CN217380532U - Rock-soil coring assembly and integrated down-the-hole drill - Google Patents

Abstract

The utility model discloses a core subassembly and integral type down-the-hole drill are got to ground belongs to down-the-hole drill drilling technical field. The utility model discloses a core subassembly includes drilling rod and drill bit, the drill bit is connected to the one end of drilling rod, and the impacter is connected to the other end, and the sleeve pipe cover is established in the drilling rod, sleeve pipe and the coaxial setting of drilling rod, and this sheathed tube inner chamber communicates each other with the inner chamber of drill bit. An impact head is arranged between the drill rod and the impactor, one end of the impact head is sleeved in the impactor, and the other end of the impact head is connected with the drill rod. The utility model discloses an integral type down-the-hole drill freely switches in the operating mode of blasting hole and two kinds of differences of core operation, convenient operation, simple, and do not influence down-the-hole drill original usage, and the different operating mode of two kinds of demands can be accomplished in single operation, has reduced equipment input cost, has promoted work efficiency.

Description

Rock-soil coring assembly and integrated down-the-hole drill

Technical Field

The utility model belongs to the technical field of down-the-hole drill drilling, more specifically say, relate to a core subassembly and integral type down-the-hole drill are got to ground.

Background

The down-the-hole drill is mainly used for blasting holes in mines, and then explosives are filled into the blasting holes for digging mountains and taking stones and ores. The important components of a down-the-hole drill include a drill bit and a down-the-hole hammer, which act as: the drill bit is arranged at the lower part of the down-the-hole impactor, the high-frequency impact force of the impactor, the rotary torque force of the rotary reduction box and the downward propelling force of the driving device are utilized to complete the drilling action, and rock debris is pumped away by the dust removal system.

Existing down-the-hole drills are equipped with a special drill bit for blasting holes. However, in the actual working process, rock and soil at a certain depth are often required to be sampled and detected, and at this time, a special core drilling machine is required to be purchased for core drilling operation. The production cost is increased, the switching operation between the two machine types is more complicated, and the working efficiency is reduced.

Through the retrieval, chinese patent application No. 202022336678.0's application discloses a drill bit of down-the-hole drill, drill bit in this application, including transmission post and drill bit body, the one end fixedly connected with spliced pole that the transmission post is close to the drill bit body, the circumference of spliced pole is provided with the external splines, the spread groove has been seted up to the one end that the drill bit body is close to the transmission post, the drill bit body is provided with the internal splines in the circumferential position of spread groove, external splines and internal splines looks adaptation, the one end fixedly connected with go-between that the drill bit body is close to the transmission post, the go-between is the same with the external diameter of transmission post, threaded connection has solid fixed ring on go-between and the transmission post outer wall. The drill bit of this application has the effect of reducing the waste of metallic material, but is not suitable for rock-soil coring operations.

SUMMERY OF THE UTILITY MODEL

1. Problems to be solved

To the problem mentioned above, the utility model provides a core subassembly and integral type down-the-hole drill are got to ground. Adopt the technical scheme of the utility model, when meetting two kinds of operating modes in engineering construction, need not to purchase two kinds of special models, the different operating mode of two kinds of demands can be accomplished in single operation, has reduced equipment input cost, has promoted work efficiency.

2. Technical scheme

In order to solve the above problem, the utility model discloses the technical scheme who adopts as follows:

the utility model discloses a core subassembly is got to ground, including drilling rod and drill bit, the drill bit is connected to the one end of drilling rod, and the impacter is connected to the other end, and the sleeve pipe cover is established in the drilling rod, sleeve pipe and the coaxial setting of drilling rod, and this sheathed tube inner chamber communicates each other with the inner chamber of drill bit.

Furthermore, an impact head is arranged between the drill rod and the impactor, one end of the impact head is sleeved in the impactor, and the other end of the impact head is connected with the drill rod.

Furthermore, the end part of the sleeve far away from the drill bit is provided with a plug, and the plug is in threaded connection with the sleeve.

The utility model discloses an integral type down-the-hole drill, including foretell a ground core subassembly, wherein, the impacter be located the top of ground all the time.

Furthermore, the impactor is connected with a propelling device, and the propelling device provides power for the impactor to drive the drill bit to move downwards so as to cut the rock soil.

The air compressor system is used for providing air for the impactor, and the hydraulic system is used for providing power for the propelling device.

Furthermore, the crawler type walking device further comprises a walking system, walking power of the walking system is provided by a hydraulic system, and the walking system is designed in a crawler type.

3. Advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a ground coring assembly, be equipped with the sleeve pipe in the drilling rod, wherein, the sleeve pipe is hollow structure, and the inner chamber of this sleeve pipe and the inner chamber of drill bit communicate with each other, and impacter high frequency strikes the drilling rod to make the drill bit obtain the impact force, cuts into the core and adorns in the sleeve pipe with the ground; in addition, the front end of the drill bit is designed to be conical, so that the drilling speed can be accelerated, and a certain guiding effect can be achieved;

(2) the utility model discloses a rock-soil coring assembly, be equipped with the impact head between drilling rod and the impacter, like this, the high-frequency impact of impacter directly acts on the impact head, makes the damage that the impacter received reduce greatly, can effectively prolong the life of drilling rod;

(3) in the rock-soil coring assembly, the end part of the sleeve far away from the drill bit is provided with the plug for stopping and limiting the soil core entering the sleeve, one end of the plug is screwed into the end part of the sleeve to be screwed with the sleeve, and the other end of the plug is left outside the sleeve, so that the sleeve can be conveniently taken down; in addition, one end of the drill rod is provided with an external thread, the other end of the drill rod is provided with an internal thread, the internal thread and the external thread are mutually matched, and a plurality of drill rods can be connected through the mutual matching of the internal thread and the external thread so as to drill soil cores with different depths;

(4) the integrated down-the-hole drill of the utility model can be freely switched between two different working conditions of hole blasting and earth core taking operation, the operation is convenient and simple, and the original use of the down-the-hole drill is not influenced; when meeting two kinds of operating modes in engineering construction, need not to purchase two kinds of special models, the different operating modes of two kinds of demands can be accomplished in single operation, have reduced equipment input cost, have promoted work efficiency.

Drawings

Fig. 1 is a schematic structural view of a rock-soil coring assembly of the present invention;

FIG. 2 is a schematic structural view of the integrated down-the-hole drill of the present invention;

in the figure: 11. a drill stem; 12. a drill bit; 13. a sleeve; 14. a plug;

2. an impactor; 3. an impact head; 4. rock and soil; 5. a propulsion device; 6. a hydraulic system; 7. an air compressor system; 8. a traveling system; 9. and (7) a soil core.

Detailed Description

The present invention will be further described with reference to the following specific embodiments.

Example 1

As shown in fig. 1, the rock-soil coring assembly of the present embodiment includes a drill rod 11 and a drill bit 12, one end of the drill rod 11 is connected to the drill bit 12, the other end is connected to the impactor 2, a sleeve 13 is sleeved in the drill rod 11, and the sleeve 13 and the drill rod 11 are coaxially disposed. Wherein, the sleeve 13 is a hollow structure and is used for storing the soil core 9. The lumen of the cannula 13 is in communication with the lumen of the drill bit 12. The impactor 2 is used for impacting the drill rod 11 to enable the drill bit 12 to obtain impact force, rock soil is cut into a core and is stored in the casing 13, and the front end of the drill bit 12 is designed to be conical, so that the drilling speed can be accelerated, and a certain guiding effect can be achieved. When the soil core 9 in the sleeve 13 is full, the complete soil core 9 can be taken out.

Specifically, the drilling rod 11 be hollow structure, the one end of drilling rod 11 is equipped with the external screw thread, the other end is equipped with the internal thread, and should interior, external screw thread agree with each other, can connect many drilling rods 11 through mutually supporting of interior, external screw thread to bore the soil core 9 of getting the different degree of depth. The end part of the sleeve 13 far away from the drill bit 12 is provided with a plug 14 for stopping and limiting the soil core 9 entering the sleeve 13. The whole of this end cap 14 is a cylinder, and the surface processing has the screw thread, and end cap 14 one end screw in sleeve pipe 13 tip and sleeve pipe 13 spiro union, and the sleeve pipe 13 outside is stayed to the other end, conveniently takes off the operation to sleeve pipe 13.

Due to the long-term impact of the impacter 2 on the drill rod 11, the drill rod 11 is easily damaged, and the replacement of the entire drill rod 11 is not only troublesome, but also costly. In order to prolong the service life of the drill rod 11, an impact head 3 is arranged between the drill rod 11 and the impactor 2. In this way, the high-frequency impact of the impactor 2 acts directly on the impact head 3, so that damage to the impactor 2 is greatly reduced. Specifically, the end of the impactor 2 is provided with a clamping groove, one end of the impact head 3 is clamped in the clamping groove, the other end of the impact head 3 is provided with a blind hole, the inner wall of the blind hole is provided with a thread, and the end of the drill rod 11 with the external thread is fixed in the blind hole.

Example 2

As shown in FIG. 2, the integrated down-the-hole drill of this embodiment uses an earth coring assembly as described in example 1 for the coring operation 9. The integrated down-the-hole drill further comprises a propelling device 5, a hydraulic system 6, an air compressor system 7 and a traveling system 8. Wherein, the propulsion device 5 is connected with the impactor 2 and provides power for the impactor 2 to drive the drill bit 12 to move downwards; a hydraulic system 6 provides power to the propulsion device 5 and an air compressor system 7 provides air to the impactor 2. The walking system 8 provides walking support for the whole system, the walking system 8 adopts a crawler-type design and is applicable to different working environments, and the walking power of the walking system 8 is provided by the hydraulic system 6.

The integral type down-the-hole drill of this embodiment, when the field operation need take core operation, install and get the core subassembly, the ground 4 that drill bit 12 contact needs the sample, advancing device 5 gives decurrent pretightning force, impacter 2 is given in the air feed of air compressor machine system 7, impacter 2 begins to work this moment, provide the high frequency impact force, advancing device 5 lasts and impels downwards, cause drilling rod 11 to get soil to deeper ground, cut into the core and deposit in sleeve pipe 13 with the ground through drill bit 12, and simultaneously, the conical surface of drill bit 12 front end plays certain guide effect. And when the soil core 9 in the casing 13 is full, taking out the soil core 9, adding a new drill rod 11, and similarly placing the casing 13 in the newly added drill rod 11. The sampling requirements of different depths are met by the reciprocating movement, and finally, the complete soil core 9 can be taken out. In the working process, the impactor 2 is always positioned above the rock soil 4, so that the drill rod 11 can be conveniently lengthened and connected.

The integrated down-the-hole drill of the embodiment can expand the application range of the integrated down-the-hole drill through technical improvement, can be freely switched between two different working conditions of hole blasting and earth core taking operation, is convenient and simple to operate, and does not influence the original application of the down-the-hole drill. When meeting two kinds of operating modes in engineering construction, need not to purchase two kinds of special models, the different operating modes of two kinds of demands can be accomplished in single operation, have reduced equipment input cost, have promoted work efficiency.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims (7)

1. An earth coring assembly comprising a drill rod (11) and a drill bit (12), characterized in that: one end of the drill rod (11) is connected with the drill bit (12), the other end of the drill rod is connected with the impactor (2), the sleeve (13) is sleeved in the drill rod (11), the sleeve (13) and the drill rod (11) are coaxially arranged, and the inner cavity of the sleeve (13) is communicated with the inner cavity of the drill bit (12).

2. The coring assembly of claim 1, wherein: an impact head (3) is arranged between the drill rod (11) and the impactor (2), one end of the impact head (3) is sleeved in the impactor (2), and the other end of the impact head is connected with the drill rod (11).

3. The coring assembly of claim 2, wherein: and a plug (14) is arranged at the end part of the sleeve (13) far away from the drill bit (12), and the plug (14) is in threaded connection with the sleeve (13).

4. An integral type down-the-hole drill which characterized in that: an geotechnical coring assembly comprising according to any one of claims 1-3 wherein said impactor (2) is always above the soil (4).

5. The integrated down-the-hole drill of claim 4, wherein: the impactor (2) is connected with a propelling device (5), the propelling device (5) provides power for the impactor (2) to drive the drill bit (12) to move downwards to cut rock and soil.

6. The integrated down-the-hole drill of claim 5, wherein: the air compressor is characterized by further comprising a hydraulic system (6) and an air compressor system (7), wherein the hydraulic system (6) provides power for the propelling device (5), and the air compressor system (7) provides an air source for the impactor (2).

7. The integrated down-the-hole drill of claim 6, wherein: the walking mechanism is characterized by further comprising a walking system (8), walking power of the walking system (8) is provided by the hydraulic system (6), and the walking system (8) is designed in a crawler type.

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