CN219061558U

CN219061558U - Pile drilling machine power head lifting structure

Info

Publication number: CN219061558U
Application number: CN202320285293.7U
Authority: CN
Inventors: 朱派东; 于坤滔; 杨芳; 李剑
Original assignee: Cge Chongqing Exploration Machinery Co ltd
Current assignee: Cge Chongqing Exploration Machinery Co ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-05-23
Anticipated expiration: 2033-02-22

Abstract

The utility model discloses a pile drilling machine power head lifting structure, which comprises a portal frame and a power head positioned on the inner side of the portal frame, wherein the portal frame comprises two vertical beams which are vertically arranged at intervals, and a cross beam is connected between the upper ends of the two vertical beams; the two sides of the power head facing the vertical beam are connected with limiting groups, each limiting group comprises two limiting parts, and the vertical beam is positioned between and abutted against the two limiting parts on the corresponding side; a plurality of roller groups are vertically distributed between two sides of the power head and corresponding side vertical beams, the roller groups are rotationally connected with the power head through rotating shafts, and the roller groups are abutted to the corresponding side vertical beams and can vertically roll. According to the utility model, the power head is matched with the portal frame in a rolling way through the roller group to realize lifting of the power head, so that the portal frame is not required to be additionally processed, the weight of the portal frame is convenient to control, and the miniature and lightweight design of the pile drilling machine is facilitated; in addition, the rolling fit can enable the power head to be lifted more smoothly.

Description

Pile drilling machine power head lifting structure

Technical Field

The utility model belongs to the technical field of geological exploration, and particularly relates to a pile drilling machine power head lifting structure.

Background

In the construction process of a building, pile holes are required to be drilled at construction positions or soil sampling is required to be carried out so as to judge geological conditions; currently, in order to improve the drilling quality of pile holes, the sampling effect of soil and reduce the consumption of human resources, pile drilling machines are generally used for drilling pile holes and sampling soil. The main machine of the pile drilling machine mainly comprises a power head, a portal frame, a base, a diesel power station, a winch and other parts; the power head can be lifted and arranged in the portal frame, when pile holes and soil sampling are drilled, the power head is driven by lifting power sources such as a winch or a hydraulic cylinder to lift so as to adjust the position of the drilling tool, and then the diesel power station drives the drilling tool on the power head so as to complete pile hole drilling and soil sampling.

At present, a power head of a general pile drilling machine is in sliding connection with two inner side walls of a portal frame so as to be matched with a lifting power source to realize lifting of the power head; as disclosed in chinese patent CN114427352a, sliding rails are machined on two inner side walls of the gantry, sliding grooves corresponding to the sliding rails are machined on two sides of the power head, and sliding connection between the power head and the gantry is realized through cooperation of the sliding grooves and the sliding rails; as disclosed in chinese patent CN215640257U, two sides of a gantry are used as sliding bars, two sides of a power head are connected with sliding sleeves sleeved outside the sliding bars, and the power head is slidably connected with the gantry through cooperation of the sliding sleeves and the sliding bars. Because the size and the weight of the portal frame are large, the sliding rail is directly machined on the portal frame or the two sides of the portal frame are machined to serve as the sliding bars, the machining difficulty is high, the portal frame is required to be of a sufficient size for machining, the weight of the portal frame is further increased, and the split transportation and the miniaturized design of the pile drilling machine are not facilitated; some pile drilling machines are provided with sliding plates on the portal frames to replace the direct processing of the portal frames, but the sliding connection of the power head and the portal frames directly influences the perpendicularity of pile hole drilling, so that the requirements on the processing precision of the matching surfaces of the sliding plates are higher, the requirements on the precision of the installation of the sliding plates are also higher, and the assembling and using difficulty of the pile drilling machine after the pile drilling machine is disassembled and transported is higher; in addition, sliding connection is easy under abominable construction environment, and its sliding performance decline is faster and easy card is dead, needs frequent washing and lubrication, leads to use cost to increase.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a power head lifting structure of a pile drilling machine, solve the technical problem that the power head lifting structure in the existing pile drilling machine is difficult to process and use, and obtain the effect of improving the use stability of the pile drilling machine.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a pile drilling machine unit head elevation structure, includes the portal frame and is located the inboard unit head of portal frame, and the portal frame includes two vertical beams of vertical interval setting, is connected with the crossbeam between the upper end of two vertical beams; the two sides of the power head facing the vertical beam are connected with limiting groups, each limiting group comprises two limiting parts, and the vertical beam is positioned between the two limiting parts on the corresponding side; a plurality of roller groups are vertically distributed between the power head and the vertical beams, the roller groups are rotationally connected with the power head through rotating shafts, and the roller groups are abutted with the vertical beams on the corresponding sides and can vertically roll.

Further, both ends of the roller group are provided with a circle of protrusions extending outwards along the radial direction and are formed into the limiting parts.

Further, the roller group comprises two rollers and is rotationally connected with the power head through the same rotating shaft, and two limiting parts of the roller group are respectively formed at one ends of the two rollers, which are opposite to each other.

Further, be equipped with the support group between unit head and the vertical beam, the support group includes two parallel interval and vertical setting's backup pad, backup pad and unit head fixed connection, and each roller group all is located between two backup pads, and roller group rotates with two backup pads through the pivot to be connected.

Further, the two ends of the supporting plate vertically extend to the upper part and the lower part of the power head respectively, and the plurality of roller groups on the same side are symmetrically distributed above and below the power head.

Further, a reinforcing plate is connected between the same ends of the two supporting plates in the supporting group, and hanging rings are connected to the two reinforcing plates above the reinforcing plate.

Further, the distance between the two opposite surfaces of the two supporting groups is smaller than the distance between the two opposite surfaces of the two vertical beams, the rotating shaft is a bolt, the rod part of the bolt can rotatably penetrate through the two supporting plates and the roller group, the head part of the bolt is in butt joint with one supporting plate, and the tail end of the rod part of the bolt is in threaded connection with a nut and the nut is in butt joint with the other supporting plate.

Compared with the prior art, the utility model has the following beneficial effects:

1. in the pile drilling machine power head lifting structure, the vertical beam is positioned between and abutted against the two limiting parts at the corresponding side, so that the power head is prevented from swinging in the horizontal direction; the power head is in rolling fit with the portal frame through the roller group, so that the power head is driven by the lifting power source to lift so as to adjust the position of the drilling tool, the portal frame is not required to be additionally processed, the weight of the portal frame is convenient to control, and the miniature and lightweight design of the pile drilling machine is facilitated; in addition, compared with sliding fit, rolling fit can enable the power head to be lifted more smoothly, the power head is not easy to be blocked, and frequent cleaning and lubrication are not needed; the technical problems of high processing and using difficulty of the power head lifting structure in the existing pile drilling machine can be effectively solved, and the effect of improving the use stability of the pile drilling machine is achieved.

2. In the pile drilling machine power head lifting structure, the limiting part is arranged on the roller group, and the limiting part and the roller group synchronously rotate in the lifting process of the power head, so that the possibility of blocking of the limiting part can be effectively reduced, and the running stability of the pile drilling machine power head lifting structure is improved.

3. In the pile drilling machine power head lifting structure, the roller group consists of two rollers, so that rolling fit between the middle part of the roller group and the vertical beam is omitted, lifting resistance is further reduced under the condition that the power head can be guided to lift smoothly, and in addition, the axial length of the roller group is shortened in a phase-changing manner, thereby being beneficial to miniaturization and lightweight design of the pile drilling machine.

Drawings

Fig. 1 is a schematic structural view of a pile drilling machine power head lifting structure according to an embodiment;

FIG. 2 is a schematic view of the structure of the hidden portal frame of FIG. 1;

the power head 1, the vertical beam 2, the limiting part 3, the idler wheels 4, the supporting plate 5, the reinforcing plate 6, the hanging ring 7, the bolt 8 and the nut 9.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. The components of the embodiments of the present utility model 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 utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined. In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples:

referring to fig. 1 and 2, a pile drilling machine power head lifting structure comprises a portal frame and a power head 1 positioned on the inner side of the portal frame, wherein the portal frame comprises two vertical beams 2 which are vertically arranged at intervals, and in the embodiment, the cross section of each vertical beam 2 is rectangular; a cross beam (not shown in the figure) is connected between the upper ends of the two vertical beams 2; the two sides of the power head 1 facing the vertical beams 2 are connected with limiting groups, each limiting group comprises two limiting parts 3, and the vertical beams 2 are positioned between the two limiting parts 3 on the corresponding sides so as to limit the power head 1 to move in the horizontal direction; a plurality of roller groups are vertically distributed between two sides of the power head 1 and the corresponding side vertical beams 2, the roller groups are rotationally connected with the power head 1 through rotating shafts, and the roller groups are abutted with the corresponding side vertical beams 2 and can vertically roll.

In the pile drilling machine power head lifting structure, the vertical beam 2 is positioned between the two limiting parts 3 at the corresponding sides so as to prevent the power head 1 from swinging in the horizontal direction; the two sides of the power head 1 are rotationally connected with the roller groups, the roller groups are abutted with the vertical rods of the portal frame and can roll along the vertical rods, namely, the power head 1 is matched with the portal frame in a rolling way through the roller groups, so that the power head 1 is driven by a lifting power source to lift so as to adjust the position of a drilling tool, the portal frame is not required to be additionally processed, the weight of the portal frame is convenient to control, and the miniature and lightweight design of a pile drilling machine is facilitated; in addition, compared with sliding fit, rolling fit can enable the power head 1 to be lifted more smoothly, the power head is not easy to be blocked, and frequent cleaning and lubrication are not needed; the technical problem that the difficulty in processing and using the lifting structure of the power head 1 in the existing pile drilling machine is high can be effectively solved, and the effect of improving the use stability of the pile drilling machine is achieved. In order to facilitate the transportation of the pile drilling machine, the portal frame and the power head are generally detachable and separated, and in the implementation of the utility model, the power head and the portal frame can be separated by detaching the portal frame or the limiting part.

Referring to fig. 1 and 2, both ends of the roller set are protruded outwards along the radial direction to form the limit part 3, and the limit part 3 is annular; in this way, although the cooperation between the limiting part 3 and the vertical beam 2 is used for preventing the power head 1 from swinging, rather than guiding the power head 1 to lift, in order to ensure the lifting stability of the power head 1 and improve the drilling precision of the pile hole, the limiting part 3 needs to be in close contact with the vertical beam 2, that is, the limiting part 3 is in sliding cooperation with the vertical beam 2, so that the sliding performance is fast reduced and is easy to be blocked; according to the utility model, the limiting part 3 is integrated on the roller group, and the limiting part 3 and the roller group synchronously rotate in the lifting process of the power head 1, so that the possibility of blocking the limiting part 3 can be effectively reduced, and the running stability of the pile drilling machine power head lifting structure is improved.

Referring to fig. 1 and 2, the roller set includes two rollers 4 and is rotatably connected with the power head 1 through a rotating shaft, and one end of any roller 4 far away from the other roller 4 in the same roller set protrudes outwards along a radial direction to form the limit part 3; like this, the roller train comprises two gyro wheels, saves the rolling cooperation of roller train middle part and vertical beam 2, under the circumstances that guarantees can guide unit head 1 to go up and down smoothly, has further reduced the lift resistance, in addition, also the axial length of roller train has been shortened to the phase change, is favorable to the miniature, the lightweight design of stake rig.

Referring to fig. 1 and 2, the rotational connection between the roller set and the power head 1 adopts the following structural form: the two sides of the power head 1 facing the vertical beams 2 are connected with supporting groups, the distance between the two opposite sides of the two supporting groups is smaller than the distance between the two opposite sides of the two vertical beams 2, each supporting group comprises two supporting plates 5 which are arranged in parallel at intervals and vertically, a distance is reserved between each supporting plate 5 and the corresponding side vertical beam 2, and a roller group on the corresponding side is positioned between the two supporting plates 5 to limit the roller group to move along a rotating shaft and is rotationally connected with the two supporting plates 5 through the rotating shaft; in this embodiment, two ends of the supporting plate 5 vertically extend to the upper and lower sides of the power head 1 respectively, and a plurality of roller groups on the same side are symmetrically distributed above and below the power head 1; therefore, the distance between the power head 1 and the vertical rods can be further shortened under the condition that the power head does not interfere with the roller set, so that the distance between the two vertical rods is shortened, the lifting structure of the power head of the pile drilling machine is more compact, and the miniature and lightweight design of the pile drilling machine is facilitated.

Referring to fig. 1 and 2, a reinforcing plate 6 is connected between the same ends of two support plates 5 in the support group, and a hanging ring 7 is connected to the two upper reinforcing plates 6; like this, reinforcing plate 6 forms the frame construction with the support group and is more reliable and stable, sets up rings 7 convenient to detach, installs and adjusts the position of unit head 1 when transporting.

Referring to fig. 1 and 2, in order to solve the above problem that the gantry and the power head need to be disassembled and separated for transporting the pile drilling machine, in this embodiment, aiming at the structural form that the limiting portion is integrated on the roller, the distance between two opposite sides of the two supporting groups is smaller than the distance between two opposite sides of the two vertical beams 2, and then the separation of the power head and the gantry is realized by adopting the structural form that the roller is disassembled, compared with the disassembly and assembly of the gantry with larger volume and weight, the disassembly of the roller is simpler and easier, the weight of the power head can be reduced after the roller is separated from the power head, and the disassembly and transportation of the pile drilling machine are facilitated; the detachable structural form of the roller is as follows:

the rotating shaft is a bolt 8, the rod part of the bolt 8 can penetrate through the two support plates 5 and the roller set in a rotating way, the head part of the bolt 8 is abutted with one support plate 5, the tail end of the rod part of the bolt 8 is connected with a nut 9 in a threaded manner, and the nut 9 is abutted with the other support plate 5; like this, unscrewing nut 9, after taking out the bolt, gyro wheel 4 and unit head 1 separation, spacing portion 3 lose the blocking effect to unit head 1, and the interval of two opposite sides of two support group is less than the interval of two opposite sides of two vertical beams 2, during dismantlement and installation, unit head 1 can horizontal migration in or shift out the portal frame, is favorable to the dismantlement transportation and the equipment of stake rig to use.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the technical solution, and those skilled in the art should understand that modifications and equivalents may be made to the technical solution of the present utility model without departing from the spirit and scope of the present utility model, and all such modifications and equivalents are included in the scope of the claims.

Claims

1. The utility model provides a pile drilling machine unit head elevation structure, includes the portal frame and is located the inboard unit head of portal frame, and the portal frame includes two vertical beams of vertical interval setting, is connected with the crossbeam between the upper end of two vertical beams; the method is characterized in that: the two sides of the power head facing the vertical beam are connected with limiting groups, each limiting group comprises two limiting parts, and the vertical beam is positioned between the two limiting parts on the corresponding side; a plurality of roller groups are vertically distributed between the power head and the vertical beams, the roller groups are rotationally connected with the power head through rotating shafts, and the roller groups are abutted with the vertical beams on the corresponding sides and can vertically roll.

2. The pile drilling machine power head lifting structure according to claim 1, wherein: both ends of the roller group are provided with a circle of bulges extending outwards along the radial direction and are formed into the limiting part.

3. The pile drilling machine power head lifting structure according to claim 2, wherein: the roller group comprises two rollers and is rotationally connected with the power head through the same rotating shaft, and two limiting parts of the roller group are respectively formed at one ends of the two rollers, which are opposite to each other.

4. The pile drilling machine power head lifting structure according to claim 2, wherein: be equipped with the support group between unit head and the vertical beam, the support group includes two parallel interval and the backup pad of vertical setting, backup pad and unit head fixed connection, and each roller group all is located between two backup pads, and roller group rotates with two backup pads through the pivot to be connected.

5. The pile drilling machine power head lifting structure according to claim 4, wherein: the both ends of backup pad vertically extend to the top and the below of unit head respectively, and a plurality of roller sets of homonymy distribute in the top and the below of unit head symmetrically.

6. The pile drilling machine power head lifting structure according to claim 4, wherein: a reinforcing plate is connected between the same ends of the two supporting plates in the supporting group, and hanging rings are connected to the two reinforcing plates above the reinforcing plates.

7. The pile drilling machine power head lifting structure according to claim 4, wherein: the interval of two opposite sides of two support groups is less than the interval of two opposite sides of two vertical beams, the pivot is the bolt, and the shank of bolt rotatable runs through two backup pads and roller set, and the head and the backup pad butt of bolt, the terminal threaded connection of shank of bolt have nut and another backup pad butt.