Roadbed compaction device for solidifying expansive soil

Abstract

The utility model discloses a solidified expansive soil subgrade compaction device, including rectangular fixed mount, threaded rod, compaction roller and slide bar, threaded rod is fixedly connected on the rectangular fixed mount through threaded rod bearing, the thread at threaded rod both ends is arranged symmetrically, the center of slide bar is provided with compaction roller bearing, the compaction roller bearing is fixed on the fixed mount through the threaded rod bearing, and the compaction roller bearing is fixed on the fixed mount through the threaded rod bearing. A compacting roller linkage rod is fixedly installed on an inner ring of the compacting roller bearing, an outer ring of the compacting roller bearing is fixedly connected with the sliding rod, one end of the threaded rod extends out of the fixing frame and is provided with a rotating disc, the two ends of the threaded rod are each provided with a fixing piece, and each fixing piece is arranged outside the sliding rod. The fixing pieces rotate on the threaded rod, so that the fixing pieces are attached to the sliding rod, the symmetrically designed fixing pieces lock the sliding rod, and reverse loosening of the sliding rod is avoided.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment technology, and in particular to a roadbed compaction device for solidifying expansive soil. Background Technology

[0002] Expansive soil compaction refers to the process of compacting expansive soil that constitutes the roadbed during road construction. Its purpose is to ensure that the roadbed has sufficient bearing capacity and stability to support the upper pavement structure and traffic loads, and to prevent road damage caused by uneven settlement or insufficient strength of the roadbed. In the prior art, Chinese patent CN221276251U discloses a roadbed compaction device for solidifying expansive soil. This patent solves the technical problem that the fixing frame of the existing compaction device is not removable, requiring the replacement of roadbed compaction devices of different weights when different compaction degrees or shorter operation times are needed. While this design has some applicability, it lacks a protective design for fixing the adjusted compaction roller. This leads to the bolt loosening due to road surface vibrations during operation, causing the compaction roller to detach from the fixing device, resulting in a safety accident and posing a safety hazard. Utility Model Content

[0003] This invention addresses the technical problem of adjusted compaction rollers falling off during construction work by providing a roadbed compaction device for solidified expansive soil that has the function of securing the compaction roller and can be used safely.

[0004] To solve the above-mentioned technical problems, this utility model provides a roadbed compaction device for solidifying expansive soil, including a rectangular fixed frame, a threaded rod, and a sliding rod. The threaded rod is fixedly connected to the rectangular fixed frame via a threaded rod bearing. The threads at both ends of the threaded rod are symmetrically arranged. The sliding rod has a threaded through hole that matches the threaded rod. The sliding rod is threadedly connected to the threaded rod. A compaction roller bearing is located at the center of the sliding rod. A compaction roller linkage rod is fixedly installed on the inner ring of the compaction roller bearing. The outer ring of the compaction roller bearing is fixedly connected to the sliding rod. A rotating disk is also provided at one end of the threaded rod. The rotating disk is fixedly connected to the threaded rod and is located on the outside of the rectangular fixed frame. The device also includes a compaction roller. A fixing groove is provided at the center of each side of the compaction roller. The inner diameter of the fixing groove is larger than the outer diameter of the compaction roller linkage rod to ensure that the compaction roller linkage rod can extend into the fixing groove and be tightly connected to the compaction roller. A fixing member is provided at each end of the threaded rod, and each fixing member is located on the outside of the sliding rod.

[0005] Preferably, in the above technical solution, each of the fixing components has an internal thread that matches the external threads at both ends of the threaded rod.

[0006] Preferably, in the above technical solution, one end of the sliding rod is provided with a T-shaped sliding wing, and the other end is provided with a through hole. The fixed rod on one side of the rectangular fixed frame is provided with a T-shaped groove that matches the T-shaped sliding wing, so as to ensure that the sliding rod can slide horizontally on the rectangular fixed frame.

[0007] Preferably, in the above technical solution, two connecting blocks are provided on the rod on the other side of the rectangular fixing frame opposite to the T-shaped groove. A connecting rod is fixedly connected to the connecting block. A lead screw is provided at each end of the connecting rod. One end of the lead screw is fixedly connected to the connecting rod. The outer diameter of the lead screw is smaller than the diameter of the through hole to ensure that the lead screw can pass through the through hole on the sliding rod.

[0008] Preferably, in the above technical solution, the lead screw is provided with a wing nut, and the internal thread of the wing nut matches the external thread of the lead screw.

[0009] Preferably, in the above technical solution, the wing nut is disposed on the outside of the sliding rod.

[0010] Compared with the prior art, this utility model has the following advantages: By rotating the fixing member on the threaded rod, the fixing member is made to fit against the sliding rod. The symmetrically designed fixing member locks the sliding rod in this way, preventing the sliding rod from loosening in the opposite direction. The sliding rod is further fixed by the screw on the connecting rod cooperating with the wing nuts on both sides, preventing the compaction roller connected to the sliding rod from loosening or falling off. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of a roadbed compaction device for solidifying expansive soil according to the present invention.

[0012] Figure 2 This is a schematic diagram of the structure of the T-shaped groove and T-shaped sliding wing in the roadbed compaction device for solidifying expansive soil according to this utility model;

[0013] Figure 3 for Figure 1 Enlarged view of the central fixing component and threaded rod;

[0014] Figure 4 for Figure 1 Enlarged view of the wing nut and lead screw.

[0015] Explanation of key figure labels:

[0016] 1-Rectangular fixing frame, 2-Threaded rod, 3-Sliding rod, 4-Fixing component, 5-Connecting rod, 6-Screw rod, 7-Compactor roller, 8-Wing nut, 11-Threaded rod bearing, 12-T-groove, 13-Connecting block, 21-Thread, 22-Rotating disk, 31-Compactor roller bearing, 32-Threaded through hole, 33-T-shaped sliding wing, 34-Through hole, 35-Compactor roller linkage rod, 71-Fixing groove. Detailed Implementation

[0017] 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.

[0018] like Figures 1-4 As shown, this utility model discloses a roadbed compaction device for solidifying expansive soil, comprising a rectangular fixing frame 1, a threaded rod 2, and a sliding rod 3. The threaded rod 2 is fixedly connected to the rectangular fixing frame 1 via a threaded rod bearing 11. The threads at both ends of the threaded rod 2 are symmetrically arranged. The sliding rod 3 has a threaded through hole 32 that matches the threaded rod 2. The sliding rod 3 is threadedly connected to the threaded rod 2. A compaction roller bearing 31 is provided in the center of the sliding rod 3. A compaction roller linkage rod 35 is fixedly installed on the inner ring of the compaction roller bearing 31. The outer ring of the compaction roller bearing 31 is fixedly connected to the sliding rod 3. The threaded rod 2... The rectangular fixing frame 1 extends from one end and is provided with a rotating disk 22. The rotating disk 22 is fixedly connected to the threaded rod 2 and is located outside the rectangular fixing frame 1. It also includes a compaction roller 7, with fixing grooves 71 at the center of each side of the compaction roller 7. The inner diameter of the fixing grooves 71 is larger than the outer diameter of the compaction roller linkage rod 35 to ensure that the compaction roller linkage rod 35 can extend into the fixing grooves 71 and be tightly connected to the compaction roller 7. Each end of the threaded rod 2 is provided with a fixing member 4, each fixing member 4 being located outside the sliding rod 3, and the two fixing members 4 are symmetrically designed. Each fixing member 4 has an internal thread that matches the external threads at both ends of the threaded rod 2. During operation, the fixing member 4 can be rotated and moved towards the sliding rod 3 until it fits and fixes the sliding rod 3.

[0019] In this embodiment, one end of the sliding rod 3 is provided with a T-shaped sliding wing 33, and the other end is provided with a through hole 34. A T-shaped groove 12 matching the T-shaped sliding wing 33 is provided on one side of the rectangular fixing frame 1 to ensure that the sliding rod 3 can slide horizontally on the rectangular fixing frame 1. During disassembly and installation, the sliding rod 3 has a supporting part, and only the sliding rod 3 needs to be moved horizontally, simplifying the disassembly and installation process and making it convenient and labor-saving. On the other side of the rectangular fixing frame 1 opposite to the T-shaped groove 12, two connecting blocks 13 are provided. Connecting rods 5 are fixedly connected to the connecting blocks 13. Each end of the connecting rod 5 is provided with a lead screw 6. One end of the lead screw 6 is fixedly connected to the connecting rod 5. The outer diameter of the lead screw 6 is smaller than the diameter of the through hole 34 to ensure that the lead screw 6 can pass through the through hole 34 on the sliding rod 3. A wing nut 8 is provided on the lead screw 6, and the internal thread of the wing nut 8 matches the external thread of the lead screw 6. The wing nut 8 is located on the outside of the sliding rod 3. Rotate the wing nut 8 to move it toward the sliding rod 3 until the wing nut 8 further locks and fixes the sliding rod 3.

[0020] When using the fixed compaction roller, first loosen the rotating disk 22, and simultaneously move the sliding rods 3 on both sides of the compaction roller toward the compaction roller. When the compaction roller linkage rod 35 is fully inserted into the fixed groove 71 of the compaction roller, tighten the fixing parts 4 on both sides of the sliding rod 3 until the fixing parts 4 are tightly fitted with the sliding rod 3, thereby locking the compaction roller 7. Then rotate the wing nut 8 to shorten the distance between the two wing nuts 8 until the wing nuts 8 are tightened, and fix the sliding rod 3 a second time.

[0021] This invention utilizes a fixing component that rotates on a threaded rod to bring the fixing component into contact with the sliding rod. The symmetrically designed fixing component thus locks the sliding rod in place, preventing it from loosening in the opposite direction. Then, the threaded rod on the connecting rod engages with the wing nuts on both sides to further secure the sliding rod, improving the stability of the compaction roller and preventing it from loosening or falling off.

[0022] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A roadbed compaction device for solidifying expansive soil, characterized in that: The device includes a rectangular fixed frame (1), a threaded rod (2), and a sliding rod (3). The threaded rod (2) is fixedly connected to the rectangular fixed frame (1) via a threaded rod bearing (11). The threads at both ends of the threaded rod (2) are symmetrically arranged. The sliding rod (3) is provided with a threaded through hole (32) that matches the threaded rod (2). The sliding rod (3) is threadedly connected to the threaded rod (2). A compaction roller bearing (31) is provided in the center of the sliding rod (3). A compaction roller linkage rod (35) is fixedly installed on the inner ring of the compaction roller bearing (31). The outer ring of the compaction roller bearing (31) is fixedly connected to the sliding rod (3). One end of the threaded rod (2) extends out of the rectangular fixed frame (1) and is provided with a rotating disk (22). The rotating disk (22) is fixedly connected to the threaded rod (2) and is located outside the rectangular fixed frame (1). It also includes a compaction roller (7), and the compaction roller (7) has a fixed groove (71) at the center of each side. The inner diameter of the fixed groove (71) is larger than the outer diameter of the compaction roller linkage rod (35) to ensure that the compaction roller linkage rod (35) can extend into the fixed groove (71) and be tightly connected to the compaction roller (7). Each end of the threaded rod (2) is provided with a fixing member (4), and each fixing member (4) is provided on the outside of the sliding rod (3).

2. The roadbed compaction device for solidifying expansive soil according to claim 1, characterized in that: Each of the fasteners (4) has an internal thread that matches the external threads at both ends of the threaded rod (2).

3. The subgrade compaction device for solidifying expansive soil according to claim 1, characterized in that: One end of the sliding rod (3) is provided with a T-shaped sliding wing (33), and the other end is provided with a through hole (34). A T-shaped groove (12) matching the T-shaped sliding wing (33) is provided on one side of the rectangular fixing frame (1) to ensure that the sliding rod (3) can slide horizontally on the rectangular fixing frame (1).

4. The roadbed compaction device for solidifying expansive soil according to claim 3, characterized in that: On the other side of the rectangular fixing frame (1) opposite to the T-shaped groove (12), there are two connecting blocks (13). The connecting blocks (13) are fixedly connected to the connecting rod (5). Each end of the connecting rod (5) is provided with a lead screw (6). One end of the lead screw (6) is fixedly connected to the connecting rod (5). The outer diameter of the lead screw (6) is smaller than the diameter of the through hole (34) to ensure that the lead screw (6) can pass through the through hole (34) on the sliding rod (3).

5. The roadbed compaction device for solidifying expansive soil according to claim 4, characterized in that: The lead screw (6) is provided with a wing nut (8), and the internal thread of the wing nut (8) matches the external thread of the lead screw (6).

6. The subgrade compaction device for solidifying expansive soil according to claim 5, characterized in that: The wing nut (8) is located on the outside of the sliding rod (3).

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