CN216894305U

CN216894305U - Righting mechanism for drill rod assembly of drilling machine and drilling machine

Info

Publication number: CN216894305U
Application number: CN202220795888.2U
Authority: CN
Inventors: 刘展廷
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-07-05
Anticipated expiration: 2032-04-07

Abstract

The utility model relates to a centering mechanism for a drill rod assembly of a drilling machine and the drilling machine, wherein the centering mechanism comprises a centering frame, a centering chain wheel and a centering plate, a centering hole is formed in the centering plate, a chain channel for a driving side of a lifting chain to pass through and a sliding block or a roller wheel group matched with a lifting track are arranged on the centering frame, a centering chain is arranged on the side wall of a lifting beam close to the drill rod assembly side, one side of the centering chain wheel is meshed with the driving side of the lifting chain, and the other side of the centering chain wheel is meshed with the centering chain. The drilling machine comprises a lifting beam, a drill rod assembly and a lifting mechanism, and further comprises the centering mechanism for the drill rod assembly of the drilling machine. The utility model utilizes the righting mechanism to guide, limit and support the drill rod, avoids the deviation of the drill rod in the operation process, ensures the accuracy of the drill rod, improves the operation stability and the durability of the drill rod, reduces the maintenance frequency of the drilling machine, reduces the maintenance cost of the drilling machine and improves the working efficiency of the drilling machine.

Description

Righting mechanism for drill rod assembly of drilling machine and drilling machine

Technical Field

The utility model relates to engineering machinery, in particular to a centering mechanism for a drill rod assembly of a drilling machine and the drilling machine adopting the centering mechanism.

Background

With the increasing investment of cities in the field of infrastructure construction, the demand of corresponding infrastructure construction engineering machinery is also increased continuously, and particularly, the demand of construction drilling rigs for tunnel construction, subway construction and the like is exponentially increased. Most of the existing excavation tunnels, subways and the like are excavated manually by adopting one person and one chiseling machine, so that the excavation efficiency is extremely low, the labor intensity of workers is high, the labor cost is high, and the problem of construction safety is solved.

The drilling machine comprises a lifting beam, a drill rod assembly and a lifting mechanism, wherein the drill rod assembly moves up and down along the lifting beam under the action of the lifting mechanism, the drilling machine is unpowered and supplies power to the drilling machine by virtue of an excavator hydraulic system, but the drill rod of the drill rod assembly of the drilling machine has a certain length, and a part for guiding and limiting the drill rod in operation is not arranged on the drilling machine, so that the drill rod assembly is easy to deform after being used for a long time, the service life of the drill rod assembly is shortened, the drilling machine needs to be maintained frequently, and the maintenance cost is high.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides the centering mechanism for the drill rod assembly of the drilling machine and the drilling machine, which have simple structure, guide and limit the rod part of the drill rod assembly of the drilling machine, improve the operation accuracy of the drill rod assembly and avoid the deformation of the drill rod assembly and prolong the service life of the drill rod assembly.

The technical scheme for solving the technical problems is as follows: the utility model provides a rig is righting mechanism for drilling rod assembly, the rig includes compensating beam, drilling rod assembly and hoist mechanism, be equipped with the lifting rail on the compensating beam, hoist mechanism is including the promotion chain that is used for driving the drilling rod assembly to go up and down along the compensating beam, including righting the frame, setting up the sprocket and the board of righting on righting the frame, it is equipped with the hole of righting that supplies the drilling rod of drilling rod assembly to pass through on the board to right, right be equipped with on the frame supply promote the drive side of chain pass through the chain passageway and with promote track complex slider or roller train, be equipped with on the lateral wall of compensating beam and right the chain, right one side of sprocket with the drive side meshing of promoting the chain, the opposite side with right the chain meshing.

The beneficial effects of the utility model are: one side of a righting chain wheel of the righting mechanism is meshed with a righting chain fixedly arranged on the lifting beam, the other side of the righting chain wheel of the righting mechanism is meshed with a driving side of a lifting chain of the drill rod assembly, the movement ratio of the drill rod assembly to the righting mechanism is about 2:1, namely the lifting stroke of the righting mechanism is half of the lifting stroke of the drill rod assembly, on one hand, the righting mechanism meets the requirement of righting the drill rod in operation to avoid deformation, on the other hand, the righting mechanism does not need to participate in the whole lifting action of the drill rod assembly, and therefore the energy consumption of a drilling machine can be further reduced. In a word, the utility model has simple structure and convenient installation and adjustment, can not only guide and limit the drill rod to ensure the accuracy of the drill rod, but also play a certain supporting role in the action process of the drill rod to prevent the drill rod from deviating in the drilling process, improve the operation stability of the drill rod and the durability of the drill rod, and reduce the maintenance cost of the drilling machine.

On the basis of the technical scheme, the utility model can be further improved as follows.

Furthermore, the righting frame comprises a main frame and two side vertical plates positioned on the same side of the main frame, the two side vertical plates are respectively connected with two ends of the main frame, at least one sliding block or roller group is arranged on the inner side surface of each side vertical plate, and the chain channel and the righting chain wheel are respectively arranged on the main frame.

The beneficial effect who adopts above-mentioned further scheme is that, the rotatable setting of centering sprocket is on the upper portion of body frame, and the inboard of centering sprocket meshes with the centering chain on locating the hoisting beam of rig, and the outside meshes with the drive side through the promotion chain of chain passageway, has on the side riser with promote orbital complex slider or hold the orbital roller train of promotion tightly, through this centering frame centering mechanism and rig between the promotion track location and centering on the lift action on promoting the track.

Further, the roller group comprises a pair of rollers, and a gap for accommodating the lifting rail is arranged between the pair of rollers.

The beneficial effect who adopts above-mentioned further scheme is that, a pair of gyro wheel is located the both sides of promoting the track and embraces the promotion track tightly, realizes righting the mechanism and moves up and down along the lifting beam.

Furthermore, the upper end and the lower end of the side vertical plate are respectively provided with an auxiliary wheel which can walk along the surface of the lifting track, and the auxiliary wheel is connected with the side vertical plate through an auxiliary mounting plate.

The beneficial effect who adopts above-mentioned further scheme is that, if the frame of righting moves along promoting the track lift action, frictional force between the two is big, and adopts the cooperation of auxiliary wheel and promotion track to reduce the frictional force between frame of righting and the promotion track, and the mechanism of righting lift action is more convenient, reduces the noise when the mechanism of righting moves.

Furthermore, a chain wheel frame is arranged on the top of the main frame, the centering chain wheel is arranged on the chain wheel frame, and the chain wheel frame is connected with the main frame through a locking bolt.

The beneficial effect who adopts above-mentioned further scheme is that, right the sprocket setting on the sprocket carrier, the sprocket carrier is installed at the top of body frame to be connected with the riser of body frame through the locking bolt, realize right the installation of sprocket, right sprocket installation and maintain convenient and fast more.

Furthermore, the side vertical plate is provided with an inward concave notch.

The beneficial effects of adopting above-mentioned further scheme are that, be convenient for right the frame and promote orbital installation cooperation, can also alleviate the weight of righting the mechanism simultaneously to reduce the energy consumption of excavator.

The utility model also relates to a drilling machine, which comprises a lifting beam, a drill rod assembly and a lifting mechanism, and further comprises the centering mechanism for the drill rod assembly of the drilling machine, wherein lifting tracks are respectively arranged on two side surfaces of the lifting beam, the lifting mechanism comprises a driving chain wheel, a driven chain wheel, a lifting chain and a lifting motor, the lifting chain is wound on the driving chain wheel and the driven chain wheel, the lifting motor drives the driving chain wheel to rotate, the driving chain wheel is arranged at the upper end of the lifting beam, the driven chain wheel is arranged at the lower end of the lifting beam, the lifting chain comprises a driving side and a return side, the drill rod assembly is connected with the driving side, and the centering mechanism for the drill rod assembly of the drilling machine is arranged below the drill rod assembly.

The utility model has the beneficial effects that: the drilling machine can be installed on the excavator, the lifting of the drilling machine and the rotation of the drill rod are controlled through the excavator, the drilling machine is convenient to install and adjust, the drill rod is guided, limited and supported by the aid of the centering mechanism, deviation in the operation process of the drill rod is avoided, accuracy of the drill rod is guaranteed, operation stability of the drill rod and durability of the drill rod are improved, maintenance times of the drilling machine are reduced, maintenance cost of the drilling machine is reduced, and working efficiency of the drilling machine is improved.

Furthermore, the lower part of the lifting track is also provided with an auxiliary positioning frame, and the auxiliary positioning frame is provided with an auxiliary positioning hole for a drill rod of the drill rod assembly to pass through.

The beneficial effects of adopting above-mentioned further scheme are that, the mechanism of righting is because the length of the vertical direction of righting frame, is difficult to descend the lower extreme position that promotes the track, so basically the mechanism of righting is righting spacing to the middle part of drilling rod, and the auxiliary positioning frame setting then can be to the position of the well lower part of drilling rod to lead spacing, prevents that the drilling rod from taking place the skew at drilling process, has improved the durability of drilling rod or even rig.

Furthermore, the auxiliary positioning frame is provided with a wind-gathering cover, and the wind-gathering cover is connected with the spiral dust collector through a pipeline.

Adopt above-mentioned further scheme's beneficial effect be, the wind-collecting cover can directly set up on auxiliary positioning frame, in time collects the dust of operation process through the wind-collecting cover, avoids being raised dust, reduces environmental pollution.

Furthermore, the wind-collecting cover is of a conical cylindrical structure, the small end of the wind-collecting cover is communicated with the auxiliary positioning hole, and the surface of the wind-collecting cover is provided with a mounting hole communicated with the pipeline.

The beneficial effect of adopting above-mentioned further scheme is that, the fan housing that sets up on auxiliary positioning frame can design into the toper section of thick bamboo, and auxiliary positioning hole can communicate with the fan housing inner cavity, and the operation is carried out to the cavity of the auxiliary positioning hole of rod end and fan housing, and the fan housing can all-round cover the operation area of drilling rod, better and timely collection dust and granule, further reduction operation environment's pollution condition.

Further, a wind gathering cover is further arranged on the lifting track and connected with the spiral dust collector through a pipeline.

The beneficial effect who adopts above-mentioned further scheme is that the air collecting cover can also directly set up at the orbital lower extreme that promotes for in time collect dust and the granule of drilling rod operation in-process, dust and granule entering spiral dust remover, later accessible pipeline gets into the dust collection box at the back and collects, guarantees the operation environment of drilling rod.

Drawings

FIG. 1 is a schematic structural view of a centralizer mechanism of the present invention;

FIG. 2 is a view of the present invention showing the engagement of the centering sprocket with the centering chain and the lifting chain;

FIG. 3 is a schematic top view of the righting frame of the present invention;

FIG. 4 is a schematic structural view of a centering sprocket and sprocket carrier in accordance with the present invention;

FIG. 5 is a schematic view of the construction of the drilling rig of the present invention;

FIG. 6 is a schematic structural view of the present invention in a state where the centering mechanism is engaged with the lifting beam;

in the figure, 1, a righting frame; 101. a main frame; 102. a side vertical plate; 103. a notch; 2. righting the chain wheel; 21. a sprocket frame; 22. locking the bolt; 3. a centralizing plate; 4. righting the hole; 5. a chain channel; 6. a roller; 7. righting the chain; 8. an auxiliary wheel; 9. an auxiliary mounting plate; 10. a lifting beam; 11. lifting the track; 12. a drill rod assembly; 13. a drive sprocket; 14. a driven sprocket; 15. lifting the chain; 151. a drive side; 152. a return side; 16. an auxiliary positioning frame; 17. auxiliary positioning holes; 18. a wind gathering cover.

Detailed Description

The principles and features of this invention are described below in conjunction with examples, which are set forth to illustrate, but are not to be construed to limit the scope of the utility model.

As shown in fig. 1-4, a centering mechanism for a drill rod assembly 12 of a drilling machine, the drilling machine includes a lifting beam 10, a drill rod assembly 12 and a lifting mechanism, a lifting track 11 is provided on the lifting beam 10, the lifting mechanism includes a lifting chain 15 for driving the drill rod assembly 12 to move up and down along the lifting beam 10, and includes a centering frame 1, a centering sprocket 2 and a centering plate 3, the centering plate 3 is provided with a centering hole 4 for a drill rod of the drill rod assembly 12 to pass through, the centering frame 1 is provided with a chain channel 5 for a driving side 151 of the lifting chain 15 to pass through and a slider or roller 6 set matched with the lifting track 11, a centering chain 7 is provided on a side wall of the lifting beam 10, an upper end of the centering chain is fixedly connected with a middle or upper portion of the lifting beam, a lower end of the centering chain is fixedly connected with a lower portion of the lifting beam, one side of the centering sprocket 2 is engaged with the driving side 151 of the lifting chain 15, the other side is engaged with the righting chain 7.

The righting frame 1 comprises a main frame 101 and two side vertical plates 102 positioned on the same side of the main frame 101, the two side vertical plates 102 are respectively connected with two ends of the main frame 101, at least one sliding block or roller 6 group is arranged on the inner side surface of each side vertical plate 102, and the chain channel 5 and the righting chain wheel 2 are respectively arranged on the main frame 101. The centralizing chain wheel 2 is rotatably arranged on the upper part of the main frame 101, the inner side of the centralizing chain wheel 2 is meshed with a centralizing chain 7 arranged on a lifting beam 10 of the drilling machine, the outer side of the centralizing chain wheel 2 is meshed with a driving side 151 of a lifting chain 15 passing through a chain channel 5, a slide block matched with the lifting track 11 or a roller 6 group tightly holding the lifting track 11 is arranged on the side vertical plate 102, and the centralizing mechanism and the drilling machine lifting track 11 are positioned through the centralizing frame 1 and the lifting action of the centralizing frame 1 on the lifting track 11.

The roller 6 set comprises a pair of rollers 6, and a gap for accommodating the lifting rail 11 is arranged between the pair of rollers 6. The pair of rollers 6 are positioned on two sides of the lifting rail 11 and tightly hold the lifting rail 11, so that the centralizing mechanism can move up and down along the lifting beam 10.

The upper end and the lower end of the side vertical plate 102 are respectively provided with an auxiliary wheel 8 capable of walking along the surface of the lifting track 11, and the auxiliary wheel 8 is connected with the side vertical plate 102 through an auxiliary mounting plate 9. If the righting frame 1 moves up and down along the lifting track 11, the friction force between the righting frame 1 and the lifting track 11 is large, and the friction force between the righting frame 1 and the lifting track 11 is reduced by adopting the matching of the auxiliary wheels 8 and the lifting track 11, so that the lifting action of the righting mechanism is more convenient, and the noise generated when the righting mechanism moves is reduced.

The chain wheel frame 21 is arranged on the top of the main frame, the centering chain wheel is arranged on the chain wheel frame, and the chain wheel frame is connected with the main frame through a locking bolt. The sprocket setting of righting is on the sprocket frame, and the sprocket frame is installed at the top of body frame to through the muffjoint on the riser of locking bolt 22 and body frame, realize righting the installation of sprocket, right sprocket installation and maintain convenient and fast more

The side vertical plate 102 is provided with an inner concave notch 103. The installation cooperation of frame 1 and lift track 11 is right to the be convenient for, can also alleviate the weight of righting the mechanism simultaneously to reduce the energy consumption of excavator.

As shown in fig. 5 and 6, in embodiment 1, the present invention further relates to a drilling machine, which includes a lifting beam 10, a drill rod assembly 12, and a lifting mechanism, and further includes a centering mechanism for a drill rod assembly 12 of the drilling machine as described above, wherein the lifting beam 10 is provided with lifting rails 11 on two side surfaces, the lifting mechanism includes a driving sprocket 13, a driven sprocket 14, a lifting chain 15 surrounding the driving sprocket 13 and the driven sprocket 14, and a lifting motor driving the driving sprocket 13 to rotate, the driving sprocket 13 is disposed at an upper end of the lifting beam 10, the driven sprocket 14 is disposed at a lower end of the lifting beam 10, the lifting chain 15 includes a driving side 151 and a return side 152, the drill rod assembly 12 is connected to the driving side 151, and the drill rod assembly 12 of the drilling machine is disposed below the drill rod assembly 12 by using the centering mechanism.

An auxiliary positioning frame 16 is further arranged at the lower part of the lifting track 11, and an auxiliary positioning hole 17 for a drill rod of the drill rod assembly 12 to pass through is formed in the auxiliary positioning frame 16. The righting mechanism is difficult to descend to the lower end position of the lifting track 11 due to the length of the righting frame 1 in the vertical direction, so that the righting mechanism basically rights and limits the middle part of a drill rod, the auxiliary positioning frame 16 is arranged to guide and limit the position of the middle lower part of the drill rod, the drill rod is prevented from deviating in the drilling process, and the durability of the drill rod or even a drilling machine is improved.

The auxiliary positioning frame 16 is provided with a wind gathering cover 18, and the wind gathering cover 18 is connected with the spiral dust collector through a pipeline. The wind-collecting cover 18 can be directly arranged on the auxiliary positioning frame 16, and dust generated in the operation process can be collected in time through the wind-collecting cover 18, so that dust is prevented from being raised, and environmental pollution is reduced.

The wind-collecting cover 18 is a conical cylindrical structure, the small end of the wind-collecting cover 18 is communicated with the auxiliary positioning hole 17, and a mounting hole communicated with the pipeline is formed in the surface of the wind-collecting cover 18. The wind gathering cover 18 arranged on the auxiliary positioning frame 16 can be designed into a conical barrel, the auxiliary positioning hole 17 can be communicated with the cavity in the wind gathering cover 18, the auxiliary positioning hole 17 at the rod end of the drill rod and the cavity of the wind gathering cover 18 can be used for operation, the wind gathering cover 18 can cover the operation area of the drill rod in all directions, dust and particles can be collected better and timely, and the pollution condition of the operation environment is further reduced.

In embodiment 2, the lifting rail 11 is further provided with a wind collecting cover 18, and the wind collecting cover 18 is connected with the spiral dust collector through a pipeline. The air collecting cover 18 can also be directly arranged at the lower end of the lifting track 11 and is used for collecting dust and particles in the operation process of the drill rod in time, the dust and the particles enter the spiral dust collector and then enter the rear dust collecting box through a pipeline for collection, and the operation environment of the drill rod is ensured. The rest of the structure is the same as that of embodiment 1, and therefore, the description thereof will not be repeated.

When the drilling machine works, the lifting motor rotates to drive the lifting chain 15 to rotate, the drill rod assembly 12 is connected with the driving side 151 of the lifting chain 15, so that the drill rod assembly 12 descends, along with the descending of a drill rod, the centering chain wheel 2 of the centering mechanism positioned in the middle of the lifting beam 10 is in rotating fit with the centering chain 7 under the action of the lifting chain 15, the centering mechanism descends slowly, the centering mechanism descends to the top of the auxiliary positioning frame 16 to stop, the drill rod assembly 12 is above the centering mechanism, the end part of the drill rod assembly 12 penetrates through the centering hole 4 and the auxiliary positioning hole 17 to act on an operation position to be drilled, the drill rod rotates under the action of the rotating motor to perform drilling operation, the centering hole 4 and the auxiliary positioning hole 17 can support the middle part and the middle lower part of the drill rod in the whole drilling operation process, the offset problem in the drilling operation process is avoided, the spiral dust remover is started in the drilling machine operation process, dust and particles in drilling operation are collected through the air collecting cover 18, dust is prevented from being raised, and environmental pollution of drilling machine operation is reduced; after the operation is finished, the drill rod stops rotating and rises under the action of the lifting chain 15, the centering mechanism rises along with the drill rod under the action of the centering chain 7 and the lifting chain 15, and when the drill rod assembly 12 reaches the upper part of the lifting beam 10, the centering mechanism rises to the middle position of the lifting beam 10 to wait for the next drilling operation.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A centralizing mechanism for a drill rod assembly of a drilling machine, the drilling machine comprises a lifting beam (10), a drill rod assembly (12) and a lifting mechanism, two side surfaces of the lifting beam (10) are respectively provided with a lifting track (11), the lifting mechanism comprises a lifting chain (15) for driving the drill rod assembly (12) to lift along the lifting beam (10), the centralizing mechanism is characterized by comprising a centralizing frame (1), a centralizing chain wheel (2) and a centralizing plate (3) which are arranged on the centralizing frame (1), the centralizing plate (3) is provided with a centralizing hole (4), the centralizing frame (1) is provided with a chain channel (5) for a driving side (151) of the lifting chain (15) to pass through and a slide block or a roller (6) group matched with the lifting track (11), a centralizing chain (7) is arranged on the side wall of the lifting beam (10), one side of the centralizing chain wheel (2) is meshed with the driving side (151) of the lifting chain (15), the other side is meshed with the righting chain (7).

2. The centralizing mechanism for a drill rod assembly of a drilling rig according to claim 1, characterized in that the centralizing frame (1) comprises a main frame (101) and two side vertical plates (102) positioned at the same side of the main frame (101), the two side vertical plates (102) are respectively connected with two ends of the main frame (101), at least one slide block or roller (6) group is arranged on the inner side surface of each side vertical plate (102), and the chain channel (5) and the centralizing chain wheel (2) are respectively arranged on the main frame (101).

3. The centralizer mechanism for a drill rod assembly of a drilling rig according to claim 2, wherein the set of rollers (6) comprises a pair of rollers (6), a gap being provided between the pair of rollers (6) for accommodating the lifting track (11).

4. The centralizer mechanism for the drill rod assembly of the drilling rig according to claim 2, characterized in that the upper end and the lower end of the side vertical plate (102) are respectively provided with an auxiliary wheel (8) capable of walking along the surface of the lifting track (11), and the auxiliary wheels (8) are connected with the side vertical plate (102) through an auxiliary mounting plate (9).

5. The centralizer mechanism for the drill rod assembly of the drilling machine according to claim 2, characterized in that a chain wheel frame (21) is arranged on the top of the main frame (101), the centralizer chain wheel (2) is arranged on the chain wheel frame (21), and the chain wheel frame (21) is connected with the main frame (101) through a locking bolt (22).

6. A drilling machine comprises a lifting beam (10), a drill rod assembly (12) and a lifting mechanism, the centering mechanism for the drill rod assembly of the drilling machine is characterized by further comprising the centering mechanism for the drill rod assembly of the drilling machine according to any one of claims 1 to 5, two side surfaces of the lifting beam (10) are respectively provided with a lifting track (11), the lifting mechanism comprises a driving chain wheel (13), a driven chain wheel (14), a lifting chain (15) surrounding the driving chain wheel (13) and the driven chain wheel (14) and a lifting motor driving the driving chain wheel (13) to rotate, the driving chain wheel (13) is arranged at the upper end of the lifting beam (10), the driven chain wheel (14) is arranged at the lower end of the lifting beam (10), the lifting chain (15) comprises a driving side (151) and a return side (152), the drill rod assembly (12) is connected with the driving side (151), and the drill rod assembly of the drilling machine is arranged below the drill rod assembly (12) by a centering mechanism.

7. The drilling machine according to claim 6, characterized in that the lower part of the lifting track (11) is further provided with an auxiliary positioning frame (16), and the auxiliary positioning frame (16) is provided with an auxiliary positioning hole (17) for the rod part of the drill rod assembly (12) to pass through.

8. The drilling machine according to claim 7, characterized in that the auxiliary positioning frame (16) is provided with a wind-collecting hood (18), and the wind-collecting hood (18) is connected with the spiral dust collector through a pipeline.

9. The drilling machine according to claim 8, characterized in that the wind-collecting cover (18) is a conical cylindrical structure, the small end of the wind-collecting cover (18) is communicated with the auxiliary positioning hole (17), and the surface of the wind-collecting cover (18) is provided with a mounting hole communicated with the pipeline.

10. Drilling machine according to claim 6, characterized in that the lower end of the lifting track (11) is further provided with a wind-collecting hood (18), which wind-collecting hood (18) is connected with the spiral dust collector by means of a pipe.