CN113266293A - Unlocking mechanism, drilling bucket and drilling machine - Google Patents

Abstract

The invention provides an unlocking mechanism, a drilling bucket and a drilling machine, wherein the unlocking mechanism comprises: support body, shifting block, swing dog, break away from driving piece and reset assembly. The frame body is connected to the drill top of the drill bucket in a sliding mode, and the frame body is suitable for pressing the unlocking connecting rod when sliding downwards; the shifting block is suitable for lifting along with the bulldozer; at least two swing check blocks are arranged at intervals along the length direction of the frame body, and each swing check block has a first state positioned on the lifting path of the shifting block and a second state moved away from the lifting path of the shifting block; the disengaging driving piece is suitable for driving the swing stop block to switch to a second state when being in contact with the swing stop block; the reset component is suitable for continuously providing elastic acting force for switching the swing stop block to the first state. According to the unlocking mechanism, the drilling bucket and the drilling machine, the drilling machine pressure plate and the soil pushing mechanism do not need to be restored to the highest position every time soil is taken, and can be matched with the shifting block on the soil pushing mechanism at different positions, so that the use is more flexible, and the purpose of adjusting the downward pressing stroke of the soil pushing mechanism is achieved.

Description

Unlocking mechanism, drilling bucket and drilling machine

Cross Reference to Related Applications

The present invention claims priority from chinese patent application No. 202110572179.8 entitled "unlocking mechanism, drilling bucket, and drilling rig" filed on 25/05/2021. The entire contents of the above application are incorporated by reference in their entirety.

Technical Field

The invention relates to the technical field of construction equipment, in particular to an unlocking mechanism, a drilling bucket and a drilling machine.

Background

At present, a rotary drilling rig is widely used for pile foundation construction, and the existing small-diameter sand bailing bucket is difficult to unload soil during clay layer construction, long in soil unloading time and seriously affects drilling efficiency. And use open drilling bucket of body, get rid of soil through rotatory impact, then can produce very big noise, can't be under construction near the residential area, and just positive and negative rotation gets rid of soil and can increase the energy consumption, and impact vibration also can influence the rig life-span.

Although part of the existing drilling bucket can realize the function that the power head of the drilling machine moves downwards to drive the push-down mechanism to operate so as to open the drilling bottom bucket door, the drilling bucket needs to hinge the drilling bucket push plate and the power head of the drilling machine, the push plate is reset through a reset spring, and the drilling bucket push plate can open the drilling bottom bucket door again only after completely recovering the highest position, so that the push stroke of the drilling bucket push plate is fixed and cannot be changed according to the soil feeding amount.

Disclosure of Invention

The invention provides an unlocking mechanism, a drilling bucket and a drilling machine, which are used for solving the problem that a drilling bottom bucket door of the drilling bucket is not easy to open and construction efficiency is influenced in the prior art.

The invention provides an unlocking mechanism, comprising:

the frame body is connected to the drill top of the drill bucket in a sliding mode and is suitable for pressing the unlocking connecting rod when sliding downwards;

the shifting block is arranged on the bulldozing mechanism and is suitable for lifting along with the bulldozing mechanism;

the swing stop blocks are arranged on the frame body, at least two swing stop blocks are arranged at intervals along the length direction of the frame body, the swing stop blocks are provided with a first state located on a lifting path of the shifting block and a second state moving away from the lifting path of the shifting block, and the swing stop blocks are suitable for being switched between the first state and the second state;

the disengaging driving piece is arranged below the swinging stop block and is suitable for driving the swinging stop block to be switched to the second state when being in contact with the swinging stop block;

and the resetting component is connected with the swinging stop block and is suitable for continuously providing elastic acting force for switching the swinging stop block to the first state.

According to the unlocking mechanism provided by the invention, the reset assembly comprises a connecting rod and an elastic reset piece, the connecting rod is respectively and rotatably connected with each swing stop block and the elastic reset piece, and one end of the elastic reset piece, which is far away from the connecting rod, is rotatably connected with the frame body.

According to the unlocking mechanism provided by the invention, the elastic reset piece comprises a telescopic rod and a reset spring, one end of the telescopic rod is rotatably connected with the connecting rod, the other end of the telescopic rod is rotatably connected with the frame body, and the reset spring is sleeved on the telescopic rod.

According to the unlocking mechanism provided by the invention, the separation driving piece is a limiting block, and an inclined plane which is gradually far away from the swing stop block and the transfer shaft of the frame body from bottom to top is formed on the limiting block.

According to the unlocking mechanism provided by the invention, one side of the swing stop block close to the limiting block is of an arc surface structure.

The invention also provides a drilling bucket, which comprises a drilling body, a drilling bottom bucket door, a drilling top, a bulldozing mechanism, a locking piece, an unlocking connecting rod and any one unlocking mechanism, wherein the drilling bottom bucket door is hinged to the bottom of the drilling body; the drill top is arranged at the top end of the drill body; the bulldozing mechanism is connected to the drill top in a sliding mode, and one end of the bulldozing mechanism is located in the drill body; the locking piece is suitable for locking the under-drill hopper door; the unlocking connecting rod is connected to the drill top in a sliding mode and is suitable for driving the locking piece to unlock.

According to the drill bucket provided by the invention, the frame body and the unlocking connecting rod are arranged in parallel, the top end of the frame body is provided with the pressing part, and the pressing part is positioned at the upper end of the unlocking connecting rod.

According to the drilling bucket provided by the invention, the bulldozing mechanism comprises a pressure plate, a push rod and a bulldozing plate, the pressure plate is positioned outside the drilling body, one end of the push rod is connected with the pressure plate, the other end of the push rod is connected with the bulldozing plate, the push rod is connected with the drilling top in a sliding manner, the bulldozing plate is arranged in the drilling body in a sliding manner, and one side of the bulldozing plate, which is away from the push rod, is provided with a protrusion.

According to the drill bucket provided by the invention, the bulldozing plate is provided with the one-way air holes, one side of the bulldozing plate, which is far away from the push rod, is connected with the one-way valve plate in a sliding manner, and the one-way valve plate is suitable for covering the one-way air holes.

The invention also provides a drilling machine which comprises the unlocking mechanism or the drilling bucket.

According to the unlocking mechanism, the drilling bucket and the drilling machine, the shifting block is arranged on the soil shifting mechanism, and when the drilling machine pressure plate drives the soil shifting mechanism to move, the shifting block on the soil shifting mechanism can press the swinging stop block downwards so as to drive the frame body to move, so that unlocking is realized; after the unlocking is finished, the shifting block is separated from the swinging stop block under the action of the separation driving piece, and the swinging stop block is prevented from influencing the continuous downward movement of the bulldozer mechanism. In the process, the drilling bottom hopper door can be opened in time to unload soil, continuous action of unloading soil after the drilling bottom hopper door is opened is realized, the problem that the soil throwing noise is high due to rotary impact is eliminated, and construction can be carried out near residential areas at night. And the soil throwing link can be saved, the energy consumption of the drilling machine is reduced, and the service life of parts of the drilling machine can be prolonged without impact vibration.

According to the unlocking mechanism, the drill bucket and the drill, the unlocking structure is not required to be connected with the drill pressure plate, so that the drill pressure plate and the soil pushing mechanism are not required to be restored to the highest position every time soil is taken, and at least two swing stop blocks are arranged, so that the unlocking mechanism can be matched with the shifting blocks on the soil pushing mechanism at different positions, the use is more flexible, and the purpose of adjusting the downward pressing stroke of the soil pushing mechanism is achieved.

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 those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of an unlocking mechanism provided by the present invention;

FIG. 2 is a schematic structural view of a drilling bucket provided by the present invention;

fig. 3 is a schematic structural view of a dozing mechanism in the drilling bucket provided by the invention.

Reference numerals:

100. a bulldozing mechanism; 110. A platen; 120. A push rod;

130. a bulldozer plate; 131. A one-way air hole; 132. A one-way valve plate;

133. a protrusion; 200. A drill body; 300. Drilling a top;

310. a guide sleeve; 400. Drilling a bottom hopper door; 510. A frame body;

511. a pressing part; 520. A connecting rod; 530. Swinging the stop block;

540. a return spring; 550. Shifting blocks; 560. A limiting block;

570. a telescopic rod; 610. Unlocking the connecting rod; 620. A locking spring;

630. a bucket door hook.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of 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 embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

An unlocking mechanism according to an embodiment of the present invention is described below with reference to fig. 1 and 2, and includes: a frame 510, a dial 550, a swing stop 530, a disengagement drive, and a reset assembly. Wherein, the frame body 510 is vertically connected to the drill top 300 of the drill bucket in a sliding manner, and the frame body 510 is suitable for pressing the unlocking connecting rod 610 when sliding downwards, so that the unlocking connecting rod 610 is driven to slide downwards to unlock, and the drill bottom hopper door 400 is automatically opened under the influence of gravity, so that soil unloading is facilitated.

The shifting block 550 is arranged on the soil moving mechanism 100 and is suitable for ascending and descending along with the soil moving mechanism 100, when soil is required to be unloaded, the power head of the drilling machine drives the soil moving mechanism 100 to move downwards, and at the moment, the shifting block 550 moves synchronously along with the soil moving mechanism 100.

The swing stopper 530 is provided on the housing 510 and is rotatably coupled to the housing 510. Swing block 530 has a first state located on the lifting path of paddle 550 and a second state moved away from the lifting path of paddle 550, swing block 530 being adapted to switch between the first state and the second state. In the first state, the shifting block 550 can act on the swing stopper 530 in the downward moving process, and then the frame body 510 is driven to move downward by the swing stopper 530, so that the unlocking operation is realized; in the second state, the swing stopper 530 moves away from the lifting path of the moving block 550, so that the moving block 550 can continue to lift with the bulldozer 100, thereby completing the drilling and soil unloading work.

At least two swing stoppers 530 are arranged at intervals along the length direction of the frame body 510, so that the shifting block 550 can be matched with different swing stoppers 530 at different heights, and the shifting block 550 and the bulldozer mechanism 100 can be unlocked without being lifted to the highest position. Therefore, the soil pushing mechanism 100 does not need to be fixedly connected with a power head of a drilling machine, and the drilling bucket is gradually filled with the dregs in the drilling process of the drilling bucket, so that the soil pushing mechanism 100 can be pushed to move upwards. The different soil feeding amounts enable the shifting block 550 to move upwards to different swing stoppers 530, so that the effect that the stroke of the bulldozer mechanism 100 can be changed according to the soil feeding amounts is achieved.

The separation driving member is disposed below the swing stopper 530, and is adapted to drive the swing stopper 530 to switch to the second state when contacting with the swing stopper 530, so that the swing stopper 530 is separated from the shift block 550 after the shift block 550 drives the swing stopper 530 and the frame 510 to move downwards to complete unlocking, thereby preventing the swing stopper 530 from blocking the shift block 550 and the dozing mechanism 100 from moving downwards to unload the soil.

The reset assembly is connected to the swing stopper 530 and adapted to continuously provide an elastic force for the swing stopper 530 to switch to the first state. When the swing stopper 530 is switched to the second state by disengaging the driving member and the shifting block 550 passes through the swing stopper 530 along with the dozing mechanism 100, the reset assembly can switch the swing stopper 530 back to the first state in time to prepare for the next unlocking.

In one embodiment of the present invention, the reset assembly includes a connecting rod 520 and an elastic reset member. One end of the elastic reset piece departing from the connecting rod 520 is rotatably connected with the frame body 510. The connection rod 520 is rotatably connected to each swing stopper 530 and the elastic restoring member, respectively, so that each swing stopper 530 can be rotated in synchronization. When the swing stoppers 530 at the lowest side are in contact with the driven member, the swing stoppers 530 can be simultaneously switched to the second state, and in the process, the connecting rod 520 compresses the elastic restoring member to store energy. When the shifting block 550 passes the swing stoppers 530 along with the dozing mechanism 100, the elastic restoring member releases energy to pull the connecting rod 520 to move, so that each swing stopper 530 is switched back to the first state.

Optionally, the elastic reset element includes an expansion link 570 and a reset spring 540, one end of the expansion link 570 is rotatably connected to the connecting rod 520, the other end of the expansion link 570 is rotatably connected to the frame 510, and the reset spring 540 is sleeved on the expansion link 570. When the swing stopper 530 is switched to the second state, the expansion link 570 is shortened, and the return spring 540 is compressed; when the swing stopper 530 is switched to the first state, the expansion rod 570 is extended, and the return spring 540 is restored to the original length.

In an embodiment of the present invention, the disengagement driving member is a limit block 560, and an inclined surface gradually departing from the swing stopper 530 and the coupling shaft of the frame 510 from bottom to top is formed on the limit block 560. When the swing stopper 530 moves down along with the moving block 550 to contact with the inclined surface of the limiting block 560, the moving block 550 drives the swing stopper 530 to move down continuously, the swing stopper 530 rotates under the action of the limiting block 560, the state is switched to the second state, and the moving block 550 moves down along with the dozing mechanism 100 after being separated from the swing stopper 530.

Further, one side of the swing stopper 530 close to the stopper 560 is of an arc structure, so that the stopper 560 can be better matched with the swing stopper 530, the swing stopper 530 can rotate more smoothly, and meanwhile, when the shifting block 550 ascends along with the bulldozer mechanism 100, the shifting block 530 can be easily shifted to rotate and smoothly reach the position above the swing stopper 530.

In one embodiment of the invention, a drilling bucket is also provided. Referring to fig. 1 to 3, the drilling bucket includes a drill body 200, a drilling floor bucket door 400, a drilling roof 300, a dozing mechanism 100, a lock, an unlocking link 610, and an unlocking mechanism as described in any one of the above.

The door 400 is hinged to the bottom of the drill body 200, and the hinged shaft of the door 400 is horizontal and can open and close the opening at the bottom of the drill body 200 by rotation. The drill top 300 is disposed at the top end of the drill body 200 and is fixedly connected with the drill body 200. The dozing mechanism 100 is slidably connected to the drill roof 300 and has one end located in the drill body 200, and pushes the dozing mechanism 100 to move upward as the drill body 200 is gradually filled with the dirt, and pushes the dirt to be discharged as the dozing mechanism 100 moves downward by the power head of the drilling machine. The locking piece adopts a bucket door hook 630, and the bucket door hook 630 is rotatably connected to the inner wall of the bottom of the drill body 200 and is suitable for locking the bottom bucket door 400. The unlocking link 610 is slidably connected to the drill top 300 and the door hook 630, and the door hook 630 is driven to rotate to complete the unlocking action when the unlocking link 610 slides downwards.

The unlocking link 610 is provided with a locking spring 620, and after the acting force of the frame body 510 on the unlocking link 610 is removed, the unlocking link 610 is reset under the action of the locking spring 620, so that the door hook 630 is restored to the locking position, and the device is ready for locking the drilling floor door 400 again.

Optionally, the holder body 510 is parallel to the unlocking link 610, a pressing portion 511 is disposed at the top end of the holder body 510, and the pressing portion 511 is located at the upper end of the unlocking link 610. When the holder 510 moves down, the pressing portion 511 acts on the top end of the unlocking link 610 to push the unlocking link 610 to move down.

In one embodiment of the present invention, dozing mechanism 100 includes a pressure plate 110, a push rod 120, and a dozing plate 130. The pressure plate 110 is located outside the drill body 200 and the power head of the drill can act directly on the pressure plate 110. One end of the push rod 120 is connected with the pressure plate 110, the other end is connected with the bulldozing plate 130, and the push rod 120 is slidably connected with the drill top 300. The push rods 120 may be provided in two or more numbers, increasing the structural strength of the dozing mechanism 100 and making the dozing mechanism 100 more stable when sliding. The blade 130 is slidably disposed in the drill body 200 with its axis parallel to the drill body 200 and its edge abutting the inner wall of the drill body 200. One side of the dozer plate 130 departing from the push rod 120 is provided with a protrusion 133, so that the adhesion between clay and the dozer plate 130 can be effectively reduced.

Optionally, a one-way air hole 131 is formed in the dozing plate 130, a one-way valve plate 132 is slidably connected to one side of the dozing plate 130, which is away from the push rod 120, and the one-way valve plate 132 is adapted to cover the one-way air hole 131. In the drilling process, the one-way valve plate 132 slides upwards under the action of the muck and is attached to the bulldozing plate 130 to block the one-way air holes 131, so that the muck is prevented from passing through the one-way air holes 131; in the soil unloading process, the one-way air holes 131 slide downwards under the influence of gravity, the one-way air holes 131 are opened, the discharge of muck is facilitated, the time consumption of soil unloading is reduced, and the drilling efficiency is improved.

Optionally, the shifting block 550 is arranged on the push rod 120, an avoidance port for the shifting block 550 to pass through is arranged on the drill top 300, and when the bulldozer mechanism 100 ascends and descends, the shifting block 550 can move along with the push rod 120 and pass through the drill top 300.

In yet another embodiment of the present invention, a drilling rig is provided, which comprises the unlocking mechanism of any of the above embodiments or the drilling bucket of any of the above embodiments, and the power head of the drilling rig can push the soil pushing mechanism 100 to move downwards so as to open the door 400 of the drilling bucket and unload soil.

According to the unlocking mechanism, the drilling bucket and the drilling machine, continuous actions of firstly opening the drilling bottom bucket door 400 and then unloading soil are realized through a linkage unlocking structure, the time consumed by unloading soil is reduced, and the drilling efficiency is improved. Eliminate rotatory impact and get rid of the big problem of native noise, can develop the construction near residential area night. The soil throwing link is omitted, the energy consumption of the drilling machine can be reduced, and the service life of parts of the drilling machine can be prolonged without impact vibration. Moreover, the structure is more reliable, and faults are not easy to generate.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. An unlocking mechanism, comprising:

the frame body is connected to the drill top of the drill bucket in a sliding mode and is suitable for pressing the unlocking connecting rod when sliding downwards;

the shifting block is arranged on the bulldozing mechanism and is suitable for lifting along with the bulldozing mechanism;

the swing stop blocks are arranged on the frame body, at least two swing stop blocks are arranged at intervals along the length direction of the frame body, the swing stop blocks are provided with a first state located on a lifting path of the shifting block and a second state moving away from the lifting path of the shifting block, and the swing stop blocks are suitable for being switched between the first state and the second state;

the disengaging driving piece is arranged below the swinging stop block and is suitable for driving the swinging stop block to be switched to the second state when being in contact with the swinging stop block;

and the resetting component is connected with the swinging stop block and is suitable for continuously providing elastic acting force for switching the swinging stop block to the first state.

2. The unlocking mechanism according to claim 1, wherein the reset assembly includes a connecting rod and an elastic reset member, the connecting rod is rotatably connected to each of the swing stoppers and the elastic reset member, respectively, and an end of the elastic reset member facing away from the connecting rod is rotatably connected to the frame body.

3. The unlocking mechanism as claimed in claim 2, wherein the elastic reset member includes a telescopic rod and a reset spring, one end of the telescopic rod is rotatably connected to the connecting rod, the other end of the telescopic rod is rotatably connected to the frame body, and the reset spring is sleeved on the telescopic rod.

4. The unlock mechanism of claim 1, wherein the disengagement driving member is a limiting block, and an inclined surface is formed on the limiting block, and the inclined surface is gradually away from the swing block and the coupling shaft of the frame body from bottom to top.

5. The unlock mechanism of claim 4 wherein a side of said swing stop adjacent said stop is a curved surface.

6. A drilling bucket, characterized by comprising a drilling body, a drilling floor bucket door, a drilling roof, a bulldozing mechanism, a locking piece, an unlocking connecting rod and the unlocking mechanism according to any one of claims 1-5, wherein the drilling floor bucket door is hinged at the bottom of the drilling body; the drill top is arranged at the top end of the drill body; the bulldozing mechanism is connected to the drill top in a sliding mode, and one end of the bulldozing mechanism is located in the drill body; the locking piece is suitable for locking the under-drill hopper door; the unlocking connecting rod is connected to the drill top in a sliding mode and is suitable for driving the locking piece to unlock.

7. The drilling bucket according to claim 6, wherein the frame body is arranged in parallel with the unlocking connecting rod, and a pressing part is arranged at the top end of the frame body and is positioned at the upper end of the unlocking connecting rod.

8. The drilling bucket as claimed in claim 6, wherein the bulldozing mechanism comprises a pressure plate, a push rod and a bulldozing plate, the pressure plate is positioned outside the drilling body, one end of the push rod is connected with the pressure plate, the other end of the push rod is connected with the bulldozing plate, the push rod is connected with the drilling roof in a sliding mode, the bulldozing plate is arranged in the drilling body in a sliding mode, and a side, away from the push rod, of the bulldozing plate is provided with a protrusion.

9. The drilling bucket according to claim 8, wherein a one-way air hole is formed in the bulldozing plate, a one-way valve plate is connected to one side, away from the push rod, of the bulldozing plate in a sliding mode, and the one-way valve plate is suitable for covering the one-way air hole.

10. A drilling rig comprising an unlocking mechanism according to any of claims 1-5 or a drilling bucket according to any of claims 6-9.

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