Drilling machine power head for pile foundation construction and pile machine

Abstract

The utility model relates to the technical field of pile machines, and particularly discloses a drilling machine power head for pile foundation construction and a pile machine, the drilling machine power head comprises a machine shell and a driving mechanism installed in the machine shell and capable of driving a drilling rod to rotate, a receding groove extending to the top of the machine shell is formed in one side wall of the machine shell, a lifting connecting part is arranged in the receding groove, and the lifting connecting part is connected with the driving mechanism. The receding groove is formed in one side of the drill rod power head, and the lifting connecting part is arranged in the receding groove, so that the maximum height of the drill rod power head can be effectively increased when the drill rod power head is lifted through the lifting connecting part, and the vertical stroke height of the drill rod power head on a small pile machine is remarkably increased; under the precondition that the height of the small-size pile machine is limited, the single-time drilling depth of the drilling rod driven by the drilling machine power head is expanded as much as possible, the lifting times of the drilling machine power head and the splicing times of the drilling rod are reduced, and then the drilling construction efficiency of the small-size pile machine is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pile machine, especially a pile foundation construction is used for rig head of drilling machine and pile machine. BACKGROUND

[0002] Pile machine refers to the hammering, vibration or static pressure and so on mode will pile into the underground, for high-rise building, bridge, wharf and so on engineering building provides deep layer support foundation, significantly improves the bearing capacity and stability of foundation, of course before implanting pile, need to carry out the punching on the foundation that needs to implant pile as pile hole, and need to adopt different models of pile machine for different scenes, mainly according to the body type is divided into two models of large body type pile machine and small body type pile machine, for the case of larger construction space, it will often adopt large body type pile machine, and its single drilling depth is higher, can improve the drilling efficiency, and for the case of limited construction space, it can not accommodate large body type pile machine, only small body type pile machine can be used.

[0003] But the height of the small body type pile machine main mast is very limited, but its power head is lifted by the hoisting mechanism such as steel wire rope, the connecting assembly of the steel wire rope is fixed on the top of the power head, and a vertical distance is always kept between the top of the power head and the head of the pile machine during the punching operation, and the power head itself has a height of more than two meters, the superposition of the vertical distance and the height of the power head itself makes the vertical stroke of the power head from the ground short, and the single drilling depth of the power head driven drill rod is limited, for the pile hole with a depth value far exceeding the height value of the pile machine, the existing small body type pile machine needs to lift the power head multiple times to splice the drill rod to connect the pile hole drilled to the predetermined depth, resulting in low drilling construction efficiency of the small body type pile machine. SUMMARY

[0004] The utility model considers the foregoing problem and makes, the utility model aims at providing a kind of pile foundation construction is used for rig head of drilling machine and pile machine, it can lift the upper portion of rig head of drilling machine to the top of goose head, significantly improve the vertical stroke height of rig head of drilling machine on small body type pile machine, under the prerequisite condition of limited height of small body type pile machine, expand the single drilling depth of drill rod driven by rig head of drilling machine as far as possible, reduce the lifting frequency of rig head of drilling machine and the splicing frequency of drill rod, to improve the drilling construction efficiency of small body type pile machine further.

[0005] To achieve the above object, the utility model provides a kind of rig head of drilling machine for pile foundation construction, it includes: casing and the driving mechanism of being installed in the casing and can drive drill rod rotation;

[0006] Wherein, the casing is vertically provided with the avoidance slot extending to the top of casing at one side wall, and the lifting connecting portion is arranged in the avoidance slot.

[0007] The drill head for pile foundation construction has an avoiding groove with a vertical height greater than or equal to half of the vertical height of the machine shell.

[0008] The lifting connection part is arranged at the lower end of the avoiding groove.

[0009] The drill head for pile foundation construction has a driving mechanism including two synchronous motors arranged in the machine shell and a transmission shaft driven by the two synchronous motors.

[0010] In a top view, the vertical axis of the transmission shaft and the vertical axes of the two synchronous motors are in a triangular distribution, and the vertical axis of the transmission shaft is closer to the avoiding groove than the vertical axes of the synchronous motors.

[0011] The two synchronous motors are connected to the transmission shaft through a transmission gear set.

[0012] A pile machine includes a chassis, a main mast erected on the chassis, the drill head as described above, and a lifting adjustment mechanism for adjusting the height position of the drill head relative to the main mast.

[0013] The main mast is provided with a vertical slide for guiding the lifting movement of the drill head, and the machine shell is provided with a sliding seat matching the vertical slide at the bottom of the same side wall where the avoiding groove is arranged.

[0014] The side wall of the machine shell where the avoiding groove is arranged faces the vertical slide.

[0015] The lifting adjustment mechanism includes a winch mounted on the chassis or the main mast, and a rope wound by the winch and connected to the lifting connection part by passing around the top of the main mast.

[0016] The top of the main mast is provided with a gooseneck, a fixed pulley is mounted on the overhanging end of the gooseneck, the lifting connection part is a movable pulley, and the rope passes through the fixed pulley and is connected to the movable pulley.

[0017] The width of the avoiding groove is greater than the width of the overhanging end.

[0018] The sliding seat is located below the lifting connection part.

[0019] The vertical slide is a T-shaped guide rail, and two T-shaped guide rails are symmetrically arranged on both sides of the main mast. The sliding seat is provided with a T-shaped groove matching the T-shaped guide rail on both sides.

[0020] The utility model has the following beneficial effects:

[0021] 1. By setting the avoiding groove on the side of the drilling rig power head, and setting the lifting connecting part in the avoiding groove, the maximum height of the drilling rig power head can be effectively improved when the pile machine lifts the drilling rig power head through the lifting connecting part, the vertical stroke height of the drilling rig power head on the small-size pile machine is significantly improved, the depth of the single drilling of the drilling rig power head is expanded as much as possible under the premise of the limited height of the small-size pile machine, the lifting frequency of the drilling rig power head and the splicing frequency of the drill rod are reduced, and the drilling construction efficiency of the small-size pile machine is improved.

[0022] 2. The vertical shafts of the two synchronous motors and the transmission shaft are triangularly distributed, and the vertical shaft of the transmission shaft is closer to the avoiding groove relative to the vertical shaft of the synchronous motor, so that the avoiding groove can be arranged on the machine shell, and the transmission shaft is close to the lifting center line, and the stability of the drill rod lifting is ensured.

[0023] 3. The vertical slide adopts a T-shaped guide rail, and the sliding seat adopts a T-shaped groove, and the two are matched to slide, so that the self-locking effect is achieved, the sliding seat and the slide are prevented from being easily separated, and the connection stability and reliability are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is a schematic diagram of the overall structure of the pile machine of the embodiment.

[0025] Fig. 2 It is a schematic diagram of the overall structure of the drilling rig power head of the embodiment.

[0026] Fig. 3 It is a schematic diagram of the arrangement of the driving mechanism in the machine shell.

[0027] In the drawings:

[0028] 100, drilling rig power head; 110, machine shell; 111, avoiding groove; 112, movable pulley; 113, sliding seat; 113a, T-shaped sliding groove; 120, driving mechanism; 121, synchronous motor; 122, transmission shaft; 130, drill rod; 200, chassis; 300, main mast; 310, vertical slide; 320, goose head; 321, fixed pulley. DETAILED DESCRIPTION

[0029] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0030] As shown in the drawings, Figs. 1-3 A drilling rig power head for pile foundation construction, comprising a machine shell 110 and a driving mechanism 120 installed in the machine shell 110 and capable of driving a drill rod 130 to rotate, the drill rod 130 rotates to perform a drilling action.

[0031] The casing 110 is vertically provided with an avoiding groove 111 extending to the top of the casing 110 on one side wall, and the avoiding groove 111 is provided with a lifting connecting part. In the prior art, the lifting connecting part is often arranged at the top of the casing 110, which limits the maximum height of the drilling rig power head 100, and thus the length of the single drill rod 130 is not long. In the embodiment, the avoiding groove 111 is provided on one side of the casing 110, and the lifting connecting part is arranged in the avoiding groove 111, so that the position of the lifting connecting part is lowered, the lifting height of the drilling rig power head 100 is improved, and the axis of the drill rod 130 is prevented from deviating from the lifting center too much, so as to ensure the stability of the drill rod 130. At the same time, the distance between the bottom of the drilling rig power head 100 and the ground is increased, the vertical stroke height of the drilling rig power head 100 on the small-sized pile machine is significantly improved, the depth of the single drilling of the drill rod 130 driven by the drilling rig power head 100 is expanded as much as possible under the premise of limited height of the small-sized pile machine, the lifting frequency of the drilling rig power head 100 and the splicing frequency of the drill rod 130 are reduced, and thus the drilling construction efficiency of the small-sized pile machine is improved.

[0032] Specifically, the vertical height of the avoiding groove 111 is greater than or equal to half of the vertical height of the casing 110; and / or the lifting connecting part is arranged at the lower end of the avoiding groove 111. In the embodiment, the vertical height of the avoiding groove 111 is greater than or equal to half of the vertical height of the casing 110, and the lifting connecting part is arranged at the lower end of the avoiding groove 111. The higher the vertical height of the avoiding groove 111 is, the lower the position of the lifting connecting part is when the lifting connecting part is arranged at the lower end of the avoiding groove 111, so that the height of the power head can be maximally improved. In a specific machine, the height can be improved by about three meters.

[0033] In the embodiment, compared with the conventional scheme of arranging the lifting connecting part at the top of the drilling rig power head 100, the maximum height of the drilling rig power head 100 is improved by about three meters, the length of the single drill rod 130 is increased by three meters, the downward stroke of the power head is increased by three meters, the drilling depth of the drilling rig power head 100 in a single drilling is increased by three meters, the effective working depth is increased by 25% under the same equipment height, the splicing of the drill rod 130 is reduced by 5-8 times per hundred meters, and the comprehensive efficiency is improved by 30%. The drilling rig power head 100 is suitable for underground engineering and old city reconstruction scenes with low clearance height.

[0034] In the embodiment, after the drilling rig power head 100 drives the first drill rod 130 to drill a hole, if the hole drilled does not reach the predetermined depth, the operator separates the drilling rig power head 100 from the first drill rod 130, the first drill rod 130 remains in the drilled hole, and the second drill rod 130 is reloaded on the drilling rig power head 100, is driven to be lifted to the high position, and then the top end of the first drill rod 130 is connected with the bottom end of the second drill rod 130, and the drilling is performed after assembly, and the plurality of drill rods 130 are sequentially spliced until the drilling operation is completed. In order to realize the mutual assembly of the drill rods 130, the mounting portions are arranged at both ends of the drill rod 130, the mounting portions can be connected and fixed, the first end and the second end are connected, the length of the drill rod 130 as a whole is increased, and a deeper hole can be drilled.

[0035] Of course, in order to ensure that the avoiding groove 111 has sufficient arrangement space, the driving mechanism 120 comprises two synchronous motors 121 arranged in the casing 110 at intervals and a transmission shaft 122 driven by the two synchronous motors 121, and in the top view, the vertical axis of the transmission shaft 122 and the vertical axes of the two synchronous motors 121 are in a triangular distribution, and the vertical axis of the transmission shaft 122 is closer to the avoiding groove 111 than the vertical axes of the synchronous motors 121, that is, in the embodiment, the two synchronous motors 121 are arranged in the casing 110 away from the avoiding groove 111 to leave a preset space for the avoiding groove 111, and the transmission shaft 122 is close to the avoiding groove 111, the transmission shaft 122 is used to be connected with the drill rod 130, the connection can be realized through the shaft coupling, the drill rod 130 can be close to the avoiding groove 111, the axis of the drill rod 130 is close to the lifting center line, the drill rod 130 is prevented from receiving a large oblique force, and the stability is improved.

[0036] In the embodiment, the two synchronous motors 121 can be connected with the transmission shaft 122 through the transmission gear set, that is, the two synchronous motors 121 can drive the transmission shaft 122 to rotate through the transmission gear set, the drill rod 130 is driven to rotate by the transmission shaft 122, and the drilling action is realized. Since the transmission gear set is a common transmission structure, the embodiment will not be repeated.

[0037] A pile machine comprises a chassis 200, a main mast 300, a drilling rig power head 100 and a lifting adjusting mechanism.

[0038] The main mast 300 is erected on the chassis 200, the drilling power head 100 is arranged on the main mast 300 in an up-down manner, the lifting adjusting mechanism is used for adjusting the height position of the drilling power head 100 relative to the main mast 300, that is, the lifting adjusting mechanism can drive the drilling power head 100 to move up and down on the main mast 300, the vertical slide 310 for guiding the lifting movement of the drilling power head 100 is arranged on the main mast 300, the same side of the bottom of the casing 110, on which the avoiding slot 111 is arranged, is provided with the sliding seat 113 matched with the vertical slide 310, and when the side wall of the casing 110, on which the avoiding slot 111 is arranged, faces the vertical slide 310, the sliding seat 113 can be connected with the vertical slide 310, so as to realize the sliding connection between the drilling power head 100 and the main mast 300.

[0039] Specifically, the lifting adjusting mechanism comprises a winch mounted on the chassis 200 or the main mast 300, and a rope wound by the winch and passing through the top of the main mast 300 to connect the lifting connecting part, that is, the winch can provide power to provide driving force for the lifting connecting part from directly above the lifting connecting part, so as to drive the lifting connecting part to move up or down, and the lifting connecting part can avoid being subjected to horizontal force, thereby ensuring the stability of the overall movement of the drilling power head 100.

[0040] Specifically, the lifting adjusting mechanism comprises a winch mounted on the chassis 200 or the main mast 300, and a rope wound by the winch and passing through the top of the main mast 300 to connect the lifting connecting part, that is, the winch can provide power to provide driving force for the lifting connecting part from directly above the lifting connecting part, so as to drive the lifting connecting part to move up or down, and the lifting connecting part can avoid being subjected to horizontal force, thereby ensuring the stability of the overall movement of the drilling power head 100.

[0041] In the embodiment, in order to further improve the lifting height of the drilling power head 100, the width of the avoiding slot 111 is greater than the width of the overhanging end of the goose head 320, that is, when the drilling power head 100 is lifted to the upper part of the main mast 300, the overhanging end of the goose head 320 can enter the avoiding slot 111, so that the upper end of the drilling power head 100 can move above the goose head 320, and the overhanging end of the goose head 320 can avoid interfering with the drilling power head 100.

[0042] Specifically, in the embodiment, the width of the overhanging end is taken as 100 cm, the width of the avoiding slot 111 should be 120 cm, and a rubber buffer layer should be arranged on the inner wall of the avoiding slot 111 to avoid direct collision between the overhanging end and the inner wall of the avoiding slot 111.

[0043] Similarly, in order to ensure the lifting height of the rig headstock 100, the slide 113 is located below the lifting connection part, since the slide 113 is a connecting part of the main mast 300, it cannot be separated from the main mast 300, and the goose head 320 is located at the top of the main mast 300, that is, the fixed pulley 321 is located above the main mast 300, and the highest position is that the movable pulley 112 rises to the top and is attached to the bottom of the fixed pulley 321, at this time, it is required that the rig headstock 100 still maintains the connection with the main mast 300, therefore, only by arranging the slide 113 below the lifting connection part can it be realized, otherwise, the movable pulley 112 cannot be raised to the position of abutting with the fixed pulley 321 due to the limitation of the main mast 300 and the slide 113.

[0044] In the embodiment, the vertical slide 310 is provided as a T-shaped guide rail, and two T-shaped guide rails are symmetrically arranged on both sides of the main mast 300, and T-shaped grooves matched with the T-shaped guide rails are arranged on both sides of the slide 113, that is, when the slide 113 is assembled with the vertical slide 310, the slide 113 is wrapped on both outer sides of the main mast 300, and the T-shaped guide rail is inserted into the T-shaped groove, so as to avoid simple disengagement and achieve self-locking, thereby ensuring the stability of the sliding connection.

[0045] In the embodiment, in order to avoid disengagement of the slide 113 and the main mast 300, a first limiting part can be arranged at the top of the slide 113, and a second limiting part is arranged at the top of the main mast 300, when the second limiting part abuts against the first limiting part, the slide 113 can be limited to continue to go up, thereby achieving the purpose of preventing the slide 113 from disengaging from the main mast 300, realizing mechanical locking, and improving the protection performance.

[0046] Specifically, the chassis 200 is a main component for providing movable support for the pile driver, and a traveling mechanism is arranged at the bottom of the chassis 200, which can drive the whole to move. The traveling mechanism usually includes a driving wheel set or a track assembly or other structural components. In the embodiment, the traveling mechanism can adopt one or more structures, which can be selected according to actual needs.

[0047] The technical scheme of the utility model is described in detail above with reference to the drawings, and the described embodiments are used to help understand the idea of the utility model. The specific embodiments described in this paper are only examples of the spirit of the utility model. Those skilled in the art of the utility model can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the scope defined by the appended claims.

[0048] It should be noted that all directional indications (such as up, down, left, right, front, rear, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0049] In addition, the descriptions such as "first", "second", "one" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0050] In the present application, unless otherwise specifically defined and limited, the terms "connection", "fixing" and the like should be understood in a broad sense, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] In addition, the technical solutions of each embodiment of the present application can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection required by the present application.

Claims

1. A power head for a pile foundation construction drilling machine, characterized by The rig comprises: a housing and a driving mechanism installed in the housing and capable of driving a drill rod to rotate; wherein the housing is vertically provided with an avoiding slot extending to the top of the housing at a side wall, and a lifting connecting part is arranged in the avoiding slot.

2. A pile driving rig swivel as claimed in claim 1, characterised in that The vertical height of the avoiding slot is greater than or equal to half of the vertical height of the housing. And / or, the lifting connecting part is arranged at the lower end of the avoiding slot.

3. A pile driving rig swivel according to claim 1 or 2, c h a r a c t e r i s e d in that The driving mechanism comprises two synchronous motors arranged in the housing at intervals and a transmission shaft driven by the two synchronous motors. In a top view, the vertical axis of the transmission shaft and the vertical axes of the two synchronous motors are in a triangular distribution, and the vertical axis of the transmission shaft is closer to the avoiding slot than the vertical axes of the synchronous motors.

4. A pile driving rig swivel as claimed in claim 3, characterised in that The two synchronous motors are connected to the transmission shaft through a transmission gear set.

5. A pile driver, characterized in that The rig comprises: a base plate, a main mast erected on the base plate, a rig head as claimed in any one of claims 1 to 4, and a lifting adjusting mechanism for adjusting the height position of the rig head relative to the main mast; wherein the main mast is provided with a vertical slide for guiding the lifting movement of the rig head, and the housing is provided with a sliding seat matching the vertical slide at the bottom of the same side wall where the avoiding slot is formed; the side wall of the housing where the avoiding slot is formed faces the vertical slide.

6. The piling machine according to claim 5, characterized in that The lifting adjusting mechanism comprises a winch installed on the base plate or the main mast, and a rope wound by the winch and connected to the lifting connecting part by passing around the top of the main mast.

7. A piling machine according to claim 6, characterised in that The top of the main mast is provided with a goose head, a fixed pulley is installed on the overhanging end of the goose head, the lifting connecting part is a movable pulley, and the rope passes through the fixed pulley and is connected to the movable pulley.

8. The piling machine according to claim 7, characterized in that The width of the avoiding slot is greater than the width of the overhanging end.

9. The piling machine of claim 5, wherein, The sliding seat is located below the lifting connecting part.

10. The piling machine of claim 5, wherein, The vertical slide is a T-shaped guide rail, and two T-shaped guide rails are symmetrically arranged on both sides of the main mast, and T-shaped grooves matching the T-shaped guide rails are arranged on both sides of the sliding seat.

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