Microwave rock breaking constant-resistance anchor cable drilling machine

Abstract

The invention relates to the technical field of mining mechanical equipment, and discloses a microwave rock breaking constant-resistance anchor cable drilling machine which comprises a support and a rotary mounting seat rotationally mounted above the support, a drilling machine body is fixedly mounted on the surface of the rotary mounting seat, a drilling rod is slidably mounted on the side of the drilling machine body, and a microwave emission head is arranged at the end of the drilling rod. A limiting ring is installed on the side face of the rotating installation base, the drill rod penetrates through the limiting ring and extends into the rock slope to be perforated, a sliding plate is installed in the support in a sliding mode, a force increasing assembly is fixedly arranged on the support, and the force increasing assembly is connected between the support and the sliding plate and used for buffering and supporting when the support is stressed. Along with reduction of shaking and displacement of the support, the stability of the drill rod in the punching process can be greatly improved, the perpendicularity of a drilled hole and the uniformity of the hole diameter are guaranteed, and drill rod deviation caused by shaking of the drill rod is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mine mechanical equipment, in particular to a microwave rock breaking constant resistance anchor cable drill. BACKGROUND

[0002] In the rock slope engineering to be drilled, due to the influence of factors such as geological conditions, topography and geomorphology, and human activities, the rock slope to be drilled may be unstable, such as rock slope to be drilled, collapse, etc. By drilling and installing anchor cables (anchor rods), the anchor cables (anchor rods) can be deeply drilled into stable rock or soil to provide a reliable anchoring point for the rock slope to be drilled, but in some hard rock or special geological conditions, the traditional drill rig has low drilling efficiency or even cannot drill. The microwave anchor cable drill uses microwave to heat the rock, causing local thermal cracking of the rock, reducing the strength of the rock, and making it easier to break. If the rock mass of the rock slope to be drilled is relatively hard, such as granite, basalt, etc., the use of the microwave anchor cable drill can improve the drilling efficiency and quality. In related technologies, the traditional construction method is to build a scaffold on the construction site to accommodate the drilling equipment to carry out hole construction. However, this method has many drawbacks. When the drilling equipment is running, it will exert a forward impact force on the rock slope to be drilled in the drilling area, with the purpose of breaking or drilling through the rock slope to be drilled. According to Newton's third law, the action of force is mutual. When the impact head exerts a force on the drilled object, the drilled object will also exert an equal and opposite reaction force on the impact head. Due to the interference of the reaction force, the drill rod is prone to deviation. Once the drill rod deviates, it will cause a series of problems such as inaccurate hole position, deviation and collapse of the anchor cable hole. Therefore, it does not meet the existing needs. To this end, we propose a microwave rock breaking constant resistance anchor cable drill. SUMMARY

[0003] The present application provides a microwave rock breaking constant resistance anchor cable drill, which can ensure the stability of the drill rod during drilling, solving the problem of drill rod deviation and causing deviation and collapse of the hole mentioned in the background art.

[0004] In order to achieve the above purpose, the present application provides a microwave rock breaking constant resistance anchor cable drill, which comprises a support and a rotary mounting seat rotatably mounted above the support, a drill body is fixedly mounted on the surface of the rotary mounting seat, a drill rod is mounted on the side of the drill body, a microwave emission head is arranged at the end of the drill rod, a limiting ring is mounted on the side of the rotary mounting seat, the drill rod passes through the limiting ring and extends into the rock slope to be drilled, a sliding plate is mounted on the inner side of the support, and a force increasing assembly is fixedly arranged on the support to buffer and support the force acting on the support. The force increasing assembly comprises a support rod fixedly connected to the side of the sliding plate, a sleeve slidingly installed inside the rock slope to be drilled, the support rod being slidingly connected inside the sleeve, a meshing gear being rotatably installed between the support and the sliding plate, a first tooth being arranged on the inner wall of the support, a second tooth being arranged on the surface of the sliding plate, the first tooth and the second tooth being in meshing transmission with the surface of the meshing gear, and a buffer spring being fixedly connected between the support and the sliding plate.

[0005] Optionally, two fixed discs are fixedly connected to the support, a driving shaft being rotatably connected between the two fixed discs, the rotating mounting seat being fixedly installed on the surface of the driving shaft, a servo motor being fixedly installed on the side of the fixed disc, and the output shaft of the servo motor penetrating through the fixed disc and being fixedly connected to the end of the driving shaft.

[0006] Optionally, a rotating shaft is fixedly connected to the middle of the meshing gear, and U-shaped frames are fixedly connected to the two ends of the rotating shaft respectively.

[0007] Optionally, limit grooves are formed in the two sides of the support, and limit blocks are fixedly connected to the side of the U-shaped frame and slidingly engaged in the limit grooves.

[0008] Optionally, a first mounting cylinder is fixedly connected to the side of the support, a second mounting cylinder is fixedly connected to the side of the sliding plate, and the buffer spring is sleeved outside the first mounting cylinder and the second mounting cylinder.

[0009] Optionally, a fixed rod is fixedly connected to the inner wall of the first mounting cylinder, a piston disc is fixedly connected to the end of the fixed rod, the second mounting cylinder is arranged as a piston cavity, the piston disc is slidingly connected in the second mounting cylinder, a through hole is formed in the bottom of the second mounting cylinder, and the through hole communicates the second mounting cylinder with the outside.

[0010] Optionally, a through groove is formed through the piston disc, two fixed blocks are fixedly connected to the inner wall of the through groove, a valve plate is slidingly connected between the two fixed blocks, a notch is formed in the fixed block, and a return spring is fixedly connected between the notch and the valve plate.

[0011] Optionally, a rack plate is fixedly connected to the side of the U-shaped frame, a threaded groove is formed in the inside of the fixed disc, a gear rotating bolt is installed on the side of the fixed disc, the gear rotating bolt is screwedly connected in the threaded groove, and the rack plate is in meshing transmission with the gear rotating bolt.

[0012] Optionally, a hollow circular ring base is fixedly connected inside the thread groove, the hollow circular ring base is communicated with the thread groove and the outside, the extension column is fixedly connected to the end of the rotating shaft, and the extension column passes through the hollow circular ring base and extends to the inside of the thread groove.

[0013] Optionally, a clamping cylinder is fixedly connected to the side of the hollow circular ring base, a clamping ring is connected to the end of the clamping cylinder, and the gear rotating bolt is rotationally matched with the clamping ring.

[0014] Through the above technical solution, the microwave rock breaking constant resistance anchor cable drilling machine provided by the present disclosure has the following advantages in use: By arranging the force increasing assembly, as the reduction of the shaking and displacement of the support, the stability of the drill rod in the drilling process is also greatly improved, which not only ensures the perpendicularity of the drilling and the uniformity of the hole diameter, but also reduces the drill rod deviation caused by the shaking of the drill rod, triggers a series of hole forming quality, thereby shortens the construction time of a single drilling and speeds up the progress of the entire project. By arranging the valve plate and the clamping ring, the damping effect is generated by the cooperation of the gas pressure, the valve plate and the return spring, the vibration frequency of the buffer spring is slowed down, the violent vibration and rebound are avoided, the device runs more stably, and the limiting of the driving shaft is realized through a series of transmission and extrusion actions driven by the U-shaped frame. On the basis of the limiting of the servo motor, the unnecessary displacement and shaking of the driving shaft in the working process due to the reaction force in the construction is avoided as much as possible, and the stability of the driving shaft is ensured.

[0015] Other features and advantages of the present disclosure will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, and together with the following specific embodiments, serve to explain the present disclosure but do not constitute a limitation on the present disclosure. In the drawings: Figure 1 It is a schematic diagram of the three-dimensional structure of the present disclosure.

[0017] Figure 2 It is a schematic diagram of the side view structure of the present disclosure.

[0018] Figure 3 It is a schematic diagram of the partial three-dimensional structure of the present disclosure.

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the first mounting cylinder and the second mounting cylinder of the present disclosure.

[0020] Figure 5 It is a schematic diagram of the enlarged structure at A of the present disclosure. Figure 4

[0021] Figure 6 ​A schematic view of a fixed disc profile structure of the present application.

[0022] Figure 7 A schematic view of a clamping cylinder structure of the present application.

[0023] Figure 8 A schematic view of an extension column and clamping cylinder clamping structure of the present application.

[0024] Figure 9 A schematic view of a gear rotating bolt and clamping ring clamping structure of the present application.

[0025] BRIEF DESCRIPTION OF DRAWINGS: 1, support; 11, rotating mounting seat; 12, drilling machine body; 13, drill rod; 101, first tooth; 102, limiting groove; 103, fixed disc; 1031, driving shaft; 104, extension column; 105, servo motor; 2, sliding plate; 201, support rod; 202, sleeve; 203, second tooth; 204, meshing gear; 205, buffer spring; 206, rotating shaft; 207, U-shaped frame; 2071, limiting block; 208, first mounting cylinder; 209, second mounting cylinder; 210, fixed rod; 211, piston disc; 212, through groove; 213, fixed block; 214, valve plate; 215, notch; 216, return spring; 3, rack plate; 301, gear rotating bolt; 302, hollow circular ring base; 303, clamping cylinder; 304, clamping ring. DETAILED DESCRIPTION

[0026] In order to make the above objectives, features and advantages of the present disclosure more obvious and easy to understand, the specific embodiments of the present disclosure are described in detail below in combination with the drawings. In the following description, a lot of specific details are set forth in order to facilitate a full understanding of the present disclosure. However, the present disclosure can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present disclosure, so the present disclosure is not limited by the specific embodiments disclosed below.

[0027] In the description of the present disclosure, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present disclosure. The terms "first", "second" are used to distinguish one element from another element, and do not have sequential nature and importance. In addition, the following description, when referring to the drawings, the same reference numerals in different drawings represent the same or similar elements, and the present disclosure does not make redundant description here.

[0028] In the present disclosure, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0029] According to some embodiments of the present disclosure, a microwave rock breaking constant resistance anchor cable drill is provided, referring to Figures 1-9 the microwave rock breaking constant resistance anchor cable drill includes a support 1 and a rotating mounting seat 11 rotatingly mounted above the support 1, a drill body 12 is fixedly mounted on the surface of the rotating mounting seat 11, a drill rod 13 is mounted on the side of the drill body 12, a microwave emission head is arranged at the end of the drill rod 13, a limiting ring is mounted on the side of the rotating mounting seat 11, the drill rod 13 passes through the limiting ring and extends into the rock slope to be drilled, a sliding plate 2 is arranged on the inner side of the support 1, and a reinforcing assembly is fixedly arranged on the support 1 to buffer and support the force borne by the support 1; The reinforcing assembly includes a supporting rod 201 fixedly connected to the side of the sliding plate 2, and a sleeve 202 slidingly mounted in the rock slope to be drilled, the supporting rod 201 is slidingly connected in the sleeve 202, an engaging gear 204 is rotatably mounted between the support 1 and the sliding plate 2, a first tooth 101 is arranged on the inner wall of the support 1, a second tooth 203 is arranged on the surface of the sliding plate 2, the first tooth 101 and the second tooth 203 are in meshing transmission with the surface of the engaging gear 204, and a buffer spring 205 is fixedly connected between the support 1 and the sliding plate 2.

[0030] Thus, in the pre-construction preparation stage, the support 1 needs to be placed on the scaffolding. Then, the sleeve 202 is precisely driven into the rock slope to be drilled, providing stable foundation support. The support rod 201 is then slidably inserted into the sleeve 202, creating a tight fit between the two. During construction, the drilling rig 12 drives the drill rod 13 to perform drilling operations. As the drill rod 13 rotates at high speed and drills into the rock slope to be drilled, it generates complex impact and reaction forces. These forces are transmitted through the drill rod 13 to the rotating mounting base 11, and then further act on the support 1. When the support 1 is impacted by the drilling of the drill rod 13, the support 1 will shift backward.

[0031] The bracket 1 moves the first tooth 101 on its inner wall to the left. Since the first tooth 101 and the second tooth 203 on the surface of the sliding plate 2 simultaneously mesh with both sides of the meshing gear 204, the meshing gear 204 will rotate counterclockwise (see attached instruction manual). Figure 1 (Observed from the perspective of the drill bit 1), which in turn drives the second tooth 203 and the sliding plate 2 connected to it to move to the right. As the sliding plate 2 moves to the right, the buffer spring 205 between the support 1 and the sliding plate 2 is further stretched, and the elongation of the buffer spring 205 increases, thus increasing its force. Therefore, the increase in the force of the buffer spring 205 significantly enhances the supporting force on the support 1 and the sliding plate 2. This increased supporting force can effectively resist the impact generated by the drill rod 13 drilling, reduce the swaying and displacement of the support 1, improve the stability and reliability of the entire construction device, thereby ensuring the accuracy and quality of the drilling operation and reducing construction risks.

[0032] In addition, two fixed plates 103 are fixedly connected to the bracket 1, and a drive shaft 1031 is rotatably connected between the two fixed plates 103. A rotating mounting base 11 is fixedly installed on the surface of the drive shaft 1031. A servo motor 105 is fixedly installed on the side of the fixed plate 103. The output shaft of the servo motor 105 passes through the fixed plate 103 and is coaxially connected with the drive shaft 1031. When the servo motor 105 is started, it drives the drive shaft 1031 to rotate, so that it reaches a suitable angle for construction, and construction is carried out on the rock slope to be drilled.

[0033] A rotating shaft 206 is fixedly connected to the middle of the meshing gear 204. U-shaped frames 207 are fixedly connected to both ends of the rotating shaft 206, and the U-shaped frames 207 are fixedly connected to both sides of the sliding plate 2. Limiting grooves 102 are opened on both sides of the bracket 1. Limiting blocks 2071 are fixedly connected to the sides of the U-shaped frames 207, and the limiting blocks 2071 are slidably engaged inside the limiting grooves 102.

[0034] Further, the bracket 1 is fixedly connected with a first mounting cylinder 208 on the side, the sliding plate 2 is fixedly connected with a second mounting cylinder 209 on the side, the buffer spring 205 is sleeved outside the first mounting cylinder 208 and the second mounting cylinder 209, the second mounting cylinder 209 is internally provided with hydraulic oil, the first mounting cylinder 208 is fixedly connected with a fixed rod 210 on the inner wall, the fixed rod 210 is fixedly connected with a piston disc 211 at the end, the second mounting cylinder 209 is internally provided as a piston cavity, the piston disc 211 is slidingly connected in the second mounting cylinder 209, and the second mounting cylinder 209 is provided with a through hole in the bottom.

[0035] The piston disc 211 is internally provided with a through groove 212, two fixed blocks 213 are fixedly connected on the inner wall of the through groove 212, a valve plate 214 is slidingly connected between the two fixed blocks 213, a notch 215 is formed in the fixed block 213, a return spring 216 is fixedly connected between the notch 215 and the valve plate 214, a flow hole is formed in the valve plate 214, the U-shaped frame 207 is fixedly connected with a rack plate 3 on the side, a threaded groove is formed in the fixed disc 103, the fixed disc 103 is provided with a gear rotating pin 301 on the side, the gear rotating pin 301 is screwedly connected in the threaded groove, and the rack plate 3 is in meshing transmission with the gear rotating pin 301.

[0036] The threaded groove is fixedly connected with a hollow circular ring base 302, the rotating shaft 206 is fixedly connected with an extension column 104 at the end, the extension column 104 passes through the hollow circular ring base 302 and extends into the threaded groove, the hollow circular ring base 302 is fixedly connected with a clamping cylinder 303 on the side, the clamping cylinder 303 is connected with a clamping ring 304 at the end, and the gear rotating pin 301 is in rotational cooperation with the clamping ring 304.

[0037] Through the technical scheme, the microwave rock breaking constant resistance anchor cable drill provided by the present disclosure is used, the buffer spring 205 is stretched, the fixed rod 210 inside the first mounting cylinder 208 linked with the buffer spring 205 is moved, the other end of the fixed rod 210 is provided with the piston disc 211, the piston disc 211 slides inside the second mounting cylinder 209 along with the movement of the fixed rod 210, in normal state, the reset spring 216 is in natural elongation state, the valve plate 214 is tightly abutted with the fixed block 213, when the second mounting cylinder 209 moves to the left, the piston disc 211 moves to the right inside the second mounting cylinder 209, the hydraulic oil extrudes the valve plate 214, the valve plate 214 drives the reset spring 216 to stretch and separate from the inner wall of the slot 215, the hydraulic oil can flow out through the through slot 212, when the buffer spring 205 contracts, the piston disc 211 moves to the left inside the second mounting cylinder 209, the hydraulic oil extrudes the valve plate 214, the valve plate 214 is abutted with the slot 215, the hydraulic oil flows out through the flow hole in the middle of the valve plate 214, the slow flow of the hydraulic oil can generate certain damping effect on the reset movement of the buffer spring 205, the vibration frequency of the buffer spring 205 is slowed down, the violent vibration and rebound of the buffer spring 205 due to the rapid reset is avoided, the stability and reliability of the whole device are further improved, and the service life of the equipment is prolonged; When the U-shaped frame 207 translates, the rack plate 3 is driven to engage and drive the gear rotating bolt 301, the gear rotating bolt 301 rotates, and the gear rotating bolt 301 is screwed into the threaded groove at the same time, extruding the clamping ring 304 and extruding the extension column 104 inserted into the clamping ring 304. The extension column 104 and the clamping ring 304 are usually gap-fitted to ensure that the extension column 104 can work stably in the clamping ring 304. When the gear rotating bolt 301 extrudes the clamping ring 304, the clamping ring 304 extrudes the extension column 104, achieving the effect of limiting the driving shaft 1031.

[0038] In the initial state, the gear rotating bolt 301 is only partially screwed into the threaded groove and is not tightened (i.e., the threaded connection exists but there is no pre-tightening force, and the axial direction is not locked), and a limiting rod is arranged between the gear rotating bolt 301 and the fixed disc 103, so that the gear rotating bolt 301 is not completely separated from the threaded groove, and the rack plate 3 drives the gear rotating bolt 301 to rotate. Since the gear rotating bolt 301 is screwed into the threaded groove of the fixed disc 103, rotation will cause it to move axially along the thread, thereby generating a pushing force to extrude the clamping ring 304, so that the clamping ring 304 extrudes the driving shaft 1031 to limit the driving shaft 1031.

[0039] It should be noted that the specific model, working principle and use mode of the drill body 12, the drill rod 13 and the microwave emission head are well known to those skilled in the art, and will not be described here.

[0040] The preferred embodiments of the present disclosure are described in detail above with reference to the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Various simple modifications can be made to the technical solutions of the present disclosure within the technical concept of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0041] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described again in the present disclosure.

[0042] In addition, various different embodiments of the present disclosure can also be combined in any appropriate manner, as long as they do not deviate from the idea of the present disclosure, and they should also be considered as disclosed in the present disclosure.

Claims

1. A microwave rock breaking constant resistance anchor cable drilling machine, comprising a support (1) and a rotary mounting seat (11) rotatably mounted above the support (1), a drilling machine body (12) is fixedly mounted on the surface of the rotary mounting seat (11), a drill rod (13) is mounted on the side of the drilling machine body (12), and a microwave emission head is arranged at the end of the drill rod (13), characterized in that: The rotating mounting base (11) is provided with a limiting ring, the drill rod (13) passes through the limiting ring and extends to the inside of the rock slope to be drilled, the bracket (1) is provided with a sliding plate (2) on the side, and a reinforcing assembly is fixedly arranged on the bracket (1) and used for buffering and supporting the force borne by the bracket (1); The reinforcing assembly comprises a supporting rod (201) fixedly connected to the side of the sliding plate (2) and a sleeve (202) slidingly arranged in the inside of the rock slope to be drilled, the supporting rod (201) is slidingly connected to the inside of the sleeve (202), the bracket (1) and the sliding plate (2) are rotatably provided with an engaging gear (204), the inner wall of the bracket (1) is provided with first teeth (101), the surface of the sliding plate (2) is provided with second teeth (203), the first teeth (101) and the second teeth (203) are in meshing transmission with the surface of the engaging gear (204), and the bracket (1) and the sliding plate (2) are fixedly connected with a buffer spring (205).

2. The microwave rock breaking constant resistance anchor cable drill of claim 1, characterized in that: The bracket (1) is fixedly connected with two fixed discs (103), the two fixed discs (103) are rotatably connected with a driving shaft (1031), the rotating mounting base (11) is fixedly arranged on the surface of the driving shaft (1031), and the fixed disc (103) is fixedly provided with a servo motor (105) on the side.

3. A microwave rock breaking constant resistance anchor cable drill as claimed in claim 2 wherein: The engaging gear (204) is fixedly connected with a rotating shaft (206) in the middle, the rotating shaft (206) is fixedly connected with U-shaped frames (207) at both ends, and the U-shaped frames (207) are fixedly connected to the two sides of the sliding plate (2).

4. The microwave rock breaking constant resistance anchor cable drill of claim 1, wherein: The bracket (1) is provided with a limiting groove (102) on the two sides, the U-shaped frame (207) is fixedly connected with a limiting block (2071) on the side, and the limiting block (2071) is slidingly clamped in the inside of the limiting groove (102).

5. The microwave rock breaking constant resistance anchor cable drill of claim 1, wherein: The bracket (1) is fixedly connected with a first mounting cylinder (208) on the side, the sliding plate (2) is fixedly connected with a second mounting cylinder (209) on the side, and the buffer spring (205) is sleeved outside the first mounting cylinder (208) and the second mounting cylinder (209).

6. A microwave rock breaking constant resistance anchor cable drill as claimed in claim 5 wherein: The first mounting cylinder (208) is fixedly connected with a fixed rod (210) on the inner wall, the fixed rod (210) is fixedly connected with a piston disc (211) at the end, the second mounting cylinder (209) is provided with a piston cavity in the inside, the piston disc (211) is slidingly connected in the inside of the second mounting cylinder (209), the second mounting cylinder (209) is provided with a through hole in the bottom, and the through hole communicates the second mounting cylinder (209) with the outside.

7. A microwave rock breaking constant resistance anchor cable drill as claimed in claim 6 wherein: The piston disc (211) is internally provided with a through groove (212), the inner wall of the through groove (212) is fixedly connected with two fixed blocks (213), the two fixed blocks (213) are slidably connected with a valve plate (214), the fixed block (213) is provided with a notch (215), and the notch (215) and the valve plate (214) are fixedly connected with a reset spring (216).

8. The microwave rock breaking constant resistance anchor cable drill of claim 3, wherein: The U-shaped frame (207) is fixedly connected with a rack plate (3), the fixed disc (103) is internally provided with a threaded groove, the fixed disc (103) is provided with a gear rotating pin (301) on the side surface, the gear rotating pin (301) is screwedly connected in the threaded groove, and the rack plate (3) is in meshing transmission with the gear rotating pin (301).

9. A microwave rock breaking constant resistance anchor cable drill as claimed in claim 8 wherein: The threaded groove is fixedly connected with a hollow circular ring base (302), the hollow circular ring base (302) is communicated with the threaded groove and the outside, the rotating shaft (206) is fixedly connected with an extension column (104) at the end, and the extension column (104) penetrates through the hollow circular ring base (302) and extends into the threaded groove.

10. A microwave rock breaking constant resistance anchor cable drill as claimed in claim 9 wherein: The hollow circular ring base (302) is fixedly connected with a clamping cylinder (303) on the side surface, the clamping cylinder (303) is connected with a clamping ring (304) at the end, and the gear rotating pin (301) is in rotating cooperation with the clamping ring (304).

Images