at the position where the middle of the main beam passes through the upper cross beam.

5. The rear-flip hood frame of a loader according to claim 1, characterized in that: It also includes an auxiliary beam, which is welded by three seamless steel pipes to form an approximate π shape.

6. The rear-flip hood frame of a loader according to claim 1, characterized in that: It also includes a second reinforcing beam, which is a curved seamless steel pipe.

7. The rear-flip hood frame of a loader according to claim 1, characterized in that: It also includes a third reinforcing beam, which forms a right-angled triangle with the lower frame of the hood and the rear supporting structure, further ensuring the stability of the overall structure of the hood frame.

8. The rear-flip hood frame of a loader according to claim 1, characterized in that: A plurality of mounting plates are arranged on the front beam, the middle beam, the rear beam and the lower frame.

9. The rear-flip hood frame of a loader according to claim 1, characterized in that: The welding of seamless steel pipes is done by welding and fixing between the pipe walls.

10. The rear-flip hood frame of a loader according to claim 1, characterized in that: The steel pipes used to connect the front beam, the middle beam and the lower part of the rear beam together form a welded frame assembly, and the welded frame assembly connects the front frame, the middle frame and the rear frame of the hood frame into one body by welding.

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