A drill rod clamping device for a fully hydraulic tunnel drilling rig

Abstract

The present invention relates to the field of full hydraulic tunnel drilling rigs, and in particular to a drill rod clamping device for full hydraulic tunnel drilling rigs. The technical problem to be solved by the present invention is that the angle and height of the drill rod clamping device cannot be adaptively adjusted according to the actual drilling angle of the drilling rig, thereby failing to ensure the accuracy and stability of the drilling of the drilling rig. It includes a shell, support mechanisms are provided on both sides of the shell, a clamping mechanism is provided on the inner side of the shell, the lower end of the shell is rotatably connected to two rotating shafts, a rotating seat is fixedly connected to the outer side of the rotating shaft, an angle adjustment mechanism is provided on the inner side of the rotating seat, and the angle adjustment mechanism includes a locking handle. By providing the angle adjustment mechanism, the angle of the clamping mechanism can be adjusted, and the angle of the clamping mechanism can be adjusted according to the actual drilling angle of the drilling rig, so that the drilling of the drilling rig is more accurate and stable, and the operation quality is improved.

Description

Technical Field

[0001] The invention relates to the field of full hydraulic tunnel drilling rigs, and in particular to a drill rod clamping device for a full hydraulic tunnel drilling rig. Background Art

[0002] The fully hydraulic tunnel drill is a widely used equipment in geological exploration, coal mining and other fields. Compared with the traditional mechanical tunnel drill, the fully hydraulic tunnel drill has been greatly improved in technology, with greater torque and lighter weight, which enables the drill to operate more flexibly in complex working environments, especially in narrow tunnels such as coal mines. With the advancement of science and technology and the continuous improvement of engineering needs, the fully hydraulic tunnel drill will develop in the direction of being more intelligent, efficient and environmentally friendly.

[0003] The drill rod clamping device plays a vital role in drilling engineering. It is mainly used to fix and clamp the drill rod to ensure the safety and efficiency of drilling operations. In the prior art, the drill rod clamping device is fixed together with the fully hydraulic tunnel drilling rig, and the angle and height of the drill rod clamping device cannot be adaptively adjusted according to the actual drilling angle of the drilling rig, thereby failing to ensure the accuracy and stability of the drilling rig; after the drill rod slips are used for a certain frequency, the inner side is worn out, causing the clamping failure, and needs to be replaced, but the replacement steps are complicated and inefficient. Summary of the invention

[0004] In order to overcome the disadvantages that the drill rod clamping device is fixed together with the full hydraulic tunnel drilling rig, the angle and height of the drill rod clamping device cannot be adaptively adjusted according to the actual drilling angle of the drilling rig, thereby failing to ensure the accuracy and stability of the drilling rig; after the drill rod slips are used for a certain frequency, the inner side wears out and causes clamping failure, and needs to be replaced, but the replacement steps are complicated and the efficiency is low. The technical problem to be solved by the present invention is to provide a drill rod clamping device for a full hydraulic tunnel drilling rig.

[0005] In order to solve the above technical problems, the present invention provides a drill rod clamping device for a fully hydraulic tunnel drilling rig, comprising a shell, support mechanisms are arranged on both sides of the shell, a clamping mechanism is arranged on the inner side of the shell, the lower end of the shell is rotatably connected to two rotating shafts, the outer side of the rotating shaft is fixedly connected to a rotating seat, the inner side of the rotating seat is provided with an angle adjustment mechanism, the angle adjustment mechanism includes a locking handle, the locking handle is slidably connected to the rotating seat, the locking handle passes through the rotating seat and extends to the end portion inside the rotating seat and is fixedly connected to a trigger block, the locking handle A locking spring is fixedly connected to the outside of the hand and located between the trigger block and the rotating seat, an inclined surface is provided on the upper end surface of the trigger block, a T-shaped block is fixedly connected to the inclined surface, a driven block is slidably connected to the outside of the T-shaped block, two side surfaces of the driven block are rotatably connected to two push rods via a rotating shaft, the other end of the push rod is rotatably connected to a locking rod via a rotating shaft, one end of the locking rod is rotatably connected to a fixed seat via a rotating shaft, the fixed seat is fixedly connected to the rotating seat, a torsion spring is fixedly connected to the outside of the rotating shaft and located between the locking rod and the fixed seat, and the other end of the locking rod is fixedly connected to a square block.

[0006] Preferably, the angle adjustment mechanism also includes an adjusting shaft, the adjusting shaft is rotatably connected to the rotating shaft, a ratchet is fixedly connected to the outer side of the adjusting shaft, the arc-shaped outer side surface of the ratchet is provided with a sliding groove that matches the square block at the end of the locking rod, the end of the adjusting shaft is also fixedly connected to an adjusting gear, an adjusting gear ring is provided on the outer side of the adjusting gear, the adjusting gear is meshed with the adjusting gear ring, the adjusting gear ring is fixedly connected to the lower surface of the outer shell, the adjusting shaft passes through the rotating shaft and extends to the end of the outer side of the rotating shaft and is fixedly connected to an adjusting handle.

[0007] Preferably, the clamping mechanism includes a clamping shaft, the clamping shaft is fixedly connected to the shell, the outer side of the clamping shaft is rotatably connected to a clamping arm, one end of the clamping arm is rotatably connected to two pulling links via a rotating shaft, the other ends of the two pulling links are rotatably connected to a triggering link via a rotating shaft, and the opposite sides of the two triggering links are fixedly connected to a hydraulic telescopic rod.

[0008] Preferably, the clamping mechanism also includes a clamping block, which is fixedly connected to the clamping arm, an arc surface is provided on the inner side of the clamping block, a T-shaped groove is provided in the arc surface, a sliding block is slidably connected in the T-shaped groove, and a sliding seat is fixedly connected to the inner side of the outer shell, an arc surface is provided on the inner side of the sliding seat, a T-shaped groove is provided in the arc surface, and two sliding blocks are slidably connected in the T-shaped groove.

[0009] Preferably, the clamping mechanism also includes an unlocking shaft, which is rotatably connected to the sliding block, one end of the unlocking shaft is fixedly connected to an unlocking gear, one side of the unlocking gear is provided with an unlocking rack, the unlocking gear is meshingly connected to the unlocking rack, a square hole is provided on the side of the sliding block, the unlocking rack is slidably connected in the square hole, a return spring is fixedly connected between the unlocking rack and the sliding block, and the other end of the unlocking shaft is fixedly connected to a locking block, and the locking block is elliptical.

[0010] Preferably, one side of the sliding block is an arc surface, and a cava is slidably connected to the arc surface. An elliptical hole is provided on the outer arc surface of the cava, and an annular groove is provided on the inner side of the elliptical hole. A compression spring is provided in the annular groove, and one end of the compression spring is fixedly connected to the cava.

[0011] Preferably, the support mechanism includes a connecting seat, the connecting seat is fixedly connected to the outer shell, the connecting seat is rotatably connected to the support shaft via a rotating shaft, a plurality of annular grooves are provided on the outer side of the support shaft, the other end of the support shaft is slidably connected to a sliding sleeve, the other end of the sliding sleeve is slidably connected to another support shaft, a spring is fixedly connected between the two support shafts, and one end of the other support shaft is rotatably connected to the support seat via a rotating shaft.

[0012] Preferably, the support mechanism also includes an upper gate plate, both ends of the sliding sleeve are fixedly connected with a rotating shaft, the upper gate plate is rotatably connected to the rotating shaft, the outer side of the rotating shaft is also rotatably connected to the lower gate plate, the inner sides of the upper gate plate and the lower gate plate are fixedly connected with teeth matching the annular groove on the outer side of the support shaft, the outer sides of the upper gate plate and the lower gate plate are fixedly connected with limiting blocks, the sides of the two limiting blocks are provided with circular through holes, and fixing pins are slidably connected in the circular through holes.

[0013] Preferably, a second hydraulic telescopic rod is fixedly connected to the lower surface of the rotating seat, and the second hydraulic telescopic rod is three-stage telescopic.

[0014] Preferably, a lifting seat is fixedly connected to the upper surface of the shell, and the other end of the second hydraulic telescopic rod is fixedly connected to the base.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] By setting the angle adjustment mechanism, the angle of the clamping mechanism can be adjusted. The angle of the clamping mechanism can be adjusted according to the actual drilling angle of the drill rig, making the drilling of the drill rig more accurate and stable, and improving the work quality; by setting the unlocking rack, unlocking rack, and locking block, the drill rod slips can be quickly replaced, the work steps can be optimized, the work intensity of workers can be reduced, and the work efficiency can be improved;

[0017] By setting up a clamping mechanism, the drill rod can be quickly fixed, reducing the labor intensity of workers and improving work efficiency; by setting a T-shaped slot on one side of the sliding seat and the clamping block, the sliding block can be adaptively displaced to adapt to drill rods of different sizes;

[0018] By setting up a second hydraulic telescopic rod, the clamping device can be lifted to a specified height to meet drilling needs, making drilling more convenient and efficient. By setting up a supporting mechanism, the clamping device can be supported when it is tilted at a certain angle, making drilling more stable and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the angle adjustment mechanism structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the ratchet structure of the present invention;

[0023] Figure 5 It is a cross-sectional view of the driven block and the trigger block of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the clamping mechanism of the present invention;

[0025] Figure 7 It is a cross-sectional view of the clamping block and the sliding seat of the present invention;

[0026] Figure 8 It is a cross-sectional view of the sliding block and slips of the present invention;

[0027] Fig. 9 It is a schematic diagram of the supporting mechanism structure of the present invention;

[0028] Fig.10 It is a schematic diagram of the upper gate and the lower gate of the present invention.

[0029] The markings in the attached drawings are: 1-drill rod, 2-lifting seat, 3-housing, 301-rotating shaft, 4-support mechanism, 401-connecting seat, 402-support shaft, 403-fixing pin, 404-sliding sleeve, 405-support seat, 406-upper gate, 407-lower gate, 408-limiting block, 5-rotating seat, 6-base, 7-clamping mechanism, 701-hydraulic telescopic rod 1, 702-trigger connecting rod, 703-pulling connecting rod, 704-clamping arm, 705-clamping shaft, 706-clamping block, 707-sliding block, 708- Cava, 709-sliding seat, 710-unlocking rack, 711-unlocking gear, 712-unlocking shaft, 713-reset spring, 714-locking block, 715-compression spring, 8-angle adjustment mechanism, 801-adjusting handle, 802-adjusting shaft, 803-ratchet, 804-adjusting gear, 805-adjusting gear ring, 806-locking rod, 807-torsion spring, 808-fixed seat, 809-push rod, 810-driven block, 811-touch block, 812-locking spring, 813-locking handle, 9-hydraulic telescopic rod two. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] Embodiment 1: A drill rod clamping device for a fully hydraulic tunnel drilling rig, such as Figure 1-Figure 5As shown, it includes a shell 3, and support mechanisms 4 are arranged on both sides of the shell 3. The support mechanisms 4 provide support when the clamping device is tilted, so that drilling is more stable and accurate. A clamping mechanism 7 is arranged on the inner side of the shell 3. The clamping mechanism 7 quickly clamps and fixes the drill rod to improve the working efficiency. The lower end of the shell 3 is rotatably connected to two rotating shafts 301, and a rotating seat 5 is fixedly connected to the outer side of the rotating shaft 301. An angle adjustment mechanism 8 is arranged on the inner side of the rotating seat 5. The clamping device can be tilted at a certain angle through the angle adjustment mechanism 8, so that drilling is more accurate and stable. The angle adjustment mechanism 8 includes a locking handle 813, and the locking handle 813 is slidably connected to the rotating seat 5. The locking handle 813 passes through the rotating seat 5 and extends to the end of the rotating seat 5. The end is fixedly connected to the inside of the rotating seat 5. The trigger block 811 is trapezoidal. A locking spring 812 is fixedly connected to the outside of the locking handle 813 and located between the trigger block 811 and the rotating seat 5. A slope is provided on the upper end surface of the trigger block 811, and a T-block is fixedly connected to the slope. A driven block 810 is slidably connected to the outside of the T-block. A T-slot is provided on one end surface of the driven block 810 for sliding with the T-block. The driven block 810 is trapezoidal. Push rods 809 are rotatably connected to the two side surfaces of the driven block 810 via a rotating shaft. The other end of the push rod 809 is rotatably connected to a locking rod 806 via a rotating shaft. One end of the locking rod 806 is rotatably connected to a fixed seat 808 via a rotating shaft. The fixed seat 808 is fixedly connected to the rotating seat 5. A torsion spring 807 is fixedly connected to the outside of the rotating shaft and located between the locking rod 806 and the fixed seat 808. The other end of the locking rod 806 is fixedly connected to a square block.

[0032] like Figure 1-Figure 4 As shown, the angle adjustment mechanism 8 also includes an adjusting shaft 802, which is rotatably connected to the rotating shaft 301, and a ratchet 803 is fixedly connected to the outer side of the adjusting shaft 802. The arc-shaped outer side surface of the ratchet 803 is provided with a sliding groove that matches the square block at the end of the locking rod 806. The end of the adjusting shaft 802 is also fixedly connected to an adjusting gear 804, and an adjusting gear ring 805 is arranged on the outer side of the adjusting gear 804. The adjusting gear ring 805 is semicircular, and the adjusting gear 804 is meshed and connected with the adjusting gear ring 805. The adjusting gear ring 805 is fixedly connected to the lower surface of the shell 3, and the adjusting shaft 802 passes through one side of the rotating shaft 301 and extends to the end of the outer side of the rotating shaft 301 and is fixedly connected to the adjusting handle 801.

[0033] like Figure 6 , Figure 7As shown, the clamping mechanism 7 includes a clamping shaft 705, the clamping shaft 705 is fixedly connected to the housing 3, the outer side of the clamping shaft 705 is rotatably connected to a clamping arm 704, the clamping shaft 705 and the clamping arm 704 are symmetrically arranged, the clamping arm 704 is arc-shaped, one end of the clamping arm 704 is rotatably connected to two pulling links 703 through a rotating shaft, the other ends of the two pulling links 703 are rotatably connected to a trigger link 702 through a rotating shaft, and the two trigger links 702 A hydraulic telescopic rod 701 is fixedly connected to the opposite side thereof, a clamping block 706 is fixedly connected to the other end of the clamping arm 704, a circular arc surface is provided on the inner side of the clamping block 706, a T-shaped groove is provided in the circular arc surface, a sliding block 707 is slidably connected in the T-shaped groove, a sliding seat 709 is fixedly connected to the inner side of the outer shell 3, a circular arc surface is provided on the inner side of the sliding seat 709, a T-shaped groove is provided in the circular arc surface, two sliding blocks 707 are slidably connected in the T-shaped groove.

[0034] like Figure 8 As shown, the clamping mechanism 7 also includes an unlocking shaft 712, which is rotatably connected to the sliding block 707, one end of the unlocking shaft 712 is fixedly connected to an unlocking gear 711, one side of the unlocking gear 711 is provided with an unlocking rack 710, the unlocking gear 711 is meshed and connected with the unlocking rack 710, a square hole is provided on the side of the sliding block 707, the unlocking rack 710 is slidably connected in the square hole, a reset spring 713 is fixedly connected between the unlocking rack 710 and the sliding block 707, and the unlocking shaft The other end of 712 is fixedly connected to a locking block 714, which is elliptical. One side of the sliding block 707 is an arc surface, and a cava 708 is slidably connected to the arc surface. An elliptical hole is provided on the outer arc surface of the cava 708, and an annular groove is provided on the inner side of the elliptical hole. A compression spring 715 is provided in the annular groove, and one end of the compression spring 715 is fixedly connected to the cava 708, and the locking block 714 is rotatably connected to the elliptical hole provided on the outer arc surface of the cava 708.

[0035] like Figure 9-10As shown, the support mechanism 4 includes a connecting seat 401, which is fixedly connected to the housing 3, and the connecting seat 401 is rotatably connected to a support shaft 402 through a rotating shaft. A plurality of annular grooves are provided on the outer side of the support shaft 402, and a sliding sleeve 404 is slidably connected to the other end of the support shaft 402. A circular through hole is provided inside the sliding sleeve 404, and another support shaft 402 is slidably connected to the other end of the sliding sleeve 404. A spring is fixedly connected between the two support shafts 402, and one end of the other support shaft 402 is rotatably connected to a support seat 405 through a rotating shaft, and a plurality of The teeth are used to increase the friction force to limit the sliding of the support seat 405. The two ends of the sliding sleeve 404 are fixedly connected with a rotating shaft. The upper gate plate 406 is rotatably connected to the rotating shaft. The outer side of the rotating shaft is also rotatably connected to the lower gate plate 407. The inner sides of the upper gate plate 406 and the lower gate plate 407 are fixedly connected with teeth that match the annular groove on the outer side of the support shaft 402. The outer sides of the upper gate plate 406 and the lower gate plate 407 are fixedly connected with limit blocks 408. Circular through holes are opened on the sides of the two limit blocks 408. A fixing pin 403 is slidably connected in the circular through hole. The two limit blocks 408 can be fixed and limited by the fixing pin 403.

[0036] like Figure 1 As shown, the lower surface of the rotating seat 5 is fixedly connected with a hydraulic telescopic rod 29, which can lift the clamping device to a specified height. The hydraulic telescopic rod 29 is three-stage telescopic. The upper surface of the shell 3 is fixedly connected with a lifting seat 2. When the clamping device needs to be moved, the clamping device can be moved to a specified position through the lifting seat 2. The other end of the hydraulic telescopic rod 29 is fixedly connected with a base 6. The base 6 increases the contact area between the clamping device and the ground, lowers the center of gravity of the clamping device, and prevents the clamping device from tipping over.

[0037] Embodiment 2, working principle: when the clamping device is used, start the hydraulic telescopic rod 2 9 to lift the clamping device to a specified height, first unlock the support mechanism 4, then use the angle adjustment mechanism 8 to adjust the clamping device to a specified angle, and then adjust the support mechanism 4 to stabilize and then lock it, pass the drill rod 1 through the clamping mechanism 7, start the drilling rig, when the drilling rig drives the drill rod 1 to drill to a certain depth, the clamping mechanism 7 is started to clamp and fix the drill rod 1, the drilling rig releases the drill rod 1 and retreats to connect another drill rod 1, after the two drill rods 1 are connected, the clamping mechanism 7 releases the drill rod 1, and the drilling rig continues to drive the drill rod 1 for drilling, when the cava 708 is used a certain frequency, the cava 708 is replaced in time to prevent the clamping mechanism 7 from failing.

[0038] When the support mechanism 4 is unlocked, the fixing pin 403 is pulled out from the limit block 408, pushing the upper gate plate 406 and the lower gate plate 407 to flip to both sides, and the upper gate plate 406 and the lower gate plate 407 are out of contact with the support shaft 402. At this time, the angle of the clamping device can be adjusted.

[0039] When the angle adjustment mechanism 8 is used to adjust the clamping device to a specified angle, the locking handle 813 is pulled to slide outward, and the sliding of the locking handle 813 to the outward pulls the trigger block 811 to slide outward, and the sliding of the trigger block 811 to the outward compresses the locking spring 812. Under the action of the inclined surface at the end of the trigger block 811, the trigger block 811 slides outward to push the driven block 810 to move upward, and the upward movement of the driven block 810 drives the push rod 809 to move upward, and the upward movement of the push rod 809 drives the locking rod 806 to rotate to both sides with the fixed seat 808 as the center, and the square block at the end of the locking rod 806 is out of contact with the ratchet 803, and the locking rod 806 rotates to both sides with the fixed seat 808 as the center to drive the torsion spring 807 to start accumulating force. At this time, the adjusting handle 801 is rotated, and the rotation of the adjusting handle 801 drives the adjusting shaft 802 to rotate, and the rotation of the adjusting shaft 802 drives the adjusting gear 804 to rotate, and the rotation of the adjusting gear 804 drives the adjusting gear ring 805 deflects to one side, and the adjustment gear ring 805 deflects to one side, driving the housing 3 to deflect to one side. The housing 3 deflects to one side, driving the clamping mechanism 7 to deflect to one side. After adjusting to the specified angle, the locking handle 813 is pushed inward, and the locking spring 812 releases the pressure to push the trigger block 811 to slide inward. Under the action of the T-shaped block, the trigger block 811 slides inward and pulls the driven block 810 to move downward. The driven block 810 moves downward and pulls the push rod 809 to move downward. The push rod 809 moves downward and pulls the locking rod 806 to rotate inward with the fixed seat 808 as the center. The torsion spring 807 releases the pressure and pushes the locking rod 806 to reset. The square block at the end of the locking rod 806 contacts the ratchet 803. At this time, the angle adjustment mechanism 8 is locked. After the angle adjustment mechanism 8 is locked, the displacement of the clamping mechanism 7 during use can be effectively prevented, thereby further ensuring the safety of the drill rod of the full hydraulic tunnel drilling rig during use.

[0040] When the support mechanism 4 is locked, the shell 3 is tilted to a certain angle, the support seat 405 contacts the ground, the two support shafts 402 move toward each other to compress the spring, the upper gate plate 406 and the lower gate plate 407 on both sides are flipped upward, the upper gate plate 406 and the lower gate plate 407 contact the support column, and the fixing pin 403 is inserted into the limit block 408. At this time, the support mechanism 4 is locked.

[0041] When the clamping mechanism 7 clamps and fixes the drill pipe 1, the hydraulic telescopic rod 701 starts to retract inwardly. The inward contraction of the hydraulic telescopic rod 701 drives the trigger links 702 on both sides to move toward each other. The two trigger links 702 move toward each other and push the pulling link 703 to slide outward. The pulling link 703 slides outward and pushes one end of the clamping arm 704 to slide outward. Under the action of the middle clamping shaft 705, one end of the clamping arm 704 slides outward and drives the other end of the clamping arm 704 to slide inward. The other end of the clamping arm 704 slides inward and pushes the clamping block 706 to slide inward. The clamping block 706 slides inward and pushes the sliding block 707 to slide inward. The sliding block 707 slides inward and pushes the slip 708 to slide inward. The slip 708 slides inward and contacts the drill pipe 1. At this time, the clamping mechanism 7 clamps and fixes the drill pipe 1.

[0042] When the clamping mechanism 7 unlocks the drill pipe 1, the hydraulic telescopic rod 701 starts to extend outward. The outward extension of the hydraulic telescopic rod 701 drives the trigger links 702 on both sides to move in the opposite direction. The two trigger links 702 move in the opposite direction and drive the pulling link 703 to slide inward. The pulling link 703 slides inward and pushes one end of the clamping arm 704 to slide inward. Under the action of the middle clamping shaft 705, one end of the clamping arm 704 slides inward and drives the other end of the clamping arm 704 to slide outward. The other end of the clamping arm 704 slides outward and pulls the clamping block 706 to slide outward. The clamping block 706 slides outward and pulls the sliding block 707 to slide outward. The sliding block 707 slides outward and pulls the slip 708 to slide outward. The slip 708 slides outward and breaks contact with the drill pipe 1. At this time, the clamping mechanism 7 unlocks the drill pipe 1 and the drilling operation can continue.

[0043] When the slip 708 is replaced, the unlocking rack 710 is pressed to slide into the sliding block 707, and the unlocking rack 710 slides into the sliding block 707 to compress the return spring 713, and the unlocking rack 710 is meshed with the unlocking gear 711, and the unlocking rack 710 drives the unlocking gear 711 to rotate, and the unlocking gear 711 rotates to drive the unlocking shaft 712 to rotate, and the unlocking shaft 712 rotates to drive the locking block 714 to rotate. When the locking block 714 rotates 90 degrees, the compression spring 715 releases the pressure to push the locking block 714 out of the slip 708. At this time, the slip 708 is removed and replaced with a new slip 708. The arc-shaped outer surface of the slip 708 is The elliptical hole on the side is aligned with the locking block 714, and the locking block 714 enters the slip 708 to squeeze the compression spring 715, loosen the unlocking rack 710, and the return spring 713 releases the pressure to push the unlocking rack 710 to slide outward from the sliding block 707, and the unlocking rack 710 is meshed and connected with the unlocking gear 711, and the unlocking rack 710 drives the unlocking gear 711 to rotate, and the rotation of the unlocking gear 711 drives the unlocking shaft 712 to rotate, and the rotation of the unlocking shaft 712 drives the locking block 714 to rotate. When the locking block 714 rotates 90 degrees, the locking block 714 connects the slip 708 with the sliding block 707. At this time, the replacement of the slip 708 is completed.

[0044] The above embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A drill rod clamping device for a fully hydraulic tunnel drilling rig, characterized in that: The invention comprises a housing (3), support mechanisms (4) are arranged on both sides of the housing (3), a clamping mechanism (7) is arranged on the inner side of the housing (3), the lower end of the housing (3) is rotatably connected to two rotating shafts (301), the outer side of the rotating shaft (301) is fixedly connected to a rotating seat (5), the inner side of the rotating seat (5) is provided with an angle adjustment mechanism (8), the angle adjustment mechanism (8) comprises a locking handle (813), the locking handle (813) is slidably connected to the rotating seat (5), the locking handle (813) passes through the rotating seat (5) and is fixedly connected to an end portion of the rotating seat (5) inside the rotating seat (5), the outer side of the locking handle (813) is located between the trigger block (811) and the rotating seat (5), and the locking handle (813) is fixedly connected to an end portion of the rotating seat (5) and a trigger block (811) is fixedly connected to the end portion of the rotating seat (5). A locking spring (812) is fixedly connected between the moving seat (5); an inclined surface is provided on the upper end surface of the actuating block (811); a T-shaped block is fixedly connected to the inclined surface; a driven block (810) is slidably connected to the outer side of the T-shaped block; two side surfaces of the driven block (810) are rotatably connected to push rods (809) via a rotating shaft; the other end of the push rod (809) is rotatably connected to a locking rod (806) via a rotating shaft; one end of the locking rod (806) is rotatably connected to a fixed seat (808) via a rotating shaft; the fixed seat (808) is fixedly connected to the rotating seat (5); a torsion spring (807) is fixedly connected to the outer side of the rotating shaft and located between the locking rod (806) and the fixed seat (808); and the other end of the locking rod (806) is fixedly connected to a square block; The angle adjustment mechanism (8) further comprises an adjustment shaft (802), wherein the adjustment shaft (802) is rotationally connected to the rotating shaft (301), a ratchet (803) is fixedly connected to the outer side of the adjustment shaft (802), a sliding groove matching the square block at the end of the locking rod (806) is provided on the arc-shaped outer side surface of the ratchet (803), an adjustment gear (804) is fixedly connected to the end of the adjustment shaft (802), an adjustment gear ring (805) is arranged on the outer side of the adjustment gear (804), the adjustment gear (804) is meshedly connected to the adjustment gear ring (805), and the adjustment gear ring (805) is fixedly connected to the lower surface of the housing (3), and the adjustment shaft (802) passes through the rotating shaft (301) and the end portion extending to the outer side of the rotating shaft (301) is fixedly connected to the adjustment handle (801).

2. A drill rod clamping device for a fully hydraulic tunnel drilling rig according to claim 1, characterized in that: The clamping mechanism (7) includes a clamping shaft (705), the clamping shaft (705) is fixedly connected to the housing (3), the outer side of the clamping shaft (705) is rotatably connected to a clamping arm (704), one end of the clamping arm (704) is rotatably connected to two pulling links (703) via a rotating shaft, the other ends of the two pulling links (703) are rotatably connected to a trigger link (702) via a rotating shaft, and the opposite sides of the two trigger links (702) are fixedly connected to a hydraulic telescopic rod (701).

3. A drill rod clamping device for a fully hydraulic tunnel drilling rig according to claim 2, characterized in that: The clamping mechanism (7) further comprises a clamping block (706), wherein the clamping block (706) is fixedly connected to the clamping arm (704), an arc surface is provided on the inner side of the clamping block (706), a T-shaped groove is provided in the arc surface, a sliding block (707) is slidably connected in the T-shaped groove, and a sliding seat (709) is fixedly connected on the inner side of the housing (3), an arc surface is provided on the inner side of the sliding seat (709), a T-shaped groove is provided in the arc surface, and two sliding blocks (707) are slidably connected in the T-shaped groove.

4. A drill rod clamping device for a fully hydraulic tunnel drilling rig according to claim 3, characterized in that: The clamping mechanism (7) further comprises an unlocking shaft (712), wherein the unlocking shaft (712) is rotatably connected to the sliding block (707), one end of the unlocking shaft (712) is fixedly connected to an unlocking gear (711), one side of the unlocking gear (711) is provided with an unlocking rack (710), the unlocking gear (711) is meshingly connected to the unlocking rack (710), a square hole is provided on the side of the sliding block (707), the unlocking rack (710) is slidably connected in the square hole, a return spring (713) is fixedly connected between the unlocking rack (710) and the sliding block (707), and the other end of the unlocking shaft (712) is fixedly connected to a locking block (714), and the locking block (714) is elliptical.

5. A drill rod clamping device for a fully hydraulic tunnel drilling rig according to claim 4, characterized in that: One side of the sliding block (707) is an arc surface, and a slip block (708) is slidably connected to the arc surface. An elliptical hole is provided on the outer arc surface of the slip block (708), and an annular groove is provided on the inner side of the elliptical hole. A clamping spring (715) is provided in the annular groove, and one end of the clamping spring (715) is fixedly connected to the slip block (708).

6. A drill rod clamping device for a fully hydraulic tunnel drilling rig according to claim 1, characterized in that: The support mechanism (4) comprises a connecting seat (401), the connecting seat (401) is fixedly connected to the housing (3), the connecting seat (401) is rotatably connected to a support shaft (402) via a rotating shaft, a plurality of annular grooves are provided on the outer side of the support shaft (402), the other end of the support shaft (402) is slidably connected to a sliding sleeve (404), the other end of the sliding sleeve (404) is slidably connected to another support shaft (402), a spring is fixedly connected between the two support shafts (402), and one end of the other support shaft (402) is rotatably connected to a support seat (405) via a rotating shaft.

7. A drill rod clamping device for a fully hydraulic tunnel drilling rig according to claim 6, characterized in that: The support mechanism (4) also includes an upper gate plate (406), both ends of the sliding sleeve (404) are fixedly connected to a rotating shaft, the upper gate plate (406) is rotatably connected to the rotating shaft, and the outer side of the rotating shaft is also rotatably connected to a lower gate plate (407), the inner sides of the upper gate plate (406) and the lower gate plate (407) are fixedly connected to teeth that match the annular groove on the outer side of the support shaft (402), the arc-shaped outer sides of the upper gate plate (406) and the lower gate plate (407) are fixedly connected to limit blocks (408), and the sides of the two limit blocks (408) are provided with circular through holes, and fixing pins (403) are slidably connected in the circular through holes.

8. The drill rod clamping device for a fully hydraulic tunnel drilling rig according to claim 1, characterized in that: A second hydraulic telescopic rod (9) is fixedly connected to the lower surface of the rotating seat (5), and the second hydraulic telescopic rod (9) is three-stage telescopic.

9. A drill rod clamping device for a fully hydraulic tunnel drilling rig according to claim 8, characterized in that: The upper surface of the housing (3) is fixedly connected to a lifting seat (2), and the other end of the second hydraulic telescopic rod (9) is fixedly connected to a base (6).

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