Quick lime spreader

By designing a small quicklime spreader that combines with a tractor and using a screw conveyor to achieve precise, targeted spreading, the problem of large equipment being unsuitable for use at airports has been solved, achieving safe and efficient spreading within airports.

CN223766683UActive Publication Date: 2026-01-06HANGZHOU XIAOSHAN INT AIRPORT
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Patent Information

Application Number
CN202422970373.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2026-01-06
Estimated Expiration
2034-12-03

AI Technical Summary

Technical Problem

Existing large-scale quicklime spreading equipment is not suitable for use at airports due to its low efficiency, high operational difficulty, and significant safety risks. Furthermore, manual spreading poses safety hazards.

Method used

A small quicklime spreader was designed, including a hopper, a guide pipe, a drive shaft, and a spiral auger. It can be used in conjunction with a tractor to achieve precise point spreading. The spiral auger is used to evenly spray quicklime powder and the speed can be adjusted to adapt to different working environments.

Benefits of technology

It enables safe, efficient, and precise quicklime spreading within the airport, reducing safety risks for workers, minimizing the risk of equipment compacting the soil, improving the uniformity and continuity of spreading, and lowering procurement costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a quick lime spreader which comprises a hopper, a material guiding pipe is arranged at the bottom of the hopper, the top side of one end of the material guiding pipe is communicated with the bottom of the hopper, a discharging pipe is arranged on the bottom side of the other end of the material guiding pipe, the material guiding pipe is horizontal, the direction of the discharging pipe is vertically downward, and one end of a transmission shaft is connected with a right-angle steering gear. And a spiral auger is arranged on the inner end surface of the transmission shaft located in the material guide pipe. The device is simple in structure and convenient to use, can be fixedly matched with a tractor for use, can reduce the purchase cost, is relatively small and suitable for being used in an airport compared with large-scale engineering spreading equipment, can be accurately put at a fixed point, and is more convenient to use compared with the conventional manual spade spreading and mechanical equipment for spraying through rotation of a screw rod. The spreading amount in unit time is more than 5 times that of manual work, the fed quicklime powder is uniform and good in continuity, the rotating speed can be adjusted according to different working environments, and the instant spraying amount of the quicklime is optimized.
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Description

Technical Field

[0001] This utility model relates to the technical field of quicklime spreader, and in particular to a quicklime spreader. Background Technology

[0002] The (small) quicklime spreaders used at airports are mainly based on large-scale engineering machinery commonly used in agriculture and highway construction, such as quicklime spreaders / lime spreaders. These machines are widely used for large-scale application of powdery and granular materials in farmland and highways. However, because these large machines have limited functions and are expensive, they can only be used in farms or projects where spreading operations are frequent, and are not suitable for airport procurement. On the one hand, spreading operations within airports are relatively infrequent, mainly concentrated in the rainy season and bird migration period, making the use of specialized large equipment inefficient. On the other hand, spraying operations within airports are adjacent to key areas such as runways and taxiways, and large spreaders are difficult to operate and have a large turning radius, posing certain safety risks during the operation. Utility Model Content

[0003] The purpose of this invention is to provide a quicklime spreader in order to solve the above-mentioned problems.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] This utility model discloses a quicklime spreading machine, including a hopper. A guide pipe is provided at the bottom of the hopper. One end of the guide pipe is connected to the bottom of the hopper, and the other end of the guide pipe is provided with a discharge pipe. The guide pipe is horizontal, and the discharge pipe is vertically downward. A drive shaft is provided inside the guide pipe. One end of the drive shaft passes through the guide pipe to the outside of the guide pipe. A right-angle deflector is connected to one end of the drive shaft. A spiral auger is provided on the inner end surface of the drive shaft in the guide pipe.

[0006] As a preferred technical solution of the quicklime spreader of this utility model, a support frame is provided around the surface of the hopper. The support frame is U-shaped and supports the hopper and the guide pipe. The support frame is fixed to the tractor, and the hopper is fixed to the tractor.

[0007] As a preferred technical solution of the quicklime spreader of this utility model, the right-angle steering gear is connected to the transmission rod extending from the tractor.

[0008] In the preferred technical solution of the quicklime spreading machine of this utility model, the guide pipe extends more than 20cm out of the support frame.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] This invention has a simple structure and is easy to use. It can be used in conjunction with a tractor, which can reduce procurement costs. Compared with large-scale engineering spreading equipment, this invention is relatively small and suitable for use inside airports. It can accurately place the quicklime at fixed points. Compared with the previous manual shovel spreading, the mechanized equipment sprays the quicklime powder by rotating the screw rod. The quicklime powder is evenly and continuously distributed. The rotation speed can also be adjusted according to different working environments to optimize the instantaneous spraying volume of quicklime.

[0011] Airport operations are safer: When using a spreading machine, loading and unloading of chemicals and equipment debugging are completed in advance away from the core area of ​​the runway. On-site operations no longer require tools such as shovels and scissors, and there is no residue of chemicals or packaging bags. Therefore, the safety of operators and the risk of FOD (foreign object debris that may damage aircraft) are significantly reduced. The guide pipe extends more than 20 centimeters beyond the vehicle body, making it easier for tractors to drive on the edge of hardened pavement. Quicklime can also be spread on the soil surface through the discharge port, thereby reducing the impact of tractors on soil and lawns and preventing the introduction of FOD such as gravel into the core areas such as the runway and taxiway. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate 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, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a partial structural schematic diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the planar structure of the feed tube of this utility model;

[0015] In the diagram: 1. Hopper; 2. Guide pipe; 3. Discharge pipe; 4. Drive shaft; 5. Right-angle steering gear; 6. Spiral auger; 7. Support frame. Detailed Implementation

[0016] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0017] In the attached diagram, all identical reference numerals refer to the same components.

[0018] Example 1

[0019] like Figure 1-2As shown, the device includes a hopper 1, a guide pipe 2 at the bottom of the hopper 1, one end of the guide pipe 2 being connected to the bottom of the hopper 1, and a discharge pipe 3 at the bottom of the other end of the guide pipe 2. The guide pipe 2 is horizontal, and the discharge pipe 3 is vertically downward. A drive shaft 4 is installed inside the guide pipe 2, one end of the drive shaft 4 passing through the guide pipe 2 to the outside of the guide pipe 2, and a right-angle deflector 5 connected to one end of the drive shaft 4. A spiral auger 6 is installed on the inner end surface of the drive shaft 4 located in the guide pipe 2.

[0020] Furthermore, a support frame 7 is provided around the surface of the hopper 1. The support frame 7 is U-shaped and supports the hopper 1 and the guide pipe 2. The support frame 7 is fixed to the tractor, thus fixing the hopper 1 to the tractor.

[0021] The right-angle steering gear 5 is connected to the transmission rod extending from the tractor.

[0022] The feed tube 2 extends more than 720cm out of the support frame.

[0023] Specifically, the hopper 1 is fixed to the rear of the tractor by the support frame 7. A transmission rod is extended from the tractor's transmission rod, and the extended transmission shaft is connected to the right-angle steering gear 5. When the tractor is running, the transmission rod is rotated, which drives the transmission shaft 4 to rotate through the right-angle steering gear 5. When the transmission shaft 4 rotates, the spiral auger 6 inside the guide pipe 2 rotates, which pushes the quicklime inside the hopper and discharges it from the guide pipe 2 through the discharge pipe 3, thus dispersing the quicklime.

[0024] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quicklime spreader comprising a hopper (1), characterised in that, The bottom of the hopper (1) is provided with a guide pipe (2), one end of the guide pipe (2) is connected with the bottom of the hopper (1), the other end of the guide pipe (2) is provided with a discharge pipe (3), the guide pipe (2) is horizontal, the direction of the discharge pipe (3) is vertical downward, the inside of the guide pipe (2) is provided with a transmission shaft (4), one end of the transmission shaft (4) penetrates the guide pipe (2) to the outside of the guide pipe (2), one end of the transmission shaft (4) is connected with a right-angle steering gear (5), the inside end surface of the transmission shaft (4) is provided with a spiral auger (6).

2. A quicklime spreader according to claim 1, characterised in that The surface of the hopper (1) is surrounded by a supporting frame (7), the supporting frame (7) is U-shaped, the supporting frame (7) supports the hopper (1) and the guide pipe (2), and the supporting frame (7) is fixed with the tractor to fix the hopper (1) on the tractor.

3. A quicklime spreader according to claim 1, characterised in that The right-angle steering gear (5) is connected with a transmission rod extended from the tractor.

4. A quicklime spreader according to claim 3, characterised in that The guide pipe (2) extends out of the supporting frame (7) by more than 20 cm.