Application of pneumatic jackhammer machine in drilling in constructional engineering

Abstract

The invention relates to application of a pneumatic pneumatic hammer machine to drilling in constructional engineering, which comprises the following steps of: S1, arranging an X-shaped hand-held bracket on the pneumatic pneumatic hammer machine, and arranging an air door extension gate on a bracket on one side of the X-shaped hand-held bracket; s2, a spiral drill rod is fixedly arranged on a rotating head of the pneumatic jackhammer machine through a penetrating pin; s3, air flow with the air pressure of 1.1 MPa is adopted for driving the pneumatic jackhammer machine to work; s4, the pneumatic pneumatic hammer machine is used for drilling the ground, and drilling is stopped when the torque limit of a rotating head of the pneumatic pneumatic hammer machine is reached; and the injury to operators can be avoided.

Description

Technical Field

[0001] The present application relates to the technical field of construction engineering, and in particular to the application of a pneumatic jackhammer for drilling holes in construction engineering. Background Art

[0002] In the photovoltaic field area on the plateau hillside, the topography and geology have great changes, and it is inevitable to occupy steep slopes of 30° to 45°. Crawler drills cannot be used for drilling if the slope exceeds 30°. Due to geological differences, four types of drilling machinery can be used for such steep slopes: ① Pure soil and fine crushed stone soil can be drilled with a hand-held spiral drill; ② Any mixture of soil, coarse crushed stone soil and rock can only be drilled with a small bee drill operated by 5 people; ③ Smaller diameter pile foundations can be used for exposed rocks of medium hardness or above, and can be drilled with a single-person hand pneumatic drill; ④ Soft rock exposed rock pile foundations have a larger diameter. In addition to the small bee drill, a single-person operated water mill drill can also be used.

[0003] In the construction process of steep slope geology with soil, gravel and soft rock, a double-column bracket was used. The diameter of the photovoltaic micro-pile was 170mm and the depth was 1.3m. When using a hand-held electric spiral drill to drill holes in pure soil and fine gravel, it was found that when encountering harder particles, construction workers need to apply downward pressure to assist drilling. When the applied force is too large, the continuous shaking of the drill causes continuous damage to the operator's arm. Long-term work causes harm to the construction workers, which is not conducive to construction. Summary of the invention

[0004] In order to solve or partially solve the problems existing in the related technology, the present application provides an application of a pneumatic jackhammer for drilling holes in construction projects, which can avoid damage to operators.

[0005] The present application discloses an application of a pneumatic jackhammer for drilling holes in construction engineering, comprising the following steps:

[0006] S1, an X-shaped hand-held bracket is provided on the pneumatic jackhammer, and a damper extension gate is provided on one side bracket of the X-shaped hand-held bracket;

[0007] S2, a spiral drill rod is fixedly set on the rotating head of the pneumatic jackhammer by using a through pin;

[0008] S3, uses 1.1MPa air pressure to drive the pneumatic jackhammer to work;

[0009] S4, use the pneumatic jackhammer to perform drilling operations on the ground, and the drilling stops when the torque limit of the rotating head of the pneumatic jackhammer is reached.

[0010] Optionally, the pneumatic jackhammer is a pneumatic wrench for disassembling and assembling bolts, weighing 20-30kg and with a maximum torque of 88kN.m.

[0011] Optionally, a cone-bottom drill bit is fixedly arranged at one end of the spiral drill rod.

[0012] Optionally, the auger rod is 1-1.5 meters long.

[0013] Optionally, two people hold the drilling rig at the same height on both sides of the X-shaped hand support bracket, position the drilling rig on the pile foundation point for measurement, open the air damper, and initially the air damper is slightly small, and the air damper is not opened more than half. After the cone-bottom drill bit enters the soil, gradually open the air damper to the maximum.

[0014] Optionally, when encountering harder geology, two people squat to lower the drill rig.

[0015] Optionally, when encountering hard geology that causes the drill to stop automatically and cannot be forced to drill, first use the bee drill and then replace it with a pneumatic jackhammer to drill.

[0016] The technical solution provided by this application may have the following beneficial effects:

[0017] This device uses the characteristic of the jackhammer to stop when reaching the maximum torque, and avoids the disadvantage of the electric spiral drill that continuously shakes and hurts people when encountering hard particles during the drilling process of pure soil and fine gravel. Moreover, compared with the bee drill, it saves manpower, materials, energy, and is safer.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0020] Figure 1 It is a structural schematic diagram shown in an embodiment of the present application;

[0021] Reference numerals:

[0022] 1. Pneumatic air jackhammer; 2. Hand-held bracket; 3. Air door extension gate; 4. Auger rod; 5. Cone-bottom drill bit; 6. High-pressure air supply pipe. DETAILED DESCRIPTION

[0023] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0024] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0025] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] In response to the above-mentioned problems, an embodiment of the present application provides an application of a pneumatic jackhammer for drilling holes in construction projects. The technical solution of the embodiment of the present application is described in detail below in conjunction with the accompanying drawings.

[0028] like Figure 1 The drilling equipment modified from a pneumatic jackhammer is shown, or called a jackhammer drilling machine, comprising a pneumatic jackhammer 1, a hand-held bracket 2, an air door extension gate 3, a spiral drill rod 4, a cone-bottom drill bit 5, and a high-pressure air supply pipe 6. In the present application, the pneumatic jackhammer 1 is applied to the drilling of construction projects, and the pneumatic jackhammer 1 needs to be modified to a certain extent. The specific application includes the following steps:

[0029] S1, an X-shaped hand-held bracket 2 is arranged on the pneumatic blaster 1, and a damper extension gate 3 is arranged on a bracket on one side of the X-shaped hand-held bracket 2;

[0030] S2, the spiral drill rod 4 is fixedly set on the rotating head of the pneumatic jackhammer 1 by using a through pin;

[0031] S3, using an airflow of 1.1 MPa pressure to drive the pneumatic jackhammer 1 to work;

[0032] S4, using the drilling equipment composed of the pneumatic jackhammer to perform drilling operations on the ground, the drilling automatically stops when the torque limit of the rotating head of the pneumatic jackhammer is reached.

[0033] In the present application, the pneumatic jackhammer 1 uses a pneumatic wrench for disassembling and assembling bolts, which weighs 20-30kg and has a maximum torque of 88kN.m. Generally, the pneumatic jackhammer 1 weighs about 22kg. When the spiral drill rod 4, the cone-bottom drill bit 5 and the high-pressure air supply pipe 6 are connected, the total weight will reach about 36kg. Therefore, under normal circumstances, the overall weight is less than 50kg. The maximum torque of the rotating head of the pneumatic jackhammer is 88kN.m. The pneumatic wrench used for disassembling and assembling bolts is selected. When the torque is greater than 88kN.m, when encountering hard objects such as stones during drilling, the equipment will continue to shake and cause damage. However, due to the special requirements of the pneumatic jackhammer when tapping bolts, when the maximum torque is reached, the rotating head of the equipment will automatically stop rotating, and the equipment will no longer perform drilling work, thus avoiding the continuous shaking of the drilling rig and causing continuous damage to the operator's arm. A cone-bottom drill bit is fixed at one end of the spiral drill rod to facilitate drilling. The spiral drill rod is 1-1.5 meters long. Specifically, a 1.3m drill rod can be selected to reduce the damage to the hole wall caused by changing the drill rod. When working, two people hold the X-shaped hand-held bracket 2 on both sides at the same height to stabilize the drilling rig, position the drilling rig on the pile foundation point where the measurement is placed, and open the damper. The damper extension gate 3 is the original control valve of the pneumatic wrench. Since the hand-held bracket 2 is added to this application, it is necessary to move the control valve switch to the side of the handrail for convenient hand operation. The opening can be set to a handle type or a rotary type like a motorcycle acceleration controller according to specific needs. When in use, the damper is slightly small at first, and the damper is opened no more than half. After the cone-bottom drill bit is inserted into the soil, the damper is gradually opened to the maximum. The size of the damper is controlled by the damper extension gate 3. As the drilling rig is relatively light, two people are required to squat and lower the drill rig when encountering harder geological conditions; compared with the Little Bee, the drill rig does not require air to blow the hole, so excavation requires manual lifting of the drill rig but the air will not be turned off to throw the soil out of the hole. When encountering harder geological conditions that cause the drill rig to stop automatically and cannot be forced to drill, use the Little Bee to drill first and then replace it with a pneumatic jackhammer to drill.

[0034] In this way, for the steep slope high-voltage area with pure soil and fine gravel, place an air compressor with a pressure of 1.1MPa and more than 8m3 on the access road, connect the high-pressure air duct to the air cannon on the working surface, and install a 1.3m drill rod at a time to reduce the damage to the hole wall caused by drilling with a drill rod. Two people stand opposite each other and hold the rig at the same height on both sides of the bracket 2, position the rig on the pile foundation point where the measurement is placed, and open the air door. At first, the air door is opened slightly less than half, and the air door is gradually opened to the maximum after the cone-bottom drill bit enters the soil.

[0035] When the pneumatic jackhammer machine is transformed into a jackhammer drill and applied to drilling holes in construction projects, compared with the bee drill, ① the bee drill requires 5 people to operate, while this drill only requires 2 people to operate, saving manpower; ② this drill has less damage to the hole wall of fine gravel and soil than the bee drill, saving concrete when pouring concrete in the hole; ③ a 24m3 large air compressor can only carry 2 bee drills, but can carry 3 of this drill, which is relatively energy-saving; ④ the bee drill weighs 125kg and drags 2 air ducts, while this drill weighs 36kg and carries 1 air duct. It will automatically stop when encountering greater resistance, which is safe to use. In addition, during use, for soft upper and hard lower geology, you can first use the jackhammer spiral drill to drill the upper part, and then use the bee drill to drill the lower part, which plays the role of a pilot hole, which is safe and saves some costs.

[0036] In addition, the present application only requires adding an X-shaped hand-held bracket 2 to the pneumatic jackhammer, and using a through pin to fix the spiral drill rod on the rotating head of the pneumatic jackhammer to form a drilling rig. Compared with a drilling rig dedicated to drilling holes, it is convenient and safe, and the modification cost is not high.

[0037] Finally, it should be noted that, in this article, relationships such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms include, include or any other variations are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0039] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An application of a pneumatic jackhammer for drilling holes in construction engineering, characterized in that: The following steps are involved: S1, an X-shaped hand-held bracket is provided on the pneumatic jackhammer, and a damper extension gate is provided on one side bracket of the X-shaped hand-held bracket; S2, a spiral drill rod is fixedly set on the rotating head of the pneumatic jackhammer by using a through pin; S3, uses 1.1MPa air pressure to drive the pneumatic jackhammer to work; S4, use the pneumatic jackhammer to perform drilling operations on the ground, and the drilling stops when the torque limit of the rotating head of the pneumatic jackhammer is reached.

2. The application of a pneumatic jackhammer for drilling holes in construction engineering according to claim 1 is characterized in that: The pneumatic jackhammer is a pneumatic wrench for disassembling and assembling bolts, weighing 20-30kg and with a maximum torque of 88kN.m.

3. The application of a pneumatic jackhammer for drilling holes in construction engineering according to claim 1 is characterized in that: A cone-bottom drill bit is fixedly arranged at one end of the spiral drill rod.

4. The application of a pneumatic jackhammer for drilling holes in construction engineering according to claim 1 is characterized in that: The auger rod is 1-1.5 meters long.

5. The application of a pneumatic jackhammer for drilling holes in construction engineering according to claim 1 is characterized by: Two people hold the drilling rig at the same height on both sides of the X-shaped hand support bracket, position the drilling rig on the pile foundation point for measurement, open the air damper, and initially open the air damper to half. After the cone-bottom drill bit enters the soil, gradually open the air damper to the maximum.

6. The application of a pneumatic jackhammer for drilling holes in construction engineering according to claim 1 is characterized by: When encountering harder geology, two people squatted down and lowered the drill rig.

7. The application of a pneumatic jackhammer for drilling holes in construction engineering according to claim 1 is characterized by: When encountering hard geological conditions that cause the drill to stop automatically and cannot be forced to drill, first use the bee drill and then replace it with a pneumatic jackhammer to drill.

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