Drill rod lifter of drilling machine, drilling auxiliary device and down-the-hole drill

Abstract

The utility model provides a drill rod lifter of a drilling machine, a drilling auxiliary device and a down-the-hole drill, the drill rod lifter of the drilling machine comprises a base provided with a drill rod lifting hole for a drill rod to pass through; the two drill rod supporting oil cylinders are symmetrically arranged on the two sides of the base, and clamping heads are arranged at the ends of piston rods of the drill rod supporting oil cylinders; the two drill clamps are symmetrically arranged in the base in a sliding mode, one end of each drill clamp is provided with a clamping groove which is connected with the clamping head in a matched and clamped mode and used for restraining the axial direction, the left side and the right side of the clamping head, and the other end of each drill clamp is provided with an arc-shaped groove used for holding a drill rod; the centralizing sleeve assembly is detachably arranged at the top of the base, is coaxial with the drill rod centralizing hole and is used for centralizing an impactor when a drilling machine is used for drilling; according to the utility model, the installation bolt of the drill rod lifting oil cylinder can be prevented from being broken, and the impactor can be effectively straightened during trepanning.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling rigs, in particular to a drilling rig drill support, a drilling auxiliary device and a down-the-hole drilling rig. Background Art

[0002] The drill clamp and the drill supporting cylinder of the current down-the-hole drill are connected by bolts. When the drill rig is loading and unloading the drill rod, the piston rod of the drill supporting cylinder is fully retracted to facilitate the passage of the drill rod or the impactor through the drill supporter. However, in the actual operation process, the operator often makes an error and lifts the drill rod before the piston rod of the drill supporting cylinder is retracted. At this time, the drill clamp is subjected to upward friction, which can easily cause the drill clamp mounting bolts and the drill supporting cylinder mounting bolts to break, making the drill clamp cylinder prone to oil leakage. In addition, the traditional drill supporter has no dust-blocking function and cannot effectively straighten the impactor when drilling.

[0003] Therefore, there is an urgent need for a drill supporter, a drilling auxiliary device and a down-the-hole drill, which can prevent the mounting bolts of the drill support cylinder from breaking and effectively straighten the impactor when drilling. Utility Model Content

[0004] The utility model aims to provide a drill supporter, a drilling auxiliary device and a down-the-hole drill, aiming to solve the technical problems that the mounting bolts of the drill support cylinder of the traditional drill supporter are easy to break and the impactor cannot be effectively straightened.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a drill support device, comprising:

[0006] The base has a support hole for the drill rod to pass through.

[0007] Two drill supporting oil cylinders are symmetrically arranged on both sides of the base, and the ends of the piston rods of the drill supporting oil cylinders are provided with clamps;

[0008] Two drill clamps are slidably and symmetrically arranged in the base, one end of the drill clamp is provided with a clamping groove that matches the clamp head and is used to constrain the axial direction and left and right sides of the clamp, and the other end has an arc-shaped groove for holding the drill rod;

[0009] The straightening sleeve assembly is detachably arranged on the top of the base and is coaxially arranged with the supporting drill hole, and is used for straightening the impactor when the drilling rig is drilling.

[0010] As a further improvement of the above solution, the base includes a top plate and a bottom plate that are spaced apart and arranged in parallel, and two side plates for connecting the top plate and the bottom plate.

[0011] The gap between the top plate and the bottom plate and the two side plates form a space for the brazing clamp to slide.

[0012] As a further improvement of the above solution, through holes are provided on both the top plate and the bottom plate, and the two through holes are coaxially arranged up and down to form the supporting drill hole.

[0013] As a further improvement of the above solution, the cross section of the clamping head is circular, square or polygonal.

[0014] As a further improvement of the above solution, the centralizing sleeve assembly includes a centralizing sleeve and a clamping sleeve that is arranged in a split manner, and the centralizing sleeve is detachably arranged on the top of the base through the clamping sleeve.

[0015] In a second aspect, the present invention further provides a drilling auxiliary device, comprising a connecting bracket for mounting on a drill rig slide and driven by a dust collecting cylinder to move up and down, a dust collecting hood for collecting debris during drilling, and the drill support provided in the first aspect;

[0016] The dust hood is arranged on the bottom of the drill support through a dust hood mounting seat, and the drill support is arranged on the connecting bracket.

[0017] As a further improvement of the above solution, the dust collecting cover includes a pipe sleeve section and a cover body connected to one end of the pipe sleeve section.

[0018] One end of the cover body is fastened to the outer wall of the pipe sleeve section through a clamp; the other end of the cover body has a radial opening so as to effectively collect gravel.

[0019] In a third aspect, the present invention further provides a down-the-hole drill, comprising the drilling auxiliary device provided in the first aspect.

[0020] Since the utility model adopts the above technical solution, the beneficial effects of this application are:

[0021] The utility model provides a drill support device, which eliminates the traditional bolt connection between the drill clamp and the drill supporting oil cylinder. A clamping head arranged at the end of the piston rod of the drill supporting oil cylinder is clamped in a corresponding matching clamping groove of the drill clamp, and the clamping groove can constrain the clamping head in its axial direction and on both the left and right sides. There is no fixed constraint on the upper and lower sides of the clamping head. With such a configuration, even if the operator makes an erroneous operation (lifting the drill rod when the piston rod of the drill supporting oil cylinder is not retracted, and the drill clamp is still in a state of holding the drill rod), the drill clamp is subjected to an upward friction force. However, since there is no fixed constraint between the clamping head and the drill clamp in the upper and lower directions, the friction force will not be transmitted to the drill clamping oil cylinder, the mounting bolts between the drill clamping oil cylinder and the base will not be broken, and the seal of the drill clamping oil cylinder will not be subjected to the upward force to cause eccentric wear and oil leakage in the cylinder.

[0022] In addition, in the drill support device of the present drilling rig, the other end of the drill clamp has an arc-shaped groove for holding the drill rod, and the arc-shaped groove matches the diameter of the drill rod, so that the gap between the two is small, which can play a dust-blocking role when drilling; the drill support device of the present drilling rig is also provided with a straightening sleeve assembly, and the straightening sleeve assembly is detachably arranged on the top of the base and coaxially arranged with the drill support hole. The setting of the detachable straightening sleeve assembly can match impactors of different sizes, and the impactor can be straightened when drilling to ensure the drilling angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the implementation methods or the description of the prior art. Obviously, the drawings described below are only some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0024] Figure 1 This is an explosion diagram of a drill support device disclosed in the utility model;

[0025] Figure 2 This is a top view of a drill supporter (excluding the support sleeve assembly) disclosed in the utility model. Figure 2 ;

[0026] Figure 3 This is an exploded schematic diagram of the drill supporting oil cylinder and drill clamp disclosed in the utility model;

[0027] Figure 4 This is an exploded schematic diagram of a drilling auxiliary device (excluding the connecting bracket) disclosed in the utility model;

[0028] Figure 5 It is a partial side view schematic diagram of a down-the-hole drilling rig disclosed in the utility model.

[0029] Reference numerals:

[0030] 0. Drilling rig support; 1. Base; 11. Support hole; 12. Top plate; 13. Bottom plate; 14. Side plate; 2. Support cylinder; 21. Clamp; 3. Drill clamp; 31. Clamping slot; 32. Arc-shaped groove; 4. Centralizing sleeve assembly; 41. Centralizing sleeve; 42. Clamping sleeve;

[0031] 01. Connecting bracket; 02. Dust hood; 021. Pipe sleeve section; 022. Hood body; 03. Dust hood mounting base; 04. Dust cylinder.

[0032] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] It should be noted that all directional indications (such as up, down, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, in this utility model, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of such features.

[0036] Moreover, the technical solutions between the various embodiments of the present invention can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] Example 1

[0038] See also Figure 1-Figure 3 The utility model provides a drill support device, comprising:

[0039] The base 1 has a drill hole 11 for the drill rod to pass through.

[0040] Two drill supporting cylinders 2 are symmetrically arranged on both sides of the base 1. The ends of the piston rods of the drill supporting cylinders 2 are provided with a clamp 21. Specifically, the axis of the drill supporting cylinders 2 is perpendicular to the axis of the drill supporting hole 11. The two drill supporting cylinders 2 are correspondingly mounted on both sides of the base 1 by bolts.

[0041] Two drill clamps 3 are slidably symmetrically arranged in the base 1. One end of the drill clamp 3 is provided with a clamping groove 31 that matches the clamping head 21 and is used to constrain its axial direction and left and right sides. The other end has an arc-shaped groove 32 for holding the drill rod. Specifically, the cross section of the clamping head 21 is circular, square or polygonal, and the shape of the clamping groove 31 is a shape that matches the cross section of the clamping head 21, so that it can constrain the clamping head 21 in the axial direction and left and right sides, but will not constrain the clamping head 21 in the upper and lower sides. In this embodiment, see Figure 3 The groove is a T-slot, so that the clamping head 21 can be easily clamped in the T-slot, and the piston rod of the drill supporting cylinder 2 transmits power to the corresponding drill clamp 3 through the clamping head 21, so that the drill clamp 3 can slide in the base 1, thereby realizing the holding of the drill rod;

[0042] The centering sleeve assembly 4 is detachably mounted on the top of the base 1 and is coaxially arranged with the supporting hole 11, and is used to center the impactor when drilling with a drilling rig;

[0043] In the present invention, the traditional bolt connection between the drill clamp 3 and the drill supporting cylinder 2 is eliminated. Instead, a clamping head 21 provided at the end of the piston rod of the drill supporting cylinder 2 is clamped into a corresponding matching clamping groove 31 of the drill clamp 3, and the clamping groove 31 can constrain the clamping head 21 in its axial direction and on both the left and right sides. There is no fixed constraint on the upper and lower sides of the clamping head 21. With such a configuration, even if the operator makes an erroneous operation (lifting the drill rod when the piston rod of the drill supporting cylinder 2 is not retracted, and the drill clamp 3 is still in the state of holding the drill rod), the drill clamp 3 is subjected to an upward friction force. However, since there is no fixed constraint between the clamping head 21 and the drill clamp 3 in the upper and lower directions, the friction force will not be transmitted to the drill clamping cylinder, the mounting bolts between the drill clamping cylinder and the base 1 will not break, and the seal of the drill clamping cylinder will not be subjected to the upward force to cause eccentric wear and oil leakage in the cylinder.

[0044] In addition, in the drill support device 0 of the present drilling rig, the other end of the drill clamp 3 has an arc-shaped groove 32 for holding the drill rod, and the arc-shaped groove 32 matches the diameter of the drill rod, so that the gap between the two is small, which can play a dust-blocking role when drilling; the drill support device 0 of the present drilling rig is also provided with a straightening sleeve assembly 4, and the straightening sleeve assembly 4 is detachably arranged on the top of the base 1 and is coaxially arranged with the drill support hole 11. The setting of the detachable straightening sleeve assembly 4 can match impactors of different sizes, and the impactor can be straightened when drilling to ensure the drilling angle.

[0045] As a preferred embodiment, the base 1 includes a top plate 12 and a bottom plate 13 that are spaced apart and arranged in parallel, and two side plates 14 for connecting the top plate 12 and the bottom plate 13.

[0046] The gap between the top plate 12 and the bottom plate 13 and the two side plates 14 form a space for the brazing clamp 3 to slide; specifically, the two side plates 14 are symmetrically arranged in the gap between the bottom plates 13 and the bottom plates 13, on the one hand playing a supporting and connecting role, and on the other hand serving as a guide plate for the brazing clamp 3 to slide in the base 1.

[0047] As a preferred embodiment, a through hole is provided on both the top plate 12 and the bottom plate 13, and the two through holes are coaxially arranged up and down to constitute the supporting drill hole 11; specifically, the top, the bottom plate 13 and the two side edges can be formed by welding, and then the supporting drill hole 11 is processed, so as to effectively ensure the coaxiality of the two through holes on the top plate 12 and the bottom plate 13.

[0048] As a preferred embodiment, the centralizing sleeve assembly 4 includes a centralizing sleeve 41 and a clamping sleeve 42 that is split apart. The centralizing sleeve 41 is detachably mounted on the top of the base 1 through the clamping sleeve 42.

[0049] Specifically, the straightening sleeve 41 includes a sleeve body and a straightening edge arranged at one end of the sleeve body; the drill sleeve 42 includes a half drill sleeve body and a half flange arranged at one end of the drill sleeve body; the straightening sleeve 41 is sleeved in the through hole surrounded by the two half drill sleeve bodies, and is connected to the top plate 12 of the base 1 through the half flange; the setting of the detachable straightening sleeve assembly 4 can match impactors of different sizes, straighten the impactor when drilling, and ensure the drilling angle.

[0050] Example 2

[0051] See also Figure 4 The present invention also provides a drilling auxiliary device, comprising a connecting bracket 01 for being mounted on a drill frame slide and driven by a dust collecting cylinder 04 to move up and down, a dust collecting hood 02 for collecting gravel during drilling, and the drill support 0 provided in Example 1;

[0052] The dust cover 02 is arranged at the bottom of the drill support 0 through the dust cover mounting seat 03, and the drill support 0 is arranged on the connecting bracket 01;

[0053] During drilling operations, the drill rod passes through the straightening sleeve assembly 4, the supporting drill hole 11 and the dust cover 02 in sequence to perform drilling operations. The piston rod of the supporting drill cylinder 2 extends to drive the drill clamp 3 to embrace the drill rod; the dust cover 02 can prevent gravel from splashing and play a role in blocking slag.

[0054] As a preferred embodiment, the dust collecting cover 02 includes a pipe sleeve section 021 and a cover body 022 connected to one end of the pipe sleeve section 021.

[0055] One end of the cover body 022 is fastened to the outer wall of the sleeve section 021 by a clamp; the other end of the cover body 022 has a radial opening to effectively collect gravel; the sleeve section 021 is also provided with a gravel discharge pipe to discharge the collected gravel, etc., so that the drilling operation can proceed smoothly.

[0056] Example 3

[0057] See also Figure 5 The present invention also provides a down-the-hole drill, comprising the drilling auxiliary device provided in Example 2;

[0058] Specifically, the drilling auxiliary device is installed on the slider of the drill rig, and the dust collecting cylinder 04 drives the slider to move up and down, thereby driving the drilling auxiliary device to move up and down. The drill rod passes through the straightening sleeve assembly 4, the supporting drill hole 11 and the dust collecting cover 02 in sequence to perform drilling operations. The piston rod of the supporting drill cylinder 2 extends to drive the drill clamp 3 to embrace the drill rod; the dust collecting cover 02 can prevent gravel from splashing and play a role in blocking slag.

[0059] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, within the scope of the present invention are included in the patent protection scope of the present invention.

Claims

1. A drill support, characterized in that: include: The base has a drill hole for the drill rod to pass through; Two drill supporting oil cylinders are symmetrically arranged on both sides of the base, and the ends of the piston rods of the drill supporting oil cylinders are provided with clamps; Two drill clamps are slidably and symmetrically arranged in the base, one end of the drill clamp is provided with a clamping groove that matches the clamp head and is used to constrain the axial direction and left and right sides of the clamp, and the other end has an arc-shaped groove for holding the drill rod; The straightening sleeve assembly is detachably arranged on the top of the base and is coaxially arranged with the supporting drill hole, and is used for straightening the impactor when the drilling rig is drilling.

2. A drill support according to claim 1, characterized in that: The base includes a top plate and a bottom plate that are spaced apart and arranged in parallel, and two side plates for connecting the top plate and the bottom plate. The gap between the top plate and the bottom plate and the two side plates form a space for the brazing clamp to slide.

3. A drill support according to claim 2, characterized in that: The top plate and the bottom plate are both provided with through holes, and the two through holes are coaxially arranged up and down to form the supporting drill hole.

4. A drill support according to any one of claims 1 to 3, characterized in that: The cross section of the clamping head is circular, square or polygonal.

5. A drill support according to any one of claims 1 to 3, characterized in that: The centralizing sleeve assembly comprises a centralizing sleeve and a clamping sleeve which is arranged in two parts. The centralizing sleeve is detachably arranged on the top of the base through the clamping sleeve.

6. A drilling auxiliary device, characterized in that: It comprises a connecting bracket for being mounted on a drill rig slide and driven by a dust collecting cylinder to move up and down, a dust collecting cover for collecting gravel during drilling, and a drill support according to any one of claims 1 to 5; The dust hood is arranged on the bottom of the drill support through a dust hood mounting seat, and the drill support is arranged on the connecting bracket.

7. A drilling auxiliary device according to claim 6, characterized in that: The dust collecting cover comprises a pipe sleeve section and a cover body connected to one end of the pipe sleeve section. One end of the cover body is fastened to the outer wall of the pipe sleeve section through a clamp; the other end of the cover body has a radial opening.

8. A down-the-hole drill, characterized in that: The invention comprises a drilling auxiliary device as claimed in claim 6 or 7.

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