A vertical spindle drilling rig spindle locking device

Abstract

The present invention discloses a spindle locking device for a vertical spindle drilling rig, specifically relating to the technical field of drilling equipment. The device comprises two positioning fixtures, two limiting devices, and a clamping device. The bottom surface of the positioning fixture is used to contact the surface of a cylinder housing. The positioning fixture has a clamping groove for fitting a hexagonal spindle and a spindle ring. The clamping device connects the two positioning fixtures and clamps the hexagonal spindle and the spindle ring. The positioning fixture has an open groove on a side away from the clamping groove. The limiting device comprises a moving portion and a limiting portion. The moving portion is movable within the open groove. One end of the limiting portion is positioned within the open groove, and the other end extends from a side opening of the open groove. The limiting portion is movable with the moving portion and is capable of abutting against the side wall of a cylinder bolt of the cylinder housing. The present invention has a simple structure, is easy to operate, is easy to install and disassemble at any time, improves work efficiency, and does not cause irreversible damage to the spindle and the drilling rig equipment.

Description

Technical Field

[0001] The invention relates to the technical field of drilling equipment, in particular to a main shaft locking device for a vertical spindle drilling rig. Background Art

[0002] Currently, drill hole quality requirements for geological core drilling are becoming increasingly stringent. Techniques such as single-hole multi-branch drilling and deflection correction are increasingly being employed due to drilling objectives, operational costs, and environmental considerations. Small-diameter directional drilling (DDT) is a key component of these DDT techniques. Small-diameter DDT often utilizes tools such as eccentric wedges and bent-screw drill bits. Bent-screw DDT is the most widely used and efficient method in the field. Bent-screw DDT uses high-pressure mud to drive the screw rotor, which in turn rotates the drive shaft and drill bit, breaking the rock. The upper drill string slides toward the bottomhole as the drill bit advances. Because the forces act in a reciprocal manner, while the mud drives the rotor clockwise, driving the drill bit clockwise to break the rock, the screw housing experiences a counterclockwise reaction force, which is transmitted to the upper drill pipe. Common vertical spindle drilling rigs, such as the XY-8, connect to the lower drill string through a main shaft, driving its rotation. However, the main shaft cannot be locked relative to the drill rig. Therefore, when using bent screw drills for directional drilling, the reaction force of the screw can easily cause the upper drill and spindle to rotate counterclockwise. This can cause the tool face angle adjusted during directional drilling to change, or even cause the upper drill to be reversed and disengaged, resulting in an accident in the hole.

[0003] During on-site directional correction, two nuts are typically welded in a straight line to the main shaft and the drilling rig's oil cylinder housing. The main shaft is then locked by threading a screw through the two nuts. Because the tightening of the drill rod varies with each addition, the two nuts are often misaligned, affecting the alignment of the screw and nut, necessitating re-welding. However, re-welding is time-consuming and inefficient, and frequent welding can cause irreversible damage to both the main shaft and the drilling rig itself. Summary of the Invention

[0004] The purpose of the present invention is to provide a spindle locking device for a vertical spindle drilling rig to solve the problems existing in the above-mentioned prior art. It has a simple structure, is easy to operate, can be easily installed and disassembled at any time, improves work efficiency, and will not cause irreversible damage to the spindle and drilling equipment.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] 4. The repairing kit for automotive dents, according to claim 1, wherein a bottom of the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut.

[0007] Preferably, the snap-fitting groove has a first snap-fitting groove and a second snap-fitting groove, the first snap-fitting groove has a first fitting surface and a second fitting surface, the angle between the first fitting surface and the second fitting surface is 120°, the first fitting surface and the second fitting surface are used to fit two adjacent side surfaces of the hexagonal main shaft, the second snap-fitting groove is an arc-shaped groove, and the arc-shaped surface of the arc-shaped groove is used to fit with the outer wall of the main shaft ring.

[0008] Preferably, the clamping device consists of two threaded adjustment rods and four nuts, and threaded connection holes passing through the positioning clamps are provided on both sides of the positioning clamps, and the axes of the threaded connection holes are perpendicular to the first direction. The threaded adjustment rods pass through the two threaded connection holes opposite to the two positioning clamps in turn to connect the two positioning clamps, and the threaded adjustment rods extend out of the two positioning clamps and are threadedly connected to the nuts at both ends, and the nuts abut against the side of the positioning clamp away from the groove.

[0009] Preferably, the first clamping groove also has a first connecting surface and a second connecting surface, the first connecting surface is connected to the side of the first fitting surface away from the second fitting surface, and the second connecting surface is connected to the side of the second fitting surface away from the first fitting surface, and the two threaded connecting holes pass through the first connecting surface and the second connecting surface respectively.

[0010] Preferably, the opening groove has a limiting groove and a through hole, the limiting groove has a first opening and a second opening, the first opening is connected to the outside world, and the second opening is connected to the through hole, the movable part can extend into the through hole and move in the through hole, one end of the limiting part is placed in the through hole, and the other end extends out of the through hole from the second opening.

[0011] Preferably, the limiting portion includes a cross bar and a vertical bar vertically connected to the cross bar, the cross bar is placed in the through hole, the cross bar can rotate relative to the through hole around the axis of the through hole, and drive the vertical bar to swing in the up and down directions, the diameter of the cross bar is smaller than the diameter of the through hole and larger than the opening width of the second opening, the through hole has an internal thread, the movable portion is two adjusting bolts, the two adjusting bolts are respectively inserted into the through hole from both ends of the through hole, and can abut against the two ends of the cross bar.

[0012] Preferably, the side surface of the limiting groove close to the bottom surface of the positioning fixture is an inclined surface, and the angle between the inclined surface and the bottom surface of the positioning fixture is less than 45°.

[0013] Preferably, the positioning fixture is integrally formed.

[0014] Compared with the prior art, the present invention has achieved the following technical effects:

[0015] The present invention provides a vertical spindle drilling rig spindle locking device, wherein two positioning clamps placed on opposite sides of the hexagonal spindle are connected through a clamping device, and the clamping device is adjusted so that the clamping grooves of the two positioning clamps are tightly fitted into the outer surfaces of the hexagonal spindle and the spindle ring, and the position of the limit device in the open groove is moved along the rotation direction of the hexagonal spindle so that the end of the limit part located outside abuts against the side wall of the cylinder bolt of the cylinder box body, and the two bolts abutted by the limiting parts of the two positioning clamps correspond to each other, which can effectively prevent the hexagonal spindle and the spindle ring from rotating clockwise or counterclockwise, thereby locking the spindle; when the directional correction is completed, the two positioning clamps are removed from the hexagonal spindle and the hexagonal spindle ring, which is convenient for subsequent work; the vertical spindle drilling rig spindle locking device has a simple structure, is easy to operate, is easy to install and disassemble at any time, improves work efficiency, and will not cause irreversible damage to the spindle and the drilling rig equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the vertical spindle drilling machine spindle locking device installed on the hexagonal spindle;

[0018] Figure 2 This is a structural diagram of the spindle locking device of a vertical spindle drilling rig;

[0019] Figure 3 It is a structural diagram of the hexagonal spindle, spindle ring, cylinder housing and cylinder bolts;

[0020] Figure 4 It is a structural diagram of the positioning fixture;

[0021] Figure 5 It is a structural diagram of the positioning fixture from another angle;

[0022] Figure 6 It is a structural diagram of the limiting device;

[0023] Figure 7 It is a structural diagram of the moving part of the limiting device;

[0024] Figure 8 It is a structural schematic diagram of the limiting part of the limiting device.

[0025] In the figure: 1-positioning fixture; 11-first fitting surface; 12-second fitting surface; 13-arc-shaped surface; 14-first connecting surface; 15-second connecting surface; 16-threaded connecting hole; 17-limiting groove; 18-through hole; 19-inclined surface; 2-limiting device; 21-adjusting bolt; 22-cross bar; 23-vertical bar; 3-clamping device; 31-threaded adjusting rod; 32-nut; 4-hexagonal spindle; 5-spindle ring; 6-cylinder housing; 7-cylinder bolt. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0027] The purpose of the present invention is to provide a spindle locking device for a vertical spindle drilling rig to solve the problems existing in the above-mentioned prior art. It has a simple structure, is easy to operate, can be easily installed and disassembled at any time, improves work efficiency, and will not cause irreversible damage to the spindle and drilling equipment.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] The present invention provides a vertical spindle drilling machine spindle locking device, such as Figure 1-2As shown, it includes two positioning fixtures 1, two limiting devices 2 and a clamping device 3. The bottom surface of the positioning fixture 1 is used to contact the surface of the cylinder box 6. A clamping groove is opened on one side of the positioning fixture 1. The clamping groove is used to fit the hexagonal spindle 4 and the spindle ring 5. The two positioning fixtures 1 are connected by the clamping device 3, and the clamping device 3 can adjust the distance between the two positioning fixtures 1, thereby enabling the two positioning fixtures 1 to clamp the hexagonal spindle 4 and the spindle ring 5. The side of the positioning fixture 1 away from the clamping groove is along the first direction ( Figure 4 An opening slot is provided which penetrates the positioning fixture 1 in the direction of the arrow in FIG. Figure 6 As shown, the limiting device 2 has a moving part and a limiting part. The moving part can extend into the open slot and move in the open slot. One end of the limiting part is placed in the open slot, and the other end extends from the side opening of the open slot and can abut against the side wall of the cylinder bolt 7 of the cylinder case 6. The limiting part can follow the moving part to move between the two bolts of the cylinder case 6. When performing directional correction, according to the position of the cylinder bolt 7 of the cylinder case 6 relative to the hexagonal spindle 4, the two positioning fixtures 1 are placed on the opposite sides of the hexagonal spindle 4, and the two positioning fixtures 1 are connected by the clamping device 3. The clamping device 3 is adjusted so that the clamping grooves of the two positioning fixtures 1 can fit tightly against the outer surfaces of the hexagonal spindle 4 and the spindle ring 5. By moving the limiting device 2 in the position of the open slot along the rotation direction of the hexagonal spindle 4, the end of the limiting part located on the outside is abutted against the cylinder bolt 7 of the cylinder case 6. The side walls of the bolt 7 abut against each other, and the two bolts abutted by the limiting parts of the two positioning fixtures 1 correspond to each other, which can effectively prevent the hexagonal spindle 4 and the spindle ring 5 from rotating clockwise or counterclockwise, thereby locking the spindle; when the directional correction is completed, the two positioning fixtures 1 are removed from the hexagonal spindle 4 and the hexagonal spindle 4 ring to facilitate subsequent work. The spindle locking device of the vertical spindle drilling rig has a simple structure and is easy to operate. It is easy to install and disassemble at any time, improves work efficiency, and will not cause irreversible damage to the spindle and drilling equipment. It should be noted that if Figure 3 As shown, the hexagonal spindle 4 and the spindle ring 5 can rotate relative to the cylinder housing 6 and the cylinder bolts 7, and the cylinder housing 6 and the bolts are fixed.

[0030] It is further preferred in the embodiment of the present invention that Figure 4-5As shown, the engaging groove comprises a first engaging groove and a second engaging groove. The first engaging groove comprises a first abutting surface 11 and a second abutting surface 12. The included angle between the first abutting surface 11 and the second abutting surface 12 is 120°. The first abutting surface 11 and the second abutting surface 12 are used to abut two adjacent side surfaces of the hexagonal spindle 4. The second engaging groove is an arcuate groove, and the arcuate surface 13 of the arcuate groove is used to abut the outer wall of the spindle ring 5. The height of the arcuate groove is greater than the height of the spindle ring 5, which is used to ensure that the first abutting surface 11 and the second abutting surface 12 can closely abut the two adjacent side surfaces of the hexagonal spindle 4. Further preferably, the first abutting surface 11 and the second abutting surface 12 have the same area, and the width of the first abutting surface 11 is greater than the side length of the end face of the hexagonal spindle 4, which can ensure that after the two positioning fixtures 1 are connected, there is space for the hexagonal spindle 4 and the spindle ring 5 to be sleeved.

[0031] In the embodiment of the present invention, it is further preferred that the clamping device 3 comprises two threaded adjustment rods 31 and four nuts 32, and threaded connection holes 16 penetrating the positioning fixture 1 are provided on both sides of the positioning fixture 1, the axes of the two threaded connection holes 16 being perpendicular to the first direction, and a threaded adjustment rod 31 sequentially passes through the threaded connection holes 16 opposite the two positioning fixtures 1, and the threaded adjustment rod 31 extends out of the two positioning fixtures 1 and is threadedly connected to the nuts 32 at both ends thereof, and the nuts 32 abut against the side of the positioning fixture 1 away from the groove. The threaded adjustment rod 31 and the nuts 32 facilitate the disassembly and connection of the two positioning fixtures 1, and the abutment of the nuts 32 against the side away from the positioning fixture 1 can strengthen the firmness of the connection between the two positioning fixtures 1, ensuring that the first fitting surface 11 and the second fitting surface 12 can closely fit the two adjacent side surfaces of the hexagonal main shaft 4.

[0032] In an embodiment of the present invention, it is further preferred that the first engaging groove further comprises a first connecting surface 14 and a second connecting surface 15. The first connecting surface 14 is connected to the side of the first fitting surface 11 away from the second fitting surface 12, and the second connecting surface 15 is connected to the side of the second fitting surface 12 away from the first fitting surface 11. Two threaded connecting holes 16 respectively extend through the first connecting surface 14 and the second connecting surface 15. Preferably, the angle between the first connecting surface 14 and the first fitting surface 11 is greater than 180° to facilitate insertion of the threaded adjusting rod 31 into the threaded connecting holes 16.

[0033] In the embodiment of the present invention, it is further preferred that the opening groove has a limiting groove 17 and a through hole 18, the limiting groove 17 has a first opening and a second opening relative to each other, the first opening is communicated with the outside, and the second opening is communicated with the through hole 18, the moving portion can extend into the through hole 18 and move in the through hole 18, one end of the limiting portion is placed in the through hole 18, and the other end extends out of the through hole 18 from the second opening, such as Figure 8As shown, the limiting portion includes a cross bar 22 and a vertical bar 23 vertically connected to the cross bar 22. The cross bar 22 is placed in the through hole 18. The cross bar 22 can rotate relative to the through hole 18 around the axis of the through hole 18 and drive the vertical bar 23 to swing in the up and down directions. The diameter of the cross bar 22 is smaller than the diameter of the through hole 18 and larger than the opening width of the second opening, which can prevent the adjusting bolt 21 and the cross bar 22 in the through hole 18 from detaching from the second opening. The through hole 18 has an internal thread, as shown in FIG. Figure 7 As shown, the movable portion is two adjusting bolts 21. The two adjusting bolts 21 are inserted into the through-hole 18 from both ends, and abut against the ends of the crossbar 22. When installing the limit device 2, first move the crossbar 22 from one end of the through-hole 18 into the through-hole 18. When the crossbar 22 enters the through-hole 18, the vertical rod 23 is aligned with the second opening. Then, the two adjusting bolts 21 are inserted into the through-hole 18 from both ends, and abut against the ends of the crossbar 22. When adjusting the limit device 2, the position of the crossbar 22 in the through-hole 18 is adjusted by adjusting the length of the overlapping section between the two adjusting bolts 21 and the through-hole 18. When it is necessary to prevent the hexagonal spindle 4 and the spindle ring 5 from rotating clockwise or counterclockwise, the crossbar 22 is adjusted to the position in the open slot along the rotation direction of the hexagonal spindle 4, and then the crossbar 22 is rotated to swing the vertical rod 23 until it abuts against the side wall of the cylinder bolt 7 of the cylinder box 6. The force between the vertical rod 23 and the bolt can effectively prevent the hexagonal spindle 4 and the spindle ring 5 from rotating clockwise or counterclockwise, thereby locking the spindle; then it is made to closely contact the side of the adjacent bolt.

[0034] In the embodiment of the present invention, it is further preferred that the side surface of the limiting groove 17 near the bottom surface of the positioning fixture 1 is an inclined surface 19, and the angle between the inclined surface 19 and the bottom surface of the positioning fixture 1 is less than 45 degrees. The inclined surface 19 can reduce the restriction on the downward swing of the vertical rod 23, increase the downward swing amplitude of the vertical rod 23, and facilitate the contact between the vertical rod 23 and the side wall of the cylinder bolt 7 of the cylinder housing 6.

[0035] It is further preferred in the embodiment of the present invention that the positioning fixture 1 is integrally formed to facilitate processing and manufacturing.

[0036] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A vertical spindle drilling rig spindle locking device, characterized by: The cam is adapted to engage with the cylinder and the piston rod of the piston rod and the piston rod of the piston rod, wherein the cam is adapted to engage with the cylinder and the piston rod of the piston rod. The opening extends out and can abut against the side wall of the cylinder bolt of the cylinder box body, and the limiting part can follow the moving part to move between the two bolts of the cylinder box body, and the opening groove has a limiting groove and a through hole, and the limiting part includes a cross bar and a vertical bar vertically connected to the cross bar. The cross bar is placed in the through hole, and the cross bar can rotate relative to the through hole around the axis of the through hole and drive the vertical bar to swing in the up and down directions. The limiting groove has a first opening and a second opening, the diameter of the cross bar is smaller than the diameter of the through hole and larger than the opening width of the second opening, and the through hole has an internal thread, and the moving part is two adjusting bolts, which are respectively inserted into the through hole from both ends of the through hole and can abut against the two ends of the cross bar.

2. The vertical spindle drilling machine spindle locking device according to claim 1, characterized in that: The clamping groove has a first clamping groove and a second clamping groove, the first clamping groove has a first fitting surface and a second fitting surface, the angle between the first fitting surface and the second fitting surface is 120°, the first fitting surface and the second fitting surface are used to fit two adjacent side surfaces of the hexagonal main shaft, the second clamping groove is an arc-shaped groove, and the arc-shaped surface of the arc-shaped groove is used to fit with the outer side wall of the main shaft ring.

3. The vertical spindle drilling machine spindle locking device according to claim 2, characterized in that: The clamping device consists of two threaded adjustment rods and four nuts. Threaded connection holes are provided on both sides of the positioning fixture, and the axes of the threaded connection holes are perpendicular to the first direction. The threaded adjustment rods pass through the two threaded connection holes opposite to the two positioning fixtures in turn to connect the two positioning fixtures. The threaded adjustment rods extend out of the two positioning fixtures, and both ends are threadedly connected to the nuts. The nuts abut the side of the positioning fixture away from the groove.

4. The spindle locking device for a vertical spindle drilling rig according to claim 3, characterized in that: The first clamping groove also has a first connecting surface and a second connecting surface, the first connecting surface is connected to the side of the first fitting surface away from the second fitting surface, and the second connecting surface is connected to the side of the second fitting surface away from the first fitting surface, and the two threaded connecting holes pass through the first connecting surface and the second connecting surface respectively.

5. The spindle locking device for a vertical spindle drilling rig according to claim 1, characterized in that: The first opening is connected to the outside, the second opening is connected to the through hole, the movable portion can extend into the through hole and move in the through hole, one end of the limiting portion is placed in the through hole, and the other end extends out of the through hole from the second opening.

6. The spindle locking device for a vertical spindle drilling rig according to claim 1, characterized in that: The side surface of the limiting groove close to the bottom surface of the positioning fixture is an inclined surface, and the angle between the inclined surface and the bottom surface of the positioning fixture is less than 45°.

7. The spindle locking device for a vertical spindle drilling rig according to claim 1, characterized in that: The positioning fixture is integrally formed.

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