Multifunctional composite drill bit

Abstract

The invention discloses a multifunctional composite drill bit, which belongs to the field of coal transportation and cleaning equipment, is used for frozen coal cleaning, and comprises a pipe body with a plurality of groups of pipe body through holes, an inner adjusting block is arranged in the pipe body, and the inner adjusting block is connected with an inner shaft body; symmetrically-arranged communicating grooves are machined in the inner adjusting block, and the communicating grooves correspondingly communicate with one set of pipe body through holes. An opening in the top end of the tube body is blocked by the tube body connecting seat; the pipe body connecting seat is communicated with a high-pressure water inlet pipe, a high-pressure gas inlet pipe and a high-pressure steam inlet pipe, and one of the high-pressure water inlet pipe, the high-pressure gas inlet pipe and the high-pressure steam inlet pipe is selected to be communicated with the communicating groove; a pipe body driving wheel for driving the pipe body driven wheel to rotate is further arranged on the pipe body connecting seat, and the pipe body driving wheel is driven by a pipe body driving motor. According to the frozen coal unloading device, the frozen coal can be separated from the compartment where the frozen coal is located and loosened through various operation means, unloading operation of the frozen coal is facilitated, the unloading efficiency is improved, and the number of needed workers and the labor intensity are reduced.

Description

Technical Field

[0001] The present application belongs to the field of coal transportation and cleaning equipment, and more specifically, it relates to a multifunctional composite composite drill bit for cutting frozen coal. Background Art

[0002] As one of the main traditional energy sources in the current social economy, coal plays an important role in all walks of life. From the mining of coal in the mines to its transportation to the use scene, transportation equipment is needed. Generally, coal is transported by land and water. During land transportation, long-distance transportation is mostly carried out by train.

[0003] In the process of train transportation, in order to prevent the internal temperature of the coal in the carriage from rising due to transportation squeezing and mutual friction between the coal blocks, cooling water is usually sprayed during the train transportation. In winter, due to the low external temperature, the sprayed water will form a frozen coal state with the coal. According to the degree of freezing, it is divided into different states such as full freezing or sandwich freezing. These frozen coal states cause different degrees of trouble to the coal unloading operation in the train carriage. The traditional unloading structure is not easy to clean the coal in the frozen coal state well, the operation efficiency is low and manual participation is required for cleaning. However, manual cleaning has natural disadvantages, that is, it requires more operators and the labor intensity of the operation is high. Summary of the invention

[0004] The purpose of the present application is to provide a multifunctional composite drill bit, which can achieve the separation of frozen coal from the carriage and the loosening of itself through a variety of operating methods, thereby facilitating the unloading of frozen coal, improving the unloading efficiency, and reducing the number of manpower required and the labor intensity.

[0005] To achieve the above technical objectives, this application is implemented through the following technical solutions: A multifunctional composite drill described in the present application comprises a tube body, the tube body is a hollow tube body, and a plurality of groups of tube body through holes are evenly distributed in the circumference of the tube body, and each group of tube body through holes is symmetrically arranged in the circumference of the tube body; an inner adjustment block is arranged inside the tube body, and the circumferential outer wall of the inner adjustment block is in contact with the circumferential inner wall of the tube body; the inner adjustment block has an inner shaft body integrally arranged therewith, and the inner shaft body is coaxially arranged with the tube body; symmetrically arranged communicating grooves are processed on the inner adjustment block, and the communicating grooves are correspondingly connected with one group of tube body through holes; the top opening position of the tube body is blocked by a tube body connecting seat, and the tube body rotates around its own central axis relative to the tube body connecting seat under the drive of the tube body driven wheel; the tube body connecting seat is connected with a high-pressure water inlet pipe, a high-pressure gas inlet pipe, and a high-pressure steam inlet pipe, and one of the high-pressure water inlet pipe, the high-pressure gas inlet pipe, and the high-pressure steam inlet pipe is connected to the communicating groove; the tube body connecting seat is also provided with a tube body driving wheel that drives the tube body driven wheel to rotate, and the tube body driving wheel is driven by the tube body driving motor.

[0006] As one of the preferred technical solutions of the present application, the circumferential outer wall of the tube body is provided with outer tube body spirals in sequence from bottom to top.

[0007] As one of the preferred technical solutions of the present application, the outer diameter of the spiral outside the tube body gradually increases from bottom to top.

[0008] As one of the preferred technical solutions of the present application, the tube body driven wheel is located on the tube body above the outer spiral of the tube body, the tube body driving motor is located on the tube body motor seat, and the tube body motor seat is symmetrically arranged on the tube body connecting seat.

[0009] As one of the preferred technical solutions of the present application, the inner shaft body is driven by an inner shaft adjustment motor, the inner shaft adjustment motor is located on the inner shaft motor seat, and the inner shaft motor seat is connected to the top surface of the tube body connecting seat through a motor seat support rod.

[0010] As one of the preferred technical solutions of the present application, a sealing bearing and a sealing ring body are provided at the connection position between the tube body connecting seat and the tube body.

[0011] As one of the preferred technical solutions of the present application, the bottom end of the tube body is provided with a tube conical end which is integral with it or separately provided but connected as a whole, and the tube conical end has a conical groove connected to the internal space of the tube body; the bottom end of the inner shaft body is provided with an inner cone which is integral with the inner adjustment block or separately provided but connected as a whole, and the circumferential outer side wall of the inner cone is in contact with the inner side wall of the conical groove.

[0012] As one of the preferred technical solutions of the present application, the tube body connecting seat is also connected to a connecting seat, and the connecting seat is symmetrically arranged on the tube body connecting seat.

[0013] Compared with the prior art solutions, this application has the following beneficial effects: The present application sets the pipe body as a hollow structure, and sets an inner shaft body, an inner adjustment block, and a connecting groove for support and gas path conduction inside the hollow structure, which can respectively conduct the high-pressure water inlet pipe, the high-pressure gas inlet pipe, and the high-pressure steam inlet pipe, so as to realize the cleaning operation of the frozen coal according to the actual situation, improve the efficiency and quality of the frozen coal cleaning, and reduce the required number of manpower and labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This application is a three-dimensional Figure 1 .

[0015] Figure 2 This application is a three-dimensional Figure 2 .

[0016] Figure 3 This is the main view of this application.

[0017] Figure 4 yes Figure 3 Cross-sectional view at the position and direction shown by AA.

[0018] Figure 5 It is a three-dimensional image after removing the tube body and the spiral outside the tube body.

[0019] Figure 6 It is a three-dimensional diagram of the tube body and the spiral outside the tube body.

[0020] 1. Inner shaft adjustment motor; 2. Inner shaft motor seat; 3. High-pressure water inlet pipe; 4. High-pressure gas inlet pipe; 5. High-pressure steam inlet pipe; 6. Connecting seat; 7. Pipe body connecting seat; 8. Pipe body driving motor; 9. Pipe body motor seat; 10. Pipe body driving wheel; 11. Pipe body driven wheel; 12. Pipe body; 13. Pipe body through hole; 14. Pipe body outer spiral; 15. Pipe body cone end; 16. Motor seat support rod; 17. Inner adjustment block; 18. Inner cone; 19. Inner shaft body; 20. Connecting groove. DETAILED DESCRIPTION

[0021] The technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Example 1

[0023] like Figures 1 to 6 A multifunctional composite drill bit includes a tube body 12, which is a hollow cylindrical structure. The bottom end of the tube body 12 is blocked and the top end is open. The top opening of the tube body 12 is blocked by a tube body connecting seat 7. A sealing bearing and a sealing ring body are provided at the connection position between the tube body connecting seat 7 and the tube body 12; the tube body 12 can rotate relative to the tube body connecting seat 7 around its own central axis at the connection position between it and the tube body connecting seat 7.

[0024] The tube body 12 is provided with a tube body driven wheel 11 at a position close to the tube body connecting seat 7. The tube body driven wheel 11 is connected to the tube body driving wheel 10 through a transmission structure. The tube body driving wheel 10 is located at the output shaft end of the tube body driving motor 8 and is driven by the tube body driving motor 8.

[0025] The tube body 12 is also provided with a plurality of groups of tube body through holes 13 in the length direction thereof, and each group of tube body through holes 13 is symmetrically distributed in the circumferential direction of the tube body 12. The tube body through holes 13 are communicated with the internal cavity of the tube body 12.

[0026] The outer surface of the tube body 12 is provided with an outer tube spiral 14 . As the outer tube spiral 14 extends from the bottom end of the tube body 12 to the top end of the tube body 12 , the outer diameter of the spiral gradually increases.

[0027] An inner shaft 19 is coaxially arranged inside the tube body 12, and the inner shaft 19 is integrally connected with an inner adjustment block 17 at a position inside the tube body 12. The inner adjustment block 17 is two symmetrically arranged fan-shaped blocks, and a connecting groove 20 is formed between adjacent fan-shaped blocks. The length of the inner adjustment block 17 is the same as that of the tube body 12, and the connecting groove 20 can be respectively connected with each group of tube body through holes 13 in the process of following the rotation of the inner shaft 19.

[0028] The inner shaft body 19 passes through the tube body connecting seat 7 and extends from the top of the tube body connecting seat 7. A sealing structure and a sealing bearing are provided at the connection position between the inner shaft body 19 and the tube body connecting seat 7 to ensure relative rotation and connection tightness between the two.

[0029] The inner shaft body 19 is driven by the inner shaft adjustment motor 1, which is a servo motor. Under the control of the controller, the inner shaft adjustment motor 1 can rotate at a fixed angle to drive the inner adjustment block 17 integrally arranged therewith to rotate a certain angle through the inner shaft body 19 and communicate with each group of corresponding tube body through holes 13 respectively.

[0030] The pipe body connecting seat 7 is also connected with a high-pressure water inlet pipe 3, a high-pressure gas inlet pipe 4, and a high-pressure steam inlet pipe 5. The high-pressure water inlet pipe 3, the high-pressure gas inlet pipe 4, and the high-pressure steam inlet pipe 5 can be connected with the internal space of the pipe body 12 through the through holes on the pipe body connecting seat 7, and then the medium to be transported is sent into the interior of the pipe body 12, and is respectively sent into each corresponding group of pipe body through holes 13 through the connecting grooves 20, and is sent out of the pipe body 12 through the pipe body through holes 13.

[0031] Example 2

[0032] like Figures 1 to 6 As shown, a multifunctional composite drill, wherein the pipe body connection seat 7 is connected to the inner shaft motor seat 2 at the top through a plurality of motor seat support rods 16, the inner shaft adjustment motor 1 is fixedly mounted on the inner shaft motor seat 2, and the high-pressure water inlet pipe 3, high-pressure gas inlet pipe 4, and high-pressure steam inlet pipe 5 are respectively oriented to different directions of the pipe body connection seat 7. The pipe body connection seat 7 is respectively provided with connection seats 6 on both sides of its top position, and is connected to the corresponding frame through the connection seats 6 and fasteners.

[0033] The tube body connecting seat 7 is symmetrically provided with 9 tube body driving motors 8 on both sides near the tube body driven wheel 11, and the tube body motor seats 9 are respectively connected to the tube body driving motors 8. The output shaft of the tube body driving motor 8 passes through the tube body motor seats 9 and is connected to the corresponding tube body driving wheel 10.

[0034] The structure and connection relationship of the remaining parts are the same as those in the aforementioned embodiment, and will not be described again here to avoid cumbersome writing.

[0035] Example 3

[0036] like Figures 1 to 6 As shown, a multifunctional composite drill bit, wherein the bottom end of the tube body 12 is integrally or separately connected with a tube body tapered end 15, the tube body tapered end 15 is a tapered cylinder, a tapered groove connected to the inside of the tube body 12 is formed inside the tube body tapered end 15, an inner cone 18 is accommodated inside the tapered groove, the inner cone 18 is integrated with the inner adjustment block 17, and forms a blockage for the bottom end of the communicating groove 20.

[0037] The structure and connection relationship of the remaining parts are the same as those in the aforementioned embodiment, and will not be described again here to avoid cumbersome writing.

[0038] Based on the above embodiments, the technical features and working methods recorded in this application are further explained in conjunction with the accompanying drawings to help technicians in this field fully understand the technical solutions recorded in this application and be able to reproduce them.

[0039] In the present application, the tube body 12 is a hollow cylinder, and the bottom end of the tube body 12 can be blocked by the tube body cone end 15. The tube body cone end 15 can form a more pointed part at the bottom end of the tube body 12, so that the tube body 12 can move downward with the bracket or frame connected to the connecting seat 6, so as to drill into the frozen coal.

[0040] In the present application, in order to cooperate with the above-mentioned drilling, an outer tube spiral 14 is also integrally provided on the circumferential outer surface of the tube body 12, and the outer tube spiral 14 is a spiral blade. The outer diameter of the outer tube spiral 14 gradually increases from the outer tube spiral 14 along the bottom end of the tube body 12 to the top end of the tube body 12, so as to facilitate the drilling of the tube body cone end 15 and the subsequent cutting of the remaining coal at the location.

[0041] In the present application, a plurality of groups of tube through holes 13 are provided in the length direction of the tube body 12, and the tube through holes 13 can respectively deliver the high-pressure water medium, high-pressure gas medium, and high-pressure steam medium delivered into the tube body 12, and realize the cutting of frozen coal at the drilled parts of the outer spiral 14 of the tube body and the conical end 15 of the tube body.

[0042] The tube body through hole 13 in the present application may be a tapered hole, and its diameter gradually increases in the process of extending from the outer wall of the tube body 12 to the inner wall of the tube body 12. The advantage of such a setting is that the influence of frozen coal and the like on the tube body through hole 13 is avoided, and the speed of the above-mentioned medium flowing out of the tube body through hole 13 can be increased to a certain extent, thereby increasing its treatment effect on frozen coal.

[0043] In the present application, in order to realize the separate delivery of high-pressure water medium, high-pressure gas medium and high-pressure steam medium as described in the above paragraph, two coordinated measures are adopted. The first is to respectively set solenoid valves on the high-pressure water inlet pipe 3, high-pressure gas inlet pipe 4 and high-pressure steam inlet pipe 5 of the above medium, and the controller sends an opening or closing signal to the corresponding solenoid valve through an electrical signal, so as to realize the delivery of the corresponding medium according to the requirements of frozen coal processing. The second is to realize it through the inner shaft adjustment motor 1. Specifically, in the present application, the inner shaft adjustment motor 1 can drive the inner adjustment block 17 to rotate through the inner shaft body 19 to which it is connected, and then respectively connect the connecting groove 20 formed on the inner adjustment block 17 with each corresponding group of tube body through holes 13, and then realize the delivery of the medium through the tube body through holes 13.

[0044] In the above paragraph, since the tube body 12 rotates following the tube body driven wheel 11, the connecting groove 20 only realizes the sequential connection between different medium conveying pipelines on the tube body connecting seat 7 and each group of tube body through holes 13, but the conveying direction of the medium is fixed or relatively unchanged relative to the tube body 12.

[0045] In the present application, the inner shaft body 19 and the inner adjustment block 17 can form a support inside the tube body 12, that is, the outer wall of the inner adjustment block 17 forms a sliding contact with the inner wall of the tube body 12. This form can achieve the sealing between adjacent connecting grooves 20 in the tube body 12 to a certain extent, and at the same time can support the tube body 12, thereby further ensuring the stability of the strength of the tube body 12 itself, and avoiding the influence on the structure of the tube body 12 itself during the processing of the residual coal.

[0046] Due to the characteristics of frozen coal itself, it includes mutually squeezed coal blocks and frozen water, which form a mixed state that is difficult to handle conveniently. Therefore, in the process of handling frozen coal, it is first necessary to cut the frozen coal into blocks. Block cutting requires the use of a structure as described in the tube body 12. The tube body 12 realizes its own rotation through the outer tube body spiral 14 set on its outside, driven by the tube body drive motor 8, and then drills to the appropriate position of the frozen coal, and then transports high-pressure steam medium into the tube body 12 through the high-pressure steam inlet pipe 5 at the appropriate position, and cuts the above-mentioned ice block and each block through the high-pressure steam medium. Since high-pressure steam has the characteristics of high speed and high temperature, it can well achieve an ideal cutting effect. At this time, the inner shaft adjustment motor 1 can drive the inner adjustment block 17 through the inner shaft body 19 to make the connecting groove 20 correspond to the position of the high-pressure steam inlet pipe 5.

[0047] In the present application, the cutting medium to be used is determined by the state of the frozen coal (e.g., fully frozen, half frozen), and the electromagnetic valves corresponding to the high-pressure water inlet pipe 3, the high-pressure gas inlet pipe 4, and the high-pressure steam inlet pipe 5 are opened respectively under the action of the controller, and the inner shaft adjustment motor 1 is made to correspond to the outlets corresponding to the high-pressure water inlet pipe 3, the high-pressure gas inlet pipe 4, and the high-pressure steam inlet pipe 5 respectively, and then a single high-pressure water medium, a high-pressure gas medium, or a high-pressure steam medium can be selected to cut the frozen coal, or a combination of media can be selected, such as a high-pressure steam medium and two or more of the high-pressure water medium and the high-pressure gas medium, to achieve the cutting of the frozen coal. However, the cutting of the above-mentioned multiple media needs to be carried out according to the actual cutting requirements, for example, the frozen coal is cut by the high-pressure steam medium first, and then the frozen coal is cut by the high-pressure water medium. After the high-pressure steam medium is used to cut the frozen coal, the controller needs to close the electromagnetic valve on the high-pressure steam inlet pipe 5, and then open the electromagnetic valve on the high-pressure water inlet pipe 3. At the same time, the inner shaft adjustment motor 1 drives the inner shaft body 19 so that the connecting groove 20 on the inner adjustment block 17 is aligned with the outlet of the high-pressure steam inlet pipe 5 and then turned to align with the outlet of the high-pressure water inlet pipe 3.

[0048] Finally, although the present application provides the above-mentioned embodiments, the above-mentioned embodiments are only preferred embodiments of the present application. The present application does not limit the technical personnel in this application to re-limit and combine the technical solutions of the present application on the premise of the technical ideas described in the present application, but the above-mentioned limited combination should be reasonably understood as the protection scope of the present application.

Claims

1. A multifunctional composite drill bit, comprising a tube body (12), characterized in that: The tube body (12) is a hollow tube body, and a plurality of groups of tube body through holes (13) are evenly distributed in the circumferential direction of the tube body (12), and each group of tube body through holes (13) is symmetrically arranged in the circumferential direction of the tube body (12); an inner adjustment block (17) is arranged inside the tube body (12), and the circumferential outer wall of the inner adjustment block (17) is in contact with the circumferential inner wall of the tube body (12); the inner adjustment block (17) has an inner shaft body (19) integrally arranged therewith, and the inner shaft body (19) is coaxially arranged with the tube body (12); the inner adjustment block (17) is machined with symmetrically arranged communication grooves (20), and the communication grooves (20) are correspondingly communicated with one group of the tube body through holes (13); The top opening of the tube body (12) is blocked by the tube body connecting seat (7), and the tube body (12) rotates around its own central axis relative to the tube body connecting seat (7) under the drive of the tube body driven wheel (11); the tube body connecting seat (7) is connected to a high-pressure water inlet pipe (3), a high-pressure gas inlet pipe (4), and a high-pressure steam inlet pipe (5), and one of the high-pressure water inlet pipe (3), the high-pressure gas inlet pipe (4), and the high-pressure steam inlet pipe (5) is connected to the connecting groove (20); the tube body connecting seat (7) is also provided with a tube body driving wheel (10) for driving the tube body driven wheel (11) to rotate, and the tube body driving wheel (10) is driven by a tube body driving motor (8).

2. A multifunctional composite drill bit according to claim 1, characterized in that: The circumferential outer wall of the tube body (12) is provided with outer tube body spirals (14) in sequence from bottom to top.

3. A multifunctional composite drill bit according to claim 2, characterized in that: The outer diameter of the spiral (14) outside the tube body gradually increases from bottom to top.

4. The multifunctional composite drill bit according to claim 2, characterized in that: The tube body driven wheel (11) is located on the tube body (12) at a position above the outer spiral (14) of the tube body, and the tube body driving motor (8) is located on the tube body motor seat (9). The tube body motor seat (9) is symmetrically arranged on the tube body connecting seat (7).

5. The multifunctional composite drill bit according to claim 4, characterized in that: The inner shaft body (19) is driven by an inner shaft adjustment motor (1), the inner shaft adjustment motor (1) is located on an inner shaft motor seat (2), and the inner shaft motor seat (2) is connected to the top surface of the tube body connection seat (7) via a motor seat support rod (16).

6. The multifunctional composite drill bit according to claim 5, characterized in that: A sealing bearing and a sealing ring body are provided at the connection position between the tube body connecting seat (7) and the tube body (12).

7. A multifunctional composite drill according to any one of claims 1 to 6, characterized in that: The bottom end of the tube body (12) is provided with a tube body conical end (15) which is integral with it or separately provided but connected as a whole, and the tube body conical end (15) has a conical groove communicating with the internal space of the tube body (12); the bottom end of the inner shaft body (19) is provided with an inner cone (18) which is integral with it or separately provided but connected as a whole with the inner adjustment block (17), and the circumferential outer side wall of the inner cone (18) contacts the inner side wall of the conical groove.

8. A multifunctional composite drill according to any one of claims 1 to 6, characterized in that: The tube body connecting seat (7) is also connected to a connecting seat (6), and the connecting seat (6) is symmetrically arranged on the tube body connecting seat (7).

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