Excavator bucket shaft dustproof ring

Abstract

The utility model discloses a dust-proof ring for a bucket shaft of an excavator, which belongs to the field of dust-proof rings and comprises a dust-proof ring body, a connecting groove is arranged in the middle of the outer surface of the dust-proof ring body, and a positioning component is arranged on the surface of the connecting groove. A worker installs the dustproof ring body on the surface of the excavator bucket shaft, then fixes the two ends of the binding rope on the surface of the rope winding column, and then enables the binding rope to tighten the middle of the dustproof ring body by rotating the rope winding column, so that the concave part of the dustproof ring body is tightly attached to the groove in the surface of the bucket shaft. Therefore, the clamping groove plays an accurate positioning role, the situation that the dustproof ring body is separated from the original installation position of the surface of the bucket shaft is greatly reduced, the dustproof stability of the dustproof ring body to the bucket shaft is guaranteed, the use efficiency of the excavator bucket shaft is improved, and the service life of the excavator bucket shaft is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of dustproof ring technology, specifically a dustproof ring for excavator bucket shafts. Background Technology

[0002] The bucket shaft is a key transmission component in the excavator's working device. It is a cylindrical shaft, and its main structure is simply a long shaft with structures at both ends for connecting other components. The bucket shaft is usually made of high-strength alloy steel, which has high yield strength and tensile strength and can withstand the huge forces generated by the bucket during digging.

[0003] Excavator bucket shafts typically have slots at both ends. The dust seals used are usually placed close to the side surface of the bucket shaft. However, with prolonged use, the dust seals may slide on the surface of the bucket shaft, causing them to detach from their original installation position. This results in the dust seals failing to effectively prevent dust from entering the bucket shaft connection, thus reducing the efficiency of the excavator bucket shaft and shortening its service life.

[0004] Therefore, this utility model provides a dustproof ring for excavator bucket shafts to solve the above-mentioned problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This utility model provides a dustproof ring for excavator bucket shafts, aiming to solve the existing problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] The dustproof ring body includes a connecting groove in the middle of its outer surface, and a positioning component is provided on the surface of the connecting groove.

[0010] The positioning component includes a restraining rope that is slidably fitted inside a connecting groove, one end of which is in a movable state. A bearing plate is fixedly installed on the outer surface of the dustproof ring body. A groove is formed on one side surface of the bearing plate. A spring seat is rotatably connected inside the groove. A connecting post is fixedly installed at one end of the spring seat. A rope-winding post is fixedly installed at one end of the connecting post. Rope-fixing holes are formed on both sides of the surface of the rope-winding post. A first sliding groove is formed inside the rope-winding post. The first sliding groove communicates with the rope-fixing holes. A pressing plate is slidably connected inside the first sliding groove. A threaded rod is rotatably connected to one side surface of the pressing plate. The threaded rod is threaded through and connected to the surface of the rope-winding post. Handles are fixedly installed in a circular array on the side surface of the rope-winding post.

[0011] As a preferred technical solution of this application, a retaining ring is fixedly installed on one side of the rope-winding column, and an annular groove is formed on the surface of the bearing plate, with the retaining ring rotatably connected to the inside of the annular groove.

[0012] As a preferred technical solution of this application, a limiting post is fixedly installed in an annular array on one side surface of the rope winding post, and a limiting hole is formed in an annular array on the side surface of the bearing plate, wherein the limiting post is adapted to the limiting hole.

[0013] As a preferred technical solution of this application, the dustproof ring body has placement grooves on both the upper and lower interiors, and elastic steel sheets are placed inside the placement grooves.

[0014] As a preferred technical solution of this application, a first connector and a second connector are respectively fixedly installed at the upper and lower ends of the dustproof ring body. The first connector is slidably connected to the inside of the second connector. Fixing members are connected to the side surfaces of the first connector and the second connector. A positioning post is fixedly installed inside the fixing member.

[0015] As a preferred technical solution of this application, each of the positioning posts has a threaded hole inside, and a limit screw is threadedly connected to the inside of every two threaded holes. One end of the limit screw is threadedly connected to a limit nut, and the limit nut is tightly attached to one side of the positioning post.

[0016] (III) Beneficial Effects

[0017] By using the positioning components, the operator installs the dustproof ring onto the surface of the excavator's bucket shaft. Then, the two ends of the restraint rope are fixed to the surface of the rope winding post. Rotating the rope winding post tightens the restraint rope around the center of the dustproof ring, ensuring the recessed part of the dustproof ring fits snugly against the groove on the bucket shaft surface. This precise positioning significantly reduces the likelihood of the dustproof ring slipping out of its original position on the bucket shaft, thus ensuring the stability of the dustproof ring's dust protection for the bucket shaft. This improves the efficiency of the excavator's bucket shaft and extends its service life. Furthermore, the tight fit between the bucket shaft's groove and the recessed center of the dustproof ring forms an effective sealing barrier, reducing the amount of dust entering the bucket shaft and protecting the bucket shaft and related components from wear. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a dustproof ring for an excavator bucket shaft;

[0019] Figure 2 This is a front view schematic diagram of a dustproof ring for an excavator bucket shaft;

[0020] Figure 3A partial structural schematic diagram of a positioning component for a dustproof ring on an excavator bucket shaft;

[0021] Figure 4 An exploded view of the positioning assembly of a dustproof ring for an excavator bucket shaft;

[0022] Figure 5 This is a schematic diagram of the limiting screw and limiting nut structure of a dustproof ring for an excavator bucket shaft.

[0023] In the picture:

[0024] 1. Dustproof ring body; 2. Positioning component; 201. Restraint rope; 202. Spring seat; 203. Connecting post; 204. Rope winding post; 205. Rope fixing hole; 206. Extrusion plate; 207. Threaded rod; 208. Snap ring; 209. Limiting post; 3. Elastic steel sheet; 4. First connecting piece; 5. Second connecting piece; 6. Positioning post; 7. Limiting screw; 8. Limiting nut. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides a dustproof ring for excavator bucket shaft, including a dustproof ring body 1. A connecting groove is provided in the middle of the outer surface of the dustproof ring body 1, and a positioning component 2 is provided on the surface of the connecting groove.

[0027] Positioning component 2 includes a restraining rope 201 that is slidably fitted inside a connecting groove. One end of the restraining rope 201 is in a movable state. A bearing plate is fixedly installed on the outer surface of the dustproof ring body 1. A groove is formed on one side surface of the bearing plate. A spring seat 202 is rotatably connected inside the groove. A connecting post 203 is fixedly installed on one end of the spring seat 202. A rope winding post 204 is fixedly installed on one end of the connecting post 203. Rope fixing holes 205 are formed on both sides of the surface of the rope winding post 204. A first sliding groove is formed inside the rope winding post 204. The first sliding groove communicates with the rope fixing holes 205. A pressing plate 206 is slidably connected to the part. A threaded rod 207 is rotatably connected to one side surface of the pressing plate 206. The threaded rod 207 is threaded through and connected to the surface of the rope winding post 204. A handle is fixedly installed in an annular array on one side surface of the rope winding post 204. A retaining ring 208 is fixedly installed on one side of the rope winding post 204. An annular groove is opened on the surface of the bearing plate. The retaining ring 208 is rotatably connected to the inside of the annular groove. A limiting post 209 is fixedly installed in an annular array on one side surface of the rope winding post 204. A limiting hole is opened in an annular array on the side surface of the bearing plate. The limiting post 209 is adapted to the limiting hole.

[0028] After the dustproof ring body 1 is installed, the worker inserts both ends of the restraint rope 201 into the rope fixing holes 205 on the surface of the rope winding post 204. Then, the threaded rod 207 is rotated to drive the extrusion plate 206 to slide inside the first groove. The extrusion plate 206 moves to both ends of the restraint rope 201 to squeeze and fix them, thereby fixing both ends of the restraint rope 201 inside the rope winding post 204. Then, by pulling the handle, the rope winding post 204 is slid to one side, causing the limiting post 209 on one side of the rope winding post 204 to disengage from the limiting hole. At the same time, the rope winding post 204 drives the connecting post 203 on one side to move and causes the spring seat 202 to stretch and deform. Then, under the guidance of the retaining ring 208, the rope winding post 204 rotates stably, thereby tightening the restraint rope 201 and causing the middle part of the dustproof ring body 1 to be concave. The spring seat 202 then uses its restoring force to drive the rope winding post 204 to slide back to its original position, causing the limiting post 209 on one side to re-insert into the limiting hole, thereby fixing the position of the rope winding post 204 and ensuring the stability of the middle part of the dustproof ring body 1 in a recessed state. The recessed part of the dustproof ring body 1 is in close contact with the groove on the surface of the bucket shaft, thus playing a precise positioning role and greatly reducing the possibility of the dustproof ring body 1 falling out of its original installation position on the surface of the bucket shaft. This ensures the stability of the dustproof ring body 1 in preventing dust from entering the bucket shaft, improves the utilization efficiency of the excavator bucket shaft, and extends the service life of the excavator bucket shaft. Furthermore, the tight fit between the groove of the bucket shaft and the recessed middle part of the dustproof ring forms an effective sealing barrier, thereby reducing the amount of dust entering the inside of the bucket shaft and protecting the bucket shaft and related components from wear.

[0029] The dustproof ring body 1 has placement slots on both the upper and lower interiors, and elastic steel sheets 3 are placed inside the placement slots.

[0030] By setting the elastic steel sheet 3, the vertical state of the upper and lower sides of the dustproof ring body 1 is kept stable, avoiding the concave part in the middle from affecting the dustproof performance of the upper and lower sides, and the upper and lower sides of the dustproof ring body 1 are always in contact with the surface of the bucket shaft.

[0031] The dustproof ring body 1 is fixedly installed with a first connector 4 and a second connector 5 at its upper and lower ends respectively. The first connector 4 is slidably connected to the inside of the second connector 5. The side surfaces of the first connector 4 and the second connector 5 are connected with fixing parts. The fixing parts are fixedly installed with positioning pins 6 inside. The positioning pins 6 are threaded holes. The internal threads of every two threaded holes are connected to limit screws 7. One end of the limit screws 7 is threaded to a limit nut 8. The limit nut 8 is tightly attached to one side of the positioning pin 6.

[0032] The first connector 4 drives one end of the dustproof ring body 1 to slide on the inner wall of the second connector 5, so that the dustproof ring body 1 can be adapted to bucket shafts of different sizes. Then, by rotating the limiting screw 7, the positioning pins 6 on both sides are fixed to each other, so that the dustproof ring body 1 is tightly attached to the surface of the bucket shaft. Then, the limiting nut 8 is used to ensure the position of the limiting screw 7, preventing the limiting screw 7 from rotating under external force, thus ensuring the dustproof stability of the dustproof ring body 1.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dust seal for a shovel boom, comprising a dust seal body (1), characterised in that: The outer surface of the dustproof ring body (1) is provided with a connecting groove in the middle, and the surface of the connecting groove is provided with a positioning assembly (2); The positioning assembly (2) includes a restraining rope (201) sleeved in the connecting groove, one end of the restraining rope (201) is in a movable state, the outer surface of the dustproof ring body (1) is fixedly provided with a bearing plate, one side surface of the bearing plate is provided with a groove, a spring seat (202) is rotatably connected in the groove, one end of the spring seat (202) is fixedly provided with a connecting column (203), one end of the connecting column (203) is fixedly provided with a rope winding column (204), the rope winding column (204) is provided with a rope fixing hole (205) on both sides of the surface, the rope winding column (204) is provided with a first sliding groove in the inside, the first sliding groove is in communication with the rope fixing hole (205), the first sliding groove is slidably connected with an extrusion plate (206), one side surface of the extrusion plate (206) is rotatably connected with a threaded rod (207), the threaded rod (207) is threadedly connected to the surface of the rope winding column (204), the rope winding column (204) is fixedly provided with a handle rod in an annular array on the side surface.

2. A dust seal for a bucket shaft of an excavator according to claim 1, characterised in that: One side of the rope winding column (204) is fixedly provided with a clasp (208), the surface of the bearing plate is provided with an annular groove, and the clasp (208) is rotatably connected in the annular groove.

3. The dust seal for a bucket shaft of an excavator as set forth in claim 1, wherein: The rope winding column (204) is fixedly provided with a limiting column (209) in an annular array on one side surface, and the bearing plate is provided with a limiting hole in an annular array on the side surface.

4. The dust seal for a bucket shaft of an excavating machine as set forth in claim 1, wherein: The dustproof ring body (1) is provided with a placing groove in the upper and lower interiors, and the placing groove is provided with an elastic steel sheet (3) in the inside.

5. The dust seal for a bucket shaft of an excavating machine as set forth in claim 1, wherein: The dustproof ring body (1) is fixedly provided with a first connecting piece (4) and a second connecting piece (5) at the upper and lower ends respectively, the first connecting piece (4) is slidably connected in the inside of the second connecting piece (5), the side surfaces of the first connecting piece (4) and the second connecting piece (5) are both connected with a fixing piece, and the fixing piece is fixedly provided with a positioning column (6) in the inside.

6. A dust seal for a bucket shaft of an excavator according to claim 5, characterised in that: The positioning column (6) is provided with a threaded hole in the inside, a limiting screw (7) is threadedly connected in every two threaded holes, one end of the limiting screw (7) is threadedly connected with a limiting nut (8), and the limiting nut (8) is tightly connected to one side of the positioning column (6).

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