Cast-in-place pile rotary drilling tube slag shoveling device

Abstract

The invention relates to the technical field of rotary drilling barrels and discloses a device for shoveling and unloading slag from a bored pile rotary drilling barrel, comprising a drill barrel and a shoveling and unloading pressure rod which moves up and down relative to the drill barrel, wherein the drill barrel is provided with a cavity for accommodating slag, the upper portion of the shoveling and unloading pressure rod passes through a top plate of the drill barrel to form an operating section arranged outside the cavity, and the lower portion of the shoveling and unloading pressure rod is arranged in the cavity to form an internal section; a shoveling plate is connected to the internal section of the shoveling and unloading pressure rod, and the shoveling plate is close to the inner side wall of the drill barrel; when the drill barrel is drilling, slag is embedded in the cavity of the drill barrel, and when the drill barrel is pulled out, the shoveling plate is driven to move up and down by operating the shoveling and unloading pressure rod, and the shoveling plate can shovel the slag away from the inner side wall of the cavity, and then, by utilizing the dead weight of the slag, the slag can be conveniently dropped from the cavity of the drill barrel without the need to rotate the drill barrel back and forth, and during the process of unloading the slag from the drill barrel, the noise is low, the operation is fast and efficient, and no mechanical damage to the rotary drilling rig is caused.

Description

Technical Field

[0001] The invention relates to the technical field of rotary drilling barrels, and more specifically, to a device for shoveling and unloading slag from a rotary drilling barrel for a bored pile. Background Art

[0002] When a rotary drilling rig is used to drill a bored pile, the main drilling process is as follows: the drill rod of the rotary drilling rig drives the drill barrel to drill into the pile hole, and various debris such as sand, gravel, soil, etc. in the pile hole are continuously rotary-drilled into the drill barrel. After the rotary drilling reaches a certain depth, the drill barrel is lifted, and the turntable of the rotary drilling rig is turned to drive the drill rod and the drill barrel to rotate a certain angle, and the debris in the drill barrel is unloaded onto the site near the pile hole, and then the drill barrel is rotated back into the pile hole, and the drill rod and drill barrel are extended into the pile hole to continue the next step of drilling.

[0003] At present, double-bottom pick drill barrels are generally used for rotary excavation of soil layers. The action of unloading the slag in the drill barrel is: lift the drill rod and the drill barrel, so that the outer casing chassis of the drill rod presses the slag outlet of the drill barrel to open the pressure rod by about 10cm to 20cm, and the slag outlet of the drill barrel is opened under the action of its own weight, and the slag in the drill barrel falls under the action of its own weight. However, since the slag and the inner wall of the drill barrel are often firmly bonded, part of the slag cannot fall freely. At this time, it is necessary to quickly rotate the drill barrel back and forth to throw off the remaining slag in the drill barrel. This soil throwing operation has the following defects:

[0004] 1) The noise is loud, and the area several kilometers around the rotary drilling rig can be affected by the noise;

[0005] 2) It is time-consuming and energy-consuming. Each soil-throwing action takes a certain amount of time;

[0006] 3) The mechanical damage is great. The drill rod drives the drill barrel to rotate back and forth quickly, which will easily cause damage to the drill rod, drill barrel and other parts of the rotary drilling rig. Summary of the invention

[0007] The purpose of the present invention is to provide a device for shoveling and unloading soil from a rotary drilling barrel of a bored pile, aiming to solve the problems in the prior art of using a rotary drilling barrel to rotate back and forth to throw off soil, which results in high noise, time consumption and great mechanical damage.

[0008] The present invention is implemented as follows: a device for shoveling and unloading debris from a bored pile rotary drilling drill barrel comprises a drill barrel and a shoveling and unloading pressure rod which moves up and down relative to the drill barrel, wherein the drill barrel has a cavity for accommodating debris, the upper portion of the shoveling and unloading pressure rod passes through a top plate of the drill barrel to form an operating section disposed outside the cavity, and the lower portion of the shoveling and unloading pressure rod is disposed in the cavity to form an internal section; a shoveling plate is connected to the internal section of the shoveling and unloading pressure rod, and the shoveling plate is close to the inner wall of the drill barrel.

[0009] Furthermore, along the circumferential direction of the drill tube, the shovel plate is in an arc shape.

[0010] Furthermore, when the shovel plate is in an initial state, the curvature of the shovel plate is consistent with the curvature of the inner side wall of the drill tube.

[0011] Furthermore, the shovel plate has an outer side surface facing the inner side wall of the cavity, and a gap is formed between the outer side surface of the shovel plate and the inner side wall of the cavity.

[0012] Furthermore, the shovel plate has an inner side surface arranged away from the inner wall of the cavity and an outer side surface arranged toward the inner wall of the cavity; the upper part of the inner side surface of the shovel plate is inclined to form an upper inner inclined surface, and the upper part of the outer side surface of the shovel plate is inclined to form an upper outer side surface; along the bottom-up direction, the upper inner inclined surface is inclined toward the inner wall of the cavity, and the upper outer side surface is inclined away from the inner wall of the cavity.

[0013] Furthermore, the lower part of the inner side surface of the shovel plate is inclined to form a lower inner inclined surface, and the lower part of the outer side surface of the shovel plate is inclined to form a lower outer side surface; along the top-down direction, the lower inner inclined surface is inclined toward the inner wall of the cavity, and the lower outer side surface is inclined away from the inner wall of the cavity.

[0014] Furthermore, a plurality of shovel plates are connected to the built-in section of the shovel-unloading pressure rod, and the plurality of shovel plates on the built-in section are arranged in sequence and at intervals along the length direction of the built-in section.

[0015] Furthermore, connecting strips are connected between adjacent shovel plates on the built-in section.

[0016] Furthermore, a plurality of the shoveling and unloading pressure rods are provided on the drill barrel, and the plurality of the shoveling and unloading pressure rods are arranged at intervals along the circumferential direction of the drill barrel.

[0017] Furthermore, a return spring is sleeved on the operating section of the shovel-unloading pressure rod.

[0018] Compared with the prior art, the device for shoveling and unloading the debris of the bored pile rotary drilling barrel provided by the present invention is that when the drill barrel is drilling, the debris is embedded in the cavity of the drill barrel. After the drill barrel is pulled out, the shovel plate is driven to move up and down by operating the shovel unloading pressure rod, and the shovel plate can shovel the debris away from the inner wall of the cavity. Then, the debris can be conveniently dropped from the cavity of the drill barrel by utilizing its own weight, and there is no need to rotate the drill barrel back and forth. During the process of unloading the debris, the drill barrel has low noise, is fast and efficient, and will not cause mechanical damage to the rotary drilling rig. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a partial three-dimensional schematic diagram of the bored pile rotary drilling barrel slag shoveling and unloading device provided by the present invention. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] The implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0022] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] Reference Figure 1 The figure shows a preferred embodiment of the present invention.

[0024] The bored pile rotary drilling drill barrel slag shoveling device comprises a drill barrel 100 and a shoveling pressure rod which moves up and down relative to the drill barrel 100. The drill barrel 100 can be of various types of barrels, such as a straight barrel or a double-bottom pick drill barrel 100, etc., and is not limited to a certain type of drill barrel 100.

[0025] The drill barrel 100 has a cavity for accommodating debris. When the drill barrel 100 is drilling, the debris is placed in the cavity; the upper part of the shovel and unloading pressure rod passes through the top plate 106 of the drill barrel 100 to form an operating section 105 placed outside the cavity, and the lower part of the shovel and unloading pressure rod is placed in the cavity to form an internal section 102; the internal section 102 of the shovel and unloading pressure rod is connected to a shovel plate 101, and the shovel plate 101 is close to the inner wall of the drill barrel 100.

[0026] The above-mentioned bored pile rotary drilling drill barrel debris shoveling and unloading device is that when the drill barrel 100 is drilling, the debris is embedded in the cavity of the drill barrel 100. After the drill barrel 100 is pulled out, the shoveling and unloading pressure rod is operated to drive the shovel plate 101 to move up and down, and the shovel plate 101 can shovel the debris away from the inner wall of the cavity. Then, by utilizing the dead weight of the debris, the debris can be more conveniently dropped from the cavity of the drill barrel 100, and there is no need to rotate the drill barrel 100 back and forth. During the process of unloading the soil, the drill barrel 100 has low noise, is fast and efficient, and will not cause mechanical damage to the rotary drilling rig.

[0027] The shovel plate 101 is in an arc shape along the circumferential direction of the drill tube 100. In this way, the shovel plate 101 is more compatible with the circumferential curvature of the drill tube 100, so that the shovel plate 101 is close to the inner side wall of the drill tube 100 and extends in the circumferential direction of the drill tube 100.

[0028] In this embodiment, in the initial state, the curvature of the shovel plate 101 is consistent with the curvature of the inner wall of the drill tube 100, so that the shovel plate 101 can better cooperate with the drill tube 100 in the circumferential direction. Of course, according to actual needs, the curvature can also be different, or when the shovel plate 101 moves upward or downward, the curvature of the shovel plate 101 and the curvature of the inner wall of the drill tube 100 are different. The specific setting can be determined according to actual needs.

[0029] The shovel board 101 has an outer side facing the inner side wall of the cavity, and there is a gap between the outer side of the shovel board 101 and the inner side wall of the cavity. In this way, while ensuring that the shovel board 101 isolates the dirt from contacting the inner side wall of the drill tube 100, it is also convenient for the shovel board 101 to move up and down in the cavity, and to shovel away the dirt from contacting the inner side wall of the drill tube 100.

[0030] The shovel plate 101 has an inner side surface arranged away from the inner wall of the cavity. The upper part of the inner side surface of the shovel plate 101 is inclined to form an upper inner inclined surface. Along the bottom-up direction, the upper inner inclined surface is inclined toward the inner wall of the cavity, and the upper inner inclined surface passes through to the top of the shovel plate 101. In this way, the top of the shovel plate 101 is pointed, which is convenient for the upward shoveling operation of the shovel plate 101.

[0031] The lower part of the inner side surface of the shovel plate 101 is inclined to form a lower inner inclined surface. Along the top-down direction, the lower inner inclined surface is inclined toward the inner wall of the cavity, and the lower inner inclined surface penetrates to the bottom of the shovel plate 101. In this way, the bottom of the shovel plate 101 is pointed, which is convenient for the downward shoveling operation of the shovel plate 101.

[0032] In this embodiment, the shovel plate 101 has an outer side surface arranged toward the inner wall of the cavity, and the upper part of the outer side surface of the shovel plate 101 is inclined to form an upper outer inclined surface, and along the bottom-to-top direction, the upper outer inner inclined surface is inclined away from the inner wall of the cavity, and the upper outer inclined surface passes through to the top of the shovel plate 101; the lower part of the outer side surface of the shovel plate 101 is inclined to form a lower outer inclined surface, and along the top-to-bottom direction, the lower outer inner inclined surface is inclined away from the inner wall of the cavity, and the lower outer inclined surface passes through to the bottom of the shovel plate 101; in this way, since the top and bottom of the outer side surface of the shovel plate 101 are both inclined and deviate from the inner wall of the cavity, the shovel plate 101 avoids collision with foreign objects on the inner wall of the cavity during the up and down movement, which facilitates the up and down movement of the shovel plate 101.

[0033] In this embodiment, a protrusion 107 is provided on the inner side of the shovel plate 101, and the inner section 102 of the shovel unloading pressure rod is connected to the protrusion 107, so that the connection between the shovel unloading pressure rod and the shovel plate 101 is convenient. Of course, the shovel unloading pressure rod can also be connected to the shovel plate 101 through other structures, which can be determined according to actual conditions.

[0034] A plurality of shovel plates 101 are connected to the built-in section 102 of the shovel unloading pressure rod, and the plurality of shovel plates 101 on the built-in section 102 are arranged in sequence and at intervals along the length direction of the built-in section 102. In this way, a plurality of shovel plates 101 are formed in the length direction of the built-in section 102, and when the drill tube 100 is drilling, the plurality of shovel plates 101 can form a plurality of positions of obstruction, reduce the contact between the slag and the inner side wall of the drill tube 100, and when the soil needs to be unloaded, the shovel plates 101 are moved up and down, so that the plurality of shovel plates 101 move up and down at the same time, and the soil can be shoveled at a plurality of positions, thereby increasing the separation area between the slag and the inner side wall of the drill tube 100.

[0035] A connecting strip 103 is connected between adjacent shovel plates 101 on the built-in section 102 . By providing the connecting strip 103 , the adjacent shovel plates 101 can be formed into an integral structure, so that the multiple shovel plates 101 can move synchronously.

[0036] A plurality of shovel-unloading pressure rods are provided on the drill barrel 100, and the plurality of shovel-unloading pressure rods are arranged at intervals along the circumferential direction of the drill barrel 100, and the above-mentioned shovel plates 101 are respectively provided on the built-in sections 102 of the respective shovel-unloading pressure rods. In this way, the circumferential arrangement of the shovel plates 101 is ensured in the circumferential direction of the drill barrel 100, thereby ensuring the shoveling away of the debris from the inner wall of the drill barrel 100 in the circumferential direction; of course, the plurality of shovel plates 101 can form a closed loop arrangement in the circumferential direction of the drill barrel 100, or can form an open loop arrangement, that is, form a ring with a gap.

[0037] In this embodiment, the shovel plates 101 on the inner sections 102 of adjacent shovel unloading pressure rods are arranged in an up-down staggered manner, so that multiple positions of shovel separation are formed between the slag and the inner side wall of the drill tube 100, so that the slag can fall from the cavity of the drill tube 100. Of course, the shovel plates 101 on the inner sections 102 of adjacent shovel unloading pressure rods can also be arranged in a flush manner, and the specific arrangement depends on actual needs.

[0038] The operating section 105 of the shovel unloading lever is sleeved with a return spring 104, so that in the process of unloading soil, by operating the operating section 105 of the shovel unloading lever, the entire shovel unloading lever is driven to move up and down, thereby driving the shovel plate 101 to move up and down. When the shovel unloading lever is pressed down, the spring is compressed, and after the pressure on the return spring 104 is released, the shovel unloading lever can be automatically reset under the action of the spring.

[0039] In addition, a sleeve 108 is provided on the top plate 106 of the drill tube 100, and the operating section 105 of the shovel unloading pressure rod passes through the sleeve and moves up and down in the sleeve 108, so that the sleeve 108 can play a guiding and positioning role in the movement of the shovel unloading pressure rod.

[0040] In actual operation, the above-mentioned cast-in-place pile rotary drilling barrel slag shoveling device can be carried out through the following steps:

[0041] 1) According to the size of the drill tube 100 of the rotary drilling rig, purchase and manufacture matching components such as the shovel plate 101, sleeve 108, shovel unloading pressure rod, and return spring 104;

[0042] 2) Install the components on the drill tube 100, lift the drill tube 100, and at the same time, the drill pipe outer casing chassis of the drilling rig presses the pressure rod to open the bottom soil outlet of the drill tube 100, and presses the shovel unloading pressure rod, and drives the shovel plate 101 installed on the shovel unloading pressure rod to shovel about 10cm to 20cm along the inner wall of the drill tube 100 until the lower limit position of the shovel plate 101. After the drill tube 100 is lowered and the shovel unloading pressure rod is released, the return spring 104 can return the shovel unloading pressure rod and the shovel plate 101 to the upper limit position;

[0043] 3) During the construction of bored pile rotary drilling, except that there is no need to throw away the soil, other operations include rotary drilling, lifting the drill tube 100, rotating the turntable, lifting the drill tube 100 to open the bottom slag outlet of the drill tube 100, pressing down the drill tube 100 to close the bottom slag outlet of the drill tube 100 after unloading the soil, rotating the turntable, extending the drill tube 100 into the pile hole to continue drilling, etc., which can all be performed according to the existing technology. Among them, while lifting the drill tube 100 to open the bottom slag outlet of the drill tube 100, the slag in the drill tube 100 should be easier to fall off through the action of the bored pile rotary drilling drill tube slag shoveling and unloading device. If there is still a lot of residual slag, it can be shoveled again by lifting the drill tube 100 until the slag in the drill tube 100 is satisfactorily removed.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for shoveling and unloading soil from a bored pile rotary drilling tube, characterized in that: The invention comprises a drill tube and a shoveling and unloading pressure rod which moves up and down relative to the drill tube, wherein the drill tube has a cavity for accommodating soil, the upper portion of the shoveling and unloading pressure rod passes through the top plate of the drill tube to form an operating section arranged outside the cavity, and the lower portion of the shoveling and unloading pressure rod is arranged in the cavity to form an internal section; a shoveling plate is connected to the internal section of the shoveling and unloading pressure rod, and the shoveling plate is close to the inner wall of the drill tube; Along the circumferential direction of the drill tube, the shovel plate is in the shape of an arc sheet; The shovel plate has an inner side surface arranged away from the inner side wall of the cavity and an outer side surface arranged toward the inner side wall of the cavity; the upper portion of the inner side surface of the shovel plate is inclined to form an upper inner inclined surface, and the upper portion of the outer side surface of the shovel plate is inclined to form an upper outer side surface; along the bottom-to-top direction, the upper inner inclined surface is arranged obliquely toward the inner side wall of the cavity, and the upper outer side surface is arranged obliquely away from the inner side wall of the cavity; The lower part of the inner side surface of the shovel plate is inclined to form a lower inner inclined surface, and the lower part of the outer side surface of the shovel plate is inclined to form a lower outer side surface; along the top-to-bottom direction, the lower inner inclined surface is arranged obliquely toward the inner side wall of the cavity, and the lower outer side surface is arranged obliquely away from the inner side wall of the cavity; A convex block is arranged on the inner side surface of the shovel plate, and the inner section of the shovel pressure relief rod is connected to the convex block; A plurality of shovel plates are connected to the built-in section of the shovel unloading pressure rod, and the plurality of shovel plates on the built-in section are sequentially spaced along the length direction of the built-in section; The top and bottom of the outer side surface of the shovel plate are both inclined and deviate from the inner wall of the cavity. When the shovel plate moves up and down, it avoids collision with foreign objects on the inner wall of the cavity, which facilitates the up and down movement of the shovel plate. The drill pipe outer casing chassis of the drilling rig presses the opening pressure rod of the drill tube bottom slag outlet, and at the same time presses the shoveling pressure rod, and drives the shoveling plate installed on the shoveling pressure rod to shovel along the inner wall of the drill tube.

2. The device for removing soil from the bored pile rotary drilling tube according to claim 1, characterized in that: When the shovel plate is in an initial state, the curvature of the shovel plate is consistent with the curvature of the inner side wall of the drill tube.

3. The device for removing soil from the bored pile rotary drilling tube according to claim 1, characterized in that: The shovel plate has an outer side surface facing the inner side wall of the cavity, and a gap is formed between the outer side surface of the shovel plate and the inner side wall of the cavity.

4. The device for removing soil from a bored pile rotary drilling tube according to any one of claims 1 to 3, characterized in that: A connecting strip is connected between adjacent shovel plates on the built-in section.

5. The device for removing soil from the bored pile rotary drilling tube according to any one of claims 1 to 3, characterized in that: The drill tube is provided with a plurality of shoveling and unloading pressure rods, which are arranged at intervals along the circumferential direction of the drill tube.

6. The device for removing soil from the bored pile rotary drilling tube according to any one of claims 1 to 3, characterized in that: A return spring is sleeved on the operating section of the shoveling and unloading pressure rod.

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