Roadbed sand accumulation test device

Abstract

The utility model discloses a roadbed accumulated sand testing device, and belongs to the technical field of roadbed accumulated sand recovery. Comprising two baffles, a roadbed model is arranged in the baffles, a sand pile and an air supply fan are sequentially arranged on the front side of the roadbed model, a recycling frame is arranged on the rear side of the roadbed model, a feeding mechanism is arranged on the lower side of the recycling frame, one end of the feeding mechanism is connected with one baffle, and a material loading vehicle is arranged on the feeding mechanism. And a filter screen is arranged on the front side of the recovery frame. According to the roadbed accumulated sand testing device adopting the structure, the recycling frame is additionally arranged to directly recycle sand grains, so that the waste of the sand grains is reduced while the environmental pollution is avoided; the filter screen is arranged to filter impurities mixed in the sand grains due to outdoor factors, so that the recovery quality of the sand grains is improved; the feeding mechanism is arranged, the recycled sand grains are directly conveyed to the front side of the roadbed, and manual carrying is reduced; the test time is reduced, and the test efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of roadbed sand recovery, in particular to a roadbed sand testing device. Background Art

[0002] When conducting a desert roadbed sand accumulation model test, it is necessary to simulate the desert environment outdoors and use a fan to simulate the desert wind speed to observe the roadbed model being buried by sand, which causes a large amount of sand to be blown outside the baffle and onto the ground. How to efficiently recover these sands and recycle them has become an important issue that needs to be solved during the test. Traditional sand recovery methods, such as large-scale sweeping and filtering through a sieve with smaller pores, can achieve the purpose of recovery, but have the disadvantages of large workload, slow recovery speed and low work efficiency. This not only affects the progress of the test, but may also lead to a waste of sand resources. In order to improve this situation, a vacuum cleaner is often used to collect sand scattered on the ground to improve the recovery efficiency. However, when using a vacuum cleaner to collect, impurity particles originally existing on the ground will also be collected. After the collection is completed, the collected sand cannot be recycled, resulting in great waste. In view of the above problems, the utility model proposes a roadbed sand accumulation test device. Utility Model Content

[0003] The utility model aims to provide a roadbed sand accumulation test device, which solves the problems that the existing device cannot efficiently recover sand, has a large workload and low efficiency, and realizes the recycling of sand.

[0004] To achieve the above-mentioned purpose, the utility model provides a roadbed sand accumulation test device, comprising two baffles, a roadbed model is arranged inside the baffles, a sand pile and a blowing fan are arranged in sequence on the front side of the roadbed model, a recovery frame is arranged on the rear side of the roadbed model, a feeding mechanism is arranged on the lower side of the recovery frame, one end of the feeding mechanism is connected to one of the baffles, and a loading vehicle is arranged on the feeding mechanism.

[0005] Preferably, a filter screen is provided on the front side of the recovery frame, and the diameter of the filter screen is 0.25 mm.

[0006] Preferably, the feeding mechanism includes conveying frames on both sides, a plurality of groups of rollers arranged inside the conveying frames on both sides, and a conveyor belt wound around the rollers, and a driving motor for driving the rollers is arranged on the side wall of the conveying frame.

[0007] Preferably, the loading vehicle comprises a bin body and a loading frame, a pushing plate is mounted on the inner wall of the bin body via a pushing cylinder, and a rotating plate rotatably connected is arranged in the discharge port of the loading frame.

[0008] Preferably, a shield is installed on a side baffle connected to the feeding mechanism through a hinge shaft, and the position of the shield corresponds to the position where the sand pile is placed.

[0009] Therefore, compared with the prior art, the roadbed sand accumulation test device of the utility model has the following specific beneficial effects:

[0010] (1) A recycling frame is added to directly recycle sand, avoiding environmental pollution and reducing sand waste;

[0011] (2) A filter is provided on the front side of the recovery frame, which can directly filter out impurities mixed in the sand due to outdoor factors, thereby improving the recovery quality of the sand;

[0012] (3) A feeding mechanism is provided to directly deliver the recovered sand to the front side of the roadbed, reducing manual handling;

[0013] (4) Reduced test time and improved test efficiency.

[0014] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a partial structural schematic diagram of a roadbed sand accumulation test device of the utility model;

[0016] Figure 2 It is a structural schematic diagram of a feeding mechanism of a roadbed sand accumulation test device of the utility model;

[0017] Figure 3 It is a structural schematic diagram of a material loading vehicle of a roadbed sand accumulation test device of the utility model;

[0018] Figure 4 It is a schematic cross-sectional structure diagram of a material loading vehicle of a roadbed sand accumulation test device of the utility model;

[0019] Reference numerals

[0020] 1- baffle; 2- fan; 3- recovery frame; 4- transmission frame; 5- roller; 6- loading trolley; 7- warehouse body; 8- loading frame; 9- pushing cylinder; 10- pushing plate; 11- rotating plate; 12- shield plate. DETAILED DESCRIPTION

[0021] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] To simulate the desert environment, sand particles accumulate on the roadbed through movement, and wind is needed to blow the sand particles to observe the situation of sand particles burying the roadbed. This simulation test usually uses a wind speed of 6m / s and a baffle length of 3m. Since the particle sizes of sand particles vary, smaller particles may be blown farther due to excessive wind force. The movement direction of the sand particles is observed during the test.

[0023] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0024] Example

[0025] like Figure 1-4 As shown, the utility model discloses a roadbed sand accumulation test device, including two baffles 1, a roadbed model is built inside the baffles 1, a sand pile and a blower fan 2 are sequentially arranged on the front side of the roadbed model, a recovery frame 3 is arranged on the rear side of the roadbed model to recover the blown sand, and a filter screen with a diameter of 0.25mm is arranged on the front side of the recovery frame 3 to filter large particles of impurities. An opening is opened on one side wall of the recovery frame 3, and a feeding mechanism is arranged below the recovery frame 3, one end of the feeding mechanism is connected to one of the baffles 1, and a loading vehicle 6 is arranged on the feeding mechanism, and the loading vehicle 6 comes out of the opening to convey the recovered sand through the feeding mechanism.

[0026] The feeding mechanism is composed of multiple groups of rollers 5 arranged inside the conveying frame 4 and a conveyor belt wound outside the rollers 5. A driving motor for driving the rollers 5 is arranged on the side of the conveying frame 4. The driving motor is a forward and reverse motor. A support column is arranged at the bottom of the conveying frame 4 to connect with the ground. By setting up a feeding mechanism composed of the conveying frame 4, the rollers 5, the conveyor belt and the driving motor, the purpose of automatic feeding can be achieved, manual handling is reduced, feeding time is saved, and efficiency is effectively improved.

[0027] The loading vehicle 6 includes a bin body 7 and a loading frame 8. A push plate 10 is installed on the inner wall of the bin body 7 through a push cylinder 9, and a rotating plate 11 is provided in the discharge port of the loading frame 8. A shield plate 12 is installed on a side baffle 1 connected to the feeding mechanism through a hinge shaft, and the position of the shield plate 12 corresponds to the position where the sand pile is placed. By arranging a pushing mechanism composed of a pushing cylinder 9 and a push plate 10 in the loading mechanism, the sand inside the loading frame 8 can be quickly pushed out, eliminating the process of manually taking out the sand.

[0028] Working principle: Before the test begins, there is a fan 2 in front of the sand, and a sand pile of equal height and uniformity is piled in front of the roadbed. After the test begins, the sand is blown by the wind speed. At this time, the sand in front of the roadbed will fly in the channel built by the two baffles 1. The sand is blown to the back of the roadbed by the fan 2. Some sand with smaller particle size will be blown to the end of the built channel. Since the test is outdoors, there will be some impurities mixed in the sand. At this time, the 0.25mm filter net will catch the scattered sand for filtering, and then fall into the loading car 6 to obtain clean sand. The driving motor drives the roller 5 to drive the conveyor belt to rotate for feeding. The loading car 6 moves with the conveyor belt to the side of the baffle. After the end of the loading car 6 pushes the shield 12 open, the push cylinder 9 is started, and the piston rod of the push cylinder 9 extends to drive the push plate 10 to push the sand forward, and the sand falls to the original sand pile.

[0029] Therefore, the utility model adopts a roadbed sand accumulation test device with the above structure, which can directly recycle sand, avoid environmental pollution and reduce sand waste; it can realize the recycling of sand, reduce manual handling, shorten the test time and improve the test efficiency.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. A roadbed sand accumulation test device, comprising two baffles, a roadbed model is arranged inside the baffles, and a sand pile and a blower fan are arranged in sequence on the front side of the roadbed model, characterized in that: A recycling frame is arranged at the rear side of the roadbed model, a feeding mechanism is arranged at the lower side of the recycling frame, one end of the feeding mechanism is connected to one of the baffles, and a loading vehicle is arranged on the feeding mechanism.

2. A roadbed sand accumulation test device according to claim 1, characterized in that: A filter screen is arranged on the front side of the recycling frame, and the diameter of the filter screen is 0.25 mm.

3. A roadbed sand accumulation test device according to claim 2, characterized in that: The feeding mechanism includes conveying frames on both sides, a plurality of rollers arranged inside the conveying frames on both sides, and a conveyor belt wound outside the rollers. A driving motor for driving the rollers is arranged on the side wall of the conveying frame.

4. A roadbed sand accumulation test device according to claim 3, characterized in that: The loading vehicle comprises a bin body and a loading frame, a pushing plate is installed on the inner wall of the bin body via a pushing cylinder, and a rotating plate rotatably connected is arranged in the discharge port of the loading frame.

5. A roadbed sand accumulation test device according to claim 4, characterized in that: A shield is installed on a side baffle connected to the feeding mechanism through a hinge shaft, and the position of the shield corresponds to the position where the sand pile is placed.

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