A borehole reamer

Abstract

The utility model relates to the technical field of drilling and discloses a drilling and reaming machine, comprising: a machine body and a movable ring slidingly arranged at one end of the machine body, a plurality of screw rods are rotationally arranged on one side wall of the movable ring, one end of each screw rod is fixedly connected with a first gear, a reaming head is arranged at one end of the movable ring, the reaming head is used in cooperation with the screw rods, a tooth ring is rotationally connected to the middle of the side wall of the movable ring, the tooth ring is meshingly arranged with the plurality of first gears, a driving member for driving the tooth ring to rotate is arranged on the other side wall of the movable ring, a drill rod is slidingly arranged on the top of the machine body, one end of the drill rod is fixedly connected with a connecting rod, the movable ring is slidingly arranged on the outer side wall of the connecting rod, and one end of the connecting rod is fixedly connected with a fixed ring; the utility model can facilitate the disassembly of the reaming head, improve the working efficiency of the drilling and reaming machine, and ensure the stability of the screw rod connection.

Description

Technical Field

[0001] This utility model belongs to the field of drilling technology, specifically a drilling and reaming machine. Background Technology

[0002] A horizontal drilling and reaming machine is a device capable of drilling and reaming holes in the horizontal direction. During the installation of water supply, drainage and other pipeline systems, drilling and reaming machines can be used to drill holes underground or in buildings to lay pipelines. By reaming, it can ensure that the pipeline can pass smoothly through obstacles such as rocks and concrete. With the development of technology, the application of drilling and reaming machines in the water industry is also constantly expanding. For example, in horizontal directional drilling technology, drilling and reaming machines are used for staged reaming to control the outer diameter of the pipeline and reduce ground settlement.

[0003] Utility model patent application publication number 202120534752.1 discloses a hole-reaming device for a spiral drilling machine, including a vertically arranged and enclosed reaming cylinder, a collecting device rotatably connected to the bottom of the reaming cylinder, a lifting device located inside the reaming cylinder, and a horizontal moving device. A connecting shaft is vertically arranged at the upper end of the reaming cylinder, and a connecting flange for connecting the drill rod of the spiral drilling machine is provided at the top of the connecting shaft. A first connecting rod is provided between the lifting device and the horizontal moving device, with its two ends hinged to the lifting device and the horizontal moving device respectively. The horizontal moving device has a cutting blade extending horizontally out of the reaming cylinder facing the inner wall. Under the lifting action of the lifting device, the horizontal moving device moves left and right via the first connecting rod. The collecting device is used to collect the soil debris that falls off the cutting blade. This device is applicable to different pile diameters, has high hole-reaming efficiency, and is simple to operate.

[0004] As can be seen from the aforementioned patent, there is a drilling and reaming machine, but it still has shortcomings in actual use. The most obvious one is that the current reaming heads are generally fixed by means of flange structure or multiple sets of bolts. In actual operation, when it is necessary to disassemble and replace reaming heads of different specifications, the workers need to use special disassembly tools to disassemble multiple sets of bolts one by one. This disassembly and assembly method is not only cumbersome, but also reduces the working efficiency of the drilling and reaming machine. Therefore, we propose a drilling and reaming machine. Utility Model Content

[0005] The purpose of this utility model is to provide a drilling and reaming machine to solve the problems mentioned in the background art.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0007] Specifically, this application describes a drilling and reaming machine, comprising: a machine body and a movable ring slidably disposed at one end of the machine body. Multiple sets of screws are rotatably disposed on one side wall of the movable ring. A first gear is fixedly connected to one end of each screw near the movable ring. A reaming head is disposed at one end of the movable ring, and the reaming head is used in conjunction with the screws. A toothed ring is rotatably connected to the middle of the side wall of the movable ring, and the toothed ring meshes with multiple sets of first gears. A driving component for driving the toothed ring to rotate is disposed on the other side wall of the movable ring.

[0008] As a preferred technical solution of this application, a drill rod is slidably disposed on the top of the machine body, a connecting rod is fixedly connected to one end of the drill rod, the movable ring is slidably disposed on the outer side wall of the connecting rod, and a fixed ring is fixedly connected to one end of the connecting rod.

[0009] As a preferred technical solution of this application, the side wall of the fixing ring and one end of the enlarged head are respectively provided with a through hole and a threaded hole that match the screw.

[0010] As a preferred technical solution of this application, the driving component includes a rotating rod, a support box is fixedly connected to the top of the movable ring, the rotating rod is rotatably connected to the inner cavity of the support box, a worm wheel is fixedly connected to the outer side wall of the rotating rod, a worm is rotatably connected to the inner side wall of the worm wheel, the worm meshes with the worm wheel, and a second gear meshes with the gear ring is fixedly connected to the bottom of the rotating rod.

[0011] As a preferred technical solution of this application, a protective frame is fixedly connected to one side wall of the support box, a transmission rod is fixedly connected to one end of the worm gear, a fixing block is fixedly connected to the inner cavity of the support box, a limit rod is slidably connected to the inner cavity of the fixing block, an adjusting block is fixedly connected to one end of the limit rod, a spring is fixedly connected between the adjusting block and the fixing block, and a limiting hole matching the limit rod is opened on the side wall of the transmission rod.

[0012] As a preferred technical solution of this application, a protective ring is fixedly connected to the side wall of the movable ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In the scheme of this application:

[0015] 1. By setting a toothed ring, the drive component drives the toothed ring to rotate, which in turn drives multiple sets of first gears to rotate, which in turn drives the screw to rotate. Since the screw is mounted on the movable ring and is threadedly connected to the fixed ring and the reaming head, the screw will gradually unscrew the threaded hole on the reaming head as it rotates, while simultaneously driving the movable ring to slide along the connecting rod in the opposite direction. This facilitates the disassembly of the reaming head and improves the working efficiency of the drilling and reaming machine.

[0016] 2. By rotating the transmission rod, the transmission rod drives the worm to rotate synchronously in the support box. When the worm rotates, it drives the worm wheel and the rotating rod to rotate. The rotating rod then drives the second gear to rotate. Since the second gear meshes with the gear ring, it can drive the gear ring to rotate. The rotation of the gear ring drives multiple sets of first gears to rotate synchronously. Through the design of the worm wheel and worm, the gear ring can achieve self-locking during rotation, thereby ensuring the stability of the screw connection. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0018] In the attached diagram:

[0019] Figure 1 A perspective view of a drilling and reaming machine provided for this application;

[0020] Figure 2 A structural diagram of a reaming head for a drilling and reaming machine is provided in this application;

[0021] Figure 3 This application provides a diagram of the moving ring structure of a drilling and reaming machine;

[0022] Figure 4 A partially disassembled structural diagram of a drilling and reaming machine provided in this application;

[0023] Figure 5 The drilling and reaming machine provided in this application Figure 3 Enlarged view of point A in the middle.

[0024] In the diagram: 100, machine body; 110, drill rod; 120, connecting rod; 130, fixed ring; 200, movable ring; 210, screw; 211, first gear; 220, reaming head; 230, gear ring; 240, support box; 241, rotating rod; 242, worm gear; 243, second gear; 244, worm; 245, transmission rod; 250, protective frame; 251, fixed block; 252, limit rod; 253, adjusting block; 254, spring; 260, protective ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 A drilling and reaming machine includes: a body 100 and a movable ring 200 slidably disposed at one end of the body 100. Multiple sets of screws 210 are rotatably disposed on one side wall of the movable ring 200, and a reaming head 220 is connected to the screws 210. A first gear 211 is fixedly connected to the end of the screws 210 near the movable ring 200, and the first gear 211 is used to drive the screws 210 to rotate. A reaming head 220 is disposed at one end of the movable ring 200, and the reaming head 220 is used for reaming operations. The reaming head 220 is used in conjunction with the screws 210. A toothed ring 230 is rotatably connected to the middle of the side wall of the movable ring 200. The rotation of the toothed ring 230 drives the multiple sets of first gears 211 to rotate. The toothed ring 230 is meshed with the multiple sets of first gears 211. A driving component for driving the toothed ring 230 to rotate is disposed on the other side wall of the movable ring 200.

[0027] Please see Figure 1-4 A drill rod 110 is slidably mounted on the top of the machine body 100. A connecting rod 120 is fixedly connected to one end of the drill rod 110. A movable ring 200 is slidably mounted on the outer side wall of the connecting rod 120. A fixing ring 130 is fixedly connected to one end of the connecting rod 120. The drill rod 110 drives the connecting rod 120 to rotate, and the connecting rod 120 drives the reaming head 220 to rotate through the fixing ring 130.

[0028] Please see Figure 2-4 The side wall of the retaining ring 130 and one end of the reaming head 220 are respectively provided with through holes and threaded holes that match the screw 210. The screw 210 fixes the retaining ring 130 and the reaming head 220 through the threaded holes.

[0029] Please see Figure 2-5 The driving component includes a rotating rod 241. A support box 240 is fixedly connected to the top of the movable ring 200. The rotating rod 241 is rotatably connected to the inner cavity of the support box 240. A worm wheel 242 is fixedly connected to the outer wall of the rotating rod 241. A worm 244 is rotatably connected to the inner wall of the worm wheel 242. The worm 244 meshes with the worm wheel 242. A second gear 243 is fixedly connected to the bottom of the rotating rod 241 and meshes with the gear ring 230. The worm wheel 242 is driven to rotate by the worm 244, which in turn drives the rotating rod 241 and the second gear 243 to rotate. The gear ring 230 is then driven to rotate by the second gear 243.

[0030] Please see Figure 2-5A protective frame 250 is fixedly connected to one side wall of the support box 240. A transmission rod 245 is fixedly connected to one end of the worm gear 244. A fixing block 251 is fixedly connected to the inner cavity of the support box 240. A limit rod 252 is slidably connected to the inner cavity of the fixing block 251. An adjusting block 253 is fixedly connected to one end of the limit rod 252. A spring 254 is fixedly connected between the adjusting block 253 and the fixing block 251. A limiting hole matching the limit rod 252 is opened on the side wall of the transmission rod 245. By rotating the transmission rod 245, the transmission rod 245 drives the worm gear 244 to rotate. The limit rod 252 is used to limit the transmission rod 245. The adjusting block 253 and the spring 254 apply elastic force to the limit rod 252. Specifically, the transmission rod 245 can be driven to rotate by an external electric wrench.

[0031] Please see Figure 1 and Figure 2 A protective ring 260 is fixedly connected to the side wall of the movable ring 200, which protects the screw 210 and the first gear 211 components.

[0032] Specifically, when using this device, the drilling and reaming machine is first connected to the power supply. The drill rod 110 drives the connecting rod 120 to rotate. The connecting rod 120 drives the reaming head 220 to rotate through the fixing ring 130. The reaming head 220 performs reaming operations. When it is necessary to disassemble and replace the reaming head 220, the adjusting block 253 is pulled. The adjusting block 253 drives the limiting rod 252 to move out of the limiting hole. At this time, the transmission rod 245 loses its limit and drives the worm gear 245 to rotate. 44 rotates, the worm 244 drives the worm wheel 242 and the rotating rod 241 to rotate, the rotating rod 241 drives the second gear 243 and the gear ring 230 to rotate, the gear ring 230 drives the first gear 211 and the screw 210 to rotate. At this time, the screw 210 rotates in the threaded hole on the fixed ring 130 and the reaming head 220, and gradually screws out of the threaded hole along the thread. At the same time, it drives the movable ring 200 to slide along the connecting rod 120 in the opposite direction, so that the reaming head 220 loses the limit of the screw 210, and the use is completed.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] 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 drilling and reaming machine, characterized in that, include: The machine body (100) and a movable ring (200) slidably disposed at one end of the machine body (100) are provided. Multiple sets of screws (210) are rotatably disposed on one side wall of the movable ring (200). A first gear (211) is fixedly connected to one end of the screw (210) near the movable ring (200). A reaming head (220) is provided at one end of the movable ring (200). The reaming head (220) is used in conjunction with the screw (210). A toothed ring (230) is rotatably connected to the middle of the side wall of the movable ring (200). The toothed ring (230) is meshed with multiple sets of first gears (211). A driving member for driving the toothed ring (230) to rotate is provided on the other side wall of the movable ring (200).

2. The drilling and reaming machine according to claim 1, characterized in that: A drill rod (110) is slidably disposed on the top of the body (100). A connecting rod (120) is fixedly connected to one end of the drill rod (110). A movable ring (200) is slidably disposed on the outer side wall of the connecting rod (120). A fixing ring (130) is fixedly connected to one end of the connecting rod (120).

3. A drilling and reaming machine according to claim 2, characterized in that: The side wall of the fixing ring (130) and one end of the reaming head (220) are respectively provided with a through hole and a threaded hole that match the screw (210).

4. A drilling and reaming machine according to claim 1, characterized in that: The driving component includes a rotating rod (241), a support box (240) is fixedly connected to the top of the movable ring (200), the rotating rod (241) is rotatably connected to the inner cavity of the support box (240), a worm wheel (242) is fixedly connected to the outer wall of the rotating rod (241), a worm (244) is rotatably connected to the inner wall of the worm wheel (242), the worm (244) meshes with the worm wheel (242), and a second gear (243) meshes with the gear ring (230) at the bottom of the rotating rod (241).

5. A drilling and reaming machine according to claim 4, characterized in that: A protective frame (250) is fixedly connected to one side wall of the support box (240), a transmission rod (245) is fixedly connected to one end of the worm gear (244), a fixing block (251) is fixedly connected to the inner cavity of the support box (240), a limit rod (252) is slidably connected to the inner cavity of the fixing block (251), an adjusting block (253) is fixedly connected to one end of the limit rod (252), a spring (254) is fixedly connected between the adjusting block (253) and the fixing block (251), and a limiting hole matching the limit rod (252) is opened on the side wall of the transmission rod (245).

6. A drilling and reaming machine according to claim 1, characterized in that: A protective ring (260) is fixedly connected to the side wall of the movable ring (200).

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