A geological hole expander with dust suppression function

Abstract

The utility model discloses a geological reamer with dust suppression function, which relates to the technical field of reamer, including a reamer body composed of a mandrel, a support plate, and a water tank, a roller assembly, and a quick-install assembly, wherein the roller assembly includes a roller seat, a roller, a side clamping groove, and a middle plug-in groove; the quick-install assembly includes a side limit block and a middle positioning block; the side limit block is fixed to the top of the support plate and fixedly connected to the outside of the water tank, and the roller seat is clamped in the middle of the two side limit blocks through the side clamping groove and plugged into the outside of the middle positioning block through the middle plug-in groove to realize convenient assembly with the support plate. The utility model can realize convenient disassembly and assembly of the roller assembly by setting a quick-install assembly, which effectively improves the replacement efficiency of the roller assembly compared with the traditional welding structure.

Description

Technical Field

[0001] The utility model relates to the field of hole expanders, in particular to a geological hole expander with a dust suppression function. Background Art

[0002] A geological reamer is a tool used to trim the hole wall, maintain and expand the hole diameter, and stabilize the working state of the lower drill pipe column and the core tube during the geological drilling process. There are many types of geological reamer, one of which is a roller reamer. The roller reamer is an upper tool used to expand the diameter of the wellbore. When drilling, the roller reamer is installed on the drill pipe, and the roller reamer is driven by the drill pipe to move in the wellbore to expand the diameter of the wellbore. The existing roller reamer is provided with water spray holes on the side of the roller, which can use hydraulic impact to flush out the rock cuttings accumulated between the roller and the reamer baffle, and can also play a dust suppression function.

[0003] When the roller reamer is actually used, the rollers need to be replaced regularly due to wear, and the rollers on the existing roller reamer are mostly welded. When replacing the rollers, the old rollers need to be cut off by gas cutting and then welded with new ones, which is time-consuming and laborious. Based on this, a geological reamer with dust suppression function is provided. Utility Model Content

[0004] The purpose of the utility model is to provide a geological reamer with dust suppression function in order to solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a geological reamer with dust suppression function, comprising an reamer body consisting of a mandrel, a support plate, and a water tank, and a cone assembly, wherein the support plate and the water tank are fixed to the outside of the mandrel, the water tank is located on the top of the support plate and is in communication with the inner cavity of the mandrel, the cone assembly is installed on the top of the support plate through a quick-release assembly, and the cone assembly comprises a cone seat, a cone, a side clamping groove, and a middle plug-in groove;

[0006] The cone is rotatably connected to one end of the top of the cone seat, the side clamping grooves are symmetrically arranged at the bottom of both sides of the cone seat, and the middle plug-in groove is arranged at the middle of the bottom of the cone seat;

[0007] The quick-install assembly includes side limit blocks and a middle positioning block;

[0008] The side limit blocks are fixed to the top of the support plate and are fixedly connected to the outside of the water tank, the middle positioning block is fixed to the top of the support plate and close to the outer edge of the support plate, and the side limit blocks are grouped in pairs and are symmetrically distributed with the middle positioning block as the center;

[0009] The gear seat is clamped in the middle of the two side limit blocks through the side clamping groove and plugged into the outer side of the middle positioning block through the middle plugging groove to achieve convenient assembly with the support plate.

[0010] As a further solution of the utility model: a plurality of gear assemblies are arranged on the top of the support plate, and the number of groups of the side limit blocks and the middle positioning blocks matches the number of the gear assemblies and are distributed circumferentially on the top of the support plate.

[0011] As a further solution of the utility model: the quick-release assembly further includes a fixed pressure plate and an outer sleeve;

[0012] The outer sleeve is fixed to the top of the fixed pressure plate, the fixed pressure plate and the outer sleeve are sleeved on the outside of the core shaft, and the fixed pressure plate covers the top of the water tank and the side limit block, and the fixed pressure plate is connected and fixed to the side limit block by bolts.

[0013] As a further solution of the utility model: a threaded barrel portion connected to the drill rod is formed on the top of the core shaft, and the top of the outer sleeve is flush with the bottom of the threaded barrel portion.

[0014] As a further solution of the utility model: a nozzle is fixed on the outside of the water tank, the number of the nozzle is the same as the number of the cone assembly, and the plurality of nozzles are respectively distributed in the middle of the plurality of groups of side limit blocks;

[0015] The outer edge of the fixed pressure plate is formed with a notch groove corresponding to the position of the nozzle.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The quick-release assembly enables the convenient disassembly and assembly of the cone assembly, which effectively improves the replacement efficiency of the cone assembly compared to the traditional welding structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the disassembly of the utility model;

[0020] Figure 3 For the utility model Figure 2 A magnified image of the position in the middle;

[0021] Figure 4 This is another perspective view of the utility model in a disassembled state.

[0022] In the figure: 1. reamer body; 101. mandrel; 102. support plate; 103. water tank; 104. nozzle; 2. gear assembly; 201. gear seat; 202. gear; 203. side clamping groove; 204. middle plug-in groove; 3. quick-release assembly; 301. side limit block; 302. middle positioning block; 303. fixed pressure plate; 304. outer sleeve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 4 In an embodiment of the utility model, a geological reamer with dust suppression function includes a reamer body 1 composed of a core shaft 101, a support plate 102, and a water tank 103, and a cone assembly 2. The support plate 102 and the water tank 103 are fixed to the outside of the core shaft 101. The water tank 103 is located on the top of the support plate 102 and is connected to the inner cavity of the core shaft 101. The cone assembly 2 is installed on the top of the support plate 102 through a quick-release assembly 3. The cone assembly 2 includes a cone seat 201, a cone 202, a side clamping groove 203, and a middle plug-in groove 204.

[0025] The gear 202 is rotatably connected to one end of the top of the gear seat 201, the side clamping grooves 203 are symmetrically arranged at the bottom of both sides of the gear seat 201, and the middle plug-in groove 204 is arranged at the middle of the bottom of the gear seat 201;

[0026] The quick-install assembly 3 includes a side limit block 301 and a middle positioning block 302;

[0027] The side limit blocks 301 are fixed to the top of the support plate 102 and are fixedly connected to the outside of the water tank 103. The middle positioning block 302 is fixed to the top of the support plate 102 and is close to the outer edge of the support plate 102. The side limit blocks 301 are grouped in pairs and are symmetrically distributed with the middle positioning block 302 as the center.

[0028] The gear seat 201 is connected to the middle of the two side limit blocks 301 through the side clamping groove 203 and plugged into the outer side of the middle positioning block 302 through the middle plug-in groove 204 to achieve convenient assembly with the support plate 102;

[0029] A plurality of cone assemblies 2 are arranged on the top of the support plate 102. The number of side limit blocks 301 and middle positioning blocks 302 matches the number of cone assemblies 2 and are circumferentially distributed on the top of the support plate 102.

[0030] The quick-install assembly 3 also includes a fixed pressure plate 303 and an outer sleeve 304;

[0031] The outer sleeve 304 is fixed to the top of the fixed pressure plate 303. The fixed pressure plate 303 and the outer sleeve 304 are sleeved on the outside of the core shaft 101. The fixed pressure plate 303 covers the water tank 103 and the top of the side limit block 301. The fixed pressure plate 303 is connected and fixed to the side limit block 301 by bolts.

[0032] A threaded barrel portion connected to the drill rod is formed at the top of the mandrel 101, and the top of the outer sleeve 304 is flush with the bottom of the threaded barrel portion.

[0033] In this embodiment, when the cone assembly 2 needs to be installed, the operation steps are as follows:

[0034] First, the fixed pressure plate 303 and the outer sleeve 304 are integrally sleeved on the outside of the core shaft 101, and are close to the water tank 103 but keep a certain distance (this distance is used for the installation of the gear assembly 2), then take a set of gear assemblies 2, and insert the gear seat 201 into the outside of the middle positioning block 302 through the middle plug-in groove 204. At this time, the side clamping grooves 203 on both sides of the gear seat 201 are clamped with the side limit blocks 301, and the preliminary installation of this gear assembly 2 is completed. Then, the other gear assemblies 2 are operated in the same way;

[0035] After all the pressure components 2 are preliminarily installed, the fixed pressure plate 303 is moved close to the water tank 103. At this time, the fixed pressure plate 303 is synchronously attached to the side limit block 301 and the end face of the gear seat 201. Then, the fixed pressure plate 303 and the side limit block 301 are fastened by bolts (it should be noted that: a threaded hole is provided on the top of the side limit block 301, and a corresponding installation hole is provided on the fixed pressure plate 303). At this time, the synchronous fixation of multiple gear components 2 is completed;

[0036] When in use, the mandrel 101 is connected to the external drill rod through the top threaded barrel portion, and at this time, the top end face of the outer sleeve 304 fits with the end face of the external drill rod (it should be supplemented that the outer wall diameter of the outer sleeve 304 matches the outer wall diameter of the external drill rod), that is, the external drill rod realizes the limiting function of the outer sleeve 304, thereby further improving the installation stability of the cone assembly 2;

[0037] When the pressure assembly 2 needs to be replaced, it is only necessary to disassemble the reamer body 1 and the external drill rod, and then disassemble the fixed pressure plate 303 and the side limit block 301 to achieve convenient disassembly of the gear assembly 2. Compared with the traditional welding structure, the replacement efficiency of the gear assembly 2 is effectively improved.

[0038] Please refer to Figures 1 to 4A nozzle 104 is fixed on the outside of the water tank 103, the number of the nozzles 104 is the same as the number of the gear assembly 2, and the multiple nozzles 104 are respectively distributed in the middle of multiple groups of side limit blocks 301;

[0039] The outer edge of the fixed pressure plate 303 is formed with a notch groove corresponding to the position of the nozzle 104 .

[0040] In this embodiment: It should be additionally explained that: the interior of the core shaft 101 is a hollow structure, and the drill rod connected to the core shaft 101 is provided with a corresponding water channel. External water is injected into the interior of the core shaft 101 through the water channel on the drill rod, and biscuits are sprayed out through the water tank 103 and the nozzle 104. The hydraulic impact can be used to wash away the cuttings accumulated in the gap of the roller reamer, and it can also play a dust suppression function.

[0041] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A geological reamer with dust suppression function, comprising a reamer body (1) consisting of a core shaft (101), a support plate (102), and a water tank (103), and a cone assembly (2), wherein the support plate (102) and the water tank (103) are fixed to the outside of the core shaft (101), and the water tank (103) is located on the top of the support plate (102) and is in communication with the inner cavity of the core shaft (101), characterized in that: The gear assembly (2) is installed on the top of the support plate (102) through a quick-install assembly (3), and the gear assembly (2) comprises a gear seat (201), a gear (202), a side clamping groove (203) and a middle plug-in groove (204); The gear (202) is rotatably connected to one end of the top of the gear seat (201), the side clamping grooves (203) are symmetrically arranged at the bottoms of both sides of the gear seat (201), and the middle plug-in groove (204) is arranged at the middle of the bottom of the gear seat (201); The quick-install assembly (3) comprises a side limiting block (301) and a middle positioning block (302); The side limit blocks (301) are fixed to the top of the support plate (102) and are fixedly connected to the outside of the water tank (103); the middle positioning block (302) is fixed to the top of the support plate (102) and is close to the outer edge of the support plate (102); the side limit blocks (301) are arranged in groups of two and are symmetrically distributed with the middle positioning block (302) as the center; The gear seat (201) is clamped in the middle of the two side limit blocks (301) through the side clamping groove (203) and plugged into the outside of the middle positioning block (302) through the middle plugging groove (204) to achieve convenient assembly with the support plate (102).

2. A geological reamer with dust suppression function according to claim 1, characterized in that: A plurality of gear assemblies (2) are arranged on the top of the support plate (102); the number of the side limit blocks (301) and the middle positioning blocks (302) matches the number of the gear assemblies (2) and are circumferentially distributed on the top of the support plate (102).

3. A geological reamer with dust suppression function according to claim 2, characterized in that: The quick-install assembly (3) also includes a fixed pressure plate (303) and an outer sleeve (304); The outer sleeve (304) is fixed to the top of the fixed pressure plate (303); the fixed pressure plate (303) and the outer sleeve (304) are sleeved on the outside of the core shaft (101); the fixed pressure plate (303) covers the top of the water tank (103) and the side limit block (301); the fixed pressure plate (303) is connected and fixed to the side limit block (301) by bolts.

4. A geological reamer with dust suppression function according to claim 3, characterized in that: A threaded barrel portion connected to the drill rod is formed at the top of the core shaft (101), and the top of the outer sleeve (304) is flush with the bottom of the threaded barrel portion.

5. The geological reamer with dust suppression function according to claim 3, characterized in that: A nozzle (104) is fixed on the outside of the water tank (103), the number of the nozzles (104) is the same as the number of the gear assembly (2), and the plurality of nozzles (104) are respectively distributed in the middle of the plurality of groups of side limit blocks (301); The outer edge of the fixed pressure plate (303) is formed with a notch groove corresponding to the position of the spray head (104).

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