Method and equipment for cleaning drill bit of slag salvaging bucket of rotary drilling rig

Abstract

The invention discloses a method and equipment for cleaning a drill bit of a slag salvaging bucket of a rotary drilling rig, and the method comprises the following steps: before drilling, a lifting type cleaning piece is slidably mounted in the drill bit of the slag salvaging bucket of the rotary drilling rig, and comprises a cleaning steel plate and a longitudinal pull rod vertically connected to the cleaning steel plate; the cleaning steel plate slides to the opposite end away from the slag dredging hopper drill bit outlet end through the longitudinal pull rod; after drilling, providing a residue soil box with an upper opening, aligning a residue salvaging bucket drill bit to the residue soil box, opening a cover plate of the residue salvaging bucket drill bit, installing a pull rod connecting piece on the residue soil box, and connecting the pull rod connecting piece with a longitudinal pull rod; and the muck box is kept immovable, the slag salvaging bucket drill bit is lifted upwards, and the cleaning steel plate slides downwards to the outlet end along the slag salvaging bucket drill bit, so that the soil in the slag salvaging bucket drill bit is cleaned out, and the soil falls and is collected in the muck box. The device has the advantages of being small in cleaning noise pollution, convenient to operate and clean in cleaning.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a method and equipment for cleaning a slag bucket drill bit of a rotary drilling rig. Background Art

[0002] During pile foundation construction, using a rotary drilling rig to drill holes is a common construction technique. However, during the drilling process, the drill bit must constantly be cleaned of soil adhering to the scrap bucket. A common practice in the field is to control the forward and reverse rotation of the rotary drilling rig to drive the scrap bucket drill bit, thereby ejecting the soil from the scrap bucket drill bit through centrifugal force. This is known as a bucket-swinging method. However, this method has the disadvantage that the rotation of the scrap bucket drill bit generates severe vibrations, resulting in high noise levels and environmental noise. Furthermore, the splashing of soil pollutes the construction site and surrounding environment. Summary of the Invention

[0003] The purpose of the present invention is to provide a method and equipment for cleaning the slag bucket drill bit of a rotary drilling rig, so as to solve the problems that the slag bucket drill bit makes a loud noise when cleaning the soil by swinging the bucket, causing noise pollution to the surrounding environment, and the splashing of the thrown soil causes environmental pollution to the construction site and the surrounding environment.

[0004] In order to solve the above technical problems, the present invention provides a method for cleaning a slag bucket drill bit of a rotary drilling rig, comprising:

[0005] Before drilling, a lifting cleaning piece is slidably installed in the slag bucket drill bit of the rotary drilling rig. The lifting cleaning piece includes a cleaning steel plate and a longitudinal pull rod vertically connected to the cleaning steel plate. The cleaning steel plate is slid to the opposite end away from the outlet end of the slag bucket drill bit through the longitudinal pull rod;

[0006] After drilling, a slag box with an upper opening is provided, the slag bucket drill bit is aligned with the slag box, the cover of the slag bucket drill bit is opened, a tie rod connector is installed on the slag box, and the tie rod connector is connected to the longitudinal tie rod;

[0007] Keep the slag box still, lift the slag bucket drill bit upward, and slide the cleaning steel plate down along the slag bucket drill bit to the outlet end to clean out the soil in the slag bucket drill bit and collect it in the slag box.

[0008] Furthermore, the present invention provides a method for cleaning the slag bucket drill bit of a rotary drilling rig, wherein the lifting-type cleaning component also includes a limiting component arranged in the slag bucket drill bit, and the limiting component is arranged at the outlet end of the slag bucket drill bit; when the cleaning steel plate slides downward along the slag bucket drill bit to the outlet end, it is restricted on the limiting component to clean out the soil in the slag bucket drill bit and fall it down to be collected in the slag box.

[0009] Furthermore, the present invention provides a method for cleaning the slag bucket drill bit of a rotary drilling rig, wherein the pull rod connector includes a base detachably connected to the slag box and a slope panel arranged on the base; the pull rod connector is connected to the longitudinal pull rod through the base, and when the cleaning steel plate slides downward along the slag bucket drill bit, the soil in the slag bucket drill bit is pushed downward and falls onto the slope panel, and the fallen soil is guided by the slope panel to be collected in the slag box.

[0010] Furthermore, the rotary drilling rig slag bucket drill bit cleaning method provided by the present invention disconnects the longitudinal pull rod and the pull rod connector after the soil in the slag bucket drill bit is cleaned, and the cleaning steel plate is restored to slide to the opposite end away from the slag bucket drill bit outlet end.

[0011] In order to solve the above technical problems, the present invention also provides a rotary drilling rig slag bucket drill bit cleaning device, comprising:

[0012] The pull-type cleaning piece is used to be installed in the slag bucket drill bit of the rotary drilling rig before drilling, and includes a cleaning steel plate slidably installed in the slag bucket drill bit and a longitudinal pull rod vertically connected to the cleaning steel plate;

[0013] A slag box with an opening at the top for recovering the soil cleaned from the slag bucket drill bit;

[0014] The pull rod connector is detachably mounted on the slag box and is used for detachably connecting with the longitudinal pull rod.

[0015] Furthermore, in the rotary drilling rig slag bucket drill bit cleaning method provided by the present invention, the pulling-type cleaning member also includes a limiting member arranged in the slag bucket drill bit, and the limiting member is arranged at the outlet end of the slag bucket drill bit.

[0016] Furthermore, the present invention provides a method for cleaning a drill bit of a rotary drilling rig slag bucket, wherein the pull rod connector includes a base detachably connected to the slag box and a slope panel arranged on the base, and the base is used to detachably connect the pull rod connector to the longitudinal pull rod.

[0017] Compared with the prior art, the rotary drilling rig slag bucket drill bit cleaning method and equipment provided by the present invention have the following beneficial effects:

[0018] After the slag bucket drill bit of the rotary drilling rig has drilled a hole, the slag bucket drill bit is aligned with the slag box, and the cover of the slag bucket drill bit is opened. The loose soil, stones, etc. in the slag bucket drill bit fall into the slag box by gravity for recovery, exposing the longitudinal pull rod in the slag bucket drill bit. The longitudinal pull rod is connected to the slag box through the pull rod connector. The slag box is kept stationary, and the slag bucket drill bit is lifted upward to slide the cleaning steel plate down along the slag bucket drill bit to the outlet end, so as to push the soil stuck in the slag bucket drill bit downward and let it fall by gravity and be collected in the slag box. The present invention aims to clean the mud stuck in the drill bit of the slag bucket, which has the advantages of low noise pollution, easy operation and clean cleaning. There is no need to repeatedly swing the bucket to clean the mud, which improves the cleaning efficiency; avoids the problem of residue in the drill bit of the slag bucket when cleaning the mud stuck in the drill bit of the slag bucket by swinging the bucket, resulting in incomplete cleaning; also avoids the problem of loud noise and noise pollution to the surrounding environment when cleaning the mud by swinging the bucket; also avoids the problem of splashing of mud when cleaning the mud by swinging the bucket, causing environmental pollution to the construction site and the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the slag bucket drill bit;

[0020] Figure 2 It is a structural diagram of the cover plate in the open state after the pull-up cleaning piece is installed in the slag bucket drill bit;

[0021] Figure 3 It is a structural diagram of the cover plate in the closed state after the pull-type cleaning piece is installed in the slag bucket drill bit;

[0022] Figure 4 This is a schematic diagram of the structure of the slag bucket drill bit in a state where the inside is filled with soil after drilling;

[0023] Figure 5 This is a structural diagram of the slag bucket drill bit with the cover plate in the open state and aligned with the slag box after drilling;

[0024] Figure 6 It is a structural diagram of loose soil falling into the muck box by gravity for recycling;

[0025] Figure 7 This is a structural diagram of connecting the slag bucket drill bit to the slag box through a longitudinal tie rod and a tie rod connector;

[0026] Figure 8 This is a structural diagram of lifting the drill bit of the slag bucket upwards to clean the sticky mud inside through the lifting cleaning piece and recover it into the slag box;

[0027] Figure 9 It is a structural diagram for disconnecting the slag bucket drill bit from the slag box;

[0028] Figure 10 This is a front view structural diagram of the rotary drilling rig slag bucket drill bit cleaning equipment and its installation status;

[0029] Figure 11 This is a side view structural diagram of the rotary drilling rig slag bucket drill bit cleaning equipment and its installation status;

[0030] Figure 12 This is a three-dimensional perspective structural diagram of the pull rod connector installed on the muck box;

[0031] As shown in the figure:

[0032] 100. Cleaning equipment for the drill bit of the slag bucket of a rotary drilling rig;

[0033] 110. Pull-type cleaning piece, 111. Cleaning steel plate, 112. Longitudinal pull rod, 113. Limiting piece;

[0034] 120, tie rod connector, 121, base, 122, inclined panel, 123, latch;

[0035] 130. Muck box;

[0036] 200, slag bucket drill bit, 201, drill barrel, 202, cover plate;

[0037] 300. Soil. DETAILED DESCRIPTION

[0038] The present invention will be described in detail below with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are all in a very simplified form and are not accurately scaled, and are only used to facilitate and clearly illustrate the embodiments of the present invention.

[0039] Please refer to Figures 1 to 9 The embodiment of the present invention provides a method for cleaning a slag bucket drill bit of a rotary drilling rig, comprising:

[0040] Step S1, please focus on Figures 1 to 3 Before drilling, a pull-type cleaning member 110 is slidably installed in the slag bucket drill bit 200 of the rotary drilling rig. The pull-type cleaning member 110 includes a cleaning steel plate 111 and a longitudinal pull rod 112 vertically connected to the cleaning steel plate 111. The cleaning steel plate 111 is slid to the opposite end away from the outlet end of the slag bucket drill bit 200 by the longitudinal pull rod 112. Figure 2 The example shows the initial position of the cleaning steel plate 111. After the pull-type cleaning member 110 is installed in the slag bucket drill bit 200, the cover plate 202 needs to be closed. In order to improve the cleaning effect, the cross section of the cleaning steel plate 111 matches the cross section of the slag bucket drill bit 200.

[0041] Step S2, please refer to Figures 4 to 7 After drilling, the slag bucket drill bit 200 is filled with soil. A slag box 130 with an upper opening is provided. The slag bucket drill bit 200 is aligned with the slag box 130 and the cover of the slag bucket drill bit 200 is opened. At this time, if there is loose soil, stones, etc. in the slag bucket drill bit 200, they will fall into the slag box 130 by gravity for recovery. Figures 5 and 6 The example shows a situation where there is loose soil. After the loose soil falls, the soil remaining in the slag bucket drill bit 200 sticks to it; then the pull rod connector 120 is installed on the slag box 130, and the pull rod connector 120 is connected to the longitudinal pull rod 112.

[0042] Step S3, please refer to Figure 8 Keeping the slag box 130 stationary, the slag bucket drill bit 200 is lifted upward, and the cleaning steel plate 111 slides downward along the slag bucket drill bit 200 to the outlet end, thereby cleaning out the dirt inside the slag bucket drill bit 200 and causing it to fall and be collected in the slag box 130. At this point, the sticky dirt inside the slag bucket drill bit 200 is collected in the slag box 130. If one lift is insufficient to clean the dirt, the slag bucket drill bit 200 can be slid downward and then lifted upward to repeatedly clean the sticky dirt inside the slag bucket drill bit 200. That is, the cleaning steel plate 111 pushes downward to clean the dirt inside the slag bucket drill bit 200.

[0043] In order to facilitate the subsequent use of the slag bucket drill bit 200 and the soil cleaning operation, the rotary drilling rig slag bucket drill bit cleaning method provided in the embodiment of the present invention may further include:

[0044] Step S4, please refer to Figure 9 After the soil in the slag bucket drill bit 200 is cleaned, the connection between the longitudinal pull rod 112 and the pull rod connector 120 is disconnected, and the cleaning steel plate 111 is restored to the opposite end away from the outlet end of the slag bucket drill bit 200, that is, the lifting cleaning piece 110 is restored to the original installation position, so that the slag bucket drill bit 200 equipped with the lifting cleaning piece 110 can be used for soil cleaning after subsequent drilling.

[0045] Please focus on Figure 2In order to prevent the lifting cleaning member 110 from detaching from the slag bucket drill bit 200 when sliding downward, affecting the cleaning efficiency and subsequent use, the rotary drilling rig slag bucket drill bit cleaning method provided by the embodiment of the present invention, the lifting cleaning member 110 installed in step S1 may also include a limit member 113 set in the slag bucket drill bit 200, and the limit member 113 is set at the outlet end of the slag bucket drill bit 200; when the cleaning steel plate 111 slides downward along the slag bucket drill bit 200 to the outlet end, it is restricted on the limit member 113 to clean out the soil in the slag bucket drill bit 200 and fall it to be collected in the slag box 130. The limiter 113 limits the maximum travel of the cleaning steel plate 111, preventing the cleaning steel plate 111 from being separated from the slag bucket drill bit 200. The limiter 113 can be a plurality of evenly distributed square pads of equal height, or a ring-shaped pad. The ring-shaped pad has the advantage of good stability and can fit the surface of the cleaning steel plate 111. The limiter 113 can also ensure the stability and safety of the soil cleaning process in the slag bucket drill bit 200.

[0046] In order to prevent the lower surface of the cleaning steel plate 111 from sticking to mud, the lower surface can be coated with a smooth coating. In order to increase the service life of the cleaning steel plate 111 and prevent the wear of the lower surface caused by mud after repeated use, the lower surface of the cleaning steel plate 111 can be coated with a wear-resistant coating. The two coatings can be used in combination, in which case the wear-resistant coating is applied first and the smooth coating is applied later.

[0047] Please focus on Figure 7 、 Figure 11 and Figure 12 In order to smoothly recover the soil pushed out by the cleaning steel plate 111 into the slag box 130, the embodiment of the present invention provides a method for cleaning the slag bucket drill bit of a rotary drilling rig. The pull rod connector 120 includes a base 121 detachably connected to the slag box 130 and a slope panel 122 provided on the base 121; the pull rod connector 120 is connected to the longitudinal pull rod 112 through the base 121. When the cleaning steel plate 111 slides downward along the slag bucket drill bit 200, the soil in the slag bucket drill bit 200 is pushed downward and falls onto the slope panel 122. The slope panel 122 guides the fallen soil to be collected in the slag box 130.

[0048] Please focus on Figures 10 and 11 The embodiment of the present invention further provides a rotary drilling rig slag bucket drill bit cleaning device 100, comprising a lifting cleaning member 110, a pull rod connecting member 120 and a slag box 130, wherein:

[0049] The pull-type cleaning member 110 is installed in the scrap bucket drill bit 200 of the rotary drilling rig before drilling. It includes a cleaning steel plate 111 that is slidably mounted in the scrap bucket drill bit 200 and a longitudinal pull rod 112 vertically connected to the cleaning steel plate 111. The pull-type cleaning member 110 may also include a stopper 113 disposed in the scrap bucket drill bit 200, and the stopper 113 is located at the outlet end of the scrap bucket drill bit 200.

[0050] The slag box 130 has an opening at its upper portion for recovering the soil cleaned out of the slag bucket drill bit 200 .

[0051] The tie rod connector 120 is detachably mounted on the slag box 130 and is configured to be detachably connected to the longitudinal tie rod 112. The tie rod connector 120 includes a base 121 detachably connected to the slag box 130 and a sloped panel 122 disposed on the base 121. The base 121 is configured to detachably connect the tie rod connector 120 to the longitudinal tie rod 112. The sloped panel 122 is detachably connected to the slag box 130 via a latch 123. The base 121 may be a square tube, and the longitudinal tie rod 112 may also be a square tube. The two may be telescopically nested and connected by bolts. The base 121 may also be a circular tube, and the corresponding longitudinal tie rod 112 may be a cylinder or a circular tube. In this case, the base 121 and the longitudinal tie rod 112 may also be telescopically nested and connected by bolts. The base 121 and the longitudinal tie rod 112 may also have a matching serrated structure for detachable connection.

[0052] The embodiment of the present invention provides a method and device for cleaning the slag bucket drill bit of a rotary drilling rig. After the slag bucket drill bit 200 of the rotary drilling rig has drilled a hole, the slag bucket drill bit 200 is aligned with the slag box 130, and the cover of the slag bucket drill bit 200 is opened. Then, the loose soil, stones, etc. in the slag bucket drill bit 200 fall into the slag box 130 by gravity for recovery, exposing the longitudinal pull rod 112 in the slag bucket drill bit 200. The longitudinal pull rod 112 is connected to the slag box 130 through the pull rod connector 120, and the slag box 130 is kept stationary. The slag bucket drill bit 200 is lifted upward, and the cleaning steel plate 111 is slid downward along the slag bucket drill bit 200 to the outlet end, so that the slag bucket drill bit 200 is cleaned. The soil stuck in the head 200 is pushed out downward and falls by gravity to be collected in the slag box 130, thereby achieving the purpose of cleaning the soil stuck in the slag bucket drill bit 200. It has the advantages of low noise pollution, easy operation and clean cleaning. There is no need to repeatedly swing the bucket to clean the soil, which improves the cleaning efficiency. It avoids the problem of residue in the slag bucket drill bit 200 and incomplete cleaning when cleaning the slag bucket drill bit 200 by swinging the bucket. It also avoids the problem of loud noise and noise pollution to the surrounding environment when cleaning the soil by swinging the bucket. It also avoids the problem of splashing soil when cleaning the soil by swinging the bucket and causing environmental pollution to the construction site and the surrounding environment.

[0053] The embodiment of the present invention provides a method and equipment for cleaning the slag bucket drill bit of a rotary drilling rig, wherein the rotary drilling rig slag bucket drill bit cleaning equipment 100 is composed of a lifting cleaning part 110, a pull rod connecting part 120 and a slag box 130. The structure is simple, and the lifting cleaning part 110 is connected to the slag box 130 through the pull rod connecting part 120. The pull rod connecting part 120 slides downward to push the soil in the slag bucket drill bit 200. It is easy to operate, realizes low-noise cleaning of the soil in the slag bucket drill bit 200, and has the advantage of good environmental protection.

[0054] The present invention is not limited to the specific embodiments described above. Obviously, the embodiments described above are only some embodiments of the embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention described, all other embodiments obtained by ordinary technicians in this field fall within the scope of protection of the present invention. Those skilled in the art can make other levels of modifications and changes to the present invention. In this way, if these modifications and changes of the present invention fall within the scope of the claims of the present invention, the present invention is also intended to include these changes and changes.

Claims

1. A method for cleaning a drill bit of a rotary drilling rig slag bucket, characterized in that: include: Before drilling, a lifting cleaning piece is slidably installed in the slag bucket drill bit of the rotary drilling rig. The lifting cleaning piece includes a cleaning steel plate and a longitudinal pull rod vertically connected to the cleaning steel plate. The cleaning steel plate is slid to the opposite end away from the outlet end of the slag bucket drill bit through the longitudinal pull rod; After drilling, a slag box with an upper opening is provided, the slag bucket drill bit is aligned with the slag box, the cover of the slag bucket drill bit is opened, a tie rod connector is installed on the slag box, and the tie rod connector is connected to the longitudinal tie rod; Keep the slag box still, lift the slag bucket drill bit upward, and slide the cleaning steel plate down along the slag bucket drill bit to the outlet end to clean out the soil in the slag bucket drill bit and collect it in the slag box.

2. The method for cleaning the drill bit of the rotary drilling rig slag bucket according to claim 1, characterized in that: The lifting cleaning piece also includes a limiting piece arranged in the slag bucket drill bit, and the limiting piece is arranged at the outlet end of the slag bucket drill bit; when the cleaning steel plate slides down along the slag bucket drill bit to the outlet end, it is restricted on the limiting piece to clean out the soil in the slag bucket drill bit and fall it down to be collected in the slag box.

3. The method for cleaning the drill bit of the rotary drilling rig slag bucket according to claim 1 or 2, characterized in that: The pull rod connecting piece includes a base detachably connected to the slag box and a slope panel arranged on the base; the pull rod connecting piece is connected to the longitudinal pull rod through the base, and when the cleaning steel plate slides downward along the slag bucket drill bit, the soil in the slag bucket drill bit is pushed downward and falls onto the slope panel, and the fallen soil is guided by the slope panel to be collected in the slag box.

4. The method for cleaning the drill bit of a rotary drilling rig slag bucket according to claim 1, characterized in that: After the soil in the slag bucket drill bit is cleaned, the connection between the longitudinal pull rod and the pull rod connector is disconnected, and the cleaning steel plate is restored to slide to the opposite end away from the outlet end of the slag bucket drill bit.

5. A rotary drilling rig slag bucket drill bit cleaning device, characterized in that: include: The pull-type cleaning piece is used to be installed in the slag bucket drill bit of the rotary drilling rig before drilling, and includes a cleaning steel plate slidably installed in the slag bucket drill bit and a longitudinal pull rod vertically connected to the cleaning steel plate; A slag box with an opening at the top for recovering the soil cleaned from the slag bucket drill bit; The pull rod connector is detachably mounted on the slag box and is used for detachably connecting with the longitudinal pull rod.

6. The method for cleaning the drill bit of the rotary drilling rig slag bucket according to claim 5, characterized in that: The lifting cleaning piece further comprises a limiting piece arranged in the slag bucket drill bit, and the limiting piece is arranged at the outlet end of the slag bucket drill bit.

7. The method for cleaning the drill bit of the rotary drilling rig slag bucket according to claim 5 or 6, characterized in that: The pull rod connecting piece includes a base detachably connected to the slag box and a slope panel arranged on the base, and the base is used to detachably connect the pull rod connecting piece to the longitudinal pull rod.

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