One-arm two-drill rock drilling boom structure

Abstract

The utility model discloses a rock drilling boom structure with one boom and two drills, which relates to the technical field of rock drilling booms and comprises a cantilever, a plurality of slide bars are fixedly connected to two sides of an inner cavity of the cantilever, and a first drilling machine and a second drilling machine are slidably connected to one end of the inside of the cantilever respectively. Reset assemblies are fixedly connected to the outer walls of one ends of the first drilling machine and the second drilling machine and one side of the inner wall of the cantilever, reset springs are fixedly connected between the corresponding faces of the multiple reset assemblies, a center guide rail is fixedly connected to the bottom end of the inner wall of the cantilever, and a driving assembly is slidably connected to one end of the outer wall of the center guide rail; the two sets of threaded bolts are accurately pushed into the corresponding inserting holes through the threaded sleeve pieces, double-side locking of the first drilling machine and the second drilling machine is achieved, and in the state, the center screw can synchronously drive the first drilling machine and the second drilling machine to stably stretch out towards the outer side along the central axis of the cantilever. The first drilling machine and the second drilling machine can work in parallel.

Description

Technical Field

[0001] This utility model relates to the field of rock drilling boom technology, specifically a one-arm, two-drill rock drilling boom structure. Background Technology

[0002] A rock drilling boom is a large mechanical device used in tunnel excavation, mining and other engineering projects. It mainly consists of a telescopic robotic arm, a hydraulic drive system and drilling tools. It can accurately position and efficiently complete rock drilling operations, replacing traditional manual operation and significantly improving construction efficiency and safety. Its flexible structural design can adapt to complex terrain and support multi-angle and multi-hole operations. It is an indispensable core equipment in modern geotechnical engineering.

[0003] According to the search results, Chinese patent document, publication number CN 219034780 U, relates to the field of tunnel boring and rock drilling technology, specifically to a tunnel rock drilling boom structure, including an installation frame. Guide rods are provided on both sides of the installation frame, and sliding frames are slidably fitted on the guide rods. Mounting brackets for mounting rock drilling devices are fixed on the sliding frames. A lead screw is rotatably installed inside the installation frame. The drive end of the lead screw is connected to a first drive device. A threaded slider is threadedly fitted on the lead screw, and the threaded slider is guided and limited by the inner side of the installation frame. The lead screw is driven to reciprocate along it by rotation. A conversion component for switching the drive of the sliding frames on both sides is installed on the threaded slider.

[0004] In practical applications, the aforementioned device employs a distributed structure of upper and lower drill rod rigs and anchor bolt rigs. Since the conversion components and drive blocks can only fix one device at a time, this structural limitation prevents the simultaneous operation of both the drill rod rig and anchor bolt rig. Different process requirements must be met by repeatedly switching components. In actual operation, the device requires frequent adjustments to the drive block position and re-fixing of the equipment, forcing drilling and support processes to be performed in separate steps. Furthermore, the single-device fixing mode prevents effective coordination between drill rod and anchor bolt operations, hindering the realization of potential synchronous construction efficiency and further restricting the project's progress under complex geological conditions. Therefore, we provide a one-arm, two-drill rock drilling boom structure. Utility Model Content

[0005] The purpose of this utility model is to make up for the shortcomings of the existing technology and provide a one-arm, two-drill rock drilling boom structure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a one-arm, two-drill rock drilling boom structure, including a cantilever, with multiple sliding rods fixedly connected to both sides of the inner cavity of the cantilever, and a first drilling rig and a second drilling rig slidably connected to one end of the cantilever, with reset components fixedly connected to the outer wall of one end of the first drilling rig and the second drilling rig and one side of the inner wall of the cantilever, and reset springs fixedly connected between the corresponding surfaces of the multiple reset components, a central guide rail fixedly connected to the bottom end of the inner wall of the cantilever, and a drive component slidably connected to one end of the outer wall of the central guide rail, and a working motor fixedly connected to the inner cavity of the cantilever, with a central screw fixedly connected to the output end of the working motor;

[0007] Multiple hollow shaft motors are fixedly connected to both sides of the drive assembly, and threaded fittings are fixedly connected to the inner wall connection ends of the multiple hollow shaft motors. Multiple slide rails are fixedly connected to both sides of the inner wall of the drive assembly, and threaded pins are slidably connected to one end of the outer wall of the slide rails. The outer walls of one end of the multiple threaded pins extend into the interior of the first drilling rig and the second drilling rig, respectively.

[0008] As described above, the corresponding contact end of the reset component is covered with rubber material, the outer walls of both ends of the reset spring are simultaneously fixedly connected to the outer walls of multiple reset components, and the reset spring is installed outside the first drilling rig and the second drilling rig and inside the cantilever through multiple reset components.

[0009] As described above, the central guide rail is located at the bottom of the drive assembly, and the outer wall of the central guide rail is slidably connected to the bottom of the drive assembly.

[0010] As described above, the central screw is coaxially arranged along the central axis of the drive assembly, and the outer wall of the central screw is connected to the internal central thread of the drive assembly through a thread. The central screw is located at the top center of the central guide rail.

[0011] As mentioned above, both the first and second drilling rigs have multiple insertion holes on both sides of their outer walls, and the insertion holes correspond to the ends of the threaded pins.

[0012] As mentioned above, the end of the threaded pin near the first and second drilling machines has a smooth surface, and the outer wall of one end of the threaded pin is slidably connected to the inner wall of the insertion hole.

[0013] As described above, the outer wall center of the threaded pin passes through the inner center of the threaded assembly, and the outer wall of the threaded pin is threadedly connected to the inner wall of the threaded assembly.

[0014] Compared with existing technologies, this single-arm dual-drilling rock drilling boom structure has the following advantages:

[0015] I. When the first and second drilling rigs need to work together, this utility model can simultaneously start multiple hollow shaft motors inside the drive assembly. By using the threaded fitting, two sets of threaded pins are precisely pushed into the corresponding insertion holes to achieve double-sided locking of the first and second drilling rigs. In this state, the central screw can simultaneously drive the first and second drilling rigs to extend smoothly outward along the central axis of the cantilever, enabling the first and second drilling rigs to work in parallel. This eliminates the operation of repeatedly switching equipment in traditional structures, allowing drilling and anchor bolt support to be carried out simultaneously, which can shorten the working cycle of drilling and anchor bolt support to a certain extent.

[0016] II. This utility model can be used to select simultaneous operation or independent operation of the first and second drilling rigs according to actual needs. When simultaneous operation is not required, the threaded pin on one side can be retracted into the drive assembly, and the locked first or second drilling rig will automatically retract to the initial position of the cantilever under the action of the return spring. This allows the device to retain the high efficiency of dual-machine collaboration and can be quickly converted to single-machine operation or alternating operation.

[0017] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a side-section three-dimensional structural diagram of the cantilever of this utility model;

[0020] Figure 3 This is a top view of a partial three-dimensional structure of the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram showing the partial positional relationship between the first drilling rig and the insertion hole of this utility model;

[0022] Figure 5 This is a partially cross-sectional three-dimensional structural diagram of the drive component of this utility model;

[0023] Figure 6 This is a partially disassembled three-dimensional structural diagram of the central control shaft motor and threaded assembly of this utility model.

[0024] In the diagram: 1. Cantilever; 2. Slide rod; 201. First drilling rig; 202. Second drilling rig; 203. Reset assembly; 204. Reset spring; 3. Center guide rail; 301. Drive assembly; 302. Working motor; 303. Center screw; 304. Hollow shaft motor; 305. Threaded fitting; 306. Slide rail; 307. Threaded pin; 308. Insertion hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1-6 As shown, this utility model provides a technical solution for a one-arm two-drill rock drilling boom structure: a one-arm two-drill rock drilling boom structure includes a cantilever 1, multiple sliding rods 2 are fixedly connected to both sides of the inner cavity of the cantilever 1, and a first drilling rig 201 and a second drilling rig 202 are slidably connected to one end of the inner cavity of the cantilever 1, a reset component 203 is fixedly connected to one side of the outer wall of one end of the first drilling rig 201 and the second drilling rig 202 and one side of the inner wall of the cantilever 1, and a reset spring 204 is fixedly connected between the corresponding surfaces of the multiple reset components 203, a central guide rail 3 is fixedly connected to the bottom end of the inner wall of the cantilever 1, and a drive component 301 is slidably connected to one end of the outer wall of the central guide rail 3, a working motor 302 is fixedly connected to the inner cavity of the cantilever 1, and a central screw 303 is fixedly connected to the output end of the working motor 302;

[0027] Multiple hollow shaft motors 304 are fixedly connected to both sides of the drive assembly 301, and threaded fittings 305 are fixedly connected to the inner wall connection ends of the multiple hollow shaft motors 304. Multiple slide rails 306 are fixedly connected to both sides of the inner wall of the drive assembly 301, and threaded pins 307 are slidably connected to one end of the outer wall of the slide rails 306. The outer walls of one end of the multiple threaded pins 307 extend into the interior of the first drilling rig 201 and the second drilling rig 202, respectively.

[0028] Multiple hollow shaft motors 304 inside the synchronous start drive assembly 301 are activated. The threaded fitting 305 is used to precisely push two sets of threaded pins 307 into the corresponding insertion holes 308, thereby achieving double-sided locking of the first drilling rig 201 and the second drilling rig 202. In this state, the central screw 303 can synchronously drive the first drilling rig 201 and the second drilling rig 202 to extend smoothly outward along the central axis of the cantilever 1, enabling the first drilling rig 201 and the second drilling rig 202 to operate in parallel.

[0029] like Figure 3As shown, the corresponding contact end of the reset component 203 is covered with rubber material, and the outer walls of both ends of the reset spring 204 are fixedly connected to the outer walls of multiple reset components 203. The reset spring 204 is installed outside the first drilling rig 201 and the second drilling rig 202 and inside the cantilever 1 through multiple reset components 203.

[0030] Utilizing the elastic action of the return spring 204, after contacting the locking of the corresponding threaded pin 307, the corresponding first drilling rig 201 or second drilling rig 202 can automatically retract into the cantilever 1.

[0031] like Figure 2 As shown, the central guide rail 3 is located at the bottom inside the drive assembly 301, and the outer wall of the central guide rail 3 is slidably connected to the bottom inside the drive assembly 301.

[0032] By utilizing the central guide rail 3 to restrict the movement trajectory of the drive component 301, it can cooperate with the central screw 303 to push the drive component 301 to move along the outer wall of the central guide rail 3 when needed.

[0033] like Figure 2 As shown, the central screw 303 is coaxially arranged along the central axis of the drive assembly 301, and the outer wall of the central screw 303 is connected to the internal central thread of the drive assembly 301 by a thread. The central screw 303 is located at the top center of the central guide rail 3.

[0034] By using coaxial transmission and coordinating with the parallel axial constraint of the central guide rail 3, the stability of the drive assembly 301 when moving along the outer wall of the central guide rail 3 is maximized.

[0035] like Figures 3-4 As shown, both sides of the outer wall of the first drilling rig 201 and the second drilling rig 202 are provided with multiple insertion holes 308, and the insertion holes 308 correspond to the ends of the threaded pins 307.

[0036] By utilizing the insertion holes 308 opened on the outer walls of the first drilling rig 201 and the second drilling rig 202, the drive assembly 301 can be synchronously locked with the first drilling rig 201 or the second drilling rig 202 respectively under the action of the threaded pin 307.

[0037] like Figure 5 As shown, the end of the threaded pin 307 near the first drilling machine 201 and the second drilling machine 202 has a smooth surface, and the outer wall of one end of the threaded pin 307 is slidably connected to the inner wall of the insertion hole 308.

[0038] Because the outer wall of one end of the threaded pin 307 is a smooth surface, when the threaded pin 307 is inserted into the socket 308, it will not be affected by the threads on its outer wall.

[0039] like Figures 5-6As shown, the outer wall center of the threaded pin 307 passes through the inner center of the threaded assembly 305, and the outer wall of the threaded pin 307 is threadedly connected to the inner wall of the threaded assembly 305.

[0040] After the outer wall of the threaded pin 307 is threadedly connected to the inner wall of the threaded assembly 305, the hollow shaft motor 304 is allowed to push the threaded pin 307 along the outer wall of the slide rail 306 through the threaded assembly 305, extending or retracting into the drive assembly 301.

[0041] Working Principle: Utilizing the elasticity of the return spring 204, after locking with the corresponding threaded pin 307, the first drilling rig 201 or the second drilling rig 202 can automatically retract into the cantilever 1. By utilizing the central guide rail 3 to restrict the movement trajectory of the drive assembly 301, it can cooperate with the central screw 303 to push the drive assembly 301 along the outer wall of the central guide rail 3 when needed. Through coaxial transmission, combined with the parallel axial constraint of the central guide rail 3, the stability of the drive assembly 301 when moving along the outer wall of the central guide rail 3 is maximized. This is achieved by utilizing the first drilling rig 201 and the second drilling rig 202... The insertion hole 308 on the outer wall of 02 allows the drive assembly 301 to be synchronously locked with the first drilling machine 201 or the second drilling machine 202 under the action of the threaded pin 307. Since the outer wall of one end of the threaded pin 307 is a smooth surface, when the threaded pin 307 is inserted into the insertion hole 308, it will not be interfered with by the threads on its outer wall. After the outer wall of the threaded pin 307 is threadedly connected to the inner wall of the threaded kit 305, the hollow shaft motor 304 is allowed to push the threaded pin 307 along the outer wall of the slide rail 306 through the threaded kit 305, extending or retracting into the drive assembly 301.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rock drilling boom structure with one arm and two drill arms, comprising a cantilever (1), characterized in that: Multiple sliding rods (2) are fixedly connected to both sides of the inner cavity of the cantilever (1), and a first drilling machine (201) and a second drilling machine (202) are slidably connected to one end of the inner cavity of the cantilever (1). A reset assembly (203) is fixedly connected to one side of the outer wall of the first drilling machine (201) and the inner wall of the second drilling machine (202), and a reset spring (204) is fixedly connected between the corresponding surfaces of the multiple reset assemblies (203). A central guide rail (3) is fixedly connected to the bottom of the inner wall of the cantilever (1), and a drive assembly (301) is slidably connected to one end of the outer wall of the central guide rail (3). A working motor (302) is fixedly connected to the inner cavity of the cantilever (1), and a central screw (303) is fixedly connected to the output end of the working motor (302). Multiple hollow shaft motors (304) are fixedly connected to both sides of the drive assembly (301), and threaded fittings (305) are fixedly connected to the inner wall connection ends of the multiple hollow shaft motors (304). Multiple slide rails (306) are fixedly connected to both sides of the inner wall of the drive assembly (301), and threaded pins (307) are slidably connected to one end of the outer wall of the slide rails (306). The outer walls of one end of the multiple threaded pins (307) extend into the interior of the first drilling rig (201) and the second drilling rig (202), respectively.

2. The rock drilling boom structure with one arm and two drill arms according to claim 1, characterized in that: The corresponding contact end of the reset component (203) is covered with rubber material. The outer walls of both ends of the reset spring (204) are fixedly connected to the outer walls of multiple reset components (203). The reset spring (204) is installed outside the first drilling rig (201) and the second drilling rig (202) and inside the cantilever (1) through multiple reset components (203).

3. The rock drilling boom structure with one arm and two drill arms according to claim 1, characterized in that: The central guide rail (3) is located at the bottom inside the drive assembly (301), and the outer wall of the central guide rail (3) is slidably connected to the bottom inside the drive assembly (301).

4. The rock drilling boom structure with one arm and two drill arms according to claim 1, characterized in that: The central screw (303) is coaxially arranged along the central axis of the drive assembly (301), and the outer wall of the central screw (303) is connected to the internal central thread of the drive assembly (301) by a thread. The central screw (303) is located at the top center of the central guide rail (3).

5. The single-arm, dual-drilling rock drilling boom structure according to claim 1, characterized in that: The first drilling rig (201) and the second drilling rig (202) have multiple insertion holes (308) on both sides of their outer walls, and the insertion holes (308) correspond to the ends of the threaded pins (307).

6. The rock drilling boom structure with one arm and two drill arms according to claim 5, characterized in that: The end of the threaded pin (307) near the first drilling machine (201) and the second drilling machine (202) has a smooth surface, and the outer wall of one end of the threaded pin (307) is slidably connected to the inner wall of the insertion hole (308).

7. The rock drilling boom structure with one arm and two drill arms according to claim 6, characterized in that: The outer wall center of the threaded pin (307) passes through the inner center of the threaded assembly (305), and the outer wall of the threaded pin (307) is threadedly connected to the inner wall of the threaded assembly (305).

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