A rapid drilling device for hydrogeological exploration

Abstract

The utility model relates to geological exploration sampling equipment technical field, concretely to a kind of for hydrogeological exploration's fast drilling device, it include: frame, guide frame, lifting frame, drive structure and the drill bit assembly connected with drive structure;Feed structure, feed structure includes at least two lead screws and the operating part of driving lead screw rotation, two lead screws are connected by synchronous transmission structure between it.The utility model, through the symmetrically arranged double lead screw feed structure, with synchronous transmission structure, fundamentally overcome the rigidity of traditional middle single lead screw, easy to deviate and twist and bend problem, improve drilling precision and equipment durability.The layout naturally gives out the middle space, ensures the independence and maintenance convenience of belt transmission structure.And side place ground silk screw makes operating part unnecessary complex transmission structure, naturally located frame side, while ensuring the operation feeling, improves operation convenience and security.

Description

Technical Field

[0001] This utility model relates to the technical field of geological exploration sampling equipment, specifically a rapid drilling device for hydrogeological exploration. Background Technology

[0002] In fields such as field hydrogeological exploration, environmental surveys, and engineering geological investigations, it is often necessary to conduct rapid shallow sampling and drilling operations (usually less than 30 meters deep) in locations with inconvenient transportation. Such operations place extremely high demands on the portability, rapid deployment capability, environmental adaptability, and operational safety of equipment.

[0003] Currently, mainstream small portable drilling devices on the market, such as small engineering coring machines and soil samplers, generally adopt a centrally located lead screw and double guide rod structure in their feed mechanism. Furthermore, to prevent damage to the power source due to drill bit jamming, their power source often uses a belt pulley drive between the drill rod spindle and the drill string. To avoid interference, the lead screw usually passes through the center of the drive belt, and to facilitate maintenance and replacement of the belt drive structure, the lower end of the lead screw is usually open.

[0004] This open-type lead screw structure lacks rigidity and is prone to bending under vibration and long-term deflection torque. Furthermore, due to the centrally located lead screw, the handwheel is situated in the center of the frame, resulting in poor operational safety. Some solutions employ bevel gears or other transmission structures, placing the handwheel on one side; however, this results in excessive transmission structures, significant rotational play, and limited direct feed feedback. Moreover, gears and other structures are easily damaged in field conditions. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a rapid drilling device for hydrogeological exploration.

[0006] The technical solution of this utility model is: A rapid drilling device for hydrogeological exploration, comprising: A frame, a guide frame mounted on the frame, a lifting frame slidably mounted on the guide frame, a drive structure and a drill bit assembly connected to the drive structure on the lifting frame; The feeding structure includes at least two lead screws and an operating part for driving the lead screws to rotate. The two lead screws are rotatably mounted on the guide frame and symmetrically arranged on both sides of the driving structure. The lead screws are threadedly connected to the lifting frame, and the two lead screws are connected by a synchronous transmission structure.

[0007] Preferably, the guide frame includes at least two guide rods and a top beam fixed to the top of the two guide rods, and the lifting frame is slidably connected to the guide rods.

[0008] Preferably, the drive structure includes a power source and a main shaft, the power source and the main shaft are located on the front and rear sides of the lifting frame respectively, and the output shaft of the power source and the main shaft are connected by a belt drive structure.

[0009] Preferably, the bottom of the lead screw passes through the lifting frame and is rotatably connected to the machine frame via a bearing seat.

[0010] Preferably, the operating part is a handwheel, which is detachably connected to one of the lead screws.

[0011] Preferably, the synchronous transmission structure includes a sprocket fixedly connected to the lead screw, and the two sprockets are connected by a chain.

[0012] Preferably, the synchronous transmission structure is positioned above the lifting stroke of the lifting frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention, through a symmetrically arranged dual-screw feed structure combined with a synchronous transmission structure, fundamentally overcomes the problems of insufficient rigidity, easy wear, and torsional bending inherent in traditional centrally located single-screw systems, thereby improving drilling accuracy and equipment durability. This layout naturally frees up central space, ensuring the independence and ease of maintenance of the belt drive structure. Furthermore, the side-mounted screws eliminate the need for a complex transmission structure, allowing the operating unit to be naturally located on the side of the frame, ensuring good handling while improving operational convenience and safety. Attached Figure Description

[0014] Figure 1 This is a first schematic diagram of the overall structure of this utility model; Figure 2 This is a second schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the synchronous transmission structure in this utility model; Figure 4 This is a schematic diagram of the driving structure in this utility model.

[0015] The meanings of the labels in the diagram are as follows: 1. Frame; 2. Guide rod; 3. Top beam; 4. Diagonal tie rod; 5. Lifting frame; 6. Lead screw; 7. Bearing seat; 8. Handwheel; 9. Sprocket; 10. Chain; 11. Mounting frame; 12. Drilling frame; 13. Power source; 14. Spindle; 15. Belt drive structure; 16. Mudguard; 17. Drill bit assembly. Detailed Implementation

[0016] 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.

[0017] Example 1: Please see Figure 1-4 The present invention will describe the above technical solution in detail through the following embodiments: A rapid drilling device for hydrogeological exploration, comprising: The frame 1 has a guide frame mounted on it. A lifting frame 5 is slidably mounted on the guide frame. The lifting frame 5 has a drive structure and a drill bit assembly 17 connected to the drive structure.

[0018] The guide frame includes at least two guide rods 2 and a top beam 3 fixed to the top of the two guide rods 2. The lifting frame 5 is slidably connected to the guide rods 2.

[0019] The bottom end of the guide rod 2 is fixedly connected to the frame 1 via a flange and bolts.

[0020] The top beam 3 is fixedly connected to the rear of the frame 1 at both ends by diagonal tie rods 4 to enhance the strength of the guide rod 2.

[0021] The space on the top surface of the frame 1 and behind the guide rod 2 can be used to place counterweights to enhance the stability of the device.

[0022] The frame 1 can be equipped with rollers for moving the device, or it can be without rollers and moved by a vehicle.

[0023] In this embodiment, no rollers are installed under the frame 1 to ensure stability during placement.

[0024] The drive structure includes a power source 13 and a main shaft 14. The power source 13 and the main shaft 14 are located on the front and rear sides of the lifting frame 5, respectively. The output shaft of the power source 13 and the main shaft 14 are connected by a belt drive structure 15.

[0025] The drilling frame 12 and the mounting frame 11 are fixedly installed on the front and rear sides of the lifting frame 5, respectively. The power source 13 is fixedly installed on the top surface of the mounting frame 11 by bolts. The main shaft 14 is rotatably installed on the drilling frame 12 by bearings and is set vertically.

[0026] The power source 13 can be an electric motor or an internal combustion engine.

[0027] In this embodiment, the power source 13 is preferably a diesel engine, so that no mains power supply is required when working in the field.

[0028] The bottom surfaces of the drilling frame 12 and the mounting frame 11 are fixed with mudguards 16 by screws. The mudguards 16 cover the belt drive structure 15 to prevent mud and sand from contaminating the belt drive structure 15 during drilling.

[0029] The spindle 14 passes through the belt drive structure 15. The drill bit assembly 17 is threadedly connected to the spindle 14.

[0030] The drill bit assembly 17 can be a known combination of drill bit and drill pipe.

[0031] The feeding structure includes at least two lead screws 6 and an operating part that drives the lead screws 6 to rotate. The two lead screws 6 are rotatably mounted on the guide frame and symmetrically arranged on both sides of the driving structure. The lead screws 6 are threadedly connected to the lifting frame 5, and the two lead screws 6 are connected by a synchronous transmission structure.

[0032] The bottom of the lead screw 6 passes through the lifting frame 5 and is rotatably connected to the frame 1 via the bearing seat 7.

[0033] The bottom end of the lead screw 6 is fixed, which can improve the rigidity of the lead screw 6 and prevent uneven wear or bending. The operating part is a handwheel 8, which is detachably connected to one of the lead screws 6.

[0034] In this embodiment, there are two handwheels 8, which are located at the top of the two lead screws 6 respectively, and the lead screws 6 and the handwheels 8 are connected by a key.

[0035] The synchronous transmission structure includes a sprocket 9 fixedly connected to the lead screw 6, and the two sprockets 9 are connected by a chain 10.

[0036] The sprocket 9 and chain 10 work together to achieve synchronous transmission between the two lead screws 6.

[0037] The transmission structure of sprocket 9 and chain 10 does not need to worry about mud and sand contamination, and chain 10 has low requirements for tension, making maintenance relatively convenient.

[0038] The tension of chain 10 can be achieved by disassembling chain links.

[0039] The synchronous transmission structure is located above the lifting stroke of the lifting frame 5.

[0040] In this embodiment, the synchronous transmission structure is located above the top beam 3, which facilitates maintenance and disassembly and avoids interference with the drive structure.

[0041] Working principle: Power source 13 is started, and power is transmitted to spindle 14 through belt drive structure 15, driving drill bit assembly 17 to rotate. The operator turns handwheel 8, and driving force is transmitted synchronously and at the same speed to two lead screws 6 through synchronous transmission structure composed of sprocket 9 and chain 10, causing them to rotate synchronously.

[0042] The rotating lead screw 6, through its threaded engagement with the lifting frame 5, converts the rotational motion into precise linear motion of the lifting frame 5 and the entire drive structure and drill bit assembly 17 mounted on it. Turning the handwheel clockwise feeds the drill bit downwards; turning it counterclockwise raises the drill bit.

[0043] Because the two lead screws are symmetrically arranged and both ends are firmly supported, they share the drilling pressure, forming a stable "portal" frame structure. This structure completely eliminates the bending deformation of a single lead screw and effectively resists the off-center load moment caused by the shift of the center of gravity or uneven formation, thus fundamentally solving the problems of insufficient rigidity, polarization, and abnormal wear of the lead screw in traditional structures.

[0044] With the lead screw 6 placed to the side, the central area of ​​the equipment is completely cleared, forming an open belt drive space from the power source 13 to the main shaft 14, making the inspection and replacement of the belt drive structure 15 extremely convenient.

[0045] Handwheel 8 is located on the side of the equipment, placing the operator in a safe position. The dual-screw synchronous drive ensures balanced feed force, a direct and heavy feel with no backlash, making it easy to judge formation changes by feel, and also enabling two-person collaborative operation when greater thrust is required.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rapid drilling device for hydrogeological exploration, characterized in that, include: A frame (1) and a guide frame mounted on the frame (1). A lifting frame (5) is slidably mounted on the guide frame. A drive structure and a drill bit assembly (17) connected to the drive structure are mounted on the lifting frame (5). The feeding structure includes at least two lead screws (6) and an operating part for driving the lead screws (6) to rotate. The two lead screws (6) are rotatably mounted on the guide frame and symmetrically arranged on both sides of the driving structure. The lead screws (6) are threadedly connected to the lifting frame (5). The two lead screws (6) are connected to each other through a synchronous transmission structure.

2. The rapid drilling device for hydrogeological exploration as described in claim 1, characterized in that: The guide frame includes at least two guide rods (2) and a top beam (3) fixed to the top of the two guide rods (2), and the lifting frame (5) is slidably connected to the guide rods (2).

3. The rapid drilling device for hydrogeological exploration as described in claim 1, characterized in that: The drive structure includes a power source (13) and a main shaft (14). The power source (13) and the main shaft (14) are located on the front and rear sides of the lifting frame (5), respectively. The output shaft of the power source (13) and the main shaft (14) are connected by a belt drive structure (15).

4. The rapid drilling device for hydrogeological exploration as described in claim 1, characterized in that: The bottom of the lead screw (6) passes through the lifting frame (5) and is rotatably connected to the frame (1) through the bearing seat (7).

5. A rapid drilling device for hydrogeological exploration as described in claim 1, characterized in that: The operating part is a handwheel (8), which is detachably connected to one of the lead screws (6).

6. A rapid drilling device for hydrogeological exploration as described in claim 1, characterized in that: The synchronous transmission structure includes a sprocket (9) fixedly connected to the lead screw (6), and the two sprockets (9) are connected by a chain (10).

7. A rapid drilling device for hydrogeological exploration as described in claim 6, characterized in that: The synchronous transmission structure is located above the lifting stroke of the lifting frame (5).

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