Drill rod mud clamping and suspending gear mud scraping safety device

Abstract

The utility model discloses a gear mud scraping safety device with a suspended drill rod clamping mud, which relates to the technical field of drill rod cleaning and comprises a drill rod, a drill rod mounted in the drill rod and a mud scraping mechanism mounted at the bottom end of the drill rod and used for scraping mud and stones carried on the drill rod. The mud scraping mechanism comprises a wheel body rotationally arranged at the bottom end of the drilling machine, a plurality of tooth-shaped mud scraping plates fixedly arranged on the peripheral face of the wheel body and elastic scraping teeth fixedly arranged on the outer sides of the tooth-shaped mud scraping plates and tightly attached to the outer wall of the drilling rod, and a fixing mechanism used for fixing the wheel body after rotation is arranged at the bottom end of the drilling machine. Through the arrangement of the mud scraping mechanism, when the drill rod is lifted while rotating, mudstone carried on the drill rod can be effectively scraped by utilizing the fixed tooth-shaped mud scraping plate and the elastic scraping teeth, so that the mudstone carried by the drill rod is prevented from falling off in the air, the safety of a construction site is remarkably improved, meanwhile, the cost and time of manual cleaning are reduced, and the construction efficiency is improved. And the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling rod cleaning, in particular to a gear mud scraping safety device for drilling rods with mud clamped and suspended in the air. Background Art

[0002] With the increasing development of my country's economy, the scale and number of engineering projects are increasing, the technical means are diversified and continuously optimized, and CFG pile composite foundation is widely used for its advantages of economy, convenient construction, high foundation bearing capacity, etc. The drilling rig is the driving structure in the ground drilling equipment. It drives the drilling and grinding equipment or bottom hole device at the bottom of the borehole to rotate by driving the drill rod to rotate. The drill rod can also transport drilling mud to the ground and drive the drill bit to rise or fall synchronously.

[0003] The drilling site may be a suburban site or near a river, and there will be certain differences in the geology. When encountering more complex geology, it is mixed with loess layers, sand layers, silt layers, mud and gravel layers, and bed stones.

[0004] When constructing CFG piles under complex geological conditions, the drill rod is prone to carry a large amount of mud and rocks when passing through silt and mud-pebble layers. Conventional drilling rigs usually do not have effective mud and rock cleaning devices, which may cause mud and rocks to fall from the air during the lifting process of the drill rod, which not only affects the construction progress, but also poses serious safety hazards. Utility Model Content

[0005] The utility model aims at the disadvantage that the mud and rocks carried by the drill rod may fall in the air during the lifting process, which not only affects the construction progress but also poses a serious safety hazard. The utility model provides a gear mud scraping safety device for the drill rod with mud in the air. The specific technical scheme is as follows:

[0006] A gear-type mud scraping safety device for a drill rod suspended in the air with mud in it comprises a drilling rig, a drill rod installed in the drilling rig, and a mud scraping mechanism installed at the bottom end of the drilling rig and used for scraping mud and rocks on the drill rod. The mud scraping mechanism comprises a wheel body rotatably arranged at the bottom end of the drilling rig, a plurality of toothed mud scraping plates fixedly arranged on the outer peripheral surface of the wheel body, and elastic scraping teeth fixedly arranged on the outside of the toothed mud scraping plates and tightly fitted to the outer wall of the drill rod. The bottom end of the drilling rig is provided with a fixing mechanism for fixing the rotating rear wheel body.

[0007] By adopting the above technical solution and setting up the scraper mechanism, the fixed toothed scraper plate and elastic scraper teeth can be used to effectively scrape off the mud and rocks on the drill rod while the drill rod is rotating and lifting, thereby preventing the mud and rocks carried by the drill rod from falling into the air.

[0008] Optionally, a positioning casing for positioning the drill rod is fixedly provided at the bottom end of the drilling rig, and a supporting mechanism for supporting the mud scraping mechanism is provided on one side of the positioning casing, and the supporting mechanism includes a supporting sleeve rod fixedly provided on one side of the positioning casing, and a connecting frame slidably provided in one end of the supporting sleeve rod, the wheel body is rotatably provided at the bottom end of the connecting frame, a rotating rod is rotatably connected to the bottom end of the connecting frame, and the wheel body is fixedly provided on the outer wall of one end of the rotating rod.

[0009] By adopting the above technical solution, the supporting mechanism can connect the scraping mechanism with the positioning casing and support the scraping mechanism to ensure the stability and scraping effect of the scraping mechanism.

[0010] Optionally, a fixing bolt is threadedly provided on the top of the support sleeve rod, a fixing hole is opened in the connecting frame, and the bottom end of the fixing bolt is inserted into the fixing hole.

[0011] By adopting the above technical solution, people can fix the support sleeve rod and the connecting frame after connecting the support sleeve rod and the fixing hole with the fixing bolt.

[0012] Optionally, the fixing mechanism includes a plurality of positioning holes formed in the wheel body and corresponding one-to-one to the plurality of toothed scraper blades, and positioning bolts inserted into the positioning holes, one end of the positioning bolts being threadedly connected to a threaded hole formed at the bottom end of the connecting frame.

[0013] By adopting the above technical solution, people use positioning bolts to connect the corresponding positioning holes and the connecting frame to fix the rotating wheel body, the plurality of toothed scraper plates and the plurality of elastic scraper teeth.

[0014] In summary, the present invention has at least one of the following beneficial effects:

[0015] 1. Through the setting of the scraper mechanism, the fixed toothed scraper plate and elastic scraper teeth can be used to effectively scrape off the mud and rocks on the drill rod while the drill rod is rotating and lifting, thus avoiding the mud and rocks carried by the drill rod from falling in mid-air, significantly improving the safety of the construction site, and at the same time reducing the cost and time of manual cleaning, and improving construction efficiency.

[0016] 2. A cleaning gear for the drill rod can be formed by arranging the wheel body and a plurality of toothed scraper blades and other components. When the toothed scraper blade or elastic scraper teeth for cleaning the drill rod are damaged, people can rotate the wheel body to move another toothed scraper blade and elastic scraper teeth to the cleaning position to continue scraping mud, so that people do not need to remove and replace the damaged toothed scraper blade and elastic scraper teeth on site, thereby shortening downtime and improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 The utility model Figure 1 A magnified view of the structure in the middle;

[0019] Figure 3 It is the internal connection diagram of the support sleeve rod and the connecting frame of the utility model;

[0020] Figure 4 It is a top view cross-sectional view of the connecting frame and the wheel body of the utility model.

[0021] Explanation of the accompanying reference numerals: 1. drilling rig; 11. positioning casing; 2. drill rod; 3. wheel body; 31. toothed scraper; 32. elastic scraper teeth; 33. positioning hole; 34. positioning bolt; 4. supporting sleeve rod; 41. connecting frame; 42. rotating rod; 43. fixing hole; 44. fixing bolt. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-4 The utility model is described in further detail.

[0023] The utility model embodiment discloses a gear mud scraping safety device for drilling rods with mud clamped and suspended in the air, referring to Figure 1 , including a drilling rig 1, a drill rod 2 installed in the drilling rig 1, and a scraper mechanism installed at the bottom of the drilling rig 1 and used to scrape mud and rocks on the drill rod 2. After the drilling rig 1 is running, it will drive the drill rod 2 to rise and fall while rotating to perform the drilling process of pile holes such as CFG piles. This is a public technology and will not be described in detail here.

[0024] Reference Figure 1-3 A positioning casing 11 for positioning the drill rod 2 is fixedly disposed at the bottom end of the drilling rig 1. The positioning casing 11 can position the drill rod 2 and is a common component in existing drilling rigs, so no further description is given here.

[0025] A supporting mechanism for supporting the scraping mechanism is provided on one side of the positioning casing 11 . The supporting mechanism can connect the scraping mechanism with the positioning casing 11 and support the scraping mechanism.

[0026] Reference Figure 1-2 The scraping mechanism includes a wheel body 3 rotatably arranged at the bottom end of the drilling rig 1, a plurality of toothed scraping plates 31 fixedly arranged on the outer peripheral surface of the wheel body 3, and elastic scraping teeth 32 fixedly arranged on the outer side of the toothed scraping plates 31 and tightly fitted on the outer wall of the drill rod 2. A fixing mechanism for fixing the rotating wheel body 3 is provided at the bottom end of the drilling rig 1. The toothed scraping plates 31 can support the elastic scraping teeth 32. The elastic scraping teeth 32 can be made of a material with a certain elasticity such as rubber, which can effectively scrape off the mud and stones entrained on the drill rod 2 and is not easy to scratch the outer surface of the drill rod 2.

[0027] The wheel body 3, the plurality of toothed scraper plates 31 and the plurality of elastic scraper teeth 32 form a cleaning gear for cleaning the scraper rod 2. People can change the positions of the plurality of toothed scraper plates 31 and the plurality of elastic scraper teeth 32 by rotating the gear, so that people can rotate the damaged toothed scraper plates 31 and the elastic scraper teeth 32 out of the scraping position of the drill rod 2, and rotate the other intact toothed scraper plates 31 and the elastic scraper teeth 32 to the scraping position to continue scraping, thereby shortening the downtime.

[0028] Reference Figure 1-3 The supporting mechanism includes a supporting sleeve rod 4 fixedly arranged on one side of the positioning casing 11, and a connecting frame 41 slidably arranged in one end of the supporting sleeve rod 4, and the wheel body 3 is rotatably arranged at the bottom end of the connecting frame 41. The supporting sleeve rod 4 and the connecting frame 41 can connect the positioning casing 11 and the wheel body 3. People can remove the scraper mechanism and other components as a whole for inspection or replacement by pulling out the connecting frame 41 from the supporting sleeve rod 4.

[0029] Reference Figure 2-4 A rotating rod 42 is rotatably connected to the bottom end of the connecting frame 41, and the wheel body 3 is fixedly arranged on the outer wall of one end of the rotating rod 42. The rotating rod 42 can connect the connecting frame 41 and the wheel body 3, so as to facilitate the rotation of the wheel body 3 on one side of the connecting frame 41.

[0030] Reference Figure 1-3 A fixing bolt 44 is threaded on the top of the support sleeve rod 4, and a fixing hole 43 is opened in the connecting frame 41. The bottom end of the fixing bolt 44 is inserted into the fixing hole 43. After people use the fixing bolt 44 to connect the support sleeve rod 4 and the fixing hole 43, the support sleeve rod 4 and the connecting frame 41 can be fixed.

[0031] Reference Figure 2 and Figure 4 The fixing mechanism includes a plurality of positioning holes 33 which are provided in the wheel body 3 and correspond one to one with the plurality of toothed scraper blades 31, and a positioning bolt 34 which is inserted into the positioning holes 33. One end of the positioning bolt 34 is threadedly connected to a threaded hole provided at the bottom end of the connecting frame 41. The rotating wheel body 3, the plurality of toothed scraper blades 31 and the plurality of elastic scraper teeth 32 are fixed by connecting the corresponding positioning holes 33 and the connecting frame 41 with the positioning bolt 34.

[0032] When the wheel body 3, the toothed scraper plate 31 and the elastic scraper teeth 32 are fixed, the drill rod 2 rotates and rises while the drilling rig 1 is running. At this time, the fixed toothed scraper plate 31 and the elastic scraper teeth 32 can effectively scrape away the mud and rocks carried by the abutting drill rod 2, thereby preventing the mud and rocks carried by the drill rod 2 from falling into the air.

[0033] The implementation principle of the gear mud scraping safety device for the drill rod mud suspension in the embodiment of the utility model is:

[0034] When in use, when the drilling rig 1 rotates and lifts the drill rod 2, the elastic scraper teeth 32 and the toothed scraper plate 31 abutting against the outer wall of the drill rod 2 will automatically scrape off the mud and rocks carried on the drill rod 2 to clean the drill rod 2, thereby preventing the mud and rocks carried by the drill rod 2 from falling in mid-air and improving the safety of the construction site;

[0035] When the toothed scraper blade 31 and the elastic scraper teeth 32 for cleaning the drill rod 2 are damaged, people can use the drilling rig 1 to lift the drill rod 2 so that the scraper mechanism is temporarily separated from the drill rod 2;

[0036] Then, the positioning bolt 34 can be removed to disengage the cleaning gear composed of the wheel body 3, the plurality of toothed scraper blades 31 and the plurality of elastic scraper teeth 32, and then the wheel body 3 can be rotated to rotate the damaged toothed scraper blade 31 or the elastic scraper teeth 32 away from the scraping position, and at the same time, the other intact toothed scraper blade 31 and the elastic scraper teeth 32 will enter the cleaning position with the rotation;

[0037] Then people control the drill rod 2 to first descend and then lift it, so that the scraper mechanism can contact the drill rod 2 again. At this time, another intact toothed scraper plate 31 and elastic scraper teeth 32 can continue to scrape the mud at the cleaning position, so that people do not need to remove and replace the damaged toothed scraper plate 31 and elastic scraper teeth 32 on site, thereby shortening the downtime.

[0038] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A gear-type mud scraping safety device for a drill rod suspended in the air with mud in it, comprising a drilling rig (1), a drill rod (2) installed in the drilling rig (1), and a mud scraping mechanism installed at the bottom end of the drilling rig (1) and used to scrape away mud and rocks entrained on the drill rod (2), characterized in that: The scraper mechanism comprises a wheel body (3) rotatably arranged at the bottom end of the drilling rig (1), a plurality of toothed scraper plates (31) fixedly arranged on the outer peripheral surface of the wheel body (3), and elastic scraper teeth (32) fixedly arranged on the outside of the toothed scraper plates (31) and tightly fitted on the outer wall of the drill rod (2); the bottom end of the drilling rig (1) is provided with a fixing mechanism for fixing the wheel body (3) after rotation; A positioning casing (11) for positioning the drill rod (2) is fixedly provided at the bottom end of the drilling rig (1); A support mechanism for supporting the scraping mechanism is provided on one side of the positioning casing (11), the support mechanism comprising a support sleeve (4) fixedly arranged on one side of the positioning casing (11), and a connecting frame (41) slidably arranged in one end of the support sleeve (4), and the wheel body (3) is rotatably arranged at the bottom end of the connecting frame (41); The fixing mechanism comprises a plurality of positioning holes (33) formed in the wheel body (3) and corresponding one-to-one with the plurality of toothed scraper blades (31), and positioning bolts (34) inserted in the positioning holes (33); One end of the positioning bolt (34) is threadedly connected to a threaded hole opened at the bottom end of the connecting frame (41).

2. The gear mud scraping safety device for drilling rod mud suspension according to claim 1 is characterized by: A rotating rod (42) is rotatably connected to the bottom end of the connecting frame (41), and the wheel body (3) is fixedly arranged on an outer wall of one end of the rotating rod (42).

3. The gear-scraping mud safety device for drilling rods suspended in mud according to claim 2 is characterized in that: A fixing bolt (44) is threadedly disposed on the top of the supporting sleeve rod (4).

4. The gear-scraping mud safety device for drilling rods suspended in mud according to claim 3 is characterized by: A fixing hole (43) is provided in the connecting frame (41), and the bottom end of the fixing bolt (44) is inserted into the fixing hole (43).

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