A dustproof structure of a lubricating oil nozzle, a connecting rod mechanism and a loader

Abstract

The utility model provides a kind of lubricating oil nozzle dustproof structure, connecting rod mechanism and loader, belong to lubricating mechanism technical field.A kind of lubricating oil nozzle dustproof structure, including oil nozzle installation matrix, oil nozzle installation matrix is equipped with counterbore, counterbore is equipped with lubricating oil nozzle, the top surface of lubricating oil nozzle does not exceed the surface of oil nozzle installation matrix and forms built-in hidden structure, the bottom surface of lubricating oil nozzle is in counterbore and is in abutment, and lubricating oil nozzle inside is communicated with lubricating oil channel, and there is clearance for lubricating oil gun insertion between lubricating oil nozzle side wall and counterbore inner wall;It further includes protective cover, protective cover is rotatably connected with oil nozzle installation matrix, and the bottom surface of protective cover can completely cover the counterbore on oil nozzle installation matrix.The utility model is applied in the process of material lifting, solve the problem that material can knock lubricating oil nozzle or block lubricating oil nozzle, improve the service life of structure.

Description

Technical Field

[0001] This utility model relates to the field of lubrication mechanism technology, specifically to a dustproof structure for a lubricating oil nozzle, a linkage mechanism, and a loader. Background Technology

[0002] In a loader, the linkage and boom are the components closest to the attachments. Because loaders use a reversible six-wheel drive, the angle of the loader bucket first increases and then decreases during the loading and unloading process. Although existing lubrication nozzles can lubricate the linkage mechanism, they still have the following drawbacks: When loading loose materials, it is inevitable that some material will spill backward during the lifting process. As the working time of the loader increases, the lubrication nozzle on the tie rod will be greatly affected by the material or become blocked, causing the lubrication structure to fail and the tie rod pin to reach its fatigue life prematurely and be damaged. Utility Model Content

[0003] In order to solve the problems existing in the background art, this utility model proposes a dustproof structure for a lubricating oil nozzle, a linkage mechanism, and a loader.

[0004] The technical solution to the technical problem solved by this utility model is as follows: A dustproof structure for a lubricating nozzle includes: The oil nozzle mounting base has a countersunk hole, and a lubricating oil nozzle is installed inside the countersunk hole. The top surface of the lubricating oil nozzle does not extend beyond the surface of the oil nozzle mounting base to form a built-in hidden structure. The bottom surface of the lubricating oil nozzle abuts against the countersunk hole, and the inside of the lubricating oil nozzle is connected to the lubricating oil passage. There is a gap between the side wall of the lubricating oil nozzle and the inner wall of the countersunk hole for the lubricating oil gun to be inserted. The protective cover is rotatably connected to the oil nozzle mounting base. The bottom surface of the protective cover can completely cover the countersunk hole on the oil nozzle mounting base to shield the lubricating oil nozzle.

[0005] Preferably, the oil nozzle mounting base has a blind hole near the oil nozzle, the blind hole has an internal thread, and also includes a bolt, the bolt is threaded to the blind hole, and a protective cover is provided between the top of the bolt and the oil nozzle mounting base, the protective cover being rotatably sleeved on the bolt.

[0006] Preferably, the oil nozzle mounting base has a blind hole near the oil nozzle, a nut is fixedly connected in the blind hole, and a bolt is also included. The bolt and the nut are threaded together, and a protective cover is provided between the top of the bolt and the oil nozzle mounting base. The protective cover can be rotatably sleeved on the bolt.

[0007] Preferably, a compression spring is provided between the protective cover and the bolt. The compression spring is sleeved on the bolt, with one end of the compression spring connected to the protective cover and the other end connected to the bolt.

[0008] Preferably, the compression spring is made of stainless steel or spring steel.

[0009] Preferably, the protective cover has a stepped through hole consisting of a large hole and a small hole; it also includes a lifting rod, the lower end of which is fixedly connected to a sealing gasket. The lifting rod can be fitted and slidably inserted into the small hole, the sealing gasket can be fitted and slidably inserted into the large hole, and the sealing gasket can be fitted and slidably inserted into the countersunk hole. A tension spring is provided between the lifting rod and the protective cover, and the tension spring is sleeved on the lifting rod. When the lifting rod is lifted, the bottom surface of the sealing gasket is located inside the protective cover.

[0010] Preferably, the protective cover is a long rectangular shape.

[0011] Preferably, the protective cover does not extend beyond the sides of the nozzle mounting base.

[0012] Preferably, a linkage mechanism includes a dustproof structure for the lubricating nozzle.

[0013] Preferably, a loader includes a dustproof structure for the lubricating nozzle and / or a linkage mechanism.

[0014] The above technical solution has the following advantages or beneficial effects: 1. The protective cover is rotatably connected to the linkage mechanism and can completely cover the countersunk hole, effectively protecting the lubricating nozzle and preventing it from being bumped or blocked by materials, thus extending the service life of the linkage mechanism.

[0015] 2. A compression spring is provided between the protective cover and the bolt. The compression spring can exert pressure on the protective cover to prevent the bolt from loosening due to vibration, which in turn will cause the protective cover to loosen. It also makes rotation easier and eliminates the need to loosen the bolt to rotate the protective cover and add lubricating oil. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] Figure 1 It is a 3D diagram of a conventional linkage mechanism.

[0018] Figure 2 This is a 3D view of the linkage mechanism with added material stop mechanism.

[0019] Figure 3 This is an exploded view of the structure of Embodiment 1 of this utility model.

[0020] Figure 4 This is a utility model Figure 3 A magnified view of a portion of the image.

[0021] Figure 5 This is a structural schematic diagram of Embodiment 2 of the present invention. Figure 1 .

[0022] Figure 6 This is a structural schematic diagram of Embodiment 2 of the present invention. Figure 2 .

[0023] Explanation of reference numerals in the attached figures: 1. Lubricating nozzle; 2. Protective cover; 3. Compression spring; 4. Bolt; 5. Linkage mechanism; 6. Blind hole; 7. Countersunk hole; 8. Sealing gasket; 9. Lifting rod; 10. Tension spring; 11. Pull handle. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] Example 1: Figure 1 The diagram shows a conventional linkage mechanism 5. The lubricating nozzle 1 is located above the connection end between the tie rod and the bucket, and the lubricating nozzle 1 is completely exposed. This structure makes the lubricating nozzle 1 most susceptible to being bumped by materials.

[0026] Figure 2 To enhance the three-dimensional view of the linkage mechanism 5 of the material blocking mechanism, a countersunk hole 7 is set above the tie rod, and a material blocking structure is added in front of the countersunk hole. Although this can reduce the risk of the lubricating oil nozzle being bumped to some extent, loose materials are easily deposited inside the countersunk hole 7 when shoveling and transporting, and are difficult to clean later. like Figure 3 - Figure 4 As shown, this embodiment proposes a dustproof structure for a lubricating nozzle, comprising: The oil nozzle mounting base has a countersunk hole 7, and a lubricating oil nozzle 1 is installed inside the countersunk hole 7. The top surface of the lubricating oil nozzle 1 does not extend beyond the surface of the oil nozzle mounting base to form a built-in hidden structure. The bottom surface of the lubricating oil nozzle 1 abuts against the inside of the countersunk hole 7, and the inside of the lubricating oil nozzle 1 is connected to the lubricating oil channel. There is a gap between the side wall of the lubricating oil nozzle 1 and the inner wall of the countersunk hole 7 for the lubricating oil gun to be inserted. The protective cover 2 is rotatably connected to the oil nozzle mounting base. The bottom surface of the protective cover 2 can completely cover the countersunk hole 7 on the oil nozzle mounting base to block the lubricating oil nozzle 1.

[0027] Usage effect: The protective cover 2 is rotatably connected to the linkage mechanism 5, and the protective cover 2 can completely cover the countersunk hole 7, so that the lubricating nozzle 1 is effectively protected, preventing the lubricating nozzle 1 from being bumped or blocked by materials, and improving the service life of the linkage mechanism 5.

[0028] This utility model protects the lubricating nozzle 1 through the combined use of bolt 4 and protective cover 2. There are two ways to connect bolt 4 to the nozzle mounting base: The first method: A blind hole 6 is provided on the oil nozzle mounting base near the oil nozzle 1. The blind hole 6 has an internal thread and also includes a bolt 4. The bolt 4 is threadedly connected to the blind hole 6. A protective cover 2 is also provided between the top of the bolt 4 and the oil nozzle mounting base. The protective cover 2 is rotatably sleeved on the bolt 4.

[0029] The second method: A blind hole 6 is provided on the oil nozzle mounting base near the oil nozzle 1. A nut is fixedly connected in the blind hole 6, and a bolt 4 is also included. The bolt 4 is threadedly connected to the nut. A protective cover 2 is also provided between the top of the bolt 4 and the oil nozzle mounting base. The protective cover 2 is rotatably sleeved on the bolt 4.

[0030] In some embodiments, a compression spring 3 is provided between the protective cover 2 and the bolt 4. The compression spring 3 is sleeved on the bolt 4, with one end of the compression spring 3 connected to the protective cover 2 and the other end connected to the bolt 4.

[0031] Effectiveness: A compression spring 3 is provided between the protective cover 2 and the bolt 4. The compression spring 3 can exert pressure on the protective cover 2 to prevent the bolt 4 from loosening due to vibration, which in turn would cause the protective cover 2 to loosen. It also makes rotation more convenient, without the need to loosen the bolt 4 to rotate the protective cover 2 and add lubricating oil.

[0032] In some embodiments, the compression spring 3 is made of stainless steel or spring steel. Stainless steel has excellent corrosion resistance and can withstand humid environments and rain erosion. It does not require additional surface treatment and has low maintenance costs. Spring steel can withstand preload and vibration impact for a long time and is not prone to permanent deformation.

[0033] In some embodiments, the protective cover 2 is a long rectangular shape; it is simple to process and can cover the lubricating nozzle 1 with less material.

[0034] In some embodiments, the protective cover 2 does not extend beyond the sides of the nozzle mounting base, which saves the material required for the protective cover 2 and achieves the protective effect, while preventing interference problems of parts caused by the large size of the protective cover 2.

[0035] Example 2: like Figure 5As shown, considering that the protection of the lubricating nozzle 1 in Embodiment 1 is achieved through the cooperation of the protective cover 2, bolt 4, and compression spring 3, this structure still has the problem that the protective cover 2 may rotate left and right due to vibration, thus causing the protection to fail. In order to make the device more perfect, this embodiment proposes a lubricating nozzle dustproof structure, linkage mechanism, and loader. Other structures are the same as in Embodiment 1, except that the protective cover 2 is provided with a stepped through hole composed of large and small holes; it also includes a lifting rod 9, the lower end of which is fixedly connected to a sealing gasket 8, and the lifting rod 9 and the small hole It can be adapted to plug and slide. The sealing gasket 8 can be adapted to plug and slide with the large hole. The sealing gasket 8 can be adapted to plug and slide with the countersunk hole 7. A tension spring 10 is provided between the lifting rod 9 and the protective cover 2. The tension spring 10 is sleeved on the lifting rod 9. When the lifting rod 9 is lifted, the bottom surface of the sealing gasket 8 is located inside the protective cover 2. The top of the lifting rod 9 is fixedly connected to the pull handle 11. The sealing gasket 8 can provide double protection for the lubricating oil nozzle 1, further preventing the entry of materials. At the same time, the sealing gasket 8 also has a limiting function, preventing the protective cover 2 from rotating left and right due to vibration, thus causing the protection to fail.

[0036] Example 3: In some embodiments, a linkage mechanism 5 includes a dustproof structure for the lubricating nozzle 1. The structural form of the linkage mechanism 5 can refer to the applicant's previously filed patents, such as linkage mechanism 5 (publication number CN206448919U) and engine linkage mechanism 5 with lubricating oil passage (publication number CN201439796U). The linkage mechanism 5 has a lubricating oil passage that is connected to the lubricating nozzle 1.

[0037] Example 4: In some embodiments, a loader includes a lubricating nozzle 1 dustproof structure and / or a linkage mechanism 5, wherein the loader includes a linkage mechanism 5 composed of a plurality of linkage mechanisms 5.

[0038] How to use: When lubricating oil needs to be added, lift the lifting rod 9, manually rotate the protective cover 2, and aim the lubricating oil gun at the lubricating oil nozzle 1 to add the oil. After adding the oil, rotate the protective cover 2 until the lifting rod 9 is automatically reset by the tension spring 10, thus completing the closure of the lubricating oil nozzle 1.

[0039] In summary, this device has a stable structure, is easy to operate, and can be quickly installed or disassembled without complicated tools. It effectively prevents materials from bumping into or clogging the lubricating nozzle 1, thus extending the service life of the structure.

[0040] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0041] Although the specific embodiments of the utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the utility model. Based on the technical solution of the utility model, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the utility model.

Claims

1. A dustproof structure for a lubricating nozzle, characterized in that, include: A nozzle mounting base is provided with a countersunk hole (7) and a lubricating nozzle (1) is provided in the countersunk hole (7). The top surface of the lubricating nozzle (1) does not extend beyond the surface of the nozzle mounting base to form a built-in hidden structure. The bottom surface of the lubricating nozzle (1) abuts against the countersunk hole (7) and the interior of the lubricating nozzle (1) is connected to the lubricating oil passage. There is a gap between the side wall of the lubricating nozzle (1) and the inner wall of the countersunk hole (7) for inserting a lubricating oil gun. The protective cover (2) is rotatably connected to the oil nozzle mounting base. The protective cover (2) can completely cover the countersunk hole (7) on the oil nozzle mounting base to shield the lubricating oil nozzle (1).

2. The dustproof structure for a lubricating nozzle according to claim 1, characterized in that, The oil nozzle mounting base has a blind hole (6) near the oil nozzle (1). The blind hole (6) has an internal thread and also includes a bolt (4). The bolt (4) is threadedly connected to the blind hole (6). A protective cover (2) is provided between the top of the bolt (4) and the oil nozzle mounting base. The protective cover (2) is rotatably sleeved on the bolt (4).

3. The dustproof structure for a lubricating nozzle according to claim 1, characterized in that, The oil nozzle mounting base has a blind hole (6) near the oil nozzle (1). A nut is fixedly connected in the blind hole (6), and a bolt (4) is also included. The bolt (4) is threadedly connected to the nut. A protective cover (2) is also provided between the top of the bolt (4) and the oil nozzle mounting base. The protective cover (2) is rotatably sleeved on the bolt (4).

4. A dustproof structure for a lubricating nozzle according to claim 2 or 3, characterized in that, A compression spring (3) is also provided between the protective cover (2) and the bolt (4). The compression spring (3) is sleeved on the bolt (4). One end of the compression spring (3) is connected to the protective cover (2), and the other end is connected to the bolt (4).

5. The dustproof structure for a lubricating nozzle according to claim 4, characterized in that, The compression spring (3) is made of stainless steel or spring steel.

6. A dustproof structure for a lubricating nozzle according to claim 2 or 3, characterized in that, The protective cover (2) has a stepped through hole consisting of a large hole and a small hole; it also includes a lifting rod (9), the lower end of which is fixedly connected to a sealing gasket (8). The lifting rod (9) can be fitted and slid with the small hole, the sealing gasket (8) can be fitted and slid with the large hole, and the sealing gasket (8) can be fitted and slid with the countersunk hole (7). A tension spring (10) is provided between the lifting rod (9) and the protective cover (2). The tension spring (10) is sleeved on the lifting rod (9). When the lifting rod (9) is lifted, the bottom surface of the sealing gasket (8) is inside the protective cover (2).

7. The dustproof structure for a lubricating nozzle according to claim 6, characterized in that, The protective cover (2) is a long rectangular shape.

8. The dustproof structure for a lubricating nozzle according to claim 6, characterized in that, The protective cover (2) does not extend beyond the sides of the nozzle mounting base.

9. A linkage mechanism (5), characterized in that, The dustproof structure for the lubricating nozzle as described in any one of claims 1-8.

10. A loader, characterized in that, Includes the dustproof structure for the lubricating nozzle as described in any one of claims 1-8 and / or the linkage mechanism (5) as described in claim 9.

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