Underground drill rig chuck assembly device for geological mining

Abstract

The underground drill rig chuck assembly device for geological mining comprises a drill rig fixed value motor, the output end of the drill rig fixed value motor is connected with a chuck assembly, the chuck assembly is connected with a drill rod, the drill rig fixed value motor is connected with a locking frame, and the locking frame makes contact with the chuck assembly. According to the underground drill rig chuck assembly device for geological mining, the problems that according to an existing underground drill rig chuck assembly, a drill rod is mostly fixed through a pneumatic chuck or a hydraulic chuck, but looseness of the pneumatic chuck or the hydraulic chuck is common, and particularly, looseness of the hydraulic chuck may be caused by various factors, so that the drill rod cannot be fixed easily are solved. If the bolt connecting part is possibly impacted or vibrated during long-time drilling, and then the drill rod is separated or loosened, the hydraulic chuck can ensure that secondary clamping or further clamping can be carried out on the loosened drill rod when the hydraulic chuck goes wrong, operation can be continued, and the stability of the hydraulic chuck is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel drilling machines, in particular to a tunnel drilling machine chuck assembly device for geological mining. Background Art

[0002] Patent No. CN112412359A discloses a hydraulic chuck assembly for tunnel drilling rigs, in which the rotation speed is proportional to the clamping force, including a self-generating clamping mechanism, wherein the middle of the self-generating clamping mechanism is fixedly connected to a drill shaft, the outer side of the drill shaft is movably connected to a clamping disc, the bottom of the clamping disc is fixedly connected to a synchronization rod, and the top of the synchronization rod is movably connected to a driving gear. The hydraulic chuck assembly for tunnel drilling rigs, in which the rotation speed is proportional to the clamping force, transmits electricity through the current collecting bin, so that the electrode plate is electrified, and then the current in the push bin is hardened in coordination with the current of the electrode plate, so that the extrusion piston in the push bin moves inward to clamp the drill shaft. The faster the rotation speed of the drill shaft, the greater the current generated, and the more firmly the connection between the chuck and the drill shaft is, thereby reducing the slippage caused by the decrease in the clamping force of the chuck, thereby reducing the eccentric movement of the drill shaft and reducing the wear of the workpiece.

[0003] The tunnel drill is a device specially used for drilling operations in underground tunnels (tunnels). It has the characteristics of good disassembly, light parts, and flexible adjustment of drilling direction (within the range of 0 to 360 degrees). It is mainly used for deep geological exploration in tunnels (tunnels), and analyzes geological structures and lithological characteristics through drilling sampling; in coal mines, tunnel drills are also used for drilling operations such as gas extraction holes, grouting and fire prevention holes, water exploration holes, coal exploration holes, and dust-proof water injection holes to ensure safe production in coal mines and improve mining conditions.

[0004] Most of the existing tunnel drilling rig chuck assemblies use pneumatic chucks or hydraulic chucks to fix the drill rod, but loosening of pneumatic or hydraulic chucks is a common problem, especially for hydraulic chucks. The loosening may be caused by many factors. For example, during long-term drilling, the bolt connection may be subjected to impact or vibration, which may cause the drill rod to detach or loosen. The staff will clamp the bolts at the loose parts to restore the clamping force. If the looseness is severe, it may be necessary to replace the damaged parts.

[0005] In this regard, the present invention designs a chuck assembly device for a tunnel drill for geological mining, which performs secondary clamping or further clamping for loose drill rods, ensuring that when a problem occurs with the hydraulic chuck, the device can continue to operate to ensure the stability of the hydraulic chuck. Summary of the invention

[0006] The object of the present invention is to provide a chuck assembly device for a tunnel drill for geological mining to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a chuck assembly device for a tunnel drill rig for geological mining, comprising a drill rig fixed value motor, wherein the output end of the drill rig fixed value motor is connected to the chuck assembly, the chuck assembly is connected to the drill rod, the drill rig fixed value motor is connected to a locking frame, and the locking frame is in contact with the chuck assembly.

[0008] Furthermore, the chuck assembly includes a transmission head, one end of the transmission head is connected to the drilling rig fixed motor, and the other end of the transmission head is connected to the thrust block. A gap is formed between the thrust block and the transmission head, and the gap is slidably connected to the control block. The inner ring of the control block is slidably connected to the outer ring of the docking block. The docking block has a mounting hole, and the inner wall of the mounting hole has a plurality of sliding grooves equidistantly arranged in a ring shape. The sliding groove is slidably connected to the clamping block, and the clamping block is clamped with the clamping groove provided on the drill rod.

[0009] Furthermore, the inner wall of the docking block is slidably connected to the locking rod push block, one end of the locking rod push block is in sliding contact with the clamping block, the locking rod push block is connected to the threaded rod, and the threaded rod is threadedly connected to the threaded hole opened in the pushing block.

[0010] Furthermore, both ends of the clamping block are provided with inclined surfaces, and the inclined surfaces are engaged with the engaging grooves provided on the drill rod.

[0011] Furthermore, the cross-sections of the transmission head, the control block, and the docking block are all hexagonal, and one end of the docking block and one end of the control block are in contact with the locking frame.

[0012] Furthermore, the locking frame is connected to the push rod at one end away from the drilling rig fixed value motor, the push rod is in contact with one end of the docking block, the top of the locking frame is connected to the limit block, the limit block has a sliding cavity, the sliding cavity is slidably connected to the card block, a reset elastic piece is symmetrically arranged at the bottom of the card block, the reset elastic piece is connected to the bottom of the sliding cavity, the card block is in contact with one side of the control block, and the card block is slidably engaged with the anti-rotation groove at the bottom of the control block.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the chuck assembly device of the tunnel drill for geological mining is reasonable and has the following advantages:

[0014] The drill rod setting motor can not only transmit the drill rod operation, but also can clamp the drill rod by opening and closing the control chuck assembly of the locking frame structure, thereby ensuring secondary clamping or further clamping of the drill rod when a problem occurs with the pneumatic chuck, so as to continue the operation; the drill rod is placed in the mounting hole opened by the docking clamping block, and the clamping block is pressed, and then the sliding control block causes the anti-rotation groove at the bottom of the clamping block to clamp with the clamping block, and then the drilling rig setting motor rotates to cause the transmission head and the propulsion block to rotate, and the threaded hole in the propulsion block rotates to cause the threaded rod connected with the thread to move forward, and the forward-moving threaded rod will drive the locking rod push rod to move and squeeze the clamping block, so that the clamping block is squeezed into the clamping groove opened in the drill rod, thereby completing the locking and clamping of the drill rod. This method is simple and easy to operate, and also uses the power of the drill rod setting motor for locking, so that the overall cost of the device is controlled, and the power kinetic energy of the drill rod setting motor is also reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the bottom structure of the present invention;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 An exploded view of the present invention;

[0019] Figure 5 It is a partial cross-sectional schematic diagram of the present invention;

[0020] Figure 6 It is a structural schematic diagram of the drill rod in the present invention;

[0021] Figure 7 It is a schematic diagram of the structure of the transmission head and the propulsion block in the present invention;

[0022] Figure 8 It is a structural schematic diagram of the control block in the present invention;

[0023] Fig. 9 is a cross-sectional schematic diagram of the locking frame in the present invention;

[0024] Fig.10 It is a schematic diagram of the structure of the clamping block in the present invention.

[0025] In the figure: 1-drilling rig fixed value motor, 2-drill rod, 3-chuck assembly, 31-transmission head, 32-control block, 321-anti-rotation groove, 33-advance block, 331-threaded hole, 34-lock rod push block, 341-threaded rod, 35-clamping block, 36-docking card block, 4-locking frame, 41-thrust rod, 42-limiting block, 43-clamping block, 44-reset elastic member. DETAILED DESCRIPTION

[0026] 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 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 creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-10 The present invention provides a technical solution: a chuck assembly device for a tunnel drill for geological mining, including a drill rig fixed value motor 1, the output end of the drill rig fixed value motor 1 is connected to the chuck assembly 3, the chuck assembly 3 is connected to the drill rod 2, the drill rig fixed value motor 1 is connected to the locking frame 4, the locking frame 4 is in contact with the chuck assembly 3, and the fixed value motor can not only transmit the drill rod 2 to operate, but also control the chuck assembly 3 to open and close through the structure on the locking frame 4, and clamp the drill rod 2, thereby ensuring that when a problem occurs with the pneumatic chuck, the drill rod 2 is loosened and clamped for a second time or further, so as to continue the operation.

[0028] The chuck assembly 3 includes a transmission head 31, one end of the transmission head 31 is connected to the drilling rig fixed value motor 1, and the other end of the transmission head 31 is connected to the propulsion block 33. A gap is formed between the propulsion block 33 and the transmission head 31, and the gap is slidably connected to the control block 32. The inner ring of the control block 32 is slidably connected to the outer ring of the docking block 36. The docking block 36 has a mounting hole, and the inner wall of the mounting hole has a plurality of slide grooves equidistantly arranged in a ring shape. The slide groove is slidably connected to the clamping block 35, and the clamping block 35 is clamped with the clamping groove provided on the drill rod 2. The control block 32 can act as a switching switch to ensure that the power sliding switching of the transmission drill rod 2 controls the installation and disassembly of the drill rod 2.

[0029] The inner wall of the docking block 36 is slidably connected with the locking rod push block 34, one end of the locking rod push block 34 is in sliding contact with the clamping block 35, the locking rod push block 34 is connected to the threaded rod 341, and the threaded rod 341 is threadedly connected to the threaded hole 331 opened in the pushing block 33. The threaded hole 331 in the pushing block 33 rotates to cause the threaded rod 341 to move forward, and the forward-moving threaded rod 341 will drive the locking rod push block 34 to move and squeeze the clamping block 35, causing the clamping block 35 to be squeezed into the clamping groove opened in the drill rod 2.

[0030] Both ends of the clamping block 35 are provided with inclined surfaces, which are engaged with the engaging grooves provided on the drill rod 2. The inclined surfaces can facilitate the installation of the drill rod 2 and the accurate engagement position of the engaging grooves.

[0031] The cross-sections of the transmission head 31 , the control block 32 , and the docking block 36 are all hexagonal, and one end of the docking block 36 and one end of the control block 32 are in contact with the locking frame 4 .

[0032] The end of the locking frame 4 away from the drilling rig fixed value motor 1 is connected to the push rod 41, and the push rod 41 contacts one end of the docking block 36. The top of the locking frame 4 is connected to the limit block 42. The limit block 42 has a sliding cavity. The sliding cavity is slidably connected to the clamping block 43. A reset elastic member 44 is symmetrically arranged at the bottom of the clamping block 43. The reset elastic member 44 is connected to the bottom of the sliding cavity. The clamping block 43 contacts one side of the control block 32. The clamping block 43 and the control block 32 have an anti-rotation groove 322 at the bottom for sliding clamping.

[0033] Working principle: put the drill rod 2 into the mounting hole opened by the docking block 36, press the clamping block 43, and then slide the control block 32 to make the anti-rotation groove 321 at the bottom of the clamping block 43 engage with the clamping block 43, and then the drilling rig fixed value motor 1 rotates to cause the transmission head 31 and the push block 33 to rotate, and the threaded hole 331 in the push block 33 rotates to cause the threaded rod 341 connected with the thread to move forward, and the forward-moving threaded rod 341 will drive the lock rod push block 34 to move and squeeze the clamping block 35, so that the clamping block 3 5 is squeezed into the clamping groove of the drill rod 2, and then the rotation groove of the control block 32 is separated from the clamping block 43, and the clamping block 43 is popped out by the rebound force of the reset elastic member 44, so that the control block 32 is limited but can rotate, thereby completing the connection of the drill rod 2 (the drilling rig fixed value motor 1 is controlled by the opening and closing of the clamping block 35 according to the threaded hole 331 and the threaded rod 341 to set the number of rotations, and the drilling rig fixed value motor 1 can also transmit the power of the drill rod 2 to perform drilling operations).

[0034] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A chuck assembly device for a tunnel drill for geological mining, comprising a drill setting motor (1), characterized in that: The output end of the drilling rig fixed value motor (1) is connected to the chuck assembly (3), the chuck assembly (3) is connected to the drill rod (2), the drilling rig fixed value motor (1) is connected to the locking frame (4), and the locking frame (4) is in contact with the chuck assembly (3).

2. A chuck assembly device for a tunnel drill for geological mining according to claim 1, characterized in that: The chuck assembly (3) comprises a transmission head (31), one end of the transmission head (31) is connected to the drilling rig fixed value motor (1), and the other end of the transmission head (31) is connected to the propulsion block (33). A gap is formed between the propulsion block (33) and the transmission head (31), and the gap is slidably connected to the control block (32). The inner ring of the control block (32) is slidably connected to the outer ring of the docking block (36). The docking block (36) is provided with a mounting hole, and the inner wall of the mounting hole is provided with a plurality of slide grooves equidistantly in an annular shape. The slide groove is slidably connected to the clamping block (35), and the clamping block (35) is clamped with a clamping groove provided on the drill rod (2).

3. A chuck assembly device for a tunnel drill for geological mining according to claim 2, characterized in that: The inner wall of the docking block (36) is slidably connected to the locking rod push block (34), one end of the locking rod push block (34) is in sliding contact with the clamping block (35), the locking rod push block (34) is connected to the threaded rod (341), and the threaded rod (341) is threadedly connected to the threaded hole (331) provided in the pushing block (33).

4. A chuck assembly device for a tunnel drill for geological mining according to claim 3, characterized in that: Both ends of the clamping block (35) are provided with inclined surfaces, and the inclined surfaces are engaged with the engaging grooves provided on the drill rod (2).

5. The chuck assembly device for a tunnel drill for geological mining according to claim 2, characterized in that: The cross-sections of the transmission head (31), the control block (32) and the docking block (36) are all hexagonal, and one end of the docking block (36) and one end of the control block (32) are both in contact with the locking frame (4).

6. A chuck assembly device for a tunnel drill for geological mining according to claim 5, characterized in that: The end of the locking frame (4) away from the drilling rig fixed value motor (1) is connected to the push rod (41), and the push rod (41) contacts one end of the docking block (36). The top of the locking frame (4) is connected to the limit block (42), and the limit block (42) is provided with a sliding cavity, and the sliding cavity is slidably connected to the clamping block (43). A reset elastic member (44) is symmetrically arranged at the bottom of the clamping block (43), and the reset elastic member (44) is connected to the bottom of the sliding cavity. The clamping block (43) contacts one side of the control block (32), and the clamping block (43) and the control block (32) are provided with an anti-rotation groove (322) at the bottom for sliding clamping.

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