Front clamp holder for drilling machine

Abstract

The utility model relates to the technical field of drilling machine equipment, in particular to a front clamp holder for a drilling machine, which comprises two groups of symmetrically arranged clamping components, the two groups of clamping components are mounted on a drilling machine frame in a split manner, the two groups of clamping components are matched to clamp a drilling tool in a centering manner, and a top space between the two groups of clamping components is open. A drilling tool can be arranged in the two groups of clamping assemblies from top to bottom; due to the fact that the two sets of clamping assemblies are installed on the drilling machine rack in a split mode, the top space between the two sets of clamping assemblies is open, and compared with a normally-closed type hydraulic clamping device and a combined type hydraulic clamping device in the prior art, when the drilling tool is clamped, the drilling tool can only be assembled in a penetrating mode through a center hole. The drilling tool can be directly placed into the clamp holder from top to bottom to be clamped and fixed, so that the drilling tool can be mounted without moving and adjusting the position of the drilling machine or integrally detaching the clamp holder under the condition that an ore body is arranged in front of the drilling tool and a power head is arranged behind the drilling tool, and the mounting convenience of the drilling tool is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling equipment, in particular to a front clamp for a drilling rig. Background Art

[0002] A drilling rig is a mechanical device that drives the drill tool into the ground to obtain physical geological data during the exploration or development of mineral resources (including solid minerals, liquid minerals, gas minerals, etc.).

[0003] Most of the existing holders for drilling tools are normally closed. The holder has an integral center through hole structure and is inserted through the center through hole when assembling the drilling tool.

[0004] During the coal mine drilling process, drill tools of different diameters are used according to demand. When the drill rig is close to the ore body, with the ore body in front and the power head behind, the longer drill tool is not conducive to penetrating from the center hole. The position of the drill rig needs to be moved and adjusted or the clamp needs to be disassembled as a whole, resulting in cumbersome and inconvenient operation of replacing and using drill tools in coal mines. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of the utility model is to provide a front clamp for a drilling rig, the top of which can be freely opened, and the drilling tool can be placed in the clamp from top to bottom for clamping and assembly, so as to improve the convenience of replacing and using the drilling tool in coal mines.

[0006] The technical solution adopted by the present invention is as follows: a front clamp for a drilling rig, comprising two groups of symmetrically arranged clamping assemblies, the two groups of clamping assemblies being installed on the drilling rig frame in a split manner, and the two groups of clamping assemblies cooperating to centrally clamp the drilling tool, the top space between the two groups of clamping assemblies being open, and the drilling tool can be loaded into the two groups of clamping assemblies from top to bottom.

[0007] Compared with the prior art, the beneficial effects of the present invention are:

[0008] When drilling with drill tools of different diameters in a narrow coal mine, the two groups of clamping assemblies are installed on the drill rig frame in a split manner, so that the top space between the two groups of clamping assemblies is open. Compared with the normally closed and composite hydraulic clamps in the prior art, which can only be assembled through the center hole when clamping the drill tool, the clamp of the utility model can directly put the drill tool into the clamp from top to bottom for clamping and fixing when assembling the drill tool. Therefore, when there is an ore body in front and a power head behind, there is no need to move and adjust the position of the drill rig or disassemble the clamp as a whole to install the drill tool, thereby improving the convenience of drilling tool installation.

[0009] As a preferred embodiment of the present invention, each group of the clamping assemblies includes a power source, and the output end of the power source is detachably connected to the clamper.

[0010] In this solution, the two clamps are pushed by the two power sources to move relative to each other, so that the drilling tool can be automatically centered and clamped, so that the drilling tool and the power head are concentric.

[0011] As a preferred embodiment of the present invention, a connecting groove is provided on a side of the clamp close to the power source, the connecting groove passes through the clamp, and a connecting block is fixedly connected to the output end of the power source. The connecting block is snap-fitted with the connecting groove to connect the clamp and the power source in the direction of movement of the output end of the power source, and the clamp can be pulled out and disassembled in a direction perpendicular to the direction of movement of the output end of the power source.

[0012] In this solution, the cross-section of the connecting groove is preferably T-shaped, and the connecting block is preferably a combination of two cylinders with different diameters, the cross-section of which is T-shaped. The clamp can be quickly installed or disassembled through the snap-fit between the connecting block and the connecting groove.

[0013] As a preferred embodiment of the present invention, each group of the clamping assemblies further includes a clamping seat, an accommodating cavity is provided on the inner side of the clamping seat, the accommodating cavity is used to clamp the drill bit, the output end of the power source extends into the accommodating cavity and is detachably connected to the clamp.

[0014] In this solution, by installing the clamp in the accommodating cavity, the clamp will not completely extend out of the accommodating cavity during use, thereby preventing the clamp from moving and falling off from the output end of the power source during use.

[0015] As a preferred embodiment of the present invention, two pads are fixedly connected in the accommodating cavity along the height direction of the accommodating cavity. The two pads are respectively located at the upper and lower sides of the clamper and are in contact with the surface of the clamper.

[0016] In this solution, the two pads cooperate to support and guide the movement of the clamp, which is beneficial to the installation and removal of the clamp and can reduce the shear force on the output end of the power source.

[0017] As a preferred embodiment of the present invention, a side groove is provided on the side of the clamping seat, the height of the side groove is greater than the height of the accommodating cavity, and the side groove is connected to the accommodating cavity; a baffle is detachably connected to the side groove.

[0018] In this solution, the baffle is used to limit the side of the clamp so that the clamp is stably installed in the accommodating cavity, preventing the clamp from moving along the width direction of the accommodating cavity when the power source pushes the clamp to move and clamp the drill tool, thereby affecting the stability of the drill tool during use.

[0019] As a preferred embodiment of the present invention, the tops of the two groups of clamping assemblies are detachably connected to a first connecting piece, and the first connecting piece is used to laterally connect the two groups of clamping assemblies or open the top space of the two groups of clamping assemblies.

[0020] In this solution, the two groups of clamping assemblies are connected by the first connecting member, and the two groups of clamping assemblies are connected as one, thereby improving the stability of the installation of the clamping assemblies. At the same time, the length of the first connecting member can control the installation distance between the two groups of clamping assemblies so that they can be installed according to actual needs.

[0021] As a preferred embodiment of the present invention, a top groove is provided on the top of the clamping seat; a first connecting hole is respectively provided on the top of the clamping seat and the first connecting member, a second connecting member is commonly passed through the first connecting hole, and a first limiting member is radially passed through one end of the second connecting member that extends through the first connecting member and extends out of the clamping seat.

[0022] In this solution, by removing the first limit member at one end of the first connecting member and pulling out and removing the second connecting member installed with the first limit member, one end of the first connecting member can be pulled upward, and the other end of the first connecting member can be rotated with the other second connecting member as the base point, thereby quickly opening the top space of the two groups of the clamping components.

[0023] As a preferred embodiment of the present invention, a mounting plate is fixedly connected to the clamping seat, and the mounting plate is located below the power source; a bottom groove is opened at the bottom of the clamping seat along the length direction of the clamping seat, and a connecting plate is detachably connected to the bottom groove for horizontally connecting two groups of the clamping components.

[0024] In this solution, the mounting plate is used to be fixed with the frame bolts, thereby installing the clamping seat on the frame, and the bottom of the two clamping seats is provided with the bottom groove, and the two bottom grooves are bolted with connecting plates to laterally connect the two clamping seats to improve the stability of the installation of the clamping assembly, and by installing the connecting plate in the bottom groove, the overall height of the clamping assembly can be reduced, thereby reducing the overall height of the drilling rig, avoiding the overall height of the drilling rig being too high to block the operator's field of view, which is beneficial for the operator to control the drilling rig.

[0025] As a preferred embodiment of the present invention, second connecting holes are respectively opened on the mounting plates and the clamping seats of the two groups of the clamping assemblies along the length direction of the clamping assembly, and a third connecting member is commonly passed through the second connecting holes to laterally connect the two groups of the clamping assemblies, and a second limiting member is radially passed through one end of the third connecting member that finally extends out of the mounting plate, and a sleeve is mounted on the outer circumferential surface of the third connecting member, and the sleeve is located between the two groups of the clamping assemblies.

[0026] In this solution, the third connecting member is used to laterally connect the two groups of the clamping assemblies, and the last protruding end of the third connecting member is radially penetrated by the second limiting member, so that the third connecting member can stably connect the two clamping assemblies, further improving the stability of the installation of the clamping assembly, and the length of the sleeve installed between the two groups of the clamping assemblies and the length of the first connecting member can control the distance between the two clamping seats to ensure that after the two clamps are close to clamp the drill bit, the clamps do not completely extend out of the accommodating cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the connection between the clamping seat and the first connecting piece of the front clamp for a drilling rig of the present invention.

[0028] Figure 2 It is a connection diagram of the second connecting member and the first limiting member of the front clamp for a drilling rig of the utility model.

[0029] Figure 3 The utility model is a connection diagram of a connecting plate and a clamping seat of a front clamp for a drilling rig.

[0030] Figure 4 The utility model is a schematic diagram of the connection between the clamper and the power source of the front clamper for drilling rigs.

[0031] Figure 5 It is a schematic diagram of the connection between the third connecting piece and the sleeve of the front clamp for a drilling rig of the present invention.

[0032] The reference numerals include: 1-first connecting member, 2-top groove, 3-first connecting hole, 4-second connecting member, 5-first limiting member, 6-clamping seat, 7-accommodating chamber, 8-power source, 9-clamp, 10-connecting groove, 11-connecting block, 12-side groove, 13-baffle, 14-pad, 15-mounting plate, 16-bottom groove, 17-connecting plate, 18-second connecting hole, 19-third connecting member, 20-second limiting member, 21-sleeve. DETAILED DESCRIPTION

[0033] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes and are not intended to limit the present invention.

[0034] In the description of this application, the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this application.

[0035] See also Figure 1 、 Figure 2 and Figure 4 As shown, the present application discloses a front clamp for a drilling rig, comprising two groups of symmetrically arranged clamping assemblies, and the tops of the two groups of the clamping assemblies are detachably connected to a first connecting member 1, and the first connecting member 1 is used to laterally connect the two groups of the clamping assemblies or open the top space between the two groups of the clamping assemblies, and each group of the clamping assemblies comprises a clamping seat 6 detachably connected to the bottom end of the first connecting member 1, and a top groove 2 is provided on the top of the clamping seat 6; first connecting holes 3 are respectively provided on the top of the clamping seat 6 and the first connecting member 1, and a second connecting member 4 is commonly passed through the first connecting hole 3, and a first limiting member 5 is radially passed through one end of the second connecting member 4 that passes through the first connecting member 1 and extends out of the clamping seat 6. Specifically, in this embodiment, the first limiting member 5 can be a pin. When one of the first limiting members 5 is pulled out and the second connecting member 4 installed on it is pulled out and removed, one end of the first connecting member 1 can be pulled to swing upward, and the other end of the first connecting member 1 rotates with the other second connecting member 4 as the base point, so that the top space of the two groups of the clamping components can be quickly opened. Moreover, since both ends of the first connecting member 1 are connected to the clamping seat 6 through the same structure, the disassembly operation can be performed regardless of which side of the drilling rig the operator is located, so as to pull the first connecting member 1 to open the top space between the two groups of the clamping components. When assembling the drilling tool, the drilling tool can be directly placed in the clamp from top to bottom for clamping and assembly.

[0036] See also Figures 1 to 4As shown, an accommodating cavity 7 is provided on the inner side of the clamping seat 6, and a clamp 9 for clamping the drilling tool is installed in the accommodating cavity 7. The clamp 9 is a slip. A power source 8 is fixedly connected to the clamping seat 6. The power source 8 adopts an oil cylinder in this embodiment. The output end of the power source 8 extends into the accommodating cavity 7 and is detachably connected to the clamp 9; a connecting groove 10 is provided on the side of the clamp 9 close to the power source 8. The connecting groove 10 passes through the clamp 9. The power source The output end of 8 is fixedly connected with a connecting block 11, and the connecting block 11 is snap-fitted with the connecting groove 10 to connect the clamp 9 and the power source 8 in the direction of movement of the output end of the power source 8, and at the same time, the clamp 9 can be pulled out and removed along the direction of movement perpendicular to the output end of the power source 8; a side groove 12 is provided on the side of the clamping seat 6, and the height of the side groove 12 is greater than the height of the accommodating cavity 7, and is connected to the accommodating cavity 7; a baffle 13 is detachably connected to the side groove 12. Specifically, the power source 8 is used to push the clamp 9 to clamp the drill tool. When the two clamps 9 are close to each other to clamp the drill tool, the clamp 9 does not fully extend out of the accommodating cavity 7. In this embodiment, the cross section of the connecting groove 10 is preferably T-shaped, and the connecting block 11 is preferably a combination of two cylinders with different diameters, and the cross section of the combination is T-shaped. The clamp 9 can be quickly installed or removed by the snap-fitting of the connecting block 11 and the connecting groove 10. During the specific operation: when the clamp 9 is severely worn and needs to be replaced, the bolts can be loosened first to remove the baffle 13, and then the clamp 9 can be directly pulled out of the clamping seat 6. When the clamp 9 moves, The connecting block 11 slides relative to the connecting groove 10 and can assist the clamp 9 to be pulled out stably, thereby realizing rapid disassembly of the clamp 9; when installing the clamp 9, it is only necessary to align the connecting groove 10 with the connecting block 11, and then push the clamp 9 to move into the accommodating cavity 7, and finally fix the baffle 13 with bolts in the side groove 12. The baffle 13 is used to limit the side of the clamp 9 so that the clamp 9 is stably installed in the accommodating cavity 7, avoiding the clamp 9 from moving along the width direction of the accommodating cavity 7 when the power source 8 pushes the clamp 9 to move and clamp the drilling tool, thereby affecting the stability of the drilling tool during use.

[0037] See also Figure 2As shown, two pads 14 are fixedly connected to the accommodating cavity 7 along the height direction of the accommodating cavity 7. The two pads 14 are respectively located on the upper and lower sides of the clamp 9 and are in contact with the surface of the clamp 9. Specifically, the two pads 14 cooperate to support and guide the movement of the clamp 9, which is convenient for installation and removal of the clamp 9. In addition, the pads 14 support the clamp 9 and reduce the shear force on the output end of the power source 8.

[0038] See also Figures 1 to 4 As shown, a mounting plate 15 is fixedly connected to the clamping seat 6, and the mounting plate 15 is located below the power source 8; along the length direction of the clamping seat 6, a bottom groove 16 is opened at the bottom of the clamping seat 6, and a connecting plate 17 is detachably connected to the bottom groove 16 for horizontally connecting the two sets of the clamping assemblies. Specifically, the mounting plate 15 is fixed to the frame with bolts, so that the clamping seat 6 is installed on the frame. The bottoms of the two clamping seats 6 are both opened with the bottom groove 16, and the connecting plates 17 are bolted to the two bottom grooves 16 to horizontally connect the two clamping seats 6 to improve the stability of the installation of the clamping assembly. By installing the connecting plate 17 in the bottom groove 16, the overall height of the clamping assembly can be reduced, thereby reducing the overall height of the drilling rig and increasing the operator's field of view, which is beneficial for the operator to operate the drilling rig.

[0039] See also Figure 2 、 Figure 3 and Figure 5 As shown, along the length direction of the clamping assembly, second connecting holes 18 are respectively opened on the mounting plates 15 and the clamping seats 6 of the two groups of the clamping assemblies, and a third connecting member 19 is commonly passed through the second connecting holes 18 to laterally connect the two groups of the clamping assemblies. A second limiting member 20 is radially passed through one end of the third connecting member 19 that finally extends out of the mounting plate 15, and a sleeve 21 is sleeved on the outer circumferential surface of the third connecting member 19, and the sleeve 21 is located between the two groups of the clamping assemblies. Specifically, in this embodiment, the second limit member 20 can be a pin, and the third connecting member 19 is used to laterally connect the two groups of the clamping assemblies, and the last protruding end of the third connecting member 19 is radially penetrated with the second limit member 20, so that the third connecting member 19 stably connects the two clamping assemblies, further improving the stability of the installation of the clamping assembly, and the length of the sleeve 21 installed between the two groups of the clamping assemblies and the length of the first connecting member 1 can control the distance between the two clamping seats 6, so as to ensure that after the two clamps 9 are close to the clamping drill bit, the clamp 9 does not fully extend out of the accommodating cavity 7, thereby avoiding failure of the connection between the clamp 9 and the power source 8.

[0040] When the front clamp for a drilling rig of the present invention is in use, when replacing drilling tools of different diameters for drilling in a narrow coal mine, first remove the first limiting member 5 at one end of the first connecting member 1, and pull out and remove the second connecting member 4 installed with the first limiting member 5. At this time, one end of the first connecting member 1 can be pulled to swing upward, and the other end of the first connecting member 1 can be rotated with the other second connecting member 4 as the base point, thereby quickly opening the top space of the two groups of the clamping components. Compared with the normally closed and composite hydraulic clamps in the prior art, which can only be assembled through the center hole when clamping the drilling tool, the clamp of the present invention can directly put the drilling tool into the clamp from top to bottom when assembling the drilling tool, so that when there is an ore body in front and a power head behind, there is no need to move and adjust the position of the drilling rig or disassemble the clamp as a whole. The drill tool can be installed by the holder, which improves the convenience of drilling tool installation. Subsequently, the two power sources 8 push the two clamps 9 to move relative to each other, which can automatically center and clamp the drill tool so that the drill tool is concentric with the power head. When the clamp 9 is severely worn and needs to be replaced, the bolts can be loosened first to disassemble the baffle 13, and then the clamp 9 can be directly pulled out of the clamping seat 6. When the clamp 9 moves, the connecting block 11 and the connecting groove 10 slide relative to each other, and can assist the clamp 9 to be pulled out stably, thereby realizing rapid disassembly of the clamp 9; when installing the clamp 9, it is only necessary to align the connecting groove 10 with the connecting block 11, and then push the clamp 9 to move and install it into the accommodating cavity 7, and finally fix the baffle 13 with bolts in the side groove 12.

[0041] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A front clamp for a drilling rig, characterized in that: It includes two groups of symmetrically arranged clamping assemblies, which are installed on the drilling rig frame in a split manner. The two groups of clamping assemblies can cooperate to clamp the drilling tools in a centralized manner. The top space between the two groups of clamping assemblies is open, and the drilling tools can be loaded into the two groups of clamping assemblies from top to bottom.

2. The front clamp for drilling rig according to claim 1, characterized in that: Each group of the clamping components includes a power source, and the output end of the power source is detachably connected to a clamper.

3. The front clamp for drilling rig according to claim 2, characterized in that: A connecting groove is provided on the side of the clamp close to the power source, and the connecting groove passes through the clamp. A connecting block is fixedly connected to the output end of the power source, and the connecting block is engaged with the connecting groove to connect the clamp and the power source in the direction of movement of the output end of the power source. At the same time, the clamp can be pulled out and disassembled in a direction perpendicular to the direction of movement of the output end of the power source.

4. The front clamp for drilling rig according to claim 2, characterized in that: Each group of the clamping assemblies further includes a clamping seat, an inner side of which is provided with an accommodating cavity, the accommodating cavity being used to clamp the clamp of the drilling tool, the output end of the power source extending into the accommodating cavity and being detachably connected to the clamp.

5. The front clamp for drilling rig according to claim 4, characterized in that: Along the height direction of the accommodating cavity, two pads are fixedly connected in the accommodating cavity. The two pads are respectively located on the upper and lower sides of the clamper and are in contact with the surface of the clamper.

6. The front clamp for drilling rig according to claim 4, characterized in that: A side groove is provided on the side of the clamping seat. The height of the side groove is greater than the height of the accommodating cavity and is communicated with the accommodating cavity. A baffle is detachably connected to the side groove.

7. The front clamp for drilling rig according to claim 4, characterized in that: The tops of the two groups of clamping assemblies are detachably connected to a first connecting piece, and the first connecting piece is used to laterally connect the two groups of clamping assemblies or open the top space of the two groups of clamping assemblies.

8. The front clamp for drilling rig according to claim 7, characterized in that: A top groove is provided on the top of the clamping seat; a first connecting hole is respectively provided on the top of the clamping seat and the first connecting member, a second connecting member is passed through the first connecting hole, and a first limiting member is radially passed through one end of the second connecting member that passes through the first connecting member and extends out of the clamping seat.

9. The front clamp for drilling rig according to claim 4, characterized in that: A mounting plate is fixedly connected to the clamping seat, and the mounting plate is located below the power source; a bottom groove is opened at the bottom of the clamping seat along the length direction of the clamping seat, and a connecting plate is detachably connected to the bottom groove for horizontally connecting two groups of the clamping components.

10. The front clamp for drilling rig according to claim 9, characterized in that: Along the length direction of the clamping assembly, second connecting holes are respectively opened on the mounting plates and the clamping seats of the two groups of the clamping assemblies. A third connecting member is commonly passed through the second connecting holes to laterally connect the two groups of the clamping assemblies. A second limiting member is radially passed through one end of the third connecting member that finally extends out of the mounting plate. A sleeve is sleeved on the outer circumferential surface of the third connecting member, and the sleeve is located between the two groups of the clamping assemblies.

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