Simple fixed type drill rod mud scraper
By designing a simple fixed drill pipe mud scraper, the mud is scraped by the rotation and axial movement of the drill pipe, the problem of low efficiency and unenvironmentality of the surface of the drill pipe is solved, and efficient and environmentally friendly drill pipe cleaning effect is achieved.
Patent Information
- Application Number
- CN202323463289.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-19
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2033-12-19
AI Technical Summary
In the prior art, manual mud removal of drill pipe surface mud is low, unenvironmental, and incomplete removal, which affects the mechanical properties of drill pipes and cleanliness on site.
A simple fixed drill rod mud scraper is designed, including mud scraper and fixed support. The mud scraper is fixedly connected by a fixed support and anchored underground. The mud scraper can be crossed and suspended under the drill rod, and the mud is scraped off by the rotation and axial movement of the drill rod.
The mud scraper can efficiently remove most of the mud on the drill rod during the drill rod extraction process, reduce manual cleaning time, improve work efficiency, and is easy to process and produce, significantly improving the environmental protection and tidy situation on the site.
Smart Images
Figure CN222668119U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of trenchless horizontal directional drilling construction equipment, in particular to a simple fixed drill rod mud scraper. Background Art
[0002] As one of the important drilling tools, the drill pipe is mostly made of alloy steel. During the drilling operation, it will inevitably come into contact with mud. Since the mud is mostly alkaline glue with a pH value of 9 to 12, mixed with various additives, and affected by the invasion of groundwater, the various chemical components in the mud will slowly corrode the surface of the drill tool, and then affect the mechanical properties of the drill pipe over time.
[0003] Due to the limited conditions at the construction site, it is not possible to fully clean the drill pipe in the factory. The site usually uses regular manual cleaning of the outer surface of the drill pipe. The cleaning method is to remove the drill pipe and place it side by side on the drill pipe rack on the site (at this time, the surface mud gradually hardens into blocks due to being in a non-flowing state), and then use a flat shovel, hemp rope, and local watering to gradually remove it, which is quite time-consuming. The fallen mud blocks and mud liquid gather in the site, which is extremely unenvironmentally friendly and affects the cleanliness of the site. In addition, too much mud scale on the surface of the drill pipe will affect its non-destructive testing. Utility Model Content
[0004] The purpose of the utility model is to solve at least one of the above-mentioned deficiencies in the prior art. For example, one of the purposes of the utility model is to provide a simple fixed drill pipe scraper to overcome the technical defects of the prior art in manually removing mud from the drill pipe surface, such as low efficiency, environmental pollution, and incomplete removal.
[0005] In order to achieve the above-mentioned purpose, the utility model provides a simple fixed drill pipe scraper, which may include a scraper piece and a fixed support, wherein one end of the scraper piece is fixedly connected to the upper end of the fixed support, and the lower end of the fixed support is anchored underground. The scraper piece can cross over the horizontally placed drill pipe and fit on the outer wall of the drill pipe, and the other end of the scraper piece can be hung under the drill pipe; the scraper piece can rely on the rotation and axial movement of the drill pipe to scrape off the mud attached to the surface of the drill pipe during the process of pulling out the drill pipe.
[0006] Optionally, a first connecting hole may be opened at the upper end of the fixed support, a second connecting hole may be opened at one end of the scraper, and the scraper may be fixedly connected to the fixed support by bolts passing through the first connecting hole and the second connecting hole.
[0007] Optionally, the scraper may be made of a nylon belt, the width of the nylon belt may be 4 to 6 cm, and the thickness may be 4 to 8 mm.
[0008] Optionally, the scraper may further include a counterweight block, which may be fixedly connected to the other end of the scraper member. The counterweight block may be suspended below the drill rod through the scraper member and may hold the scraper member tightly against the outer wall of the drill rod.
[0009] Optionally, the counterweight block may be a metal block, and the mass of the metal block may range from 5 to 10 kg.
[0010] Optionally, the scraper may further include a lifting ring, which may be connected between the scraper element and the counterweight block and may be used to fix the scraper element and the counterweight block in connection.
[0011] Optionally, the lifting ring may be a circular closed lifting ring, which may be made by bending a steel wire rope.
[0012] Optionally, the fixing support may be made of angle steel, and the size of the angle steel may be 80 mm×80 mm×5 mm.
[0013] Optionally, the anchoring depth of the fixing support in the ground may be at least half of the length of the fixing support.
[0014] Optionally, the scraper may further include an extension cord, which may be connected between the scraper member and the fixed support and may be used to extend the use distance of the scraper member.
[0015] Compared with the prior art, the beneficial effects of the utility model include the following:
[0016] The simple fixed drill rod scraper of the utility model can be used in pipeline drilling construction sites, is simple to make and easy to install, and can be used to remove most of the mud on the drill rod during the process of pulling out the drill rod from the hole. After cleaning, the drill rod is placed on a drill rod rack and only needs to be cleaned slightly manually, which saves time and effort and greatly improves work efficiency. In addition, the mud scraper of the utility model is extremely easy to process and manufacture on the construction site, and has obvious mud scraping effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The above and other objects and / or features of the present invention will become more apparent through the following description in conjunction with the accompanying drawings, in which:
[0018] Figure 1 A schematic diagram of a simple fixed drill pipe scraper according to an exemplary embodiment of the utility model is shown.
[0019] Description of reference numerals:
[0020] 1. Mud scraper, 11. Second connecting hole, 2. Fixed support, 21. First connecting hole, 3. Counterweight, 4. Lifting ring. DETAILED DESCRIPTION
[0021] Hereinafter, the simple fixed drill pipe scraper of the present invention will be described in detail in conjunction with exemplary embodiments.
[0022] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying 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.
[0023] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.
[0024] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0025] In the pipeline drilling construction, the surface of the drill rod pulled out from the borehole is usually covered with mud. Because the mud is mostly alkaline glue with a pH value of 9 to 12, mixed with various additives, and affected by groundwater intrusion, the various chemical components in the mud will slowly corrode the surface of the drill tool, and then affect the mechanical properties of the drill rod over time. Therefore, it is necessary to remove the mud on the surface of the drill rod in time. Due to the limited conditions at the construction site, it is not possible to have the conditions for comprehensive cleaning of the drill rod in the factory. The site usually adopts regular manual cleaning of the outer surface of the drill rod. The cleaning method is to pull the drill rod out and place it side by side on the drill rod rack on the site (at this time, the surface mud gradually hardens into blocks due to being in a non-flowing state), and manually use a flat shovel, hemp rope, and local watering to gradually remove it, which is more time-consuming. And the fallen mud blocks, mud liquid, etc. gather in the site, which is extremely unenvironmentally friendly and affects the cleanliness of the site. In addition, too much mud scale on the surface of the drill rod will affect its non-destructive testing.
[0026] Based on this, the utility model provides a simple fixed drill rod scraper, which includes a scraper piece and a fixed support, wherein one end of the scraper piece is fixedly connected to the upper end of the fixed support, and the lower end of the fixed support is anchored underground. The scraper piece can cross over the horizontally placed drill rod and fit on the outer wall of the drill rod, and the other end of the scraper piece can be hung under the drill rod; the scraper piece can rely on the rotation and axial movement of the drill rod to scrape off the mud attached to the surface of the drill rod during the process of pulling out the drill rod.
[0027] The simple fixed drill rod scraper of the utility model can be used in pipeline drilling construction sites, is simple to make and easy to install, and can be used to remove most of the mud on the drill rod during the process of pulling out the drill rod from the hole. After cleaning, the drill rod is placed on a drill rod rack and only needs to be cleaned slightly manually, which saves time and effort and greatly improves work efficiency. In addition, the mud scraper of the utility model is extremely easy to process and manufacture on the construction site, and has obvious mud scraping effect.
[0028] Exemplary Embodiment 1
[0029] The present exemplary embodiment provides a simple fixed drill pipe scraper.
[0030] Figure 1 A schematic diagram of a simple fixed drill pipe scraper according to an exemplary embodiment of the utility model is shown.
[0031] like Figure 1 As shown, the simple fixed drill pipe scraper described in this exemplary embodiment may include a scraper 1 and a fixed support 2, wherein one end of the scraper 1 may be fixedly connected to the upper end of the fixed support 2, and the lower end of the fixed support 2 may be anchored underground, and the scraper 1 may cross over the top of the transversely placed drill pipe and fit on the outer wall of the drill pipe. Here, the transversely placed drill pipe may be a drill pipe just pulled out of the drill hole, and the drill pipe may form an angle of about 6 to 8 degrees with the horizontal direction, and the scraper 1 may cross over the top of the drill pipe and suspend the other end of the scraper 1 below the drill pipe.
[0032] The scraper 1 can utilize the rotation and axial movement of the drill rod itself during the process of the drill rod being pulled out of the hole to generate relative friction between the scraper 1 and the drill rod, thereby scraping off the mud attached to the surface of the drill rod.
[0033] In this embodiment, a first connecting hole 21 may be opened at the upper end of the fixed support 2, and a second connecting hole 11 may be opened at one end of the scraper 1. The first connecting hole 21 and the second connecting hole 11 may both pass through the fixed support 2 and the scraper 1, and bolts may be passed through the first connecting hole 21 and the second connecting hole 11 at the same time, so that the scraper 1 and the fixed support 2 can be fixedly connected by bolts; here, the aperture of the first connecting hole 21 and the second connecting hole 11 may be about 2 cm, and the type of the bolt may be M20 reamed bolt; but the utility model is not limited to this, the aperture of the connecting hole and the type of the bolt may be arbitrarily selected according to actual operation requirements, and the utility model does not make specific limitations on this.
[0034] In this embodiment, the scraper 1 can be made of thickened nylon belt (or ordinary nylon belt double-layer overlapped and sewn for use), the width of the nylon belt can be 4 to 6 cm, and the thickness can be 4 to 8 mm. However, the utility model is not limited to this, the scraper 1 can also be made of other materials, and the size of the scraper 1 can also be arbitrarily selected according to needs, and the utility model does not make specific limitations on this.
[0035] In this embodiment, the simple fixed drill pipe scraper described in this exemplary embodiment may also include a counterweight block 3, which can be fixedly connected to the other end of the scraper member 1 (i.e., the end suspended below the drill pipe). The counterweight block 3 can be suspended below the drill pipe through the scraper member 1 to increase the hanging counterweight of the scraper member 1, so that the scraper member 1 can be tightly attached to the outer wall of the drill pipe, thereby further improving the scraping effect of the scraper member 1 on the drill pipe.
[0036] Optionally, the counterweight block 3 can be specifically selected as a metal block, and the mass range of the metal block can be 5 to 10 kg; but the utility model is not limited to this, the counterweight block 3 can also be made of other materials, and the mass of the counterweight block 3 can also be arbitrarily selected according to needs, not limited to the above-mentioned mass range, and the utility model does not make specific limitations on this.
[0037] In this embodiment, the simple fixed drill pipe scraper described in this exemplary embodiment may also include a lifting ring 4, which can be connected between the scraper 1 and the counterweight 3, and can be used to fix the scraper 1 and the counterweight 3. The lifting ring 4 can enhance the connection stability between the scraper 1 and the counterweight 3 to prevent the counterweight 3 from falling off the scraper 1 due to its excessive mass.
[0038] Optionally, the lifting ring 4 may be a circular closed lifting ring, which may be made by bending a steel wire rope; however, the present invention is not limited thereto, and the material of the lifting ring 4 may be selected as required, as long as it can bear the suspended weight of the counterweight block 3, and the present invention does not make any specific limitation on this.
[0039] In this embodiment, the fixed support 2 can be made of angle steel material, the size of the selected angle steel can be 80mm×80mm×5mm, and the length range of the fixed support 2 can be 0.8m~1.2m; but the utility model is not limited to this, the material and size range selected for the fixed support 2 can be arbitrarily selected according to needs, and the utility model does not make specific limitations on this.
[0040] In this embodiment, the lower end of the fixed support 2 can be anchored underground, and the anchoring depth in the underground can be at least half of the total length of the fixed support 2; for example, the length of the fixed support 2 is 1.2m, and the anchoring depth of the fixed support 2 in the underground is not less than 0.6m; but the utility model is not limited to this, and the anchoring depth of the fixed support 2 in the underground can also be arbitrarily selected according to needs, and the utility model does not make specific limitations on this.
[0041] In this embodiment, the simple fixed drill pipe scraper described in this exemplary embodiment may further include an extension rope (not shown in the figure), which may be connected between the scraper 1 and the fixed support 2 and may be used to extend the use distance of the scraper 1. For example, if the anchoring position of the fixed support 2 is far away from the drill pipe, the scraper 1 may be connected to the fixed support 2 by connecting an extension rope of a suitable length between the scraper 1 and the fixed support 2, so that the scraper 1 may reach the position of the drill pipe and may be hung on the drill pipe to perform the scraping operation.
[0042] The working process of the simple fixed drill pipe scraper described in this exemplary embodiment is described in detail as follows:
[0043] Anchor the fixed support 2 at a suitable distance next to the drill rod to be pulled out, fix one end of the scraper 1 to the upper end of the fixed support 2 by bolts, and connect an extension rope between the scraper 1 and the fixed support 2 if necessary, install a lifting ring 4 at the other end of the scraper 1, and connect the counterweight 3 to the lifting ring 4. When the drill rod is pulled out from the hole, cross the counterweight 3 together with the scraper 1 from above the drill rod and hang the counterweight 3 under the drill rod, so that the scraper 1 is tightly attached to the outer wall of the drill rod. As the drill rig drives the drill rod to rotate at a low and uniform speed and causes the drill rod to move axially during the process of pulling out the drill rod, relative friction can be generated between the scraper 1 and the drill rod, so that the mud attached to the surface of the drill rod can be scraped off.
[0044] To sum up, the simple fixed drill rod scraper of the utility model can be used in pipeline drilling construction sites, is simple to make and easy to install, and can be used to remove most of the mud on the drill rod during the process of pulling the drill rod out of the hole. After cleaning, the drill rod is placed on the drill rod rack and only needs to be manually cleaned, which saves time and effort and greatly improves work efficiency. In addition, the scraper of the utility model is extremely easy to process and manufacture at the construction site, and has obvious mud scraping effect.
[0045] Although the present invention has been described above in conjunction with the exemplary embodiments and the accompanying drawings, it should be apparent to those skilled in the art that various modifications may be made to the above embodiments without departing from the spirit and scope of the claims.
Claims
1. A simple fixed drill pipe scraper, characterized in that: The mud scraper comprises a mud scraper and a fixed support, wherein: One end of the scraper is fixedly connected to the upper end of the fixed support, the lower end of the fixed support is anchored underground, the scraper can cross over the horizontally placed drill rod and fit on the outer wall of the drill rod, and the other end of the scraper can be suspended below the drill rod; The scraper is made of a nylon belt, and can scrape away the mud attached to the surface of the drill rod by rotating and moving the drill rod in the axial direction during the process of pulling out the drill rod; The scraper also includes a counterweight block, which is fixedly connected to the other end of the scraper member. The counterweight block can be suspended below the drill rod through the scraper member and the scraper member is tightly attached to the outer wall of the drill rod.
2. The simple fixed drill pipe scraper according to claim 1, characterized in that: A first connecting hole is formed at the upper end of the fixed support, a second connecting hole is formed at one end of the scraper, and the scraper is fixedly connected to the fixed support via bolts passing through the first connecting hole and the second connecting hole.
3. The simple fixed drill pipe scraper according to claim 1, characterized in that: The width of the nylon belt is 4~6cm and the thickness is 4~8mm.
4. The simple fixed drill pipe scraper according to claim 1, characterized in that: The counterweight block is a metal block, and the mass range of the metal block is 5-10kg.
5. The simple fixed drill pipe scraper according to claim 1, characterized in that: The scraper also includes a lifting ring, which is connected between the scraper and the counterweight and is used to fix the scraper and the counterweight.
6. The simple fixed drill pipe scraper according to claim 5, characterized in that: The lifting ring is a circular closed lifting ring, which is made by bending a steel wire rope.
7. The simple fixed drill pipe scraper according to claim 1, characterized in that: The fixed support is made of angle steel, and the size of the angle steel is 80mm×80mm×5mm.
8. The simple fixed drill pipe scraper according to claim 1, characterized in that: The anchoring depth of the fixing support in the ground is at least half of the length of the fixing support.
9. The simple fixed drill pipe scraper according to claim 1, characterized in that: The scraper also includes an extension rope, which is connected between the scraper and the fixed support and is used to extend the use distance of the scraper.