CN210343218U

CN210343218U - Hydraulic impactor

Info

Publication number: CN210343218U
Application number: CN201920930276.8U
Authority: CN
Inventors: 张世军; 胡志柔; 张金滨
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-04-17
Anticipated expiration: 2029-06-20

Abstract

The utility model provides a hydraulic impactor, includes top connection (1), ejector (6), goes up casing (2), casing (3), water cavity (11) and lower clutch (4) down, inlet channel is connected in top connection (1), end-to-end connection has ejector (6), be equipped with jet orifice (62) in ejector (6), can guide the injection direction of inside liquid, ejector (6) rear portion is equipped with casing (2) and lower casing (3), upward be equipped with circulation power device in casing (2), be equipped with water cavity (11) in casing (3) down, be equipped with impact hammer, return means and anvil (113) in water cavity (11), circulation power device can drive the reciprocal impact anvil (113) of impact hammer, and lower casing (3) rear end is connected with lower clutch (4), and the drilling rod is connected to lower clutch (4). The utility model provides a impacter surges, broken rock is efficient, and the drill bit is longe-lived, can satisfy multiple frequency of operation's demand.

Description

Hydraulic impactor

Technical Field

The utility model relates to a drilling device mainly is applied to fields such as oil engineering, mining engineering, geotechnical engineering, concretely relates to hydraulic impacter.

Background

When drilling meets hard stratum, the common drill bit has low drilling efficiency, short service life, long drilling period and higher cost, so that the improvement of the drilling speed of the deep well becomes more important. The impact rotary drilling technology is one of the most effective methods for solving the hard rock drilling problem, and a hole bottom power machine tool for generating continuous impact load by using drilling flushing liquid as a power medium and utilizing high-pressure liquid flow energy and dynamic water hammer energy. Usually directly connected to the upper part of the core drill, and continuously transmitting impact load to the core drill while rotary drilling, so that the drill can crush rock by rotary cutting and impact. The drilling fluid is mainly used for geological core drilling, and is particularly suitable for application in hard and broken rock formations and medium-hardness coarse heterogeneous rock formations. Due to the structural design, the hydraulic impacter on the market has the problems that important working parts are easy to erode and abrade, welding and splicing parts crack and the like during working, so that pressure leakage is caused, the working pressure of the upper cavity and the lower cavity of the piston cannot be normally maintained, the impacter cannot continuously and normally work, and the performance and the service life of the hydraulic hammer are influenced.

SUMMERY OF THE UTILITY MODEL

For solving the problem that above-mentioned impacter deep well work is unstable, working life is short, work efficiency is low, the utility model provides a novel impacter that surges to improve hard formation drilling efficiency, improve the drill bit life-span, reduce well drilling cycle, reduce cost.

The technical scheme of the utility model as follows:

the utility model provides a hydraulic impactor, includes top connection, ejector, goes up casing, lower casing, water cavity and lower clutch, top connection inlet pipe, end-to-end connection has the ejector, be equipped with the jet orifice in the ejector, the drilling fluid is after the top connection gets into the ejector, flows from the assigned position jet orifice, and the ejector rear portion is equipped with casing and lower casing, be equipped with circulation power device in the top connection casing, internal water cavity, impact hammer and the return means of being equipped with of inferior valve, water cavity or inferior valve body bottom are equipped with the anvil, circulation power device can drive the impact hammer reciprocal impact anvil, and the casing rear end is connected with the lower clutch down, and the drilling rod is connected to the lower clutch.

According to the hydraulic impactor, the circulating power device comprises a crank-slider mechanism, and the tail end of the crank-slider mechanism is connected with the impact hammer.

Further, the punching hammers comprise one or more punching hammers, and the circulating power device is connected with the nearest punching hammer. Preferably, the number of the impact hammers is more than two, and the kinetic energy provided by the circulating power device is transmitted forward step by step through the impact hammers.

According to the hydraulic impactor, the circulating power device comprises the turbine and the connecting rod, the size of the working surface of the turbine is matched with that of the jet orifice, preferably, the working surface of the turbine is made of a light high-strength material, one end of the connecting rod is connected with one side of the circumference of the turbine, and the other end of the connecting rod is connected with the impact hammer. Preferably, a plurality of connecting holes are formed in the outer side face of the turbine according to different radiuses, and multiple working frequencies are provided for the connecting rod.

Further, a turbine bin is arranged in the upper shell, and the turbine can be installed in the turbine bin through a turbine shaft. Preferably, the turbine bin is close to the middle position of the upper shell.

According to the hydraulic impactor, the water cavity comprises the water channel, the water outlet and the anvil, the hollow water channel is arranged on the side wall of the water cavity, the water outlet is formed in the bottom of the water channel, and the anvil is arranged on the bottom plane of the water cavity.

Furthermore, the return device comprises a spring, the spring is assembled in an anvil at the bottom of the water cavity, and the height of the spring is greater than that of the anvil.

Furthermore, the impact hammer is arranged on the upper portion of a spring in the water cavity, between the anvil and the water cavity, or between the water cavity and the lower shell, or movably connected between the lower shell and the upper shell, and when the impact hammer impacts the anvil under the action of the circulating power device, the anvil, the water cavity or the lower shell can move back and forth along with the impact hammer.

According to the hydraulic impactor, the water distribution plate is arranged at the upper part of the water cavity, the connecting rod hole is formed in the water distribution plate and used for placing the connecting rod, and the position size of the connecting rod hole is matched with the motion track of the connecting rod. Preferably, the periphery of the connecting rod hole is provided with a baffle.

Furthermore, a side water opening is arranged between the water channel and the inner wall of the water cavity, and the height of the side water opening is higher than the maximum height of the impact hammer in the water cavity. Preferably, the side nozzle is arranged obliquely outward.

The beneficial effects of the utility model reside in that:

1. the utility model discloses the impacter surges truns into the kinetic energy of slider-crank mechanism through the kinetic energy of drilling fluid, truns into the kinetic energy of impact hammer again, has realized the high-speed reciprocal jarring of impacter, and the rotary cutting effect of cooperation drilling rod transmission has very big improvement broken rock efficiency among the drilling process.

2. The utility model discloses the impacter surges, through the cooperation of multistage impact hammer and spring, to the striking destruction of impacter itself when having reduced the impact hammer, improves the life of impacter. Meanwhile, the connecting holes formed in the turbine meet the requirements of various working frequencies.

Drawings

The aspects and advantages of the present application will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention.

In the drawings:

FIG. 1 is a schematic structural view of a hydraulic impactor in accordance with the embodiment 1;

FIG. 2 is a half sectional view of a hydraulic impactor;

FIG. 3 is a schematic structural view of the upper joint;

FIG. 4 is a schematic structural view of an ejector;

FIG. 5 is a schematic structural view of the upper shell, wherein (a) is an isometric view and (b) is a half sectional view;

FIG. 6 is a schematic structural view of a water chamber, wherein (a) is a half sectional view and (b) is a top view;

FIG. 7 is a schematic structural view of the lower housing;

the components represented by the reference numerals in the figures are:

1. the device comprises an upper joint, 2, an upper shell, 21, a turbine bin, 22, a turbine shaft hole, 3, a lower shell, 31, a first connecting table, 32, a second connecting table, 4, a lower joint, 5, a turbine, 51, a turbine shaft, 6, an ejector, 7, a connecting rod, 8, a first impact hammer, 9, a second impact hammer, 10, a spring, 11, a water cavity, 111, a water channel, 112, a water outlet, 113, an anvil, 114, a water diversion plate, 115, a baffle, 116 and a side water gap.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. It should be noted that these embodiments are provided so that this disclosure can be more completely understood and fully conveyed to those skilled in the art, and the present disclosure may be implemented in various forms without being limited to the embodiments set forth herein.

Example 1

Referring to fig. 1 and 2, fig. 1 and 2 are schematic structural diagrams of a hydraulic impactor in this embodiment, including top connection 1, ejector 6, top housing 2, bottom housing 3, water cavity 11 and lower clutch 4, top connection 1 connects the drilling fluid pipeline, has followed by ejector 6, and ejector 6 is connected with top housing 2 and bottom housing 3 at the back, is equipped with circulation power device in top housing 2, is equipped with water cavity 11 in bottom housing 3, is equipped with impact hammer, return means and anvil 113 in the water cavity, circulation power device can drive the impact hammer and impact anvil 113 to and fro, and bottom connection 4 is connected with lower clutch 4 in bottom housing 3 rear end, and lower clutch 4 connects the drilling rod.

Further, the structure of the upper joint 1 is shown in fig. 3, the front part of the upper joint is of a conical structure, and a liquid inlet channel is arranged inside the upper joint.

Further, the ejector 6 is divided into two sections, see fig. 4, the upper end is a third connecting platform 61, which is connected with the upper joint 1, and the lower end is connected with the upper shell 2. The inside of the drilling fluid jet device is provided with a jet port 62, the length of the jet port 62 is slightly smaller than the inner diameter of the jet device 6, the width is narrow, and drilling fluid can be injected at high speed after entering from the upper connector 1.

Further, the circulating power device in the upper shell 2 is a slider-crank mechanism and comprises a turbine 5 and a connecting rod 7, the turbine 5 is positioned at the outlet of the jet orifice 62, the fan blades of the turbine are made of light high-strength materials, and the width of the fan blades is larger than that of the jet orifice 62. One end of the connecting rod 7 is connected with one side of the circumference of the turbine 5, and the other end of the connecting rod is connected with the impact hammer. Preferably, a plurality of connecting holes are formed in the outer side surface of the turbine 5 according to different radiuses, so that various working frequencies can be provided for the connecting rod 7.

Referring to fig. 5, the upper housing 2 is provided with a turbine chamber 21 and a turbine shaft hole 22 at an upper portion, and the turbine 5 can be mounted in the turbine shaft hole 22 of the turbine chamber 21 via a turbine shaft 51. Preferably, the turbine chamber 21 is close to the middle position of the upper casing 2, and the connecting rod 7 connected to the turbine 5 is close to the middle position as much as possible under the premise of ensuring that the turbine shaft 51 can provide enough supporting force for the turbine shaft.

In this embodiment, the end of the connecting rod 7 is connected with two hammers, which are respectively a first hammer 8 and a second hammer 9, the connecting rod 7 is connected with the first hammer 8, and when the turbine 5 rotates, the connecting rod 7 drives the first hammer 8 to perform a reciprocating linear motion in the water cavity 11 to impact the second hammer 9 forward.

Referring to fig. 6, the water chamber 11 includes a water channel 111, a water outlet 112, an anvil 113 and a water diversion plate 114, the water channel 111 is located on a side wall of the water chamber 11 and is divided into three annular openings, so that the strength of the water chamber 11 can be ensured while water is drained. The bottommost part of the water channel 111 is provided with a water outlet 112, the bottom plane of the water cavity 11 is provided with an anvil 113, the upper part of the water cavity 11 is provided with a water diversion plate 114, and the water diversion plate 114 is used for dredging the water left on the turbine 5 towards the water channel 111 outside.

Further, a connecting rod hole is formed in the water distribution plate 114 and used for placing the connecting rod 7, and the position size of the connecting rod 7 is matched with the motion track of the connecting rod 7. Preferably, the periphery of the connecting rod hole is provided with a baffle 115 to prevent drilling fluid from entering the water cavity 11 from the connecting rod hole.

Further, a side water port 116 is arranged between the water channel 111 and the inner wall of the water cavity 11, the height of the side water port 116 is higher than the maximum height of the impact hammer when the impact hammer moves in the water cavity 111, and if drilling fluid flows into the water cavity 11, the drilling fluid can be discharged from the side water port 116 when the impact hammer moves to the highest position. Preferably, the side water port 116 is disposed obliquely outward to prevent drilling fluid in the water channel 111 from flowing backward into the water cavity 11.

In the present embodiment, a spring 10 is placed in the anvil 113, the height of the spring 10 is greater than that of the anvil 113, and the second punch 9 and the first punch 8 are placed above the spring 10.

In this embodiment, the two ends of the lower housing 3 are respectively provided with a first connecting platform 31 and a second connecting platform 32, referring to fig. 7, the first connecting platform 31 and the second connecting platform 32 are respectively in threaded connection with the upper housing 2 and the lower connector 4, so that the installation and maintenance are convenient.

Furthermore, the water cavity 11 is movably connected with the lower shell 3, and the water cavity 11 can reciprocate under the action of the connecting rod 7. Alternatively, the water chamber 11 may be fixed, and in this case, the anvil 113 may be movable relative to the inner wall of the water chamber 11 as a separate component from the inner wall of the water chamber 11. Of course, it is also possible to provide a movable connection between the lower housing 3 and the upper housing 2. Through the mode, when the connecting rod 7 drives the first punch hammer 8 to reciprocate, the regular impact of the anvil 113 with the drill rod can be ensured.

Specifically, when the drilling machine starts to work, drilling fluid flowing at a high speed flows into the ejector 6 through the upper connector 1, the drilling fluid flowing out of the ejector 6 still keeps high speed and high pressure, the turbine 5 in the upper shell 2 is pushed to rotate, the turbine 5 drives the first impact hammer 8 to move downwards, after the first impact hammer 8 impacts the second impact hammer 9, the second impact hammer 9 also obtains downward kinetic energy, and then the first impact hammer 8 and the second impact hammer 9 continue to move downwards and simultaneously compress the spring 10 until the second impact hammer 9 impacts the anvil 113, so that first impact is realized. After the second impact hammer 9 impacts the anvil 113, the water cavity 11 is driven to move downwards to impact a drill rod in the lower joint 4, so that a certain impact force is given to the drill bit, and the rock crushing efficiency is improved. After the first punch 8 moves downwards to the extreme position, the first punch moves upwards in a return stroke under the drive of the turbine 5, and after the second punch 9 impacts the anvil 113, the kinetic energy is reduced to 0, and the second punch moves upwards to reset under the action of the spring 10. Therefore, the impactor completes one reciprocating motion, the whole reciprocating shock process is achieved, the impactor starts the second reciprocating motion, and high-frequency cyclic shock is achieved.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a hydraulic impactor, its characterized in that includes top connection (1), ejector (6), goes up casing (2), casing (3), water cavity (11) and lower clutch (4) down, the inlet fluid pipeline is connected in top connection (1), end-to-end connection has ejector (6), be equipped with jet orifice (62) in ejector (6), can guide the injection direction of inside liquid, ejector (6) rear portion is equipped with casing (2) and casing (3) down, upward be equipped with circulation power device in casing (2), be equipped with water cavity (11) in casing (3) down, impact hammer and return means, circulation power device can drive the impact hammer and carry out reciprocating motion, and casing (3) rear end is connected with lower clutch (4) down.

2. A hydraulic impactor as defined in claim 1, wherein the cyclical power means includes a slider-crank mechanism having an end connected to the ram.

3. A hydraulic impactor as claimed in claim 2, wherein the rams include one or more and the cycle power means is connected to the nearest ram.

4. A hydraulic impactor as claimed in claim 3, characterized in that said cyclic power means comprise a turbine (5) and a connecting rod (7), the size of the working surface of said turbine (5) being adapted to the size of the jet orifice (62), said connecting rod (7) being connected at one end to one side of the circumference of the turbine (5) and at the other end to the hammer punch.

5. A hydraulic impactor according to claim 4, characterized in that a turbine chamber (21) is provided in the upper casing (2), and the turbine (5) can be mounted in the turbine chamber (21) via a turbine shaft (51).

6. The hydraulic impactor as defined in claim 1, wherein the water chamber (11) comprises a water channel (111), a water outlet (112) and an anvil (113), the side wall of the water chamber (11) is provided with the hollow water channel (111), the bottom of the water channel (111) is provided with the water outlet (112), and the bottom plane of the water chamber (11) is provided with the anvil (113).

7. A hydraulic impactor as claimed in claim 6, characterized in that said return means comprise a spring (10), said spring (10) being fitted in an anvil (113) at the bottom of the water chamber (11), the height of the spring (10) being greater than the height of the anvil (113).

8. A hydraulic impactor as claimed in claim 6, characterized in that the hammer is movably connected to the upper part of the spring (10) in the water chamber (11), between the anvil (113) and the water chamber (11), or between the water chamber (11) and the lower casing (3), or between the lower casing (3) and the upper casing (2), and is capable of relative movement.

9. A hydraulic impactor according to claim 6, characterized in that the upper part of the water cavity (11) is provided with a water diversion plate (114), the water diversion plate (114) is provided with a connecting rod hole, and the position and the size of the connecting rod hole are matched with the motion trail of the connecting rod (7).

10. A hydraulic impactor according to claim 6, characterized in that a side water gap (116) is provided between the water channel (111) and the inner wall of the water chamber (11), the height of the side water gap (116) being higher than the maximum height of the hammer in the water chamber (11).