Auxiliary cutting device for grab bucket of diaphragm wall trenching machine and trenching machine
By installing auxiliary cutting devices on the grab bucket of the ground wall-connecting machine, the cutting device uses the opening and closing action of the grab to drive the cutting device to cut and scrape out the soil blocks under the obstacles, solving the problems of long construction time and high cost in the prior art , improve construction efficiency and progress.
Patent Information
- Application Number
- CN202421044064.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-14
AI Technical Summary
In the construction of underground continuous walls, the existing technology requires manual excavation of earth when protecting underground pipelines, resulting in long construction time, high cost and low efficiency, which affects the progress of the project.
Design an auxiliary cutting device for the gripper for the ground-connecting wall groove machine, including two side plates and mounting plates arranged oppositely. The cutting part of the gripper can be tilted into the soil layer, and the cutting is driven by the opening and closing action of the gripper. The device swings, cutting and scraping out the soil blocks under the obstacles, avoiding pipeline interference, and improving the efficiency of groove-forming operation.
It significantly improves the efficiency of ground-connected walls into troughs, shortens construction time, reduces labor costs, replaces the method of manually excavating the earth under obstacles, and improves the construction progress.
Smart Images
Figure CN222275612U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, in particular to an auxiliary cutting device for a grab bucket of a ground-connected wall slotting machine and a slotting machine. Background Art
[0002] In the construction process of underground continuous wall (abbreviated as "ground continuous wall"), a trenching machine is often used to dig a trench from the ground surface downwards, and a steel cage is placed in the trench and concrete is poured to form an underground continuous wall. The soil structure is destroyed by opening and closing the grab bucket, and the loose soil blocks after the destruction are grabbed to obtain the trench. In actual construction operations, when excavating the earth around the underground pipeline protection, in order to avoid the grab teeth of the grab bucket damaging the pipeline, manual excavation is mainly used to excavate the earth under the pipeline. This operation method takes a long time to construct, has high labor costs, and has low construction efficiency, which will affect the construction progress of the project. Utility Model Content
[0003] Based on this, it is necessary to provide an auxiliary cutting device and a grooving machine for the grab bucket of a ground-anchored wall grooving machine, which can improve the efficiency of the grooving operation of the ground-anchored wall, shorten the construction time and reduce labor costs, in order to address the above-mentioned shortcomings.
[0004] An auxiliary cutting device for a grab bucket of a ground-connected wall groove forming machine comprises two side plates arranged opposite to each other, wherein the side plates comprise a first end for fixing on a side wall of the grab bucket of the groove forming machine and a second end away from the first end, a cutting area is formed between the two side plates, at least one mounting plate is arranged in the cutting area, the two ends of the mounting plate are respectively fixedly connected to the two side plates, at least one grab plate is fixed on the mounting plate, the bottom end of the grab plate extends from the lower surface of the mounting plate, and a cutting portion is arranged on the bottom end of the grab plate.
[0005] In one of the embodiments, the upper portion of the mounting plate is inclined toward the first end of the side plate, and an angle between a height direction of the mounting plate and a height direction of the side plate is between 0° and 30°.
[0006] In one embodiment, the auxiliary cutting device further comprises a reinforcement member, one end of which is fixedly connected to a surface of the side plate adjacent to the cutting area, and the other end of which is used to be fixedly connected to the groove forming machine grab bucket.
[0007] In one embodiment, the reinforcement member includes a first reinforcement bar and a second reinforcement bar, one end of the first reinforcement bar is welded to a side of the side plate adjacent to the cutting area, the other end of the first reinforcement bar is welded to the groove forming machine grab, the second reinforcement bar and the first reinforcement bar are set at an angle, and one end of the second reinforcement bar is welded to a side of the side plate adjacent to the cutting area, the other end of the first reinforcement bar is respectively welded to the first reinforcement bar and the groove forming machine grab, at least one connecting bar is arranged in the area sandwiched by the first reinforcement bar and the second reinforcement bar, and the two ends of the connecting bar are respectively welded to the first reinforcement bar and the second reinforcement bar.
[0008] In one embodiment, two or three mounting plates are arranged in parallel and at intervals in the cutting area.
[0009] In one of the embodiments, three or four grab plates are arranged on the mounting plate in parallel and at intervals along the length direction of the mounting plate.
[0010] In one of the embodiments, the side plate is welded to the side wall of the grooving machine grab bucket, or the side plate is bolted to the side wall of the grooving machine grab bucket; the mounting plate is welded and fixed to the side plate; the grab plate is welded to the mounting plate, or the grab plate is bolted to the mounting plate.
[0011] In one embodiment, the cutting portion has a conical structure.
[0012] In one embodiment, the cutting portion is in a rectangular sheet-like structure, and a blade portion is formed at the bottom end of the cutting portion.
[0013] The utility model also discloses a troughing machine, comprising a grab bucket and an opening and closing driving mechanism for driving the grab bucket to open and close to excavate soil layers, and the side wall of the grab bucket is installed with the auxiliary cutting device.
[0014] The auxiliary cutting device and the groove forming machine used for the grab bucket of the ground-connected wall groove forming machine of the utility model are implemented. By installing the above-mentioned auxiliary cutting device on the grab bucket, when excavating the soil layer under the underground pipeline obstacle, the grab bucket can be lowered into the groove body excavated in advance on one side of the obstacle and operate. The auxiliary cutting device increases the horizontal single-width groove forming length of the groove forming machine. The opening and closing process of the grab bucket will drive the auxiliary cutting device to swing at a certain angle, so that the cutting part at the bottom end of the grab plate gradually cuts the soil layer under the obstacle, and scrapes the cut soil blocks from the side of the obstacle through the mounting plate. The soil body directly under the obstacle can be cut while avoiding the interference of the obstacle in the vertical direction, so as to achieve the purpose of groove forming directly under the obstacle. It replaces the method of manually excavating the soil under the obstacle, significantly improves the efficiency of the ground-connected wall groove forming operation, shortens the construction operation time, and reduces the labor cost of the ground-connected wall groove forming operation with pipeline interference. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1This is a schematic structural diagram of an auxiliary cutting device in one embodiment of the utility model;
[0016] Figure 2 It is a structural schematic diagram of the connection between the auxiliary cutting device and the grab bucket in one embodiment of the utility model;
[0017] Figure 3 A top view of an auxiliary cutting device in one embodiment of the utility model;
[0018] Figure 4 It is a side view of an auxiliary cutting device in one embodiment of the utility model. DETAILED DESCRIPTION
[0019] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0020] Please combine Figure 1-4 The utility model discloses an auxiliary cutting device 10 for a grab bucket of a ground-connected wall slotting machine, which can improve the efficiency of the ground-connected wall slotting operation, shorten the construction operation time and reduce the labor cost. The auxiliary cutting device includes two side plates 100 arranged opposite to each other, that is, the two side plates 100 are arranged in parallel, and the side plates 100 include a first end for fixing on the side wall of the grab bucket 20 of the slotting machine and a second end away from the first end, and a cutting area is formed between the two side plates 100. In this embodiment, one side plate 100 is fixed on the front side wall of the grab bucket, and the other side plate 100 is fixed on the rear side wall of the grab bucket, and the width of the cutting area is equal to the distance between the front and rear side walls of the grab bucket. At least one mounting plate 200 is arranged in the cutting area, and the two ends of the mounting plate 200 are respectively fixedly connected to the two side plates 100, so that the mounting plate 200 and the side plates 100 on both sides thereof can jointly limit and scrape the cut soil blocks, and the connecting body of the mounting plate 200 and the two side plates 100 is an n-shaped structure. At least one grab plate 300 is fixed on the mounting plate 200, and the bottom end of the grab plate 300 extends out from the lower surface of the mounting plate 200, and a cutting portion 310 is provided at the bottom end of the grab plate 300. The grab plate 300 is used to follow the mounting plate 200 to swing relative to the soil layer under the obstacle during the grab operation, so as to cut the soil layer through the cutting portion 310, so that the soil layer under the obstacle is cut into loose soil blocks, and driven by the grab, the mounting plate 200 takes the cut soil blocks away from under the obstacle, so as to achieve the purpose of gradually excavating the soil under the obstacle.
[0021] In order to improve the mechanical strength of the entire auxiliary cutting device, in this embodiment, the side plate 100, the mounting plate 200 and the grab plate 300 are all made of steel plates to reduce the wear of the auxiliary cutting device during operation and extend the service life of the auxiliary cutting device. In this embodiment, the upper part of the mounting plate 200 is inclined toward the direction close to the first end of the side plate 100, and the angle between the height direction of the mounting plate 200 and the height direction of the side plate 100 is between 0-30°. In this way, even when the grab bucket of the grooving machine is closed, the cutting portion 310 at the bottom end of the grab plate 300 can still be tilted and inserted into the soil layer under the obstacle, so as to facilitate the destruction and cutting of the soil layer under the obstacle. Preferably, the angle between the height direction of the mounting plate 200 and the height direction of the side plate 100 is 15°.
[0022] In order to improve the cutting efficiency of the earthwork under the obstacle, in this embodiment, two or three mounting plates 200 are arranged in parallel and at intervals in the cutting area. Preferably, two mounting plates 200 are arranged in parallel and at intervals in the cutting area, one of which is fixedly connected to the middle of the two side plates 100, and the other mounting plates 200 are fixedly connected to the second ends of the two side plates 100, so that the two mounting plates 200 divide the cutting area into two roughly equal earthwork scraping and transporting areas, and the grab plates 300 on the two mounting plates 200 cut the earthwork under the obstacle at the same time, so as to achieve multi-point cutting of the earthwork under the obstacle. Further, three or four grab plates 300 are arranged in parallel and at intervals on the mounting plate 200 along the length direction of the mounting plate 200. Preferably, three grab plates 300 are arranged in parallel and at intervals on the mounting plate 200 along the length direction of the mounting plate 200. By arranging a plurality of grab plates 300 on the mounting plate 200, the cutting area of the earth below the obstacle in a single opening and closing of the grab bucket is increased, which is beneficial to further improve the cutting efficiency.
[0023] In one embodiment, the side plate 100 is welded to the side wall of the slotting machine grab 20, or the side plate 100 is bolted to the side wall of the slotting machine grab 20; the mounting plate 200 is welded and fixed to the side plate 100; the grab plate 300 is welded to the mounting plate 200, or the grab plate 300 is bolted to the mounting plate 200. Preferably, the side plate 100 is welded to the side wall of the slotting machine grab 20, the mounting plate 200 is welded and fixed to the side plate 100, and the grab plate 300 is welded to the mounting plate 200. In other embodiments, the grab plate 300 and the mounting plate 200 are integrally formed, that is, the grab plate 300 can be formed by providing a plurality of convex teeth at intervals on the lower surface of the mounting plate 200.
[0024] Furthermore, in one embodiment, the cutting portion 310 is a conical structure. Specifically, the cutting portion 310 may be a triangular sheet structure of equal thickness, or a triangular sheet structure of non-equal thickness with a thick upper portion and a thin lower portion. In another embodiment, the cutting portion 310 is a rectangular sheet structure, and a blade portion is formed at the bottom end of the cutting portion 310 to increase the pressure of the cutting portion 310 on the soil layer, thereby improving the cutting effect and efficiency of the soil layer.
[0025] In order to improve the stability of the auxiliary cutting device when installed on the grab bucket, in one embodiment, the auxiliary cutting device further includes a reinforcing member 400, one end of which is fixedly connected to a surface of the side plate 100 adjacent to the cutting area, and the other end of the reinforcing member 400 is used to be fixedly connected to the groove forming machine grab bucket 20. Preferably, in this embodiment, the extension direction of the reinforcing member 400 and the length direction of the side plate 100 have a preset angle, so that the connection part between the reinforcing member 400 and the side plate 100, the connection part between the side plate 100 and the grab bucket, and the connection part between the grab bucket and the reinforcing member 400 form a triangle. According to the triangle stability principle, the auxiliary cutting device can be prevented from swinging or shifting relative to the grab bucket, thereby improving the stability of the auxiliary cutting device when installed on the grab bucket. Further preferably, the reinforcement member 400 includes a first reinforcement strip 410 and a second reinforcement strip 420, one end of the first reinforcement strip 410 is welded to a side of the side plate 100 adjacent to the cutting area, the other end of the first reinforcement strip 410 is welded to the grooving machine grab 20, the second reinforcement strip 420 is arranged at an angle to the first reinforcement strip 410, and one end of the second reinforcement strip 420 is welded to a side of the side plate 100 adjacent to the cutting area, the other end of the first reinforcement strip 410 is respectively welded to the first reinforcement strip 410 and the grooving machine grab 20, at least one connecting strip 430 is arranged in the area sandwiched by the first reinforcement strip 410 and the second reinforcement strip 420, and the two ends of the connecting strip 430 are respectively welded to the first reinforcement strip 410 and the second reinforcement strip 420. When only one connecting strip 430 is provided between the first reinforcing strip 410 and the second reinforcing strip 420, the entire reinforcing member 400 is in an A-shaped structure. In other words, there are two connecting parts between the reinforcing member 400 and the side plate 100, so as to increase the connection area between the reinforcing member 400 and the side plate 100, avoid the failure of the reinforcing member 400 caused by the loose connection part between the reinforcing member 400 and the side plate 100, and thereby improve the stability of the auxiliary cutting device installed on the side wall of the grab bucket.
[0026] In addition, the utility model also discloses a troughing machine, which includes a grab and an opening and closing driving mechanism that drives the grab to open and close to excavate the soil layer. Of course, the troughing machine also includes a command room that controls the operation of the opening and closing driving mechanism and can accommodate an operator, and a walking device installed at the bottom of the control room and can drive the control room to move. The walking device includes tracks or wheels, and a power mechanism that drives the tracks or wheels to adjust the position of the control room. The opening and closing driving structure includes an xyz three-axis mechanical cantilever installed outside the control room, and a driving structure arranged on the xyz three-axis mechanical cantilever and controlling the opening or closing of the grab. The grab includes a left bucket body and a right bucket body that are relatively arranged and swingably installed at the ends of the xyz three-axis mechanical cantilever.
[0027] In this embodiment, the side wall of the grab is equipped with the auxiliary cutting device, so that when excavating the earthwork under the underground pipeline obstacle, a groove of a certain depth can be excavated on one side or both sides of the pipeline. After the groove is excavated on one side of the pipeline, the grab is lowered into the groove and the end of the auxiliary cutting device is abutted against the side of the soil layer under the pipeline by opening and closing the grab, and the cutting part at the bottom of the grab plate gradually cuts the soil layer from the side of the soil layer under the pipeline by opening and closing the grab, and the cut soil layer is scraped out through the mounting plate until all the earthwork under the pipeline is excavated. After trenches are excavated on both sides of the pipeline, the grab is lowered into one side of the trench and the end of the auxiliary cutting device impacts the soil layer below the pipeline by opening and closing the grab. On the one hand, the cutting part on the grab plate gradually cuts the side of the soil layer below the pipeline. On the other hand, the end of the auxiliary cutting device impacts the soil layer below the pipeline, which will accelerate the loosening of the soil layer under the pipeline, causing the soil to tip over or collapse toward the trench on the other side of the pipeline, thereby accelerating the cleaning operation of the soil under the pipeline.
[0028] The auxiliary cutting device 10 and the groove forming machine for the grab bucket of the ground-connected wall groove forming machine of the utility model are implemented. By installing the above-mentioned auxiliary cutting device on the grab bucket, when excavating the soil layer under the underground pipeline obstacle, the grab bucket can be lowered into the groove body excavated in advance on one side of the obstacle and operate. The auxiliary cutting device increases the horizontal single-width groove forming length of the groove forming machine. The opening and closing process of the grab bucket will drive the auxiliary cutting device to swing at a certain angle, so that the cutting part 310 at the bottom end of the grab plate 300 gradually cuts the soil layer under the obstacle, and scrapes the cut soil blocks from the side of the obstacle through the mounting plate 200. The soil body directly under the obstacle can be cut in the vertical direction while avoiding the interference of the obstacle, so as to achieve the purpose of groove forming directly under the obstacle. It replaces the method of manually excavating the soil under the obstacle, significantly improves the efficiency of the ground-connected wall groove forming operation, shortens the construction operation time, and reduces the labor cost of the ground-connected wall groove forming operation with pipeline interference.
[0029] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0030] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. An auxiliary cutting device for a grab bucket of a ground-connected wall slotting machine, characterized in that: It includes two side plates arranged opposite to each other, the side plates include a first end for fixing on the side wall of the grooving machine grab bucket and a second end away from the first end, a cutting area is formed between the two side plates, at least one mounting plate is arranged in the cutting area, the two ends of the mounting plate are respectively fixedly connected with the two side plates, at least one grab plate is fixed on the mounting plate, the bottom end of the grab plate extends out from the lower surface of the mounting plate, and a cutting portion is arranged at the bottom end of the grab plate.
2. The auxiliary cutting device according to claim 1, characterized in that: The upper portion of the mounting plate is inclined toward the direction close to the first end of the side plate, and an angle between a height direction of the mounting plate and a height direction of the side plate is between 0° and 30°.
3. The auxiliary cutting device according to claim 1, characterized in that: It also includes a reinforcement piece, one end of which is fixedly connected to a side of the side plate adjacent to the cutting area, and the other end of the reinforcement piece is used to be fixedly connected to the groove forming machine grab bucket.
4. The auxiliary cutting device according to claim 3, characterized in that: The reinforcement member includes a first reinforcement bar and a second reinforcement bar, one end of the first reinforcement bar is welded to a side of the side plate adjacent to the cutting area, the other end of the first reinforcement bar is welded to the groove forming machine grab bucket, the second reinforcement bar and the first reinforcement bar are set at an angle, and one end of the second reinforcement bar is welded to a side of the side plate adjacent to the cutting area, the other end of the first reinforcement bar is respectively welded to the first reinforcement bar and the groove forming machine grab bucket, at least one connecting bar is arranged in the area sandwiched by the first reinforcement bar and the second reinforcement bar, and the two ends of the connecting bar are respectively welded to the first reinforcement bar and the second reinforcement bar.
5. The auxiliary cutting device according to claim 1, characterized in that: Two or three mounting plates are arranged in parallel and at intervals in the cutting area.
6. The auxiliary cutting device according to claim 1, characterized in that: Three or four grab plates are arranged on the mounting plate in parallel and at intervals along the length direction of the mounting plate.
7. The auxiliary cutting device according to claim 1, characterized in that: The side plate is welded to the side wall of the troughing machine grab bucket, or the side plate is bolted to the side wall of the troughing machine grab bucket; the mounting plate is welded and fixed to the side plate; the grab plate is welded to the mounting plate, or the grab plate is bolted to the mounting plate.
8. The auxiliary cutting device according to claim 1, characterized in that: The cutting portion has a conical structure.
9. The auxiliary cutting device according to claim 1, characterized in that: The cutting part is in a rectangular sheet structure, and a blade part is formed at the bottom end of the cutting part.
10. A trenching machine, comprising a grab bucket and an opening and closing driving mechanism for driving the grab bucket to open and close to excavate soil layers, characterized in that: The side wall of the grab bucket is installed with the auxiliary cutting device described in any one of claims 1-9.