A power head mounting structure of a diaphragm wall trenching machine

Abstract

The utility model discloses a kind of underground continuous wall trenching machine power head mounting structures of technical field, including frame body, power head, bolt, positioning block fixed installation is in the lower part of power head side, the lower part of both sides of power head is provided with positioning block, mounting plate installation fixed installation is in the side of power head, the both sides of power head are provided with mounting plate, mounting hole is set on the mounting plate, first threaded hole is set on the upper portion of frame body, circular mounting groove is set in the middle part of positioning block, sphere is installed in the circular mounting groove, positioning rod fixed installation is in the bottom of sphere, conical positioning rod is fixedly connected in the bottom of positioning rod, positioning rod and conical positioning rod cooperate with conical positioning hole and positioning hole, conical cooperation is realized automatic centering by inclined surface contact, can compensate small axis deviation, accurate automatic positioning is carried out to power head installation, power head is quickly installed.

Description

Technical Field

[0001] This utility model relates to the field of trenching machine technology, specifically to a power head installation structure for a continuous underground wall trenching machine. Background Technology

[0002] In deep foundation construction (such as diaphragm walls, pile foundation projects, etc.), the trenching machine is the core equipment, and the installation accuracy of its power head directly affects the verticality of the trench, the stability of the trench wall, and the construction efficiency. However, the current installation process of trenching machine power heads generally suffers from difficulties in precise positioning, resulting in low installation efficiency. Trenching machine power head installation is mostly carried out outdoors, especially in windy weather. The wind causes the power head to sway, increasing the difficulty of installation. For example, in a trenching machine grab bucket disclosed in Chinese patent literature (application number: CN202422359859.3), the frame does not have a positioning mechanism. If the power head is installed, it relies on manual visual inspection or simple measuring tools (such as levels and plumb lines), which is greatly affected by the operator's skill level and easily produces millimeter-level deviations. Especially under complex geological conditions (such as soft soil and interbedded rock layers), the error will be further amplified. Furthermore, the power head is usually connected to the main unit via hydraulic cylinders or mechanical linkages, requiring adjustment of multiple degrees of freedom (such as horizontality, verticality, and centering) during installation. The lack of a positioning mechanism significantly reduces the installation efficiency of the power head.

[0003] Therefore, we propose a power head installation structure for a diaphragm wall trenching machine. Utility Model Content

[0004] The purpose of this utility model is to provide a power head installation structure for a continuous underground wall trenching machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a power head installation structure for a diaphragm wall trenching machine, comprising a frame, a power head, and bolts; A positioning block is fixedly installed on the lower side of the power head, and positioning blocks are provided on the lower left and right sides of the power head. Mounting plates are fixedly installed on the side of the power head, and mounting plates are provided on both the left and right sides of the power head. Mounting holes are provided on the mounting plate; The first threaded hole is provided on the upper part of the frame; A circular mounting groove is provided in the center of the positioning block; A sphere, which is installed in the circular mounting slot; The positioning rod is fixedly installed at the bottom of the sphere; A tapered positioning rod is fixedly connected to the bottom of the positioning rod. A tapered positioning hole is provided on the frame; A positioning hole is provided at the bottom of the tapered positioning hole.

[0006] Preferably, the upper side of the positioning rod is provided with a positioning opening, and the frame is provided with a second threaded hole that mates with the bolt.

[0007] Preferably, the upper part of the positioning rod is tapered, and the angle of the tapered upper part of the positioning rod is the same as the angle of the tapered positioning hole.

[0008] Preferably, two sets of mounting plates are provided on the left and right sides of the power head, and two sets of mounting holes are provided on the mounting plates.

[0009] Compared with the prior art, the beneficial effects of this utility model are: the sphere can move at any angle within the circular mounting groove, facilitating the adjustment of the angle of the conical positioning rod, so that the end of the conical positioning rod is positioned above the conical positioning hole. The upper part of the conical positioning hole has a large diameter, which facilitates the movement of the conical positioning rod into the conical positioning hole. After the positioning rod contacts the positioning hole, the positioning rod and the conical positioning rod are in a vertical state, completing the vertical positioning of the power head. Through the cooperation of the positioning rod and the conical positioning rod with the conical positioning hole, the conical cooperation achieves automatic centering through inclined surface contact, which can compensate for minor axial deviations, accurately and automatically positioning the power head for installation, and enabling rapid installation of the power head. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the positioning block structure of this utility model.

[0011] In the diagram: 1. Frame; 2. Power head; 3. Positioning block; 4. Mounting plate; 5. Bolt; 6. Mounting hole; 7. First threaded hole; 8. Circular mounting groove; 9. Sphere; 10. Positioning rod; 11. Conical positioning rod; 12. Positioning port; 13. Conical positioning hole; 14. Positioning hole; 15. Second threaded hole. Detailed Implementation

[0012] 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.

[0013] Please see Figure 1-2This utility model provides a technical solution: a power head installation structure for a continuous underground wall trenching machine, including a frame 1, a power head 2, bolts 5, a positioning block 3 fixedly installed on the lower side of the power head 2, and positioning blocks 3 are provided on the lower left and right sides of the power head 2, an installation plate 4 is fixedly installed on the side of the power head 2, and installation plates 4 are provided on the left and right sides of the power head 2, an installation hole 6 is provided on the installation plate 4, a first threaded hole 7 is provided on the upper part of the frame 1, a circular installation groove 8 is provided in the middle of the positioning block 3, a ball 9 is installed in the circular installation groove 8, a positioning rod 10 is fixedly installed on the bottom of the ball 9, a conical positioning rod 11 is fixedly connected to the bottom of the positioning rod 10, a conical positioning hole 13 is provided on the frame 1, and a positioning hole 14 is provided at the bottom of the conical positioning hole 13; Install the power head 2 by hoisting it above the frame 1 and slowly moving it downwards. During this downward movement, rotate the positioning rod 10. The positioning rod 10 rotates via the ball 9 within the circular mounting groove 8. Adjust the angle of the conical positioning rod 11. The ball 9 can move at any angle within the circular mounting groove 8, facilitating the adjustment of the angle of the conical positioning rod 11. Position the end of the conical positioning rod 11 above the conical positioning hole 13. The upper part of the conical positioning hole 13 has a large diameter, facilitating the movement of the conical positioning rod 11 into the conical positioning hole 13. When the power head 2 moves downwards, the conical positioning rod 11 moves into the conical positioning hole 13 without requiring further adjustment of its angle. The power head 2 continues to move downwards. After the positioning rod 10 contacts the positioning hole 14, the positioning rod 10 and the conical positioning rod 11 are in a vertical state, completing the vertical positioning of the power head 2. When the power head 2 is placed on the frame 1, the mounting hole 6 on the mounting plate 4 is aligned with the first threaded hole 7. The power head 2 is installed by connecting the mounting hole 6 and the first threaded hole 7 with bolts and tightening the bolts. The positioning rod 10 and the conical positioning rod 11 cooperate with the conical positioning hole 13 and the positioning hole 14. The conical cooperation achieves automatic centering through the inclined surface contact, which can compensate for small axial deviations and perform precise automatic positioning for the installation of the power head 2, enabling the power head 2 to be installed quickly.

[0014] Reference embodiment: The upper side of the positioning rod 10 is provided with a positioning port 12, and the frame 1 is provided with a second threaded hole 15 that mates with the bolt 5. The bolt 5 is installed into the second threaded hole 15 and tightened. The left end of the bolt 5 is installed into the positioning port 12 to lock the positioning rod 10 and strengthen the fixation of the power head 2.

[0015] Reference embodiment: The upper part of the positioning rod 10 is set as a cone, and the angle of the cone on the upper part of the positioning rod 10 is the same as the angle of the cone positioning hole 13. When the power head 2 is installed, the upper cone part of the positioning rod 10 cooperates with the cone positioning hole 13, and the positioning rod 10 will not obstruct the installation and fixation of the power head 2.

[0016] Reference embodiment: Two sets of mounting plates 4 are respectively provided on the left and right sides of the power head 2. Two sets of mounting holes 6 are provided on the mounting plates 4. Bolts are used to pass through the mounting holes 6 and connect to the first threaded hole 7 to install and fix the mounting plates 4, thereby completing the installation and fixation of the power head 2.

[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power head installation structure for a diaphragm wall trenching machine, characterized in that, Includes frame (1), power head (2), bolts (5); Positioning block (3) is fixedly installed on the lower side of the power head (2). Positioning blocks (3) are provided on the lower left and right sides of the power head (2). Mounting plate (4) is installed and fixed on the side of the power head (2). Mounting plate (4) is provided on both the left and right sides of the power head (2). Mounting holes (6) are provided on the mounting plate (4); The first threaded hole (7) is provided on the upper part of the frame (1); A circular mounting groove (8) is provided in the middle of the positioning block (3); A sphere (9) is installed in the circular mounting groove (8); Positioning rod (10) is fixedly installed at the bottom of the ball (9); A tapered positioning rod (11) is fixedly connected to the bottom of the positioning rod (10); A tapered positioning hole (13) is provided on the frame (1); Positioning hole (14) is provided at the bottom of the tapered positioning hole (13).

2. The installation structure of the power head for a diaphragm wall trenching machine according to claim 1, characterized in that: The positioning rod (10) has a positioning port (12) on the upper side, and the frame (1) has a second threaded hole (15) that cooperates with the bolt (5).

3. The installation structure of the power head for a diaphragm wall trenching machine according to claim 1, characterized in that: The upper part of the positioning rod (10) is set in a cone shape, and the angle of the cone shape on the upper part of the positioning rod (10) is the same as the angle of the cone positioning hole (13).

4. The installation structure of the power head for a diaphragm wall trenching machine according to claim 1, characterized in that: The power head (2) has two sets of mounting plates (4) on its left and right sides respectively, and the mounting plates (4) have two sets of mounting holes (6).

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