A cluster impactor

Abstract

The application discloses a cluster impactor, which comprises a fixed part, a rotary joint assembly and a rotating part, the fixed part and the rotating part are connected through a driving rotating assembly, the top of the fixed part is provided with an air inlet and an air outlet, one end of the rotary joint assembly is located in the fixed part, and the other end is located in the rotating part, a drilling mechanism is arranged in the rotating part, high-pressure gas is introduced into the drilling mechanism through the air inlet and the rotary joint assembly, and is sprayed from the head of the drilling mechanism, a gas return assembly is further arranged in the rotating part to communicate the bottom of the rotating part with the rotary joint assembly, high-speed airflow and carried slag stones are returned to the rotary joint assembly through the gas return assembly and discharged from the air outlet, and the driving rotating assembly is fixed in the fixed part, and the drilling mechanism is arranged in the rotating part, so that the fixed part and the rotating part can rotate with each other without the help of external equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drilling equipment, in particular to a cluster impactor. BACKGROUND

[0002] The impactor is the basic equipment of drilling engineering equipment, which is generally divided into two types, one is pneumatic type, and the other is hydraulic type. The pneumatic impactor uses compressed air as the power medium and utilizes the energy of compressed air to generate continuous impact load of the hole bottom power tool. At the same time, high-pressure air passes through the drill pipe and is sprayed out of the drill bit, blowing the slag and dust inside the hole to the outside, thereby playing a role of hole cleaning and ensuring the cleanliness of the hole.

[0003] However, the traditional impactor is generally single, and its hole diameter is limited, which cannot or is difficult to realize large-diameter excavation. The impactor with large diameter needs a larger power source due to its large contact area, which puts high requirements on the power part.

[0004] With the development of science and technology, a large number of cluster impactors have appeared, but they generally use traditional transport vehicles equipped with guide rails, and drill rigs are installed on the guide rails. The drill rigs are connected with drill pipes, which are connected with the cluster impactor. The cluster impactor needs to be driven to rotate by external means. This method has high dependence on external equipment, which is not conducive to operation in harsh environments such as mountains, and therefore has great disadvantages. SUMMARY

[0005] The present application aims to solve the above problems and provides a cluster impactor.

[0006] The present application comprises a fixed part, a rotary joint assembly and a rotating part. The fixed part and the rotating part are connected by a driving rotating assembly. The top of the fixed part is provided with an air inlet and an air outlet. One end of the rotary joint assembly is located in the fixed part, and the other end is located in the rotating part. A drilling mechanism is arranged in the rotating part. High-pressure gas enters the drilling mechanism through the air inlet of the rotary joint assembly and is sprayed out of the head of the drilling mechanism. A gas return assembly is arranged in the rotating part to connect the bottom of the rotating part and the rotary joint assembly. High-speed airflow and slag carried by the high-speed airflow return to the rotary joint assembly through the gas return assembly and are discharged from the air outlet. The air outlet can be connected to an external air pipe, and then the slag and dust are discharged to the outside of the hole, thereby reducing dust. By fixing the driving rotating assembly in the fixed part and arranging the drilling mechanism in the rotating part, the two parts can rotate relative to each other without the aid of external equipment. In addition, the external high-speed airflow not only drives the drilling mechanism to drill, but also recycles waste gas and carries waste slag and dust generated by the drilling mechanism to the outside of the hole, thereby ensuring that the drilling process will not be repeatedly broken.

[0007] Specifically, the driving rotating assembly comprises a slewing bearing and a driving assembly, the bottom of the fixed part is provided with a mounting table, the driving assembly is arranged on the mounting table, the mounting table is fixed on the top of the slewing bearing, the top of the rotating part is provided with an upper cover plate, the rotating part is detachably arranged on the bottom of the slewing bearing through the upper cover plate, the driving assembly is driven to rotate the slewing bearing, and then the rotating part is driven to rotate relative to the fixed part.

[0008] Specifically, the driving assembly comprises a driving motor and a driving gear, the driving motor is fixed above the mounting table, the driving gear is arranged below the mounting table, the driving motor can drive the driving gear to rotate, and then the slewing bearing is driven to rotate through the mutual meshing of the teeth of the slewing bearing.

[0009] Specifically, the driving assembly is a plurality of groups, and is arranged in a circular array on the mounting table, the slewing bearing is driven to rotate through the driving of the plurality of groups of driving assemblies, and then the rotating part is driven to rotate, so that the impact direction is continuously adjusted in the drilling process, and the drilling efficiency is improved.

[0010] Specifically, the rotary joint assembly comprises a central rotary joint, the central rotary joint is fixed on the bottom of the fixed part, the bottom of the central rotary joint is provided with a connecting end, the connecting end is located in the rotating part, and a plurality of groups of connecting assemblies are further arranged, one end of the connecting assembly is fixed on the connecting end, the other end is fixed on the rotating part, the rotating part rotates to drive the connecting assembly to move, so that the rotor rotates, in the drilling process, the rotating part needs to rotate, and the external high-pressure air pipe cannot rotate together with the rotating part, so that the pipe winding phenomenon is prone to occur, therefore, the central rotary joint is arranged on the fixed part, the air inlet pipe is fixed on the stator side of the central rotary joint, and the air outlet pipe is fixed on the rotor, so that the pipes are prevented from winding in the drilling process, and the whole is tightly arranged together, so that the whole is more compact and beautiful.

[0011] Specifically, the drilling mechanism is not less than three groups, the area swept by the three groups of drilling mechanisms in one rotation is equal to the sectional area of the rotating part, and the plurality of groups of drilling mechanisms are used to drill at the same time, so that the local pressure is increased, and the crushing efficiency is improved.

[0012] Specifically, the drilling mechanism comprises an impactor and a drill bit, the impactor is fixed on the bottom of the rotating part, the drill bit is located outside the rotating part, and the drill bit penetrates through the bottom of the rotating part and is connected with the impactor.

[0013] Specifically, the gas return assembly comprises a gas return pipe which is welded in the rotating part, one end of the gas return pipe is communicated with the swivel joint assembly, and the other end extends to the bottom of the rotating part. The slag and powder crushed or ground by the drill bit can be guided out of the hole through the gas return pipe, thereby preventing the accumulation of slag and powder inside and causing repeated crushing.

[0014] Advantages:

[0015] By fixing the driving rotating assembly in the fixed part and the drilling mechanism in the rotating part, the mutual rotation of the two is ensured without the help of external equipment. In addition, the external high-speed airflow not only drives the drilling mechanism to drill, but also recycles the exhaust gas through the gas return assembly and carries the waste slag and powder generated by the drilling mechanism out of the whole, thereby ensuring that the drilling process will not be repeated.

[0016] The central swivel joint is arranged in the fixed part, the gas inlet pipe is fixed on the stator side of the central swivel joint, and the gas outlet pipe is fixed on the rotor, so that the pipes are prevented from winding during the drilling process. In addition, the central swivel joint can be tightly arranged together, so that the whole is more compact and beautiful. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 : is the overall structure schematic diagram of the present application;

[0018] Figure 2 : is Figure 1 Structure schematic diagram after removing the side drum and cover;

[0019] Figure 3 : is the overall structure schematic diagram of the present application; Figure 2 Structure schematic diagram from another perspective;

[0020] Figure 4 : is the cross-sectional structure schematic diagram of the present application on the drum;

[0021] Figure 5 : is the structure schematic diagram of the central swivel bearing of the present application.

[0022] Wherein: 10, fixed part; 20, swivel joint assembly; 30, rotating part; 40, central swivel bearing; 101, gas inlet; 102, gas outlet; 103, joint; 104, mounting table; 105, driving motor; 106, gear; 301, impactor; 302, drill bit; 303, drum; 304, gas return pipe; 401, stator; 402, rotor; 403, connection end; 404, connecting piece. DETAILED DESCRIPTION

[0023] In order to make the objects, technical solutions and advantages of the present application clearer, the following will clearly and completely describe the technical solutions in the present application with reference to the drawings in the present application. Obviously, the described embodiments are only a part of embodiments of the present application, and not all embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0024] In the description of the embodiments of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood in a broad sense, for example, can be fixedly connected, can also be detachably connected, or integrally connected, can be mechanically connected, can also be electrically connected, can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0025] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0026] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0027] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation on the present application.

[0028] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplicity, the elements and settings of certain examples are described in the following disclosure. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate a relationship between the various embodiments and / or settings being discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art can appreciate the applicability of other processes and / or the use of other materials.

[0029] Embodiment 1: The present application aims to provide a cluster impactor:

[0030] Composed of several parts including a fixed part 10, a driving rotating assembly, a rotary joint assembly 20 and a rotating part 30.

[0031] Specifically, the fixed part 10 includes a cover, a mounting table 104, which is attached to the bottom of the cover, and an air inlet 101 and an air outlet 102 are provided at the top of the cover, wherein the air inlet 101 is two groups, and the air outlet 102 is one, both are set away from the center of the cover, the air inlet 101 is connected to the external air compressor through the high-pressure pipe, the air outlet 102 is connected to the external air pipe, which is used for exhaust and slag, powder, etc., and is set at the center position of the cover outside, and a joint 103 is provided, which is used to connect external equipment.

[0032] Specifically, the driving rotating assembly includes a central rotary bearing 40 and a driving assembly, wherein the driving assembly is a driving motor 105 and a gear 106, further, the driving motor 105 is fixed on the mounting table 104, i.e. inside the fixed part 10, the connecting shaft of the gear 106 is rotatably fixed on the mounting table 104 through the bearing, the output shaft of the driving motor 105 is connected with the connecting shaft of the gear 106, and the gear 106 is engaged with the teeth of the rotary bearing, thus, when the driving motor 105 is started, it can drive the gear 106 to rotate, and in turn drive the rotary bearing to rotate.

[0033] Specifically, the rotary joint assembly 20 is the central rotary bearing 40, which includes a rotor 402 and a stator 401, the rotor 402 is rotatably connected to the stator 401, the mounting table 104 is provided with a mounting hole at the center, and the stator 401 is fixed on the mounting hole at the center of the mounting table 104, at this time the rotor 402 extends to the outside of the fixed part 10, the rotor 402 and the stator 401 are provided with a slag passage at the center, and the sidewalls of the two are provided with air inlet passages which are connected to each other, the air inlet end of the air inlet passage is provided on the side of the stator 401, and the air outlet end is provided on the connecting end 403 at the lower end of the rotor 402, the air inlet end is connected to the air inlet 101 through the air pipe.

[0034] Specifically, the rotating part 30 comprises a winding drum 303, a cover plate, a bottom plate and a drilling mechanism, wherein one end of the winding drum 303 is connected through the cover plate, one end is blocked through the bottom plate, the winding drum 303, the cover plate and the cover of the rotating part 30 form a sealed cavity, the rotating part 30 is connected at the bottom of the central rotary support 40 through the cover plate, the cover plate is provided with three impact holes and a back gas port, wherein the impact holes are used to provide the connection of the impactor 301 and the drill bit 302, the back gas port is connected with the back gas assembly, that is, the back gas pipe 304, the other end of the back gas pipe 304 is connected with the connecting end 403 of the rotor 402, and the back gas pipe 304 is located at the axis of the rotating part 30, so that in the back gas process, the back gas pipe 304 and the space drilled by the drill bit 302 form a relatively closed cavity, so that a certain guide gas flow is formed in the process of back gas, the slag and powder in the cavity can be guided out to the back gas pipe 304, and then flows out of the gas outlet 102 to the outside along the gas flow. In addition, it also comprises a connecting assembly, that is, the connecting plate 404, one end of the connecting plate 404 is fixed on the side wall of the connecting end 403, and the other end is fixed on the cover plate, so that when the winding drum 303 rotates, the rotor 402, the impactor 301 and the drill bit 302 connected with the gas outlet end of the rotor 402 can rotate synchronously, thereby preventing the internal pipeline from winding with each other during rotation.

[0035] Further, the area swept by the drill bit 302 when the winding drum 303 rotates one round is equal to the projection area of the rotating part 30, in addition, the diameters of the winding drum 303, the central rotary support 40 and the cover are equal or similar, and the winding drum 303, the central rotary support 40 and the cover can also play a guiding role during drilling, so as to reduce the deviation of the hole axis during drilling.

[0036] In the specific working implementation, the entire impactor 301 is connected to the external mechanical arm through the joint 103, and the external gas pipe is connected.

[0037] At this time, the connection cycle of the internal gas pipe is: the high-pressure gas is introduced into the gas inlet 101 from the outside, and then is transported to the side wall of the central rotary support 40 by the gas pipe, and is output to the impactor 301 and the drill bit 302 from the bottom of the rotor 402 in the central rotary support 40. The high-pressure gas promotes the impact of the impactor 301 on the drill bit 302, and at the same time, the drill bit 302 also blows out gas. Since the drill bit 302 is located outside the rotating part 30 during drilling, the space formed by the impact of the drill bit 302 during drilling will form a relatively closed area with the hole arm and the bottom of the winding drum 303. After the drill bit 302 sprays gas, the slag and powder flow into the back gas pipe 304. At this time, the amount of high-pressure gas flowing into the closed area is approximately equal to the amount of high-pressure gas flowing into the back gas pipe 304. The back gas pipe 304 passes the gas flow with slag and powder into the central rotary support 40, and then is transported to the gas outlet 102 by the gas pipe in the central rotary support 40 and is discharged.

[0038] In the drilling process: the driving motor 105 drives the gear 106 to rotate, the teeth on the gear 106 and the teeth on the central rotary support 40 are in meshing transmission, and the central rotary support 40 and the rotating part 30 are driven to rotate, in the rotating process, since the two ends of the connecting piece 404 are connected with the cover plate and the connecting end 403 respectively, the connecting end 403 and the rotor 402 are driven to rotate synchronously, and in the rotating process, since the air outlet end at the bottom of the connecting end 403 and the rotating center of the impactor 301 are located on the same axis, the two are relatively static in the rotating process, and the pipeline connecting the two will not appear winding and other phenomena.

[0039] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A cluster impactor comprising a fixed portion, a rotary joint assembly and a rotating portion, characterized in that: The fixed part and the rotating part are rotatably connected by driving a rotating assembly, an air inlet and an air outlet are provided on the top of the fixed part, one end of the swivel joint assembly is located in the fixed part, and the other end is located in the rotating part, a drilling mechanism is provided in the rotating part, and high-pressure gas enters the swivel joint assembly through the air inlet and enters the interior of the drilling mechanism and can be ejected from the head of the drilling mechanism, and an air return assembly is further provided in the rotating part, connecting the bottom of the rotating part and the swivel joint assembly, and the high-speed airflow and the slag and stone carried by it are returned to the swivel joint assembly through the air return assembly and discharged from the air outlet; The driving rotation assembly includes a slewing bearing and a driving assembly, a mounting platform is provided at the bottom of the fixed portion, the driving assembly is arranged on the mounting platform, the mounting platform is fixed to the top of the slewing bearing, an upper cover is provided on the top of the rotating portion, the rotating portion is detachably arranged on the bottom of the slewing bearing via the upper cover, and driving the driving assembly can drive the slewing bearing to rotate, thereby driving the rotating portion to rotate relative to the fixed portion; The rotary joint assembly includes a central rotary joint, which is fixed to the bottom of the fixed part. A connecting end is provided at the bottom of the central rotary joint, and the connecting end is located in the rotating part. It also includes several groups of connecting components, one end of the connecting component is fixed to the connecting end, and the other end is fixed to the rotating part. When the rotating part rotates, it can drive the connecting component to move, thereby driving the rotor to rotate.

2. The cluster impactor according to claim 1, characterized in that: The driving assembly includes a driving motor and a driving gear. The driving motor is fixed above the mounting platform, and the driving gear is arranged below the mounting platform. The driving motor can drive the driving gear to rotate, and then engage with the teeth of the slewing bearing, thereby driving the slewing bearing to rotate.

3. The cluster impactor according to claim 2, characterized in that: The driving components are divided into several groups and arranged in a circular array on the mounting platform.

4. The cluster impactor according to claim 1, characterized in that: There are no less than three groups of drilling mechanisms, and the area swept by the three groups of drilling mechanisms during one rotation is equal to the cross-sectional area of ​​the rotating part.

5. The cluster impactor according to claim 4, characterized in that: The drilling mechanism includes an impactor and a drill bit, wherein the impactor is fixed to the bottom of the rotating part, and the drill bit is located outside the rotating part. The drill bit passes through the bottom of the rotating part and is connected to the impactor.

6. The cluster impactor according to claim 1, characterized in that: The return air assembly includes a return air pipe, which is welded inside the rotating part, one end of which is connected to the rotary joint assembly, and the other end extends to the bottom of the rotating part.

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