Swing frame assembly structure

Abstract

The utility model discloses a swing frame assembly structure, which belongs to the technical field of loaders and comprises a swing frame, a connecting sleeve, a lining, a gasket and a cover plate. The swing frame is connected with the axle housing or the axle cylinder of the drive axle through a connecting sleeve, and the connecting sleeve is connected with the axle housing or the axle cylinder. The end face of the connecting sleeve is connected with a cover plate through a bolt, and the cover plate is located between the connecting sleeve and the swing frame. A gasket is arranged at the connecting position of the cover plate, the swing frame and the connecting sleeve, and a lining is arranged at the connecting position of the connecting sleeve and the swing frame. The axle housing or the axle cylinder can be prevented from being subjected to large bending stress, and the reliability is effectively improved; all parts of the swing frame assembly can be prevented from being abraded, and both rigidity and abrasion resistance are achieved; the consumption of the lubricating grease can be reduced, and waste caused by leakage of the lubricating grease is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of loader, concretely relates to a swing frame assembly structure. BACKGROUND

[0002] The statements in this section merely provide background information related to the utility model and do not necessarily constitute prior art.

[0003] The loader is a kind of earthwork construction machinery widely used in highway, railway, building, water and electricity, port, mine and other construction projects, it is mainly used for shoveling soil, sand, lime, coal and other bulk materials, and also can carry out light degree shovel work to ore, hard soil etc. By changing different auxiliary working devices, it can also carry out bulldozing, hoisting and other material handling operations such as timber.

[0004] The rear drive axle with swing frame for 5 tons and above loader is connected with the frame through the swing frame, the existing bridge housing or bridge cylinder with swing frame assembly is subjected to greater bending stress, and the reliability is poor, and each component of swing frame assembly is prone to wear, and rigidity and wear resistance are difficult to be considered;It is also prone to grease exosmosis, which causes grease waste and affects the use of swing frame assembly. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the utility model provides a swing frame assembly structure, which can avoid the bridge housing or bridge cylinder being subjected to greater bending stress, effectively improve the reliability, avoid the wear of each component of swing frame assembly, realize the consideration of rigidity and wear resistance, and reduce the amount of grease, avoid the waste caused by grease exosmosis.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A swing frame assembly structure, comprising a swing frame, a connecting sleeve, a bushing, a gasket and a cover plate, the swing frame is connected with the drive axle bridge housing or bridge cylinder through the connecting sleeve, the connecting sleeve is connected with the bridge housing or bridge cylinder, the end face of the connecting sleeve is connected with the cover plate through bolt, and the cover plate is between the connecting sleeve and the swing frame, the connecting position of the cover plate, the swing frame and the connecting sleeve is provided with a gasket, and the connecting position of the connecting sleeve and the swing frame is provided with a bushing.

[0008] Further, a plurality of threaded holes are arranged on the swing frame, the threaded holes on the swing frame are arranged at intervals around the center position of the swing frame, and the both ends of the swing frame are provided with through holes.

[0009] Further, the end face of the swing frame is the mounting surface between the swing frame and the frame, and the mounting surface of the swing frame and the frame is arranged with small offset.

[0010] Further, the gasket comprises a first gasket, a second gasket and a third gasket, and the first gasket, the second gasket and the third gasket are arranged at the connecting position of the cover plate, the swing frame and the connecting sleeve.

[0011] Further, the first gasket and the second gasket are 0-shaped gaskets.

[0012] Further, the first gasket is arranged at the connecting position of the swing frame and the connecting sleeve, and the second gasket is arranged at the connecting position of the cover plate and the connecting sleeve.

[0013] Further, the third gasket is arranged at the upper and lower ends of the end portion of the cover plate, one end surface of the third gasket is tightly attached to the surface of the cover plate, and the other end surface of the third gasket is tightly attached to the surface of the swing frame.

[0014] Further, one end surface of the bushing is attached to the surface of the connecting sleeve, and the other end surface of the bushing is attached to the surface of the swing frame.

[0015] Further, the connecting sleeve and the swing frame are detachably connected.

[0016] Further, the connecting sleeve and the cover plate are detachably connected, and the cover plate and the swing frame are detachably connected.

[0017] Compared with the prior art, the utility model has the advantages and positive effects that:

[0018] The utility model discloses swing frame, connecting sleeve, bushing, gasket and cover plate are arranged, swing frame and drive axle housing or bridge cylinder are connected through connecting sleeve, and connecting sleeve is fixed to axle housing, bridge cylinder through bolt or welding, swing frame and frame mounting surface adopt small offset arrangement (the distance of mounting surface to connecting sleeve center line is less than or equal to 50mm), avoid the axle housing or bridge cylinder to be subjected to greater bending stress, improve reliability.

[0019] The end surface of the connecting sleeve and the cover plate are fastened through bolts, and the cover plate limits the axial movement of the swing frame.

[0020] The cover plate is fixed at the connecting sleeve through bolts, the cover plate is provided with a sealing ring, the gap between the cover plate and the gasket and the surrounding space are controlled, the swing frame grease filling space is reduced, the grease filling amount is saved, the bushing and the gasket position are full of grease, the first gasket and the second gasket are used for sealing to avoid grease exosmosis, the amount of grease is reduced, and the waste caused by grease exosmosis is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0022] Figure 1 This is a top view of the swing frame assembly of this utility model;

[0023] Figure 2 yes Figure 1 A cross-sectional view along the AA direction;

[0024] In the diagram: 1. Swing frame; 2. Connecting sleeve; 3. First washer; 4. Bushing; 5. Second washer; 6. Third washer; 7. Cover plate; 8. Mounting surface; 9. First filling position; 10. Second filling position. Detailed Implementation

[0025] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0026] The rear drive axle of loaders with a capacity of 5 tons or more is equipped with a swing frame. The rear drive axle is connected to the vehicle frame through the swing frame. The existing axle housing or axle cylinder with the swing frame assembly is subject to large bending stress, resulting in poor reliability. Furthermore, the various components of the swing frame assembly are prone to wear, making it difficult to balance rigidity and wear resistance. Additionally, grease leakage is likely to occur, causing grease waste and affecting the use of the swing frame assembly.

[0027] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a swing frame assembly structure, as shown below. Figure 2 As shown, it includes a swing frame 1, a connecting sleeve 2, a bushing 4, a washer, and a cover plate 7; the swing frame 1 is connected to the drive axle housing or axle cylinder through the connecting sleeve 2, and the connecting sleeve 2 is connected to the axle housing or axle cylinder; the end face of the connecting sleeve 2 is connected to the cover plate 7 by bolts, and the cover plate 7 is located between the connecting sleeve 2 and the swing frame 1; a washer is provided at the connection position of the cover plate 7, the swing frame 1, and the connecting sleeve 2, and a bushing 4 is provided at the connection position of the connecting sleeve 2 and the swing frame 1.

[0028] like Figure 1 As shown, the swing frame 1 has several threaded holes spaced apart, and these threaded holes are spaced around the center of the swing frame 1. The two ends of the swing frame 1 have through holes. The end face of the swing frame 1 is the mounting surface 8 between the swing frame 1 and the frame. The mounting surface 8 between the swing frame 1 and the frame is arranged with a small offset (i.e., the distance from the mounting surface to the center line of the connecting sleeve is ≤50mm).

[0029] The swing frame 1 is cut from a steel plate of a certain thickness specification, thereby saving mold opening costs, and the thickness of the steel plate is selected according to the overall machine weight and the rated load; the swing frame 1 is connected with the drive axle housing or axle tube through a connecting sleeve 2, the connecting sleeve 2 is fixed to the axle housing or axle tube through bolts or welding, the swing frame 1 and the vehicle frame mounting surface 8 are arranged with a small offset (the distance from the mounting surface 8 to the center line of the connecting sleeve 2 is less than or equal to 50 mm), thereby avoiding that the axle housing or axle tube is subjected to a large bending stress and improving the reliability.

[0030] The gaskets include a first gasket 3, a second gasket 4 and a third gasket 6, and the first gasket 3, the second gasket 4 and the third gasket 6 are arranged at the connecting positions of the cover plate 7, the swing frame 1 and the connecting sleeve 2.

[0031] The first gasket 3 and the second gasket 4 are 0-type rings. The 0-type ring is a common sealing element applied in various mechanical equipment, and its main function is to prevent fluid or gas leakage, and at the same time, it plays a sealing and isolation role. The 0-type ring is widely used due to its simple structure, convenient installation and reliable sealing performance. The 0-type ring arranged at multiple positions can play a good sealing role.

[0032] The first gasket 3 is arranged at the connecting position of the swing frame 1 and the connecting sleeve 2, and the second gasket 4 is arranged at the connecting position of the cover plate 7 and the connecting sleeve 2. The third gasket 6 is arranged at the upper and lower ends of the end portion of the cover plate 7, one end face of the third gasket 6 is tightly attached to the surface of the cover plate 7, and the other end face of the third gasket 6 is tightly attached to the surface of the swing frame 1. One end face of the bushing 4 is attached to the surface of the connecting sleeve 2, and the other end face of the bushing 4 is attached to the surface of the swing frame 1.

[0033] The end face of the connecting sleeve 2 is fastened with the cover plate 7 through bolts, and the cover plate 7 limits the axial movement of the swing frame 1; the swing frame 1 and the connecting sleeve 2, and the swing frame 1 and the cover plate 7 have relative rotation, in order to avoid wear and tear, a high-strength wear-resistant material bushing 4 and a gasket are used in the middle to ensure rigidity and increase wear resistance, thereby avoiding wear and tear of each component of the swing frame 1 assembly, and achieving the combination of rigidity and wear resistance.

[0034] The connecting sleeve 2 and the swing frame 1 are detachably connected; the connecting sleeve 2 and the cover plate 7 are detachably connected; the cover plate 7 and the swing frame 1 are detachably connected; and the connecting sleeve 2, the swing frame 1 and the cover plate 7 are detachably connected, thereby facilitating disassembly and convenient for later installation and maintenance.

[0035] The cover plate 7 is fixed at the connecting sleeve 2 through bolts, and the cover plate 7 has a sealing ring, which controls the gap between the cover plate 7 and the gasket and the surrounding space, thereby reducing the lubricating grease filling space of the swing frame 1; as shown in Figure 2 , there are a first filling position and a second filling position, wherein the first filling position is a relative movable surface, at which the lubricating grease is brushed, and the second filling position is a cavity, in which the lubricating grease is filled.

[0036] The connecting sleeve 2 can be fixed to the axle housing body by bolts or welding, reducing the grease filling space of the swing frame 1, saving the amount of grease filling, and filling the grease in the position of the bushing 4 and the gasket. In order to avoid the exosmosis of the grease, the first gasket 3 and the second gasket 4 are sealed, the amount of the grease is reduced, and the waste caused by the exosmosis of the grease is avoided.

[0037] Although the specific embodiments of the present application are described above with reference to the drawings, it is not a limitation on the scope of protection of the present application. Those skilled in the art should understand that various modifications or changes made by those skilled in the art on the basis of the technical solutions of the present application without creative labor are still within the scope of protection of the present application.

Claims

1. A swing frame assembly structure, characterized by, Including swing frame, connecting sleeve, bushing, gasket and cover plate, the swing frame and drive axle housing or axle tube are connected through connecting sleeve, the connecting sleeve is connected with axle housing or axle tube, the end surface of connecting sleeve is connected with cover plate through bolt, the cover plate is between connecting sleeve and swing frame, the connecting position of cover plate, swing frame and connecting sleeve is provided with gasket, the connecting position of connecting sleeve and swing frame is provided with bushing.

2. A swing frame assembly according to claim 1, wherein A plurality of threaded holes are arranged on the swing frame, the threaded holes on the swing frame are arranged around the center position of the swing frame, and the both ends of the swing frame are provided with through holes.

3. The swing assembly of claim 1, wherein: The end surface of the swing frame is the mounting surface between the swing frame and the frame, and the mounting surface of the swing frame and the frame is arranged with small offset.

4. The swing assembly of claim 1, wherein: The gasket includes a first gasket, a second gasket and a third gasket, and the first gasket, the second gasket and the third gasket are arranged at the connecting position of the cover plate, the swing frame and the connecting sleeve.

5. A swing frame assembly according to claim 4, wherein the swing frame assembly is configured to be mounted to a wall of a building. The first gasket and the second gasket are 0 type rings.

6. A swing frame assembly according to claim 4, wherein: The first gasket is arranged at the connecting position of the swing frame and the connecting sleeve, and the second gasket is arranged at the connecting position of the cover plate and the connecting sleeve.

7. The swing assembly of claim 4, wherein: The third gasket is arranged at the upper and lower ends of the end portion of the cover plate, one end surface of the third gasket is closely attached to the surface of the cover plate, and the other end surface of the third gasket is closely attached to the surface of the swing frame.

8. The swing assembly of claim 1, wherein: One end surface of the bushing is attached to the surface of the connecting sleeve, and the other end surface of the bushing is attached to the surface of the swing frame.

9. The swing assembly of claim 1, wherein: The connecting sleeve and the swing frame are detachably connected.

10. The swing assembly of claim 1, wherein: The connecting sleeve and the cover plate are detachably connected, and the cover plate and the swing frame are detachably connected.

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