A working device and a roof bolting rig

Abstract

The utility model relates to a kind of operation device, comprising: rock drilling assembly, drill rod is equipped on rock drilling assembly, for drilling anchor rod hole;Hole grinding assembly, hole grinding assembly is equipped on drill rod, hole grinding assembly includes grinding head, for the anchor rod hole end portion is ground into conical mouth;Pushing assembly, pushing assembly is equipped on drill rod, for pushing hole grinding assembly moves;Propelling assembly, propelling assembly is connected with pushing assembly, for driving pushing assembly reciprocating movement along the axis direction of drill rod.It also relates to a kind of anchor rod support construction equipment, including operation device, both can greatly improve the efficiency of anchor rod insertion anchor rod hole, to improve anchor rod support construction efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel construction equipment, specifically relating to an operating device and anchor bolt support construction equipment. Background Technology

[0002] High slopes in water conservancy and hydropower projects (such as reservoir dam slopes and inlet / outlet slopes of water diversion tunnels) are generally characterized by their great height, steep slope, and complex geological conditions (such as the presence of rock layers with developed fissures and loose deposits). Under natural conditions or engineering disturbances (such as excavation and dewatering), high slopes are prone to instability due to insufficient resistance to sliding, which may cause geological disasters such as landslides and collapses, directly threatening engineering construction and personnel safety.

[0003] Anchor bolt support construction involves embedding anchor bolts deep into stable rock layers within the slope. Utilizing the tensile and shear strength of the anchor bolts, loose or easily sliding rock on the slope surface is anchored to the deeper, stable rock mass, forming a stable structure where the anchor bolt and rock mass share the load. Since there are no naturally occurring holes in the rock mass of high slopes suitable for anchor bolts, anchor bolt holes must be drilled during the anchor bolt support construction process to allow the anchor bolts to be smoothly embedded into the slope, rather than merely attached to the rock surface. The diameter and depth of the anchor bolt holes must match the size of the anchor bolts to ensure close contact between the anchor bolt and the hole wall after insertion, laying the structural foundation for subsequent load transfer.

[0004] Traditional anchor bolt holes are straight holes, requiring the anchor bolt to be perfectly coaxial with the hole opening for insertion. This can easily lead to insertion difficulties due to alignment deviations. Therefore, current anchor bolt hole drilling devices often produce straight holes, making it difficult to align the anchor bolt with the hole, severely impacting construction efficiency. Utility Model Content

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a working device and anchor bolt support construction equipment, which can greatly improve the efficiency of anchor bolt insertion into anchor bolt holes, thereby improving the efficiency of anchor bolt support construction.

[0006] The technical solution of this utility model is as follows: A working device includes: a rock drilling assembly with a drill rod for drilling anchor bolt holes; a grinding assembly mounted on the drill rod, including a grinding head for grinding the end of the anchor bolt hole into a tapered opening; a jacking assembly mounted on the drill rod for moving the grinding assembly; and a propulsion assembly connected to the jacking assembly for driving the jacking assembly to reciprocate along the axis of the drill rod.

[0007] Preferably, the grinding assembly includes a guide rod and a retaining ring, one end of the guide rod is connected to the end of the grinding head, and the other end of the guide rod is connected to the retaining ring.

[0008] Preferably, the drill rod has a hexagonal cross-section and is adapted to the guide rod and the end of the grinding head.

[0009] Preferably, the working device includes a bearing assembly, the bearing assembly includes a first bearing that cooperates with the guide rod; and a bearing housing, the first bearing being disposed within the bearing housing 252.

[0010] Preferably, the jacking assembly includes a jacking base disposed on the propulsion assembly; and a second bearing disposed inside the jacking base, the second bearing cooperating with the drill rod.

[0011] Preferably, the propulsion assembly has a first state in which the second bearing abuts against the fixed ring, and a second state in which the second bearing is disengaged from the fixed ring.

[0012] Preferably, the grinding head has a conical structure.

[0013] Preferably, the push base is an inclined structure with an acute angle to the horizontal plane.

[0014] Preferably, the rock drilling assembly includes a rock drill that provides rotational power to the drill rod for drilling.

[0015] An anchor bolt support construction equipment includes the aforementioned working device.

[0016] This utility model provides a working device, including a rock drilling assembly with a drill rod for drilling anchor bolt holes; a grinding assembly mounted on the drill rod, including a grinding head for grinding the end of the anchor bolt hole into a tapered opening; a jacking assembly mounted on the drill rod for moving the grinding assembly; and a propulsion assembly connected to the jacking assembly for driving the jacking assembly to move back and forth along the axis of the drill rod. The working device provided in this application ensures that the axes of the rock drilling assembly, drilling assembly, grinding assembly, and jacking assembly are all aligned with the axis of the anchor bolt hole, and that the propulsion assembly drives each assembly to move along the axis of the drill rod. Mechanically, this ensures that the drilling direction of the drill bit and the grinding direction of the grinding head are consistent with the preset anchor bolt hole direction, avoiding problems such as anchor bolt hole skew and asymmetrical tapered openings caused by component misalignment, thus guaranteeing the dimensional accuracy of the anchor bolt hole. Relying on the mechanical contact triggering mechanism between the jacking component and the grinding component, drilling and grinding can be completed simultaneously in the same work process, eliminating the need to drill first and then disassemble the drill bit to replace the grinding head, significantly reducing the single-hole operation time and improving construction efficiency. This application also provides an anchor bolt support construction device, including an operating apparatus. Therefore, the operating apparatus and anchor bolt support construction device provided by this application can greatly improve the efficiency of anchor bolt insertion into the anchor bolt hole, thereby improving the efficiency of anchor bolt support construction. Attached Figure Description

[0017] Figure 1 A schematic diagram of the working device provided by this utility model; Figure 2 A schematic diagram of the working device provided by this utility model.

[0018] Explanation of reference numerals in the attached figures 21. Propulsion assembly; 22. Rock drilling assembly; 221. Rock drill; 222. Drill rod; 23. Pushing assembly; 231. Pushing base; 232. Second bearing; 24. Grinding assembly; 241. Grinding head; 242. Guide rod; 243. Retaining ring; 25. Bearing assembly; 251. First bearing; 252. Bearing seat. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0020] In the description of this utility model, it should be understood that the terms "upper" and "lower" indicate orientation or positional relationship only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Figures 1 to 2 As shown, this utility model provides a working device, including a rock drilling assembly 22, on which a drill rod 222 is provided for drilling anchor bolt holes; a grinding assembly 24, which is disposed on the drill rod 222 and includes a grinding head 241 for grinding the end of the anchor bolt hole into a tapered opening; a jacking assembly 23, which is disposed on the drill rod 222 for pushing the grinding assembly 24 to move; and a propulsion assembly 21, which is connected to the jacking assembly 23 and is used to drive the jacking assembly 23 to move back and forth along the axis of the drill rod 222. The specific working principle flow of the working device provided in this application is as follows: First, the propulsion component 21 generates a linear driving force forward along the axis of the drill rod 222. This force is transmitted to the jacking component 23 through a mechanical connection structure, causing the jacking component 23 to move along the axis of the drill rod 222 toward the working rock mass. Since the rock drilling component 22 and the jacking component 23 are indirectly connected through the drill rod 222 (the drill rod 222 is fixed to the output end of the rock drilling component 22), when the jacking component 23 moves forward, it drives the rock drilling component 22 to move forward synchronously through the drill rod 222. At the same time, the rock drilling component 22 starts, and its internal drive mechanism outputs rotational power, which is transmitted to the drill rod 222 through the rigid connection between the drill rod 222 and the rock drilling component 22. This causes the drill rod 222 to drive the end drill bit to rotate at high speed, starting to cut the rock mass and gradually forming the anchor bolt hole.

[0022] As the propulsion assembly 21 continues to push the jacking assembly 23 forward, when the drill bit penetrates the rock mass to the point where the anchor hole is formed (i.e., the hole depth is close to the design value), the front end of the jacking assembly 23 makes rigid contact with the rear end of the grinding assembly 24. At this time, the forward force of the jacking assembly 23 begins to be transmitted to the grinding assembly 24. From the perspective of power transmission in the mechanical structure, on the one hand, the thrust of the jacking assembly 23 overcomes the sliding friction between the grinding assembly 24 and the drill rod 222, pushing the grinding assembly 24 to move along the axis of the drill rod 222; on the other hand, the rotational power of the drill rod 222 is transmitted to the grinding head 241, causing the grinding head 241 to rotate synchronously at high speed with the drill rod 222. Under the thrust of the jacking assembly 23, the rotating grinding head 241 gradually penetrates into the bottom of the anchor bolt hole. Its conical working surface contacts and cuts the hole opening, processing the hole opening into a conical opening. During this stage, the rock drilling assembly 22 continues to drill until the drill bit reaches the bottom of the hole, completing the full-depth processing of the anchor bolt hole, so as to realize the synchronous mechanical action of drilling and grinding without the need for staged operation.

[0023] After the anchor bolt hole drilling and tapered end processing are completed, the propulsion component 21 switches to the working state, generating a linear driving force along the axis of the drill rod 222, which drives the jacking component 23 to move away from the working rock mass along the axis of the drill rod 222. When the jacking component 23 moves backward, its front end disengages from the rear end of the grinding component 24. However, since the grinding head 241 is sleeved on the drill rod 222, when the drill rod 222 moves backward with the rock drilling component 22 (the rock drilling component 22 is driven backward by the jacking component 23 through the drill rod 222), the drill rod 222 drives the grinding component 24 to move backward synchronously through the mating structure of the grinding head 241 and the drill rod 222, until the grinding component 24, the jacking component 23, and the rock drilling component 22 all return to their initial positions, completing a single operation cycle.

[0024] As can be seen from the overall workflow of the above-mentioned working device, from a mechanical structure design perspective, the rotating power of the drill rod 222 simultaneously provides power for drilling and grinding, eliminating the need for a separate rotational drive power source for the grinding head 241. Furthermore, the propulsion assembly 21 simultaneously drives the jacking assembly 23, the rock drilling assembly 22, and the grinding assembly 24, eliminating the need for a separate movement drive mechanism for the grinding assembly 24. This design reduces the number of power sources, lowering manufacturing costs and reducing the overall size of the equipment, making it more suitable for narrow working spaces such as high slopes and tunnels. On the other hand, the return of the grinding assembly 24 does not require additional design of return springs, cylinders, or other structures; the drill rod 222 simply moves backward along with the rock drilling assembly 22 to return the grinding assembly 24 to its original position, simplifying the mechanical structure, reducing potential failure points, and improving equipment reliability.

[0025] Importantly, the working device provided in this application ensures that the axes of the rock drilling component 22, drilling and grinding component 24, and jacking component 23 are all aligned with the axis of the anchor bolt hole. Furthermore, the propulsion component 21 drives each component to move along the axis of the drill rod 222. Mechanically, this ensures that the drilling direction of the drill bit and the grinding direction of the grinding head 241 are consistent with the preset anchor bolt hole direction, avoiding problems such as anchor bolt hole misalignment and asymmetrical conical openings caused by component offset, thus guaranteeing the dimensional accuracy of the anchor bolt hole. Relying on the mechanical contact triggering mechanism between the jacking component 23 and the grinding component 24, drilling and grinding can be completed simultaneously in the same work process, eliminating the need to drill first and then disassemble the drill bit to replace the grinding head 241, significantly reducing single-hole operation time and improving construction efficiency. Therefore, the working device provided in this application can greatly improve the efficiency of anchor bolt insertion into the anchor bolt hole, thereby improving the efficiency of anchor bolt support construction.

[0026] Preferably, the grinding assembly 24 includes a guide rod 242 and a retaining ring 243. One end of the guide rod 242 is connected to the end of the grinding head 241, and the other end of the guide rod 242 is connected to the retaining ring 243. In the grinding assembly 24, the grinding head 241, guide rod 242, and retaining ring 243 are rigidly connected in sequence. The entire assembly is fitted onto the outside of the drill rod 222 through a sliding structure of the retaining ring 243 or the guide rod 242, retaining only the freedom of movement along the axis of the drill rod 222. The jacking assembly 23 is located on the side of the retaining ring 243 closer to the rock drilling assembly 22, and the axes of each component coincide with the axis of the anchor bolt hole. The guide rod 242 constrains radial displacement, counteracts the cutting reaction force of the grinding head 241, prevents the grinding head 241 from wobbling, ensures uniform taper of the conical opening, small hole diameter deviation, and ensures the adaptability of the anchor bolt insertion. At the same time, the fixing ring 243 changes the point contact of the push assembly 23 to the surface contact, increases the force-bearing area, reduces local pressure, reduces wear between the push assembly 23 and the grinding assembly 24, extends the service life of the components, and can evenly transmit the thrust to the guide rod 242, preventing the grinding assembly 24 from tilting and getting stuck.

[0027] The drill rod 222 has a hexagonal cross-section and is adapted to fit the guide rod 242 and the end of the grinding head 241. The rotational power output by the rock drilling assembly 22 is transmitted to the hexagonal drill rod 222. The end of the grinding head 241 has an internal hexagonal hole, which forms a rigid fit with the hexagonal drill rod 222. When the drill rod 222 rotates, the shearing force of the hexagonal edges drives the grinding head 241 to rotate synchronously without relative slippage, ensuring a stable output of the torque required for grinding. During the drilling stage, the drill rod 222 drives the drill bit to cut. When the push assembly 23 triggers the grinding, the hexagonal transmission structure causes the grinding head 241 and the drill rod 222 to rotate synchronously. The guide rod 242 moves along the drill rod 222, realizing the synchronous operation of drilling and grinding. After the operation is completed, it moves back to its original position with the drill rod 222. This hexagonal structure has a contact area more than 30% larger than that of a keyed drive, resulting in stronger torque transmission. It can adapt to the high-load requirements of drilling in hard rock masses and avoids the stress concentration problem of keyed connections, thus preventing transmission failure. Compared with friction drives, the hexagonal mesh achieves a 1:1 torque transmission with near-zero power loss. The edges of the hexagonal drill rod 222 assist in the orientation of the guide rod 242. Combined with the guide rod 242's own guiding mechanism, the double constraint keeps the radial runout of the grinding head 241 within a small range. The tapered opening has a small taper error, ensuring the anchor insertion guidance effect. This hexagonal structure allows for quick alignment and assembly of the drill rod 222 and grinding head 241 without additional positioning parts, making it more efficient than keyed connections. After wear, only the grinding head needs to be replaced, without the need to repair the drill rod 222, reducing maintenance costs. The hexagonal transmission surface experiences uniform force, and the local pressure is lower than with a circular drill rod 222, reducing edge wear. Combined with the support and buffer of the guide rod 242, this extends the service life of both the drill rod 222 and the grinding head 241.

[0028] In the embodiments provided in this application, the working device includes a bearing assembly 25, which includes a first bearing 251 that cooperates with a guide rod 242; and a bearing seat 252 in which the first bearing 251 is disposed. The cooperation between the first bearing 251 and the bearing seat 252 double-limits the radial runout of the guide rod 242, counteracts the cutting reaction force of the grinding head 241, avoids the wobbling of the grinding head 241, ensures uniform taper of the tapered opening, and improves the adaptability of the anchor rod insertion. The first bearing 251 converts the sliding friction between the guide rod 242 and the bearing seat 252 into rolling friction, reducing the coefficient of friction, reducing the resistance when the guide rod 242 moves and rotates, reducing the wear of the guide rod 242 and the bearing seat 252, and extending the service life of the components. The bearing housing 252 integrates the installation function of the first bearing 251, eliminating the need for an additional guide rod 242 guide bracket, thus simplifying the device structure. The first bearing 251 can be a standard part, and only the first bearing 251 needs to be replaced after wear, without the need to repair the guide rod 242 or the bearing housing 252, greatly improving maintenance efficiency.

[0029] The push assembly 23 includes a push base 231, which is mounted on the propulsion assembly 21; and a second bearing 232, which is located inside the push base 231 and engages with the drill rod 222. The push base 231 can be rigidly fixed to the propulsion assembly 21 by bolts or a slot structure. The inner ring of the second bearing 232 (which can be a thrust bearing or a deep groove ball bearing) is clearance-fitted with the outer wall of the drill rod 222, and the outer ring is embedded inside the push base 231, forming a mechanical linkage chain of propulsion assembly 21—push base 231—second bearing 232—drill rod 222, ensuring that the push base 231 can move along the axis of the drill rod 222 with the propulsion assembly 21. The propulsion assembly 21 drives the jacking base 231 to move along the axis of the drill rod 222 toward the rock mass. The jacking base 231 drives the second bearing 232 to move forward synchronously. When it moves to the preset position, the front end face of the second bearing 232 rigidly contacts the fixing ring 243 of the grinding assembly 24, smoothly transmitting the propulsion force to the fixing ring 243 through the second bearing 232, pushing the grinding assembly 24 toward the hole opening and triggering the grinding action. During the grinding process, the drill rod 222 rotates at high speed, and the inner ring of the second bearing 232 rotates synchronously with the drill rod 222, while the outer ring remains stationary with the jacking base 231, achieving rotational isolation and preventing the jacking base 231 from rotating with the drill rod 222. After the operation is completed, the propulsion assembly 21 pulls the jacking base 231 in the opposite direction, and the second bearing 232 disengages from the fixing ring 243, returning to its initial state along the axis of the drill rod 222 with the jacking base 231. The push base 231 serves as the propulsion force transmission carrier, ensuring the lossless linear force of the propulsion assembly 21 is transmitted to the second bearing 232 through rigid contact. The annular contact structure of the second bearing 232 ensures that the thrust is evenly applied to the fixed ring 243, preventing force displacement of the grinding assembly 24 and reducing the risk of jamming. The second bearing 232 mechanically isolates the rotational motion of the drill rod 222 from the linear motion of the push base 231, preventing structural wear caused by the push base 231 rotating with the drill rod 222, and ensuring that the rotational power of the drill rod 222 is transmitted to the grinding head 241 without power loss, thus improving grinding efficiency. The second bearing 232 converts the sliding friction between the push base 231 and the drill rod 222 into rolling friction, significantly reducing the coefficient of friction, reducing wear on both the drill rod 222 and the push base 231, extending their service life, and simultaneously reducing the driving force requirement of the propulsion assembly 21, saving energy.

[0030] In the embodiments provided in this application, the propulsion component 21 has a first state in which the second bearing 232 abuts against the fixed ring 243; and a second state in which the second bearing 232 is disengaged from the fixed ring 243. Through linear drive control of the propulsion component 21, the abutting (grinding) and disengaging (standby / returning) states can be precisely switched without the need for an additional locking mechanism, achieving coordinated or separate drilling and grinding, ensuring a continuous workflow and preventing accidental triggering of the grinding component 24. In the second state, the two are disengaged, preventing contact friction between the fixed ring 243 and the second bearing 232 during non-operational periods, reducing ineffective wear of components. In the first state, thrust is transmitted only during the grinding stage, eliminating the need for continuous force application, reducing power loss in the propulsion component 21 and lowering energy consumption. The rigid abutting in the first state ensures lossless thrust transmission, preventing uneven force distribution on the grinding component 24. In the second state, the disengagement gap provides space for the grinding component 24 to return to its original position, preventing interference during return and improving the stability of the operating device.

[0031] The grinding head 241 has a conical structure. The generatrix of the conical structure of the grinding head 241 forms a preset angle with the axis, such as 30°-60°. When rotating, its conical surface contacts the anchor bolt hole opening. Axial force is applied by the jacking assembly 23, causing the cutting edge of the conical surface to gradually penetrate into the rock mass, machining the hole opening into a conical opening with a consistent taper of the grinding head 241. As the grinding head 241 rotates with the drill rod 222, it moves forward along the hole axis. The larger end of the conical structure (away from the root of the grinding head 241) first contacts the edge of the hole opening, gradually expanding the cutting range as it moves, naturally forming a conical transition surface extending outward from the hole opening, without the need for additional adjustment of the cutting trajectory. The rotational torque of the drill rod 222 is transmitted to the grinding head 241 through a hexagonal structure, providing it with cutting power. The axial force of the jacking assembly 23 is transmitted to the grinding head 241 through the fixing ring 243 and the guide rod 242, ensuring close contact between the conical surface and the rock mass, achieving continuous cutting. The conical surface of grinding head 241 serves directly as the forming surface. After cutting, the taper of the borehole is completely consistent with that of grinding head 241, ensuring stable guiding effect during anchor insertion. The conical structure allows the contact area between grinding head 241 and the rock mass to gradually increase with the feed rate, resulting in a smooth increase in cutting force and preventing impact loads from causing chipping of grinding head 241 or cracking of the borehole. Furthermore, the conical surface can automatically correct minor radial misalignments, ensuring a regular conical opening even with slight wobble in grinding head 241, reducing the precision requirements of the guiding mechanism. Alternatively, the conical opening can be designed to complement the conical end of the anchor bolt, transforming point contact alignment during anchor bolt insertion into surface contact guidance. This significantly reduces insertion resistance and alignment accuracy. It should be noted that the conical opening processed using this type of grinding head has a guiding function, significantly improving the efficiency of anchor bolt insertion and thus enhancing overall operational efficiency.

[0032] In the embodiments provided in this application, the jacking base 231 is an inclined structure with an acute angle to the horizontal plane. The jacking base 231 can be designed with an acute angle to the horizontal plane, such as 30°-60°, to match the inclination angle of a high slope. Its inclination direction is consistent with the axial direction of the anchor bolt hole, ensuring that the contact surface between the second bearing 232 on the jacking base 231 and the fixing ring 243 fixed on the grinding assembly 24 is always perpendicular to the axis of the anchor bolt hole, avoiding deviation of the thrust direction due to slope inclination. The propulsion assembly 21 outputs linear driving force along the inclination direction of the jacking base 231. The jacking base 231 guides the force to the axial direction of the anchor bolt hole through its inclined structure, ensuring that the thrust of the second bearing 232 against the fixing ring 243 is completely transmitted along the axis without radial force loss, ensuring smooth movement of the grinding assembly 24 along the hole axis. The drill rod 222 is inclined along the axis of the anchor hole. The inclined structure of the push base 231 matches the inclined posture of the drill rod 222. The inner ring of the second bearing 232 and the outer wall of the drill rod 222 always maintain a coaxial clearance fit, which does not affect the rotation of the drill rod 222, and can move smoothly along the inclined direction with the push base 231, realizing the coordinated action of inclined drilling and inclined grinding. Therefore, this inclined structure allows the push base 231 to fit the high slope construction surface without additional adjustment, avoiding the deviation of the thrust direction from the hole axis due to the slope inclination, ensuring the accurate force on the grinding assembly 24, and preventing the tapered mouth from tilting during processing.

[0033] The rock drilling assembly 22 includes a rock drill 221 that provides rotational power for drilling the drill rod 222. The rock drill 221 can have a built-in drive source (such as a hydraulic motor or electric motor), which converts the power into torque and speed adapted to the drilling requirements through a reduction gearbox (gear set / planetary gear train), and transmits it to the hexagonal drill rod 222 via the output shaft (rigidly connected to the drill rod 222 via a coupling / spline), driving the drill rod 222 to rotate at high speed.

[0034] This application also provides an anchor bolt support construction equipment, including the aforementioned working device. The various technical advantages of the aforementioned working device embodiments are also present, and will not be elaborated further here.

[0035] The embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A working device, characterized in that, include: A rock drilling assembly (22) is provided with a drill rod (222) for drilling anchor bolt holes; A grinding assembly (24) is provided on the drill rod (222). The grinding assembly (24) includes a grinding head (241) for grinding the end of the anchor bolt hole into a tapered opening. A push assembly (23) is mounted on the drill rod (222) and is used to push the grinding assembly (24) to move. The propulsion assembly (21) is connected to the jacking assembly (23) and is used to drive the jacking assembly (23) to move back and forth along the axis of the drill rod (222).

2. The working device according to claim 1, characterized in that, The grinding assembly (24) includes a guide rod (242) and a retaining ring (243). One end of the guide rod (242) is connected to the end of the grinding head (241), and the other end of the guide rod (242) is connected to the retaining ring (243).

3. The working device according to claim 2, characterized in that, The drill rod (222) has a hexagonal cross-section and is adapted to the end of the guide rod (242) and the grinding head (241).

4. The working device according to claim 3, characterized in that, The working device includes a bearing assembly (25), the bearing assembly (25) includes a first bearing (251), the first bearing (251) cooperates with the guide rod (242); Bearing housing (252), wherein the first bearing (251) is disposed within the bearing housing (252).

5. The working device according to claim 4, characterized in that, The jacking assembly (23) includes a jacking base (231), which is disposed on the propulsion assembly (21); The second bearing (232) is located inside the push base (231) and cooperates with the drill rod (222).

6. The working device according to claim 5, characterized in that, Its propulsion component (21) has, The second bearing (232) abuts against the retaining ring (243) in a first state; The second state in which the second bearing (232) is disengaged from the retaining ring (243).

7. The working device according to claim 6, characterized in that, The grinding head (241) has a conical structure.

8. The working device according to claim 7, characterized in that, The push base (231) is an inclined structure with an acute angle to the horizontal plane.

9. The working device according to any one of claims 1 to 8, characterized in that, The rock drilling assembly (22) includes a rock drill (221) that provides rotational power for drilling the drill rod (222).

10. An anchor bolt support construction equipment, characterized in that, Includes the working device as described in any one of claims 1 to 9.

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