Rock deep hole grinding device for guiding type flexible long rod sensor support

Abstract

The invention discloses a rock deep hole grinding device for a guiding type flexible long rod sensor support, and solves the problems of secondary damage to hole walls, large work amount and huge and heavy equipment in rock deep hole grinding. The device specifically comprises a driving base frame installed at the front end of a flexible long rod sensor support, a driving assembly arranged in the driving base frame, a cutter base arranged at the acting end of the driving assembly, a cutter arranged on the cutter base and an outer cover. The cutter base comprises a circular base plate and a cylindrical cutter rest; the chassis is connected with the acting end of the driving assembly, N pairs of parallel plates are arranged on the outer wall of the tool rest in the circumferential direction, and N is larger than or equal to 3. The N cutters correspond to the N pairs of parallel plates in a one-to-one mode, one end of each cutter is clamped between the corresponding pair of parallel plates, and the other end of each cutter faces the direction away from the side wall of the cutter rest; the outer cover is sleeved outside the knife rest, and the side wall of the outer cover is provided with a notch for the other end of the knife to extend out.

Description

Technical Field

[0001] The invention relates to a rock deep hole grinding device, in particular to a rock deep hole grinding device for a guided flexible long rod sensor bracket. Background Art

[0002] In geological surveys and geotechnical media research, in order to obtain accurate data of the deep layers of geotechnical media, it is often necessary to install mechanical sensors (acceleration, velocity and displacement sensors, etc.) into deep holes of geotechnical media. Generally, the positioning and installation of sensors are achieved through flexible long rod brackets. Due to the complex geomorphic environment, the quality of deep holes of geotechnical media obtained by using different drilling equipment is difficult to guarantee. Various protrusions are inevitably present in the deep holes, which is very unfavorable for the penetration and lowering of flexible long rod brackets. Due to the limited operating space, there is currently no suitable equipment or device for grinding deep holes in rocks.

[0003] Generally, drilling equipment can be used for secondary hole repair, but there are several problems:

[0004] (1) The drilling equipment cannot ensure that the two construction positions are completely consistent, which is very likely to cause secondary damage and further produce more irregular protrusions;

[0005] (2) The drill bit of drilling equipment is mainly designed for drilling. It has obvious drilling characteristics and cannot protect the existing hole wall. It is not suitable for grinding. Therefore, it is generally preferred to re-drill. However, the re-drilling project is large. The position of the new hole deviates from the designed position, which may cause systematic adjustments and a large workload.

[0006] (3) Drilling equipment is generally relatively large and bulky, and may not be suitable for re-entry when installing a flexible long rod;

[0007] (4) It is generally difficult to locate the protrusion position when using drilling equipment or simple tooling for grinding. Special tooling or equipment is required for measurement. Otherwise, accurate construction cannot be performed, further increasing the complexity of the operation. Summary of the invention

[0008] In order to solve the technical problems of secondary damage to the hole wall, large engineering workload and bulky and heavy equipment in rock deep hole grinding, the present invention provides a rock deep hole grinding device for a guided flexible long rod sensor bracket.

[0009] In order to achieve the above object, the present invention adopts the following technical solution:

[0010] A rock deep hole grinding device for a guided flexible long rod sensor bracket is special in that it comprises a driving base mounted on the front end of the flexible long rod sensor bracket, a driving assembly arranged in the driving base, a tool base arranged at the action end of the driving assembly, a tool and an outer cover arranged on the tool base;

[0011] The driving assembly is used to drive the tool base, the tool and the outer cover to rotate;

[0012] The tool base comprises a circular chassis and a cylindrical tool holder; the center of the chassis is detachably connected to the action end of the driving assembly; one end of the tool holder is coaxially connected to the side of the chassis away from the driving assembly, and N pairs of parallel plates are arranged on the outer wall of the tool holder around its circumference; each pair of parallel plates is connected to the outer wall of the tool holder and is perpendicular to the same cutting plane, and its length direction is consistent with the axis direction of the tool holder, N ≥ 3;

[0013] The tool comprises N pieces, and corresponds to the N pairs of parallel plates one by one, one end of each tool is clamped between the corresponding pair of parallel plates, and the other end faces away from the side wall of the tool holder;

[0014] The outer cover is sleeved on the outside of the tool holder, and a notch is arranged on the side wall of the outer cover for the other end of the tool to extend out.

[0015] Further, it also includes a tool adjustment bracket;

[0016] One end of the tool is provided with a tool slope;

[0017] The tool adjustment bracket comprises an adjustment ring, an adjustment foot and an adjustment disc;

[0018] The adjusting ring is located at the other end of the tool holder and is coaxially arranged with the tool holder;

[0019] The adjusting legs include N legs, which correspond to the N tools one by one. One end of each adjusting leg is connected to the adjusting ring, and the other end is inserted between the corresponding tool and the side wall of the tool holder. The outer wall of the other end of each adjusting leg is provided with a leg slope.

[0020] The inclined surface of the support foot and the inclined surface of the tool have the same inclination angle, and the two are in contact and cooperate with each other to adjust the length of the tool extending out of the notch;

[0021] The adjusting disc is located at the center of the adjusting ring, and N connecting rods are arranged between the circumferential outer wall of the adjusting disc and the inner wall of the adjusting ring; the N connecting rods correspond to the N adjusting feet one by one;

[0022] An adjusting bolt is arranged at the center of the adjusting disc; the adjusting bolt passes through the adjusting disc and is threadedly connected with the chassis.

[0023] Further, the outer cover comprises a cylindrical cover and a conical cover which are coaxially connected;

[0024] The cylindrical cover is sleeved outside the tool holder;

[0025] The notch is arranged at one end of the cylindrical cover away from the conical cover;

[0026] The large end of the conical cover is connected to the cylindrical cover, and the center of the small end is provided with a blind hole along the axial direction;

[0027] The inner wall of the tool holder is provided with N first protrusions, each of which is located between two adjacent pairs of parallel plates; each first protrusion is provided with a first connecting hole;

[0028] N connecting bolts are provided at the bottom of the blind hole, and the N connecting bolts are respectively passed through between two adjacent connecting rods and then threadedly connected with the inner walls of the N first connecting holes.

[0029] Furthermore, a second protrusion and a third protrusion are respectively provided at the center of two sides of the chassis;

[0030] A second connecting hole is provided at the center of the second protrusion;

[0031] A third connecting hole is provided at the center of the third protrusion;

[0032] The active end of the driving assembly is detachably connected to the chassis via a second connecting hole;

[0033] The adjusting bolt is threadedly connected to the inner wall of the third connecting hole.

[0034] Furthermore, the driving assembly includes a driving motor and a reducer;

[0035] The driving motor is connected to an external controller and a power source via a control cable arranged inside the flexible long rod sensor bracket, and its driving shaft is connected to an input end of a reducer;

[0036] The output shaft of the reducer extends into the second connecting hole and is detachably connected to the second protrusion.

[0037] Further, it also includes a square key;

[0038] The outer wall of the output shaft is provided with a first mounting groove whose length direction is consistent with the axis direction thereof;

[0039] A second mounting groove is provided on the inner wall of the second connecting hole of the second protrusion, the length direction of which is consistent with the axial direction thereof;

[0040] A portion of the square key is embedded in the first installation groove, and another portion is embedded in the second installation groove.

[0041] Furthermore, each pair of parallel plates is provided with at least one tightening bolt for tightening the corresponding tool.

[0042] Further, the driving base comprises a first connecting ring, a second connecting ring, and a plurality of connecting plates uniformly connected between the first connecting ring and the second connecting ring around the circumference;

[0043] The first connecting ring is sleeved in the flexible long rod sensor bracket;

[0044] The second connecting ring is provided with a connecting disc at one end away from the first connecting ring;

[0045] The driving motor is supported in the first connecting ring; the reducer is supported in the second connecting ring, and the output shaft thereof passes through the center of the connecting disc and is detachably connected to the first protrusion.

[0046] Furthermore, a plurality of U-shaped frames are provided on the inner wall of the first connecting ring;

[0047] The U-shaped bottom of the U-shaped frame is connected to the inner wall of the first connecting ring, and the open end thereof is used to support the outer wall of the driving motor.

[0048] Further, the flexible long rod sensor bracket includes a docking ring and a plurality of flat steels;

[0049] The docking ring is sleeved outside the driving base frame;

[0050] The plurality of flat steels are evenly arranged around the butt joint ring, one end of each flat steel is connected to the outer wall of the butt joint ring, and the other end extends to the outside of the deep rock hole to be ground.

[0051] Beneficial effects of the present invention:

[0052] 1. The rock deep hole grinding device for the guided flexible long rod sensor bracket provided by the present invention is equipped with a driving base frame and an outer cover which are in an overall cylindrical shape at the front end of the flexible long rod sensor bracket. The overall shape is cylindrical, and each tool extends radially. There are no other sharp parts. It can only grind the protrusions on the inner wall of the rock deep hole, which reduces the workload and can also minimize the secondary damage to the hole wall.

[0053] 2. The rock deep hole grinding device for the guided flexible long rod sensor bracket provided by the present invention is also provided with a tool adjustment bracket. By adjusting the contact and cooperation between the support leg inclined surface on the support leg and the tool inclined surface on the tool, the length of the tool extending out of the notch can be adjusted, so that the device can adapt to protrusions of different sizes, thereby increasing the scope of application of the device.

[0054] 3. The rock deep hole grinding device for the guided flexible long rod sensor bracket provided by the present invention has a conical cover at the front end, which can guide the downward route of the device to avoid secondary damage to the rock hole wall during the downward process of the bracket, and a blind hole is provided in the conical cover, so that an incision is formed at the small end of the conical cover. The incision can cut excessive protrusions once during the downward process of the device, reducing the workload of tool grinding.

[0055] 4. The rock deep hole grinding device for the guided flexible long rod sensor bracket provided by the present invention is compact in size, is not restricted by the surrounding construction environment, can be put into operation at any time, and is easy and efficient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is a structural schematic diagram of a rock deep hole grinding device for a guided flexible long rod sensor bracket of the present invention located in a rock deep hole to be ground;

[0057] Figure 2 It is a structural schematic diagram of an embodiment of a rock deep hole grinding device for a guided flexible long rod sensor bracket of the present invention;

[0058] Figure 3 It is an axial cross-sectional view of an embodiment of a rock deep hole grinding device for a guided flexible long rod sensor bracket of the present invention;

[0059] Figure 4 It is an exploded view of an embodiment of a rock deep hole grinding device for a guided flexible long rod sensor bracket of the present invention;

[0060] Figure 5 Schematic diagram of the structure of the tool base in the embodiment of the present invention.

[0061] Figure Number:

[0062] 1-flexible long rod sensor bracket, 11-docking ring, 12-flat steel, 2-driving base, 21-first connecting ring, 211-U-shaped frame, 22-second connecting ring, 23-connecting plate, 24-connecting disc, 3-driving motor, 31-control cable, 4-reducer, 41-output shaft, 42-first mounting groove, 5-tool base, 51-chassis, 511-second protrusion, 512-third protrusion, 52-tool Rack, 521-first protrusion, 522-first connecting hole, 53-parallel plate, 6-square key, 7-tool, 71-tool slope, 8-tool adjustment bracket, 81-adjusting ring, 82-adjusting foot, 83-adjusting disc, 84-foot slope, 85-connecting rod, 9-adjusting bolt, 10-outer cover, 101-cylindrical cover, 102-conical cover, 103-notch, 104-blind hole, 105-connecting bolt. DETAILED DESCRIPTION

[0063] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0064] The embodiment of the present invention provides a rock deep hole grinding device for a guided flexible long rod sensor bracket, such as Figure 1 and Figure 2As shown, it includes a flexible long rod sensor bracket 1, a driving base 2, a driving motor 3, a reducer 4, a tool base 5, a square key 6, a tool 7, a tool adjustment bracket 8, an adjustment bolt 9, and an outer cover 10.

[0065] The flexible long rod sensor bracket 1 includes a docking ring 11 and four flat steels 12. The docking ring 11 is a cylindrical structure. The docking ring 11 is sleeved outside the driving base 2 and fastened by bolts. The four flat steels 12 are evenly arranged around the docking ring 11. One end of each flat steel 12 is connected to the outer wall of the docking ring 11, and the other end extends to the outside of the deep rock hole to be repaired.

[0066] The driving base frame 2 includes a first connecting ring 21, a second connecting ring 22, and four connecting plates 23 uniformly connected between the first connecting ring 21 and the second connecting ring 22 around the circumference; the first connecting ring 21 is sleeved in the front end of the flexible long rod sensor bracket 1; the second connecting ring 22 is provided with a connecting disc 24 at one end away from the first connecting ring 21. A plurality of U-shaped frames 211 are provided on the inner wall of the first connecting ring 21;

[0067] The driving assembly is used to drive the tool base 5, the tool 7 and the outer cover 10 to rotate; the driving assembly includes a driving motor 3 and a reducer 4; the driving motor 3 is supported in the first connecting ring 21, and the U-shaped bottom of the U-shaped frame 211 is connected to the inner wall of the first connecting ring 21, and its open end is used to support the outer wall of the driving motor 3; the driving motor 3 is connected to the external controller and the power supply through the control cable 31 arranged inside the flexible long rod sensor bracket 1, and its driving shaft is connected to the input end of the reducer 4; the reducer 4 is supported in the second connecting ring 22, and its output shaft 41 passes through the center of the connecting disk 24 and is detachably connected to the second protrusion 511 on the chassis 51.

[0068] like Figure 3 , Figure 4 and Figure 5 As shown, the tool base 5 includes a circular chassis 51 and a cylindrical tool holder 52; a second protrusion 511 and a third protrusion 512 are respectively provided at the center of both sides of the chassis 51; a second connecting hole is provided at the center of the second protrusion 511; a third connecting hole is provided at the center of the third protrusion 512; a first mounting groove 42 whose length direction is consistent with its axial direction is provided on the outer wall of the output shaft 41 of the reducer 4; a second mounting groove whose length direction is consistent with its axial direction is provided on the inner wall of the second connecting hole of the second protrusion 511; the output shaft 41 of the reducer 4 is detachably connected to the chassis 51 through the second connecting hole; one end of the tool holder 52 is coaxially connected to the side of the chassis 51 away from the driving assembly, and three pairs of parallel plates 53 are provided on the outer wall of the tool holder 52 around its circumference; each pair of parallel plates 53 is connected to the outer wall of the tool holder 52 and is perpendicularly connected to the same cutting surface, and its length direction is consistent with the axial direction of the tool holder 52; each pair of parallel plates 53 is respectively provided with at least one tightening bolt for tightening the corresponding tool 7.

[0069] A portion of the square key 6 is embedded in the first mounting groove 42 , and the other portion is embedded in the second mounting groove, so that the reducer and the tool base 5 can achieve transmission.

[0070] The cutters 7 include three and correspond to the three pairs of parallel plates 53 one by one. One end of each cutter 7 is clamped between the corresponding pair of parallel plates 53, and the other end faces away from the side wall of the cutter holder 52. One end of the cutter 7 is provided with a cutter slope 71.

[0071] The tool adjustment bracket 8 includes an adjustment ring 81, an adjustment foot 82 and an adjustment disk 83; the adjustment ring 81 is located at the other end of the tool holder 52 and is coaxially arranged with the axis of the tool holder 52; there are three adjustment feet 82, which correspond to the three tools 7 one by one, one end of each adjustment foot 82 is connected to the adjustment ring 81, and the other end is inserted between the corresponding tool 7 and the side wall of the tool holder 52 for sliding fit; a foot slope 84 is provided on the outer wall of the other end of each adjustment foot 82; the foot slope 84 and the tool slope 71 have the same inclination angle, and the two are in contact and fit to achieve the adjustment of the extension length of the tool 7; the adjustment disk 83 is located at the center of the adjustment ring 81, and three connecting rods 85 are provided between its circumferential outer wall and the inner wall of the adjustment ring 81; the three connecting rods 85 correspond to the three adjustment feet 82 one by one.

[0072] The adjusting bolt 9 is arranged at the center of the adjusting disk 83; the adjusting bolt 9 passes through the adjusting disk 83 and is threadedly connected to the inner wall of the third connecting hole on the chassis 51. The adjusting bolt 9 is adjusted to press the tool adjustment bracket 8, and the support foot inclined surface 84 on the adjusting support foot 82 pushes the tool inclined surface 71 on the tool 7 by contact. Since the axial movement of the tool 7 is limited by the chassis 51, it moves radially outward, and the reverse movement is the same. Therefore, the radial extension size of the tool 7 can be adjusted by the adjusting bolt 9, and after adjustment, it is tightened by the tightening bolt on the side of the parallel plate 53.

[0073] The outer cover 10 is sleeved outside the tool holder 52, and a notch 103 is provided on the side wall of the outer cover 10 for the other end of the tool 7 to extend out. Specifically, the outer cover 10 includes a cylindrical cover 101 and a conical cover 102 connected coaxially; the cylindrical cover 101 is sleeved outside the tool holder 52; one end of the cylindrical cover 101 away from the conical cover 102 is provided with three notches 103 for the tool 7 to extend out to grind the protrusions on the hole wall; the large end of the conical cover 102 is connected to the cylindrical cover 101, and a blind hole 104 is provided in the center of the small end thereof along the axial direction, so that a circular incision is formed at the small end of the conical cover 102, and the incision can be used to grind the larger protrusions on the hole wall when the device is lowered. The tool holder 52 is provided with three first protrusions 521 on its inner wall, and each of the first protrusions 521 is respectively located between two adjacent pairs of parallel plates 53; each of the first protrusions 521 is respectively provided with a first connecting hole 522; three connecting bolts 105 are passed through the bottom of the blind hole 104, and the three connecting bolts 105 respectively pass through the gap between two adjacent connecting rods 85 and are threadedly connected with the inner walls of the three first connecting holes 522, thereby fastening the outer cover 10 to the tool base 5.

[0074] The rock deep hole grinding device is based on the existing flexible long rod sensor bracket, and a grinding device with basically the same outer diameter as the flexible long rod sensor bracket is installed at the front end. The device uses a controllable motor with a reduced speed to drive the grinding tool to rotate and grind the protrusions in the rock deep hole. There are no sharp parts other than the tool to avoid secondary damage to the hole wall, and the tool can be telescopically adjusted along the radial direction to adapt to protrusions of different sizes; a conical guiding component is designed at the front end of the device to avoid secondary damage to the hole wall during the downward process of the device, and only the protrusions are ground, with a small workload; the entire device is small in size, not restricted by the surrounding construction environment, and can be used at any time. The operation is simple and efficient.

[0075] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A rock deep hole grinding device for a guided flexible long rod sensor bracket, characterized in that: It comprises a driving base (2) mounted on the front end of a flexible long rod sensor bracket (1), a driving component arranged in the driving base (2), a tool base (5) arranged at the action end of the driving component, a tool (7) and an outer cover (10) arranged on the tool base (5); The driving assembly is used to drive the tool base (5), the tool (7) and the outer cover (10) to rotate; The tool base (5) comprises a circular chassis (51) and a cylindrical tool holder (52); the center of the chassis (51) is detachably connected to the action end of the drive assembly; one end of the tool holder (52) is coaxially connected to the side of the chassis (51) away from the drive assembly, and N pairs of parallel plates (53) are arranged on the outer wall of the tool holder (52) around its circumference; each pair of parallel plates (53) is connected to the outer wall of the tool holder (52) and is perpendicular to the same cutting plane, and its length direction is consistent with the axial direction of the tool holder (52), and N is greater than or equal to 3; The cutting tools (7) include N pieces, and correspond one to one with the N pairs of parallel plates (53); one end of each cutting tool (7) is clamped between the corresponding pair of parallel plates (53), and the other end faces a direction away from the side wall of the tool holder (52); The outer cover (10) is sleeved on the outside of the tool holder (52), and a notch (103) is provided on the side wall of the outer cover (10) for the other end of the tool (7) to extend out.

2. The rock deep hole grinding device for the guided flexible long rod sensor bracket according to claim 1 is characterized in that: Also includes a tool adjustment bracket (8); One end of the tool (7) is provided with a tool slope (71); The tool adjustment bracket (8) comprises an adjustment ring (81), an adjustment foot (82) and an adjustment disc (83); The adjusting ring (81) is located at the other end of the tool holder (52) and is coaxially arranged with the tool holder (52); The adjusting legs (82) include N pieces, and correspond one to one with the N cutting tools (7); one end of each adjusting leg (82) is connected to the adjusting ring (81), and the other end is inserted between the corresponding cutting tool (7) and the side wall of the tool holder (52); and a leg inclined surface (84) is provided on the outer wall of the other end of each adjusting leg (82); The inclined surface (84) of the support foot and the inclined surface (71) of the tool have the same inclination angle, and the two are in contact and cooperate with each other to achieve adjustment of the length of the tool (7) extending out of the notch (103); The adjusting disc (83) is located at the center of the adjusting ring (81), and N connecting rods (85) are arranged between the circumferential outer wall of the adjusting disc and the inner wall of the adjusting ring (81); the N connecting rods (85) correspond to the N adjusting feet (82) one by one; An adjusting bolt (9) is provided at the center of the adjusting disk (83); the adjusting bolt (9) passes through the adjusting disk (83) and is threadedly connected to the chassis (51).

3. The rock deep hole grinding device for the guided flexible long rod sensor bracket according to claim 2 is characterized in that: The outer cover (10) comprises a cylindrical cover (101) and a conical cover (102) which are coaxially connected; The cylindrical cover (101) is sleeved outside the tool holder (52); The notch (103) is arranged at one end of the cylindrical cover (101) away from the conical cover (102); The large end of the conical cover (102) is connected to the cylindrical cover (101), and a blind hole (104) is provided in the center of the small end along the axial direction; N first protrusions (521) are provided on the inner wall of the tool holder (52), and each first protrusion (521) is located between two adjacent pairs of parallel plates (53); each first protrusion (521) is provided with a first connecting hole (522); N connecting bolts (105) are provided at the bottom of the blind hole (104), and the N connecting bolts (105) respectively pass through between two adjacent connecting rods (85) and are threadedly connected to the inner walls of the N first connecting holes (522).

4. The rock deep hole grinding device for the guided flexible long rod sensor bracket according to claim 3 is characterized in that: A second protrusion (511) and a third protrusion (512) are respectively provided at the centers of two sides of the chassis (51); A second connection hole is provided at the center of the second protrusion (511); A third connection hole is provided at the center of the third protrusion (512); The active end of the driving assembly is detachably connected to the chassis (51) via a second connecting hole; The adjusting bolt (9) is threadedly connected to the inner wall of the third connecting hole.

5. The rock deep hole grinding device for the guided flexible long rod sensor bracket according to claim 4 is characterized in that: The driving assembly comprises a driving motor (3) and a reducer (4); The driving motor (3) is connected to an external controller and a power source via a control cable (31) arranged inside the flexible long rod sensor bracket (1), and its driving shaft is connected to the input end of the reducer (4); The output shaft (41) of the reducer (4) extends into the second connection hole and is detachably connected to the second protrusion (511).

6. The rock deep hole grinding device for the guided flexible long rod sensor bracket according to claim 5 is characterized in that: Also includes a square key (6); The outer wall of the output shaft (41) is provided with a first mounting groove (42) whose length direction is consistent with the axial direction thereof; A second mounting groove is provided on the inner wall of the second connecting hole of the second protrusion (511), the length direction of which is consistent with the axial direction thereof; A portion of the square key (6) is embedded in the first installation groove (42), and another portion is embedded in the second installation groove.

7. The rock deep hole grinding device for the guided flexible long rod sensor bracket according to claim 6 is characterized by: Each pair of parallel plates (53) is provided with at least one tightening bolt for tightening the corresponding tool (7).

8. The rock deep hole grinding device for the guided flexible long rod sensor bracket according to claim 7 is characterized in that: The driving base (2) comprises a first connecting ring (21), a second connecting ring (22), and a plurality of connecting plates (23) uniformly connected between the first connecting ring (21) and the second connecting ring (22) in a circumferential direction; The first connecting ring (21) is sleeved inside the flexible long rod sensor bracket (1); A connecting disc (24) is provided at one end of the second connecting ring (22) away from the first connecting ring (21); The drive motor (3) is supported in a first connecting ring (21); the reducer (4) is supported in a second connecting ring (22), and its output shaft (41) passes through the center of the connecting disc (24) and is detachably connected to the first protrusion (511).

9. The rock deep hole grinding device for the guided flexible long rod sensor bracket according to claim 8 is characterized in that: A plurality of U-shaped frames (211) are provided on the inner wall of the first connecting ring (21); The U-shaped bottom of the U-shaped frame (211) is connected to the inner wall of the first connecting ring (21), and the open end thereof is used to support the outer wall of the driving motor (3).

10. The rock deep hole grinding device for the guided flexible long rod sensor bracket according to any one of claims 1 to 9, characterized in that: The flexible long rod sensor bracket (1) comprises a docking ring (11) and a plurality of flat steels (12); The docking ring (11) is sleeved on the outside of the driving base frame (2); The plurality of flat steels (12) are evenly arranged around the butt joint ring (11) in the circumferential direction; one end of each flat steel (12) is connected to the outer wall of the butt joint ring (11), and the other end extends to the outside of the deep rock hole to be repaired.

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