CN220955496U - Working condition switching fast rotary drilling rig working device and rotary drilling rig - Google Patents

Abstract

The utility model belongs to the technical field of engineering machinery, and particularly relates to a working device of a rotary drilling rig and the rotary drilling rig with rapid working condition switching. The working device comprises a down-the-hole hammer clamp holder, a pressurizing oil cylinder, a power head module, a drilling mast assembly and a lifting device; the down-the-hole hammer holder comprises a bracket assembly; the power head module comprises a power head main body, a pressurizing oil cylinder seat and a truss assembly; the power head main body is connected with the truss assembly and the pressurizing oil cylinder seat above; the power head main body is provided with a channel through which the pressurizing oil cylinder can pass; the lifting device is connected with the truss assembly or a drill rod of the rotary drilling rig and is connected with the drill mast assembly, and the power head module is driven to move along the drill mast assembly or lift and put the drill rod; the upper end of the pressurizing oil cylinder is connected with the drilling mast assembly, and the lower end of the pressurizing oil cylinder is directly connected with the pressurizing oil cylinder seat or connected with the bracket assembly through a channel. The utility model can realize the rapid switching between the working condition of the down-the-hole hammer and the rotary digging working condition.

Description

Working condition switching fast rotary drilling rig working device and rotary drilling rig

Technical Field

The utility model belongs to the technical field of engineering machinery, and particularly relates to a working device of a rotary drilling rig and the rotary drilling rig with rapid working condition switching.

Background

The rotary drilling working condition and the down-the-hole hammer working condition are two working conditions commonly used for the rotary drilling rig, but the conventional rotary drilling rig with the down-the-hole hammer usually needs more modification to a plurality of parts to realize the switching of the working condition of the down-the-hole hammer, and has low modularization degree, so that the coverage rate of one machine for two purposes is lower.

Disclosure of utility model

In order to solve the defects in the prior art, the utility model provides a working device of a rotary drilling rig and the rotary drilling rig, which are capable of realizing the rapid switching of the working condition of a down-the-hole hammer and the rotary drilling condition.

In order to solve the defects in the prior art, the technical scheme provided by the utility model is as follows:

the working device of the rotary drilling rig with the rapid working condition switching comprises a down-the-hole hammer clamp holder, a pressurizing oil cylinder, a power head module, a drilling mast assembly and a lifting device;

the down-the-hole hammer holder comprises a bracket assembly;

The power head module comprises a power head main body, a pressurizing oil cylinder seat and a truss assembly; the power head main body is connected with the truss assembly and the pressurizing oil cylinder seat above; the power head main body is provided with a channel through which the pressurizing oil cylinder can pass;

The lifting device is connected with the truss assembly or a drill rod of the rotary drilling rig and is connected with the drill mast assembly, and the power head module is driven to move along the drill mast assembly or lift the drill rod;

The upper end of the pressurizing oil cylinder is connected with the drilling mast assembly, and the lower end of the pressurizing oil cylinder is directly connected with the pressurizing oil cylinder seat or penetrates through the channel to be connected with the bracket assembly.

Preferably, the drill mast assembly is provided with a slideway;

The power head main body is in sliding connection with the drill mast assembly;

the bracket assembly is in sliding connection with the drilling mast assembly.

The lifting device is a hoisting device; the truss assembly is provided with a pulley, and the hoisting device is connected with the pulley and is positioned above the power head module.

Preferably, the truss assembly is connected with the power head main body through a pin shaft; the pressurizing oil cylinder seat is connected with the power head main body through a pin shaft.

Preferably, the device further comprises a connecting rod; one end of the connecting rod is connected with the pressurizing oil cylinder, and the other end of the connecting rod is connected with the bracket assembly.

Preferably, the down-the-hole hammer gripper further comprises a right gripper holding mechanism, a left gripper holding mechanism and two gripper cylinders;

the bracket assembly comprises a bracket mechanism, a bracket cylinder seat and a sliding block device; the bracket oil cylinder seat is positioned in front of the bracket mechanism and is connected with the upper part of the bracket mechanism; the bracket mechanism is connected with the pressurizing oil cylinder through a bracket oil cylinder seat; the sliding block device is positioned on the side surface of the bracket mechanism and connected with the bracket mechanism, and the sliding block device is in sliding connection with the drill mast assembly;

the right claw holding mechanism and the left claw holding mechanism are connected with the bracket mechanism through claw holding pin shafts;

one end of each gripper cylinder is hinged with the bracket mechanism, and the other end of each gripper cylinder is connected with the right holding claw mechanism and the left holding claw mechanism through cylinder pin shafts.

Preferably, the down-the-hole hammer holder further comprises a protection plate; the protection plate is connected with the bracket mechanism through bolts, and the protection plate is positioned above the clamp holder oil cylinder.

Preferably, the down-the-hole hammer holder further comprises at least one group of diameter-adjusting barrels; the clamping parts of the right claw holding mechanism and the left claw holding mechanism are arc-shaped, and the central angles of the clamping parts of the right claw holding mechanism and the left claw holding mechanism are 155-168 degrees; an interference-preventing gap is arranged between the inner ends of the clamping parts of the right clamping claw mechanisms and the left clamping claw mechanisms;

The diameter adjusting barrels are arc-shaped, are directly selected according to the clamping diameter requirement and are respectively connected with the inner sides of the clamping parts of the right claw holding mechanism and the left claw holding mechanism through bolts; the central angle of the diameter-adjusting barrel is 155-168 degrees; an interference-proof gap is arranged between the inner ends of the pair of diameter-adjusting barrels.

Preferably, the gripper cylinder is located at the inner sides of the right gripper mechanism and the left gripper mechanism.

Preferably, the device also comprises a fixed pin shaft; the outer ends of the clamping parts of the right clamping claw mechanism and the left clamping claw mechanism can be attached to each other and are provided with pin shaft holes matched with the fixing pin shafts.

The rotary drilling rig comprises the working device of the rotary drilling rig, wherein the working condition of the working device is switched rapidly.

The utility model has the beneficial effects that:

The utility model can realize the multi-module rapid switching of the working condition of the down-the-hole hammer of the rotary drilling rig and the working condition of the rotary drilling rig, and for the existing rotary drilling rig, only the power head module is needed to be modified, the pressurizing oil cylinder seat and the truss assembly are changed from fixed type to detachable type, and meanwhile, the channel through which the pressurizing oil cylinder passes is arranged, so that the modification of the working condition of the down-the-hole hammer of the rotary drilling rig can be completed, the dual-purpose of one machine is realized, and the adaptability to the existing rotary drilling rig is strong.

The down-the-hole hammer holder can slide up and down, can be adjusted to the optimal holding position, has better fixing and guiding functions on the down-the-hole hammer, and ensures rock entering precision.

The utility model improves the function of the down-the-hole hammer holder, ensures that the down-the-hole hammer holder has the functions of holding a large-diameter drilling tool, adjusting the holding diameter in a large range and moving up and down along the drill mast guide rail to avoid the protective barrel while keeping the down-the-hole hammer neutral, and has wider construction range and more flexible and stable operation.

The down-the-hole hammer holder provided by the utility model can avoid interference with a down-the-hole hammer drilling tool when being opened.

Drawings

FIG. 1 is a schematic diagram of a working device of a rotary drilling rig with rapid working condition switching provided by the application;

FIG. 2 is an exploded view of the down-the-hole hammer holder provided by the present application;

FIG. 3 is a schematic view of a bracket assembly provided by the present application;

FIG. 4 is a schematic diagram of a power head module according to the present application;

FIG. 5 is a schematic view of a connecting rod according to the present application;

FIG. 6 is a top view of the down-the-hole hammer holder provided by the present application;

FIG. 7 is a top view of a prior art down-the-hole hammer holder;

FIG. 8 is a schematic diagram of the working device of the rotary drilling rig with rapid working condition switching in the rotary drilling working condition;

Wherein: 1-a down-the-hole hammer holder; 2-connecting rods; 3-a pressurizing oil cylinder; 4-a power head module; 5-drilling mast assembly; 6-a hoisting device; 1-1-a right claw holding mechanism; the outer end of the clamping part of the 1-1-1-right claw holding mechanism; the inner end of the clamping part of the 1-1-2-right claw holding mechanism; 1-2-claw holding pin shafts; 1-3-bracket assembly; 1-4-guard plates; 1-5-clamp holder oil cylinder; 1-6-cylinder pin shafts; 1-7-left holding claw mechanism; the outer end of the clamping part of the 1-7-1-left claw holding mechanism; the inner end of the clamping part of the 1-7-2-left holding claw mechanism; 1-9-diameter adjusting barrels; 1-10 parts of a fixed pin shaft; 1-3-1-carriage mechanism; 1-3-2-bracket cylinder base; 1-3-3-slider means; 1-3-4-claw pin shaft holes; 1-3-5-cylinder pin shaft holes; 1-3-6-guard plate mounting holes; 1-3-7-slider mounting holes; 4-1-a power head main body; 4-2-a pressurizing oil cylinder seat; 4-3-truss assembly; 7-drill rod.

Detailed Description

The utility model is further described below in connection with embodiments. The following embodiments are only for more clearly illustrating the technical aspects of the present utility model, and should not be used to limit the scope of the present utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Example 1

The working device of the rotary drilling rig with the rapid working condition switching is shown in fig. 1 to 4, and comprises a down-the-hole hammer clamp holder 1, a pressurizing oil cylinder 3, a power head module 4, a drilling mast assembly 5 and a lifting device; the down-the-hole hammer holder 1 comprises a bracket assembly 1-3; the power head module 4 comprises a power head main body 4-1, a pressurizing oil cylinder seat 4-2 and a truss assembly 4-3; the power head main body 4-1 is connected with the truss assembly 4-3 positioned above and the pressurizing oil cylinder seat 4-2; the power head main body 4-1 is provided with a channel through which the pressurizing oil cylinder 3 can pass; the lifting device is connected with the truss assembly 4-3 or the drill rod 7 of the rotary drilling rig and is connected with the drill mast assembly 5, and the power head module 4 is driven to move along the drill mast assembly 5 or lift the drill rod 7; the upper end of the pressurizing oil cylinder 3 is connected with the drilling mast assembly 5, and the lower end is directly connected with the pressurizing oil cylinder seat 4-2 or connected with the bracket assembly 1-3 through a channel.

The pressurizing oil cylinder seat 4-2 and the truss assembly 4-3 are connected with the power head main body 4-1 by adopting pin shafts, so that quick assembly and disassembly can be realized.

When the down-the-hole hammer is adopted for construction, as shown in fig. 1, the pressurizing oil cylinder seat 4-2 is quickly detached from the power head main body 4-1, the truss assembly 4-3 is quickly installed at the upper end of the power head main body 4-1 through a pin shaft, the power head module 4 is lifted through the lifting device, meanwhile, the pressurizing oil cylinder 3 penetrates through a channel to be connected with the bracket assembly 1-3 of the down-the-hole hammer holder 1, and the down-the-hole hammer can be adopted for construction after the down-the-hole hammer is fixed.

When the rotary digging working condition is adopted, as shown in fig. 8, the connection between the bracket assembly 1-3 and the pressurizing oil cylinder 3 is released, the down-the-hole hammer clamp holder 1 is removed, the truss assembly 4-3 is removed, the pressurizing oil cylinder seat 4-2 is arranged on the power head main body 4-1 through a pin shaft, the pressurizing oil cylinder is connected with the pressurizing oil cylinder seat 4-2, the power head main body 4-1 is pressurized and lifted, the lifting device is connected with the drill rod 7, and the power head module 4 is lowered through the lifting device to perform rotary digging construction. The truss assembly 4-3 can be detached, so that the truss assembly 4-3 can be prevented from colliding with the pressurizing oil cylinder 3.

According to the utility model, the power head is driven by one pressurizing oil cylinder 3 to carry out rotary digging and the down-the-hole hammer is driven to carry out construction, so that one cylinder is dual-purpose, the number of oil cylinders is reduced, the device is simplified, and the cost is saved. Meanwhile, the utility model can realize the rapid switching between the working condition of the down-the-hole hammer and the rotary digging working condition by only disassembling and assembling the pressurizing oil cylinder seat 4-2, the truss assembly 4-3 and the down-the-hole hammer clamp holder 1, thereby being convenient and rapid.

In an alternative embodiment of the utility model, the drill mast assembly 5 is provided with a slideway; the power head main body 4-1 is in sliding connection with the drill mast assembly 5; the bracket assemblies 1-3 are in sliding connection with the drill mast assembly 5.

In the early drilling stage in the down-the-hole hammer construction process, the down-the-hole hammer clamp holder is required to perform fixing and guiding functions, so that the hole forming precision and quality are ensured. However, the existing down-the-hole hammer holder has obvious functional defects: the down-the-hole hammer clamp holder is usually fixed at the bottom of the drilling mast at present, and can not realize up-and-down motion adjustment, and when the construction protection barrel is higher than the ground, the down-the-hole hammer clamp holder can not work, so that the follow-up construction is influenced. According to the application, the pressurizing oil cylinder 3 can drive the down-the-hole hammer clamp holder 1 to slide up and down along the drilling mast assembly 5 to adjust the down-the-hole hammer clamp holder to an optimal clamping position, so that better fixing and guiding effects are achieved on the down-the-hole hammer, and rock entering precision is ensured.

In an alternative embodiment of the utility model, see fig. 1, 4, the hoisting means are hoisting means 6; the truss assembly 4-3 is provided with pulleys, the winch device 6 is connected with the drill mast assembly 5 and is positioned above the power head module 4, and a main coil steel wire rope of the winch device 6 is connected with the pulleys on the truss assembly 4-3. The power head module 4 is lifted by the hoisting device 6, and the hoisting device 6 is only needed by the prior art. The lifting device, the pulley in the truss assembly 4-3 and the drill mast assembly 5 are matched to form a movable pulley structure, so that the power head main body can be lifted and put.

In an alternative embodiment of the present utility model, referring to fig. 1 and 5, the working device of the rotary drilling rig with rapid working condition switching further comprises a connecting rod 2; one end of the connecting rod 2 is connected with the pressurizing oil cylinder 3 through a pin shaft, the other end of the connecting rod is arranged on the bracket oil cylinder seat 1-3-2 through a pin shaft, and the connecting rod 2 plays roles of transitional connection and lengthening so as to adapt to the length adjustment of the pressurizing oil cylinders 3 of different model types.

In an alternative embodiment of the present utility model, referring to fig. 2 and 3, the down-the-hole hammer gripper 1 further includes a right holding claw mechanism 1-1, a left holding claw mechanism 1-7, and two gripper cylinders 1-5; the bracket assembly 1-3 comprises a bracket mechanism 1-3-1, a bracket cylinder seat 1-3-2 and a sliding block device 1-3-3; the corresponding position of the bracket mechanism 1-3-1 is provided with a claw holding pin shaft hole 1-3-4, an oil cylinder pin shaft hole 1-3-5 and a sliding block mounting hole 1-3-7. The bracket cylinder seat 1-3-2 is positioned in front of the bracket mechanism 1-3-1 and is connected with the upper part of the bracket mechanism 1-3-1, and the bracket mechanism 1-3-1 is connected with the pressurizing cylinder 3 through the bracket cylinder seat 1-3-2; the sliding block device 1-3-3 is positioned on the side surface of the bracket mechanism 1-3-1 and is connected with the sliding block mounting hole 1-3-7 of the bracket mechanism 1-3-1 through a bolt, and the sliding block device 1-3-3 is in sliding connection with the drilling mast assembly 5; the right claw holding mechanism 1-1 and the left claw holding mechanism 1-7 are connected with claw holding pin shaft holes 1-3-4 of the bracket mechanism 1-3-1 through claw holding pins 1-2; one end of each gripper cylinder 1-5 is hinged with a cylinder pin shaft hole 1-3-5 of the bracket mechanism 1-3-1, and the other end of each gripper cylinder is connected with the right claw holding mechanism 1-1 and the left claw holding mechanism 1-7 through cylinder pin shafts 1-6. The opening and closing of the right holding claw mechanism 1-1 and the left holding claw mechanism 1-7 can be controlled through the extension and contraction of the holder oil cylinder 1-5. The right holding claw mechanism 1-1, the left holding claw mechanism 1-7 and the bracket assembly 1-3 are plate welding pieces. The slide block device 1-3-3 can slide up and down on a slideway of the drilling mast assembly 5 through the extension and contraction of the pressurizing oil cylinder 3, so that the height position of the whole down-the-hole hammer clamp holder 1 is adjusted.

In an alternative embodiment of the utility model, referring to fig. 2 and 3, the down-the-hole hammer holder 1 further comprises a guard plate 1-4; the bracket mechanism 1-3-1 is also provided with a protection plate mounting hole 1-3-6, the protection plate 1-4 is connected with the protection plate mounting hole 1-3-6 of the bracket mechanism 1-3-1 through bolts, and the protection plate 1-4 is positioned above the clamp cylinder 1-5 and used for protecting the clamp cylinder 1-5 at the lower part and preventing the clamp cylinder 1-5 from being hit by hard objects such as stones in the construction process.

In an alternative embodiment of the utility model, referring to fig. 2 and 6, the down-the-hole hammer holder 1 further comprises at least one set of diameter adjustment barrels 1-9. The clamping parts of the right claw holding mechanism 1-1 and the left claw holding mechanism 1-7 are arc-shaped, and the central angles of the clamping parts of the right claw holding mechanism 1-1 and the left claw holding mechanism 1-7 are 155-168 degrees; the outer end 1-1-1 of the clamping part of the right claw holding mechanism 1-1 and the outer end 1-7-1 of the clamping part of the left claw holding mechanism 1-7 can be attached, and an interference prevention gap is arranged between the inner end 1-1-2 of the clamping part of the right claw holding mechanism 1-1 and the inner end 1-7-2 of the clamping part of the left claw holding mechanism 1-7; the diameter adjusting barrels 1-9 are arc-shaped, the diameter adjusting barrels 1-9 are respectively connected with the inner sides of the clamping parts of the right claw holding mechanism 1-1 and the left claw holding mechanism 1-7, and the central angle alpha of the diameter adjusting barrels 1-9 is 155-168 degrees; the outer ends of the pair of diameter adjusting barrels 1-9 can be attached, and an interference preventing gap is arranged between the inner ends. Meanwhile, the cylinder 1-5 of the preferred clamp is positioned at the inner sides of the right claw holding mechanism 1-1 and the left claw holding mechanism 1-7, and the cylinder pin shaft 1-6 is as close to the inner end of the diameter adjusting barrel 1-9 as possible. The diameter adjusting barrel is a plate welding piece, and the diameter adjusting barrel 1-9 is connected to the clamping parts of the right claw holding mechanism 1-1 and the left claw holding mechanism 1-7, so that the diameter adjusting barrel can be further adapted to the down-the-hole hammer drilling tools with different diameters.

Referring to fig. 7, in the existing down-the-hole hammer holder, a holder cylinder 1-5 is located at the outer sides of a right holding claw mechanism 1-1 and a left holding claw mechanism 1-7, on one hand, the maximum holding diameter is smaller, the adjustable holding range is small, and the large-diameter down-the-hole hammer drilling tool cannot be suitable; on the other hand, when the clamp holder cylinder 1-5 is positioned at the outer sides of the right clamp holding mechanism 1-1 and the left clamp holding mechanism 1-7, and the pressurizing cylinder 3 drives the down-the-hole hammer clamp holder 1 to slide up and down along the drill mast assembly 5, the down-the-hole hammer clamp holder 1 and the guard barrel have collision risks, so that the moving range of the down-the-hole hammer drill in height is limited. In addition, the inner end 1-1-2 of the clamping part of the right claw holding mechanism 1-1 is attached to the inner end 1-7-2 of the clamping part of the left claw holding mechanism 1-7, and the inner ends of a pair of diameter adjusting barrels are attached. In operation, the inner side of the down-the-hole hammer drilling tool and the inner sides of the diameter-adjusting barrel or the inner sides of the right holding claw mechanisms 1-1 and 1-7 are always in a fitting state, and after the down-the-hole hammer drilling tool drills into the ground, the inner ends of the diameter-adjusting barrel or the inner sides of the right holding claw mechanisms 1-1 and 1-7 and the inner sides of the left holding claw mechanisms 1-7 can interfere with the down-the-hole hammer drilling tool when being opened, so that the down-the-hole hammer drilling tool cannot be opened, and inconvenience is caused to construction.

In the utility model, on one hand, the central angles of the clamping positions of the right claw holding mechanism 1-1 and the left claw holding mechanism 1-7 and the diameter adjusting barrel are adjusted to 155 degrees to 168 degrees, and on the other hand, the hinge points of the clamp cylinder 1-5 are internally arranged, so that the movement tracks of the diameter adjusting barrel can avoid the original interference positions when the right claw holding mechanism 1-1 and the left claw holding mechanism 1-7 are opened, and the free opening and closing of the right claw holding mechanism 1-1 and the left claw holding mechanism 1-7 can be realized when the down-the-hole hammer drill is positioned below the ground. In addition, the gripper cylinder 1-5 is internally arranged, so that the opening and closing angles of the right gripper mechanism 1-1 and the left gripper mechanism 1-7 can be increased, and the maximum gripping diameter can be increased; meanwhile, the clamp holder cylinder 1-5 is internally arranged, so that the impact on the protection barrel can be avoided when the down-the-hole hammer clamp holder 1 slides up and down, the moving range of the down-the-hole hammer on the height is enlarged, the down-the-hole hammer construction range is wider, and the operation is more flexible and stable.

In an alternative embodiment of the utility model, the diameter-adjusting barrel 1-9 is connected with the inner sides of the clamping parts of the right claw holding mechanism 1-1 and the left claw holding mechanism 1-7 through bolts. The diameter adjusting barrel 1-9 is installed through bolts, so that the diameter adjusting barrel 1-9 with different inner diameters can be replaced conveniently according to the diameter of the down-the-hole hammer, adjustment of various clamping diameters such as large, medium and small can be realized, and clamping of a large-diameter drilling tool with the diameter of 1.2m can be realized. As shown in fig. 2, diameter-adjusting barrels 1-9 of different sizes such as a large diameter-adjusting barrel and a small diameter-adjusting barrel can be provided. The clamping radius of the diameter-adjusting barrels 1-9 is quickly adjusted to adapt to down-the-hole hammer construction under different working conditions.

In an alternative embodiment of the utility model, referring to fig. 2, pin holes are arranged at the outer ends of the right claw holding mechanism 1-1 and the left claw holding mechanism 1-7, and after a down-the-hole hammer drilling tool is fixed, the right claw holding mechanism 1-1 and the left claw holding mechanism 1-7 are connected through fixed pin shafts 1-10, so that the right claw holding mechanism 1-1 and the left claw holding mechanism 1-7 are prevented from being loosened due to excessive vibration or hydraulic problems of a clamp cylinder 1-5 in the construction process.

Example two

The embodiment provides a rotary drilling rig, which comprises the working device of the rotary drilling rig with rapid working condition switching, and has the advantages of being capable of flexibly switching the rotary drilling working condition and the working condition of the down-the-hole hammer, flexibly adjusting the height of the down-the-hole hammer and having strong down-the-hole hammer size adaptability.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.

Claims (10)

1. The working device of the rotary drilling rig with the rapid working condition switching is characterized by comprising a down-the-hole hammer clamp holder (1), a pressurizing oil cylinder (3), a power head module (4), a drilling mast assembly (5) and a lifting device;

the down-the-hole hammer holder (1) comprises a bracket assembly (1-3);

The power head module (4) comprises a power head main body (4-1), a pressurizing oil cylinder seat (4-2) and a truss assembly (4-3); the power head main body (4-1) is connected with the truss assembly (4-3) above and the pressurizing oil cylinder seat (4-2); the power head main body (4-1) is provided with a channel through which the pressurizing oil cylinder (3) can pass;

The lifting device is connected with the truss assembly (4-3) or a drill rod (7) of the rotary drilling rig and is connected with the drill mast assembly (5), and the power head module (4) is driven to move along the drill mast assembly (5) or lift and put the drill rod (7);

The upper end of the pressurizing oil cylinder (3) is connected with the drilling mast assembly (5), and the lower end of the pressurizing oil cylinder is directly connected with the pressurizing oil cylinder seat (4-2) or penetrates through the channel to be connected with the bracket assembly (1-3).

2. The working device of the rotary drilling rig with the rapid working condition switching according to claim 1, wherein a slideway is arranged on the drilling mast assembly (5);

The power head main body (4-1) is in sliding connection with the drilling mast assembly (5);

The bracket assembly (1-3) is in sliding connection with the drilling mast assembly (5).

3. The working device of the rotary drilling rig with rapid working condition switching according to claim 1, wherein the lifting device is a hoisting device (6); the truss assembly (4-3) is provided with a pulley, and the hoisting device (6) is connected with the pulley and is positioned above the power head module (4).

4. The working device of the rotary drilling rig with the rapid working condition switching according to claim 1, wherein the truss assembly (4-3) is connected with the power head main body (4-1) through a pin shaft; the pressurizing oil cylinder seat (4-2) is connected with the power head main body (4-1) through a pin shaft.

5. The working device of the rotary drilling rig with the rapid working condition switching according to claim 1, further comprising a connecting rod (2); one end of the connecting rod (2) is connected with the pressurizing oil cylinder (3), and the other end of the connecting rod is connected with the bracket assembly (1-3).

6. The working device of the rotary drilling rig with the rapid working condition switching according to claim 1, wherein the down-the-hole hammer gripper (1) further comprises a right gripper holding mechanism (1-1), a left gripper holding mechanism (1-7) and two gripper cylinders (1-5);

The bracket assembly (1-3) comprises a bracket mechanism (1-3-1), a bracket cylinder seat (1-3-2) and a sliding block device (1-3-3); the bracket cylinder seat (1-3-2) is positioned in front of the bracket mechanism (1-3-1) and is connected with the upper part of the bracket mechanism (1-3-1); the bracket mechanism (1-3-1) is connected with the pressurizing oil cylinder (3) through a bracket oil cylinder seat (1-3-2); the sliding block device (1-3-3) is positioned on the side surface of the bracket mechanism (1-3-1) and is connected with the bracket mechanism (1-3-1), and the sliding block device (1-3-3) is in sliding connection with the drill mast assembly (5);

The right claw holding mechanism (1-1) and the left claw holding mechanism (1-7) are connected with the bracket mechanism (1-3-1) through a claw holding pin shaft (1-2);

One end of each group of gripper cylinder (1-5) is hinged with the bracket mechanism (1-3-1), and the other end of each group of gripper cylinders is respectively connected with the right claw holding mechanism (1-1) and the left claw holding mechanism (1-7) through cylinder pin shafts (1-6).

7. The working device of the rotary drilling rig with rapid working condition switching according to claim 6, wherein the down-the-hole hammer holder (1) further comprises a protection plate (1-4); the protection plate (1-4) is connected with the bracket mechanism (1-3-1) through bolts, and the protection plate (1-4) is positioned above the clamp holder oil cylinder (1-5).

8. The working device of the rotary drilling rig with rapid working condition switching according to claim 6, wherein the down-the-hole hammer holder (1) further comprises at least one group of diameter adjusting barrels (1-9);

Clamping positions of the right claw holding mechanism (1-1) and the left claw holding mechanism (1-7) are arc-shaped, and central angles of the clamping positions of the right claw holding mechanism (1-1) and the left claw holding mechanism (1-7) are 155-168 degrees; an interference-preventing gap is arranged between the inner ends of the clamping parts of the right clamping claw mechanism (1-1) and the left clamping claw mechanism (1-7);

The diameter adjusting barrels (1-9) are arc-shaped, and the diameter adjusting barrels (1-9) are respectively connected with the inner sides of clamping parts of the right claw holding mechanism (1-1) and the left claw holding mechanism (1-7) through bolts; the central angle of the diameter-adjusting barrel (1-9) is 155-168 degrees; an interference-preventing gap is arranged between the inner ends of the pair of diameter-adjusting barrels (1-9);

The gripper cylinder (1-5) is positioned at the inner sides of the right gripper mechanism (1-1) and the left gripper mechanism (1-7).

9. The working device of the rotary drilling rig with the rapid working condition switching according to claim 6, further comprising a fixed pin (1-10); the outer ends of the clamping parts of the right holding claw mechanism (1-1) and the left holding claw mechanism (1-7) can be attached to each other and are provided with pin holes matched with the fixed pin shafts (1-10).

10. A rotary drilling rig comprising a rapid switching mode rotary drilling rig working apparatus according to any one of claims 1 to 9.