CN212249874U

CN212249874U - Mast device and rotary drilling rig

Info

Publication number: CN212249874U
Application number: CN202020998763.0U
Authority: CN
Inventors: 蒋涛; 王龙刚; 周亮
Original assignee: Beijing Sany Intelligent Technology Co Ltd
Current assignee: Beijing Sany Intelligent Technology Co Ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2020-12-29
Anticipated expiration: 2030-06-03

Abstract

The utility model provides a mast device and dig rig soon belongs to engineering machine tool technical field. The mast device includes: the mast mechanism comprises a main mast and at least one auxiliary mast, one end of the luffing mechanism is used for being connected with the vehicle body, and the other end of the luffing mechanism is respectively connected with the cylinder bodies of the main mast and the mast oil cylinder; an oil cylinder connecting seat and a mast connecting seat are integrally formed at the top of the main mast, the movable end of the mast oil cylinder is connected with the top of the main mast through the oil cylinder connecting seat, and an auxiliary mast or a pulley yoke adjacent to the main mast is connected with the top of the main mast through the mast connecting seat; the mast mechanism is provided with a guide sliding chute, the extension direction of the guide sliding chute is the same as that of the mast mechanism, and the guide sliding chute is provided with a driving mechanism which can slide on the guide sliding chute. The rotary drilling rig comprises the mast device. The method and the device can improve the equipment utilization rate of the rotary drilling rig in the low-clearance environment.

Description

Mast device and rotary drilling rig

Technical Field

The utility model relates to an engineering machine tool technical field particularly, relates to a mast device and dig rig soon.

Background

At present, in the construction of engineering machinery, due to the characteristics of large installed power, large output torque, good hole forming quality, flexible and convenient operation, high construction efficiency, low noise, small environmental pollution and the like of the rotary drilling rig, different drilling tools are matched, the rotary drilling rig can adapt to geological conditions of most areas in China, and becomes a main engineering machinery suitable for the construction of bored piles in building foundation engineering, so that the rotary drilling rig is widely used.

In recent years, rotary drilling rigs are well developed domestically, and are used more and more frequently in engineering construction, due to the characteristics of the rotary drilling rigs, masts are needed to support drill rods for construction, so that the height of the whole rotary drilling rig is higher in a working state, and the domestic construction environment is relatively complex, and the rotary drilling rigs on the market at present are suitable for foundation construction with different diameters and different depths within a certain range.

However, the existing rotary drilling rig is huge in size, so that the construction of the rotary drilling rig in a low-clearance environment is greatly hindered, for example, the utilization rate of the equipment is not high in an environment with limited height and space.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mast device and dig rig soon can improve and dig the rate of equipment utilization of rig under the low headroom environment soon.

The embodiment of the utility model is realized like this:

an aspect of the embodiment of the utility model provides a mast device, include: the mast mechanism comprises a main mast and at least one auxiliary mast, one side of the luffing mechanism is used for being connected with a vehicle body so that the mast mechanism is arranged on the vehicle body, and the other side of the luffing mechanism is respectively connected with cylinder bodies of the main mast and the mast oil cylinder; an oil cylinder connecting seat and a mast connecting seat are integrally formed at the top of the main mast, the movable end of the mast oil cylinder is connected with the top of the main mast through the oil cylinder connecting seat, and an auxiliary mast or a pulley yoke adjacent to the main mast is connected with the top of the main mast through the mast connecting seat; the mast mechanism is provided with a guide sliding chute, the extension direction of the guide sliding chute is the same as that of the mast mechanism, the guide sliding chute is provided with a driving mechanism, the driving mechanism can slide on the guide sliding chute, and the driving mechanism is used for being connected with a drilling tool.

Optionally, the mast device further comprises a main winch, an auxiliary winch and a pressurization winch, the main winch is arranged on the vehicle body, and the auxiliary winch and the pressurization winch are respectively arranged on the main mast.

Optionally, the pulley yoke comprises a main pulley yoke and an auxiliary pulley yoke, the main pulley yoke and the auxiliary pulley yoke are arranged in parallel, the main winch is connected with the main pulley yoke through a first steel wire rope, and the auxiliary pulley yoke is connected with the auxiliary winch through a second steel wire rope.

Optionally, the mast apparatus further comprises a guide pulley provided on the secondary mast for guiding the first wire rope and the second wire rope.

Optionally, the guide pulley includes a first guide wheel, a second guide wheel and a guide rod, the first guide wheel and the second guide wheel are arranged in parallel, the guide rod is arranged between the first guide wheel and the second guide wheel, the first steel wire rope is arranged between the first guide wheel and the guide rod, and the second steel wire rope is arranged between the second guide wheel and the guide rod.

Optionally, the driving mechanism includes a power connection frame and a power head which are fixedly connected, the power connection frame is disposed on the guide chute, and a pulling pulley and a pressurizing pulley are further sequentially disposed on the power connection frame along the extending direction of the guide chute.

Optionally, a main pulley is arranged on the main pulley frame, one end of the first steel wire rope sequentially passes through the main winch, the guide pulley, the main pulley and the pulling pulley to pull up the drilling tool, and the other end of the second steel wire rope sequentially passes through the pressurizing winch and the pressurizing pulley to pressurize the drilling tool.

Optionally, the primary and secondary sheave-frames are each detachably connected to the mast mechanism.

Optionally, at least one set of limiting assemblies is arranged on the side wall of the guide chute and used for limiting the driving mechanism.

The utility model discloses on the other hand of embodiment provides a dig rig soon, include: the mast device comprises a vehicle body and any one of the mast devices, wherein the vehicle body comprises a lower vehicle assembly, a rotary support and an upper vehicle assembly, the upper vehicle assembly is connected to the lower vehicle assembly through the rotary support, and the mast device is arranged on the upper vehicle assembly.

The utility model discloses beneficial effect includes:

the embodiment of the utility model provides a mast device, this mast device includes mast mechanism, luffing mechanism, mast hydro-cylinder and pulley yoke, mast mechanism is used for adjusting according to the operation environment needs to adapt to the operation height of drilling tool; the amplitude variation mechanism is used for enabling the mast mechanism to be arranged on the vehicle body; the mast oil cylinder can adjust the operation angle of the mast mechanism; the pulley yoke is used for supporting the steel wire rope in the mast device. If the mast mechanism is only the main mast, the mast device is in a low clearance state, and the number of the auxiliary position rods can be properly increased or decreased by the mast device according to the working height of the drilling tool. One side of the amplitude variation mechanism is used for being connected with the vehicle body so as to enable the mast mechanism to be arranged on the vehicle body, and the other side of the amplitude variation mechanism is respectively connected with the main mast and the cylinder body of the mast oil cylinder and used for controlling the inclination angle of the mast mechanism by changing the telescopic amount of the movable end of the mast oil cylinder. The oil cylinder connecting seat and the mast connecting seat are integrally formed in the top of the main mast, the oil cylinder connecting seat and the mast connecting seat can effectively reduce the height of the main mast when the main mast is connected with the pulley yoke, specifically, the movable end of the mast oil cylinder is connected with the top of the main mast through the oil cylinder connecting seat, and the auxiliary mast or the pulley yoke adjacent to the main mast is connected with the top of the main mast through the mast connecting seat, so that the rotary drilling rig can be constructed in a lower environment, and the utilization rate of the rotary drilling rig is improved. The mast mechanism is provided with a guide sliding chute, the extension direction of the guide sliding chute is the same as that of the mast mechanism, the guide sliding chute is provided with a driving mechanism, the driving mechanism can slide on the guide sliding chute, namely the driving mechanism can reciprocate on the guide sliding chute, and the driving mechanism is used for being connected with a drilling tool and providing torque for the drilling tool so as to enable the drilling tool to be constructed.

The embodiment of the utility model provides a dig rig soon adopts foretell mast device, through setting up foretell mast device, enables to improve and digs the rate of equipment utilization of rig under the low headroom environment soon.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a low clearance state of a rotary drilling rig according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a mast device according to an embodiment of the present invention;

fig. 3 is a second schematic structural diagram of a mast device according to an embodiment of the present invention;

FIG. 4 is a schematic view of a portion of the enlarged structure of A in FIG. 3;

FIG. 5 is a partial enlarged structural view of B in FIG. 3;

fig. 6 is a partially enlarged structural diagram of C in fig. 3.

Icon: 100-a vehicle body; 200-a mast mechanism; 201-main winding; 202-auxiliary winding; 203-pressure winding; 210-a guide chute; 220-main mast; 230-secondary mast; 240-a guide pulley; 251-a first wire rope; 252-a second wire rope; 300-a luffing mechanism; 310-mast hydro-cylinder; 311-cylinder connecting base; 312-mast connection mount; 400-a drive mechanism; 410-a power head; 420-a power link; 430-a spacing assembly; 500-a pulley yoke; 510-primary sheave bracket; 520-auxiliary pulley yoke; 600-drilling tool.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In recent years, rotary drilling rigs are used more and more frequently in engineering construction, due to the characteristics of the rotary drilling rigs, masts are required to support drill rods for construction, so that the height of the whole rotary drilling rig is higher in a working state, and the domestic construction environment is relatively complex.

However, the existing rotary drilling rig is huge in size, so that the construction of the rotary drilling rig in a low-clearance environment is greatly hindered, for example, the utilization rate of the equipment is not high in an environment with limited height and space. The present application has been made to solve the above-mentioned problems occurring in the prior art, and the following embodiments of the present application are described below.

Fig. 1 is the utility model provides a dig structure schematic diagram of rig low headroom state soon, fig. 2 is the utility model provides an embodiment provides one of mast device's structure schematic diagram, please combine to refer to fig. 1 and fig. 2, the embodiment of the utility model provides a mast device is provided, include: the mast mechanism 200 comprises a main mast 220 and at least one secondary mast 230, one side of the luffing mechanism 300 is used for being connected with the vehicle body 100 so that the mast mechanism 200 is arranged on the vehicle body 100, and the other side of the luffing mechanism 300 is respectively connected with the cylinders of the main mast 220 and the mast oil cylinder 310; a cylinder connecting seat 311 and a mast connecting seat 312 are integrally formed at the top of the main mast 220, the movable end of the mast cylinder 310 is connected with the top of the main mast 220 through the cylinder connecting seat 311, and the auxiliary mast 230 or the pulley frame 500 adjacent to the main mast 220 is connected with the top of the main mast 220 through the mast connecting seat 312; the mast mechanism 200 is provided with a guide chute 210, the extension direction of the guide chute 210 is the same as the extension direction of the mast mechanism 200, the guide chute 210 is provided with a driving mechanism 400, the driving mechanism 400 can slide on the guide chute, and the driving end of the driving mechanism 400 is connected with a drill 600.

Wherein the mast mechanism 200 comprises a main mast 220 and at least one secondary mast 230, it can be understood that the mast mechanism 200 is composed of the main mast 220 and one secondary mast 230, or the mast mechanism 200 is composed of the main mast 220 and a plurality of secondary masts 230, the number of the secondary masts 230 is selected according to the working height of the drilling tool 600, and the length of the secondary masts 230 can be different or the same, specifically, the number and the length of the secondary masts 230 are selected according to the working height of the drilling tool 600 and the specification of the mast mechanism 200.

Illustratively, the luffing mechanism 300 is triangular, one side of the triangular luffing mechanism 300 is used for being connected with the vehicle body 100 so that the mast mechanism 200 is arranged on the vehicle body 100, two angles of the other side of the triangular luffing mechanism 300 are respectively hinged with the main mast 220 and the mast cylinder 310, and the inclination of the main mast 220 relative to the vehicle body 100 is adjusted through the telescopic amount of the mast cylinder 310 so as to adapt to the operation requirement of the drilling tool 600.

Among the prior art, hydro-cylinder connecting seat 311 and mast connecting seat 312 set up respectively, lead to hydro-cylinder connecting seat 311 and mast connecting seat 312 to occupy the more installation space of main mast 220, make main mast 220 can't accomplish the shortest, in order to solve prior art, this embodiment is through setting up integrated into one piece's hydro-cylinder connecting seat 311 and mast connecting seat 312, can effectual reduction main mast 220's operation height, thereby can effectively improve equipment's utilization ratio.

The embodiment of the utility model provides a mast device, this mast device includes mast mechanism 200, luffing mechanism 300, mast hydro-cylinder 310 and pulley yoke 500, mast mechanism 200 is used for adjusting according to the operation environment needs to adapt to the operation height of drilling tool 600; the luffing mechanism 300 is used to dispose the mast mechanism 200 on the vehicle body 100; the mast cylinder 310 can adjust the working angle of the mast mechanism 200; the sheave bracket 500 is used to support the wire rope in the mast apparatus. Wherein, the mast mechanism 200 comprises a main mast 220 and at least one auxiliary mast 230, if the mast mechanism 200 is only the main mast 220, the mast device is in a low clearance state, and the number of the auxiliary position rods can be increased or decreased according to the working height of the drilling tool 600. One side of the luffing mechanism 300 is adapted to be coupled to the vehicle body 100 such that the mast mechanism 200 is disposed on the vehicle body 100, and the other side of the luffing mechanism 300 is coupled to the main mast 220 and the cylinder body of the mast cylinder 310, respectively, for controlling the tilt angle of the mast mechanism 200 by varying the amount of extension and retraction of the free end of the mast cylinder 310. The cylinder connecting seat 311 and the mast connecting seat 312 are integrally formed at the top of the main mast 220, the cylinder connecting seat 311 and the mast connecting seat 312 are integrally formed, so that the height of the main mast 220 when being connected with the pulley yoke 500 can be effectively reduced, specifically, the movable end of the mast cylinder 310 is connected with the top of the main mast 220 through the cylinder connecting seat 311, the auxiliary mast 230 or the pulley yoke 500 adjacent to the main mast 220 is connected with the top of the main mast 220 through the mast connecting seat 312, and therefore the rotary drilling rig can be constructed in a lower environment, and the utilization rate of the rotary drilling rig is improved. The mast mechanism 200 is provided with a guide chute 210, the extending direction of the guide chute 210 is the same as the extending direction of the mast mechanism 200, the guide chute 210 is provided with a driving mechanism 400, the driving mechanism 400 can slide on the guide chute, that is, the driving mechanism 400 can reciprocate on the guide chute 210, and the driving mechanism 400 is used for being connected with the drilling tool 600 to provide torque for the drilling tool 600 so as to enable the drilling tool 600 to perform construction operation. In conclusion, the mast device can improve the equipment utilization rate of the rotary drilling rig in a low-clearance environment.

Referring to fig. 1, in order to enable the embodiment to hoist a reinforcement cage or a drilling tool 600, in the embodiment, the mast device further includes a main winch 201, an auxiliary winch 202 and a pressurized winch 203, the main winch 201 is disposed on the vehicle body 100, and the auxiliary winch 202 and the pressurized winch 203 are disposed on the main mast 220, respectively.

It should be noted that, in the prior art, the mast mechanism 200 is only provided with the main winch 201 and the pressurization winch 203, and the main winch 201 is arranged on the main mast 220, so that the steel reinforcement cage and the drilling tool 600 cannot be hoisted, and other equipment is required for assistance, so that the construction cost is high, and the construction period is long. In order to solve the above problem, the main mast 220 is provided with the auxiliary winch 202, the auxiliary winch 202 is used for driving the steel wire rope to hoist the steel reinforcement cage or the drilling tool 600, and when the steel reinforcement cage and the drilling tool 600 do not need to be hoisted, the auxiliary winch 202 does not work. In addition, in the embodiment, the main winch 201 is disposed on the vehicle body 100, so that the weight of the main mast 220 can be reduced, and the shearing force applied to the main mast 220 can be further reduced, thereby further improving the construction safety of the mast mechanism 200.

Further, referring to fig. 3 and 4, the pulley yoke 500 includes a primary pulley yoke 510 and a secondary pulley yoke 520, the primary pulley yoke 510 and the secondary pulley yoke 520 are disposed in parallel, the primary winch 201 is connected to the primary pulley yoke 510 through a first wire rope 251, and the secondary pulley yoke 520 is connected to the secondary winch 202 through a second wire rope 252.

As can be seen from the above description, the auxiliary winch 202 is used for driving the wire rope to enable the mast mechanism 200 to hoist the steel reinforcement cage and the drilling tool 600, and the main pulley frame 510 and the auxiliary pulley frame 520 are arranged in parallel, so that the main pulley frame 510 and the auxiliary pulley frame 520 are operated separately, the main pulley frame 510 is used for operating the drilling tool 600, and the auxiliary pulley frame 520 is used for operating when hoisting the steel reinforcement cage or the drilling tool 600. The main pulley frame 510 and the auxiliary pulley frame 520 are respectively provided with a main pulley and an auxiliary pulley, the steel cables comprise a first steel cable 251 and a second steel cable 252, the main winch 201 is used for driving the first steel cable 251 to pass through the main pulley so as to enable the drilling tool 600 to be lifted or pressurized, and the auxiliary winch 202 is used for driving the second steel cable 252 to pass through the auxiliary pulley so as to enable the reinforcement cage or the drilling tool 600 to be hoisted. The diameters and lengths of the first wire rope 251 and the second wire rope 252 are not limited, and those skilled in the art can set the diameters and lengths according to actual requirements as long as the operation requirements of the device can be met.

Referring to fig. 2 and 3, as can be seen from the above, the main winch 201 is used for driving the first wire rope 251 to pass through the main pulley to lift or pressurize the drilling tool 600, and the auxiliary winch 202 is used for driving the second wire rope 252 to pass through the auxiliary pulley to hoist the reinforcement cage or the drilling tool 600, in order to prevent interference between the first wire rope 251 and the second wire rope 252, further, the mast apparatus in this embodiment further includes a guide pulley 240 disposed on the auxiliary mast 230, and the guide pulley 240 is used for guiding the first wire rope 251 and the second wire rope 252.

Alternatively, in this embodiment, the guide pulley 240 includes a first guide wheel, a second guide wheel and a guide rod arranged between the first guide wheel and the second guide wheel, the first wire rope 251 is located between the first guide wheel and the guide rod, and the second wire rope 252 is located between the second guide wheel and the guide rod.

The sizes and specifications of the first guide wheel, the second guide wheel and the guide rod are not limited, and those skilled in the art can design the guide rod according to actual needs as long as the first steel wire rope 251 and the second steel wire rope 252 can be guided.

Referring to fig. 3 and 5, optionally, the driving mechanism 400 includes a power connection frame 420 and a power head 410 which are fixedly connected, the power connection frame 420 is disposed on the guide chute 210, a pulling pulley and a pressing pulley are further sequentially disposed on the power connection frame 420 along the extending direction of the guide chute 210, a main pulley is disposed on the main pulley frame 510, one end of the first wire rope 251 sequentially passes through the main winch 201, the guide pulley 240, the main pulley and the pulling pulley to pull up the drilling tool 600, and the other end of the second wire rope 252 sequentially passes through the pressing winch 203 and the pressing pulley to press the drilling tool 600.

Illustratively, one end of the first wire rope 251 passes through the main winch 201, the guide pulley 240, the main pulley frame 510 and the pulling pulley in sequence and is fixed on the mast mechanism 200, the other end of the second wire rope 252 passes through the pressurizing winch 203 and the pressurizing pulley in sequence and is fixed on the mast mechanism 200, and the first wire rope 251 is driven by the pressurizing winch 203 and the main winch 201 respectively, so that the wire rope drives the power head 410 to pressurize downwards or pull upwards along the guide chute 210. The power head 410 is used to provide rotational torque to the drill 600 to cause the drill 600 to drill a hole.

Further, in order to enable the mast mechanism 200 to implement multi-operating mode operation, the primary pulley yoke 510 and the secondary pulley yoke 520 are detachably connected to the mast mechanism 200 respectively in this embodiment.

Referring to fig. 1 and 2, if the mast mechanism 200 needs to operate in a low clearance state, the sub mast 230 on the top of the main mast 220 needs to be detached, and the pulley frame 500 needs to be connected to the top of the main mast 220, and referring to fig. 1, the mast mechanism 200 is in a low clearance state. If the mast mechanism 200 needs to work in a normal state, it is only necessary to connect at least one secondary mast 230 to the top of the primary mast 220 and connect the pulley frame 500 to the top of the secondary mast 230 far from the primary mast 220, please refer to fig. 2, which shows the normal state of the mast mechanism 200.

Further, in order to prevent the driving mechanism 400 from being separated from the guide chute 210, referring to fig. 6, at least one set of limiting components 430 is disposed on a sidewall of the guide chute 210 in the present embodiment for limiting the driving mechanism 400.

It should be noted that the limiting assemblies 430 may be a group or a plurality of groups, which is determined according to the weight of the driving mechanism 400 and the reaction force applied to the operation of the drilling tool 600, and if the driving mechanism 400 has a heavy weight and the reaction force applied to the operation of the drilling tool 600 is also large, the multiple groups of limiting assemblies 430 can uniformly reduce the local stress of the guide chute 210, so as to improve the safety of the operation of the drilling tool 600. The more the limiting assemblies 430 are, the better, the more the limiting assemblies 430 are, the too much the weight of the mast mechanism 200 can be made too large, if the limiting assemblies 430 are too few, the local stress applied to the guide chute 210 can damage the guide chute 210 under the condition that the weight of the driving mechanism 400 is large and the reaction force applied to the drilling tool 600 in the operation process is large, so that potential safety hazards can occur. Therefore, a person skilled in the art can correspondingly set the appropriate number of the limiting assemblies 430 according to actual requirements. The specific structure of the position-limiting assembly 430 is not limited herein, for example, the position-limiting assembly 430 is a structure of a bolt and a nut, which are matched, and the above description is only illustrative and not limiting, as long as the position-limiting effect on the driving mechanism 400 can be achieved.

The utility model discloses on the other hand of embodiment provides a dig rig soon, include: the vehicle body 100 comprises a lower vehicle assembly, a rotary support and an upper vehicle assembly, the upper vehicle assembly is connected to the lower vehicle assembly through the rotary support, and the mast device is arranged on the upper vehicle assembly.

Wherein, the main winch 201 in the mast device is arranged on the upper vehicle assembly, and the mast mechanism 200 is connected with the upper vehicle assembly through the luffing mechanism 300.

The embodiment of the utility model provides a dig rig soon adopts foretell mast device, through setting up foretell mast device, can high dig the rate of equipment utilization of rig under the low headroom environment soon.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mast apparatus, comprising: the mast mechanism comprises a main mast and at least one auxiliary mast, one side of the luffing mechanism is used for being connected with a vehicle body so that the mast mechanism is arranged on the vehicle body, and the other side of the luffing mechanism is respectively connected with cylinder bodies of the main mast and the mast oil cylinder; an oil cylinder connecting seat and a mast connecting seat are integrally formed at the top of the main mast, the movable end of the mast oil cylinder is connected with the top of the main mast through the oil cylinder connecting seat, and an auxiliary mast or the pulley yoke adjacent to the main mast is connected with the top of the main mast through the mast connecting seat; the mast mechanism is provided with a guide sliding groove, the extension direction of the guide sliding groove is the same as that of the mast mechanism, the guide sliding groove is provided with a driving mechanism, the driving mechanism can slide on the guide sliding groove, and the driving mechanism is used for being connected with a drilling tool.

2. A mast apparatus according to claim 1, further comprising a main hoist disposed on the vehicle body, a sub hoist and a pressurizing hoist disposed on the main mast, respectively.

3. A mast apparatus according to claim 2, wherein the sheave bracket includes a primary sheave bracket and a secondary sheave bracket, the primary sheave bracket and the secondary sheave bracket being arranged in parallel, the primary hoist being connected to the primary sheave bracket by a first wire rope, and the secondary sheave bracket being connected to the secondary hoist by a second wire rope.

4. A mast apparatus according to claim 3, further comprising a guide pulley provided on the secondary mast for guiding the first wire rope and the second wire rope.

5. A mast apparatus according to claim 4, wherein the guide pulley includes a first guide pulley, a second guide pulley, and a guide bar provided between the first guide pulley and the second guide pulley, the first wire rope being positioned between the first guide pulley and the guide bar, and the second wire rope being positioned between the second guide pulley and the guide bar.

6. A mast apparatus according to claim 4, wherein the driving mechanism includes a power connection frame and a power head fixedly connected to each other, the power connection frame is disposed on the guide chute, and a pulling pulley and a pressing pulley are sequentially disposed on the power connection frame along an extending direction of the guide chute.

7. A mast apparatus according to claim 6, wherein a main sheave is provided on the main sheave frame, one end of the first wire rope passes through the main hoist, the guide sheave, the main sheave and the pulling sheave in this order to pull up the drill, and the other end of the first wire rope passes through the pressurizing hoist and the pressurizing sheave in this order to pressurize the drill.

8. A mast apparatus according to claim 3, wherein the primary sheave frame and the secondary sheave frame are each detachably connected to the mast mechanism.

9. A mast apparatus according to claim 1, wherein the guide runner has at least one set of limit stops disposed on a side wall thereof for limiting the drive mechanism.

10. A rotary drilling rig, characterized by comprising a vehicle body and the mast device of any one of claims 1-9, wherein the vehicle body comprises a lower vehicle assembly, a rotary support and an upper vehicle assembly, the upper vehicle assembly is connected to the lower vehicle assembly through the rotary support, and the mast device is arranged on the upper vehicle assembly.