Automatic soil cleaning device of long spiral drilling machine
By using a reciprocating threaded rod and piston plate system driven by a dual-axis motor, combined with flushing, scraping and air-drying technologies, the clogging problem of the automatic soil removal device of long spiral drilling rigs has been solved, improving the operating efficiency and reliability of the drilling rig.
Patent Information
- Application Number
- CN202520353198.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-03
AI Technical Summary
The existing automatic soil removal device for long spiral drilling rigs cannot promptly remove the residual soil scraped out by the scraper, which can easily cause blockages and affect the normal operation of the drilling rig.
The reciprocating threaded rod driven by a dual-axis motor drives the piston plate, which flushes and softens the residual soil on the outer surface of the auger rod through the water injection pipe. The soil is then scraped off by a scraper and dried through a one-way air valve. Finally, the soil is discharged through an inclined cleaning box.
This enabled timely cleaning of soil from the surface of the auger drill rod, improving the drilling rig's operational efficiency and reliability, and ensuring the stable operation of the equipment.
Smart Images

Figure CN223922997U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction equipment technology, specifically an automatic soil removal device for a long spiral drilling rig. Background Technology
[0002] An automatic soil removal device for long spiral drilling rigs is a component used in these rigs. Long spiral drilling rigs are primarily used for drilling cast-in-place piles in building foundation construction. During drilling, the drill bit carries away a large amount of residual soil. The automatic soil removal device is used to clean this residual soil adhering to the drill rod, drill bit, and other components, ensuring the drilling rig can operate efficiently and continuously. However, existing automatic soil removal devices for long spiral drilling rigs often have certain problems, such as:
[0003] The patent application CN202323600118.1, entitled "An Automatic Soil Removal Device for a Long Spiral Drilling Rig," includes a support rod. A spiral drilling body is located at the left end of the support rod. A fixing block is fixedly connected to the bottom of the left end of the support rod. A housing is detachably connected to the left end of the fixing block, and the right end of the housing is fixedly connected to...
[0004] The device has a fixed plate with grooves at both its upper and lower ends. A spring is installed inside each groove, and a sliding block is slidably connected to the inner wall of the groove. A sliding column is fixedly connected to the far side of each sliding block, and a rubber block is fixedly connected to the end of each sliding column away from the sliding block. This device cannot promptly remove residual soil scraped by the scraper, which easily causes blockage and affects the normal operation of the drilling rig, failing to meet daily needs. Therefore, an automatic soil removal device for long spiral drilling rigs is proposed to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide an automatic soil removal device for long spiral drilling rigs, so as to solve the problem mentioned in the background art that the existing automatic soil removal devices for long spiral drilling rigs cannot discharge the residual soil scraped by the scraper in a timely manner, which easily causes blockage.
[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a comprehensive control console, with a column fixedly connected to the upper right side of the console, and a drive assembly fixedly connected to the column; a spiral drill rod is fixedly connected to the output end of the drive assembly; a cleaning box is fixedly connected to the right end of the column, and the spiral drill rod penetrates the cleaning box; a support column is fixedly connected to the inner wall of the right side of the cleaning box via a screw assembly, and a placement cavity is provided in the upper end of the support column; a return spring is fixedly connected to the bottom surface of the placement cavity, and a limit plate is fixedly connected to the upper end of the return spring; a connecting column is fixedly connected to the upper end of the limit plate, and the upper end of the connecting column penetrates the upper end of the support column; a scraper is fixedly connected to the upper end of the connecting column, and the scraper is in contact with the outer surface of the spiral drill rod; the return spring, the limit plate, the connecting column, the scraper, and the placement cavity are all symmetrically arranged about the support column.
[0007] The above technical solution facilitates the automatic soil removal function of long spiral drilling rigs during drilling.
[0008] As a preferred embodiment of this utility model, a protective shell is fixedly connected to the inner wall of the left side of the cleaning box, and a dual-axis motor is fixedly connected to the inner wall of the left side of the protective shell; a reciprocating threaded rod is fixedly connected to the shaft end of the dual-axis motor.
[0009] The above technical solution facilitates the improvement of drilling rig operating efficiency and reliability.
[0010] As a preferred embodiment of this utility model, the tail end of the reciprocating threaded rod is connected to the bearing on the inner wall of the protective shell; a partition is fixedly connected to the inner wall of the protective shell, and the partition is symmetrically arranged about the dual-axis motor; the reciprocating threaded rod passes through the partition.
[0011] The above technical solution facilitates the stability of the overall internal structure.
[0012] As a preferred embodiment of this utility model, a piston plate is threadedly connected to the reciprocating threaded rod, and the outer end face of the piston plate and the inner end face of the protective shell are slidably connected; the piston plate is symmetrically arranged about the dual-axis motor.
[0013] The above technical solution facilitates the reciprocating motion of the piston plate.
[0014] As a preferred embodiment of this utility model, a nozzle is fixedly connected to the upper end of the right side face of the protective shell, and a one-way valve is fixedly connected to the inner tail end of the nozzle.
[0015] The above technical solution facilitates the cleaning and maintenance of the inside of the cleaning box.
[0016] As a preferred embodiment of this utility model, a one-way inflation valve is fixedly connected to the front end face of the cleaning box, and the one-way inflation valve penetrates the front end face of the protective shell; a water injection pipe is fixedly connected to the front end face of the cleaning box, and the water injection pipe penetrates the front end face of the protective shell; a water storage tank is fixedly connected to the tail end of the water injection pipe, and the lower end face of the water storage tank is fixedly connected to the upper end face of the integrated control console; a one-way valve is installed inside the water injection pipe.
[0017] The above technical solution facilitates the cleanliness and stable operation of the system.
[0018] As a preferred embodiment of this utility model, the one-way air valve is located at the upper end of the water injection pipe; the lower end of the cleaning box is inclined, and an internally threaded pipe is fixedly connected to the lower right end face of the cleaning box.
[0019] The above technical solution facilitates the rapid discharge of mud from the cleaning tank.
[0020] Compared with the prior art, the beneficial effects of this utility model are: the device can simultaneously wash and dry the outer surface of the auger drill rod through a single power source, and can promptly discharge the residual soil scraped off by the scraper. The overall structure is simple and stable and easy to implement.
[0021] 1. During the auger drill rod recovery process, the dual-axis motor is started. The dual-axis motor drives the piston plate to move through the reciprocating threaded rod. The periodic movement of the piston plate generates negative pressure, and water in the water storage tank is flushed onto the outer surface of the auger drill rod through the water injection pipe and the nozzle located at the lower end of the protective shell; thus softening the residual soil on the outer surface of the auger drill rod.
[0022] 2. Subsequently, the auger rod passes through the scraper, which scrapes off the residual soil on the surface of the auger rod. During this process, the return spring ensures that the scraper is in constant contact with the residual soil on the outer surface of the auger rod.
[0023] 3. At the same time, the piston plate moves periodically to generate negative pressure, and through the one-way air valve, the air outside the cleaning box is quickly dried on the outer surface of the auger rod through the nozzle located at the upper right end of the protective shell; and the corresponding garbage bin is connected through the internal threaded pipe at the lower right corner of the cleaning box, and the residual soil in the cleaning box slides into the garbage bin through the tilting setting at the bottom of the cleaning box. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0025] Figure 2 This is a schematic diagram of the main cross-sectional structure of the cleaning box of this utility model;
[0026] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0027] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B;
[0028] Figure 5 This is a schematic diagram of the connection structure between the reciprocating threaded rod and the piston plate of this utility model.
[0029] In the diagram: 1. Integrated control console; 2. Column; 3. Drive assembly; 4. Spiral drill rod; 5. Cleaning box; 6. Support column; 7. Return spring; 8. Limit plate; 9. Connecting column; 10. Scraper; 11. Protective shell; 12. Dual-axis motor; 13. Reciprocating threaded rod; 14. Partition plate; 15. Piston plate; 16. Nozzle; 17. One-way air valve; 18. Water injection pipe; 19. Water storage tank. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Please see Figures 1-5 The present invention provides an automatic soil removal device for a long spiral drilling rig, comprising a control console 1, a column 2 fixedly connected to the upper right side of the control console 1, and a drive assembly 3 fixedly connected to the column 2; a spiral drill rod 4 fixedly connected to the output end of the drive assembly 3; a cleaning box 5 fixedly connected to the right side of the column 2, with the spiral drill rod 4 penetrating through the cleaning box 5; a support column 6 fixedly connected to the inner wall of the right side of the cleaning box 5 via a screw assembly, with a placement cavity provided in the upper end of the support column 6; a return spring 7 fixedly connected to the bottom surface of the placement cavity, with a limit plate 8 fixedly connected to the upper end of the return spring 7; a connecting column 9 fixedly connected to the upper end of the limit plate 8, with the upper end of the connecting column 9 penetrating through the upper end of the support column 6; a scraper 10 fixedly connected to the upper end of the connecting column 9, with the scraper 10 and the outer surface of the spiral drill rod 4 in contact; the return spring 7, limit plate 8, connecting column 9, scraper 10, and placement cavity are all symmetrically arranged about the support column 6, facilitating the automatic soil removal function of the long spiral drilling rig during drilling;
[0032] A protective shell 11 is fixedly connected to the inner left side of the cleaning box 5, and a dual-axis motor 12 is fixedly connected to the inner left side of the protective shell 11; a reciprocating threaded rod 13 is fixedly connected to the shaft end of the dual-axis motor 12, which facilitates the improvement of the drilling rig's operating efficiency and reliability.
[0033] The tail end of the reciprocating threaded rod 13 is connected to the bearing on the inner wall of the protective shell 11; a partition 14 is fixedly connected to the inner wall of the protective shell 11, and the partition 14 is symmetrically arranged about the dual-axis motor 12; the reciprocating threaded rod 13 passes through the partition 14, which facilitates the stability of the overall internal structure.
[0034] A piston plate 15 is threadedly connected to the reciprocating threaded rod 13, and the outer end face of the piston plate 15 is slidably connected to the inner end face of the protective shell 11; the piston plate 15 is symmetrically arranged about the dual-axis motor 12, which facilitates the reciprocating motion of the piston plate 15.
[0035] A nozzle 16 is fixedly connected to the upper end of the right side face of the protective shell 11, and a one-way valve is fixedly connected to the inner end of the nozzle 16, which facilitates the cleaning and maintenance of the inside of the cleaning box 5.
[0036] A one-way air valve 17 is fixedly connected to the front face of the cleaning box 5, and the one-way air valve 17 penetrates the front face of the protective shell 11; a water injection pipe 18 is fixedly connected to the front face of the cleaning box 5, and the water injection pipe 18 penetrates the front face of the protective shell 11; a water storage tank 19 is fixedly connected to the tail end of the water injection pipe 18, and the lower end face of the water storage tank 19 is fixedly connected to the upper end face of the integrated control console 1; a one-way valve is installed inside the water injection pipe 18 to ensure the cleanliness and stable operation of the system;
[0037] One-way air valve 17 is located at the upper end of water injection pipe 18; the lower end of cleaning box 5 is inclined, and the lower right end face of cleaning box 5 is fixedly connected to an internal threaded pipe to facilitate the rapid discharge of mud in cleaning box 5.
[0038] Working principle: During the recovery process of the auger drill rod 4, the dual-axis motor 12 is started. The dual-axis motor 12 drives the piston plate 15 to move through the reciprocating threaded rod 13. The periodic movement of the piston plate 15 generates negative pressure, and water in the water storage tank 19 is flushed onto the outer surface of the auger drill rod 4 through the nozzle 16 located at the lower end of the protective shell 11 via the water injection pipe 18; thus softening the residual soil on the outer surface of the auger drill rod 4.
[0039] Subsequently, the auger rod 4 passes through the scraper 10, which scrapes off the residual soil on the surface of the auger rod 4. During this process, the return spring 7 keeps the scraper 10 in constant contact with the residual soil on the outer surface of the auger rod 4.
[0040] At the same time, the piston plate 15 moves periodically to generate negative pressure, and through the one-way air valve 17, the air outside the cleaning box 5 is quickly dried on the outer surface of the spiral drill rod 4 through the nozzle 16 located at the upper right end of the protective shell 11; and the corresponding garbage bin is connected through the internal threaded pipe at the lower right corner of the cleaning box 5. Through the inclined setting at the bottom of the cleaning box 5, the residual soil in the cleaning box 5 slides into the garbage bin.
[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A long auger drill rig automatic soil cleaning device comprising a comprehensive control console (1), characterized in that: The comprehensive console (1) right side upper end surface is fixedly connected with a stand (2), and the stand (2) is fixedly connected with a driving assembly (3); the driving assembly (3) output end is fixedly connected with a spiral drill rod (4); the stand (2) right end surface is fixedly connected with a cleaning box (5), and the spiral drill rod (4) penetrates the cleaning box (5); the cleaning box (5) right side inner wall surface is fixedly connected with a support column (6) through a screw assembly, and the support column (6) upper end surface is provided with a placing cavity; the placing cavity inner bottom surface is fixedly connected with a return spring (7), and the return spring (7) upper end surface is fixedly connected with a limiting plate (8); the limiting plate (8) upper end surface is fixedly connected with a connecting column (9), and the connecting column (9) upper end surface penetrates the support column (6) upper end surface; the connecting column (9) upper end surface is fixedly connected with a scraper (10), and the scraper (10) and the spiral drill rod (4) outer surface are attached; the return spring (7), the limiting plate (8), the connecting column (9), the scraper (10) and the placing cavity are symmetrically arranged about the support column (6).
2. An auger drill rig automatic soil cleaning device according to claim 1, characterised in that: The cleaning box (5) left side inner wall surface is fixedly connected with a protective shell (11), and the protective shell (11) left side inner wall surface is fixedly connected with a double-shaft motor (12); the double-shaft motor (12) shaft end is fixedly connected with a reciprocating threaded rod (13).
3. An auger drill rig automatic soil cleaning device according to claim 2, characterised in that: The reciprocating threaded rod (13) tail end and the protective shell (11) inner wall surface bearing are connected; the protective shell (11) inner wall surface is fixedly connected with a partition plate (14), and the partition plate (14) is symmetrically arranged about the double-shaft motor (12); the reciprocating threaded rod (13) penetrates the partition plate (14).
4. An auger drill rig automatic soil cleaning device according to claim 3, characterised in that: The reciprocating threaded rod (13) is threadedly connected with a piston plate (15), and the piston plate (15) outer end surface and the protective shell (11) inner end surface are slidingly connected; the piston plate (15) is symmetrically arranged about the double-shaft motor (12).
5. An auger drill rig automatic spoil removal device according to claim 4, wherein: The protective shell (11) right side end surface upper end is fixedly connected with a nozzle (16), and the nozzle (16) inner tail end is fixedly connected with a check valve.
6. An auger drill rig automatic spoil removal device according to claim 5 wherein: The cleaning box (5) front end surface is fixedly connected with a one-way inflation valve (17), and the one-way inflation valve (17) penetrates the protective shell (11) front end surface; the cleaning box (5) front end surface is fixedly connected with a water injection pipe (18), and the water injection pipe (18) penetrates the protective shell (11) front end surface; the water injection pipe (18) tail end is fixedly connected with a water storage tank (19), and the water storage tank (19) lower end surface is fixedly connected with the comprehensive console (1) upper end surface; the water injection pipe (18) is provided with a check valve.
7. An auger drill rig automatic spoil removal apparatus according to claim 6, wherein: The one-way inflation valve (17) is located on the water injection pipe (18) upper end; the cleaning box (5) lower end is obliquely arranged, and the cleaning box (5) right side lower end surface is fixedly connected with an internal threaded pipeline.
Citation Information
Patent Citations
Cleaning device for long spiral drilling machine
CN221838264U