An arm rotation device and method for transferring drill rods and anchor rods

Abstract

The present invention relates to an arm rotating device and method for transferring drill rods and anchor rods, belonging to the technical field of tunnel rock drilling jumbo. The technical solution is as follows: The rotating combined shaft mechanism is a rotatable combined shaft. The front drill rod holder (4-7) and the drill rod arm (4-14) are parallel to each other and vertically arranged on the combined shaft. The ends of the front drill rod holder (4-7) and the drill rod arm (4-14) are both provided with drill rod clamps, which respectively clamp the two ends of the drill rod (8). The first anchor rod arm (4-3) and the second anchor rod arm (4-5) are parallel to each other and vertically arranged on the combined shaft. The ends of the first anchor rod arm (4-3) and the second anchor rod arm are both provided with anchor rod clamps, which respectively clamp the two ends of the anchor rod (5). The beneficial effects of the present invention are as follows: The drill rod and the anchor rod are alternately transferred and rotated in the narrow space of the tunnel anchor rod jumbo. One rock drill is used to complete the hole drilling and the installation of the anchor rod, and the conversion between the drill rod and the anchor rod is automatically realized, improving the work efficiency and reducing the labor intensity.

Description

Technical Field

[0001] The invention relates to an arm rotating device and method for transferring a drill rod and an anchor rod, belonging to the technical field of tunnel drilling trolleys. Background Art

[0002] Anchoring technology is widely used in tunnel construction and underground mining. During the anchoring operation, a rock drill is required to drill holes and install anchor rods. Generally, two rock drills are used. One rock drill is installed with a drill rod and is responsible for drilling holes. After drilling the anchor rod hole, the rock drill leaves and another rock drill is used to install the anchor rod in the anchor rod hole. Since the space for tunnel construction and underground mining is very narrow, using two rock drills to work alternately takes up a large space, is inconvenient to operate, and increases equipment investment. Alternatively, a rock drill is used. After drilling a hole with a drill rod, the drill rod on the rock drill is manually replaced with an anchor rod to complete the installation of the anchor rod. Manually and continuously adding drill rods and anchor rods to the anchor rod trolley alternately is poor in economy, takes a long time, has low efficiency, and has high labor intensity, which increases construction costs.

[0003] If a rock drill is used to automatically replace the drill rod on the rock drill with an anchor rod, the above-mentioned problems existing in the prior art can be completely solved. Even if the existing rock drill uses a conversion joint device to automatically convert the drill rod and the anchor rod, to achieve the conversion between the drill rod and the anchor rod, the drill rod and the anchor rod must be alternately transferred and rotated in the narrow space of the tunnel anchor rod trolley. The prior art does not have a suitable arm rotation device to alternately transfer and rotate the drill rod and the anchor rod, making it very difficult to automatically replace the drill rod on a rock drill with the anchor rod. How to alternately transfer and rotate the drill rod and the anchor rod is a technical problem that needs to be solved in this field. Summary of the invention

[0004] The purpose of the present invention is to provide an arm rotation device and method for transferring drill rods and anchor rods, which can alternately transfer and rotate the drill rods and anchor rods in the narrow space of a tunnel anchor rod trolley, use a rock drill to complete drilling and installing anchor rods, automatically realize the conversion between the drill rod and the anchor rod, improve work efficiency, reduce labor intensity, and solve the above-mentioned technical problems existing in the prior art.

[0005] The technical solution of the present invention is:

[0006] An arm rotating device for transferring drill rods and anchor rods, comprising a rotating combined shaft mechanism, a front drill rod holder, a drill rod arm, a first anchor rod arm and a second anchor rod arm. The rotating combined shaft mechanism is a rotatable combined shaft. The front drill rod holder and the drill rod arm are parallel to each other and are vertically arranged on the rotatable combined shaft. The front drill rod holder is a structure with a central hole. A drill rod clamp is provided at the end of the drill rod arm. The central hole and the drill rod clamp respectively sleeve and clamp the two ends of the drill rod. The first anchor rod arm and the second anchor rod arm are parallel to each other and are arranged on the rotatable combined shaft. Anchor rod clamps are provided at the ends of the first anchor rod arm and the second anchor rod arm respectively, and clamp the two ends of the anchor rod. The arm rotating device for transferring drill rods and anchor rods is used in matching with a rock drill. Through the rotation of the combined shaft of the rotating combined shaft mechanism, the front drill rod holder, the drill rod arm, the first anchor rod arm and the second anchor rod arm installed on the rotatable combined shaft rotate synchronously, transferring the drill rod and the anchor rod to a predetermined position, so that the drill rod or the anchor rod is respectively matched with the output end of the rock drill, realizing that a single rock drill completes drilling and installing the anchor rod.

[0007] The rotating combined shaft mechanism comprises a tension sleeve, a first arm rotating cylinder, a support shaft, an anchor rod arm connecting pipe and a second arm rotating cylinder. The first arm rotating cylinder, the support shaft, the anchor rod arm connecting pipe and the second arm rotating cylinder are arranged in sequence on the same axis to form a rotatable combined shaft. The output end of the first arm rotating cylinder is connected to one end of the support shaft. The support shaft passes through the anchor rod arm connecting pipe and is connected to the fixed end of the second arm rotating cylinder. The output end of the second arm rotating cylinder is connected to the anchor rod arm connecting pipe. The first arm rotating cylinder drives the support shaft to rotate. The front drill rod holder and the drill rod arm are respectively connected to the support shaft and rotate with the support shaft. The support shaft drives the second arm rotating cylinder to rotate synchronously. The second arm rotating cylinder drives the anchor rod arm connecting pipe to rotate. The first anchor rod arm and the second anchor rod arm are respectively hinged on the anchor rod arm connecting pipe and rotate with the anchor rod arm connecting pipe.

[0008] The support shaft is provided with a connecting plate. A sliding rod that can move along the axial direction of the support shaft is arranged inside the connecting plate. The front end of the sliding rod is provided with the front drill rod holder, and the central hole on the front drill rod holder always sleeves the front end of the drill rod. A drill rod arm is provided at the rear end of the support shaft. The drill rod arm can be folded along the axial direction of the support shaft under the action of the rock drill. When the drill rod drills a hole, the drill rod clamp at the front end of the drill rod arm loosens the drill rod, and after the hole is drilled, the drill rod clamp clamps the drill rod. The sliding rod can move along the axial direction of the support shaft under the action of the rock drill. The other end of the sliding rod is provided with a rear impact rod. An air spring is arranged between the front drill rod holder and the connecting plate.

[0009] The front drill rod holder is installed inside the connecting plate and is a sliding structure with the connecting plate. It always maintains axial parallelism with the support shaft. The central hole at the front of the front drill rod holder always sleevs the drill rod, always maintains axial parallelism with the drill rod, and can slide axially with the drill rod. Under the action of the rock drill, it can move back and forth along the axial direction of the rotating shaft; the drill rod arm is hinged to the support shaft through a tension sleeve. The drill rod arm can be folded as the rock drill moves forward and is in a state parallel to the rotatable combined shaft. At the same time, the drill rod clamp on the drill rod arm leaves the drill rod; an arm support is provided on the drill rod arm, and the arm support on the drill rod arm matches the rear impact rod on the sliding rod; after the drilling hole is completed, as the rock drill moves backward, the rear impact rod hits the arm support on the drill rod arm, stands up the fallen drill rod arm support, and the drill rod clamp on the drill rod arm clamps the drill rod again.

[0010] The first bolt arm and the second bolt arm are connected by a connecting rod. The connecting rod is a telescopic rod. Under the action of the rock drill pushing the bolt forward, the first bolt arm and the second bolt arm are laid down in sequence, and the bolt clamps on the first bolt arm and the second bolt arm are separated from the bolt in sequence, and the rock drill installs the bolt; after the bolt installation is completed, under the action of the rock drill retreating, the first bolt arm and the second bolt arm stand up in sequence, and the bolt clamps on the first bolt arm and the second bolt arm clamp the next waiting bolt in sequence.

[0011] The support shaft is connected to the dial hand, and the dial hand obtains the power of rotation from other mechanisms (such as the bolt and drill rod conversion joint device).

[0012] Both ends of the rotatable combined shaft mechanism are provided with a front support and a rear support, and the front support and the rear support are fixed on the bolt bin of the tunnel bolt trolley.

[0013] The bolt bin is an annular cylinder, and a plurality of bolts are arranged on the inner wall of the annular cylinder of the bolt bin. The bolt bin is arranged on the orienting body, and a slideway is provided on the orienting body. The rock drill moves on the slideway. The rock drill, the slideway and the drill rod are arranged in the bolt bin, and the bolt, the slideway and the drill rod are all arranged along the central axis direction of the annular cylinder of the bolt bin; a joint conversion device is provided at the output shaft end of the rock drill, and the alternate conversion of the drill rod and the bolt on the rock drill is realized through the joint conversion device.

[0014] A method for a tunnel bolt trolley to transfer drill rods and bolts uses the above-mentioned arm rotating device to realize the alternate transfer and rotation of drill rods and bolts.

[0015] The specific steps are as follows:

[0016] After the drilling is completed, the rock drill retreats to the bottommost position. As the rock drill moves backward, it drives the drill rod mounted on the rock drill to retreat backward. While the drill rod retreats backward, it drives the front drill rod support to move backward. As the front drill rod support moves backward, the gas spring is compressed. At the same time, it drives the rear impact rod mounted at the tail of the sliding rod to move backward and start contacting the arm support mounted on the drill rod arm. Until the rock drill retreats to the bottommost position, the arm support straightens the drill rod arm. At this time, the drill rod clamp on the drill rod arm clamps the rear end of the drill rod, and the central hole on the front drill rod support always sleeves the front end of the drill rod. At this time, start the impact valve of the rock drill to loosen the connection thread between the output end of the rock drill and the drill rod. At the same time, the rock drill rotates in reverse. As the rock drill rotates in reverse, the gas spring mounted between the support shaft and the front drill rod support starts to release and extend. During the extension of the gas spring, it will drive the front drill rod support to move forward. During the forward movement of the front drill rod support, it will drive the drill rod to move forward until the connection thread between the drill rod and the output end of the rock drill is completely separated. At this time, rotate the arm rotation cylinder one clockwise to drive the support shaft to rotate. The support shaft drives the telescopic front drill rod support and the drill rod arm to hold the drill rod and rotate clockwise at the same time. During the rotation, the dial hand rotates with the support shaft at the same time. The arm rotation cylinder two continues to rotate, driving the bolt arm connecting pipe and the bolt arms one and two to hold the bolt and rotate at the same time. At this time, push the rock drill forward and turn on the rotation of the rock drill, so that the output end of the rock drill rotates and advances forward, and is combined with the bolt through the joint. As the rock drill continues to advance forward, the installation of the bolt is completed.

[0017] During the reciprocating movement of the rock drill along the slideway, all the arms: bolt arm one, bolt arm two and drill rod arm can either fold and separate from the grabbed object or be fully opened and in the grabbing state. Since the sliding front drill rod support is completely brought to the end by the drill rod, at the same time, the gas spring is compressed, and the sliding front drill rod support drives the rear impact rod to move backward at the same time, pushing open the drill rod arm.

[0018] The beneficial effects of the present invention are: in the narrow space of the tunnel bolt trolley, the drill rod and the bolt are alternately transferred and rotated. One rock drill is used to complete the drilling and the installation of the bolt, automatically realizing the conversion between the drill rod and the bolt, improving the work efficiency and reducing the labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall view of the usage environment of the present invention;

[0020] Figure 2 It is a three-dimensional schematic diagram of the present invention;

[0021] Figure 3 It is a partial enlarged schematic diagram of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the present invention;

[0023] Figure 5 Stereogram of the present invention;

[0024] Figure 6 Schematic structural diagram of the anchor rod arm of the present invention after being pushed down;

[0025] Figure 7 Schematic structural diagram of the drill rod arm of the present invention after being pushed down;

[0026] Figure 8 Schematic diagram of the initial positions of the drill rod and the anchor rod arm of the present invention;

[0027] Figure 9 Schematic diagram of the drill rod being opened of the present invention;

[0028] Figure 10 Schematic diagram of the arm being pushed down of the present invention;

[0029] In the figure: rock drill 1, joint conversion device 2, anchor rod bin 3, arm rotation device 4, anchor rod 5, slideway 6, orientation body 7, drill rod 8, propulsion oil cylinder 9, compensation oil cylinder 10, limit plate 11, output shaft of the rock drill 1-1, plug-in card slot 1-3, rocker arm 2-5, front support 4-1, anchor rod arm one 4-3, connecting rod 4-4, anchor rod arm two 4-5, tension sleeve 4-6, front drill rod holder 4-7, arm rotation cylinder one 4-8, gas spring 4-9, support shaft 4-10, anchor rod arm connecting pipe 4-11, rear impact rod 4-12, arm rotation cylinder two 4-13, drill rod arm 4-14, rear support 4-15, pusher 4-16, connecting plate 4-17, slide bar 4-18, drill rod holder support 4-19. Specific embodiments

[0030] The present invention will be further described below with reference to the accompanying drawings through embodiments.

[0031] An arm rotating device for transferring drill rods and anchor rods, comprising a rotating combined shaft mechanism, a front drill rod holder 4-7, a drill rod arm 4-14, a first anchor rod arm 4-3 and a second anchor rod arm 4-5. The rotating combined shaft mechanism is a rotatable combined shaft. The front drill rod holder 4-7 and the drill rod arm 4-14 are parallel to each other and are vertically arranged on the rotatable combined shaft. The front drill rod holder 4-7 is a structure with a central hole. A drill rod clamp is provided at the end of the drill rod arm 4-14. The central hole and the drill rod clamp respectively sleeve and clamp the two ends of the drill rod 8. The first anchor rod arm 4-3 and the second anchor rod arm 4-5 are parallel to each other and are arranged on the rotatable combined shaft. Anchor rod clamps are provided at the ends of the first anchor rod arm 4-3 and the second anchor rod arm 4-5 respectively, and clamp the two ends of the anchor rod 5. The arm rotating device for transferring drill rods and anchor rods is used in matching with a rock drill 1. Through the rotation of the combined shaft of the rotating combined shaft mechanism, the front drill rod holder 4-7, the drill rod arm 4-14, the first anchor rod arm 4-3 and the second anchor rod arm 4-5 installed on the rotatable combined shaft rotate synchronously, transferring the drill rod 8 and the anchor rod 5 to a predetermined position, and making the drill rod 8 or the anchor rod 5 respectively match with the output end 1-1 of the rock drill, so as to realize a rock drill to complete drilling and installing the anchor rod.

[0032] The rotating combined shaft mechanism comprises a tension sleeve 4-6, a first arm rotating cylinder 4-8, a support shaft 4-10, an anchor rod arm connecting pipe 4-11 and a second arm rotating cylinder 4-13. The first arm rotating cylinder 4-8, the support shaft 4-10, the anchor rod arm connecting pipe 4-11 and the second arm rotating cylinder 4-13 are arranged in sequence on the same axis to form a rotatable combined shaft. The output end of the first arm rotating cylinder 4-8 is connected to one end of the support shaft 4-10. The support shaft 4-10 passes through the anchor rod arm connecting pipe 4-11 and is connected to the fixed end of the second arm rotating cylinder 4-13. The output end of the second arm rotating cylinder 4-13 is connected to the anchor rod arm connecting pipe 4-11. The first arm rotating cylinder 4-8 drives the support shaft 4-10 to rotate. The front drill rod holder 4-7 and the drill rod arm 4-14 are respectively connected to the support shaft 4-10 and rotate with the support shaft 4-10. The support shaft 4-10 drives the second arm rotating cylinder 4-13 to rotate synchronously. The second arm rotating cylinder 4-13 drives the anchor rod arm connecting pipe 4-11 to rotate. The first anchor rod arm 4-3 and the second anchor rod arm 4-5 are respectively hinged on the anchor rod arm connecting pipe 4-11 and rotate with the anchor rod arm connecting pipe 4-11.

[0033] The support shaft 4-10 is provided with a connecting plate 4-17. A slide rod 4-18 that can move along the axial direction of the support shaft 4-10 is arranged inside the connecting plate 4-17. A front drill rod holder 4-7 is provided at the front end of the slide rod 4-18. The central hole on the front drill rod holder 4-7 always sleevs the front end of the drill rod 8. A drill rod arm 4-14 is provided at the rear end of the support shaft 4-10. The drill rod arm 4-14 can be folded along the axial direction of the support shaft 4-10 under the action of the rock drill 1. When the drill rod 8 drills a hole, the drill rod clamp at the front end of the drill rod arm 4-14 loosens the drill rod 8. After the hole is drilled, the drill rod clamp clamps the drill rod 8. The slide rod 4-18 can move along the axial direction of the support shaft 4-10 under the action of the rock drill 1. A rear striker 4-12 is provided at the other end of the slide rod 4-18. A gas spring 4-9 is provided between the front drill rod holder 4-7 and the connecting plate 4-17.

[0034] The front drill rod holder 4-7 is installed inside the connecting plate 4-17 and is a sliding structure with the connecting plate 4-17, and always maintains axial parallelism with the support shaft 4-10. The central hole at the front of the front drill rod holder 4-7 always sleevs the drill rod 8, and always maintains axial parallelism with the drill rod 8, and can slide axially with the drill rod 8, and can move back and forth along the axial direction of the rotating shaft under the action of the rock drill 1. The drill rod arm 4-14 is hinged to the support shaft 4-10 through a tension sleeve 4-6. The drill rod arm 4-14 can be folded as the rock drill 1 moves forward, and is in a state parallel to the rotatable combined shaft. At the same time, the drill rod clamp on the drill rod arm 4-14 leaves the drill rod 8. An arm support 4-19 is provided on the drill rod arm 4-14. The arm support 4-19 on the drill rod arm 4-14 matches the rear striker 4-12 on the slide rod 4-18. After the hole is drilled, as the rock drill 1 moves backward, the rear striker 4-12 hits the arm support 4-19 on the drill rod arm 4-14, supports the fallen drill rod arm 4-14 to stand up, and the drill rod clamp on the drill rod arm 4-14 clamps the drill rod 8 again.

[0035] The first anchor rod arm 4-3 and the second anchor rod arm 4-5 are connected by a connecting rod 4-4. The connecting rod 4-4 is a telescopic rod. Under the action of the rock drill 1 pushing the anchor rod 5 forward, the first anchor rod arm 4-3 and the second anchor rod arm 4-5 are laid down in sequence, and the anchor rod clamps on the first anchor rod arm 4-3 and the second anchor rod arm 4-5 are separated from the anchor rod 5 in sequence, and the rock drill 1 installs the anchor rod. After the anchor rod installation is completed, under the action of the rock drill 1 retreating, the first anchor rod arm 4-3 and the second anchor rod arm 4-5 stand up in sequence, and the anchor rod clamps on the first anchor rod arm 4-3 and the second anchor rod arm 4-5 clamp the next waiting anchor rod in sequence.

[0036] The support shaft 4-10 is connected to a dial 4-16. The dial 4-16 obtains the power of rotation from other mechanisms (such as an anchor rod and drill rod conversion joint device).

[0037] Both ends of the rotating combined shaft mechanism are provided with a front support 4-1 and a rear support 4-15, and the front support 4-1 and the rear support 4-15 are fixed on the bolt bin 3 of the tunnel bolt rig.

[0038] The bolt bin 3 is an annular cylinder, and a plurality of bolts 5 are arranged on the inner wall of the annular cylinder of the bolt bin 3. The bolt bin 3 is arranged on the orienting body 7, and a slideway 6 is provided on the orienting body 7. The rock drill 1 moves on the slideway 6. The rock drill 1, the slideway 6 and the drill rod 8 are arranged in the bolt bin 3. The bolts 5, the slideway 6 and the drill rod 8 are all arranged along the central axis direction of the annular cylinder of the bolt bin 3. A joint conversion device 2 is provided at the output shaft end of the rock drill 1, and the alternation conversion between the drill rod 8 and the bolt 5 on the rock drill 1 is realized through the joint conversion device 2.

[0039] A method for a tunnel bolt rig to transfer the drill rod and the bolt uses the above-mentioned arm rotating device to realize the alternate transfer and rotation of the drill rod and the bolt.

[0040] The specific steps are as follows:

[0041] After the drilling is completed, the rock drill 1 retracts to the bottommost position. As the rock drill 1 moves backward, the drill rod 8 installed on the rock drill 1 also moves backward. While the drill rod 8 moves backward, it drives the front drill rod support 4-7 to move backward, compressing the gas spring 4-9 as the front drill rod support 4-7 moves backward. At the same time, it drives the rear impact rod 4-12 installed at the tail of the slide bar 4-18 to move backward and start contacting the arm support 4-19 installed on the drill rod arm 4-14. When the rock drill retracts to the bottommost position, the arm support 4-19 straightens the drill rod arm 4-14. At this time, the drill rod clamp on the drill rod arm clamps the rear end of the drill rod 8, and the central hole on the front drill rod support 4-7 always sleeves the front end of the drill rod 8. At this time, start the impact valve of the rock drill to loosen the connection thread between the output end 1-1 of the rock drill and the drill rod 8. At the same time, the rock drill 1 rotates in reverse. As the rock drill rotates in reverse, the gas spring 4-9 installed between the support shaft 4-10 and the front drill rod support 4-7 starts to release and extend. During the extension of the gas spring 4-9, it drives the front drill rod support 4-7 to move forward. During the forward movement of the front drill rod support 4-7, it drives the drill rod 8 to move forward until the connection thread between the drill rod 8 and the output end 1-1 of the rock drill is completely separated. At this time, rotate the arm rotation cylinder one 4-8 clockwise to drive the support shaft 4-10 to rotate. The support shaft 4-10 drives the telescopic front drill rod support 4-7 and the drill rod arm 4-14 to hold the drill rod 8 and rotate clockwise at the same time. During the rotation, the dial hand 4-16 rotates with the support shaft 4-10 at the same time. The arm rotation cylinder two 4-13 continues to rotate, driving the anchor rod arm connecting pipe 4-11, the anchor rod arm one 4-3, and the anchor rod arm two 4-5 to hold the anchor rod 5 and rotate at the same time. Then push the rock drill 1 forward and turn on the rotation of the rock drill, so that the output end 1-1 of the rock drill rotates and advances forward, and is combined with the anchor rod 5 through the joint. As the rock drill 1 continues to advance forward, the installation of the anchor rod is completed.

[0042] During the reciprocating movement of the rock drill 1 along the slideway 6, all the arms: the anchor rod arm one 4-3, the anchor rod arm two 4-5, and the drill rod arm 4-14 can be folded and separated from the grasped object, and can also be fully opened and in the grasping state. Since the sliding front drill rod support 4-7 is completely brought to the end by the drill rod 8, at the same time, it compresses the gas spring 4-9, and the sliding front drill rod support 4-7 also drives the rear impact rod 4-12 to move backward, pushing open the drill rod arm 4-14.

[0043] In the embodiment, the specific steps are as follows:

[0044] After the drilling is completed, the rock drill 1 retracts to the bottommost position. As the rock drill 1 moves backward, it starts to push the rocker arm 2-5 of the drill rod and the anchor rod adapter. Until the rock drill 1 retracts to the bottommost position, at this time, the adapter moves forward to exceed the foremost end of the output end 1-1 of the rock drill. As the rock drill 1 retracts backward, it drives the drill rod 8 installed on the rock drill 1 to retract backward. While the drill rod 8 retracts backward, it drives the front drill rod support 4-7 to move backward. As the front drill rod support 4-7 moves backward, it compresses the gas spring 4-9. At the same time, it drives the rear impact rod 4-12 installed at the tail of the slide rod 4-18 to move backward and start to contact the arm support 4-19 installed on the drill rod arm 4-14. Until the rock drill retracts to the bottommost position, the arm support 4-19 straightens the drill rod arm 4-14. At this time, the drill rod clamp on the drill rod arm clamps the rear end of the drill rod 8, and the central hole on the front drill rod support 4-7 always sleeves the front end of the drill rod 8. At this time, start the impact valve of the rock drill to loosen the connection thread between the output end 1-1 of the rock drill and the drill rod 8. At the same time, the rock drill 1 rotates in reverse. As the rock drill rotates in reverse, at this time, the gas spring 4-9 installed between the support shaft 4-10 and the front drill rod support 4-7 starts to release and extend. During the extension of the gas spring 4-9, it will drive the front drill rod support 4-7 to move forward. During the forward movement of the front drill rod support 4-7, it will drive the drill rod 8 to move forward until the connection thread between the drill rod 8 and the output shaft 1-1 of the rock drill is completely separated; At this time, rotate the arm rotation cylinder one 4-8 clockwise to drive the support shaft 4-10 to rotate. The support shaft 4-10 drives the telescopic front drill rod support 4-7 and the drill rod arm 4-14 to hold the drill rod 8 and rotate clockwise by 51° at the same time. During the rotation, the dial hand 4-16 rotates with the support shaft 4-10 at the same time. At the same time, through the dial hand 4-16, it dials the rocker arm 2-5 to drive the adapter to rotate counterclockwise, so that the adapter and the output end 1-1 of the rock drill are on the same central axis. At this time, the arm rotation cylinder two 4-13 continues to rotate 51°, driving the anchor rod arm connecting pipe 4-11 and the anchor rod arm one 4-3 and the anchor rod arm two 4-5 to hold the anchor rod 5 and rotate at the same time. At this time, the output end 1-1 of the rock drill, the adapter and the anchor rod 5 are on the same central axis at the same time. Then push the rock drill 1 forward and turn on the rotation of the rock drill to make the output end 1-1 of the rock drill rotate and move forward. As the rock drill 1 moves forward, it drives the adapter to exert force backward until the tail of the adapter is inserted into the threaded hole inside the output end 1-1 of the rock drill. As the output end 1-1 of the rock drill rotates and advances, the adapter and the plug-in slot 1-3 on the output end 1-1 of the rock drill coincide, completing the action of driving the adapter to rotate by the output end 1-1 of the rock drill; At this time, the rock drill 1 drives the adapter to continue to move forward to complete the combination of the adapter and the anchor rod 5; As the rock drill 1 continues to move forward, the installation of the anchor rod is completed.

[0045] In the initial position, the drill rod 8 is installed on the rock drill 1. The first anchor rod 5 is located on the barrel wall of the anchor rod bin 3. The angle between the anchor rod 5 and the drill rod 8 is 102°. The support shaft 4-10 drives the telescopic front drill rod holder 4-7 and the drill rod arm 4-14 to hold the drill rod 8. At the same time, after rotating 51° clockwise, the arm rotation cylinder two 4-13 continues to rotate 51°, and the overall rotation is 102°. The first anchor rod 5 is installed on the rock drill 1, and the drill rod 8 leaves the rock drill 1. After the first anchor rod is installed, after rotating 51° counterclockwise, the arm rotation cylinder two 4-13 continues to rotate 51°, and the overall counterclockwise rotation is 102°. The drill rod returns to the initial position (installed on the rock drill and continues to drill holes). The anchor rod bin 3 moves the second anchor rod to the original position of the first anchor rod to facilitate the continuous grasping of the second anchor rod, and so on.

[0046] During the reciprocating movement of the rock drill 1 along the slideway 6, all the arms: the anchor rod arm one 4-3, the anchor rod arm two 4-5 and the drill rod arm 4-14 are fully opened and in the grasping state. Since the sliding front drill rod holder 4-7 is completely carried to the end by the drill rod 8, at the same time, the gas spring 4-9 is compressed, and the sliding front drill rod holder 4-7 drives the rear impact rod 4-12 to move backward at the same time, pushing open the drill rod arm 4-14.

Claims

1. An arm rotating device for transferring drill rods and anchor rods, characterized in that: It includes a rotating combined shaft mechanism, a front drill rod holder (4-7), a drill rod arm (4-14), a first anchor arm (4-3) and a second anchor arm (4-5). The rotating combined shaft mechanism is a rotatable combined shaft. The front drill rod holder (4-7) and the drill rod arm (4-14) are parallel to each other and are vertically arranged on the rotatable combined shaft. The front drill rod holder (4-7) is a structure with a central hole. The end of the drill rod arm (4-14) is provided with a drill rod clamp. The central hole and the drill rod clamp respectively sleeve and clamp the two ends of the drill rod (8). The first anchor arm (4-3) and the second anchor arm (4-5) are parallel to each other and are arranged on the rotatable combined shaft. The ends of the first anchor arm (4-3) and the second anchor arm (4-5) are both provided with anchor clamps, which respectively clamp the two ends of the anchor rod (5). By the rotation of the combined shaft of the rotating combined shaft mechanism, the front drill rod holder (4-7), the drill rod arm (4-14), the first anchor arm (4-3) and the second anchor arm (4-5) installed on the rotatable combined shaft rotate synchronously, and the drill rod (8) and the anchor rod (5) are transferred to the predetermined positions, so that the drill rod (8) or the anchor rod (5) respectively matches with the output end (1-1) of the rock drill, realizing that one rock drill completes drilling and installing the anchor rod; The rotating combined shaft mechanism includes a shrink disc (4-6), a first arm rotating cylinder (4-8), a support shaft (4-10), an anchor arm connecting pipe (4-11) and a second arm rotating cylinder (4-13). The first arm rotating cylinder (4-8), the support shaft (4-10), the anchor arm connecting pipe (4-11) and the second arm rotating cylinder (4-13) are arranged in sequence on the same axis to form a rotatable combined shaft. The output end of the first arm rotating cylinder (4-8) is connected to one end of the support shaft (4-10). The support shaft (4-10) passes through the anchor arm connecting pipe (4-11) and is connected to the fixed end of the second arm rotating cylinder (4-13). The output end of the second arm rotating cylinder (4-13) is connected to the anchor arm connecting pipe (4-11). The first arm rotating cylinder (4-8) drives the support shaft (4-10) to rotate. The front drill rod holder (4-7) and the drill rod arm (4-14) are respectively connected to the support shaft (4-10) and rotate with the support shaft (4-10). The support shaft (4-10) drives the second arm rotating cylinder (4-13) to rotate synchronously. The second arm rotating cylinder (4-13) drives the anchor arm connecting pipe (4-11) to rotate. The first anchor arm (4-3) and the second anchor arm (4-5) are respectively hinged on the anchor arm connecting pipe (4-11) and rotate with the anchor arm connecting pipe (4-11); The first rock bolt arm (4-3) and the second rock bolt arm (4-5) are connected by a connecting rod (4-4). The connecting rod (4-4) is a telescopic rod. Under the action of the rock drill (1) pushing the rock bolt (5) forward, the first rock bolt arm (4-3) and the second rock bolt arm (4-5) are laid down in sequence, and the rock bolt clamps on the first rock bolt arm (4-3) and the second rock bolt arm (4-5) are separated from the rock bolt (5) in sequence. Then the rock drill (1) installs the rock bolt. After the rock bolt installation is completed, under the action of the rock drill (1) retracting, the first rock bolt arm (4-3) and the second rock bolt arm (4-5) stand up in sequence, and the rock bolt clamps on the first rock bolt arm (4-3) and the second rock bolt arm (4-5) clamp the next waiting rock bolt in sequence.

2. The arm rotating device for transferring drill rods and anchor rods according to claim 1, characterized in that: The support shaft (4-10) is provided with a connecting plate (4-17). A sliding rod (4-18) that can move along the axial direction of the support shaft (4-10) is arranged inside the connecting plate (4-17). A front drill rod holder (4-7) is arranged at the front end of the sliding rod (4-18), and the central hole on the front drill rod holder (4-7) always sleeves the front end of the drill rod (8); a drill rod arm (4-14) is arranged at the rear end of the support shaft (4-10). The drill rod arm (4-14) can be folded along the axial direction of the support shaft (4-10) under the action of the rock drill (1). When the drill rod (8) drills into the hole, the drill rod clamp at the front end of the drill rod arm (4-14) loosens the drill rod (8). After the hole drilling is completed, the drill rod clamp clamps the drill rod (8); the sliding rod (4-18) can move along the axial direction of the support shaft (4-10) under the action of the rock drill (1); a rear striker (4-12) is arranged at the other end of the sliding rod (4-18); a gas spring (4-9) is arranged between the front drill rod holder (4-7) and the connecting plate (4-17).

3. The arm rotation device for transferring drill rods and anchor rods according to claim 2, characterized in that: The front drill rod holder (4-7) is installed inside the connecting plate (4-17) and is a sliding structure with the connecting plate (4-17), and always keeps axial parallel with the support shaft (4-10). The central hole at the front part of the front drill rod holder (4-7) always sleeves the drill rod (8), and always keeps axial parallel with the drill rod (8), and can slide axially with the drill rod (8), and can move back and forth along the axial direction of the rotating shaft under the action of the rock drill (1); the drill rod arm (4-14) is hinged to the support shaft (4-10) through a tension sleeve (4-6). The drill rod arm (4-14) can be folded as the rock drill (1) moves forward, and is in a state parallel to the rotatable combined shaft. At the same time, the drill rod clamp on the drill rod arm (4-14) leaves the drill rod (8); an arm support (4-19) is arranged on the drill rod arm (4-14), and the arm support (4-19) on the drill rod arm (4-14) matches the rear striker (4-12) on the sliding rod (4-18); after the hole drilling is completed, as the rock drill (1) moves backward, the rear striker (4-12) hits the arm support (4-19) on the drill rod arm (4-14), supports the laid-down drill rod arm (4-14) to stand up, and the drill rod clamp on the drill rod arm (4-14) clamps the drill rod (8) again.

4. An arm rotation device for transferring drill rods and anchor rods according to claim 1 or 2, characterized in that: Both ends of the rotating combined shaft mechanism are provided with a front support (4-1) and a rear support (4-15), and the front support (4-1) and the rear support (4-15) are fixed on the bolt bin (3) of the tunnel bolt jumbo.

5. The arm rotation device for transferring drill rods and anchor rods according to claim 4, characterized in that: The bolt bin (3) is an annular cylinder, and a plurality of bolts (5) are arranged on the inner wall of the annular cylinder of the bolt bin (3). The bolt bin (3) is arranged on the orienting body (7), and a slideway (6) is provided on the orienting body (7). The rock drill (1) moves on the slideway (6). The rock drill (1), the slideway (6) and the drill rod (8) are arranged in the bolt bin (3). The bolts (5), the slideway (6) and the drill rod (8) are all arranged along the central axis direction of the annular cylinder of the bolt bin (3). A joint conversion device (2) is provided at the output shaft end of the rock drill (1), and the alternation between the drill rod (8) and the bolt (5) on the rock drill (1) is realized through the joint conversion device (2).

6. A method for a tunnel bolt jumbo to transfer the drill rod and the bolt, which uses the arm rotating device according to any one of claims 1-5 to realize the alternate transfer and rotation of the drill rod and the bolt.

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