Road construction device

Abstract

The utility model relates to a road construction device which comprises a carriage, a screen tooth part and a screen plate part, the screen tooth part and the screen plate part are arranged on the front side of the carriage, the front side and the top side of the carriage are open, the screen tooth part comprises a middle shaft arranged in the width direction of the carriage, the middle shaft is in transmission connection with a driving mechanism, and two parallel baffles are arranged at the two ends of the middle shaft. A plurality of rake teeth are annularly arranged between the two baffles, rake shafts of the rake teeth are parallel to the middle shaft, the sieve plate part is arranged between the carriage and the sieve tooth part, and the sieve plate part comprises a plurality of plate bodies arranged at intervals in the width direction of the carriage; the rake tooth structure driven by the middle shaft is adopted, and scarified soil and stones can be effectively hooked up in the rotating process, slide along the inclined plate body and are finally thrown into a carriage. According to the device, the construction progress is accelerated, the labor cost is reduced, accurate screening of stones is ensured through staggered configuration of the teeth and the plate bodies, and the working efficiency and the stability of a foundation are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of road construction, in particular to a road construction device. Background Art

[0002] During road hardening and road renovation projects, the ground often contains numerous rocks, soil blocks, and gravel. These rocks pose a potential threat to foundation stability and must therefore be removed during road construction. The traditional method involves first loosening the ground with a rake, then relying on workers to manually sort through the rocks using rake tines. However, with the rapid development of automation technology, this manual screening method has become inefficient, severely hindering road construction progress.

[0003] For this reason, it is urgent to design a road construction device that can accelerate the efficiency of stone screening. Utility Model Content

[0004] In order to overcome the shortcomings of the above-mentioned background technology, the technical problem of the present invention is to provide a road construction device that can screen stones quickly, efficiently and accurately.

[0005] The technical implementation scheme of the present utility model is: a road construction device, including a carriage and a sieve tooth part and a sieve plate part arranged at the front side of the carriage, the front side and the top side of the carriage are open, the sieve tooth part includes a central axis arranged along the width direction of the carriage, the central axis is connected to the driving mechanism, two parallel baffles are provided at both ends of the central axis, a plurality of rake teeth are arranged in a ring between the two baffles, the rake shaft of the rake teeth is parallel to the central axis, the sieve plate part is arranged between the carriage and the sieve tooth part, the sieve plate part includes a plurality of plate bodies arranged at intervals along the width direction of the carriage, the plate bodies and the teeth of the rake teeth are staggered, when the sieve tooth part rotates with the central axis as the rotation axis, each tooth can pass through the gap between two adjacent plate bodies respectively, and the front side surface of the plate body is inclined uphill.

[0006] In addition, it is particularly preferred that the screen plate portion is connected to the carriage through a connecting assembly, which includes a connecting arm, a screw shaft and a nut, one end of the connecting arm is connected to the screen plate portion, and the other end is hinged to the carriage through the screw shaft, and the nut is connected to the front end of the screw shaft.

[0007] Furthermore, it is particularly preferred that three rake teeth are provided in an annular shape.

[0008] In addition, it is particularly preferred that the carriage includes a bottom plate, left and right side plates and a rear side plate, and the bottom plate is provided with long strip-shaped sieve holes running through it from top to bottom.

[0009] In addition, it is particularly preferred that the front end of the bottom plate is hinged to the front ends of the left and right side plates via a short axis, and the rear end of the bottom plate is connected to the rear ends of the left and right side plates via a plurality of tension springs.

[0010] In addition, it is particularly preferred that the upper end of the rear side panel is hinged to the upper ends of the left and right side panels, and the lower end of the rear side panel is connected to the bottom panel via a locking device.

[0011] In addition, it is particularly preferred that a material blocking plate is provided on the upper side of the front end of the bottom plate and is arranged along the width direction of the bottom plate.

[0012] This new system uses a central axis-driven rake structure that effectively picks up loose soil and rocks during rotation, allowing them to slide along the inclined plate and ultimately be thrown into the carriage. This device not only speeds up construction and reduces labor costs, but also ensures precise rock screening through the staggered arrangement of teeth and plates, improving work efficiency and foundation stability.

[0013] In addition, the screen plate can be flexibly articulated with the carriage by the cooperation of the connecting arm and the screw shaft, so that the screen plate can be adjusted to different terrains and construction requirements during use. The screw shaft and nut are used to tighten the screen plate.

[0014] In addition, the long strips of sieve holes running through the bottom plate help to further screen the stones after they are thrown into the carriage, ensuring that smaller stones and soil can fall through the sieve holes, avoiding excessive accumulation of stones, and improving the screening accuracy and loading efficiency of the carriage.

[0015] The front end of the base plate is hinged to the left and right side plates via short shafts, and the rear end is connected via multiple tension springs. Each time a stone is thrown, the tension springs and short shafts act to cause the base plate to float or vibrate during use, allowing for further screening. The upper end of the rear side plate is hinged to the left and right side plates, and the lower end is connected to the base plate via a locking device. This allows the rear side plate to be flexibly opened and closed during loading and unloading of stones, facilitating operation and maintenance.

[0016] Furthermore, a retaining plate located on the upper front end of the base plate effectively prevents stones from sliding out of the front end during the screening process, improving the containment and efficiency of the screening process. The retaining plate allows stones and soil to slide more smoothly along the inclined plate, helping to improve the accuracy of stone selection and construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the screen tooth part of the utility model.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the screen plate part of the utility model.

[0020] Figure 4It is a schematic diagram of the three-dimensional structure of the carriage and the material baffle of the present utility model.

[0021] Among them, the above-mentioned drawings include the following figure marks: 1. Carriage, 11. Floor, 12. Left and right side panels, 13. Rear side panel, 14. Wheel, 2. Screen tooth portion, 21. Middle shaft, 22. Driving mechanism, 23. Baffle, 24. Rake teeth, 25. Rake shaft, 26. Teeth, 3. Screen plate portion, 31. Plate body, 32. Connecting ribs, 4. Connecting assembly, 41. Connecting arm, 42. Screw shaft, 43. Nut, 5. Long strip sieve hole, 6. Short shaft, 7. Tension spring, 8. Locking device, 9. Baffle plate, 10. Traction arm. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figure 1 The road construction device shown in the figure includes a carriage 1, and a screen tooth portion 2 and a screen plate portion 3 provided on the front side of the carriage 1. The front side and the top side of the carriage 1 are open. The screen tooth portion 2 includes a central shaft 21, a driving mechanism 22, a baffle 23 and rake teeth 24. The central shaft 21 is arranged along the width direction of the carriage 1, and the two ends of the central shaft 21 are respectively rotatably connected to the ear plates extending from the front side of the carriage 1. The driving mechanism 22 can be a head that drives the carriage 1 forward, or it can be an independent driving motor. When the head is driven, the central shaft 21 is connected to the output end of the engine of the head through a pulley transmission. When the driving motor is used, the output of the driving motor is connected. The output end is connected to the central axis 21 through a coupling, and a baffle 23 is fixed at each end of the central axis 21. The baffle is located on the inner side of the two ear plates, and a plurality of rake teeth 24 are arranged in an annular manner between the baffles. When the central axis 21 rotates, the baffle drives each rake tooth 24 to rotate synchronously with the central axis 21 as the center. Specifically, the rake teeth 24 are composed of a rake shaft 25 and teeth 26. The two ends of the rake shaft 25 are respectively fixed on the baffle 23 close to it by rivets. The rake shaft 25 is parallel to the central axis 21, and several teeth 26 are evenly fixed along the axial direction of the rake shaft 25. During the rotation process, the rake teeth 24 can loosen the soil while hooking up stones.

[0024] The sieve plate portion 3 is arranged between the carriage 1 and the sieve tooth portion 2. The sieve plate portion 3 includes a plurality of plate bodies 31 arranged at intervals along the width direction of the carriage 1. The plurality of plate bodies 31 are connected by connecting ribs. The plate bodies 31 and the teeth 26 of the rake teeth 24 are staggered, that is, the rake teeth 24 can be placed in the gap formed between two adjacent plate bodies 31. When the sieve tooth portion 2 rotates with the central axis 21 as the rotation axis, each tooth 26 can pass through the gap between two adjacent plate bodies 31. At this time, the rotating teeth 26 and the plate bodies 31 form an intersection, and the carried stones are moved up along the intersection, and the stones are thrown out of the plate body 31 into the carriage 1 through the rapidly rotating teeth 26. In this way, accurate screening and picking of loose soil and stones on the road surface can be achieved.

[0025] In a preferred embodiment, the aforementioned rake teeth 24 are arranged in a ring with three teeth. When the number of the rake teeth 24 is set to three, sufficient gaps can be ensured for loosening the soil and screening stones during the rotation process. While satisfying the continuous loosening of the soil, the situation of soil adhesion and stones being stuck between the two rake teeth 24 is greatly reduced.

[0026] In addition, it is particularly important to note that the front side of the plate 31 is inclined upward. Figure 2 and Figure 3 The teeth 26 drive the stone to move from bottom to top along the front side of the inclined plate 31. When it moves to the upper end of the inclined surface, it will continue to move in the direction of the inclined surface due to inertia. Since the teeth 26 are separated from the plate 31, the stone enters the carriage 1 in a parabolic trajectory under the action of gravity.

[0027] like Figure 1 and Figure 3 As shown, the sieve plate portion 3 is connected to the carriage 1 via a connecting assembly 4, which includes a connecting arm 41, a screw shaft 42, and a nut 43. One end of the connecting arm 41 is connected to the sieve plate portion 3, specifically to the plate body 31 on the side of the sieve plate portion 3. The other end of the connecting arm 41 is hinged to the carriage 1 via a screw shaft 42. The front end of the screw shaft 42 is connected to a nut 43, and the rear end is fixed to the protruding ear plate of the carriage 1. The angle and height of the sieve plate portion 3 can be adjusted through the connecting assembly 4, so that the sieve plate portion can adapt to different terrains and construction requirements during use.

[0028] like Figure 4As shown, in a preferred embodiment, the carriage 1 comprises a bottom plate 11, left and right side plates 12, and a rear side plate 13. The bottom plate 11 is provided with elongated sieve holes 5 extending vertically therethrough. When rocks mixed with soil enter the carriage 1, the shaking of the carriage body as it moves forward and the impact of the newly entered mixed rocks on the bottom plate 1 can further filter the soil out of the carriage 1 through the elongated sieve holes 5. Furthermore, the front end of the bottom plate 11 is hinged to the front ends of the left and right side plates 12 via a short shaft 6, and the rear end of the bottom plate 11 is connected to the rear ends of the left and right side plates 12 via a plurality of tension springs 7. This design further reduces the vibration or shaking of the bottom plate 11. As the carriage 1 moves forward, uneven ground conditions and the impact of rocks hitting the bottom plate 11 during rock screening can cause the bottom plate 11 to vibrate more than the left and right side plates 12 and rear side plate 13, further improving the efficiency of the screening process. This also prevents excessive accumulation of mixed rocks from affecting the loading efficiency of the carriage.

[0029] To facilitate loading and unloading of rocks, the upper ends of the rear side panels 13 of the device are hinged to the upper ends of the left and right side panels 12, and the lower ends of the rear side panels 13 are connected to the bottom panel 11 via a locking device 8. By loosening the locking device 8, the locked state of the rear side panels 13 and the bottom panel 11 can be released, allowing the rear side panels 13 to move around their upper ends and the bottom panel 11 to move around the short axle 6, thereby opening the rear side of the carriage 1 for quick unloading.

[0030] In a preferred embodiment, in order to prevent stones from sliding out of the front end of the bottom plate during the screening process, a baffle plate 9 arranged along the width direction of the bottom plate 11 is provided on the upper side of the front end. In addition, the baffle plate 9 can also enable stones to slide better along the inclined plate body when entering the carriage 1.

[0031] The above-described embodiments merely represent preferred embodiments of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications, improvements, and substitutions without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A road construction device, characterized by: The invention comprises a carriage (1) and a sieve tooth portion (2) and a sieve plate portion (3) arranged on the front side of the carriage (1); the front side and the top side of the carriage (1) are open; the sieve tooth portion (2) comprises a central axis (21) arranged along the width direction of the carriage (1); the central axis (21) is in transmission connection with a driving mechanism (22); two parallel baffles (23) are arranged at both ends of the central axis (21); a plurality of rake teeth (24) are arranged in an annular shape between the two baffles (23); the rake shafts (25) of the rake teeth (24) are arranged in an annular shape; ) is parallel to the central axis (21), the sieve plate portion (3) is arranged between the carriage (1) and the sieve tooth portion (2), the sieve plate portion (3) includes a plurality of plate bodies (31) arranged at intervals along the width direction of the carriage (1), the plate bodies (31) and the teeth (26) of the rake teeth (24) are arranged in a staggered manner, and when the sieve tooth portion (2) rotates with the central axis (21) as the rotation axis, each tooth (26) can pass through the gap between two adjacent plate bodies (31); the front side of the plate body (31) is inclined upward.

2. The road construction device according to claim 1, characterized in that: The sieve plate portion (3) is connected to the carriage (1) via a connecting assembly (4), wherein the connecting assembly (4) comprises a connecting arm (41), a screw shaft (42) and a nut (43). One end of the connecting arm (41) is connected to the sieve plate portion (3), and the other end is hinged to the carriage (1) via the screw shaft (42). The nut (43) is connected to the front end of the screw shaft (42).

3. The road construction device according to claim 1, characterized in that: Three rake teeth (24) are arranged in an annular shape.

4. The road construction device according to claim 1, characterized in that: The carriage (1) comprises a bottom plate (11), left and right side plates (12) and a rear side plate (13); the bottom plate (11) is provided with a long strip sieve hole (5) running through it from top to bottom.

5. The road construction device according to claim 4, characterized in that: The front end of the bottom plate (11) is hinged to the front ends of the left and right side plates (12) via a short shaft (6), and the rear end of the bottom plate (11) is connected to the rear ends of the left and right side plates (12) via a plurality of tension springs (7).

6. The road construction device according to claim 5, characterized in that: The upper end of the rear side panel (13) is hinged to the upper ends of the left and right side panels (12), and the lower end of the rear side panel (13) is connected to the bottom panel (11) via a locking device (8).

7. The road construction device according to claim 6, characterized in that: A material blocking plate (9) is provided on the upper side of the front end of the bottom plate (11) and is arranged along the width direction thereof.

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