Guide device of laser guide type top-pulling drilling machine

Abstract

The utility model discloses a laser guiding type top-pulling drilling machine guiding device which comprises a top-pulling drilling machine, a rotating connector assembly is installed on a main shaft of the top-pulling drilling machine, the rotating connector assembly is connected with a transition connector, the transition connector is connected with a double-wall drilling rod, the double-wall drilling rod is connected with a guiding drill bit, and the guiding drill bit is connected with a laser guiding device. A laser target is arranged in the guide drill bit, and a laser transmitter and a synchronous displayer are arranged on the outer side of the top-pulling drilling machine. The guide device can effectively improve the guide precision and the working efficiency of the top-pull drilling machine, can realize laser guide, and can realize water injection cooling at the same time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to top pull drilling machine technical field especially relates to a laser guide formula top pull drilling machine guiding device. BACKGROUND

[0002] With the advance of urbanization, the popularity of municipal pipe network, pipeline open cut construction difficulty increases, brings greater challenge to construction. Find fast and effective construction equipment and construction technology, is the key to solve the problem.

[0003] In underground engineering construction, top pull drilling machine is widely used in non-excavation pipeline laying, geological exploration and other fields. The construction precision of top pull drilling machine is very important to engineering quality and construction safety. The existing top pull drilling machine has the problem of low guiding precision, and it is difficult to accurately control the drilling trajectory, which can easily lead to drilling deviation and affect the accuracy of subsequent pipeline laying or exploration work. At the same time, in the drilling process, the cooling problem is also prominent, and the traditional cooling method has low efficiency, which affects the drilling speed and the service life of the drill bit. Therefore, there is an urgent need for a top pull drilling machine guiding device that can improve the guiding precision and solve the cooling problem. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a laser guide formula top pull drilling machine guiding device to solve the problems of low guiding precision and low cooling efficiency of the existing top pull drilling machine.

[0005] The utility model embodiment adopts the following technical scheme: a laser guide formula top pull drilling machine guiding device, comprising a top pull drilling machine, a rotary joint assembly is installed on the main shaft of the top pull drilling machine, a transition joint is connected with the rotary joint assembly, a double-wall drill rod is connected with the transition joint, a guide drill bit is connected with the double-wall drill rod, a laser target is arranged in the guide drill bit, and a laser emitter and a synchronous display are arranged outside the top pull drilling machine.

[0006] Further, the double-wall drill rod comprises a hollow inner drill rod, a connecting shaft is arranged at one end of the inner drill rod, a connecting seat is arranged at the other end of the inner drill rod, an outer drill rod is fixed between the connecting shaft and the connecting seat, and a water passage is arranged between the inner drill rod and the outer drill rod.

[0007] Further, the connecting seat of the double-wall drill rod is provided with a guide drill bit, the guide drill bit comprises a target seat, the target seat is provided with a laser target, the target seat is connected with a drill bit, and the drill bit is provided with a reversing slope.

[0008] Further, the rotary joint assembly is provided with a water injection hole and a water passage, the transition joint is provided with a water passage, the target seat is provided with a water passage, and the drill bit is provided with a water injection hole.

[0009] Further, the sealing ring one is arranged at the connecting position of the double-wall drill rod and the transition joint, and the sealing ring two is arranged at the connecting position of the double-wall drill rod and the guide drill bit.

[0010] Further, the through hole is arranged in the top pull drill main shaft and the rotary joint assembly, and the laser emitter can focus the light beam at the center of the laser target through the through hole.

[0011] The above at least one technical scheme adopted by the embodiment of the utility model can achieve the following beneficial effects:

[0012] 1. The utility model discloses a high guide precision: through setting up laser target in guide drill bit, setting up laser emitter and synchronous display on the outside of top pull drill, the laser beam that laser emitter sends focuses at the center of laser target through the through hole of top pull drill main shaft and rotary joint assembly, and the position of laser beam on laser target can be observed in real time by synchronous display for construction personnel, thereby accurately judging the deviation of guide drill bit and timely adjusting, which greatly improves the guide precision of top pull drill.

[0013] 2. The utility model discloses good cooling effect: the inner drill rod and outer drill rod of double-wall drill rod are provided with water channel, and rotary joint assembly, transition joint, target seat and drill bit are provided with corresponding water injection hole, water passage, water passage and water jet hole respectively, forming complete water circulation channel. In the drilling process, water enters from the water injection hole of rotary joint assembly, passes through the water passage of each component, and is finally sprayed from the water jet hole of drill bit, thereby cooling the drill bit, effectively improving the cooling efficiency, prolonging the service life of drill bit and accelerating the drilling speed.

[0014] 3. The utility model discloses good sealing property: the connecting position of double-wall drill rod and transition joint is provided with sealing ring one, and the connecting position of double-wall drill rod and guide drill bit is provided with sealing ring two, which effectively prevents the leakage of cooling water in the transmission process, guarantees the normal operation of the water circulation system, and avoids the entry of impurities such as slag into the connecting position, thereby affecting the normal work of the device. DRAWINGS

[0015] The drawings described herein are used to provide further understanding of the utility model and constitute a part of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute improper limitation on the utility model.

[0016] In the drawings:

[0017] Fig. 1 It is the structure schematic view of the utility model;

[0018] Fig. 2 It is the sectional view of the rotary joint assembly of the utility model;

[0019] Fig. 3 It is a sectional view of the double-wall drill rod of the utility model;

[0020] Fig. 4 It is a sectional view of the guide drill bit of the utility model;

[0021] Reference signs

[0022] 1 - top puller; 2 - rotary joint assembly; 21 - water injection hole; 22 - water passing hole; 3 - transition joint; 4 - double-wall drill rod; 41 - inner drill rod; 42 - connecting shaft; 43 - connecting seat; 44 - outer drill rod; 45 - water passing channel; 5 - guide drill bit; 51 - target seat; 511 - water passing hole; 52 - drill bit; 521 - water injection hole; 53 - reversing slope; 6 - laser target; 7 - laser emitter; 8 - synchronous display; 9 - sealing ring one; 10 - sealing ring two. DETAILED DESCRIPTION

[0023] To make the purpose, technical scheme and advantages of the utility model clearer, the following will combine the utility model specific embodiments and corresponding drawings to make a clear and complete description of the utility model technical scheme. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] The following will combine the drawings to specifically describe the technical scheme provided by each embodiment of the utility model.

[0025] Refer to Figs. 1 to 4 As shown in the figure, the utility model embodiment provides a kind of laser guide type top puller guide device, including top puller 1, rotary joint assembly 2 is installed on the main shaft of top puller 1, transition joint 3 is connected with rotary joint assembly 2, double-wall drill rod 4 is connected with transition joint 3, guide drill bit 5 is connected with double-wall drill rod 4, laser target 6 is arranged in guide drill bit 5, laser emitter 7 and synchronous display 8 are arranged on the outside of top puller 1.

[0026] Double-wall drill rod 4 includes hollow inner drill rod 41, connecting shaft 42 is arranged at one end of inner drill rod 41, connecting seat 43 is arranged at the other end, outer drill rod 44 is fixed between connecting shaft 42 and connecting seat 43, water passing channel 45 is arranged between inner drill rod 41 and outer drill rod 44.

[0027] Connecting seat 43 of double-wall drill rod 4 is mounted with guide drill bit 5, guide drill bit 5 includes target seat 51, laser target 6 is arranged in target seat 51, drill bit 52 is connected with target seat 51, drill bit 52 is provided with reversing slope 53.

[0028] The rotating joint assembly 2 is provided with a water injection hole 21 and a water passing hole 22, the transition joint 3 is provided with a water passing hole, the target seat 51 is provided with a water passing hole 511, and the drill bit 52 is provided with a water injection hole 521; a water passing channel 45 is arranged between the inner drill rod 41 and the outer drill rod 44 of the double-wall drill rod 4, and the rotating joint assembly 2, the transition joint 3, the target seat 51 and the drill bit 52 are respectively provided with corresponding water injection holes 21, water passing holes 22, water passing holes 511 and water injection holes 521, so that a complete water circulation channel is formed. During drilling, water enters the rotating joint assembly 2 from the water injection hole 21, passes through the water passing channels of the components, and is finally sprayed out from the water injection hole 521 of the drill bit 52 to cool the drill bit 52, effectively improving the cooling efficiency, prolonging the service life of the drill bit 52 and accelerating the drilling speed.

[0029] The connecting part of the double-wall drill rod 4 and the transition joint 3 is provided with a sealing ring one 9, and the connecting part of the double-wall drill rod 4 and the guide drill bit 5 is provided with a sealing ring two 10; the leakage of cooling water in the transmission process is effectively prevented, the normal operation of the water circulation system is ensured, and the impurities such as slag and soil are also prevented from entering the connecting part to affect the normal work of the device.

[0030] The middle of the main shaft of the top pull drill rig 1 is provided with a through hole, the middle of the rotating joint assembly 2 is provided with a through hole, and the laser emitter 7 can focus the light beam at the center of the laser target 6 through the through hole.

[0031] The working principle of the utility model is as follows:

[0032] When the laser guiding type top pull drill rig guiding device is used, first, the rotating joint assembly 2 is installed on the main shaft of the top pull drill rig 1, then the transition joint 3, the double-wall drill rod 4 and the guide drill bit 5 are connected in sequence, and the sealing ring one 9 and the sealing ring two 10 are also installed at the connecting parts to ensure the sealing performance of the whole device.

[0033] Before starting the top pull drill rig, the laser emitter 7 is turned on, the laser beam passes through the through holes of the main shaft of the top pull drill rig 1 and the rotating joint assembly 2, and is accurately focused at the center of the laser target 6 in the guide drill bit 5. The construction personnel observe the position of the laser beam on the laser target 6 through the synchronous display 8, if the laser beam deviates from the center of the target, it indicates that the guide drill bit 5 deviates, the guide drill bit 5 can be corrected by rotating the guide drill bit 5 of the top pull drill rig 1, so that the reversing slope 53 of the drill bit 52 changes. After the reversing slope 53 is turned to the appropriate direction, the top pull drill rig 1 pushes the drill bit 52 forward, thereby correcting the guide drill bit 5, keeping the laser beam in the center of the target, and making the guide drill bit 5 return to the correct position, thereby ensuring the accuracy of the guide hole drilled by the drill rig.

[0034] In the drilling process, water is injected from the water injection hole 21 of the rotary joint assembly 2, and then sequentially passes through the water passing hole 22 of the rotary joint assembly 2, the water passing hole of the transition joint 3, the water passing channel 45 of the double-wall drill pipe 4, the water passing hole 511 of the target seat 51, and finally is sprayed from the water spraying hole 521 of the drill bit 52; the sprayed water cools the drill bit 52 and scatters the slag generated during drilling. Through the above operation, the guiding precision and working efficiency of the top pull drilling machine can be effectively improved, the guiding device can realize laser guiding, and water injection cooling can be realized.

[0035] The above merely describes the embodiments of the present application and is not intended to limit the present application. The present application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A laser-guided top-pull drilling rig guiding device, comprising a top-pull drilling rig (1), characterized in that, The top-pull drilling rig (1) is equipped with a rotary joint assembly (2) on its main shaft. The rotary joint assembly (2) is connected to a transition joint (3). The transition joint (3) is connected to a double-wall drill rod (4). The double-wall drill rod (4) is connected to a guide drill bit (5). A laser target (6) is installed inside the guide drill bit (5). A laser emitter (7) and a synchronous display (8) are installed on the outside of the top-pull drilling rig (1).

2. The laser-guided top-pull drilling rig guide device according to claim 1, characterized in that: The double-walled drill rod (4) includes a hollow inner drill rod (41), one end of which is provided with a connecting shaft (42) and the other end with a connecting seat (43). An outer drill rod (44) is fixed between the connecting shaft (42) and the connecting seat (43), and a water passage (45) is provided between the inner drill rod (41) and the outer drill rod (44).

3. The laser-guided top-pull drilling rig guide device according to claim 2, characterized in that: The double-walled drill rod (4) has a guide drill bit (5) installed in the connecting seat (43). The guide drill bit (5) includes a target seat (51), a laser target (6) is provided in the target seat (51), and a drill bit (52) is connected to the target seat (51). The drill bit (52) is provided with a reversing inclined surface (53).

4. The laser-guided top-pull drilling rig guide device according to claim 3, characterized in that: The rotary joint assembly (2) is provided with a water injection hole (21) and a water passage hole (22), the transition joint (3) is provided with a water passage hole, the target seat (51) is provided with a water passage hole (511), and the drill bit (52) is provided with a water spray hole (521).

5. The laser-guided top-pull drilling rig guide device according to claim 3, characterized in that: A sealing ring 1 (9) is provided at the connection between the double-wall drill rod (4) and the transition joint (3), and a sealing ring 2 (10) is provided at the connection between the double-wall drill rod (4) and the guide drill bit (5).

6. The laser-guided top-pull drilling rig guide device according to claim 1, characterized in that: The top-pull drilling machine (1) has a through hole in the middle of its main shaft, and the rotary joint assembly (2) has a through hole in the middle. The laser emitter (7) can focus the laser beam on the center of the laser target (6) through the through hole.

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