One-arm multi-hole drilling rig drilling mechanism

Abstract

A drilling mechanism of a one-arm multi-hole drilling rig, a supporting arm is penetrated with a rotating shaft, the supporting arm and the rotating shaft are respectively connected to a first supporting seat, the propulsion end of a first propulsion mechanism provided on the first supporting seat is connected to a first supporting platform; a supporting sleeve is fixed to the outside of the supporting arm, a supporting shaft is passed through the supporting sleeve, a second supporting seat is connected to the supporting shaft, the propulsion end of a second propulsion mechanism provided on the second supporting seat is connected to a second supporting platform; each supporting platform is equipped with a group of drill rods with drill chucks and a power device, and the power device and the matching drill rods form a transmission relationship. After the drilling mechanism is combined with the relevant devices of the mining drilling rig, drill bits are installed on each group of drill chucks on the first supporting platform, and holes can be drilled on the arched top wall of the tunnel at the same time, so that multiple countersunk holes can be drilled at one time; anchor rods are installed on each group of drill chucks on the second supporting platform, and the anchor rods can be pushed into the drilled countersunk holes.

Description

Technical Field

[0001] The invention relates to a drilling device, in particular to a drilling mechanism of a one-arm multi-hole drilling rig. Background Art

[0002] The top of the tunnel in the mine needs to be installed with anchor rods, anchor cables and support nets. Before installing the anchor rods, anchor cables and support nets, it is necessary to drill holes in the top wall of the tunnel. At present, drilling holes in the top wall of the tunnel and installing support nets, anchor rods and anchor cables are carried out separately. The existing mining drilling rigs only have the drilling function and can only drill one hole in the top wall of the tunnel at a time. Therefore, there are shortcomings such as low work efficiency and high installation cost. Summary of the invention

[0003] The purpose of the present invention is to provide a drilling mechanism of a one-arm multi-hole drill rig, which, when combined with relevant devices of a mining drill rig, forms a one-arm multi-hole drill rig, which can drill multiple holes on the top wall of a tunnel at one time and can install anchor rods.

[0004] To achieve the above object, the present invention adopts the following scheme:

[0005] A drilling mechanism of a multi-hole drilling rig with one arm, a rotating shaft is inserted into a hollow supporting arm, a first supporting seat is connected to the supporting arm and the rotating shaft respectively, a first propulsion mechanism is arranged on the first supporting seat, and a propulsion end of the first propulsion mechanism is connected to a first supporting platform;

[0006] A support sleeve is fixed on the outside of the support arm, a support shaft rotatably matched with the support sleeve is installed on the support sleeve, a second support seat is connected to the support shaft, a second propulsion mechanism is arranged on the second support seat, and a propulsion end of the second propulsion mechanism is connected to the second support platform;

[0007] A group of drill rods are installed on the first supporting platform and the second supporting platform. A drill chuck is installed at the front end of each drill rod. Each group of drill rods is equipped with more than one power device, and the power device and the matched drill rods form a transmission relationship.

[0008] When the drilling mechanism provided by the above scheme is combined with the relevant devices of the mining drill, the supporting arm and the rotating shaft are connected to the transmission device of the drilling rig, and the supporting shaft is connected to the driving device of the drilling rig. By controlling the transmission device, the following actions can be achieved: the supporting arm and the rotating shaft can rotate in the same angle in the same direction or in the opposite direction, and the supporting arm and the rotating shaft can rotate separately; by controlling the driving device, the following actions can be achieved: the supporting shaft enters the supporting sleeve or withdraws from the supporting sleeve, and when the supporting shaft and the supporting sleeve are in a matched state, the supporting shaft rotates relative to the supporting sleeve.

[0009] Under the conditions that the drilling mechanism can realize the above-mentioned action, the following drilling process can be realized: drill bits are installed on each group of drill chucks on the first supporting platform, and the power device and the first propulsion mechanism are started. Each drill bit can drill holes in the arched top wall of the tunnel at the same time, so as to drill multiple countersunk holes at one time; anchor rods are installed on each group of drill chucks on the second supporting platform, and the power device and the second propulsion mechanism are started to push the anchor rods into the drilled countersunk holes.

[0010] The present invention has a reasonable structure and reliable performance. After being combined with relevant devices of a mining drill, it can drill multiple holes at one time and ensure that the drilled countersunk holes are perpendicular to the top surface of the tunnel, thereby providing a guarantee for the installation quality of anchor rods and anchor cables. It can also realize continuous operations of drilling holes and installing anchor rods, thereby greatly improving operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0012] Figure 2 for Figure 1 A top view of

[0013] Figure 3 for Figure 1 A-A section view;

[0014] Figure 4 for Figure 1 B-B section view;

[0015] Figure 5 for Figure 4 Enlarged view of part C;

[0016] Figure 6 for Figure 1 Bottom view of

[0017] Figure 7 for Figure 6 D-D section view. DETAILED DESCRIPTION

[0018] The present invention is further described below with reference to the embodiments and the accompanying drawings.

[0019] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5

[0020] In the drilling mechanism of the one-arm multi-hole drilling rig provided by the present invention, a rotating shaft 2 is inserted into a hollow supporting arm 1, and a first supporting seat 5 is connected to the supporting arm 1 and the rotating shaft 2 respectively. A first propulsion mechanism 6 is provided on the first supporting seat 5, and a propulsion end of the first propulsion mechanism is connected to a first supporting platform 7.

[0021] In this embodiment, the first propulsion mechanism is a group of two, and the first propulsion mechanism has a first cylinder 6a, a second cylinder 6b and a third cylinder 6c, which are combined to form a two-stage oil cylinder structure, and the upper end of the third cylinder 6c is connected to the first supporting platform 7. A hollow support rod 24 and a fourth cylinder 23 are inserted into the third cylinder 6c, and the support rod 24 cooperates with the sealing member 6d on the third cylinder 6c. The lower end of the fourth cylinder 23 extends between the support rod 24 and the third cylinder 6c, and the upper end of the fourth cylinder 23 passes through the first supporting platform 7. The fourth cylinder 23 cooperates with the sealing head 24a at the upper end of the support rod 24, and the upper end of the fourth cylinder 23 is connected to an elastic support body 8. The lower ends of the first cylinder 6a and the support rod 24 are fixed to the first supporting seat 5, and the first supporting seat 5 is provided with a first oil inlet 5a and a second oil inlet 5b, and the first oil inlet 5a and the second oil inlet 5b are communicated with the inner cavity of the first cylinder 6a and the support rod 24 respectively.

[0022] A support sleeve 22 is fixed to the outside of the support arm 1, and a support shaft 11 is installed on the support sleeve 22 for rotation therewith. The support shaft 11 is connected to a second support seat 10, and a second propulsion mechanism is installed on the second support seat 10. The propulsion end of the second propulsion mechanism is connected to a second support platform 13.

[0023] In this embodiment, the second propulsion mechanism is a group of two, and the second propulsion mechanism is a secondary oil cylinder 9. The cylinder body of the secondary oil cylinder 9 is fixed on the second support seat 10, and the front end of the piston rod of the secondary oil cylinder 9 is connected to the second support platform 13.

[0024] A group of drill rods are mounted on the first supporting platform 7 and the second supporting platform 13. A drill chuck is mounted on the front end of each drill rod. Each group of drill rods is equipped with one or more power devices, and the power device and the matched drill rods form a transmission relationship.

[0025] In this embodiment, a group of drill rods are installed on the first supporting platform 7 and the second supporting platform 13, each of which has two active drill rods 20 and two passive drill rods 15. The front ends of each active drill rod 20 and passive drill rod 15 are respectively equipped with drill chucks 18 and drill chucks 16. Each group of drill rods is equipped with two power devices, which are hydraulic motors 21. The rotating shaft of each hydraulic motor 21 is connected to an active drill rod 20. Each active drill rod 20 is equipped with a driving pulley 19, and each passive drill rod 15 is equipped with a passive pulley 14. The driving pulley 19 on each pair of adjacent active drill rods and the passive pulley 14 on the passive drill rod are equipped with a transmission belt 17. When the drilling mechanism is combined with the relevant devices of the mining drill, the hydraulic motor 21 is connected to the hydraulic system equipped with the mining drill.

[0026] See also Figure 1 , Figure 4 , Figure 6 , Figure 7

[0027] In this embodiment, the support arm 1 is connected to the first support seat 5 through the first connection seat 3, the first connection seat 3 has a first through hole 3a, the support arm 1 has a second through hole 1a that communicates with the first through hole 3a, the rotating shaft 2 is connected to the first support seat 5 through the second connection seat 4, and the second connection seat 4 passes through the first through hole 3a and the second through hole 1a. The above structure can ensure that when the support arm 1 and the rotating shaft 2 rotate, the first connection seat 3 and the second connection seat 4 will not interfere with each other.

[0028] See also Figure 1 , Figure 2 , Figure 4 , Figure 5

[0029] In this embodiment, the elastic support body 8 comprises a bottom plate 8a and an arched support plate 8b, the support plate 8b is connected to the upper end surface of the bottom plate 4a, and the upper end of the fourth cylinder 23 is connected to the support plate 8b.

[0030] See also Figures 1 to 5

[0031] When the drilling mechanism is combined with relevant devices of a mining drill, the supporting arm 1 and the rotating shaft 2 are connected to the transmission device equipped with the mining drill, the supporting shaft 12 is connected to the driving device equipped with the mining drill, the first oil inlet 5a and the second oil inlet 5b are connected to the hydraulic system equipped with the mining drill, the secondary oil cylinder 9 is connected to the hydraulic system equipped with the mining drill, and the hydraulic motor 21 is connected to the hydraulic system equipped with the mining drill.

[0032] By manipulating the transmission device, the following actions can be achieved: the support arm 1 and the rotating shaft 2 rotate in opposite directions or at the same angle, and the support arm 1 and the rotating shaft 2 rotate separately; by manipulating the driving device, the following actions can be achieved: the support shaft 11 enters the support sleeve 22 or withdraws from the support sleeve 22, and when the support shaft 11 and the support sleeve 22 are in a matched state, the support shaft 11 can rotate relative to the support sleeve 22.

[0033] When the hydraulic system supplies oil to the second oil inlet 5b, the fourth cylinder 23 drives the support body 8 to move upward until the support body 8 moves to and stops against the top wall of the tunnel; when the hydraulic system supplies oil to the first oil inlet 5a, the third cylinder 6c moves upward first, and then the second cylinder 6b and the third cylinder 6c move upward together, thereby driving the first supporting platform 7 to move upward.

[0034] When the support shaft 11 is withdrawn from the support sleeve 22, the two groups of first propulsion mechanisms 6 are opened at the same angle, and a support net is placed on each support body 8. By moving the support body 8 upward, the support net can be pressed against the top wall of the tunnel by the support body 8. After the support net is pressed against the top wall of the tunnel and the support body 8 stops moving, the two groups of drill rods on the two first support platforms 7 are started. During the process of the two groups of first propulsion mechanisms pushing the two support platforms 7 upward, the drill bits installed on the drill chucks at the front end of each drill rod can achieve drilling. In addition, when drilling is performed in a state where the two groups of first propulsion mechanisms have the same angle with the vertical direction, the reaction force received by the support arm during drilling can be offset, thereby ensuring stable drilling. After drilling is completed, oil is returned to the hydraulic system through the second oil inlet 5b and the first oil inlet 5a, and the load is unloaded, and the support body 8 and the first support platform 7 can fall back.

[0035] After the drilling is completed under the propulsion of the two groups of first propulsion mechanisms, a group of support bodies 8 and the first support platform 7 connected to the support arm 1 are made to fall back, and the support arm 1 is rotated at an angle to make room for the drilling, so that the other group of support bodies 8 connected to the rotating shaft 2 are still kept in a state of pressing the support net, and then the support shaft 11 is made to enter the support sleeve 22, and the support shaft 11 is rotated again, so that a group of secondary oil cylinders 9 connected to the support shaft 11 enter the space made room, and the anchor rod is installed in the drill chuck on the second support platform 13, and the hydraulic system supplies oil to the secondary oil cylinder 9, and the piston rod of the secondary oil cylinder 9 can push the second support platform 7 After the above process is completed, the support body 8 and the support platform 7 connected to the rotating shaft 2 are lowered, and the above anchor installation process is repeated again to complete the installation of the anchor and the support net. In addition, the drill bits are installed in the drill chucks on the second support platform 13 to drill holes in the tunnel top wall.

Claims

1. One-arm multi-hole drilling rig drilling mechanism, characterized by: A rotating shaft is inserted into a hollow supporting arm, the supporting arm and the rotating shaft are respectively connected to a first supporting seat, a first propulsion mechanism is provided on the first supporting seat, and a propulsion end of the first propulsion mechanism is connected to a first supporting platform; A support sleeve is fixed on the outside of the support arm, a support shaft is installed on the support sleeve to rotate with it, a second support seat is connected to the support shaft, a second propulsion mechanism is arranged on the second support seat, a propulsion end of the second propulsion mechanism is connected to the second support platform, and the second propulsion mechanism is a two-stage oil cylinder; A set of drill rods are installed on the first supporting platform and the second supporting platform, and a drill chuck is installed at the front end of each drill rod. Each set of drill rods is equipped with one or more power devices, and the power device and the matched drill rods form a transmission relationship. The drill bit is installed on the drill chuck on the first supporting platform, and the anchor rod or drill bit is installed on the drill chuck on the second supporting platform; The support arm is connected to the first support seat through the first connection seat, the first connection seat has a first through hole, the support arm has a second through hole communicating with the first through hole, the rotating shaft is connected to the first support seat through the second connection seat, and the second connection seat passes through the first through hole and the second through hole; When the drilling mechanism of the one-arm multi-hole drill rig is combined with the relevant devices of the mining drill rig, the supporting arm and the rotating shaft are connected to the transmission device equipped with the mining drill rig, and the supporting shaft is connected to the driving device equipped with the mining drill rig. By controlling the transmission device, the supporting arm and the rotating shaft are rotated separately, and the driving device is controlled to make the supporting shaft enter the supporting sleeve or withdraw from the supporting sleeve. When the supporting shaft and the supporting sleeve are in a matched state, the supporting shaft can rotate relative to the supporting sleeve.

2. The one-arm multi-hole drilling rig drilling mechanism according to claim 1, characterized in that: The first propulsion mechanism is a group of two. The first propulsion mechanism has a first cylinder, a second cylinder and a third cylinder. The three are combined to form a two-stage oil cylinder structure. The upper end of the third cylinder is connected to the first supporting platform. A hollow support rod and a fourth cylinder are inserted into the third cylinder. The support rod cooperates with the sealing member on the third cylinder. The lower end of the fourth cylinder extends between the support rod and the third cylinder, and the upper end passes through the first supporting platform. The fourth cylinder cooperates with the sealing head at the upper end of the support rod. The upper end of the fourth cylinder is connected to an elastic support body. The lower ends of the first cylinder and the support rod are fixed to the first supporting seat. The first supporting seat is provided with a first oil inlet and a second oil inlet. The first oil inlet and the second oil inlet are respectively communicated with the inner cavity of the first cylinder and the support rod.

3. The one-arm multi-hole drilling rig drilling mechanism according to claim 1, characterized in that: The second propulsion mechanism is composed of two in a group. The cylinder body of the secondary oil cylinder is fixed on the second supporting seat, and the front end of the piston rod of the secondary oil cylinder is connected to the second supporting platform.

4. The one-arm multi-hole drilling rig drilling mechanism according to claim 1, characterized in that: There are four drill rods installed on the first supporting platform and the second supporting platform. Two of the drill rods are active drill rods and two are passive drill rods in each group. A drill chuck is installed at the front end of each active drill rod and passive drill rod respectively. Each group of drill rods is equipped with two power devices, which are hydraulic motors. The rotating shaft of each hydraulic motor is connected to an active drill rod. A driving pulley is installed on each active drill rod, and a driven pulley is installed on each driven drill rod. A transmission belt is installed on the driving pulley on each pair of adjacent active drill rods and the driven pulley on the driven drill rod.

5. The one-arm multi-hole drilling rig drilling mechanism according to claim 2, characterized in that: The elastic supporting body comprises a bottom plate and an arched supporting plate, the supporting plate is connected to the upper end surface of the bottom plate, and the upper end of the fourth cylinder is connected to the supporting plate.

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