A skid bottom device for a loader bucket bottom

By installing a pressure-resistant wheel with a moving and rotating mechanism at the bottom of the loader bucket, the problem of loader bottom scooping is solved, stone powder mixing is reduced, and concrete quality and operational adaptability are ensured.

CN224412664UActive Publication Date: 2026-06-26RIZHAO TRANSPORTATION PLANNING & DESIGN INST CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RIZHAO TRANSPORTATION PLANNING & DESIGN INST CO LTD
Filing Date
2025-08-05
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing loaders scrape the bottom during loading, resulting in a large amount of stone powder smaller than 0.075mm being mixed into the concrete, affecting the concrete quality, strength, and durability.

Method used

A support plate is installed at the bottom of the loader bucket. Below the support plate are a moving mechanism and a rotating mechanism. The moving mechanism is driven by a servo motor to drive a bidirectional screw to slide a slider on a guide rail. The rotating mechanism is driven by a cylinder to drive a rack and pinion to rotate a rotating shaft. Multiple anti-compression wheels can be adjusted in position and angle to prevent the bucket from directly contacting the bottom of the crushed stone bin of the mixing plant.

Benefits of technology

This effectively reduced the amount of stone powder mixed in, ensuring that the concrete raw material mix ratio met the design standards, and improved the loader's operational adaptability and concrete quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to loader technical field, concretely relates to a kind of bottom device for preventing shovel for loader shovel bottom, including support plate, support plate detachably connected at the bottom of loader shovel, the mobile mechanism is installed in the below of support plate, the rotating mechanism is installed in the below of mobile mechanism, the multiple compression wheels are installed in the below of rotating mechanism, relative to prior art, the utility model is formed stable support to shovel by compression wheel, avoid shovel direct contact mixing station broken stone bin bottom, reduce the stone powder less than 0.075mm particle when shoveling material from source, and by the cooperation of mobile mechanism and rotating mechanism, can make shovel only take upper layer qualified broken stone in bin, effectively control stone powder mixing amount, ensure that concrete raw material mix proportion meets design standard, lay foundation for concrete quality.
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Description

Technical Field

[0001] This utility model belongs to the field of loader technology, specifically relating to an anti-bottom-scraping device for the bottom of a loader bucket. Background Technology

[0002] Currently, when storing crushed stone in the aggregate bins of the current construction project's mixing plant, a large amount of stone powder (particles smaller than 0.075mm) accumulates at the bottom. Since the existing loaders scrape the bottom when loading, a large amount of stone powder is used in the concrete mixing, affecting the quality of the concrete and causing the concrete's strength and durability to fail to meet the requirements. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides an anti-bottom-scraping device for the bottom of a loader bucket.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an anti-scraping device for the bottom of a loader bucket, comprising a support plate, the support plate being detachably connected to the bottom of the loader bucket, a moving mechanism being installed below the support plate, a rotating mechanism being installed below the moving mechanism, and multiple anti-pressure wheels being installed below the rotating mechanism.

[0005] Preferably, the moving mechanism includes two guide rails and two servo motors. The two guide rails are installed below the support plate, and the two servo motors are respectively installed at the ends of the two guide rails. The output ends of the two servo motors are detachably connected to bidirectional screws. Two sliders are fitted on the bidirectional screws. The two sliders are arranged opposite to each other and are slidably connected to the guide rails.

[0006] Preferably, the rotating mechanism includes four rotating components and two driving components. Each of the four rotating components includes two connecting plates, both of which are installed below the slider. Each of the two connecting plates has a through hole on its side, and a bearing is installed in the through hole. A rotating shaft is installed in the bearing, and a pressure-resistant wheel is installed on the outer periphery of the rotating shaft. The two driving components are installed between the sliders on the same side, and the driving components are drivenly connected to the rotating shaft.

[0007] Preferably, both drive components include a second connecting plate and a connecting shaft. The second connecting plate is installed between sliders on the same side, and the connecting shaft is installed between a first rotating shaft above the sliders on the same side. A gear is installed on the outer periphery of the connecting shaft, and the gear meshes with a rack. A first cylinder is installed on the second connecting plate, and the piston rod end of the first cylinder is detachably connected to the rack.

[0008] Preferably, a connecting plate three is installed above the rack, and the piston rod end of the cylinder one is detachably connected to the connecting plate three.

[0009] Preferably, a connector is installed on the outer periphery of the rotating shaft, and the pressure-resistant wheel is installed below the connector.

[0010] Preferably, both the moving mechanism and the rotating mechanism are communicatively connected to the loader's control system.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] (1) Existing loaders will scrape the bottom when loading materials, while this utility model has a moving mechanism installed below the support plate, a rotating mechanism installed below the moving mechanism, and multiple anti-compression wheels installed below the rotating mechanism. The anti-compression wheels form a stable support for the bucket, avoiding direct contact between the bucket and the bottom of the crushed stone bin of the mixing plant. This reduces the amount of stone powder smaller than 0.075mm brought in when scooping materials from the source. Furthermore, through the cooperation of the moving mechanism and the rotating mechanism, the bucket can only take qualified crushed stone from the upper layer of the bin, effectively controlling the amount of stone powder mixed in, ensuring that the concrete raw material mix ratio meets the design standards, and laying the foundation for concrete quality.

[0013] (2) The moving mechanism can drive the bidirectional screw through the servo motor to drive the slider to slide on the guide rail, thereby realizing the flexible adjustment of the lateral position of the anti-pressure wheel; the rotating mechanism can drive the rack and pinion to mesh with the gear through the cylinder, thereby driving the rotating shaft to rotate and completing the precise adjustment of the angle of the anti-pressure wheel.

[0014] (3) Through the coordinated work of the moving mechanism and the rotating mechanism, the position and angle of the anti-compression wheel can be quickly adjusted according to the hardness, flatness and other conditions of different working surfaces, so as to ensure that the bucket can be effectively supported in complex and diverse working environments and improve the work adaptability of the loader. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below:

[0016] Figure 1 This is a front view of the anti-scraping device for the bottom of a loader bucket provided in Embodiment 1;

[0017] Figure 2 This is a schematic diagram of an anti-scraping device used at the bottom of a loader bucket;

[0018] Figure 3 A bottom view of an anti-scraping device used at the bottom of a loader bucket;

[0019] Figure 4 This is a diagram showing the internal structure of the connection device between the concrete guardrail and the corrugated beam guardrail.

[0020] Figure 5 for Figure 4 Enlarged view of point A.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Guide rail; 2. Slider; 3. Bidirectional screw; 4. Connecting plate one; 5. Rotating shaft one; 6. Connecting piece; 7. Anti-pressure wheel; 8. Connecting shaft; 9. Gear; 10. Connecting plate two; 11. Cylinder one; 12. Connecting plate three; 13. Support plate; 14. Servo motor; 15. Rack. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1

[0026] The following is in conjunction with the appendix Figure 1-5 To further describe this utility model, an anti-bottom-scraping device for the bottom of a loader bucket, such as... Figures 1-4 As shown, it includes a support plate 13, which is detachably connected to the bottom of the loader bucket. A moving mechanism is installed below the support plate 13, a rotating mechanism is installed below the moving mechanism, and multiple anti-compression wheels 7 are installed below the rotating mechanism.

[0027] like Figures 1-4 As shown, the moving mechanism includes two guide rails 1 and two servo motors 14. Both guide rails 1 are installed below the support plate 13. The two servo motors 14 are respectively installed at the ends of the two guide rails 1. The output ends of the two servo motors 14 are detachably connected to bidirectional screws 3. Two sliders 2 are fitted on the bidirectional screws 3. The two sliders 2 are arranged opposite to each other and are slidably connected to the guide rails 1.

[0028] like Figures 1-4 As shown, the rotating mechanism includes four rotating components and two driving components. Each of the four rotating components includes two connecting plates 4, which are installed below the slider 2. Each of the two connecting plates 4 has a through hole on its side, and a bearing is installed in the through hole. A rotating shaft 5 is installed in the bearing, and a pressure wheel 7 is installed on the outer periphery of the rotating shaft 5. The two driving components are installed between the sliders 2 on the same side, and the driving components are drivenly connected to the rotating shaft 5.

[0029] like Figures 1-5As shown, both drive components include a second connecting plate 10 and a connecting shaft 8. The second connecting plate 10 is installed between the sliders 2 on the same side, and the connecting shaft 8 is installed between the first rotating shaft 5 above the sliders 2 on the same side. A gear 9 is installed on the outer periphery of the connecting shaft 8, and the gear 9 meshes with a rack 15. A cylinder 11 is installed on the second connecting plate 10, and the piston rod end of the cylinder 11 is detachably connected to the rack 15.

[0030] like Figures 1-5 As shown, a connecting plate 3 12 is installed above the rack 15, and the piston rod end of the cylinder 11 is detachably connected to the connecting plate 3 12.

[0031] like Figures 1-4 As shown, a connector 6 is installed on the outer periphery of the rotating shaft 5, and a pressure wheel 7 is installed below the connector 6.

[0032] In this invention, both the moving mechanism and the rotating mechanism are communicatively connected to the loader's control system.

[0033] In this invention, both the servo motor 14 and the cylinder 11 are communicatively connected to the control system of the loader.

[0034] In this invention, the two servo motors 14 can be synchronously controlled by the loader's control system, and the two cylinders 11 can be synchronously controlled by the loader's control system.

[0035] In this utility model, the two cylinders 11 are arranged opposite to each other, and the connecting plate 12 is installed on the rack 15 near the corresponding cylinder 11.

[0036] The working principle of this utility model is as follows: Two servo motors 14 are synchronously controlled by the loader control system. After starting, their output ends drive the bidirectional screw 3 to rotate. Since the two sliders 2 cooperate with the bidirectional screw 3 and are set relative to each other, and are slidably connected to the guide rail 1, when the bidirectional screw 3 rotates, the two sliders 2 will slide relatively close or far away on the guide rail 1, thereby adjusting the lateral position of the anti-pressure wheel 7 to adapt to different operating requirements. The cylinder 11 is synchronously controlled by the loader control system. When the piston rod of the cylinder 11 extends or retracts, it will drive the rack 15 to move through the connecting plate 3 12. The rack 15 meshes with the gear 9 on the outer periphery of the connecting shaft 8, thereby driving the connecting shaft 8 to rotate. The connecting shaft 8 is connected to the rotating shaft 5 above the slider 2 on the same side. Therefore, the rotation of the connecting shaft 8 will drive the rotating shaft 5 to rotate, ultimately realizing the angle adjustment of the anti-pressure wheel 7.

[0037] In actual operation, the moving mechanism and the rotating mechanism work together under the coordinated control of the loader control system. The moving mechanism adjusts the lateral position of the anti-pressure wheel 7, and the rotating mechanism adjusts the angle of the anti-pressure wheel 7, so that multiple anti-pressure wheels 7 can contact the ground at appropriate positions and angles according to the working ground conditions, providing effective support for the loader bucket, thereby avoiding direct hard contact between the bottom of the bucket and the ground, and achieving the purpose of preventing bottom scooping.

[0038] In this invention, the above process can be adjusted according to the on-site conditions.

[0039] As the technical solution of this utility model, the provided hardware configuration is merely to facilitate the implementation of specific braking control based on the hardware facilities. How to specifically implement braking control and the braking control method are not the technical problems to be solved or the objects of protection of this utility model. Furthermore, the communication methods between the devices all adopt existing communication methods, which are not the focus of this application.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A skid bottom device for a loading shovel bucket bottom, comprising a support plate (13), characterized in that, The support plate (13) is detachably connected to the bottom of the loader bucket. A moving mechanism is installed below the support plate (13), a rotating mechanism is installed below the moving mechanism, and multiple anti-pressure wheels (7) are installed below the rotating mechanism.

2. The anti-scraping device for the bottom of a loader bucket according to claim 1, characterized in that, The moving mechanism includes two guide rails (1) and two servo motors (14). The two guide rails (1) are installed below the support plate (13). The two servo motors (14) are respectively installed at the ends of the two guide rails (1). The output ends of the two servo motors (14) are detachably connected to a bidirectional screw (3). The bidirectional screw (3) is fitted with two sliders (2). The two sliders (2) are arranged opposite to each other. The two sliders (2) are slidably connected to the guide rails (1).

3. The anti-bottom-scraping device for the bottom of a loader bucket according to claim 2, characterized in that, The rotating mechanism includes four rotating components and two driving components. Each of the four rotating components includes two connecting plates (4). Both connecting plates (4) are installed below the slider (2). Both connecting plates (4) have through holes on their sides. A bearing is installed in the through hole. A rotating shaft (5) is installed in the bearing. The pressure wheel (7) is installed on the outer periphery of the rotating shaft (5). The two drive components are mounted between the sliders (2) on the same side, and the drive components are driven to rotate on the shaft (5).

4. The anti-scraping device for the bottom of a loader bucket according to claim 3, characterized in that, Both drive components include a second connecting plate (10) and a connecting shaft (8). The second connecting plate (10) is installed between sliders (2) on the same side. The connecting shaft (8) is installed between a first rotating shaft (5) above the sliders (2) on the same side. A gear (9) is installed on the outer periphery of the connecting shaft (8). The gear (9) meshes with a rack (15). A first cylinder (11) is installed on the second connecting plate (10). The piston rod end of the first cylinder (11) is detachably connected to the rack (15).

5. The anti-scraping device for the bottom of a loader bucket according to claim 4, characterized in that, A connecting plate three (12) is installed above the rack (15), and the piston rod end of the cylinder one (11) is detachably connected to the connecting plate three (12).

6. The anti-scraping device for the bottom of a loader bucket according to claim 3, characterized in that, A connector (6) is installed on the outer periphery of the rotating shaft (5), and the pressure wheel (7) is installed below the connector (6).

7. The anti-scraping device for the bottom of a loader bucket according to claim 1, characterized in that, Both the moving mechanism and the rotating mechanism are communicatively connected to the loader's control system.