Drill boom transverse moving mechanism of drill jumbo

Abstract

The utility model relates to a drill boom transverse moving mechanism of a drill jumbo, and belongs to the technical field of drill jumbo. According to the technical scheme, an oil cylinder mounting seat is connected with the front end of a drill arm transverse moving connecting frame through a bolt, a cylinder rod of a drill arm transverse moving oil cylinder is hinged to one side of the front end of the drill arm transverse moving connecting frame, and the tail of the drill arm transverse moving oil cylinder is hinged to a drill arm transverse moving mechanism mounting seat through a hinged shaft; the rear end of the drill arm transverse moving connecting frame is hinged to a drill arm transverse moving mechanism mounting base through a drill arm transverse moving rotating shaft, and the drill arm transverse moving mechanism mounting base is mounted on a drill jumbo body. And the hinged shaft and the drill arm transverse moving rotating shaft are arranged on a drill arm transverse moving mechanism mounting seat which is horizontally arranged left and right. According to the invention, a secondary swing transverse moving mechanism is additionally arranged behind a left-right swing positioning mechanism consisting of a drill boom swing hydraulic spiral oil cylinder in the prior art, so that the transverse moving of the drill boom of the drill jumbo is realized, and slotting hole and core hole positioning operation in a small-section blasting driving construction environment is facilitated.

Description

Technical Field

[0001] The utility model relates to a drilling arm transverse movement mechanism of a rock drilling jumbo, belonging to the technical field of rock drilling jumbos. Background Art

[0002] A rock drilling jumbo is a rock drilling equipment used in tunneling and underground engineering construction by the drill and blast method. It can move and support multiple rock drills to perform drilling operations simultaneously. The propulsion device in the existing technology generally uses a rock drilling luffing mechanism. The propulsion beam orientation mechanism is arranged on the left and right vertical orientation mechanisms. The left and right vertical orientation mechanisms are arranged at the front end of the drilling arm. The drilling arm is provided with a pitching swing mechanism, an up and down swing positioning mechanism, and a left and right swing positioning mechanism. The left and right vertical orientation mechanisms are composed of a swing angle oil cylinder and a swing angle rotating shaft frame. The pitching swing mechanism is composed of a pitching rotating shaft and a pitching oil cylinder. The up and down swing positioning mechanism is composed of a drilling arm lifting oil cylinder and a drilling arm lifting rotating shaft. The left and right swing positioning mechanism is composed of a drilling arm swing hydraulic screw oil cylinder and an oil cylinder mounting seat. The oil cylinder mounting seat is mounted on the vehicle body of the rock drilling jumbo. For example: Chinese Patent CN201120051568.8 with the name "Multi-dimensional swing device of a rock drilling jumbo propeller", etc. The problems existing in the existing technology are: limited by the relatively large size space of the propulsion beam orientation mechanism, it is very difficult to operate in the small-section cut-and-blast construction environment. Especially when it is necessary to perform cut holes and core holes operations on a small area, since the drilling arm of the rock drilling jumbo cannot be transversely moved, it is difficult to complete the operation. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a drilling arm transverse movement mechanism of a rock drilling jumbo. Behind the left and right swing positioning mechanism composed of a drilling arm swing hydraulic screw oil cylinder in the existing technology, a secondary swing transverse movement mechanism is added to realize the transverse movement of the drilling arm of the rock drilling jumbo, facilitating the positioning operations of cut holes and core holes in the small-section cut-and-blast construction environment, and solving the above technical problems existing in the background art.

[0004] The technical solution of the utility model is as follows:

[0005] A boom transverse movement mechanism of a rock drilling jumbo. The propulsion beam orientation mechanism is arranged on the left and right vertical orientation mechanisms, and the left and right vertical orientation mechanisms are arranged at the front end of the boom. A pitching swing mechanism, an up and down swing positioning mechanism and a left and right swing positioning mechanism are arranged on the boom. The left and right positioning mechanisms include a boom swing hydraulic screw cylinder, and the boom swing hydraulic screw cylinder is arranged on an oil cylinder mounting seat. A secondary swing transverse movement mechanism is arranged behind the oil cylinder mounting seat. The secondary swing transverse movement mechanism includes a lower mounting seat, a boom transverse movement oil cylinder, a boom transverse movement connecting frame, a boom transverse movement rotating shaft and a boom transverse movement mechanism mounting seat. The oil cylinder mounting seat is connected to the front end of the boom transverse movement connecting frame by bolts. The piston rod of the boom transverse movement oil cylinder is hinged to one side of the front end of the boom transverse movement connecting frame, and the tail of the boom transverse movement oil cylinder is hinged to the boom transverse movement mechanism mounting seat through a hinge shaft. The rear end of the boom transverse movement connecting frame is hinged to the boom transverse movement mechanism mounting seat through the boom transverse movement rotating shaft. The boom transverse movement mechanism mounting seat is mounted on the vehicle body of the rock drilling jumbo. The hinge shaft and the boom transverse movement rotating shaft are arranged side by side on the horizontally arranged boom transverse movement mechanism mounting seat. The boom transverse movement rotating shaft is located on the center line of the boom transverse movement connecting frame. The hinge shaft is located on the left side of the center line of the boom transverse movement connecting frame. The hinged point of the piston rod of the boom transverse movement oil cylinder at the front end of the boom transverse movement connecting frame is located on the right side of the center line of the boom transverse movement connecting frame. The center line of the boom transverse movement oil cylinder is arranged obliquely relative to the center line of the boom transverse movement connecting frame, and the inclination angle of the center line of the boom transverse movement oil cylinder relative to the center line of the boom transverse movement connecting frame is A.

[0006] Further, a lower mounting seat is arranged below the oil cylinder mounting seat, and the oil cylinder mounting seat and the lower mounting seat are connected to the front end of the boom transverse movement connecting frame by bolts together.

[0007] Further, an oil cylinder earring is welded on the boom transverse movement connecting frame, and the piston rod of the boom transverse movement oil cylinder is hinged to the oil cylinder earring through a pin shaft.

[0008] Further, the oil cylinder earring is located on one side of the boom transverse movement connecting frame close to the oil cylinder mounting seat and the lower mounting seat, and the piston rod of the boom transverse movement oil cylinder is located between the oil cylinder mounting seat and the lower mounting seat.

[0009] When the piston rod of the boom transverse movement oil cylinder extends out, the front end of the boom transverse movement connecting frame is parallel to the vehicle body of the rock drilling jumbo, the center line of the boom transverse movement connecting frame coincides with the center line of the boom, and the propulsion beam orientation mechanism operates normally;

[0010] The cylinder rod of the drilling arm transverse movement oil cylinder retracts, driving the rear end of the drilling arm transverse movement connecting frame to swing rightward around the drilling arm transverse movement rotating shaft. The front end of the drilling arm transverse movement connecting frame and the oil cylinder mounting seat swing leftward around the drilling arm swing hydraulic screw oil cylinder, and the swing angle is A. The drilling arm transverse movement mechanism mounting seat is fixed on the vehicle body of the roadheader. The left and right positioning mechanisms mounted on the drilling arm transverse movement connecting frame are horizontally moved leftward, and the drilling arm and the advancing beam orientation mechanism are horizontally moved together. The horizontal movement distance is K. After the horizontal movement, the advancing beam orientation mechanism completes the operation, meeting the positioning operation requirements of the cut holes and the center cut holes in the narrow working section.

[0011] The horizontal movement distance K of the advancing beam orientation mechanism is related to the inclination angle A of the center line of the drilling arm transverse movement oil cylinder relative to the center line of the drilling arm transverse movement connecting frame and the distance H between the center of the drilling arm swing hydraulic screw oil cylinder and the drilling arm transverse movement rotating shaft. The larger A and H are, the larger the horizontal movement distance K is.

[0012] Positive effects of the present utility model: Behind the left and right swing positioning mechanism composed of the drilling arm swing hydraulic screw oil cylinder in the existing technology, a secondary swing and transverse movement mechanism is added to realize the transverse movement of the drilling arm of the roadheader, facilitating the positioning operations of the cut holes and the center cut holes in the small-section blasting tunneling construction environment. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model;

[0014] Figure 2 It is a schematic structural diagram of the state where the cylinder rod of the drilling arm transverse movement oil cylinder of the embodiment of the present utility model extends;

[0015] Figure 3 It is a schematic structural diagram of the state where the cylinder rod of the drilling arm transverse movement oil cylinder of the embodiment of the present utility model retracts;

[0016] In the figure: advancing beam orientation mechanism 1, swing angle oil cylinder 2, swing angle rotating shaft frame 3, pitching rotating shaft 4, pitching oil cylinder 5, drilling arm 6, drilling arm lifting oil cylinder 7, drilling arm lifting rotating shaft 8, drilling arm swing hydraulic screw oil cylinder 9, oil cylinder mounting seat 10, lower mounting seat 11, drilling arm transverse movement oil cylinder 12, drilling arm transverse movement connecting frame 13, drilling arm transverse movement rotating shaft 14, drilling arm transverse movement mechanism mounting seat 15, hinge shaft 16, bolt 17, oil cylinder earring 18, pin shaft 19. Detailed Embodiments

[0017] The following further describes the present utility model through embodiments in conjunction with the drawings.

[0018] Combined with the attached Figures 1-3, this embodiment provides a boom transverse movement mechanism for a rock drilling jumbo. The propulsion beam orientation mechanism 1 is arranged on the left and right vertical orientation mechanisms, and the left and right vertical orientation mechanisms are arranged at the front end of the boom 6. A pitching swing mechanism, an up and down swing positioning mechanism, and a left and right swing positioning mechanism are arranged on the boom 6. The left and right positioning mechanisms include a boom swing hydraulic screw cylinder 9, and the boom swing hydraulic screw cylinder 9 is arranged on the cylinder mounting seat 10. A secondary swing transverse movement mechanism is arranged behind the cylinder mounting seat 10. The secondary swing transverse movement mechanism includes a lower mounting seat 11, a boom transverse movement cylinder 12, a boom transverse movement connecting frame 13, a boom transverse movement rotating shaft 14, and a boom transverse movement mechanism mounting seat 15. The cylinder mounting seat 10 is connected to the front end of the boom transverse movement connecting frame 13 through a bolt 17. The rod of the boom transverse movement cylinder 12 is hinged to one side of the front end of the boom transverse movement connecting frame 13, and the tail of the boom transverse movement cylinder 12 is hinged to the boom transverse movement mechanism mounting seat 15 through a hinge shaft 16. The rear end of the boom transverse movement connecting frame 13 is hinged to the boom transverse movement mechanism mounting seat 15 through the boom transverse movement rotating shaft 14. The boom transverse movement mechanism mounting seat 15 is mounted on the vehicle body of the rock drilling jumbo; the hinge shaft 16 and the boom transverse movement rotating shaft 14 are arranged side by side horizontally on the boom transverse movement mechanism mounting seat 15. The boom transverse movement rotating shaft 14 is located on the center line of the boom transverse movement connecting frame 13, and the hinge shaft 16 is located on the left side of the center line of the boom transverse movement connecting frame 13. The hinge point of the rod of the boom transverse movement cylinder 12 at the front end of the boom transverse movement connecting frame 13 is located on the right side of the center line of the boom transverse movement connecting frame 13. The center line of the boom transverse movement cylinder 12 is arranged obliquely relative to the center line of the boom transverse movement connecting frame 13, and the inclination angle of the center line of the boom transverse movement cylinder 12 relative to the center line of the boom transverse movement connecting frame 13 is A.

[0019] The lower mounting seat 11 is arranged below the cylinder mounting seat 10, and the cylinder mounting seat 10 and the lower mounting seat 11 are connected to the front end of the boom transverse movement connecting frame 13 together through a bolt 17.

[0020] An oil cylinder earring 18 is welded on the boom transverse movement connecting frame 13, and the rod of the boom transverse movement cylinder 12 is hinged to the oil cylinder earring 18 through a pin shaft 19.

[0021] The oil cylinder earring 18 is located on the side of the boom transverse movement connecting frame 13 close to the cylinder mounting seat 10 and the lower mounting seat 11, and the rod of the boom transverse movement cylinder 12 is located between the cylinder mounting seat 10 and the lower mounting seat 11.

[0022] When the rod of the boom transverse movement cylinder 12 extends, the front end of the boom transverse movement connecting frame 13 is parallel to the vehicle body of the rock drilling jumbo, the center line of the boom transverse movement connecting frame 13 coincides with the center line of the boom 6, and the propulsion beam orientation mechanism operates normally;

[0023] The rod of the drilling arm transverse movement oil cylinder 12 retracts, driving the rear end of the drilling arm transverse movement connecting frame 13 to swing rightward around the drilling arm transverse movement rotating shaft 14. The front end of the drilling arm transverse movement connecting frame 13 and the oil cylinder mounting seat 10 swing leftward around the drilling arm swing hydraulic screw oil cylinder 9, and the swing angle is A. The drilling arm transverse movement mechanism mounting seat 15 is fixed on the vehicle body of the rock drilling jumbo. The left and right positioning mechanisms mounted on the drilling arm transverse movement connecting frame 13 are transversely moved leftward. The drilling arm 6 and the advancing beam orientation mechanism are transversely moved together, and the transverse movement distance is K. After the transverse movement, the advancing beam orientation mechanism completes the operation, meeting the positioning operation requirements of the cut holes and core holes for blasting in a narrow working section.

[0024] The transverse movement distance K of the advancing beam orientation mechanism is related to the inclination angle A of the center line of the drilling arm transverse movement oil cylinder 12 relative to the center line of the drilling arm transverse movement connecting frame 13 and the distance H between the center of the drilling arm swing hydraulic screw oil cylinder 9 and the drilling arm transverse movement rotating shaft 14. The larger A and H are, the larger the transverse movement distance K is.

[0025] In the embodiment, a thruster is provided on the advancing beam orientation mechanism 1. Both the advancing beam orientation mechanism 1 and the thruster are well-known and commonly used devices in the art. The rock drilling jumbo performs cut hole operations in a small-section blasting excavation construction environment with a height of 2.4 meters and a width of 2.2 meters or less.

[0026] The left and right positioning mechanisms include the drilling arm swing hydraulic screw oil cylinder 9. The drilling arm swing hydraulic screw oil cylinder 9 is arranged on the oil cylinder mounting seat 10, and a secondary swing transverse movement mechanism is arranged behind the oil cylinder mounting seat 10.

[0027] The left and right vertical orientation mechanism consists of a swing angle oil cylinder 2 and a swing angle rotating shaft frame 3. The advancing beam orientation mechanism 1 is arranged on the swing angle rotating shaft frame 3. The swing angle rotating shaft frame 3 is arranged on the drilling arm 6. The swing angle oil cylinder 2 arranged on the drilling arm 6 is drivingly connected to the advancing beam orientation mechanism 1, and the swing angle oil cylinder 2 drives the advancing beam orientation mechanism 1 to swing around the swing angle rotating shaft frame 3. The left and right vertical orientation mechanism is used to adjust the vertical state between the advancing beam orientation mechanism 1 and the rock wall of the working face left and right, and compensate for the vertical angle of the advancing beam orientation mechanism 1 after the left and right swing positioning mechanism is adjusted.

[0028] The pitching swing mechanism consists of a pitching rotating shaft 4 and a pitching oil cylinder 5. The pitching rotating shaft 4 is arranged between the swing angle rotating shaft frame 3 and the drilling arm 6. The pitching oil cylinder 5 arranged on the drilling arm 6 is drivingly connected to the swing angle rotating shaft frame 3, driving the swing angle rotating shaft frame 3 to swing up and down relative to the drilling arm 6 around the pitching rotating shaft 4, and adjusting the pitching position of the advancing beam orientation mechanism 1.

[0029] The up-and-down swing positioning mechanism consists of a drill arm lifting oil cylinder 7 and a drill arm lifting rotating shaft 8. The drill arm lifting rotating shaft 8 is arranged between the drill arm 6 and the drill arm swing hydraulic screw cylinder 9 of the left and right positioning mechanism. The drill arm lifting oil cylinder 7 arranged on the drill arm swing hydraulic screw cylinder 9 is drivingly connected to the drill arm 6 to adjust the up-and-down position of the propulsion beam orientation mechanism 1.

[0030] The front end of the drill arm transverse movement connecting frame 13 is a bent structure, and the rear ends of the oil cylinder mounting seat 10 and the lower mounting seat 11 are both bent structures. The bent structure of the drill arm transverse movement connecting frame 13 is fixedly connected to the bent structures of the oil cylinder mounting seat 10 and the lower mounting seat 11 through bolts 17.

[0031] The specific operation steps of this embodiment:

[0032] Through the telescopic movement of the swing angle oil cylinder 2, a swing movement of the propulsion beam orientation mechanism 1 around the swing angle rotating shaft frame 3 is formed, which is used for the left and right orientation of the thruster and adjusts the perpendicularity to the rock wall.

[0033] Through the telescopic movement of the pitch rotating shaft 4, a pitch swing movement of the swing angle rotating shaft frame 3 around the pitch rotating shaft 4 relative to the drill arm 6 is formed, which is used for the pitch orientation of the thruster.

[0034] Through the telescopic movement of the drill arm lifting oil cylinder 7, an up-and-down swing movement of the drill arm 6 around the drill arm lifting rotating shaft 8 relative to the drill arm swing hydraulic screw cylinder 9 is formed, which is used for the up-and-down position positioning of the thruster.

[0035] The drill arm swing hydraulic screw cylinder 9 is a hydraulic swing screw cylinder. It drives the drill arm 6 to make a left and right swing movement around the center of the drill arm swing hydraulic screw cylinder 9 through the drill arm lifting rotating shaft 8, which is used for the left and right position positioning of the thruster.

[0036] Through the telescopic movement of the drill arm transverse movement oil cylinder 12, it drives the drill arm transverse movement connecting frame 13 and other components installed on the drill arm transverse movement connecting frame 13 to deflect and swing on the horizontal plane around the drill arm transverse movement rotating shaft 14, forming a swing movement of the drill arm transverse movement connecting frame 13 around the drill arm transverse movement rotating shaft 14 relative to the drill arm transverse movement mechanism mounting seat 15. The swing angle is A, so that the drill arm 6 and the thruster form a transverse movement in the left and right directions. Through the position change generated by the transverse movement, it meets the positioning operation requirements of the blasting cut holes in the narrow working section.

Claims

1. A drilling boom lateral movement mechanism for a rock drilling trolley, wherein a propulsion beam orientation mechanism (1) is arranged on a left-right vertical orientation mechanism, the left-right vertical orientation mechanism is arranged at the front end of a drilling boom (6), a pitch swing mechanism, an up-and-down swing positioning mechanism and a left-and-right swing positioning mechanism are arranged on the drilling boom (6), the left-and-right swing positioning mechanism comprises a drilling boom swing hydraulic screw cylinder (9), the drilling boom swing hydraulic screw cylinder (9) is arranged on a cylinder mounting seat (10), and the characteristics are: A secondary swing transverse movement mechanism is arranged behind the cylinder mounting seat (10), and the secondary swing transverse movement mechanism comprises a lower mounting seat (11), a drill arm transverse movement cylinder (12), a drill arm transverse movement connecting frame (13), a drill arm transverse movement rotating shaft (14) and a drill arm transverse movement mechanism mounting seat (15). The cylinder mounting seat (10) is connected to the front end of the drill arm transverse movement connecting frame (13) by means of bolts (17). The cylinder rod of the drill arm transverse movement cylinder (12) is hinged to one side of the front end of the drill arm transverse movement connecting frame (13). The rear end of the drill arm transverse movement cylinder (12) is hinged to the drill arm transverse movement mechanism mounting seat (15) by means of a hinge shaft (16). The rear end of the drill arm transverse movement connecting frame (13) is hinged to the drill arm transverse movement mechanism mounting seat (15) by means of a drill arm transverse movement rotating shaft (14). The mounting seat (15) is mounted on the body of the drilling trolley; the hinge shaft (16) and the drill arm transverse movement shaft (14) are arranged in a left-right arrangement on the horizontally arranged drill arm transverse movement mechanism mounting seat (15); the drill arm transverse movement shaft (14) is located on the center line of the drill arm transverse movement connecting frame (13); the hinge shaft (16) is located on the left side of the center line of the drill arm transverse movement connecting frame (13); the hinge point of the cylinder rod of the drill arm transverse movement oil cylinder (12) at the front end of the drill arm transverse movement connecting frame (13) is located on the right side of the center line of the drill arm transverse movement connecting frame (13); the center line of the drill arm transverse movement oil cylinder (12) is arranged obliquely relative to the center line of the drill arm transverse movement connecting frame (13); and the inclination angle of the center line of the drill arm transverse movement oil cylinder (12) relative to the center line of the drill arm transverse movement connecting frame (13) is A.

2. A drilling rig arm traverse mechanism according to claim 1, characterized in that: A lower mounting seat (11) is arranged below the oil cylinder mounting seat (10), and the oil cylinder mounting seat (10) and the lower mounting seat (11) are connected to the front end of the drill arm transverse connecting frame (13) through bolts (17).

3. A drilling rig arm traverse mechanism according to claim 1 or 2, characterized in that: A cylinder earring (18) is welded to the drill arm transverse movement connecting frame (13), and a cylinder rod of the drill arm transverse movement cylinder (12) is hinged to the cylinder earring (18) via a pin shaft (19).

4. A drilling rig arm transverse movement mechanism according to claim 3, characterized in that: The cylinder earring (18) is located on one side of the drill arm transverse movement connecting frame (13) close to the cylinder mounting seat (10) and the lower mounting seat (11), and the cylinder rod of the drill arm transverse movement cylinder (12) is located between the cylinder mounting seat (10) and the lower mounting seat (11).

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