Soil discharging and transferring system for rotary excavating construction in narrow space

Abstract

The utility model belongs to the technical field of underground working well construction, and particularly relates to a dumping transfer system for rotary excavating construction in a narrow space, which comprises a first track, a second track, a third track and a fourth track, the track opening and closing device is provided with two second tracks, the track opening and closing device forms a space for vertical lifting operation of the rotary excavating drill bit after being in an opened state, and the second tracks are aligned with the first tracks one by one after the track opening and closing device is in a closed state; and the transfer trolley reciprocates on the first track and the second track. The space below the excavator body of the excavator is ingeniously utilized, and the transfer trolley freely shuttles back and forth below the excavator, so that the purpose of transferring soil brought out by a drill bit to other places in a narrow space under the condition that the excavator body does not rotate is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of underground working well construction technology, specifically relating to a soil removal and transfer system for rotary drilling construction in narrow spaces. Background Technology

[0002] During subway line construction, drilling rigs are needed to excavate working shafts on the ground. Excavating working shafts is relatively convenient in open areas, but in areas with limited space, construction equipment is restricted by existing surface attachments, hindering normal construction. For example, in large cities like Beijing and Shanghai, many old urban areas still exist, and according to survey requirements, some working shafts need to be constructed in narrow streets less than 5 meters wide. Since the drilling rig itself is only about 4 meters wide, it cannot rotate its body to move the soil lifted by the drill bit elsewhere, thus severely restricting the normal progress of the project. Utility Model Content

[0003] The purpose of this invention is to provide a soil removal and transfer system for rotary drilling in narrow spaces, which can transfer soil by means of a transfer trolley that shuttles under the excavator, ensuring the normal progress of the construction task.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a soil removal and transfer system for rotary drilling in narrow spaces, comprising:

[0005] The first track is arranged on one side of the rotary drilling point in the construction area;

[0006] The track opener has two second tracks. When the track opener is in the open state, it forms a space for the vertical lifting and lowering of the rotary drilling bit. When it is in the closed state, the second tracks are aligned with the first tracks one by one.

[0007] The transfer trolley moves back and forth on the first track and the second track.

[0008] Furthermore, the track opener includes a base, a track frame, and a side-opening push rod; the base has a working hole, and two track frames are provided and symmetrically hinged to both sides of the base, with the second track correspondingly installed on the track frame; the push rod is installed on the base and drives the corresponding track frame to open to expose the entire working hole and to close so that the second track is aligned with the first track.

[0009] Furthermore, the track frame is also provided with a baffle located on the outside of the second track.

[0010] Furthermore, the transfer trolley is driven by its own power unit or an external power unit.

[0011] Furthermore, the self-powered device includes a first motor and a gear mechanism. The first motor is installed at the bottom of the transfer trolley and drives the wheel axle through the gear mechanism.

[0012] Furthermore, the external power unit includes a second motor and a chain mechanism, both of which are installed in the movement path of the transfer trolley, and the transfer trolley is connected to the chain of the chain mechanism.

[0013] Furthermore, the rear of the transfer trolley is hinged with a tail rod, which is hooked to the chain via a tail hook at the rear.

[0014] Furthermore, the external power unit includes two winches, which are respectively located at the front and rear ends of the transfer trolley's movement path and are connected to the front and rear ends of the transfer trolley via traction ropes.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model ingeniously utilizes the space under the excavator itself, and with the help of a transfer trolley that can move freely under the excavator, it can transfer the soil brought out by the drill bit to another location in a narrow space without the excavator body rotating.

[0017] 2. The transfer trolley in this utility model can move back and forth in a straight line by its own power or external power, thereby realizing the rapid transfer of soil.

[0018] 3. The track opening and closing device in this utility model can be opened or closed according to the drilling situation, thereby satisfying the descent and rise of the drill bit. At the same time, it works with the first track to achieve the alignment of the first track and the second track, satisfying the movement of the transfer trolley. Attached Figure Description

[0019] Figure 1 This is a three-dimensional view of the structure in the soil removal state of Example 1;

[0020] Figure 2 This is a front view of the structure in the soil removal state of Embodiment 1;

[0021] Figure 3 for Figure 2 Structural sectional view along the AA direction;

[0022] Figure 4 This is a three-dimensional view of the structure of Example 1 in the drilling state;

[0023] Figure 5 This is a three-dimensional view of the structure in the soil removal state of Example 2;

[0024] Figure 6This is a front view of the structure in the soil removal state of Example 2;

[0025] Figure 7 for Figure 6 Structural sectional view along the BB direction;

[0026] Figure 8 This is a three-dimensional view of the structure in the drilling state of Example 2;

[0027] Figure 9 This is a three-dimensional view of the structure in the soil removal state of Example 3;

[0028] Figure 10 This is a schematic diagram showing the position of the invention and the drilling rig.

[0029] Reference numerals in the attached drawings: 1. First track; 2. Second track; 3. Track opener / closer; 4. Transfer trolley; 5. Base; 6. Track frame; 7. Side-opening push rod; 8. Baffle; 9. First motor; 10. Gear mechanism; 11. Second motor; 12. Chain mechanism; 13. Tail rod; 14. Tail hook; 15. Winch; 16. Traction rope; 17. Working hole; 18. Working well. Detailed Implementation

[0030] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example 1

[0031] like Figures 1 to 4 As shown, a soil removal and transfer system for rotary drilling in narrow spaces includes a first track 1, a track opener 3, and a transfer trolley 4.

[0032] The first track 1 is arranged on one side of the rotary drilling point in the construction area. The excavator drives in along a direction parallel to the first track 1 to drill holes in the rotary drilling point area.

[0033] The track opener / closer 3 has two second tracks 2. When the track opener / closer 3 is in the open state, it forms a space for the vertical lifting and lowering of the rotary drilling bit. When it is in the closed state, the second tracks 2 are aligned one-to-one with the first tracks 1. Obviously, the first tracks 1 and the second tracks 2 are tracks of the same specification.

[0034] As a preferred embodiment, the track opening / closing device 3 includes a base 5, a track frame 6, and a side-opening push rod 7. The base 5 is made of shaped steel, with a steel plate on its surface. A working hole 17 is located in the center of the steel plate, facilitating the descent of the drill bit for drilling into the ground. Two track frames 6 are provided and symmetrically hinged to both sides of the base 5, with the second track 2 correspondingly mounted on each track frame 6. The hinge axis of the track frame 6 is parallel to the second track 2. The push rod is either a hydraulic push rod or an electric push rod, with two on each side of the base 5. The push rod drives the corresponding track frame 6 to open it, exposing the entire working hole, and to close it, aligning the second track 2 with the first track 1.

[0035] As a preferred embodiment, the track frame 6 is also provided with a baffle 8 located outside the second track 2. The function of the baffle 8 is to catch a portion of the falling soil when the drill bit rises and discharges soil, preventing it from falling back into the working hole.

[0036] The transfer trolley 4 moves back and forth on the first track 1 and the second track 2. In this example, the power source for the transfer trolley 4 is its own power unit.

[0037] As a preferred embodiment, the self-powered device includes a first motor 9 and a gear mechanism 10. The first motor 9 is mounted on the bottom of the transfer trolley 4 and drives the wheel axle through the gear mechanism 10. The gear mechanism 10 is a reduction gear mechanism 10, which can convert the high-speed, low-torque output of the first motor 9 into low-speed, high-torque, thereby driving the movement of the transfer trolley 4. Example 2

[0038] like Figures 5 to 8 As shown, unlike Embodiment 1, in this example, the transfer trolley 4 is driven by an external power unit. As a preferred embodiment, the external power unit includes a second motor 11 and a chain mechanism 12, both installed in the movement path of the transfer trolley 4. The transfer trolley 4 is connected to the chain of the chain mechanism 12. Since the weight of the transfer trolley 4 increases after loading soil, the second motor 11 should be located at the rear of the movement path of the transfer trolley 4, that is, at the rear end of the first track 1. The two sprockets of the chain mechanism 12 are located at the front and rear ends of the first track 1, respectively.

[0039] As a preferred example, for ease of connection, the tail of the transfer trolley 4 is hinged with a tail rod 13, and the tail rod 13 is hooked to the chain via a tail hook 14 at the tail. Example 3

[0040] like Figure 9As shown, as an alternative example of the embodiment, the external power unit includes two winches 15, which are respectively located at the front and rear ends of the moving path of the transfer trolley 4, and are connected to the front and rear ends of the transfer trolley 4 by a traction rope 16.

[0041] like Figure 10 As shown, during rotary drilling of the working shaft 18, the transfer trolley 4 is positioned at the rear. At this time, the track opener 3 opens, exposing the working hole 17. The drill bit descends to drill, and after drilling is completed, it rises back to its original position. After the drill bit returns to its original position, the track opener 3 closes, closing the working hole. At this point, the first track 1 and the second track 2 align. The transfer trolley 4 moves from rear to front to below the drill bit, discharging soil into it. The transfer trolley 4 then transports the soil to the rear. The track opener 3 reopens to continue drilling. Repeating this process achieves soil discharge and transfer during continuous drilling.

[0042] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0043] It should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A soil removal and transfer system for rotary drilling in confined spaces, characterized in that: include: The first track (1) is arranged on one side of the rotary drilling point in the construction area; The track opener (3) has two second tracks (2). When the track opener (3) is in the open state, it forms a space for the vertical lifting and lowering of the rotary drilling bit. When it is in the closed state, the second track (2) is aligned with the first track (1). The transfer trolley (4) moves back and forth on the first track (1) and the second track (2).

2. The soil removal and transfer system for rotary drilling in confined spaces according to claim 1, characterized in that: The track opener (3) includes a base (5), a track frame (6), and a side-opening push rod (7); the base (5) has a working hole, and two track frames (6) are provided and are symmetrically hinged on both sides of the base (5), and the second track (2) is correspondingly installed on the track frame (6); the push rod is installed on the base (5) and drives the corresponding track frame (6) to open to expose the entire working hole and to close so that the second track (2) is aligned with the first track (1).

3. The soil removal and transfer system for rotary drilling in confined spaces according to claim 2, characterized in that: The track frame (6) is also provided with a baffle (8) located outside the second track (2).

4. A soil removal and transfer system for rotary drilling in confined spaces according to claim 1, characterized in that: The transfer trolley (4) is driven by its own power unit or an external power unit.

5. A soil removal and transfer system for rotary drilling in confined spaces according to claim 4, characterized in that: The self-powered device includes a first motor (9) and a gear mechanism (10). The first motor (9) is installed at the bottom of the transfer trolley (4) and drives the wheel axle through the gear mechanism (10).

6. A soil removal and transfer system for rotary drilling in confined spaces according to claim 4, characterized in that: The external power unit includes a second motor (11) and a chain mechanism (12). The second motor (11) and the chain mechanism (12) are both installed in the moving path of the transfer trolley (4). The transfer trolley (4) is connected to the chain of the chain mechanism (12).

7. A soil removal and transfer system for rotary drilling in confined spaces according to claim 6, characterized in that: The tail of the transfer trolley (4) is hinged with a tail rod (13), and the tail rod (13) is hooked to the chain through a tail hook (14) at the tail.

8. A soil removal and transfer system for rotary drilling in confined spaces according to claim 4, characterized in that: The external power unit includes two winches (15), which are respectively located at the front and rear ends of the moving path of the transfer trolley (4) and are connected to the front and rear ends of the transfer trolley (4) by a traction rope (16).

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