Long spiral drilling machine

Abstract

The utility model provides a long spiral drilling machine, and belongs to the technical field of drilling machines. The long spiral drilling machine comprises a vehicle body and a plurality of extension supporting assemblies arranged on the two sides of the vehicle body, each extension supporting assembly comprises an outer rod, a rotary driving mechanism, an inner rod, a telescopic driving mechanism and a hydraulic supporting leg, one end of each outer rod is rotationally connected with the vehicle body, and the other end of each outer rod is open. Each outer rod is connected with a rotary driving mechanism, the rotary driving mechanisms can drive the outer rods to rotate so as to adjust the orientation of the open ends of the outer rods, inner rods are arranged in the outer rods in a sliding mode, one ends of the inner rods stretch out of the open ends of the outer rods, hydraulic supporting legs are arranged at the stretching ends of the inner rods, and a telescopic driving mechanism is arranged in each outer rod. The extension length of the inner rod can be adjusted by the telescopic driving mechanism, the drop point of the hydraulic support leg can be selected at a relatively flat position through the rotary driving mechanism and the telescopic driving mechanism, and the whole long spiral drilling machine can be supported more stably.

Description

Technical Field

[0001] The utility model belongs to the technical field of drilling machines, and more specifically relates to a long spiral drilling machine. Background Art

[0002] At present, long spiral drilling machines are highly efficient and highly adaptable to different geological conditions during construction, so they have been widely used in various types of houses and civil buildings, especially in the current field of building pile foundation engineering. The existing long spiral drilling machines include a traveling device, a drilling tower, a power head and a long spiral drill rod, etc. The traveling device is provided with a vehicle body, on which a high drilling tower and a winch are arranged, and a power head is slidably arranged on the drilling tower. The power is connected to the long spiral drill rod and is used to drive the long spiral drill rod to rotate and drill holes. Two hydraulic legs are arranged on each side of the head vehicle body. Before the long spiral drilling machine starts working, the traveling device first moves to the construction position, and then controls the hydraulic legs to descend and contact the ground, supports the entire long spiral drilling machine, ensures the stability of the long spiral drilling machine, and then operates.

[0003] The long auger rig itself is relatively high, with poor stability and the risk of tipping over. The construction site environment of the long auger rig is relatively complex. In the existing technology, the hydraulic legs of the long auger rig are fixed on both sides of the vehicle body, and the support point of the hydraulic legs cannot be adjusted. Facing the uneven working environment, there are safety hazards. Utility Model Content

[0004] The utility model aims to provide a long spiral drilling machine to solve the technical problems in the prior art that the hydraulic legs are fixedly arranged on both sides of the vehicle body, the supporting points of the hydraulic legs cannot be adjusted, and there are safety hazards in the face of uneven working environments.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a long spiral drilling machine is provided, including a vehicle body, a plurality of extension support assemblies, a drilling tower is provided at the front of the vehicle body, a power head and a long spiral drill rod are provided on the drilling tower, the power head is connected to the long spiral drill rod, and a walking device is provided under the vehicle body; a plurality of extension support assemblies are arranged on the left and right sides of the vehicle body. Among them, each extension support assembly includes an outer rod, a rotary drive mechanism, an inner rod, a telescopic drive mechanism and a hydraulic support leg. One end of the outer rod is rotatably connected to the vehicle body along a vertical axis, and the other end is open; the two ends of the rotary drive mechanism are respectively connected to the outer rod and the vehicle body, and are used to drive the outer rod to rotate; the inner rod is inserted in the outer rod, and is slidably matched with the outer rod, and can be extended from the open end of the outer rod; the telescopic drive mechanism is arranged in the outer rod, and is connected to the inner rod, and is used to adjust the length of the inner rod extending out of the outer rod; the hydraulic support leg is connected to the outer end of the inner rod, and is used to contact the ground for support.

[0006] In combination with the above technical solution, in a possible implementation method, the telescopic drive mechanism includes a gear, a rack and a driving part, the gear is rotatably arranged inside the outer rod; the rack is slidably arranged inside the outer rod along the length direction of the outer rod, and one end is connected to the inner rod and meshed with the gear; the driving part is respectively connected to the outer rod and the gear, and is used to drive the gear to rotate.

[0007] In combination with the above technical solution, in a possible implementation method, a slide groove is provided on the inner wall of the outer rod, a slider is provided on the rack, and the slider is slidably arranged in the slide groove; the outer rod and the inner rod are both square tube structures; there is a gap between the outer wall of the inner rod and the inner wall of the outer rod; the slide groove is located at the bottom of the outer rod, a friction pad is fixedly provided at the bottom of the slide groove, and an anchoring tooth is provided on the side of the slider facing the bottom of the slide groove.

[0008] In combination with the above technical solution, in a possible implementation, the driving part includes a rotating handle, and the rotating shaft of the gear is extended from the outer rod and connected to the rotating handle.

[0009] In combination with the above technical solution, in a possible implementation, the driving part includes a telescopic motor, the telescopic motor is connected to the outer rod, and the power output end is connected to the rotating shaft of the gear.

[0010] In combination with the above technical solution, in a possible implementation, the rotary drive mechanism is a rotary hydraulic cylinder, one end of the rotary hydraulic cylinder is rotatably connected to the vehicle body, and the other end of the rotary hydraulic cylinder is rotatably connected to the outer rod.

[0011] In combination with the above technical solution, in a possible implementation, the long spiral drilling rig also includes a controller, and the controller is electrically connected to the telescopic motor, the rotating hydraulic cylinder and the hydraulic legs.

[0012] In combination with the above technical solution, in a possible implementation, a receiving groove is provided on both the left and right sides of the vehicle body, and the rotary hydraulic cylinder extends into the receiving groove and is connected to the vehicle body.

[0013] In combination with the above technical solution, in a possible implementation method, the rotation drive mechanism includes a first screw, a second screw and a long nut, the first screw is rotationally connected to the outer rod; the second screw is rotationally connected to the vehicle body, and the thread rotation directions of the first screw and the second screw are opposite; the long nut is threadedly connected to the first screw and the second screw.

[0014] In combination with the above technical solution, in a possible implementation method, a winch and a supporting hydraulic cylinder are provided on the vehicle body, the vehicle body is rotatably connected to the drilling tower, one end of the supporting hydraulic cylinder is connected to the vehicle body, and the other end is connected to the drilling tower. The supporting hydraulic cylinder is used to push the drilling tower to be retracted or to keep it upright. A support is slidably arranged on the drilling tower, the support is connected to the winch, the winch is used to pull the support up and down, and the power head is arranged on the support.

[0015] The beneficial effect of the long spiral drilling machine provided by the utility model is that compared with the prior art, the utility model is provided with multiple extension support assemblies on both sides of the vehicle body, and each extension support assembly includes an outer rod, a rotating drive mechanism, an inner rod, a telescopic drive mechanism and a hydraulic support leg. One end of the outer rod is rotatably connected to the vehicle body, and the other end of the outer rod is open. Each outer rod is connected to a rotating drive mechanism, and the rotating drive mechanism can drive the outer rod to rotate to adjust the direction of the open end of the outer rod. An inner rod is slidably arranged in the outer rod, and one end of the inner rod extends from the open end of the outer rod, and a hydraulic support leg is arranged at one end of the inner rod extending from the outer rod. At the same time, a telescopic drive mechanism is arranged in each outer rod, and the telescopic drive mechanism can adjust the extension length of the inner rod. When the long spiral drilling machine encounters a somewhat uneven working environment, the position of the hydraulic support leg at the end of the inner rod can be adjusted by the rotating drive mechanism and the telescopic drive mechanism, and the landing point of the hydraulic support leg can be selected in a relatively flat place to ensure more stable support for the entire long spiral drilling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A schematic diagram of the structure of a long spiral drilling rig provided by an embodiment of the utility model;

[0018] Figure 2 A structural diagram of a rotating push mechanism of another embodiment is provided for the embodiment of the utility model;

[0019] Figure 3 A schematic diagram of the internal structure of the outer rod provided in an embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the gear and rack structure provided in an embodiment of the utility model.

[0021] Among them, the reference numerals in the figures are as follows:

[0022] 1. Drilling tower; 2. Power head; 3. Long spiral drill rod; 4. Telescopic motor; 5. Hydraulic outrigger; 6. Support; 7. Support hydraulic cylinder; 8. Vehicle body; 9. Outer rod; 10. Inner rod; 11. Rotating hydraulic cylinder; 12. Receiving groove; 13. Support plate; 14. Sliding block; 15. First screw rod; 16. Second screw rod; 17. Long nut; 18. Gear; 19. Rack; 20. Rotating handle; 21. Slide. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are only part of the embodiments of the present application, not all of the embodiments, and the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0024] It should be further explained that the drawings and implementation modes of the present invention mainly describe the concept of the present invention. On the basis of this concept, some specific forms and settings of connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, on the premise that those skilled in the art understand the concept of the present invention, those skilled in the art can implement the above-mentioned specific forms and settings in a well-known manner.

[0025] When an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0026] The directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. The directions or positional relationships indicated by the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, and "several" means one or more, unless otherwise clearly and specifically defined.

[0028] The long spiral drilling machine provided by the utility model is now described.

[0029] like Figure 1 and Figure 2As shown, the first embodiment of the utility model provides a long spiral drilling machine, including a vehicle body 8, a plurality of extension support assemblies, a drilling tower 1 is provided at the front of the vehicle body 8, a power head 2 and a long spiral drill rod 3 are provided on the drilling tower 1, the power head 2 is connected to the long spiral drill rod 3, and a walking device is provided under the vehicle body 8; a plurality of extension support assemblies are arranged on the left and right sides of the vehicle body 8. Among them, each extension support assembly includes an outer rod 9, a rotation drive mechanism, an inner rod 10, a telescopic drive mechanism and a hydraulic support leg 5. One end of the outer rod 9 is connected to the vehicle body 8 along the vertical axis of rotation, and the other end is open; the two ends of the rotation drive mechanism are respectively connected to the outer rod 9 and the vehicle body 8, and are used to drive the outer rod 9 to rotate; the inner rod 10 is inserted in the outer rod 9, and is slidably matched with the outer rod 9, and can be extended from the open end of the outer rod 9; the telescopic drive mechanism is arranged in the outer rod 9, and is connected to the inner rod 10, and is used to adjust the length of the inner rod 10 extending out of the outer rod 9; the hydraulic support leg 5 is connected to the outer end of the inner rod 10, and is used to contact the ground for support.

[0030] Compared with the prior art, the long spiral drilling machine provided in this embodiment is provided with a plurality of extension support assemblies on both sides of the vehicle body 8, and each extension support assembly includes an outer rod 9, a rotation drive mechanism, an inner rod 10, a telescopic drive mechanism and a hydraulic support leg 5. One end of the outer rod 9 is rotatably connected to the vehicle body 8, and the other end of the outer rod 9 is open. Each outer rod 9 is connected to a rotation drive mechanism, and the rotation drive mechanism can drive the outer rod 9 to rotate to adjust the direction of the open end of the outer rod 9. An inner rod 10 is slidably arranged in the outer rod 9, and one end of the inner rod 10 extends from the open end of the outer rod 9, and a hydraulic support leg 5 is arranged at the end of the inner rod 10 extending from the outer rod 9. At the same time, a telescopic drive mechanism is arranged in each outer rod 9, and the telescopic drive mechanism can adjust the extension length of the inner rod 10. When the long spiral drilling machine encounters a somewhat uneven working environment, the position of the hydraulic support leg 5 at the end of the inner rod 10 can be adjusted by the rotation drive mechanism and the telescopic drive mechanism, and the landing point of the hydraulic support leg 5 can be selected in a relatively flat place to ensure more stable support for the entire long spiral drilling machine.

[0031] The walking device in this embodiment can be a wheel structure in the prior art or a crawler structure.

[0032] In this embodiment, when the long spiral drill is in use, it is first opened to the drilling position, and then the fulcrum positions of the four hydraulic legs 5 are adjusted through the rotary drive mechanism and the telescopic drive mechanism. After finding a relatively flat position, the hydraulic legs 5 are controlled to fall to support the long spiral drill, and the drilling operation is carried out when the support is stable.

[0033] In this embodiment, a support plate 13 is provided at the lower end of the hydraulic support leg 5, and the support plate 13 is used to increase the contact area between the hydraulic support leg 5 and the ground to provide more stable support.

[0034] like Figure 3 to Figure 4As shown, the utility model provides a specific embodiment based on the first embodiment as follows: the telescopic driving mechanism includes a gear 18, a rack 19 and a driving part, the gear 18 is rotatably arranged in the outer rod 9; the rack 19 is slidably arranged in the outer rod 9 along the length direction of the outer rod 9, and one end is connected to the inner rod 10 and meshed with the gear 18; the driving part is respectively connected to the outer rod 9 and the gear 18, and is used to drive the gear 18 to rotate.

[0035] In this embodiment, the gear 18 is meshed with the rack 19 . When the gear 18 is rotated, the rack 19 moves along the length direction of the outer rod 9 , driving the inner rod 10 to perform telescopic movement to adjust the distance that the inner rod 10 extends from the outer rod 9 .

[0036] like Figure 3 to Figure 4 As shown, the utility model provides a specific implementation method based on the above implementation method as follows: a slide groove 21 is provided on the inner wall of the outer rod 9, and a slider 14 is provided on the rack 19, and the slider 14 is slidably arranged in the slide groove 21; the outer rod 9 and the inner rod 10 are both square tube structures; there is a gap between the outer wall of the inner rod 10 and the inner wall of the outer rod 9; the slide groove 21 is located at the bottom of the outer rod 9, and a friction pad is fixedly provided at the bottom of the slide groove 21, and an anchoring tooth is provided on the side of the slider 14 facing the bottom of the slide groove 21, and the cooperation between the anchoring tooth and the friction pad is used to press the anchoring tooth on the friction pad when the hydraulic support leg 5 is extended, so as to fix the outer rod 9 and the inner rod 10 to avoid slippage; and after the hydraulic support leg 5 is retracted, the pressure between the anchoring tooth and the friction pad is reduced, and the slider 14 can move smoothly.

[0037] In this embodiment, the friction pad can be made of rubber or linen, and is provided at the bottom of the slide groove 21 by means of adhesion. The anchoring teeth are tooth structures, and are provided on the bottom surface of the inner end of the inner rod 10. When the inner rod 10 extends a certain length beyond the outer rod 9, the anchoring teeth on the inner rod 10 facilitate contact with the friction pad. Although the friction force increases at this time, it does not affect the driving unit driving the inner rod 10 to slide. When the inner rod 10 is extended to a suitable position, the hydraulic support leg 5 falls down for support. At this time, the inner rod 10 forms a lever structure with the open end of the outer rod 9 as a fulcrum. One end of the inner rod 10 provided with the anchoring teeth is pressed down, and the friction between the anchoring teeth and the friction pad increases, thereby preventing the inner rod 10 from slipping. When the hydraulic support leg 5 is retracted, the pressure is released, and the friction between the anchoring teeth and the friction pad decreases.

[0038] like Figure 3 As shown, the present invention provides a specific implementation mode based on the above implementation mode as follows: the driving part includes a rotating handle 20 , and the rotating shaft of the gear 18 is extended from the outer rod 9 and connected to the rotating handle 20 .

[0039] In this embodiment, the length of the inner rod 10 extending from the outer rod 9 can be adjusted manually by rotating the rotating handle 20 according to actual conditions.

[0040] like Figure 1 and Figure 2 As shown, the utility model provides a specific implementation method based on the above implementation method as follows: the driving part includes a telescopic motor 4, the telescopic motor 4 is connected to the outer rod 9, and the power output end is connected to the rotating shaft of the gear 18.

[0041] like Figure 1 As shown, the utility model provides a specific implementation method based on the above implementation method as follows: the rotation drive mechanism is a rotation hydraulic cylinder 11, one end of the rotation hydraulic cylinder 11 is rotationally connected to the vehicle body 8, and the other end of the rotation hydraulic cylinder 11 is rotationally connected to the outer rod 9.

[0042] like Figure 1 As shown, the utility model provides a specific implementation mode based on the above implementation mode as follows: the long spiral drilling machine also includes a controller, and the controller is electrically connected to the telescopic motor 4, the rotating hydraulic cylinder 11 and the hydraulic support leg 5.

[0043] In this embodiment, the controller is electrically connected to the telescopic motor 4, the rotating hydraulic cylinder 11, and the hydraulic support leg 5. The controller can control the actions of the rotating hydraulic cylinder 11, the telescopic motor 4, and the hydraulic support leg 5 in sequence to adjust the landing point of the hydraulic support leg 5. The electric adjustment frees up manpower.

[0044] like Figure 1 As shown, the utility model provides a specific implementation method based on the above implementation method as follows: both left and right sides of the vehicle body 8 are provided with a receiving groove 12, and the rotating hydraulic cylinder 11 extends into the receiving groove 12 and is connected to the vehicle body 8.

[0045] In this embodiment, a receiving groove 12 is provided on the left and right sides of the vehicle body 8. When it is no longer needed, the rotating hydraulic cylinder 11 drives the outer rod 9 to rotate toward the vehicle body 8, and the rotating hydraulic cylinder 11 can be retracted into the receiving groove 12 to prevent the long spiral drill rod 3 from occupying too wide a road when driving on the road.

[0046] like Figure 2 As shown, the utility model provides a specific implementation method based on the above implementation method as follows: the rotation drive mechanism includes a first screw rod 15, a second screw rod 16 and a long nut 17, the first screw rod 15 is rotationally connected to the outer rod 9; the second screw rod 16 is rotationally connected to the vehicle body 8, and the thread rotation directions of the first screw rod 15 and the second screw rod 16 are opposite; the long nut 17 is threadedly connected to the first screw rod 15 and the second screw rod 16.

[0047] In this embodiment, the spiral rotation directions of the first screw 15 and the second screw 16 are opposite, and the long nut 17 is threadedly connected to the first screw 15 and the second screw 16 at the same time. When the long nut 17 is rotated, the first screw 15 and the second screw 16 move in opposite directions, thereby pushing the outer rod 9 to rotate.

[0048] like Figure 1As shown, the utility model provides a specific implementation method based on the above implementation method as follows: a winch and a supporting hydraulic cylinder 7 are provided on the vehicle body 8, the vehicle body 8 is rotatably connected to the drilling tower 1, one end of the supporting hydraulic cylinder 7 is connected to the vehicle body 8, and the other end is connected to the drilling tower 1, the supporting hydraulic cylinder 7 is used to push the drilling tower 1 to be retracted or to maintain an upright state, a support 6 is slidably arranged on the drilling tower 1, the support 6 is connected to the winch, the winch is used to pull the support 6 to move up and down, and the power head 2 is arranged on the support 6.

[0049] In this embodiment, in the non-working state, the support hydraulic cylinder 7 is retracted, and the drilling tower 1 is rotated, folded, and stored on the vehicle body 8. When the long spiral drill rod 3 is needed for drilling, the support hydraulic cylinder 7 is extended to push the drilling tower 1 into an upright state. Then the power head 2 drives the long spiral drill rod 3 to rotate, the winch releases the wire rope, and the support 6 moves downward under the action of gravity to perform the drilling operation.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A long spiral drilling machine, characterized in that: include: A vehicle body (8) is provided with a drilling tower (1) at the front, a power head (2) and a long spiral drilling rod (3) are provided on the drilling tower (1), the power head (2) is connected to the long spiral drilling rod (3), and a walking device is provided below the vehicle body (8); A plurality of extension support components are arranged on the left and right sides of the vehicle body (8); Wherein, each of the extension support components comprises: An outer rod (9), one end of which is rotatably connected to the vehicle body (8) along a vertical rotation axis, and the other end of which is open; A rotation driving mechanism, the two ends of which are respectively connected to the outer rod (9) and the vehicle body (8), and are used to drive the outer rod (9) to rotate; An inner rod (10) is inserted into the outer rod (9), slidably matched with the outer rod (9), and can extend from the open end of the outer rod (9); A telescopic driving mechanism, arranged in the outer rod (9) and connected to the inner rod (10), for adjusting the length of the inner rod (10) extending out of the outer rod (9); The hydraulic support leg (5) is connected to the outer end of the inner rod (10) and is used for contacting the ground for support.

2. The long spiral drilling machine according to claim 1, characterized in that: The telescopic driving mechanism comprises: a gear (18) rotatably disposed inside the outer rod (9); A rack (19) is slidably disposed inside the outer rod (9) along the length direction of the outer rod (9), one end of which is connected to the inner rod (10) and meshes with the gear (18); A driving part is connected to the outer rod (9) and the gear (18) respectively, and is used to drive the gear (18) to rotate.

3. The long spiral drilling machine according to claim 2, characterized in that: A slide groove (21) is provided on the inner wall of the outer rod (9), a slider (14) is provided on the rack (19), and the slider (14) is slidably arranged in the slide groove (21); the outer rod (9) and the inner rod (10) are both square tube structures; there is a gap between the outer wall of the inner rod (10) and the inner wall of the outer rod (9); the slide groove (21) is located at the bottom of the outer rod (9), a friction pad is fixedly provided at the bottom of the slide groove (21), and the slider (14) is provided with an anchoring tooth on the side facing the bottom of the slide groove (21).

4. The long spiral drilling machine according to claim 3, characterized in that: The driving part comprises a rotating handle (20), and the rotating shaft of the gear (18) extends from the outer rod (9) and is connected to the rotating handle (20).

5. The long spiral drilling machine according to claim 3, characterized in that: The driving part comprises a telescopic motor (4), the telescopic motor (4) is connected to the outer rod (9), and the power output end is connected to the rotating shaft of the gear (18).

6. The long spiral drilling machine according to claim 5, characterized in that: The rotary drive mechanism is a rotary hydraulic cylinder (11), one end of which is rotationally connected to the vehicle body (8), and the other end of which is rotationally connected to the outer rod (9).

7. The long spiral drilling machine according to claim 6, characterized in that: The long spiral drilling machine also includes a controller, which is electrically connected to the telescopic motor (4), the rotating hydraulic cylinder (11) and the hydraulic support leg (5).

8. The long spiral drilling machine according to claim 6, characterized in that: The left and right sides of the vehicle body (8) are both provided with receiving grooves (12), and the rotating hydraulic cylinder (11) extends into the receiving grooves (12) and is connected to the vehicle body (8).

9. The long spiral drilling machine according to claim 1, characterized in that: The rotary drive mechanism comprises: A first screw rod (15) is rotatably connected to the outer rod (9); A second screw rod (16) is rotatably connected to the vehicle body (8), wherein the first screw rod (15) and the second screw rod (16) have opposite thread directions; A long nut (17) is threadedly connected to the first screw rod (15) and the second screw rod (16).

10. The long spiral drilling machine according to claim 1, characterized in that: A winch and a supporting hydraulic cylinder (7) are provided on the vehicle body (8); the vehicle body (8) is rotatably connected to the drilling tower (1); one end of the supporting hydraulic cylinder (7) is connected to the vehicle body (8) and the other end is connected to the drilling tower (1); the supporting hydraulic cylinder (7) is used to push the drilling tower (1) to be retracted or to maintain an upright state; a support (6) is slidably provided on the drilling tower (1); the support (6) is connected to the winch; the winch is used to pull the support (6) to move up and down; and the power head (2) is arranged on the support (6).

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