Anchoring device for a horizontal directional drilling machine

Abstract

The present application belongs to the field of anchor technology of drilling rig, especially relates to a horizontal directional drilling rig anchor device, including anchor frame, the both sides of anchor frame are fixedly installed with guard frame, anchor assembly, including the support plate of sliding setting in the cavity of guard frame, the side of support plate is rotatably installed with anchor rod through bearing, the other side of support plate is provided with rotating part, rotating part is used to drive anchor rod to rotate and go deep into soil, the middle part of support plate is provided with lifting part, unfolding assembly, including the accommodating cavity of being opened in the middle part of anchor rod, the inner cavity of accommodating cavity is provided with unfolding part, and the ejection part of being set in the inside of accommodating cavity, the present application can drive support plate and anchor rod, rotating part as a whole to move down through lifting part, cooperate rotating part drive anchor rod to rotate and go deep into soil, ensure the stability of anchor fixed position, effectively prevent horizontal directional drilling rig from displacement and wobble in the construction process, guarantee construction efficiency.

Description

Technical Field

[0001] This invention belongs to the field of drilling rig anchoring technology, and particularly relates to an anchoring device for a horizontal directional drilling rig. Background Technology

[0002] Horizontal directional drilling rigs are core equipment for trenchless underground pipeline construction. During operation, they rely on anchoring devices to secure the rig body. The stability of the anchoring directly affects the construction accuracy, efficiency, and safety. Currently, conventional anchoring devices on the market have the following problems: Traditional anchoring devices often use a single anchor bolt screwed into the soil for fixation. The small contact area between the anchor bolt and the soil, relying solely on friction between the bolt and the soil for anchoring force, makes them prone to loosening and pull-out in soft soil, quicksand, and other loose strata. The continuous vibrations generated during drilling further exacerbate anchoring failure, leading to machine displacement and swaying, reducing drilling accuracy and posing safety hazards. Furthermore, existing anchoring devices lack an anchor bolt deployment reinforcement structure, preventing the anchor bolt from expanding its contact area with the soil after screwing it in, resulting in insufficient anchoring strength and difficulty meeting the operational requirements of high-power drilling rigs. Long-term use can lead to anchor displacement. In addition, when the anchor bolt is screwed out of the soil, it adheres to a large amount of mud and debris, making manual cleaning inefficient. Clumped mud can hinder the next screwing in, and residual soil can corrode the anchor bolt surface, shortening the device's lifespan and increasing maintenance costs. Therefore, we propose an anchoring device for horizontal directional drilling rigs. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned technical problems by providing an anchoring device for a horizontal directional drilling rig.

[0004] In view of this, the present invention provides an anchoring device for a horizontal directional drilling rig, including an anchoring frame, with protective frames fixedly installed on both sides of the anchoring frame, an anchoring assembly including a support plate slidably disposed in the inner cavity of the protective frame, an anchoring rod rotatably mounted on one side of the support plate via a bearing, and a rotating component disposed on the other side of the support plate, the rotating component being used to drive the anchoring rod to rotate and penetrate deeper into the soil, a lifting component being disposed in the middle of the support plate, an unfolding assembly including a receiving cavity opened in the middle of the anchoring rod, an unfolding component disposed in the inner cavity of the receiving cavity, and an ejector disposed inside the receiving cavity, the ejector being used to eject the unfolding component from the inner cavity of the anchoring rod when the anchoring rod rotates to the position, and an auxiliary cleaning assembly including a through groove disposed on the anchoring frame, and a cleaning component disposed above the through groove.

[0005] Furthermore, the rotating component includes a rotary motor disposed below the support plate on the side away from the anchor rod. The drive end of the rotary motor is equipped with a second pulley, and the upper end of the anchor rod is fixedly equipped with a first pulley. The first pulley and the second pulley are connected by a transmission belt.

[0006] Furthermore, the lifting component includes a servo motor fixedly installed on the upper end of the protective frame, a lead screw installed on the drive end of the servo motor, a lead screw sleeve fixedly installed in the middle of the support plate, a fixing plate welded to the inner cavity of the protective frame, a sliding groove opened on the side of the fixing plate near the support plate, and a slider fixedly installed on the side of the support plate near the sliding groove.

[0007] Furthermore, the size of the lead screw is adapted to the size of the lead screw sleeve, and the lead screw and the lead screw sleeve are threadedly connected; the size of the slider is adapted to the size of the slide groove, and the slider and the slide groove are slidably connected.

[0008] Furthermore, the unfolding component includes a storage groove formed in the inner wall of the receiving cavity. The inner cavity of the storage groove is provided with a fixing strip. The size of the fixing strip is adapted to the size of the storage groove, and the fixing strip is movably connected to the storage groove. Arc-shaped plates are provided on both sides of the inner cavity of the receiving cavity, and the outer side of the arc-shaped plates is fixedly connected to the fixing strip.

[0009] Furthermore, multiple springs are fixedly installed on the outer side of the arc-shaped plate, and the other end of the springs is fixedly connected to the inner wall of the receiving cavity.

[0010] Furthermore, the ejector includes a fixing rod disposed in the inner cavity of the receiving cavity. The upper end of the fixing rod is fixedly connected to the upper end of the inner cavity of the protective frame. Wedge blocks are fixedly installed on both sides of the lower end of the fixing rod. A strip groove is opened in the middle of the arc plate, and the size of the strip groove is adapted to the size of the wedge block.

[0011] Furthermore, the cleaning component includes a gear fixedly installed at the lower end of the lead screw, a toothed ring slidably installed at the upper end of the through groove, the gear meshing with the toothed ring, and a brush ring detachably installed on the inner side of the toothed ring, the size of which is adapted to the outer side of the anchor rod.

[0012] The beneficial effects of this invention are: The system can move the support plate, anchor rod, and rotating component downwards as a whole via the lifting component, and then drive the anchor rod to rotate and penetrate deeper into the soil, ensuring the stability of the anchor position and effectively preventing displacement and shaking of the horizontal directional drilling rig during construction, thus ensuring construction efficiency. Furthermore, after the anchor rod has rotated into position, the unfolding component can be pushed out of the receiving cavity by the ejector component, further increasing the contact area between the anchor rod and the soil, enhancing the anchoring force, preventing the anchor rod from loosening in the soil, and further strengthening the anchoring effect. Additionally, the cleaning component can promptly clean the unscrewed and retracted anchor rod, removing soil or debris adhering to its surface to prevent soil caking from affecting the next screwing-in of the anchor rod, while also preventing soil corrosion of the anchor rod, extending its service life, reducing manual cleaning workload, and improving construction efficiency. Attached Figure Description

[0013] Figure 1 This is a first-view structural schematic diagram of an anchoring device for a horizontal directional drilling rig proposed in this invention. Figure 2 This is a second-view structural schematic diagram of an anchoring device for a horizontal directional drilling rig proposed in this invention. Figure 3 This is a schematic diagram of the anchoring assembly and deployment assembly of an anchoring device for a horizontal directional drilling rig proposed in this invention. Figure 4 This is a schematic diagram of the anchoring components and auxiliary cleaning components of an anchoring device for a horizontal directional drilling rig proposed in this invention. Figure 5 This is a schematic diagram of the unfolded component structure of the anchoring device for a horizontal directional drilling rig proposed in this invention; Figure 6 yes Figure 5 A magnified view of part A; Figure 7 This is a schematic diagram of the arc-shaped plate structure of the anchoring device for a horizontal directional drilling rig proposed in this invention; The markings in the diagram are as follows: 1. Anchoring frame; 11. Protective frame; 12. Fixing plate; 13. Slide groove; 14. Support plate; 15. Lead screw; 16. Lead screw sleeve; 17. Servo motor; 2. Anchoring rod; 21. First pulley; 22. Rotary motor; 23. Second pulley; 24. Transmission belt; 25. Gear; 26. Gear ring; 27. Brush ring; 28. Through groove; 3. Fixing rod; 31. Storage groove; 32. Fixing strip; 33. Arc plate; 34. Strip groove; 35. Spring; 36. Wedge block; 37. Receiving cavity. Detailed Implementation

[0014] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0015] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0016] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0017] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0018] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0019] Reference Figures 1 to 7 An anchoring device for a horizontal directional drilling rig includes an anchoring frame 1, with protective frames 11 fixedly installed on both sides of the anchoring frame 1; an anchoring assembly including a support plate 14 slidably disposed within the cavity of the protective frame 11; an anchoring rod 2 rotatably mounted on one side of the support plate 14 via a bearing; a rotating component on the other side of the support plate 14 for driving the anchoring rod 2 to rotate and penetrate deeper into the soil; a lifting component in the middle of the support plate 14; an unfolding assembly including a receiving cavity 37 opened in the middle of the anchoring rod 2; an unfolding component disposed within the cavity of the receiving cavity 37; and an ejector component disposed within the cavity of the receiving cavity 37 for ejecting the unfolding component from the cavity of the anchoring rod 2 as the anchoring rod 2 rotates into position; and an auxiliary cleaning assembly including a through groove 28 disposed on the anchoring frame 1; and a cleaning component disposed above the through groove 28.

[0020] During anchoring operations, the lifting mechanism of the anchoring assembly first moves the support plate 14 downwards, simultaneously moving the rotating component and anchor rod 2 on the support plate 14 downwards. Once the lower end of the anchor rod 2 contacts the soil surface, the rotating component activates and drives the anchor rod 2 to rotate, gradually screwing it into the soil. The depth of the anchor rod 2's insertion is controlled by adjusting the lifting mechanism, achieving initial anchoring of the horizontal directional drilling rig. When the anchor rod 2 rotates to the preset depth, the ejector of the unfolding assembly is triggered, ejecting the unfolding component from the receiving cavity 37, ensuring full contact between the unfolding component and the soil, further enhancing anchoring stability. When the anchoring operation is complete and the device needs to be retracted, the rotating component reverses its rotation, causing the anchor rod 2 to rotate and exit the soil. Simultaneously, the cleaning component of the auxiliary cleaning assembly activates, cleaning the surface of the anchor rod 2 during the screwing-out process to remove attached soil and debris for future use.

[0021] In the example of this application, the rotating component includes a rotary motor 22 disposed below the support plate 14 on the side away from the anchor rod 2. The drive end of the rotary motor 22 is equipped with a second pulley 23, and the upper end of the anchor rod 2 is fixedly equipped with a first pulley 21. The first pulley 21 and the second pulley 23 are connected by a transmission belt 24.

[0022] As a preferred example of this utility model, when it is necessary to drive the anchor rod 2 into the soil, the rotary motor 22 under the support plate 14 is started. The drive end of the rotary motor 22 drives the second pulley 23 to rotate synchronously. Since the first pulley 21 and the second pulley 23 are connected by a transmission belt 24, and the first pulley 21 is fixedly installed on the upper end of the anchor rod 2, the rotation of the second pulley 23 will drive the first pulley 21 to rotate through the transmission belt 24, thereby driving the anchor rod 2 to rotate synchronously. The operator can adjust the speed of the rotary motor 22 according to the different soil textures, so that the anchor rod 2 is driven into the soil at a suitable speed and at a uniform speed, ensuring a smooth rotation process.

[0023] In the example of this application, the lifting component includes a servo motor 17 fixedly installed on the upper end of the protective frame 11. A lead screw 15 is installed on the drive end of the servo motor 17. A lead screw sleeve 16 is fixedly installed in the middle of the support plate 14. A fixing plate 12 is welded to the inner cavity of the protective frame 11. A slide groove 13 is opened on the side of the fixing plate 12 near the support plate 14. A slider is fixedly installed on the side of the support plate 14 near the slide groove 13. The size of the lead screw 15 is adapted to the size of the lead screw sleeve 16, and the lead screw 15 and the lead screw sleeve 16 are threadedly connected. The size of the slider is adapted to the size of the slide groove 13, and the slider is slidably connected to the slide groove 13.

[0024] As a preferred example of this utility model, during anchoring, the servo motor 17 at the upper end of the protective frame 11 is activated. The drive end of the servo motor 17 drives the lead screw 15 to rotate synchronously. Since the lead screw sleeve 16 in the middle of the support plate 14 is threadedly connected to the lead screw 15, the rotation of the lead screw 15 is converted into the linear motion of the lead screw sleeve 16, which in turn drives the support plate 14 to rise and fall in the vertical direction, realizing the up and down movement of the anchor rod 2. This facilitates the anchor rod 2 to be screwed into the soil to anchor and limit the horizontal directional drilling machine. At the same time, the sliding groove 13 on the inner cavity fixing plate 12 of the protective frame 11 slides and engages with the slider on the support plate 14. During the raising and lowering of the support plate 14, the slider slides along the sliding groove 13, which guides and limits the movement of the support plate 14, preventing the support plate 14 from shifting or shaking, and ensuring that the anchor rod 2 always remains vertical and screws into the soil, thus ensuring anchoring stability.

[0025] In the example of this application, the unfolding component includes a storage groove 31 formed in the inner wall of the receiving cavity 37. A fixing strip 32 is provided in the inner cavity of the storage groove 31. The size of the fixing strip 32 is adapted to the size of the storage groove 31, and the fixing strip 32 is movably connected to the storage groove 31. Arc-shaped plates 33 are provided on both sides of the inner cavity of the receiving cavity 37. The outer side of the arc-shaped plates 33 is fixedly connected to the fixing strip 32.

[0026] As a preferred example of this utility model, when the anchor rod 2 is screwed into the soil, the fixing strip 32 does not protrude from the surface of the anchor rod 2, thus avoiding obstructing the screwing of the anchor rod 2 and ensuring that the anchor rod 2 can smoothly penetrate the soil. When the anchor rod 2 is rotated to the preset depth, the ejector triggers the ejection action, pushing the arc plate 33 to unfold outward. The arc plate 33 drives the fixing strip 32 to move, and the fixing strip 32 slides along the receiving groove 31. The unfolded fixing strip 32 is in full contact with the soil, increasing the contact area between the anchor rod 2 and the soil, dispersing the soil reaction force on the anchor rod 2, thereby improving the stability of the anchor rod 2 in the soil and preventing it from tilting or loosening.

[0027] In the example of this application, a plurality of springs 35 are fixedly installed on the outer side of the arc plate 33, and the other end of the springs 35 is fixedly connected to the inner wall of the receiving cavity 37.

[0028] As a preferred example of this utility model, when the ejector applies an ejecting force to the arc plate 33, the spring 35 is in a compressed state. When the anchor rod 2 is rotated out of the soil, the arc plate 33 loses the force of the ejector, and the spring 35 drives the arc plate 33 to reset, so that the arc plate 33 drives the fixing strip 32 to be put into the receiving groove 31.

[0029] In the example of this application, the ejector includes a fixing rod 3 disposed in the inner cavity of the receiving cavity 37. The upper end of the fixing rod 3 is fixedly connected to the upper end of the inner cavity of the protective frame 11. Wedge blocks 36 are fixedly installed on both sides of the lower end of the fixing rod 3. A strip groove 34 is opened in the middle of the arc plate 33. The size of the strip groove 34 is adapted to the size of the wedge block 36.

[0030] As a preferred example of this utility model, the fixing rod 3 of the ejector is fixedly installed at the upper end of the inner cavity of the protective frame 11, and its position remains fixed. When the lifting component of the anchoring assembly drives the anchor rod 2 downward into the soil, the anchor rod 2 simultaneously drives the receiving cavity 37 and the arc plate 33 to move downward together. When the anchor rod 2 is screwed into the preset depth, the wedge block 36 at the lower end of the fixing rod 3 is exactly aligned with the strip groove 34 in the middle of the arc plate 33. As the anchor rod 2 continues to move slightly downward, the wedge block 36 is embedded in the strip groove 34 and generates an outward ejection force on the arc plate 33, pushing the arc plate 33 to unfold outward. Since the wedge block 36 and the strip groove 34 are matched in size, they fit tightly and are evenly stressed during the ejection process, which can avoid jamming and displacement, ensuring that the arc plates 33 on both sides unfold synchronously and smoothly. The entire ejection process does not require additional power drive, and is triggered by the downward movement of the anchor rod 2 itself, thereby improving the anchoring linkage effect of the horizontal directional drilling rig.

[0031] In the example of this application, the cleaning component includes a gear 25 fixedly installed at the lower end of the lead screw 15, a toothed ring 26 slidably installed at the upper end of the through groove 28, the gear 25 meshing with the toothed ring 26, and a brush ring 27 detachably installed on the inner side of the toothed ring 26, the size of the brush ring 27 being adapted to the outer side of the anchor rod 2.

[0032] As a preferred example of this utility model, when the anchoring operation is completed and the lifting component drives the anchor rod 2 to rotate upward out of the soil, the lead screw 15 rotates synchronously, and the gear 25 at the lower end of the lead screw 15 rotates accordingly. Since the gear 25 meshes with the toothed ring 26 at the upper end of the through groove 28, the rotation of the gear 25 will drive the toothed ring 26 to rotate synchronously. The toothed ring 26 will then drive the inner brush ring 27 to rotate together. At this time, the anchor rod 2 is in an upward moving state, and the brush ring 27 and the anchor rod 2 form a relative rotation. The brush ring 27 is in close contact with the surface of the anchor rod 2, which can clean the soil and debris attached to the surface of the anchor rod 2 in an all-round and thorough manner. The brush ring 27 and the toothed ring 26 are detachably connected. When the brush ring 27 is worn, it can be easily disassembled and replaced to ensure long-term stable cleaning effect. At the same time, it avoids soil residue from affecting the accuracy of the next screwing in of the anchor rod 2, and also prevents soil from corroding the anchor rod 2, thus extending its service life.

[0033] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An anchoring device for a horizontal directional drilling rig, characterized in that, include: Anchor frame (1), with protective frames (11) fixedly installed on both sides of the anchor frame (1). An anchoring assembly includes a support plate (14) slidably disposed in the inner cavity of the protective frame (11). An anchor rod (2) is rotatably mounted on one side of the support plate (14) via a bearing. A rotating component is provided on the other side of the support plate (14). The rotating component is used to drive the anchor rod (2) to rotate and penetrate into the soil. A lifting component is provided in the middle of the support plate (14). The unfolding assembly includes a receiving cavity (37) opened in the middle of the anchor rod (2), the inner cavity of the receiving cavity (37) is provided with an unfolding member, and an ejector member is provided inside the receiving cavity (37). The ejector member is used to eject the unfolding member from the inner cavity of the anchor rod (2) when the anchor rod (2) is rotated into place. The auxiliary cleaning component includes a through groove (28) disposed on the anchor frame (1) and a cleaning element disposed above the through groove (28).

2. The anchoring device for a horizontal directional drilling rig according to claim 1, characterized in that, The rotating component includes a rotary motor (22) located below the support plate (14) on the side away from the anchor rod (2). The drive end of the rotary motor (22) is equipped with a second pulley (23), and the upper end of the anchor rod (2) is fixedly equipped with a first pulley (21). The first pulley (21) and the second pulley (23) are connected by a transmission belt (24).

3. The anchoring device for a horizontal directional drilling rig according to claim 2, characterized in that, The lifting component includes a servo motor (17) fixedly installed on the upper end of the protective frame (11), a lead screw (15) installed on the drive end of the servo motor (17), a lead screw sleeve (16) fixedly installed in the middle of the support plate (14), a fixing plate (12) welded to the inner cavity of the protective frame (11), a sliding groove (13) opened on the side of the fixing plate (12) near the support plate (14), and a slider fixedly installed on the side of the support plate (14) near the sliding groove (13).

4. The anchoring device for a horizontal directional drilling rig according to claim 3, characterized in that, The size of the lead screw (15) is adapted to the size of the lead screw sleeve (16), and the lead screw (15) and the lead screw sleeve (16) are threadedly connected. The size of the slider is adapted to the size of the slide groove (13), and the slider and the slide groove (13) are slidably connected.

5. The anchoring device for a horizontal directional drilling rig according to claim 4, characterized in that, The unfolding component includes a storage groove (31) formed on the inner wall of the receiving cavity (37). The inner cavity of the storage groove (31) is provided with a fixing strip (32). The size of the fixing strip (32) is adapted to the size of the storage groove (31), and the fixing strip (32) is movably connected to the storage groove (31). Arc-shaped plates (33) are provided on both sides of the inner cavity of the receiving cavity (37), and the outer side of the arc-shaped plate (33) is fixedly connected to the fixing strip (32).

6. The anchoring device for a horizontal directional drilling rig according to claim 5, characterized in that, Multiple springs (35) are fixedly installed on the outer side of the arc plate (33), and the other end of the springs (35) is fixedly connected to the inner wall of the receiving cavity (37).

7. The anchoring device for a horizontal directional drilling rig according to claim 6, characterized in that, The ejector includes a fixing rod (3) disposed in the inner cavity of the receiving cavity (37). The upper end of the fixing rod (3) is fixedly connected to the upper end of the inner cavity of the protective frame (11). Wedge blocks (36) are fixedly installed on both sides of the lower end of the fixing rod (3). A strip groove (34) is opened in the middle of the arc plate (33). The size of the strip groove (34) is adapted to the size of the wedge block (36).

8. The anchoring device for a horizontal directional drilling rig according to claim 7, characterized in that, The cleaning component includes a gear (25) fixedly installed at the lower end of the lead screw (15), a toothed ring (26) slidably installed at the upper end of the through groove (28), the gear (25) meshing with the toothed ring (26), and a brush ring (27) detachably installed on the inner side of the toothed ring (26), the size of the brush ring (27) being adapted to the outer side of the anchor rod (2).

Images