CN215761476U

CN215761476U - Power head and rotary drilling rig

Info

Publication number: CN215761476U
Application number: CN202122434529.2U
Authority: CN
Inventors: 姚飞; 舒伟才; 马玉丽
Original assignee: Beijing Sany Intelligent Technology Co Ltd
Current assignee: Beijing Sany Intelligent Technology Co Ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-02-08
Anticipated expiration: 2031-10-09

Abstract

The utility model relates to the technical field of engineering machinery, in particular to a power head and a rotary drilling rig. The power head comprises a reduction gearbox, a yoke plate structure, a sliding frame and a driving structure, wherein the yoke plate structure is detachably connected to the top of the reduction gearbox; the sliding frame is arranged on the side part of the reduction gearbox, and the upper end and the lower end of the sliding frame are respectively detachably connected with the yoke plate structure and the reduction gearbox through pin shafts; the driving structure comprises a driving body and a driving shaft, and the driving shaft is telescopically connected to one end of the driving body; the driving shaft is a pin shaft. According to the power head provided by the utility model, the driving shaft is used as the pin shaft and stretches out and draws back under the driving of the driving structure, so that the upper end and the lower end of the sliding frame are respectively and automatically disassembled and assembled with the connecting plate structure and the reduction gearbox, manual operation of an operator is not needed, the disassembly and assembly are simple, time and labor are saved, and no safety risk exists in the disassembly and assembly process.

Description

Power head and rotary drilling rig

Technical Field

The utility model relates to the technical field of engineering machinery, in particular to a power head and a rotary drilling rig.

Background

The rotary drilling rig is used as a pile foundation construction machine suitable for hole forming operation in building foundation engineering, is increasingly applied in modern traffic and building industries, is mainly suitable for soil layer construction of sandy soil, cohesive soil, silty soil and the like, and is widely applied to various foundation construction of cast-in-place piles, foundation reinforcement and the like.

The rotary drilling rig comprises a power head, the power head comprises a sliding frame, a connecting plate and a reduction gearbox, the sliding frame is connected with the connecting plate through a pin shaft and a pressing plate, and the reduction gearbox is connected with the sliding frame through a pin shaft and a pressing plate. The conventional rotary drilling rig is generally large in size, the power head is high in connection position, time and labor are wasted when a pin shaft is mounted or dismounted, the dismounting is complex, and safety risks exist in the dismounting process.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to overcome the defects that the dismounting and mounting of the pin shaft of the sliding frame are complex and the safety risk exists in the dismounting and mounting process in the prior art, so that the power head and the rotary drilling rig are provided.

In order to solve the problems, the utility model provides a power head which comprises a reduction gearbox, a yoke plate structure, a sliding frame and a driving structure, wherein the yoke plate structure is detachably connected to the top of the reduction gearbox; the sliding frame is arranged on the side part of the reduction gearbox, and the upper end and the lower end of the sliding frame are respectively detachably connected with the yoke plate structure and the reduction gearbox through pin shafts; the driving structure comprises a driving body and a driving shaft, wherein the driving shaft is telescopically connected to one end of the driving body, and the driving shaft is a pin shaft.

The driving structure of the power head provided by the utility model is a hydraulic driving structure.

The power head provided by the utility model has a driving structure of a hydraulic oil cylinder, and a piston rod of the hydraulic oil cylinder is a pin shaft.

According to the power head provided by the utility model, the piston rod is provided with the guide structure, and the guide structure is arranged at one end of the piston rod, which is far away from the oil cylinder body of the hydraulic oil cylinder.

According to the power head provided by the utility model, the guide structure is a chamfer arranged on the piston rod.

According to the power head provided by the utility model, the connecting flanges are arranged at the bottoms of the driving structures, and the group of driving structures are detachably connected with the top of the yoke plate structure through the connecting flanges; the other group of driving structures are detachably connected with the top of the reduction gearbox through a connecting flange.

According to the power head provided by the utility model, the top of the yoke plate structure comprises a first fixing plate and a second fixing plate, the first fixing plate is provided with a first connecting hole, and a group of driving structures are detachably connected with the first fixing plate through a connecting flange; the second fixing plates are arranged below the first fixing plates at intervals and are parallel to the first fixing plates, and second connecting holes are formed in the second fixing plates; the top end of the sliding frame is provided with a convex first connecting part, the first connecting part is clamped between the first fixing plate and the second fixing plate, and a first matching hole is formed in the first connecting part; the first connecting hole, the first matching hole and the second connecting hole are connected in sequence through the pin shaft.

The power head provided by the utility model is characterized in that the connecting plate structure comprises a first connecting plate, a second connecting plate and a connecting rod, wherein the first connecting plate is connected to one side of the top of the reduction gearbox; the second yoke plate is connected to the other side of the top of the reduction gearbox and arranged in parallel with the first yoke plate, and a group of first fixing plates and second fixing plates are arranged on the top of the second yoke plate; the two ends of the connecting rod are respectively connected with the top of the first yoke plate and the top of the second yoke plate.

The power head comprises a reduction gearbox and a power head, wherein the reduction gearbox comprises a third fixing plate and a fourth fixing plate, the third fixing plate extends out from an upper panel of the reduction gearbox towards a sliding frame, and a third connecting hole is formed in the third fixing plate; the group of driving structures are detachably connected with the third fixing plate through connecting flanges; the fourth fixing plate extends out from the lower panel of the reduction gearbox towards the sliding frame, and a fourth connecting hole is formed in the fourth fixing plate; the bottom end of the sliding frame is provided with a convex second connecting part, the second connecting part is clamped between the third fixing plate and the fourth fixing plate, and a second matching hole is formed in the second connecting part; the third connecting hole, the second matching hole and the fourth connecting hole are connected in sequence through a pin shaft.

The utility model also provides a rotary drilling rig which comprises the power head.

The utility model has the following advantages:

1. the power head provided by the utility model comprises a reduction gearbox, a yoke plate structure, a sliding frame and a driving structure, wherein the yoke plate structure is detachably connected to the top of the reduction gearbox; the sliding frame is arranged on the side part of the reduction gearbox, and the upper end and the lower end of the sliding frame are respectively detachably connected with the yoke plate structure and the reduction gearbox through pin shafts; the driving structure comprises a driving body and a driving shaft, wherein the driving shaft is telescopically connected to one end of the driving body, and the driving shaft is a pin shaft.

The drive shaft is used as the round pin axle, and is flexible under the drive of drive structure to with the upper and lower both ends of balladeur train respectively with the automatic dismouting of yoke plate structure and reducing gear box, need not operator manual operation, the dismouting is simple, labour saving and time saving, and there is not safe risk among the dismouting in-process. And no pin shaft is required to be additionally arranged, so that parts are reduced.

2. According to the power head provided by the utility model, the driving structure is the hydraulic oil cylinder, the piston rod of the hydraulic oil cylinder is the pin shaft, the pin shaft is not required to be additionally arranged, the connection between the upper end of the sliding frame and the connecting plate structure and the connection between the lower end of the sliding frame and the reduction gearbox can be realized only through the hydraulic oil cylinder, and the number of parts is reduced.

3. According to the power head provided by the utility model, the piston rod is provided with the guide structure, and the guide structure is arranged at one end of the piston rod, which is far away from the oil cylinder body of the hydraulic oil cylinder. The piston rod realizes automatic guide when connecting the upper end of the sliding frame and the yoke plate structure, and connecting the lower end of the sliding frame and the reduction gearbox, so that the piston rod is convenient to connect, and connection dislocation is prevented.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 shows a schematic diagram of a powerhead of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 shows a partial cross-sectional view of the powerhead (connected state) of the present invention;

FIG. 4 shows a partial cross-sectional view of the power head of the present invention (disassembled);

FIG. 5 shows a partial top view of the powerhead of the present invention.

Description of reference numerals:

1. a reduction gearbox; 11. a third fixing plate; 12. a fourth fixing plate; 2. a yoke plate structure; 21. a first fixing plate; 22. a second fixing plate; 23. a first yoke plate; 24. a second yoke plate; 25. a connecting rod; 3. a carriage; 31. a first connection portion; 32. a second connecting portion; 4. a drive structure; 41. a piston rod; 411. a guide structure; 42. a connecting flange; 5. a fastener.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 5, the present embodiment discloses a power head, which includes a reduction gearbox 1, a yoke plate structure 2, a carriage 3 and a driving structure 4, wherein the yoke plate structure 2 is detachably connected to the top of the reduction gearbox 1; the sliding frame 3 is arranged on the side part of the reduction gearbox 1, and the upper end and the lower end of the sliding frame 3 are respectively detachably connected with the yoke plate structure 2 and the reduction gearbox 1 through pin shafts; the driving structure 4 comprises a driving body and a driving shaft, and the driving shaft is telescopically connected to one end of the driving body; the driving shaft is a pin shaft. The power head is a power component which can realize main movement and feed movement and has automatic workpiece circulation. In a specific embodiment, the driving structures 4 have two sets, the driving bodies of one set of driving structures 4 are connected on the top of the connecting plate structure 2, and the driving bodies of the other set of driving structures 4 are connected on the top of the reduction gearbox 1.

The balladeur train 3 and the yoke plate of current power head of digging the rig soon are connected through round pin axle and clamp plate manual, and balladeur train 3 also is connected through round pin axle and clamp plate manual with reducing gear box 1, and it is hard to waste time to install or when dismantling the round pin axle, and the dismouting is complicated and there is the safety risk in the dismouting in-process. The unit head in this embodiment, drive shaft use as the round pin axle, stretch out and draw back under drive structure 4's drive to with the upper and lower both ends of balladeur train 3 respectively with yoke plate structure 2 and 1 automatic dismouting of reducing gear box, need not operator manual operation, the dismouting is simple, labour saving and time saving, and there is not safe risk in the dismouting process. And no pin shaft is required to be additionally arranged, so that parts are reduced.

In the present embodiment, the driving mechanism 4 is a hydraulic driving mechanism. The hydraulic driving structure comprises a hydraulic oil cylinder, a hydraulic motor and the like.

As an alternative embodiment, the drive mechanism 4 may be a linear drive. The linear driver comprises a linear motor and a push rod, and the push rod can be used as a pin shaft.

In this embodiment, the driving structure 4 is a hydraulic cylinder, and a piston rod 41 of the hydraulic cylinder is a pin. Need not additionally to set up the round pin axle, just can realize the connection of the upper end of balladeur train 3 and yoke plate structure 2 through hydraulic cylinder to and the connection of the lower extreme of balladeur train 3 and reducing gear box 1, reduced spare part.

Specifically, the connection process of the power head of the present embodiment includes: the upper end and the yoke plate structure 2 of the carriage 3 are aligned, the lower end of the carriage 3 and the reduction gearbox 1 are aligned, hydraulic oil is injected into the hydraulic oil cylinder, the piston rod 41 gradually extends out of the hydraulic oil cylinder along with the increase of hydraulic pressure, the upper end of the carriage 3 is connected with the yoke plate structure 2, the lower end of the carriage 3 is connected with the reduction gearbox 1, after the piston rod 41 extends out to the maximum position, as shown in fig. 3, the hydraulic lock is used for locking the oil pressure in the hydraulic oil cylinder, and the piston rod 41 is used as a pin shaft. The disassembly process of the power head of this embodiment includes: the hydraulic oil in the oil cylinder is pumped out, the piston rod 41 gradually retracts, and when the piston rod 41 retracts to the initial position in the hydraulic oil cylinder, as shown in fig. 4, the upper end of the carriage 3 and the connecting plate structure 2 are in a detachable state, and the lower end of the carriage 3 and the reduction gearbox 1 are in a detachable state.

As shown in fig. 3, in this embodiment, a guide structure 411 is disposed on the piston rod 41, and the guide structure 411 is disposed at an end of the piston rod 41 away from the cylinder body of the hydraulic cylinder. The piston rod 41 realizes automatic guiding when connecting the upper end of the sliding frame 3 with the connecting plate structure 2 and connecting the lower end of the sliding frame 3 with the reduction gearbox 1, thereby being convenient for connecting the piston rod 41 and preventing connection dislocation.

In this embodiment, the guiding structure 411 is a chamfer provided on the piston rod 41. Simple structure and easy shaping.

As shown in fig. 5, in the present embodiment, the bottom of each driving structure 4 is provided with a connecting flange 42, and a group of driving structures 4 is detachably connected with the top of the yoke plate structure 2 through the connecting flange 42; the other set of drive structures 4 is detachably connected to the top of the reduction gearbox 1 by means of a connecting flange 42.

In a specific embodiment, the connecting flanges 42 of a group of driving structures 4 are detachably connected with the top of the yoke plate structure 2 through fasteners 5; the connecting flange 42 of the other set of driving structures 4 is detachably connected with the top of the reduction gearbox 1 through fasteners 5. The fastening member 5 may be a fastening structure such as a screw or a bolt.

In this embodiment, the top of the yoke plate structure 2 includes a first fixing plate 21 and a second fixing plate 22, the first fixing plate 21 is provided with a first connection hole, and the group of driving structures 4 is detachably connected with the first fixing plate 21 through a connection flange 42; the second fixing plates 22 are arranged below the first fixing plates 21 at intervals and are parallel to the first fixing plates 21, and second connecting holes are formed in the second fixing plates 22; a first connecting part 31 protruding from the top end of the carriage 3 is arranged, the first connecting part 31 is clamped between the first fixing plate 21 and the second fixing plate 22, and a first matching hole is arranged on the first connecting part 31; the first connecting hole, the first matching hole and the second connecting hole are connected in sequence through the pin shaft. The first connecting portion 31 is clamped between the first fixing plate 21 and the second fixing plate 22, the first connecting portion 31 is limited in the vertical direction, and the first connecting hole, the first matching hole and the second connecting hole are connected through the pin shaft in sequence, so that the first connecting portion 31, the first fixing plate 21 and the second fixing plate 22 can be limited in the circumferential direction.

As an alternative embodiment, the yoke plate structure 2 may only include the first fixing plate 21, the first connecting portion 31 is connected below the first fixing plate 21, the length of the piston rod 41 is greater than that of the ordinary hydraulic cylinder, a pin hole may be further provided at one end of the piston rod 41 away from the hydraulic cylinder, and a pin may be inserted into the pin hole to vertically limit the first fixing plate 21.

In this embodiment, the yoke plate structure 2 includes a first yoke plate 23, a second yoke plate 24 and a connecting rod 25, the first yoke plate 23 is connected to one side of the top of the reduction gearbox 1, and the top of the first yoke plate 23 is provided with a set of first fixing plate 21 and a set of second fixing plate 22; the second connecting plate 24 is connected to the other side of the top of the reduction gearbox 1 and is arranged in parallel with the first connecting plate 23, and a group of first fixing plates 21 and second fixing plates 22 are arranged on the top of the second connecting plate 24; both ends of the link 25 are connected to the top of the first link 23 and the top of the second link 24, respectively. The connecting rod 25 limits and fixes the top of the first yoke plate 23. The first and second yoke plates 23 and 24 are connected to both ends of the top of the carriage 3, respectively, so that the connection is more stable.

In this embodiment, the reduction gearbox 1 includes a third fixing plate 11 and a fourth fixing plate 12, the third fixing plate 11 extends out from the upper panel of the reduction gearbox 1 toward the carriage 3, and the third fixing plate 11 is provided with a third connecting hole; the group of driving structures 4 is detachably connected with the third fixing plate 11 through a connecting flange 42; the fourth fixing plate 12 extends out from the lower panel of the reduction gearbox 1 towards the sliding frame 3, and a fourth connecting hole is formed in the fourth fixing plate 12; a second protruding connecting part 32 is arranged at the bottom end of the carriage 3, the second connecting part 32 is clamped between the third fixing plate 11 and the fourth fixing plate 12, and a second matching hole is arranged on the second connecting part 32; the third connecting hole, the second matching hole and the fourth connecting hole are connected in sequence through a pin shaft. The second connecting portion 32 is clamped between the third fixing plate 11 and the fourth fixing plate 12, and limits the second connecting portion 32 in the vertical direction, and after the third connecting hole, the second matching hole and the fourth connecting hole are connected sequentially through the pin shaft, the second connecting portion 32, the third fixing plate 11 and the fourth fixing plate 12 can be limited in the circumferential direction.

As an alternative embodiment, the yoke plate structure 2 may only include the third fixing plate 11, the second connecting portion 32 is connected below the third fixing plate 11, the length of the piston rod 41 is greater than that of the ordinary hydraulic cylinder, a pin hole is further provided at one end of the piston rod 41 away from the hydraulic cylinder, and a pin may be inserted into the pin hole to vertically limit the third fixing plate 11.

In a specific embodiment, the two ends of the upper panel of the reduction gearbox 1 extend out of the third fixing plate 11, and the two ends of the lower panel of the reduction gearbox 1 extend out of the fourth fixing plate 12.

The embodiment also provides a rotary drilling rig which comprises the power head.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims

1. A powerhead, comprising:

a reduction gearbox (1);

the connecting plate structure (2) is detachably connected to the top of the reduction gearbox (1);

the sliding frame (3) is arranged on the side part of the reduction gearbox (1), and the upper end and the lower end of the sliding frame (3) are respectively detachably connected with the yoke plate structure (2) and the reduction gearbox (1) through pin shafts;

the driving structure (4) comprises a driving body and a driving shaft, and the driving shaft is telescopically connected to one end of the driving body; the driving shaft is the pin shaft.

2. The power head according to claim 1, characterized in that the drive structure (4) is a hydraulic drive structure.

3. The power head according to claim 2, characterized in that the drive structure (4) is a hydraulic cylinder, the piston rod (41) of which is the pin.

4. The power head according to claim 3, wherein a guide structure (411) is arranged on the piston rod (41), and the guide structure (411) is arranged at one end of the piston rod (41) far away from the cylinder body of the hydraulic cylinder.

5. The power head according to claim 4, characterized in that the guiding structure (411) is a chamfer provided on the piston rod (41).

6. The power head according to any of claims 1 to 5, characterized in that the bottom of the drive structures (4) are each provided with a connecting flange (42), a group of the drive structures (4) being detachably connected with the top of the yoke plate structure (2) by means of the connecting flanges (42); the other group of driving structures (4) are detachably connected with the top of the reduction gearbox (1) through the connecting flange (42).

7. The power head according to claim 6, characterized in that the top of the yoke structure (2) comprises:

the first fixing plate (21) is provided with a first connecting hole, and the group of driving structures (4) are detachably connected with the first fixing plate (21) through the connecting flange (42);

the second fixing plates (22) are arranged below the first fixing plates (21) at intervals and are parallel to the first fixing plates (21), and second connecting holes are formed in the second fixing plates (22); a first protruding connecting portion (31) is arranged at the top end of the sliding frame (3), the first connecting portion (31) is clamped between the first fixing plate (21) and the second fixing plate (22), and a first matching hole is formed in the first connecting portion (31); the first connecting hole, the first matching hole and the second connecting hole are connected in sequence through the pin shaft.

8. The power head according to claim 7, characterized in that the yoke structure (2) comprises:

the first connecting plate (23) is connected to one side of the top of the reduction gearbox (1), and a group of first fixing plates (21) and second fixing plates (22) are arranged on the top of the first connecting plate (23);

the second connecting plate (24) is connected to the other side of the top of the reduction gearbox (1) and is arranged in parallel with the first connecting plate (23), and a group of first fixing plates (21) and second fixing plates (22) are arranged on the top of the second connecting plate (24);

and two ends of the connecting rod (25) are respectively connected with the top of the first yoke plate (23) and the top of the second yoke plate (24).

9. The power head according to claim 6, characterized in that the reduction gearbox (1) comprises:

the third fixing plate (11) extends out from the upper panel of the reduction gearbox (1) towards the sliding frame (3), and a third connecting hole is formed in the third fixing plate (11); a group of the driving structures (4) is detachably connected with the third fixing plate (11) through the connecting flange (42);

the fourth fixing plate (12) extends out from the lower panel of the reduction gearbox (1) towards the sliding frame (3), and a fourth connecting hole is formed in the fourth fixing plate (12); a second protruding connecting part (32) is arranged at the bottom end of the sliding frame (3), the second connecting part (32) is clamped between the third fixing plate (11) and the fourth fixing plate (12), and a second matching hole is formed in the second connecting part (32); the third connecting hole, the second matching hole and the fourth connecting hole are connected in sequence through the pin shaft.

10. A rotary drilling rig comprising a power head according to any one of claims 1 to 9.