Drill rod guiding device of rotary drilling rig

Abstract

The utility model discloses a drill rod guide device of a rotary drilling rig, which belongs to the technical field of rotary drilling rigs and comprises a rear connecting frame, three rear frame reserved holes are arranged in the rear connecting frame, a first guide frame is arranged on one side of the rear connecting frame, a first guide cylinder wall is arranged on the surface of the first guide frame, and a second guide frame is arranged on one side of the first guide frame. The wear-resistant assembly is arranged, the mounting plates are mounted on the surfaces of the walls of the two guide cylinders, wear-resistant layers on the surfaces of the mounting plates can achieve a wear-resistant effect, so that the wear resistance of the guide frame is improved, the service life of the guide frame is prolonged, and friction generated when a drill rod moves and rotates can be further reduced due to rolling of balls in the mounting plates; the cleaning assembly is arranged, the lower end of the mounting plate is in threaded connection with the cleaning plate through the fixing rod, a scraper and a cleaning brush on the surface of the cleaning plate scrape and clean soil and dust attached to the surface of the drill rod, and therefore the situation that the guide frame is polluted by the soil and the dust is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary drilling rigs, and in particular relates to a drill rod guide device for a rotary drilling rig. Background Art

[0002] The rotary drilling rig is a construction machine suitable for drilling holes in building foundation projects. It is mainly suitable for construction in sandy soil, clay soil, silty soil and other soil layers, and is widely used in various foundation constructions such as cast-in-place piles, continuous walls, and foundation reinforcement.

[0003] Chinese patent application No. 202020122482.9 discloses a drill rod guide device for a rotary drilling rig, which has a first guide frame and a second guide frame. The first guide frame is fixed with a first guide cylinder wall, and the second guide frame is fixed with a second guide cylinder wall. The first guide cylinder wall and the second guide cylinder wall surround each other to form a guide cylinder, and the guide cylinder is formed with a drill rod through hole through which the drill rod of the rotary drilling rig can pass. The upper edges of the first guide cylinder wall and the second guide cylinder wall have guide upper blades folded outward, and the lower edges of the first guide cylinder wall and the second guide cylinder wall have guide lower blades folded outward; the second guide frame is detachably connected to the first guide frame; the first guide frame is also fixed with a rear connecting frame that can be connected to the pile frame of the rotary drilling rig. The utility model can prevent the drill rod of the rotary drilling rig from swinging too much during the drilling construction process. The utility model greatly improves the verticality of the drill rod and the drill bit and the accuracy of the hole position, and is particularly suitable for the construction of drill barrel drill rods with larger diameters.

[0004] In the above-mentioned patent disclosure, 1. The surfaces of the two guide cylinder walls rub against the drill rod, which is easy to cause wear; 2. After the drill rod completes drilling, the surface will be contaminated with mud, which is easy to cause contamination to the guide cylinder wall when moving, requiring simple cleaning. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a drill rod guide device for a rotary drilling rig, which has the characteristics of wear resistance and convenient cleaning.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drill rod guide device for a rotary drilling rig, comprising a rear connecting frame, three rear frame reserved holes are arranged inside the rear connecting frame, a first guide frame is arranged on one side of the rear connecting frame, a first guide cylinder wall is arranged on the surface of the first guide frame, a second guide frame is arranged on one side of the first guide frame, a second guide cylinder wall is arranged on the surface of the second guide frame, wear-resistant components are arranged on the surfaces of the first guide cylinder wall and the second guide cylinder wall, a cleaning component is arranged at the lower end of the wear-resistant component, upper guide blades are arranged on the upper ends of the first guide cylinder wall and the second guide cylinder wall, and lower guide blades are arranged on the lower ends of the first guide cylinder wall and the second guide cylinder wall.

[0007] Preferably, the wear-resistant component includes a mounting plate, a positioning rod, a positioning ring and a wear-resistant layer, wherein the surfaces of the first guide cylinder wall and the second guide cylinder wall are provided with mounting plates, the surfaces of one side of the two mounting plates close to each other are provided with a wear-resistant layer, the surfaces of the other side of the mounting plates are provided with positioning rods, and the surface of the positioning rods is provided with a positioning ring.

[0008] Preferably, the wear-resistant component further comprises balls and empty grooves, wherein the mounting plate and the wear-resistant layer are both provided with empty grooves, and the balls are provided inside the empty grooves.

[0009] Preferably, an elastic sponge cushion is provided on the inner surface of one group of the two groups of empty slots located inside the mounting plate.

[0010] Preferably, the cleaning assembly comprises a cleaning plate, a fixing rod and a fixing groove, wherein a cleaning plate is arranged at the lower end of the mounting plate, a fixing rod is arranged at the upper end of the cleaning plate, and a fixing groove is arranged at a position corresponding to the fixing rod inside the mounting plate.

[0011] Preferably, the cleaning assembly further comprises a scraper and a cleaning brush, wherein a cleaning brush is disposed at the upper end of the cleaning plate surface, and a scraper is disposed at the lower end of the cleaning plate surface.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a wear-resistant component, so that the mounting plates are installed on the surfaces of the two guide cylinder walls. The wear-resistant layer on the surface can play a wear-resistant effect, thereby improving the wear resistance of the guide frame and extending its service life. The rolling of the balls in the mounting plate can further reduce the friction generated when the drill rod moves and rotates.

[0014] 2. The utility model is provided with a cleaning assembly, so that the lower end of the mounting plate is threadedly connected to the cleaning plate through the fixing rod, so that the scraper and the cleaning brush on the surface of the drill rod can scrape and clean the dirt and dust on the surface of the drill rod, thereby preventing the dirt and dust from polluting the guide frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is the front view of the utility model;

[0017] Figure 3 For this utility model Figure 2 A magnified image of point A;

[0018] In the figure: 1. rear connecting frame; 2. reserved hole of rear frame; 3. first guide frame; 4. first guide cylinder wall; 5. guide lower blade; 6. second guide cylinder wall; 7. second guide frame; 8. wear-resistant component; 81. mounting plate; 82. positioning rod; 83. positioning ring; 84. wear-resistant layer; 85. ball bearing; 86. empty groove; 87. elastic sponge cushion; 9. cleaning component; 91. cleaning plate; 92. scraper; 93. cleaning brush; 94. fixing rod; 95. fixing groove; 10. guide upper blade. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example 1

[0021] See also Figure 1-3 The utility model provides the following technical solutions: a drill rod guide device for a rotary drilling rig, comprising a rear connecting frame 1, three rear frame reserved holes 2 are arranged inside the rear connecting frame 1, a first guide frame 3 is arranged on one side of the rear connecting frame 1, a first guide cylinder wall 4 is arranged on the surface of the first guide frame 3, a second guide frame 7 is arranged on one side of the first guide frame 3, a second guide cylinder wall 6 is arranged on the surface of the second guide frame 7, wear-resistant components 8 are arranged on the surfaces of the first guide cylinder wall 4 and the second guide cylinder wall 6, a cleaning component 9 is arranged at the lower end of the wear-resistant component 8, upper guide blades 10 are arranged on the upper ends of the first guide cylinder wall 4 and the second guide cylinder wall 6, and lower guide blades 5 are arranged on the lower ends of the first guide cylinder wall 4 and the second guide cylinder wall 6.

[0022] Specifically, the wear-resistant assembly 8 includes a mounting plate 81, a positioning rod 82, a positioning ring 83 and a wear-resistant layer 84, wherein the mounting plate 81 is disposed on the surface of the first guide cylinder wall 4 and the second guide cylinder wall 6, and the wear-resistant layer 84 is disposed on the surface of one side of the two mounting plates 81 close to each other, and the positioning rod 82 is disposed on the surface of the other side of the mounting plate 81, and the positioning ring 83 is disposed on the surface of the positioning rod 82.

[0023] By adopting the above technical solution, the positioning rod 82 is respectively inserted into the first guide cylinder wall 4 and the second guide cylinder wall 6 and fixed by the positioning ring 83, so that the mounting plate 81 is fixed on the inner surface of the first guide cylinder wall 4 and the second guide cylinder wall 6, and the wear-resistant layer 84 on its surface can prevent the mounting plate 81 and the guide cylinder wall from being worn, thereby effectively extending the service life of the guide frame.

[0024] Specifically, the wear-resistant assembly 8 further includes a ball 85 and an empty groove 86, wherein the mounting plate 81 and the wear-resistant layer 84 are both provided with an empty groove 86, and the empty groove 86 is provided with a ball 85.

[0025] By adopting the above technical solution, the ball 85 rotates in the empty groove 86, which can further reduce friction.

[0026] Specifically, an elastic sponge cushion 87 is provided on the inner surface of one of the two groups of slots 86 located inside the mounting plate 81.

[0027] By adopting the above technical solution, the elastic sponge cushion 87 can provide a protective and buffering effect on the ball 85 .

[0028] When this embodiment is used, the positioning rod 82 is respectively inserted into the first guide cylinder wall 4 and the second guide cylinder wall 6 and fixed by the positioning ring 83, so that the mounting plate 81 is fixed on the inner surface of the first guide cylinder wall 4 and the second guide cylinder wall 6, and the rear connecting frame 1 is connected to the rotary drilling rig through the rear frame reserved hole 2, and then the first guide frame 3 is connected to the second guide frame 7, so that the first guide cylinder wall 4 and the second guide cylinder wall 6 cooperate to guide the drill rod, and the guide upper blade 10 and the guide lower blade 5 are bent 45 degrees to further guide the drill rod. The drill rod contacts the mounting plate 81, and the wear-resistant layer 84 on its surface can prevent the mounting plate 81 and the guide cylinder wall from being worn, effectively extending the service life of the guide frame, and the ball 85 rotates in the empty groove 86 to further reduce friction, and the elastic sponge cushion 87 can protect the ball 85 and buffer it.

[0029] Example 2

[0030] The present embodiment is different from the embodiment 1 in that the cleaning assembly 9 includes a cleaning plate 91, a fixing rod 94 and a fixing groove 95, wherein the cleaning plate 91 is provided at the lower end of the mounting plate 81, the fixing rod 94 is provided at the upper end of the cleaning plate 91, and the fixing groove 95 is provided at a position corresponding to the fixing rod 94 inside the mounting plate 81.

[0031] By adopting the above technical solution, the fixing rod 94 is threadedly engaged with the fixing groove 95, and the cleaning plate 91 is fixed to the bottom of the mounting plate 81, so that the cleaning plate 91 cleans the drill rod, thereby avoiding contamination of the guide tube wall.

[0032] Specifically, the cleaning assembly 9 further includes a scraper 92 and a cleaning brush 93, wherein the cleaning brush 93 is disposed on the upper end of the surface of the cleaning plate 91, and the scraper 92 is disposed on the lower end of the surface of the cleaning plate 91.

[0033] By adopting the above technical solution, the scraper 92 performs preliminary scraping and cleaning of the soil on the surface of the drill pipe, and the cleaning brush 93 further scrubs and wipes the soil.

[0034] When this embodiment is used, the fixing rod 94 is threadedly engaged with the fixing groove 95, the cleaning plate 91 is fixed to the bottom of the mounting plate 81, the scraper 92 performs preliminary scraping and cleaning of the soil on the surface of the drill rod, and the cleaning brush 93 further scrubs and wipes the soil, thereby avoiding contamination of the guide cylinder wall.

[0035] Working principle and use process of the utility model: When the utility model is used, the positioning rod 82 is respectively inserted into the first guide cylinder wall 4 and the second guide cylinder wall 6 and fixed through the positioning ring 83, so that the mounting plate 81 is fixed on the inner surface of the first guide cylinder wall 4 and the second guide cylinder wall 6, and the rear connecting frame 1 is connected to the rotary drilling rig through the rear frame reserved hole 2, and then the first guide frame 3 is connected to the second guide frame 7, so that the first guide cylinder wall 4 and the second guide cylinder wall 6 cooperate to guide the drill rod, and the upper guide blade 10 and the lower guide blade 5 are bent 45 degrees to further guide the drill rod. For guiding, the drill rod contacts the mounting plate 81, and the wear-resistant layer 84 on its surface can prevent the mounting plate 81 from wearing out with the guide tube wall, effectively extending the service life of the guide frame. The ball 85 rotates in the empty groove 86, which can further reduce the friction. The elastic sponge cushion 87 can protect and buffer the ball 85. The fixing rod 94 is threadedly engaged with the fixing groove 95, and the cleaning plate 91 is fixed to the bottom of the mounting plate 81. The scraper 92 performs preliminary scraping and cleaning of the soil on the surface of the drill rod, and the cleaning brush 93 further scrubs and wipes the soil, thereby avoiding contamination of the guide tube wall.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drill rod guide device for a rotary drilling rig, comprising a rear connecting frame, characterized in that: Three rear frame reserved holes are arranged inside the rear connecting frame, a first guide frame is arranged on one side of the rear connecting frame, a first guide cylinder wall is arranged on the surface of the first guide frame, a second guide frame is arranged on one side of the first guide frame, a second guide cylinder wall is arranged on the surface of the second guide frame, wear-resistant components are arranged on the surfaces of the first guide cylinder wall and the second guide cylinder wall, a cleaning component is arranged at the lower end of the wear-resistant component, upper guide blades are arranged on the upper ends of the first guide cylinder wall and the second guide cylinder wall, and lower guide blades are arranged at the lower ends of the first guide cylinder wall and the second guide cylinder wall.

2. A rotary drilling rig drill rod guide device according to claim 1, characterized in that: The wear-resistant component includes a mounting plate, a positioning rod, a positioning ring and a wear-resistant layer, wherein the first guide cylinder wall and the second guide cylinder wall surface are provided with mounting plates, the wear-resistant layer is provided on one side of the two mounting plates close to each other, the positioning rod is provided on the other side of the mounting plate, and the positioning ring is provided on the surface of the positioning rod.

3. A drill rod guide device for a rotary drilling rig according to claim 2, characterized in that: The wear-resistant component also includes balls and empty grooves, wherein the mounting plate and the wear-resistant layer are both provided with empty grooves, and the balls are provided inside the empty grooves.

4. A drill rod guide device for a rotary drilling rig according to claim 3, characterized in that: The inner surface of one group of the two groups of empty slots located inside the mounting plate is provided with an elastic sponge cushion.

5. The drill rod guide device of a rotary drilling rig according to claim 2, characterized in that: The cleaning assembly comprises a cleaning plate, a fixing rod and a fixing groove, wherein the cleaning plate is arranged at the lower end of the mounting plate, the fixing rod is arranged at the upper end of the cleaning plate, and the fixing groove is arranged at a position corresponding to the fixing rod inside the mounting plate.

6. A drill rod guide device for a rotary drilling rig according to claim 5, characterized in that: The cleaning assembly also includes a scraper and a cleaning brush, wherein the cleaning brush is arranged on the upper end of the cleaning plate surface, and the scraper is arranged on the lower end of the cleaning plate surface.

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